587 FZUS73 KAPX 190200 MWSAPX Marine Weather Statement National Weather Service Gaylord MI 1000 PM EDT Tue Aug 18 2026 LMZ346-366-190300- /O.CON.KAPX.MA.W.0100.000000T0000Z-260819T0300Z/ 1000 PM EDT Tue Aug 18 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 1100 PM EDT... For the following areas... Lake Michigan from Point Betsie to Manistee MI 5NM offshore to Mid Lake... Manistee to Point Betsie MI... At 1000 PM EDT, a strong thunderstorm was located 8 nm west of Manistee Light, moving east at 35 knots. HAZARD...Wind gusts 34 knots or greater and small hail. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Locations impacted include... Portage Lake, Williamsport, Manistee, and Manistee Light. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4423 8635 4426 8634 4428 8642 4425 8667 4429 8679 4430 8679 4447 8664 4439 8621 4437 8621 4422 8630 TIME...MOT...LOC 0200Z 289DEG 34KT 4430 8652 HAIL...<.75IN WIND...>34KTS $$ JZ  844 WWUS53 KUNR 190200 SVSUNR Severe Weather Statement National Weather Service Rapid City SD 800 PM MDT Tue Aug 18 2026 SDC093-190210- /O.CAN.KUNR.SV.W.0307.000000T0000Z-260819T0215Z/ Meade SD- 800 PM MDT Tue Aug 18 2026 ...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR SOUTHERN MEADE COUNTY... The storm which prompted the warning has moved out of the area. Therefore, the warning has been cancelled. However, gusty winds are still possible with this thunderstorm. && LAT...LON 4408 10340 4413 10333 4407 10314 4399 10320 TIME...MOT...LOC 0150Z 305DEG 22KT 4411 10336 $$ SDC103-190215- /O.CON.KUNR.SV.W.0307.000000T0000Z-260819T0215Z/ Pennington SD- 800 PM MDT Tue Aug 18 2026 ...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM MDT FOR WESTERN PENNINGTON COUNTY... At 800 PM MDT, a severe thunderstorm was located over Rapid City, moving southeast at 25 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Trained spotters reported. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Rapid City and southwestern Rapid Valley. This includes Interstate 90 in South Dakota near Mile Marker 56. PRECAUTIONARY/PREPAREDNESS ACTIONS... Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and has produced large hail. This storm has a history or producing large damaging hail. && LAT...LON 4408 10340 4413 10333 4407 10314 4399 10320 TIME...MOT...LOC 0150Z 305DEG 22KT 4411 10336 HAIL THREAT...OBSERVED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Dye  776 WUUS53 KUNR 190205 SVRUNR SDC033-103-190245- /O.NEW.KUNR.SV.W.0308.260819T0205Z-260819T0245Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Rapid City SD 805 PM MDT Tue Aug 18 2026 The National Weather Service in Rapid City has issued a * Severe Thunderstorm Warning for... North Central Custer County in southwestern South Dakota... South Central Pennington County in west central South Dakota... * Until 845 PM MDT. * At 805 PM MDT, a severe thunderstorm was located over Hart Ranch, or near Rapid City, moving southeast at 25 mph. HAZARD...Ping pong ball size hail and 60 mph wind gusts. SOURCE...Trained spotters reported. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Rapid City, southwestern Rapid Valley, Caputa, Farmingdale, Black Gap, Rapid City Airport, Thompson Butte, Hart Ranch, Reptile Gardens and Bear Country. This includes Interstate 90 in South Dakota between Mile Markers 56 and 57. PRECAUTIONARY/PREPAREDNESS ACTIONS... Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and has produced large hail. && LAT...LON 4404 10336 4412 10328 4394 10280 4374 10309 TIME...MOT...LOC 0205Z 305DEG 22KT 4401 10323 HAIL THREAT...OBSERVED MAX HAIL SIZE...1.50 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Dye  765 WWUS53 KUNR 190206 SVSUNR Severe Weather Statement National Weather Service Rapid City SD 806 PM MDT Tue Aug 18 2026 SDC103-190216- /O.CAN.KUNR.SV.W.0307.000000T0000Z-260819T0215Z/ Pennington SD- 806 PM MDT Tue Aug 18 2026 ...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR WESTERN PENNINGTON COUNTY... The Severe Thunderstorm Warning that was previously in effect has been reissued for Pennington County and is in effect until 845 PM MDT. Please refer to that bulletin for the latest severe weather information. && LAT...LON 4408 10340 4413 10333 4407 10314 4399 10320 TIME...MOT...LOC 0200Z 305DEG 22KT 4407 10329 $$ Dye  182 WWUS53 KTOP 190206 SVSTOP Severe Weather Statement National Weather Service Topeka KS 906 PM CDT Tue Aug 18 2026 KSC027-190216- /O.CAN.KTOP.SV.W.0369.000000T0000Z-260819T0215Z/ Clay- 906 PM CDT Tue Aug 18 2026 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CLAY COUNTY IS CANCELLED... The severe thunderstorm which prompted the warning has moved out of the warned area. Therefore, the warning has been cancelled. && LAT...LON 3913 9703 3913 9696 3916 9696 3918 9685 3903 9686 3907 9706 TIME...MOT...LOC 0206Z 276DEG 23KT 3912 9701 $$ KSC041-061-190215- /O.CON.KTOP.SV.W.0369.000000T0000Z-260819T0215Z/ Dickinson-Geary- 906 PM CDT Tue Aug 18 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT FOR NORTHEASTERN DICKINSON AND NORTHWESTERN GEARY COUNTIES... At 906 PM CDT, a severe thunderstorm was located 4 miles west of Milford Lake, moving east at 25 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... Junction City and Milford Lake. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3913 9703 3913 9696 3916 9696 3918 9685 3903 9686 3907 9706 TIME...MOT...LOC 0206Z 276DEG 23KT 3912 9701 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Jones  662 FZUS73 KIWX 190207 MWSIWX Marine Weather Statement National Weather Service Northern Indiana 1007 PM EDT Tue Aug 18 2026 LMZ043-046-080-190400- 1007 PM EDT Tue Aug 18 2026 ...STRONG THUNDERSTORMS APPROACHING THE WATERS... The areas affected include... Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to mid-line of lake.... Michigan City IN to New Buffalo MI... New Buffalo MI to St Joseph MI... At 1007 PM EDT, Doppler radar indicated strong thunderstorms, capable of producing winds to around 30 knots. These thunderstorms were located along a line extending from near Grand Haven Light to 9 nm west of Saugatuck Pier Heads to 23 nm west of South Haven Light to 9 nm southeast of Waukegan Harbor, moving southeast at 25 knots. Locations impacted include... New Buffalo, Michigan City, and St. Joseph PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners can expect gusty winds to around 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until these storms pass. && LAT...LON 4179 8696 4179 8697 4212 8696 4213 8657 4211 8649 4194 8658 4189 8662 4180 8675 4179 8676 4172 8691 $$ MARSILI  966 WUUS53 KTOP 190214 SVRTOP KSC061-161-190300- /O.NEW.KTOP.SV.W.0370.260819T0214Z-260819T0300Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Topeka KS 914 PM CDT Tue Aug 18 2026 The National Weather Service in Topeka has issued a * Severe Thunderstorm Warning for... Central Geary County in east central Kansas... Southern Riley County in northeastern Kansas... * Until 1000 PM CDT. * At 914 PM CDT, a severe thunderstorm was located near Milford Lake, moving east at 30 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... Southwestern Manhattan, Junction City, Ogden, Grandview Plaza, and Milford Lake. This includes Interstate 70 between mile markers 298 and 315. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3913 9696 3917 9694 3916 9648 3893 9654 3905 9696 TIME...MOT...LOC 0214Z 283DEG 27KT 3911 9693 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Jones  235 WWUS53 KTOP 190216 SVSTOP Severe Weather Statement National Weather Service Topeka KS 916 PM CDT Tue Aug 18 2026 KSC061-161-190300- /O.CON.KTOP.SV.W.0370.000000T0000Z-260819T0300Z/ Geary-Riley- 916 PM CDT Tue Aug 18 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR CENTRAL GEARY AND SOUTHERN RILEY COUNTIES... At 915 PM CDT, a severe thunderstorm was located near Milford Lake, moving east at 30 mph. HAZARD...Golf ball size hail and 60 mph wind gusts. SOURCE...Public. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. Locations impacted include... Southwestern Manhattan, Junction City, Ogden, Grandview Plaza, and Milford Lake. This includes Interstate 70 between mile markers 298 and 315. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3913 9696 3917 9694 3916 9648 3893 9654 3905 9696 TIME...MOT...LOC 0215Z 283DEG 27KT 3911 9691 THUNDERSTORM DAMAGE THREAT...CONSIDERABLE HAIL THREAT...OBSERVED MAX HAIL SIZE...1.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Jones  334 WHUS53 KLOT 190218 SMWLOT LMZ741-742-779-190415- /O.NEW.KLOT.MA.W.0076.260819T0218Z-260819T0415Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Chicago/Romeoville 918 PM CDT Tue Aug 18 2026 The National Weather Service in Chicago has issued a * Special Marine Warning for... Nearshore Waters from Wilmette Harbor to Calumet Harbor... Open Waters from Wilmette Harbor to Michigan City out to Mid Lake... * Until 1115 PM CDT. * At 918 PM CDT, strong thunderstorms were located along a line extending from near Waukegan Harbor to 12 nm southeast of McHenry to near Elgin, moving southeast at 30 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Harrison-Dever Crib, Calumet Harbor, Wilmette Harbor, 31st Street Harbor, Montrose Harbor, Monroe Harbor, Belmont Harbor, Burnham Harbor, 59th Street Marina, Jackson Park Harbor, Diversy Harbor, and DuSable Harbor. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4182 8697 4176 8741 4173 8753 4175 8753 4176 8756 4183 8760 4188 8762 4189 8760 4190 8762 4196 8764 4196 8763 4199 8766 4208 8768 4211 8760 4212 8696 TIME...MOT...LOC 0218Z 292DEG 32KT 4230 8790 4221 8807 4205 8824 HAIL...0.00IN WIND...>34KTS $$ Yack  399 WWUS53 KUNR 190218 SVSUNR Severe Weather Statement National Weather Service Rapid City SD 818 PM MDT Tue Aug 18 2026 SDC033-103-190245- /O.CON.KUNR.SV.W.0308.000000T0000Z-260819T0245Z/ Custer SD-Pennington SD- 818 PM MDT Tue Aug 18 2026 ...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM MDT FOR NORTH CENTRAL CUSTER AND SOUTH CENTRAL PENNINGTON COUNTIES... At 818 PM MDT, a severe thunderstorm was located near Black Gap, or 11 miles southeast of Rapid City, moving southeast at 30 mph. HAZARD...Ping pong ball size hail and 60 mph wind gusts. SOURCE...Trained spotters reported. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. Locations impacted include... Caputa, Farmingdale, Thompson Butte, Rapid City Airport and Black Gap. PRECAUTIONARY/PREPAREDNESS ACTIONS... Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and has produced large hail. && LAT...LON 4392 10325 4406 10312 4394 10280 4374 10309 TIME...MOT...LOC 0205Z 308DEG 23KT 4399 10322 HAIL THREAT...OBSERVED MAX HAIL SIZE...1.50 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Dye  350 FZUS73 KLOT 190219 MWSLOT Marine Weather Statement National Weather Service Chicago/Romeoville 919 PM CDT Tue Aug 18 2026 LMZ740-777-190230- /O.CON.KLOT.MA.W.0075.000000T0000Z-260819T0230Z/ 919 PM CDT Tue Aug 18 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 930 PM CDT... For the following areas... Nearshore Waters from Winthrop Harbor to Wilmette Harbor... Open Waters from Winthrop Harbor to Wilmette Harbor out to Mid Lake... At 919 PM CDT, strong thunderstorms were located along a line extending from 25 nm northeast of Montrose Harbor to 9 nm northeast of Wilmette Harbor to 8 nm northwest of Ohare Airport, moving southeast at 35 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar indicated. 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 until hazardous weather passes. && LAT...LON 4212 8696 4211 8760 4208 8768 4214 8775 4227 8783 4234 8782 4238 8701 TIME...MOT...LOC 0219Z 304DEG 34KT 4228 8725 4217 8751 4211 8799 HAIL...0.00IN WIND...>34KTS $$ Yack  691 WWUS53 KTOP 190221 SVSTOP Severe Weather Statement National Weather Service Topeka KS 921 PM CDT Tue Aug 18 2026 KSC061-161-190300- /O.CON.KTOP.SV.W.0370.000000T0000Z-260819T0300Z/ Geary-Riley- 921 PM CDT Tue Aug 18 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR CENTRAL GEARY AND SOUTHERN RILEY COUNTIES... At 921 PM CDT, a severe thunderstorm was located 4 miles southeast of Milford Lake, moving east at 30 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... Southwestern Manhattan, Junction City, Ogden, and Grandview Plaza. This includes Interstate 70 between mile markers 298 and 315. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3912 9690 3916 9686 3916 9648 3893 9654 3904 9691 TIME...MOT...LOC 0221Z 283DEG 27KT 3910 9685 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...<50 MPH $$ Jones  994 WWUS53 KTOP 190221 RRA SVSTOP Severe Weather Statement National Weather Service Topeka KS 921 PM CDT Tue Aug 18 2026 KSC061-161-190300- /O.CON.KTOP.SV.W.0370.000000T0000Z-260819T0300Z/ Geary-Riley- 921 PM CDT Tue Aug 18 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR CENTRAL GEARY AND SOUTHERN RILEY COUNTIES... At 921 PM CDT, a severe thunderstorm was located 4 miles southeast of Milford Lake, moving east at 30 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... Southwestern Manhattan, Junction City, Ogden, and Grandview Plaza. This includes Interstate 70 between mile markers 298 and 315. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3912 9690 3916 9686 3916 9648 3893 9654 3904 9691 TIME...MOT...LOC 0221Z 283DEG 27KT 3910 9685 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...<50 MPH $$ Jones  035 WUUS53 KUNR 190223 SVRUNR SDC093-105-190315- /O.NEW.KUNR.SV.W.0309.260819T0223Z-260819T0315Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Rapid City SD 823 PM MDT Tue Aug 18 2026 The National Weather Service in Rapid City has issued a * Severe Thunderstorm Warning for... Southern Perkins County in northwestern South Dakota... Northeastern Meade County in west central South Dakota... * Until 915 PM MDT. * At 823 PM MDT, severe thunderstorms were located along a line from 6 miles southwest of Date to 5 miles northwest of Union Center, or along a line from 40 miles northwest of Faith to 42 miles east of Sturgis, moving east at 40 mph. HAZARD...70 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. * Locations impacted include... Faith, Union Center, Plainview, Enning, Opal, Maurine, Red Owl, Stoneville, Marcus, White Owl, Usta, Fairpoint, Mud Butte, Date, Zeona, Howes, Durkee Lake and Arrow Head Buttes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Anyone outdoors should move to shelter inside a well-built structure and stay away from windows. These storms are capable of producing widespread damaging winds. && LAT...LON 4460 10296 4495 10293 4541 10293 4540 10200 4488 10200 4446 10208 TIME...MOT...LOC 0223Z 273DEG 35KT 4531 10275 4492 10271 4463 10274 THUNDERSTORM DAMAGE THREAT...CONSIDERABLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...0.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...70 MPH $$ Dye  483 FZUS73 KAPX 190224 MWSAPX Marine Weather Statement National Weather Service Gaylord MI 1024 PM EDT Tue Aug 18 2026 LMZ346-366-190233- /O.CAN.KAPX.MA.W.0100.000000T0000Z-260819T0300Z/ 1024 PM EDT Tue Aug 18 2026 ...THE SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... Lake Michigan from Point Betsie to Manistee MI 5NM offshore to Mid Lake... Manistee to Point Betsie MI... The thunderstorm has weakened and no longer poses a significant threat to boaters. && LAT...LON 4423 8635 4426 8634 4428 8642 4425 8667 4429 8679 4430 8679 4447 8664 4439 8621 4437 8621 4422 8630 TIME...MOT...LOC 0221Z 294DEG 29KT 4422 8628 $$ JZ  857 WWUS53 KTOP 190226 SVSTOP Severe Weather Statement National Weather Service Topeka KS 926 PM CDT Tue Aug 18 2026 KSC061-161-190236- /O.CAN.KTOP.SV.W.0370.000000T0000Z-260819T0300Z/ Geary-Riley- 926 PM CDT Tue Aug 18 2026 ...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL GEARY AND SOUTHERN RILEY COUNTIES IS CANCELLED... The storm which prompted the warning has weakened below severe limits, and no longer poses an immediate threat to life or property. Therefore, the warning has been cancelled. && LAT...LON 3912 9690 3916 9686 3916 9648 3893 9654 3904 9691 TIME...MOT...LOC 0224Z 283DEG 27KT 3909 9680 $$ Jones  623 WWUS53 KUNR 190232 SVSUNR Severe Weather Statement National Weather Service Rapid City SD 832 PM MDT Tue Aug 18 2026 SDC033-103-190245- /O.CON.KUNR.SV.W.0308.000000T0000Z-260819T0245Z/ Custer SD-Pennington SD- 832 PM MDT Tue Aug 18 2026 ...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM MDT FOR NORTH CENTRAL CUSTER AND SOUTH CENTRAL PENNINGTON COUNTIES... At 832 PM MDT, a severe thunderstorm was located near Thompson Butte, or 17 miles southeast of Rapid City, moving southeast at 30 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... Caputa, Farmingdale and Thompson Butte. PRECAUTIONARY/PREPAREDNESS ACTIONS... Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail. && LAT...LON 4387 10320 4403 10304 4394 10280 4374 10309 TIME...MOT...LOC 0218Z 308DEG 23KT 4393 10312 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Dye  473 FZUS73 KLOT 190232 MWSLOT Marine Weather Statement National Weather Service Chicago/Romeoville 932 PM CDT Tue Aug 18 2026 LMZ740-777-190242- /O.EXP.KLOT.MA.W.0075.000000T0000Z-260819T0230Z/ 932 PM CDT Tue Aug 18 2026 ...THE SPECIAL MARINE WARNING EXPIRED AT 930 PM CDT... The affected areas were... Nearshore Waters from Winthrop Harbor to Wilmette Harbor... Open Waters from Winthrop Harbor to Wilmette Harbor out to Mid Lake... The thunderstorms have moved out of the area and no longer pose a significant threat to boaters. && LAT...LON 4212 8696 4211 8760 4208 8768 4214 8775 4227 8783 4234 8782 4238 8701 TIME...MOT...LOC 0232Z 324DEG 28KT 4223 8720 4212 8746 4206 8794 $$ Yack  357 FZUS72 KTAE 190236 MWSTAE Marine Weather Statement National Weather Service Tallahassee FL 1036 PM EDT Tue Aug 18 2026 GMZ735-190245- /O.CAN.KTAE.MA.W.0300.000000T0000Z-260819T0300Z/ 1036 PM EDT Tue Aug 18 2026 ...THE SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... St. Andrews Bay Waterways... The thunderstorms have moved out of the warned area and no longer pose a significant threat to boaters. && LAT...LON 2978 8582 2966 8475 2907 8476 2916 8611 TIME...MOT...LOC 0235Z 009DEG 28KT 2928 8584 2937 8496 $$ GMZ751-752-755-770-772-775-190300- /O.CON.KTAE.MA.W.0300.000000T0000Z-260819T0300Z/ 1036 PM EDT Tue Aug 18 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 1100 PM EDT/1000 PM CDT/... For the following areas... Coastal Waters From Ochlockonee River to Apalachicola FL out to 20 Nm... Coastal Waters from Mexico Beach to Apalachicola out 20 NM... Coastal waters from Okaloosa-Walton County Line to Mexico Beach out 20 NM... Waters from Mexico Beach to Apalachicola FL from 20 to 60 NM... Waters from Okaloosa-Walton County Line to Mexico Beach from 20 to 60 NM... Waters from Suwannee River to Apalachicola FL from 20 to 60 NM... At 1035 PM EDT/935 PM CDT/, strong thunderstorms were located along a line extending from 25 nm west of Empire Mica Wreck to near C Tower, moving south at 30 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar indicated. IMPACT...Expect wind gusts in excess of 34 knots...suddenly higher waves...frequent lightning...and heavy downpours. Make sure all on board are wearing life jackets. The St George Island weatherstem gusted to 36 knots at 959 PM EDT. Locations impacted include... Empire Mica Wreck, C Tower, Cape San Blas, and St George Island. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor immediately as gusty winds and high waves are expected. Frequent lightning is occurring with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && LAT...LON 2978 8582 2966 8475 2907 8476 2916 8611 TIME...MOT...LOC 0235Z 009DEG 28KT 2928 8584 2937 8496 HAIL...0.00IN WIND...>34KTS $$ IG3  206 WWUS53 KUNR 190237 SVSUNR Severe Weather Statement National Weather Service Rapid City SD 837 PM MDT Tue Aug 18 2026 SDC033-103-190247- /O.CAN.KUNR.SV.W.0308.000000T0000Z-260819T0245Z/ Custer SD-Pennington SD- 837 PM MDT Tue Aug 18 2026 ...SEVERE THUNDERSTORM WARNING IS CANCELLED FOR NORTH CENTRAL CUSTER AND SOUTH CENTRAL PENNINGTON COUNTIES... 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, small hail and gusty winds are still possible with this thunderstorm. && LAT...LON 4387 10320 4403 10304 4394 10280 4374 10309 TIME...MOT...LOC 0232Z 309DEG 23KT 4388 10303 $$ Dye  852 WUUS53 KEAX 190237 SVREAX KSC005-190315- /O.NEW.KEAX.SV.W.0459.260819T0237Z-260819T0315Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Kansas City/Pleasant Hill MO 937 PM CDT Tue Aug 18 2026 The National Weather Service in Pleasant Hill has issued a * Severe Thunderstorm Warning for... Atchison County in northeastern Kansas... * Until 1015 PM CDT. * At 937 PM CDT, a severe thunderstorm was located near Effingham, or 8 miles southeast of Horton, moving east at 45 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Atchison, Effingham, Lancaster, Muscotah, Farmington, Huron, Cummings, Arrington, and Potter. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3956 9557 3965 9555 3966 9512 3962 9510 3962 9506 3959 9505 3957 9507 3958 9511 3954 9511 3950 9505 3946 9504 3945 9499 3942 9497 3942 9557 TIME...MOT...LOC 0237Z 279DEG 37KT 3956 9544 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ CDB  687 WUUS53 KTOP 190237 SVRTOP KSC117-149-161-201-190315- /O.NEW.KTOP.SV.W.0371.260819T0237Z-260819T0315Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Topeka KS 937 PM CDT Tue Aug 18 2026 The National Weather Service in Topeka has issued a * Severe Thunderstorm Warning for... North central Riley County in northeastern Kansas... Northwestern Pottawatomie County in northeastern Kansas... Southeastern Washington County in north central Kansas... Southwestern Marshall County in northeastern Kansas... * Until 1015 PM CDT. * At 937 PM CDT, a severe thunderstorm was located 7 miles south of Barnes, moving east at 40 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * Locations impacted include... Olsburg. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3960 9700 3967 9690 3961 9635 3937 9666 TIME...MOT...LOC 0237Z 286DEG 33KT 3960 9688 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...<50 MPH $$ Jones  654 FZUS73 KLOT 190243 MWSLOT Marine Weather Statement National Weather Service Chicago/Romeoville 943 PM CDT Tue Aug 18 2026 LMZ741-742-779-190415- /O.CON.KLOT.MA.W.0076.000000T0000Z-260819T0415Z/ 943 PM CDT Tue Aug 18 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT... For the following areas... Nearshore Waters from Wilmette Harbor to Calumet Harbor... Open Waters from Wilmette Harbor to Michigan City out to Mid Lake... At 942 PM CDT, strong thunderstorms were located along a line extending from near Wilmette Harbor to near Ohare Airport to 12 nm southeast of Elgin, moving southeast at 30 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Locations impacted include... Harrison-Dever Crib, Calumet Harbor, Wilmette Harbor, 31st Street Harbor, Montrose Harbor, Monroe Harbor, Belmont Harbor, Burnham Harbor, 59th Street Marina, Jackson Park Harbor, Diversy Harbor, and DuSable Harbor. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4182 8697 4176 8741 4173 8753 4175 8753 4176 8756 4183 8760 4188 8762 4189 8760 4190 8762 4196 8764 4196 8763 4199 8766 4208 8768 4211 8760 4212 8696 TIME...MOT...LOC 0242Z 301DEG 29KT 4214 8775 4206 8783 4195 8803 HAIL...0.00IN WIND...>34KTS $$ Yack  642 WWUS53 KTOP 190245 SVSTOP Severe Weather Statement National Weather Service Topeka KS 945 PM CDT Tue Aug 18 2026 KSC201-190253- /O.CAN.KTOP.SV.W.0371.000000T0000Z-260819T0315Z/ Washington- 945 PM CDT Tue Aug 18 2026 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WASHINGTON COUNTY IS CANCELLED... The severe thunderstorm which prompted the warning has moved out of the warned area. Therefore, the warning has been cancelled. && LAT...LON 3961 9635 3937 9666 3956 9690 3957 9681 3962 9681 3963 9679 TIME...MOT...LOC 0243Z 286DEG 33KT 3958 9681 $$ KSC117-149-161-190315- /O.CON.KTOP.SV.W.0371.000000T0000Z-260819T0315Z/ Riley-Pottawatomie-Marshall- 945 PM CDT Tue Aug 18 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT FOR NORTH CENTRAL RILEY...NORTHWESTERN POTTAWATOMIE AND SOUTHWESTERN MARSHALL COUNTIES... At 943 PM CDT, a severe thunderstorm was located 8 miles south of Waterville, moving east at 40 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... Olsburg. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3961 9635 3937 9666 3956 9690 3957 9681 3962 9681 3963 9679 TIME...MOT...LOC 0243Z 286DEG 33KT 3958 9681 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...<50 MPH $$ Jones  400 WWUS53 KEAX 190246 SVSEAX Severe Weather Statement National Weather Service Kansas City/Pleasant Hill MO 946 PM CDT Tue Aug 18 2026 KSC005-190315- /O.CON.KEAX.SV.W.0459.000000T0000Z-260819T0315Z/ Atchison KS- 946 PM CDT Tue Aug 18 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT FOR ATCHISON COUNTY... At 946 PM CDT, a severe thunderstorm was located near Effingham, or 10 miles north of Valley Falls, moving southeast at 30 mph. HAZARD...60 mph wind gusts and half dollar size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Atchison, Effingham, Lancaster, Muscotah, Farmington, Huron, Cummings, Arrington, and Potter. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3956 9557 3965 9555 3966 9512 3962 9510 3962 9506 3959 9505 3957 9507 3958 9511 3954 9511 3950 9505 3946 9504 3945 9499 3942 9497 3942 9557 TIME...MOT...LOC 0246Z 293DEG 24KT 3950 9545 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.25 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ CDB  861 WWUS53 KTOP 190253 SVSTOP Severe Weather Statement National Weather Service Topeka KS 953 PM CDT Tue Aug 18 2026 KSC117-149-161-190315- /O.CON.KTOP.SV.W.0371.000000T0000Z-260819T0315Z/ Riley-Pottawatomie-Marshall- 953 PM CDT Tue Aug 18 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT FOR NORTH CENTRAL RILEY...NORTHWESTERN POTTAWATOMIE AND SOUTHWESTERN MARSHALL COUNTIES... At 953 PM CDT, a severe thunderstorm was located 8 miles south of Blue Rapids, moving east at 40 mph. HAZARD...60 mph wind gusts and half dollar size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Olsburg. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3961 9635 3937 9666 3956 9690 3957 9681 3961 9679 TIME...MOT...LOC 0253Z 286DEG 33KT 3955 9669 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.25 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Jones  476 WUUS53 KTOP 190255 SVRTOP KSC085-087-177-190400- /O.NEW.KTOP.SV.W.0372.260819T0255Z-260819T0400Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Topeka KS 955 PM CDT Tue Aug 18 2026 The National Weather Service in Topeka has issued a * Severe Thunderstorm Warning for... Jefferson County in northeastern Kansas... Northern Shawnee County in east central Kansas... Southern Jackson County in northeastern Kansas... * Until 1100 PM CDT. * At 954 PM CDT, a severe thunderstorm was located over Potawatomi Reservation, moving east at 50 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... Holton, Valley Falls, Oskaloosa, Perry, McLouth, Meriden, Hoyt, Ozawkie, Nortonville, Winchester, Mayetta, Denison, Delia, Perry Lake, and Potawatomi Reservation. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3913 9519 3905 9519 3916 9597 3950 9594 3951 9557 3942 9557 3942 9518 3913 9518 TIME...MOT...LOC 0254Z 284DEG 42KT 3932 9585 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Jones  925 WWUS53 KEAX 190255 SVSEAX Severe Weather Statement National Weather Service Kansas City/Pleasant Hill MO 955 PM CDT Tue Aug 18 2026 KSC005-190315- /O.CON.KEAX.SV.W.0459.000000T0000Z-260819T0315Z/ Atchison KS- 955 PM CDT Tue Aug 18 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT FOR ATCHISON COUNTY... At 955 PM CDT, a severe thunderstorm was located near Effingham, or 8 miles northeast of Valley Falls, moving southeast at 30 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Atchison, Effingham, Lancaster, Muscotah, Farmington, Cummings, Arrington, and Potter. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3956 9556 3959 9530 3958 9511 3954 9511 3950 9505 3946 9504 3945 9499 3942 9497 3942 9557 TIME...MOT...LOC 0255Z 296DEG 24KT 3946 9539 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ CDB  547 WUUS53 KTOP 190255 RRA SVRTOP KSC085-087-177-190400- /O.NEW.KTOP.SV.W.0373.260819T0255Z-260819T0400Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Topeka KS 955 PM CDT Tue Aug 18 2026 The National Weather Service in Topeka has issued a * Severe Thunderstorm Warning for... Jefferson County in northeastern Kansas... Northern Shawnee County in east central Kansas... Southern Jackson County in northeastern Kansas... * Until 1100 PM CDT. * At 955 PM CDT, a severe thunderstorm was located over Potawatomi Reservation, moving east at 50 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... Holton, Valley Falls, Oskaloosa, Perry, McLouth, Meriden, Hoyt, Ozawkie, Nortonville, Winchester, Mayetta, Denison, Delia, Perry Lake, and Potawatomi Reservation. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3913 9519 3905 9519 3916 9597 3950 9594 3951 9557 3942 9557 3942 9518 3913 9518 TIME...MOT...LOC 0255Z 284DEG 42KT 3932 9584 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Jones  463 WHUS52 KTAE 190259 SMWTAE GMZ751-752-770-772-190430- /O.NEW.KTAE.MA.W.0301.260819T0259Z-260819T0430Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Tallahassee FL 959 PM CDT Tue Aug 18 2026 The National Weather Service in Tallahassee has issued a * Special Marine Warning for... Coastal Waters from Mexico Beach to Apalachicola out 20 NM... Coastal waters from Okaloosa-Walton County Line to Mexico Beach out 20 NM... Waters from Mexico Beach to Apalachicola FL from 20 to 60 NM... Waters from Okaloosa-Walton County Line to Mexico Beach from 20 to 60 NM... * Until 1130 PM CDT. * At 959 PM CDT, strong thunderstorms were located along a line extending from 21 nm northwest of Empire Mica Wreck to 11 nm west of C Tower, moving southwest at 10 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar indicated. IMPACT...Expect wind gusts in excess of 34 knots...suddenly higher waves...frequent lightning...and heavy downpours. Make sure all on board are wearing life jackets. * Locations impacted include... Empire Mica Wreck. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. Frequent lightning is occurring with these storms. If caught on the open water stay below deck if possible, keep away from ungrounded metal objects. && LAT...LON 2960 8570 2950 8498 2893 8498 2904 8609 TIME...MOT...LOC 0259Z 023DEG 12KT 2949 8570 2942 8508 HAIL...0.00IN WIND...>34KTS $$ IG3  766 WWUS53 KUNR 190259 SVSUNR Severe Weather Statement National Weather Service Rapid City SD 859 PM MDT Tue Aug 18 2026 SDC093-105-190315- /O.CON.KUNR.SV.W.0309.000000T0000Z-260819T0315Z/ Meade SD-Perkins SD- 859 PM MDT Tue Aug 18 2026 ...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM MDT FOR SOUTHEASTERN PERKINS AND NORTHEASTERN MEADE COUNTIES... At 859 PM MDT, severe thunderstorms were located along a line from 8 miles south of Chance to near Marcus, or along a line from 24 miles northwest of Faith to 32 miles southwest of Faith, moving east at 35 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Faith, Plainview, Opal, Usta, Marcus, Red Owl, White Owl, Howes, Durkee Lake and Arrow Head Buttes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Seek shelter inside a well-built structure and stay away from windows. These storms are capable of producing damaging winds. && LAT...LON 4460 10266 4495 10258 4539 10253 4540 10200 4488 10200 4451 10207 TIME...MOT...LOC 0223Z 273DEG 29KT 4531 10274 4492 10270 4463 10273 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...0.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Dye