526 WWUS53 KILX 181601 SVSILX Severe Weather Statement National Weather Service Lincoln IL 1101 AM CDT Mon May 18 2026 ILC019-041-147-181611- /O.EXP.KILX.SV.W.0213.000000T0000Z-260518T1600Z/ Piatt-Champaign-Douglas- 1101 AM CDT Mon May 18 2026 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN PIATT... SOUTHWESTERN CHAMPAIGN AND WESTERN DOUGLAS COUNTIES HAS EXPIRED... 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 has been allowed to expire. However, small hail and gusty winds are still possible with these thunderstorms. A Severe Thunderstorm Watch remains in effect until 500 PM CDT for central and east central Illinois. && LAT...LON 3972 8829 3967 8847 3979 8847 4013 8856 4025 8828 4005 8827 TIME...MOT...LOC 1601Z 243DEG 41KT 4025 8825 4002 8823 3980 8825 $$ Barnes  935 WUUS53 KLOT 181602 SVRLOT ILC031-INC089-181630- /O.NEW.KLOT.SV.W.0111.260518T1602Z-260518T1630Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Chicago/Romeoville 1102 AM CDT Mon May 18 2026 The National Weather Service in Chicago has issued a * Severe Thunderstorm Warning for... Southeastern Cook County in northeastern Illinois... Northern Lake County in northwestern Indiana... * Until 1130 AM CDT. * At 1102 AM CDT, severe thunderstorms were located along a line extending from Stickney to Dolton, moving northeast at 50 mph. HAZARD...70 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. * Locations impacted include... Chicago, Cicero, Hammond, Gary, Oak Lawn, Berwyn, Oak Park, Calumet City, West Town, Chicago Lawn, Englewood, Austin, South Shore, Roseland, Lincoln Park, Bridgeport, Chicago Loop, South Lawndale, Lake View, Midway Airport, Irving Park, East Chicago, Schererville, Burbank, and Lansing. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4147 8755 4184 8783 4201 8766 4196 8763 4196 8764 4190 8762 4190 8760 4188 8762 4183 8760 4175 8753 4171 8753 4167 8747 4168 8743 4164 8742 4162 8729 4162 8722 TIME...MOT...LOC 1602Z 223DEG 42KT 4183 8776 4164 8760 THUNDERSTORM DAMAGE THREAT...CONSIDERABLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...70 MPH $$ Kluber  327 WHUS53 KIWX 181606 SMWIWX LMZ043-046-080-181730- /O.NEW.KIWX.MA.W.0020.260518T1606Z-260518T1730Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Northern Indiana 1206 PM EDT Mon May 18 2026 The National Weather Service in Northern Indiana has issued a * Special Marine Warning for... Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to mid-line of lake.... Michigan City IN to New Buffalo MI... New Buffalo MI to St Joseph MI... * Until 130 PM EDT. * At 1206 PM EDT, strong thunderstorms were located along a line extending from near Midway Airport to 10 nm southwest of Gary, moving northeast at 55 knots. HAZARD...Wind gusts to nearly 50 knots. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... New Buffalo and Michigan City. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. Frequent lightning is occurring with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && LAT...LON 4179 8696 4179 8697 4212 8696 4213 8657 4211 8649 4194 8658 4189 8662 4180 8675 4179 8676 4172 8691 TIME...MOT...LOC 1606Z 236DEG 56KT 4187 8774 4149 8752 HAIL...0.00IN WIND...49KTS $$ Brown  764 WWUS53 KLOT 181607 SVSLOT Severe Weather Statement National Weather Service Chicago/Romeoville 1107 AM CDT Mon May 18 2026 ILC031-INC089-181630- /O.CON.KLOT.SV.W.0111.000000T0000Z-260518T1630Z/ Cook IL-Lake IN- 1107 AM CDT Mon May 18 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 AM CDT FOR EAST CENTRAL COOK AND NORTHERN LAKE COUNTIES... At 1106 AM CDT, severe thunderstorms were located along a line extending from East Garfield Park to South Deering, moving northeast at 50 mph. HAZARD...70 mph wind gusts. SOURCE...Automated Airport Observation. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. Locations impacted include... Chicago, Cicero, Hammond, Gary, Calumet City, West Town, Englewood, Bridgeport, Chicago Loop, South Lawndale, South Shore, Roseland, Lake View, Lincoln Park, Chicago Lawn, Austin, Irving Park, East Chicago, Schererville, Lansing, Highland, Munster, Dolton, Navy Pier, and Near North Side. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4148 8754 4169 8762 4187 8777 4201 8766 4196 8763 4196 8764 4190 8762 4190 8760 4188 8762 4183 8760 4175 8753 4171 8753 4167 8747 4168 8743 4164 8742 4162 8729 4162 8722 TIME...MOT...LOC 1606Z 223DEG 42KT 4186 8772 4167 8756 THUNDERSTORM DAMAGE THREAT...CONSIDERABLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...OBSERVED MAX WIND GUST...70 MPH $$ Kluber  318 FZUS73 KLOT 181611 MWSLOT Marine Weather Statement National Weather Service Chicago/Romeoville 1111 AM CDT Mon May 18 2026 LMZ740>745-777-779-181715- /O.CON.KLOT.MA.W.0032.000000T0000Z-260518T1715Z/ 1111 AM CDT Mon May 18 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 1215 PM CDT... For the following areas... Nearshore Waters from Winthrop Harbor to Calumet Harbor... Nearshore Waters from Calumet Harbor to Michigan City... Open Waters from Winthrop Harbor to Michigan City out to Mid Lake... At 1110 AM CDT, severe thunderstorms were located along a line extending from near Ohare Airport to 31st Street Harbor to near Gary, moving northeast at 40 knots. HAZARD...Wind gusts in excess of 50 knots. SOURCE...Radar indicated. IMPACT...Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. Locations impacted include... Harrison-Dever Crib, Wilmette Harbor, 31st Street Harbor, Monroe Harbor, Burns Harbor, Calumet Harbor, Winthrop Harbor, Indiana Harbor, Montrose Harbor, Waukegan Harbor, Burnham Harbor, and Hammond Marina. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. && LAT...LON 4162 8733 4164 8743 4168 8743 4167 8747 4170 8751 4183 8760 4189 8762 4189 8760 4190 8762 4206 8767 4227 8783 4248 8780 4246 8702 4213 8696 4179 8697 4179 8696 4172 8691 4163 8716 4162 8732 4161 8732 TIME...MOT...LOC 1610Z 220DEG 41KT 4206 8788 4183 8760 4162 8738 HAIL...0.00IN WIND...50KTS $$ Birk  195 WWUS53 KILX 181612 SVSILX Severe Weather Statement National Weather Service Lincoln IL 1112 AM CDT Mon May 18 2026 ILC025-049-079-181622- /O.EXP.KILX.SV.W.0214.000000T0000Z-260518T1615Z/ Jasper-Clay-Effingham- 1112 AM CDT Mon May 18 2026 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN JASPER...NORTHERN CLAY AND EFFINGHAM COUNTIES WILL EXPIRE AT 1115 AM CDT... The storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. Therefore, the warning will be allowed to expire. However, small hail, gusty winds and heavy rain are still possible with this thunderstorm. A Severe Thunderstorm Watch remains in effect until 500 PM CDT for south central and southeastern Illinois. && LAT...LON 3891 8870 3891 8880 3894 8881 3918 8862 3888 8824 3862 8870 TIME...MOT...LOC 1612Z 227DEG 31KT 3899 8847 $$ Barnes  236 WUUS53 KLOT 181619 SVRLOT INC007-073-089-111-127-181715- /O.NEW.KLOT.SV.W.0112.260518T1619Z-260518T1715Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Chicago/Romeoville 1119 AM CDT Mon May 18 2026 The National Weather Service in Chicago has issued a * Severe Thunderstorm Warning for... Newton County in northwestern Indiana... Benton County in northwestern Indiana... Porter County in northwestern Indiana... Lake County in northwestern Indiana... Jasper County in northwestern Indiana... * Until 1215 PM CDT/115 PM EDT/. * At 1118 AM CDT/1218 PM EDT/, severe thunderstorms were located along a line extending from near Monee to near St. Anne to near Hoopeston, moving northeast at 50 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Hammond, Gary, Portage, Merrillville, Valparaiso, Schererville, Hobart, Crown Point, Highland, Munster, Chesterton, Cedar Lake, Lowell, Rensselaer, DeMotte, Hebron, Fowler, Kentland, Otterbein, Remington, Morocco, Wheatfield, Lake Village, Griffith, and Dyer. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4091 8699 4084 8699 4084 8710 4048 8709 4048 8731 4074 8753 4156 8752 4164 8739 4163 8720 4171 8693 4091 8693 TIME...MOT...LOC 1618Z 244DEG 41KT 4140 8779 4098 8773 4050 8761 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...0.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Kluber  197 WWUS53 KLOT 181620 SVSLOT Severe Weather Statement National Weather Service Chicago/Romeoville 1120 AM CDT Mon May 18 2026 ILC031-INC089-181629- /O.CAN.KLOT.SV.W.0111.000000T0000Z-260518T1630Z/ Cook IL-Lake IN- 1120 AM CDT Mon May 18 2026 ...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL COOK AND NORTHERN LAKE COUNTIES IS CANCELLED... The storms which prompted the warning have moved out of the area. Therefore, the warning has been cancelled. A Severe Thunderstorm Watch remains in effect until 500 PM CDT for northeastern Illinois...and northwestern Indiana. && LAT...LON 4148 8754 4169 8762 4187 8777 4201 8766 4196 8763 4196 8764 4190 8762 4190 8760 4188 8762 4183 8760 4175 8753 4171 8753 4167 8747 4168 8743 4164 8742 4162 8729 4162 8722 TIME...MOT...LOC 1618Z 223DEG 42KT 4196 8759 4177 8743 $$ Kluber  728 FZUS73 KLOT 181620 MWSLOT Marine Weather Statement National Weather Service Chicago/Romeoville 1120 AM CDT Mon May 18 2026 LMZ740>745-777-779-181715- /O.CON.KLOT.MA.W.0032.000000T0000Z-260518T1715Z/ 1120 AM CDT Mon May 18 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 1215 PM CDT... For the following areas... Nearshore Waters from Winthrop Harbor to Calumet Harbor... Nearshore Waters from Calumet Harbor to Michigan City... Open Waters from Winthrop Harbor to Michigan City out to Mid Lake... At 1120 AM CDT, severe thunderstorms capable of producing waterspouts were located along a line extending from near Wilmette Harbor to 8 nm northeast of Calumet Harbor to near Marina Shores at Dune Harbor, moving northeast at 55 knots. HAZARD...Waterspouts and wind gusts in excess of 50 knots. SOURCE...Radar indicated. IMPACT...Waterspouts can easily overturn boats and create locally hazardous seas. Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. Locations impacted include... Harrison-Dever Crib, Wilmette Harbor, 31st Street Harbor, Monroe Harbor, Burns Harbor, Calumet Harbor, Winthrop Harbor, Indiana Harbor, Montrose Harbor, Waukegan Harbor, Burnham Harbor, and Hammond Marina. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. Thunderstorms can produce sudden waterspouts. Waterspouts can easily overturn boats and create locally hazardous seas. Seek safe harbor immediately. && LAT...LON 4162 8733 4164 8743 4168 8743 4167 8747 4170 8751 4183 8760 4189 8762 4189 8760 4190 8762 4206 8767 4227 8783 4248 8780 4246 8702 4213 8696 4179 8697 4179 8696 4172 8691 4163 8716 4162 8732 4161 8732 TIME...MOT...LOC 1620Z 231DEG 54KT 4215 8775 4184 8738 4171 8725 WATERSPOUT...POSSIBLE HAIL...0.00IN WIND...50KTS $$ Birk  996 WHUS53 KAPX 181622 SMWAPX LMZ346-366-181715- /O.NEW.KAPX.MA.W.0015.260518T1622Z-260518T1715Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Gaylord MI 1222 PM EDT Mon May 18 2026 The National Weather Service in Gaylord has issued a * Special Marine Warning for... Lake Michigan from Point Betsie to Manistee MI 5NM offshore to Mid Lake... Manistee to Point Betsie MI... * Until 115 PM EDT. * At 1222 PM EDT, strong thunderstorms were located 11 nm west of Arcadia, or 12 nm northwest of Portage Lake, moving northeast at 40 knots. HAZARD...Wind gusts to 40 knots. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Arcadia, Point Betsie, Pierport, Portage Lake, Williamsport, Manistee, and Frankfort. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4473 8676 4470 8637 4470 8612 4467 8619 4456 8616 4441 8619 4422 8630 4422 8635 4426 8634 4428 8642 4422 8697 TIME...MOT...LOC 1622Z 231DEG 40KT 4448 8651 HAIL...0.00IN WIND...40KTS $$ ELD  333 FZUS73 KIWX 181627 MWSIWX Marine Weather Statement National Weather Service Northern Indiana 1227 PM EDT Mon May 18 2026 LMZ043-046-080-181730- /O.CON.KIWX.MA.W.0020.000000T0000Z-260518T1730Z/ 1227 PM EDT Mon May 18 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 130 PM EDT... For the following areas... Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to mid-line of lake.... Michigan City IN to New Buffalo MI... New Buffalo MI to St Joseph MI... At 1226 PM EDT, severe thunderstorms were located along a line extending from 10 nm northeast of Harrison-Dever Crib to Burns Harbor, moving northeast at 55 knots. HAZARD...Wind gusts in excess of 50 knots. SOURCE...Radar indicated. Gary International Airport recorded a 50 knot wind gust. IMPACT...Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. Locations impacted include... New Buffalo and Michigan City. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. Frequent lightning is occurring with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && LAT...LON 4179 8696 4179 8697 4212 8696 4213 8657 4211 8649 4194 8658 4189 8662 4180 8675 4179 8676 4172 8691 TIME...MOT...LOC 1626Z 236DEG 56KT 4204 8740 4166 8718 HAIL...0.00IN WIND...50KTS $$ Brown  987 WHUS53 KGRR 181630 SMWGRR LMZ844>846-874-876-878-181830- /O.NEW.KGRR.MA.W.0027.260518T1630Z-260518T1830Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Grand Rapids MI 1230 PM EDT Mon May 18 2026 The National Weather Service in Grand Rapids has issued a * Special Marine Warning for... Nearshore and Open Waters from St Joseph to Grand Haven MI... * Until 230 PM EDT. * At 1230 PM EDT, severe thunderstorms were located over Lake Michigan along a line extending from near Evanston Illinois to near Ogden Dunes Indiana, moving northeast at 45 knots. HAZARD...Wind gusts in excess of 50 knots. SOURCE...Radar. IMPACT...Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. * Locations impacted include... St. Joseph Light, South Haven Light, Saugatuck Pier Heads, Holland Light, Port Sheldon Harbor, and Grand Haven Light. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. && LAT...LON 4213 8656 4212 8696 4279 8706 4306 8670 4306 8625 4294 8622 4269 8621 4245 8626 4225 8635 4211 8649 TIME...MOT...LOC 1629Z 225DEG 43KT 4212 8753 4173 8716 HAIL...0.00IN WIND...50KTS $$ CAS  172 WWUS53 KLOT 181636 SVSLOT Severe Weather Statement National Weather Service Chicago/Romeoville 1136 AM CDT Mon May 18 2026 INC089-111-181646- /O.CAN.KLOT.SV.W.0112.000000T0000Z-260518T1715Z/ Newton IN-Lake IN- 1136 AM CDT Mon May 18 2026 ...THE SEVERE THUNDERSTORM WARNING FOR NEWTON AND LAKE COUNTIES IS CANCELLED... The storms which prompted the warning have moved out of the warned area. Therefore, the warning has been cancelled. A Severe Thunderstorm Watch remains in effect until 500 PM CDT/600 PM EDT/ for northwestern Indiana. && LAT...LON 4091 8699 4084 8699 4084 8710 4048 8710 4048 8731 4074 8726 4122 8728 4124 8722 4162 8722 4171 8693 4091 8693 TIME...MOT...LOC 1636Z 238DEG 44KT 4167 8717 4125 8711 4062 8722 $$ INC007-073-127-181715- /O.CON.KLOT.SV.W.0112.000000T0000Z-260518T1715Z/ Benton IN-Porter IN-Jasper IN- 1136 AM CDT Mon May 18 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 PM CDT/115 PM EDT/ FOR EASTERN BENTON...PORTER AND JASPER COUNTIES... At 1136 AM CDT/1236 PM EDT/, severe thunderstorms were located along a line extending from near Ogden Dunes to near Wheatfield to near Fowler, moving northeast at 50 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Public. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Portage, Valparaiso, Chesterton, Rensselaer, DeMotte, Hebron, Otterbein, Remington, Wheatfield, Lakes of the Four Seasons, South Haven, Porter, Roselawn, Kouts, Oxford, Burns Harbor, Ogden Dunes, Town of Pines, Beverly Shores, Hanging Grove, Wheeler, Collegeville, Dune Acres, Stoutsburg, and Fair Oaks. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4091 8699 4084 8699 4084 8710 4048 8710 4048 8731 4074 8726 4122 8728 4124 8722 4162 8722 4171 8693 4091 8693 TIME...MOT...LOC 1636Z 238DEG 44KT 4167 8717 4125 8711 4062 8722 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...0.75 IN WIND THREAT...OBSERVED MAX WIND GUST...60 MPH $$ Kluber  172 WUUS53 KIWX 181637 SVRIWX INC091-MIC021-181730- /O.NEW.KIWX.SV.W.0134.260518T1637Z-260518T1730Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Northern Indiana 1237 PM EDT Mon May 18 2026 The National Weather Service in Northern Indiana has issued a * Severe Thunderstorm Warning for... La Porte County in northwestern Indiana... Southwestern Berrien County in southwestern Michigan... * Until 130 PM EDT/1230 PM CDT/. * At 1237 PM EDT/1137 AM CDT/, severe thunderstorms were located along a line extending from 7 miles northwest of Beverly Shores to near Valparaiso to near Wheatfield, moving northeast at 45 mph. HAZARD...70 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. * Locations impacted include... Michigan City, La Porte, St. Joseph, Westville, Trail Creek, Bridgman, New Buffalo, Three Oaks, Kingsford Heights, Long Beach, Stevensville, Wanatah, La Crosse, Pottawattamie Park, Shorewood-Tower Hill, Shorewood-Tower Hills-Harbert, Hanna, Baroda, Shoreham, and Galien. This includes the following highways... Interstate 80 in Indiana between mile markers 38 and 61. Interstate 94 in Indiana between mile markers 33 and 45. Interstate 94 in Michigan between mile markers 0 and 25. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4193 8646 4176 8647 4176 8652 4165 8653 4165 8649 4157 8649 4152 8650 4151 8653 4143 8652 4143 8664 4140 8670 4132 8674 4128 8679 4124 8693 4171 8693 4182 8672 4190 8662 4211 8649 TIME...MOT...LOC 1637Z 215DEG 39KT 4178 8706 4151 8699 4119 8700 THUNDERSTORM DAMAGE THREAT...CONSIDERABLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...70 MPH $$ Norman  451 WHUS53 KMKX 181642 SMWMKX LMZ646-675-181815- /O.NEW.KMKX.MA.W.0030.260518T1642Z-260518T1815Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Milwaukee/Sullivan WI 1142 AM CDT Mon May 18 2026 The National Weather Service in Milwaukee/Sullivan has issued a * Special Marine Warning for... Lake Michigan nearshore and open waters to mid lake Wind Point WI TO Winthrop Harbor IL... * Until 115 PM CDT. * At 1141 AM CDT, strong thunderstorms were located along a line extending from Waukegan Harbor, to 15 nm southeast of Winthrop Harbor, to 21 nm northeast of Harrison-Dever Crib, to near Michigan City, moving northeast at 35 knots. HAZARD...Wind gusts to 40 knots. SOURCE...Airport and marine observations. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Strong thunderstorms will remain over mainly open waters. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. && LAT...LON 4249 8780 4259 8782 4279 8748 4278 8706 4246 8702 TIME...MOT...LOC 1641Z 224DEG 37KT 4238 8781 4234 8750 4210 8715 4175 8695 HAIL...0.00IN WIND...40KTS $$ WOOD  767 WUUS53 KIWX 181643 SVRIWX INC131-149-181-181730- /O.NEW.KIWX.SV.W.0135.260518T1643Z-260518T1730Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Northern Indiana 1243 PM EDT Mon May 18 2026 The National Weather Service in Northern Indiana has issued a * Severe Thunderstorm Warning for... White County in northwestern Indiana... Pulaski County in northwestern Indiana... Starke County in northwestern Indiana... * Until 130 PM EDT/1230 PM CDT/. * At 1243 PM EDT/1143 AM CDT/, a severe thunderstorm was located over Francesville, or 12 miles east of Rensselaer, moving east at 45 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Monticello, Knox, Winamac, Monon, North Judson, Wolcott, Francesville, Hamlet, Medaryville, Koontz Lake, Pulaski, Oak Grove, Ripley, Reynolds, Burnettsville, Monterey, Beardstown, Ober, English Lake, and Denham. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Large hail, damaging wind, and continuous cloud to ground lightning are occurring with this storm. Move indoors immediately. Lightning is one of nature's leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning. && LAT...LON 4084 8710 4084 8699 4091 8699 4091 8693 4124 8693 4128 8679 4132 8674 4140 8670 4143 8664 4143 8647 4091 8647 4091 8658 4074 8658 4074 8675 4071 8676 4074 8710 TIME...MOT...LOC 1643Z 263DEG 41KT 4099 8691 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Brown  830 FZUS73 KLOT 181650 MWSLOT Marine Weather Statement National Weather Service Chicago/Romeoville 1150 AM CDT Mon May 18 2026 LMZ740>744-181659- /O.CAN.KLOT.MA.W.0032.000000T0000Z-260518T1715Z/ 1150 AM CDT Mon May 18 2026 ...THE SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... Nearshore Waters from Winthrop Harbor to Calumet Harbor... Nearshore Waters from Calumet Harbor to Burns Harbor... The thunderstorms have moved out of the warned area and no longer pose a significant threat to boaters. A Severe Thunderstorm Watch remains in effect until 500 PM CDT for the adjacent waters of Lake Michigan. && LAT...LON 4196 8725 4223 8755 4248 8767 4246 8702 4213 8696 4179 8697 4179 8696 4172 8691 4165 8711 TIME...MOT...LOC 1649Z 230DEG 42KT 4234 8737 4201 8695 4176 8688 $$ LMZ745-777-779-181715- /O.CON.KLOT.MA.W.0032.000000T0000Z-260518T1715Z/ 1150 AM CDT Mon May 18 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 1215 PM CDT... For the following areas... Nearshore Waters from Burns Harbor to Michigan City... Open Waters from Winthrop Harbor to Michigan City out to Mid Lake... At 1149 AM CDT, severe thunderstorms were located along a line extending from 20 nm east of Waukegan Harbor to 16 nm northwest of New Buffalo to near Michigan City, moving northeast at 40 knots. HAZARD...Wind gusts in excess of 50 knots. SOURCE...Radar indicated. IMPACT...Boats could suffer significant structural damage in high winds. Small craft could capsize in suddenly higher waves. Severe thunderstorms will remain over mainly open waters. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. && LAT...LON 4196 8725 4223 8755 4248 8767 4246 8702 4213 8696 4179 8697 4179 8696 4172 8691 4165 8711 TIME...MOT...LOC 1649Z 230DEG 42KT 4234 8737 4201 8695 4176 8688 HAIL...0.00IN WIND...50KTS $$ Birk  886 WGUS53 KSGF 181654 FFWSGF MOC015-085-185-182045- /O.NEW.KSGF.FF.W.0025.260518T1654Z-260518T2045Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Springfield MO 1154 AM CDT Mon May 18 2026 The National Weather Service in Springfield has issued a * Flash Flood Warning for... Southwestern Benton County in central Missouri... Western Hickory County in central Missouri... Eastern St. Clair County in west central Missouri... * Until 345 PM CDT. * At 1154 AM CDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 2 and 4.5 inches of rain have fallen. Additional rainfall amounts up to 1 inch are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar and automated gauges. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Warsaw, Hermitage, Weaubleau, Wheatland, Cross Timbers, Collins, Vista, Gerster, Quincy, Harper, Iconium, Whitakerville, Fristoe, Elkton, Racket, Palo Pinto, Truman Lake, Pomme de Terre Lake and Truman State Park. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Many flood deaths occur in vehicles. && LAT...LON 3783 9378 3820 9361 3820 9356 3822 9356 3821 9352 3842 9351 3826 9325 3805 9313 3789 9333 3781 9353 3781 9357 3783 9358 FLASH FLOOD...RADAR AND GAUGE INDICATED $$ JD  654 WUUS53 KSGF 181656 SVRSGF MOC059-167-181745- /O.NEW.KSGF.SV.W.0218.260518T1656Z-260518T1745Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Springfield MO 1156 AM CDT Mon May 18 2026 The National Weather Service in Springfield has issued a * Severe Thunderstorm Warning for... Central Dallas County in southwestern Missouri... Southeastern Polk County in southwestern Missouri... * Until 1245 PM CDT. * At 1155 AM CDT, a severe thunderstorm was located near Bolivar, moving northeast at 35 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Bolivar, Buffalo, Polk, Morrisville, Halfway, Louisburg, Windyville, Foose, Goodson, and Pumpkin Center. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3769 9287 3749 9322 3743 9347 3754 9354 3781 9331 3781 9318 TIME...MOT...LOC 1655Z 226DEG 30KT 3755 9340 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Wise  678 WUUS53 KIND 181656 SVRIND INC021-121-165-167-181745- /O.NEW.KIND.SV.W.0154.260518T1656Z-260518T1745Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Indianapolis IN 1256 PM EDT Mon May 18 2026 The National Weather Service in Indianapolis has issued a * Severe Thunderstorm Warning for... Northern Vigo County in west central Indiana... Northwestern Clay County in west central Indiana... Parke County in west central Indiana... Vermillion County in west central Indiana... * Until 145 PM EDT. * At 1255 PM EDT, severe thunderstorms were located along a line extending from Chrisman to 7 miles west of Terre Haute, moving east at 40 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Terre Haute, Brazil, Clinton, Rockville, Newport, West Terre Haute, Fairview Park, Seelyville, Montezuma, Knightsville, Rosedale, Harmony, Dana, Staunton, Carbon, Universal, Mecca, Bloomingdale, Marshall, and Bridgeton. This includes Interstate 70 between mile markers 1 and 9. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3989 8753 3995 8734 3995 8721 3952 8702 3939 8753 TIME...MOT...LOC 1655Z 249DEG 33KT 3982 8765 3943 8751 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Updike  994 WWUS53 KIWX 181658 SVSIWX Severe Weather Statement National Weather Service Northern Indiana 1258 PM EDT Mon May 18 2026 INC131-149-181-181730- /O.CON.KIWX.SV.W.0135.000000T0000Z-260518T1730Z/ White IN-Pulaski IN-Starke IN- 1258 PM EDT Mon May 18 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 PM EDT/1230 PM CDT/ FOR WHITE...PULASKI AND STARKE COUNTIES... At 1257 PM EDT/1157 AM CDT/, a severe thunderstorm was located near Winamac, moving east at 45 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Monticello, Knox, Winamac, Monon, North Judson, Wolcott, Francesville, Hamlet, Medaryville, Koontz Lake, Pulaski, Oak Grove, Ripley, Reynolds, Burnettsville, Monterey, Beardstown, Ober, English Lake, and Denham. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Continuous cloud to ground lightning is occurring with this storm. Move indoors immediately. Lightning is one of nature's leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning. && LAT...LON 4084 8710 4084 8699 4091 8699 4091 8693 4124 8693 4128 8679 4132 8674 4140 8670 4143 8664 4143 8647 4091 8647 4091 8658 4074 8658 4074 8675 4071 8676 4074 8710 TIME...MOT...LOC 1657Z 263DEG 41KT 4101 8669 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Brown  603 WWUS53 KLOT 181659 SVSLOT Severe Weather Statement National Weather Service Chicago/Romeoville 1159 AM CDT Mon May 18 2026 INC127-181708- /O.CAN.KLOT.SV.W.0112.000000T0000Z-260518T1715Z/ Porter IN- 1159 AM CDT Mon May 18 2026 ...THE SEVERE THUNDERSTORM WARNING FOR PORTER COUNTY IS CANCELLED... The storms which prompted the warning have moved out of the warned area. Therefore, the warning has been cancelled. A Severe Thunderstorm Watch remains in effect until 500 PM CDT/600 PM EDT/ for northwestern Indiana. && LAT...LON 4091 8699 4084 8699 4084 8710 4048 8710 4048 8724 4093 8711 4123 8698 4122 8697 4124 8693 4091 8693 TIME...MOT...LOC 1658Z 270DEG 24KT 4123 8694 4054 8717 $$ INC007-073-181715- /O.CON.KLOT.SV.W.0112.000000T0000Z-260518T1715Z/ Benton IN-Jasper IN- 1159 AM CDT Mon May 18 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 PM CDT/115 PM EDT/ FOR EASTERN BENTON AND EASTERN JASPER COUNTIES... At 1158 AM CDT/1258 PM EDT/, severe thunderstorms were located along a line extending from 6 miles east of Wheatfield to near Oxford, moving east at 25 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Automated weather observations. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Otterbein, Remington, Hanging Grove, Baileys Corner, Templeton, and Dunns Bridge. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4091 8699 4084 8699 4084 8710 4048 8710 4048 8724 4093 8711 4123 8698 4122 8697 4124 8693 4091 8693 TIME...MOT...LOC 1658Z 270DEG 24KT 4123 8694 4054 8717 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...0.75 IN WIND THREAT...OBSERVED MAX WIND GUST...60 MPH $$ Kluber