984 WUUS53 KLOT 121403 SVRLOT ILC063-089-093-121500- /O.NEW.KLOT.SV.W.0252.260812T1403Z-260812T1500Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Chicago/Romeoville 903 AM CDT Wed Aug 12 2026 The National Weather Service in Chicago has issued a * Severe Thunderstorm Warning for... Kendall County in northeastern Illinois... Grundy County in northeastern Illinois... Southern Kane County in northeastern Illinois... * Until 1000 AM CDT. * At 902 AM CDT, a line of severe thunderstorms extended from Shabbona to Leland to Wedron to Ottawa, and was moving east at 40 to 45 mph. HAZARD...70 mph wind gusts. The strongest wind gusts are expected between the Interstate 88 and 80 corridors, particularly across Kendall County. SOURCE...Radar indicated. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. * Locations impacted include... Aurora, Joliet, Plainfield, St. Charles, Oswego, West Chicago, Batavia, Geneva, Yorkville, Morris, Channahon, Minooka, Plano, Sandwich, Coal City, Montgomery, North Aurora, Sugar Grove, Boulder Hill, Elburn, Diamond, Seneca, Mazon, Newark, and Braceville. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4120 8825 4120 8859 4190 8860 4190 8826 TIME...MOT...LOC 1402Z 268DEG 37KT 4179 8899 4168 8893 4152 8885 4142 8884 4134 8886 TORNADO...POSSIBLE THUNDERSTORM DAMAGE THREAT...CONSIDERABLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...70 MPH $$ Borchardt  563 WGUS73 KLMK 121404 FFSLMK Flash Flood Statement National Weather Service Louisville KY 1004 AM EDT Wed Aug 12 2026 INC077-KYC223-121414- /O.CAN.KLMK.FF.W.0125.000000T0000Z-260812T1415Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Jefferson IN-Trimble KY- 1004 AM EDT Wed Aug 12 2026 ...FLASH FLOOD WARNING IS CANCELLED FOR NORTHEASTERN JEFFERSON AND NORTHERN TRIMBLE COUNTIES... The heavy rain has ended. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. A Flood Watch remains in effect until 800 AM EDT Thursday for portions of Indiana and Kentucky. && LAT...LON 3873 8534 3890 8550 3891 8551 3891 8521 3892 8520 3871 8520 3870 8522 3874 8526 3874 8533 3873 8533 $$ AMS  008 WWUS53 KEAX 121404 SVSEAX Severe Weather Statement National Weather Service Kansas City/Pleasant Hill MO 904 AM CDT Wed Aug 12 2026 MOC001-211-121414- /O.CAN.KEAX.SV.W.0456.000000T0000Z-260812T1430Z/ Adair MO-Sullivan MO- 904 AM CDT Wed Aug 12 2026 ...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL ADAIR AND EAST CENTRAL SULLIVAN COUNTIES IS CANCELLED... The storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. Therefore, the warning has been cancelled. However, gusty winds are still possible with this thunderstorm. && LAT...LON 4011 9280 4014 9307 4030 9306 4029 9282 4020 9283 4017 9280 TIME...MOT...LOC 1403Z 274DEG 31KT 4018 9294 $$ Krull  429 WWUS53 KDVN 121406 SVSDVN Severe Weather Statement National Weather Service Quad Cities IA/IL 906 AM CDT Wed Aug 12 2026 MOC045-121416- /O.EXP.KDVN.SV.W.0267.000000T0000Z-260812T1415Z/ Clark MO- 906 AM CDT Wed Aug 12 2026 ...THE SEVERE THUNDERSTORM WARNING FOR CLARK COUNTY WILL EXPIRE AT 915 AM CDT... The storms which prompted the warning have weakened below severe limits, and no longer pose an immediate threat to life or property. Therefore, the warning will be allowed to expire. However, heavy rain is still possible with these thunderstorms. A Severe Thunderstorm Watch remains in effect until 100 PM CDT for west central Illinois. && LAT...LON 4026 9193 4030 9195 4043 9194 4043 9191 4054 9162 4051 9162 4047 9158 4046 9156 4046 9152 4044 9153 4041 9153 4040 9149 4038 9148 4037 9146 4038 9142 4034 9147 4025 9150 TIME...MOT...LOC 1406Z 283DEG 37KT 4041 9122 4017 9159 $$ Gibbs  214 WWUS53 KLOT 121407 SVSLOT Severe Weather Statement National Weather Service Chicago/Romeoville 907 AM CDT Wed Aug 12 2026 ILC099-121415- /O.CON.KLOT.TO.W.0076.000000T0000Z-260812T1415Z/ La Salle IL- 907 AM CDT Wed Aug 12 2026 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 915 AM CDT FOR NORTHEASTERN LA SALLE COUNTY... At 907 AM CDT, a severe squall line capable of producing both tornadoes and extensive straight line wind damage was located over Leland, or near Sheridan, moving east at 50 mph. HAZARD...Tornado. SOURCE...Radar indicated rotation. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be damaged or destroyed. Damage to roofs, windows, and vehicles will occur. Tree damage is likely. These dangerous storms will be near... Sheridan, Lake Holiday, and Somonauk around 910 AM CDT. Other locations impacted by this tornadic thunderstorm include Millington, Norway, Dayton, and Wedron. PRECAUTIONARY/PREPAREDNESS ACTIONS... This cluster of thunderstorms is capable of producing tornadoes and widespread significant wind damage. Do not wait to see or hear the tornado. For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4163 8883 4163 8860 4132 8859 4133 8879 TIME...MOT...LOC 1407Z 271DEG 44KT 4159 8876 TORNADO...RADAR INDICATED MAX HAIL SIZE...0.00 IN $$ Izzi  244 WWUS53 KLOT 121409 SVSLOT Severe Weather Statement National Weather Service Chicago/Romeoville 909 AM CDT Wed Aug 12 2026 ILC141-121418- /O.CAN.KLOT.SV.W.0251.000000T0000Z-260812T1445Z/ Ogle IL- 909 AM CDT Wed Aug 12 2026 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN OGLE COUNTY IS CANCELLED... The storms which prompted the warning have weakened. Therefore, the warning has been cancelled. A Severe Thunderstorm Watch remains in effect until 100 PM CDT for north central and northeastern Illinois. && LAT...LON 4183 8911 4190 8860 4163 8860 4163 8904 4173 8905 TIME...MOT...LOC 1408Z 264DEG 37KT 4191 8905 4185 8895 4171 8885 4154 8877 $$ ILC037-103-121445- /O.CON.KLOT.SV.W.0251.000000T0000Z-260812T1445Z/ Lee IL-De Kalb IL- 909 AM CDT Wed Aug 12 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 AM CDT FOR EAST CENTRAL LEE AND SOUTHERN DE KALB COUNTIES... At 908 AM CDT, severe thunderstorms were located along a line extending from Stweard to Paw Paw, moving east at 45 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Sandwich, Shabbona, Hinckley, Somonauk, Waterman, Paw Paw, and Lee. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4183 8911 4190 8860 4163 8860 4163 8904 4173 8905 TIME...MOT...LOC 1408Z 264DEG 37KT 4191 8905 4185 8895 4171 8885 4154 8877 TORNADO...POSSIBLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Borchardt  745 WWUS53 KLOT 121411 SVSLOT Severe Weather Statement National Weather Service Chicago/Romeoville 911 AM CDT Wed Aug 12 2026 ILC099-121445- /O.CON.KLOT.SV.W.0250.000000T0000Z-260812T1445Z/ La Salle IL- 911 AM CDT Wed Aug 12 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 AM CDT FOR NORTHEASTERN LA SALLE COUNTY... At 911 AM CDT, a line of severe thunderstorms extended from Leland to Sheridan to Grand Ridge, and was moving east at 45 mph. HAZARD...70 mph wind gusts. The strongest wind gusts are expected along and north of Interestate 80. SOURCE...Radar indicated. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. These severe storms will be near... Marseilles, Lake Holiday, Seneca, and Somonauk around 915 AM CDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4163 8904 4163 8860 4119 8859 4123 8891 4138 8892 TIME...MOT...LOC 1411Z 264DEG 38KT 4166 8877 4154 8868 4135 8869 4120 8878 TORNADO...POSSIBLE THUNDERSTORM DAMAGE THREAT...CONSIDERABLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...70 MPH $$ Borchardt  505 WWUS53 KLOT 121414 SVSLOT Severe Weather Statement National Weather Service Chicago/Romeoville 914 AM CDT Wed Aug 12 2026 ILC099-121422- /O.EXP.KLOT.TO.W.0076.000000T0000Z-260812T1415Z/ La Salle IL- 914 AM CDT Wed Aug 12 2026 ...THE TORNADO WARNING FOR NORTHEASTERN LA SALLE COUNTY WILL EXPIRE AT 915 AM CDT... The circulation within the line of severe storms has weakened and a tornado no longer appears imminent, therefore, the warning will be allowed to expire. A Severe Thunderstorm Watch remains in effect until 100 PM CDT for north central and northeastern Illinois. Remember, a Severe Thunderstorm Warning still remains in effect for eastern LaSalle County until 945 AM CDT. && LAT...LON 4163 8883 4163 8860 4132 8859 4133 8879 TIME...MOT...LOC 1412Z 276DEG 44KT 4159 8872 $$ Izzi  449 FZUS73 KDTX 121416 MWSDTX Marine Weather Statement National Weather Service Detroit/Pontiac MI 1016 AM EDT Wed Aug 12 2026 LHZ441-462-121445- 1016 AM EDT Wed Aug 12 2026 ...A STRONG THUNDERSTORM OVER THE WATERS... The areas affected include... Lake Huron from Port Austin to Harbor Beach 5NM Off Shore to the US/Canadian border... Port Austin to Harbor Beach MI... At 1016 AM EDT, Doppler radar indicated a strong thunderstorm, capable of producing winds up to 30 knots and small hail. This thunderstorm was located 11 nm south of Central Lake Huron Buoy, moving east at 35 knots. The strong thunderstorm will remain over mainly open waters. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners can expect gusty winds up to 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until this storm passes. && LAT...LON 4417 8225 4387 8218 4400 8282 4418 8268 $$ TF  681 WWUS53 KLOT 121416 SVSLOT Severe Weather Statement National Weather Service Chicago/Romeoville 916 AM CDT Wed Aug 12 2026 ILC063-089-093-121500- /O.CON.KLOT.SV.W.0252.000000T0000Z-260812T1500Z/ Kendall IL-Grundy IL-Kane IL- 916 AM CDT Wed Aug 12 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 AM CDT FOR KENDALL...GRUNDY AND SOUTHERN KANE COUNTIES... At 915 AM CDT, a line of severe thunderstorms extended from Waterman to Sandwich to Senica, and was moving east at 45 mph. HAZARD...60 mph wind gusts. The strongest wind gusts are expected between the Interstate 80 and 88 corridors. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Aurora, Joliet, Plainfield, St. Charles, Oswego, West Chicago, Batavia, Geneva, Yorkville, Morris, Channahon, Minooka, Plano, Sandwich, Coal City, Montgomery, North Aurora, Sugar Grove, Boulder Hill, Elburn, Diamond, Seneca, Mazon, Newark, and Braceville. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4120 8825 4120 8859 4190 8860 4190 8826 TIME...MOT...LOC 1415Z 267DEG 40KT 4179 8876 4168 8870 4152 8862 4142 8861 4134 8863 TORNADO...POSSIBLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Borchardt  796 WGUS53 KIND 121417 FFWIND INC035-122015- /O.NEW.KIND.FF.W.0045.260812T1417Z-260812T2015Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Indianapolis IN 1017 AM EDT Wed Aug 12 2026 ...FLASH FLOOD EMERGENCY FOR MUNCIE... The National Weather Service in Indianapolis has issued a * Flash Flood Warning for... Delaware County in east central Indiana... * Until 415 PM EDT. * At 1017 AM EDT, emergency management reported thunderstorms producing heavy rain in Muncie. Between 3 and 6 inches of rain have fallen. The expected rainfall rate is 0.5 to 1.25 inches in 1 hour. Additional rainfall amounts up to 2 inches are possible in the warned area. Flash flooding is already occurring. This is a FLASH FLOOD EMERGENCY for Muncie. This is a PARTICULARLY DANGEROUS SITUATION. SEEK HIGHER GROUND NOW! HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Emergency management reported. IMPACT...This is a PARTICULARLY DANGEROUS SITUATION. SEEK HIGHER GROUND NOW! Life threatening flash flooding of low water crossings, small creeks and streams, urban areas, highways, streets and underpasses. * Some locations that will experience flash flooding include... Muncie, Yorktown, Chesterfield, Albany, Eaton, Daleville, Gaston, Selma, Ball State University and Prairie Creek Reservoir. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to higher ground now! This is an extremely dangerous and life-threatening situation. Do not attempt to travel unless you are fleeing an area subject to flooding or under an evacuation order. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. && LAT...LON 4008 8521 4008 8558 4038 8558 4038 8522 FLASH FLOOD...OBSERVED FLASH FLOOD DAMAGE THREAT...CATASTROPHIC EXPECTED RAINFALL RATE...0.5-1.25 INCHES IN 1 HOUR $$ Eckhoff  107 WWUS53 KILX 121418 SVSILX Severe Weather Statement National Weather Service Lincoln IL 918 AM CDT Wed Aug 12 2026 ILC123-121428- /O.CAN.KILX.SV.W.0349.000000T0000Z-260812T1430Z/ Marshall- 918 AM CDT Wed Aug 12 2026 ...THE SEVERE THUNDERSTORM WARNING FOR EASTERN MARSHALL COUNTY IS CANCELLED... The storm which prompted the warning has moved out of the area. Therefore, the warning has been cancelled. A Severe Thunderstorm Watch remains in effect until 100 PM CDT for central Illinois. && LAT...LON 4110 8905 4093 8905 4093 8928 4100 8947 4110 8935 TIME...MOT...LOC 1417Z 289DEG 35KT 4095 8894 $$ Auten  065 WGUS51 KILN 121420 FFWILN OHC017-121715- /O.NEW.KILN.FF.W.0065.260812T1420Z-260812T1715Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Wilmington OH 1020 AM EDT Wed Aug 12 2026 The National Weather Service in Wilmington has issued a * Flash Flood Warning for... Butler County in southwestern Ohio... * Until 115 PM EDT. * At 1020 AM EDT, radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 1.5 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that may experience flash flooding include... Hamilton, Fairfield, Oxford, Sharonville, Monroe, Trenton, Springdale, West Chester, Ross, Seven Mile, Williamsdale, Darrtown, Olde West Chester, Wetherington, Reily, New Miami and Millville. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Move to higher ground now. Act quickly to protect your life. To report flash flooding, go to our website at weather.gov/iln and submit your report via social media, when you can do so safely. && LAT...LON 3957 8447 3929 8435 3931 8463 3931 8482 3955 8481 3957 8480 FLASH FLOOD...RADAR INDICATED $$ JDR  207 WGUS51 KILN 121422 FFWILN INC029-115-155-KYC041-077-121730- /O.EXT.KILN.FF.W.0060.000000T0000Z-260812T1730Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Wilmington OH 1022 AM EDT Wed Aug 12 2026 The National Weather Service in Wilmington has extended the * Flash Flood Warning for... Southwestern Dearborn County in southeastern Indiana... Ohio County in southeastern Indiana... Switzerland County in southeastern Indiana... Carroll County in northern Kentucky... Gallatin County in northern Kentucky... * Until 130 PM EDT. * At 1022 AM EDT, radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 2 and 3 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar and automated gauges. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that may experience flash flooding include... Carrollton, Vevay, Warsaw, Dillsboro, Florence, Kentucky Speedway, Pleasant, Glencoe, Fairview, Ghent, Sanders, Sparta, Worthville, Prestonville, Mount Sterling, Jacksonville, Center Square, Markland, US Route 42 at State Route 184 and Easterday. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Move to higher ground now. Act quickly to protect your life. To report flash flooding, go to our website at weather.gov/iln and submit your report via social media, when you can do so safely. && LAT...LON 3869 8520 3893 8520 3893 8514 3907 8511 3872 8479 3870 8482 3871 8483 3870 8485 3870 8487 3867 8491 3867 8493 3865 8494 3863 8502 3861 8503 3861 8506 3859 8507 3858 8521 3863 8523 3874 8533 3874 8526 FLASH FLOOD...RADAR AND GAUGE INDICATED $$ JDR  984 WUUS53 KLOT 121426 SVRLOT ILC031-043-091-197-121545- /O.NEW.KLOT.SV.W.0253.260812T1426Z-260812T1545Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Chicago/Romeoville 926 AM CDT Wed Aug 12 2026 The National Weather Service in Chicago has issued a * Severe Thunderstorm Warning for... Will County in northeastern Illinois... Northern Kankakee County in northeastern Illinois... DuPage County in northeastern Illinois... Cook County in northeastern Illinois... * Until 1045 AM CDT. * At 925 AM CDT, a line of severe thunderstorms extended from Hinckley to Morris to Mazon, and was moving east at 50 mph. HAZARD...60 mph wind gusts. SOURCE...Trained weather spotters. Wind gusts up to 60 mph were reported in Grundy County with this storm. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Chicago, Aurora, Joliet, Naperville, Cicero, Evanston, Bolingbrook, Skokie, Orland Park, Tinley Park, Oak Lawn, Berwyn, Wheaton, Oak Park, Downers Grove, Elmhurst, Lombard, Ohare Airport, Carol Stream, Romeoville, Plainfield, Park Ridge, Calumet City, Addison, and Glendale Heights. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4120 8824 4190 8826 4204 8767 4190 8762 4190 8760 4183 8760 4172 8753 4116 8753 TIME...MOT...LOC 1425Z 265DEG 44KT 4157 8845 TORNADO...POSSIBLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...OBSERVED MAX WIND GUST...60 MPH $$ Borchardt  294 WGUS53 KIND 121426 FFWIND INC067-159-121730- /O.NEW.KIND.FF.W.0046.260812T1426Z-260812T1730Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Indianapolis IN 1026 AM EDT Wed Aug 12 2026 The National Weather Service in Indianapolis has issued a * Flash Flood Warning for... Howard County in central Indiana... Tipton County in central Indiana... * Until 130 PM EDT. * At 1026 AM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. The expected rainfall rate is 0.25 to 1.25 inches in 1 hour. Additional rainfall amounts of 0.5 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Kokomo, Elwood, Tipton, Windfall, Greentown, Russiaville, Sharpsville and Indian Heights. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. && LAT...LON 4037 8628 4039 8628 4039 8631 4043 8631 4043 8638 4056 8637 4057 8586 4022 8586 4022 8597 4034 8624 4037 8624 FLASH FLOOD...RADAR INDICATED EXPECTED RAINFALL RATE...0.25-1.25 INCHES IN 1 HOUR $$ Eckhoff  448 WHUS53 KLOT 121427 SMWLOT LMZ741>745-779-121630- /O.NEW.KLOT.MA.W.0073.260812T1427Z-260812T1630Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Chicago/Romeoville 927 AM CDT Wed Aug 12 2026 The National Weather Service in Chicago has issued a * Special Marine Warning for... Nearshore Waters from Wilmette Harbor to Calumet Harbor... Nearshore Waters from Calumet Harbor to Michigan City... Open Waters from Wilmette Harbor to Michigan City out to Mid Lake... * Until 1130 AM CDT. * At 927 AM CDT, severe thunderstorms were located along a line extending from 18 nm southwest of Elgin to 10 nm southwest of Aurora to 21 nm southwest of Joliet, moving east at 40 knots. HAZARD...Wind gusts in excess of 50 knots. SOURCE...Radar. IMPACT...Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. * Severe thunderstorms will be near... 31st Street Harbor, Calumet Harbor, Jackson Park Harbor, Hammond Marina, and 59th Street Marina around 1020 AM CDT. Montrose Harbor, Monroe Harbor, Indiana Harbor, Burnham Harbor, Belmont Harbor, Diversy Harbor, and DuSable Harbor around 1025 AM CDT. Wilmette Harbor and Harrison-Dever Crib around 1030 AM CDT. Burns Harbor and Marina Shores at Dune Harbor around 1045 AM CDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... && LAT...LON 4162 8733 4164 8743 4168 8743 4167 8744 4169 8750 4183 8760 4189 8762 4189 8760 4190 8762 4208 8768 4211 8760 4212 8696 4179 8697 4179 8696 4172 8691 4163 8716 4162 8732 4161 8732 TIME...MOT...LOC 1427Z 262DEG 40KT 4191 8867 4162 8843 4124 8843 HAIL...0.00IN WIND...50KTS $$ Izzi  270 WWUS53 KLOT 121427 SVSLOT Severe Weather Statement National Weather Service Chicago/Romeoville 927 AM CDT Wed Aug 12 2026 ILC063-089-093-121500- /O.CON.KLOT.SV.W.0252.000000T0000Z-260812T1500Z/ Kendall IL-Grundy IL-Kane IL- 927 AM CDT Wed Aug 12 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 AM CDT FOR KENDALL...GRUNDY AND SOUTHERN KANE COUNTIES... At 927 AM CDT, a line of severe thunderstorms extended from Big Rock to Lisbon to Mazon, moving east at 50 mph. HAZARD...60 mph wind gusts. SOURCE...Trained weather spotters. 60 mph wind gusts were reported in Grundy County with this storm. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Aurora, Joliet, Plainfield, St. Charles, Oswego, West Chicago, Batavia, Geneva, Yorkville, Morris, Channahon, Minooka, Plano, Sandwich, Coal City, Montgomery, North Aurora, Sugar Grove, Boulder Hill, Elburn, Diamond, Seneca, Mazon, Newark, and Braceville. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4120 8825 4120 8859 4190 8860 4190 8826 TIME...MOT...LOC 1427Z 266DEG 39KT 4181 8854 4170 8848 4154 8840 4144 8839 4136 8841 TORNADO...POSSIBLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...OBSERVED MAX WIND GUST...60 MPH $$ Borchardt  873 WWUS53 KLOT 121428 SVSLOT Severe Weather Statement National Weather Service Chicago/Romeoville 928 AM CDT Wed Aug 12 2026 ILC037-103-121438- /O.CAN.KLOT.SV.W.0251.000000T0000Z-260812T1445Z/ Lee IL-De Kalb IL- 928 AM CDT Wed Aug 12 2026 ...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL LEE AND SOUTHERN DE KALB COUNTIES IS CANCELLED... The storms which prompted the warning have moved out of the area. Therefore, the warning has been cancelled. A Severe Thunderstorm Watch remains in effect until 100 PM CDT for north central and northeastern Illinois. To report severe weather, contact your nearest law enforcement agency. They will relay your report to the National Weather Service Chicago. && LAT...LON 4183 8911 4190 8860 4163 8860 4163 8904 4173 8905 TIME...MOT...LOC 1426Z 264DEG 37KT 4193 8880 4187 8870 4173 8860 4156 8852 $$ Borchardt  782 WWUS53 KLOT 121429 SVSLOT Severe Weather Statement National Weather Service Chicago/Romeoville 929 AM CDT Wed Aug 12 2026 ILC099-121439- /O.CAN.KLOT.SV.W.0250.000000T0000Z-260812T1445Z/ La Salle IL- 929 AM CDT Wed Aug 12 2026 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LA SALLE COUNTY IS CANCELLED... The storms which prompted the warning have moved out of the area. Therefore, the warning has been cancelled. A Severe Thunderstorm Watch remains in effect until 100 PM CDT for north central and northeastern Illinois. To report severe weather, contact your nearest law enforcement agency. They will relay your report to the National Weather Service Chicago. && LAT...LON 4163 8904 4163 8860 4119 8859 4123 8891 4138 8892 TIME...MOT...LOC 1426Z 267DEG 36KT 4167 8857 4155 8848 4136 8849 4121 8858 $$ Borchardt  964 WGUS71 KILN 121432 FFSILN Flash Flood Statement National Weather Service Wilmington OH 1032 AM EDT Wed Aug 12 2026 INC041-161-177-121615- /O.CON.KILN.FF.W.0063.000000T0000Z-260812T1615Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Fayette IN-Union IN-Wayne IN- 1032 AM EDT Wed Aug 12 2026 ...FLASH FLOOD EMERGENCY FOR CAMBRIDGE CITY, BROWNSVILLE AND DUNLAPSVILLE INDIANA... ...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1215 PM EDT THIS AFTERNOON FOR SOUTHEASTERN FAYETTE, UNION AND WAYNE COUNTIES IN EAST CENTRAL INDIANA... At 1032 AM EDT, local law enforcement reported flash flooding in Numerous flooded roads across the warned area, with up to 5 feet of water in Cambridge City. Between 3.5 and 6.5 inches of rain have fallen. Additional rainfall amounts of 1 to 2.5 inches are possible. FLASH FLOOD EMERGENCY for Cambridge City, Brownsville and Dunlapsville Indiana. This is a PARTICULARLY DANGEROUS SITUATION. SEEK HIGHER GROUND NOW! HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Law enforcement reported. IMPACT...This is a PARTICULARLY DANGEROUS SITUATION. SEEK HIGHER GROUND NOW! Life threatening flash flooding of low water crossings, small creeks and streams, urban areas, highways, streets and underpasses. Some locations that may experience flash flooding include... Richmond, Centerville, Liberty, Hagerstown, Fountain City, Franklin, Salem, Abington, Brownsville, Greens Fork, Spring Grove, Economy, Philomath, Interstate 70 at Exit 145, Clifton, Jacksonburg, Springersville, Williamsburg, Whitewater State Park and Alquina. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to higher ground now! This is an extremely dangerous and life-threatening situation. Do not attempt to travel unless you are fleeing an area subject to flooding or under an evacuation order. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Stay away or be swept away. River banks and culverts can become unstable and unsafe. To report flash flooding, go to our website at weather.gov/iln and submit your report via social media, when you can do so safely. && LAT...LON 3972 8510 3980 8512 3983 8512 3983 8522 3987 8522 3987 8520 4000 8520 4000 8505 4001 8488 3987 8486 3952 8488 3952 8496 3953 8506 FLASH FLOOD...OBSERVED FLASH FLOOD DAMAGE THREAT...CATASTROPHIC $$ JDR  869 WWUS53 KLOT 121433 SVSLOT Severe Weather Statement National Weather Service Chicago/Romeoville 933 AM CDT Wed Aug 12 2026 ILC031-043-091-197-121545- /O.CON.KLOT.SV.W.0253.000000T0000Z-260812T1545Z/ Will IL-Kankakee IL-DuPage IL-Cook IL- 933 AM CDT Wed Aug 12 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 AM CDT FOR WILL...NORTHERN KANKAKEE...DUPAGE AND COOK COUNTIES... At 932 AM CDT, a line of severe thunderstorms extends from Maple Park to Sugar Grove to Oswego to Morris, moving east at 50 mph. HAZARD...70 mph wind gusts. The strongest winds are taking aim at northern Will County including Plainfield, Crystal Lawns, Lockport, Romeoville, and Bolingbrook. SOURCE...Trained weather spotters. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. Locations impacted include... Chicago, Aurora, Joliet, Naperville, Cicero, Evanston, Bolingbrook, Skokie, Orland Park, Tinley Park, Oak Lawn, Berwyn, Wheaton, Oak Park, Downers Grove, Elmhurst, Lombard, Ohare Airport, Carol Stream, Romeoville, Plainfield, Park Ridge, Calumet City, Addison, and Glendale Heights. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4120 8824 4190 8826 4204 8767 4190 8762 4190 8760 4183 8760 4172 8753 4116 8753 TIME...MOT...LOC 1432Z 270DEG 44KT 4157 8832 TORNADO...POSSIBLE THUNDERSTORM DAMAGE THREAT...CONSIDERABLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...OBSERVED MAX WIND GUST...70 MPH $$ Borchardt  065 WGUS53 KLOT 121437 FFWLOT ILC063-091-093-099-197-121730- /O.NEW.KLOT.FF.W.0050.260812T1437Z-260812T1730Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Chicago IL 937 AM CDT Wed Aug 12 2026 The National Weather Service in Chicago has issued a * Flash Flood Warning for... Northeastern La Salle County in north central Illinois... Grundy County in northeastern Illinois... Northern Kankakee County in northeastern Illinois... Southern Kendall County in northeastern Illinois... Will County in northeastern Illinois... * Until 1230 PM CDT. * At 937 AM CDT, Doppler radar and automated rain gauges indicated thunderstorms with rainfall rates up to 3 inches per hour. Up to 3 inches of rainfall was reported from these storms near Ottawa. Flash flooding is expected to begin shortly after the onset of heavy rainfall. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar and automated gauges. IMPACT...Rapid-onset flooding of creeks, streams, drainage ditches, streets, underpasses, low-lying areas, and other poor drainage areas. * Some locations that will experience flash flooding include... Joliet, Tinley Park, Kankakee, New Lenox, Park Forest, Mokena, Bourbonnais, Frankfort, Bradley, Morris, Channahon, Minooka, Steger, Manteno, Braidwood and Wilmington. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Warning means rapid-onset flooding is imminent or may already be occurring. Persons along creeks, drainage ditches, and other waterways should take immediate precautions to protect life and property. && LAT...LON 4111 8859 4111 8877 4157 8879 4158 8825 4156 8791 4156 8779 4147 8779 4147 8753 4111 8753 FLASH FLOOD...RADAR AND GAUGE INDICATED EXPECTED RAINFALL RATE...3 INCHES IN 1 HOUR $$ WSL  027 WGUS53 KLMK 121438 FFWLMK KYC005-067-079-113-167-239-121615- /O.EXT.KLMK.FF.W.0127.000000T0000Z-260812T1615Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Louisville KY 1038 AM EDT Wed Aug 12 2026 The National Weather Service in Louisville has extended the * Flash Flood Warning for... Northeastern Anderson County in central Kentucky... Southwestern Fayette County in central Kentucky... Northern Garrard County in central Kentucky... Jessamine County in central Kentucky... Northeastern Mercer County in central Kentucky... Woodford County in central Kentucky... * Until 1215 PM EDT. * At 1038 AM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2 and 4 inches of rain have fallen. Additional rainfall amounts up to 1 inch are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Nicholasville, Versailles, Wilmore, Pinckard, Dixon Town, Keene, Troy, Little Texas and Mortonsville. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. && LAT...LON 3812 8487 3812 8486 3813 8487 3814 8486 3814 8467 3802 8460 3791 8445 3777 8466 3789 8479 3792 8483 3805 8483 3808 8486 3811 8487 FLASH FLOOD...RADAR INDICATED $$ AMS  774 WGUS73 KDVN 121439 FFSDVN Flash Flood Statement National Weather Service Quad Cities IA IL 939 AM CDT Wed Aug 12 2026 IAC011-095-103-113-121449- /O.CAN.KDVN.FF.W.0032.000000T0000Z-260812T1615Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Benton IA-Iowa IA-Johnson IA-Linn IA- 939 AM CDT Wed Aug 12 2026 ...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHERN BENTON, NORTHEASTERN IOWA, NORTHERN JOHNSON AND SOUTHWESTERN LINN COUNTIES... Flood waters have receded according to law enforcement. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. If you noted flash flooding, please pass along to law enforcement for relay to the National Weather Service. && LAT...LON 4198 9230 4209 9230 4203 9195 4186 9137 4163 9137 4181 9215 4186 9220 $$  200 WWUS53 KLOT 121441 SVSLOT Severe Weather Statement National Weather Service Chicago/Romeoville 941 AM CDT Wed Aug 12 2026 ILC063-089-093-121500- /O.CON.KLOT.SV.W.0252.000000T0000Z-260812T1500Z/ Kendall IL-Grundy IL-Kane IL- 941 AM CDT Wed Aug 12 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 AM CDT FOR EASTERN KENDALL...NORTHEASTERN GRUNDY AND SOUTHEASTERN KANE COUNTIES... At 940 AM CDT, a line of severe thunderstorms extended from Aurora to Morris, and was moving east at 45 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Aurora, Joliet, Plainfield, St. Charles, Oswego, West Chicago, Batavia, Geneva, Yorkville, Morris, Channahon, Minooka, Coal City, Montgomery, North Aurora, Sugar Grove, Boulder Hill, Elburn, Diamond, Mazon, Braceville, Godley, Carbon Hill, Plattville, and Bristol. PRECAUTIONARY/PREPAREDNESS ACTIONS... A tornado watch remains in effect for the warned area. Tornadoes can develop quickly from severe thunderstorms. Although a tornado is not immediately likely, if one is spotted act quickly and move to a place of safety inside a sturdy structure, such as a basement or small interior room. For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4120 8825 4120 8847 4152 8845 4172 8846 4190 8848 4190 8826 TIME...MOT...LOC 1440Z 262DEG 39KT 4178 8843 4171 8831 4161 8822 4144 8826 4137 8833 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Borchardt  739 WGUS53 KIND 121441 FFWIND INC095-121815- /O.EXT.KIND.FF.W.0044.000000T0000Z-260812T1815Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Indianapolis IN 1041 AM EDT Wed Aug 12 2026 The National Weather Service in Indianapolis has extended the * Flash Flood Warning for... Madison County in central Indiana... * Until 215 PM EDT. * At 1041 AM EDT, emergency management reported thunderstorms producing heavy rain across the warned area. Between 2 and 4 inches of rain have fallen. The expected rainfall rate is 0.25 to 1.25 inches in 1 hour. Additional rainfall amounts up to 2 inches are possible in the warned area. Flash flooding is already occurring. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Emergency management reported. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. * Some locations that will experience flash flooding include... Anderson, Elwood, Alexandria, Pendleton, Fortville, Chesterfield, Ingalls, Lapel, Edgewood, Frankton, Summitville, Markleville, Orestes, Woodlawn Heights, Country Club Heights and River Forest. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. && LAT...LON 4038 8581 4038 8577 4038 8573 4038 8572 4038 8569 4038 8568 4038 8567 4038 8564 4038 8563 4038 8559 4038 8558 3995 8558 3995 8571 3995 8573 3994 8575 3994 8578 3994 8580 3994 8586 4038 8586 FLASH FLOOD...OBSERVED FLASH FLOOD DAMAGE THREAT...CONSIDERABLE EXPECTED RAINFALL RATE...0.25-1.25 INCHES IN 1 HOUR $$ Eckhoff  097 WWUS53 KLOT 121442 SVSLOT Severe Weather Statement National Weather Service Chicago/Romeoville 942 AM CDT Wed Aug 12 2026 ILC031-043-091-197-121545- /O.CON.KLOT.SV.W.0253.000000T0000Z-260812T1545Z/ Will IL-Kankakee IL-DuPage IL-Cook IL- 942 AM CDT Wed Aug 12 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 AM CDT FOR WILL...NORTHERN KANKAKEE...DUPAGE AND COOK COUNTIES... At 941 AM CDT, a line of severe thunderstorms extended from Aurora to Shorewood to Coal City, and was moving east at 45 to 50 mph. HAZARD...60 mph wind gusts. The strongest winds are expected in Will County with this storm. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Chicago, Aurora, Joliet, Naperville, Cicero, Evanston, Bolingbrook, Skokie, Orland Park, Tinley Park, Oak Lawn, Berwyn, Wheaton, Oak Park, Downers Grove, Elmhurst, Lombard, Ohare Airport, Carol Stream, Romeoville, Plainfield, Park Ridge, Calumet City, Addison, and Glendale Heights. PRECAUTIONARY/PREPAREDNESS ACTIONS... A tornado watch remains in effect for the warned area. Tornadoes can develop quickly from severe thunderstorms. Although a tornado is not immediately likely, if one is spotted act quickly and move to a place of safety inside a sturdy structure, such as a basement or small interior room. For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4120 8824 4190 8826 4204 8767 4190 8762 4190 8760 4183 8760 4172 8753 4116 8753 TIME...MOT...LOC 1441Z 265DEG 44KT 4158 8816 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Borchardt  164 WGUS53 KIND 121446 FFWIND INC065-122045- /O.NEW.KIND.FF.W.0047.260812T1446Z-260812T2045Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Indianapolis IN 1046 AM EDT Wed Aug 12 2026 ...FLASH FLOOD EMERGENCY FOR NEW CASTLE... The National Weather Service in Indianapolis has issued a * Flash Flood Warning for... Henry County in east central Indiana... * Until 445 PM EDT. * At 1046 AM EDT, emergency management reported thunderstorms producing heavy rain across the warned area. Between 5 and 8 inches of rain have fallen. The expected rainfall rate is 0.25 to 1.25 inches in 1 hour. Additional rainfall amounts up to 1 inch are possible in the warned area. Flash flooding is already occurring. This is a FLASH FLOOD EMERGENCY for New Castle. This is a PARTICULARLY DANGEROUS SITUATION. SEEK HIGHER GROUND NOW! HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Emergency management reported. IMPACT...This is a PARTICULARLY DANGEROUS SITUATION. SEEK HIGHER GROUND NOW! Life threatening flash flooding of low water crossings, small creeks and streams, urban areas, highways, streets and underpasses. * Some locations that will experience flash flooding include... New Castle, Knightstown, Spiceland, Shirley, Kennard, Sulphur Springs, Mooreland, Lewisville, Mount Summit, Straughn, Dunreith, Cadiz, Springport, Greensboro, Blountsville and Summit Lake State Park. Emergency management has reported that numerous roadways are flooded across the region and evacuations are occurring. Do not drive into flood waters. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to higher ground now! This is an extremely dangerous and life-threatening situation. Do not attempt to travel unless you are fleeing an area subject to flooding or under an evacuation order. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. && LAT...LON 4000 8521 4000 8520 3987 8520 3987 8522 3979 8522 3979 8560 3987 8560 3988 8558 4008 8558 4008 8521 FLASH FLOOD...OBSERVED FLASH FLOOD DAMAGE THREAT...CATASTROPHIC EXPECTED RAINFALL RATE...0.25-1.25 INCHES IN 1 HOUR $$ Eckhoff  929 WWUS53 KLOT 121449 SVSLOT Severe Weather Statement National Weather Service Chicago/Romeoville 949 AM CDT Wed Aug 12 2026 ILC063-089-093-121459- /O.CAN.KLOT.SV.W.0252.000000T0000Z-260812T1500Z/ Kendall IL-Grundy IL-Kane IL- 949 AM CDT Wed Aug 12 2026 ...THE SEVERE THUNDERSTORM WARNING FOR EASTERN KENDALL...NORTHEASTERN GRUNDY AND SOUTHEASTERN KANE COUNTIES IS CANCELLED... The storms which prompted the warning have moved out of the area. Therefore, the warning has been cancelled. A Severe Thunderstorm Watch remains in effect until 100 PM CDT for northeastern Illinois. To report severe weather, contact your nearest law enforcement agency. They will relay your report to the National Weather Service Chicago. && LAT...LON 4120 8825 4120 8847 4152 8845 4172 8846 4190 8848 4190 8826 TIME...MOT...LOC 1447Z 268DEG 37KT 4178 8833 4171 8821 4161 8812 4144 8816 4137 8823 $$ Borchardt  900 WWUS53 KLOT 121450 SVSLOT Severe Weather Statement National Weather Service Chicago/Romeoville 950 AM CDT Wed Aug 12 2026 ILC031-043-091-197-121545- /O.CON.KLOT.SV.W.0253.000000T0000Z-260812T1545Z/ Will IL-Kankakee IL-DuPage IL-Cook IL- 950 AM CDT Wed Aug 12 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 AM CDT FOR WILL...NORTHERN KANKAKEE...SOUTHERN DUPAGE AND COOK COUNTIES... At 949 AM CDT, a line of severe thunderstorms extended from Aurora to Lockport to Joliet to Wilmington, and was moving east at 50 mph. HAZARD...Localized wind gusts to 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Chicago, Aurora, Joliet, Naperville, Cicero, Bolingbrook, Orland Park, Tinley Park, Oak Lawn, Berwyn, Oak Park, Downers Grove, Elmhurst, Romeoville, Plainfield, Calumet City, Woodridge, Chicago Heights, West Town, Chicago Lawn, Englewood, Austin, South Shore, Roseland, and Midway Airport. PRECAUTIONARY/PREPAREDNESS ACTIONS... A tornado watch remains in effect for the warned area. Tornadoes can develop quickly from severe thunderstorms. Although a tornado is not immediately likely, if one is spotted act quickly and move to a place of safety inside a sturdy structure, such as a basement or small interior room. For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4172 8825 4200 8765 4191 8762 4183 8760 4172 8753 4116 8753 4120 8824 TIME...MOT...LOC 1449Z 265DEG 44KT 4159 8801 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Borchardt  748 WWUS53 KLOT 121455 SVSLOT Severe Weather Statement National Weather Service Chicago/Romeoville 955 AM CDT Wed Aug 12 2026 ILC031-043-121504- /O.CAN.KLOT.SV.W.0253.000000T0000Z-260812T1545Z/ DuPage IL-Cook IL- 955 AM CDT Wed Aug 12 2026 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN DUPAGE AND COOK COUNTIES IS CANCELLED... The severe thunderstorm which prompted the warning have weakened and no longer appear capable of wind damage. Therefore, the warning has been cancelled. A Severe Thunderstorm Watch remains in effect until 100 PM CDT for northeastern Illinois. && LAT...LON 4132 8824 4140 8753 4116 8753 4120 8824 TIME...MOT...LOC 1454Z 272DEG 40KT 4127 8801 $$ ILC091-197-121545- /O.CON.KLOT.SV.W.0253.000000T0000Z-260812T1545Z/ Will IL-Kankakee IL- 955 AM CDT Wed Aug 12 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 AM CDT FOR SOUTHERN WILL AND NORTHERN KANKAKEE COUNTIES... At 954 AM CDT, a severe thunderstorm was located near Lakewood Shores, or 7 miles east of Wilmington, moving east at 45 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Bourbonnais, Bradley, Manteno, Braidwood, Wilmington, Peotone, Momence, Beecher, Diamond, Lakewood Shores, Grant Park, Godley, Wilton Center, and Symerton. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4132 8824 4140 8753 4116 8753 4120 8824 TIME...MOT...LOC 1454Z 272DEG 40KT 4127 8801 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Borchardt