935 WUUS53 KMKX 150800 SVRMKX WIC127-150830- /O.NEW.KMKX.SV.W.0063.260415T0800Z-260415T0830Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Milwaukee/Sullivan WI 300 AM CDT Wed Apr 15 2026 The National Weather Service in Milwaukee/Sullivan has issued a * Severe Thunderstorm Warning for... Southern Walworth County in southeastern Wisconsin... * Until 330 AM CDT. * At 259 AM CDT, a severe thunderstorm was located near Sharon, or near Harvard, moving east at 45 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * Locations impacted include... Lake Geneva, Williams Bay, Genoa City, Walworth, Richmond, Fontana-On-Geneva Lake, Sharon, Como, Pell Lake, Powers Lake, Burlington, Springfield, and Delavan Lake. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4254 8877 4271 8831 4249 8831 4249 8877 TIME...MOT...LOC 0759Z 256DEG 41KT 4248 8867 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...<50 MPH $$ QUIGLEY  212 WWUS53 KLOT 150801 SVSLOT Severe Weather Statement National Weather Service Chicago/Romeoville 301 AM CDT Wed Apr 15 2026 ILC007-150811- /O.CAN.KLOT.SV.W.0087.000000T0000Z-260415T0830Z/ Boone IL- 301 AM CDT Wed Apr 15 2026 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN BOONE COUNTY IS CANCELLED... The severe thunderstorm which prompted the warning has moved out of the warned area. Therefore, the warning has been cancelled. && LAT...LON 4249 8820 4235 8820 4240 8870 4249 8871 4250 8864 TIME...MOT...LOC 0801Z 261DEG 43KT 4247 8859 $$ ILC111-150830- /O.CON.KLOT.SV.W.0087.000000T0000Z-260415T0830Z/ McHenry IL- 301 AM CDT Wed Apr 15 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 AM CDT FOR NORTHERN MCHENRY COUNTY... At 301 AM CDT, a severe thunderstorm was located near Harvard, moving east at 50 mph. HAZARD...Ping pong ball size hail and 60 mph wind gusts. SOURCE...Radar indicated. 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... McHenry, Fox Lake, Harvard, Johnsburg, Lakemoor, Spring Grove, Wonder Lake, Pistakee Highlands, Richmond, Hebron, McCullom Lake, Ringwood, Chemung, and Greenwood. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4249 8820 4235 8820 4240 8870 4249 8871 4250 8864 TIME...MOT...LOC 0801Z 261DEG 43KT 4247 8859 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.50 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ Carlaw  416 FZUS73 KLOT 150806 MWSLOT Marine Weather Statement National Weather Service Chicago/Romeoville 306 AM CDT Wed Apr 15 2026 LMZ740-777-150845- 306 AM CDT Wed Apr 15 2026 A Marine Weather Statement has been issued for the following areas... Nearshore Waters from Winthrop Harbor to Wilmette Harbor... Open Waters from Winthrop Harbor to Wilmette Harbor out to Mid Lake... At 306 AM CDT, Doppler radar indicated a strong thunderstorm, capable of producing winds to around 30 knots and small hail. This thunderstorm was located near Waukegan Harbor, moving east at 40 knots. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners can expect gusty winds to around 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until this storm passes. && LAT...LON 4247 8728 4231 8740 4234 8782 4238 8781 4239 8780 4248 8780 $$ Carlaw  284 WWUS53 KMKX 150808 SVSMKX Severe Weather Statement National Weather Service Milwaukee/Sullivan WI 308 AM CDT Wed Apr 15 2026 WIC127-150830- /O.CON.KMKX.SV.W.0063.000000T0000Z-260415T0830Z/ Walworth WI- 308 AM CDT Wed Apr 15 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 AM CDT FOR SOUTHEASTERN WALWORTH COUNTY... At 308 AM CDT, a severe thunderstorm was located near Fontana-On-Geneva Lake, or near Williams Bay, 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... Lake Geneva, Williams Bay, Genoa City, Walworth, Richmond, Fontana-On-Geneva Lake, Pell Lake, Como, Powers Lake, Burlington, Springfield, and Delavan Lake. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4271 8831 4249 8831 4249 8866 4258 8865 TIME...MOT...LOC 0808Z 256DEG 41KT 4251 8853 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ QUIGLEY  669 WHUS51 KCLE 150811 SMWCLE LEZ148-149-168-169-150945- /O.NEW.KCLE.MA.W.0022.260415T0811Z-260415T0945Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Cleveland OH 411 AM EDT Wed Apr 15 2026 The National Weather Service in Cleveland has issued a * Special Marine Warning for... Nearshore and Open waters from Geneva-on-the-lake OH to Ripley NY... * Until 545 AM EDT. * At 411 AM EDT, strong thunderstorms were located along a line extending from 22 nm northwest of Ashtabula to 6 nm west of Geneva-On-The-Lake, moving east at 55 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Erie, Geneva-On-The-Lake, Ashtabula, and Conneaut. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4248 7985 4234 7982 4228 7974 4227 7976 4221 7977 4195 8053 4185 8095 4226 8093 4230 8058 4232 8056 4239 8009 TIME...MOT...LOC 0811Z 271DEG 56KT 4222 8100 4188 8109 HAIL...0.00IN WIND...>34KTS $$ Sefcovic  796 WWUS53 KLOT 150812 SVSLOT Severe Weather Statement National Weather Service Chicago/Romeoville 312 AM CDT Wed Apr 15 2026 ILC111-150830- /O.CON.KLOT.SV.W.0087.000000T0000Z-260415T0830Z/ McHenry IL- 312 AM CDT Wed Apr 15 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 AM CDT FOR NORTHEASTERN MCHENRY COUNTY... At 312 AM CDT, a severe thunderstorm was located over Hebron, or near Lake Geneva, moving east at 50 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... McHenry, Fox Lake, Johnsburg, Lakemoor, Spring Grove, Wonder Lake, Pistakee Highlands, Richmond, Hebron, McCullom Lake, Ringwood, and Greenwood. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4249 8820 4235 8820 4240 8842 4249 8848 TIME...MOT...LOC 0812Z 262DEG 43KT 4249 8840 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...<50 MPH $$ Carlaw  550 FZUS71 KCLE 150813 MWSCLE Marine Weather Statement National Weather Service Cleveland OH 413 AM EDT Wed Apr 15 2026 LEZ145-165-150823- /O.CAN.KCLE.MA.W.0021.000000T0000Z-260415T0930Z/ 413 AM EDT Wed Apr 15 2026 ...THE SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... Nearshore and Open waters from Vermilion OH to Avon Point OH... The thunderstorms have moved out of the warned area and no longer pose a significant threat to boaters. LAT...LON 4146 8176 4147 8191 4162 8198 4191 8140 4224 8105 4226 8093 4186 8095 4172 8126 4150 8161 4140 8166 TIME...MOT...LOC 0813Z 263DEG 55KT 4222 8096 4192 8103 4148 8174 $$ LEZ146-147-166-167-150930- /O.CON.KCLE.MA.W.0021.000000T0000Z-260415T0930Z/ 413 AM EDT Wed Apr 15 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 530 AM EDT... For the following areas... Nearshore and Open waters from Avon Point OH to Geneva-on-the-lake OH... At 413 AM EDT, strong thunderstorms were located along a line extending from 21 nm north of Ashtabula to near Geneva-On-The-Lake to near Cleveland, moving east at 55 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... Willowick, Fairport Harbor, Cleveland, and Geneva-On-The-Lake. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4146 8176 4147 8191 4162 8198 4191 8140 4224 8105 4226 8093 4186 8095 4172 8126 4150 8161 4140 8166 TIME...MOT...LOC 0813Z 263DEG 55KT 4222 8096 4192 8103 4148 8174 HAIL...0.00IN WIND...>34KTS $$ Sefcovic  600 WWUS53 KMKX 150818 SVSMKX Severe Weather Statement National Weather Service Milwaukee/Sullivan WI 318 AM CDT Wed Apr 15 2026 WIC127-150830- /O.CON.KMKX.SV.W.0063.000000T0000Z-260415T0830Z/ Walworth WI- 318 AM CDT Wed Apr 15 2026 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 AM CDT FOR SOUTHEASTERN WALWORTH COUNTY... At 317 AM CDT, a severe thunderstorm was located over Pell Lake, or near Lake Geneva, moving east at 45 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Lake Geneva, Genoa City, Richmond, Pell Lake, Como, Powers Lake, Burlington, and Springfield. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 4271 8831 4249 8831 4249 8848 4260 8853 TIME...MOT...LOC 0817Z 256DEG 41KT 4254 8838 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ QUIGLEY  127 WWUS53 KLOT 150824 SVSLOT Severe Weather Statement National Weather Service Chicago/Romeoville 324 AM CDT Wed Apr 15 2026 ILC111-150833- /O.EXP.KLOT.SV.W.0087.000000T0000Z-260415T0830Z/ McHenry IL- 324 AM CDT Wed Apr 15 2026 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MCHENRY COUNTY WILL EXPIRE AT 330 AM CDT... The storm which prompted the warning has weakened below severe limits, and has exited the warned area. Therefore, the warning will be allowed to expire. && LAT...LON 4249 8820 4235 8820 4240 8842 4249 8848 TIME...MOT...LOC 0823Z 262DEG 43KT 4250 8828 $$ Carlaw  282 WWUS53 KMKX 150825 SVSMKX Severe Weather Statement National Weather Service Milwaukee/Sullivan WI 325 AM CDT Wed Apr 15 2026 WIC127-150835- /O.EXP.KMKX.SV.W.0063.000000T0000Z-260415T0830Z/ Walworth WI- 325 AM CDT Wed Apr 15 2026 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WALWORTH COUNTY WILL EXPIRE AT 330 AM CDT... The storm which prompted the warning has moved out of the area. Therefore, the warning will be allowed to expire. && LAT...LON 4271 8831 4249 8831 4249 8848 4260 8853 TIME...MOT...LOC 0825Z 270DEG 41KT 4256 8829 $$ QUIGLEY  744 FZUS73 KMKX 150833 MWSMKX Marine Weather Statement National Weather Service Milwaukee/Sullivan WI 333 AM CDT Wed Apr 15 2026 LMZ645-646-673-675-150930- 333 AM CDT Wed Apr 15 2026 ...STRONG THUNDERSTORMS APPROACHING THE WATERS... The areas affected include... Lake Michigan nearshore and open waters to mid lake from North Point Light WI to Winthrop Harbor IL... At 332 AM CDT, Doppler radar indicated strong thunderstorms, capable of producing winds to around 30 knots and small hail. These thunderstorms were located along a line extending from 19 nm west of Racine to 9 nm west of Kenosha to 7 nm west of Pleasant Prairie to 10 nm east of McHenry, moving east at 45 knots. 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 4248 8780 4261 8782 4267 8781 4267 8779 4271 8777 4276 8777 4278 8775 4284 8781 4303 8710 4246 8702 $$ QUIGLEY  304 FZUS73 KLOT 150841 MWSLOT Marine Weather Statement National Weather Service Chicago/Romeoville 341 AM CDT Wed Apr 15 2026 LMZ740-777-150945- 341 AM CDT Wed Apr 15 2026 ...STRONG THUNDERSTORMS APPROACHING THE WATERS... The areas affected include... Nearshore Waters from Winthrop Harbor to Wilmette Harbor... Open Waters from Winthrop Harbor to Wilmette Harbor out to Mid Lake... At 341 AM CDT, Doppler radar indicated strong thunderstorms, capable of producing winds to around 30 knots and small hail. These thunderstorms were located along a line extending from near Kenosha to Winthrop Harbor to 8 nm east of McHenry, moving east at 50 knots. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners can expect gusty winds to around 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until these storms pass. && LAT...LON 4246 8702 4227 8699 4221 8780 4229 8783 4231 8782 4237 8783 4237 8782 4236 8782 4239 8780 4248 8780 $$ Carlaw  122 WHUS51 KBUF 150847 SMWBUF LEZ020-040-041-061-151015- /O.NEW.KBUF.MA.W.0007.260415T0847Z-260415T1015Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Buffalo NY 447 AM EDT Wed Apr 15 2026 The National Weather Service in Buffalo has issued a * Special Marine Warning for... Lake Erie from Ripley to Buffalo... The Upper Niagara River and Buffalo Harbor... * Until 615 AM EDT. * At 446 AM EDT, strong thunderstorms were located along a line extending from 21 nm northwest of Lake Erie Beach to near Erie, moving northeast at 55 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... Small Boat Harbor, Van Buren Point, Lake Erie Beach, Grand Island, Barcelona, Woodlawn Beach, Erie Basin Marina, Sturgeon Point, Ripley, Wanakah, Dunkirk, Athol Springs, Bayview, and Sunset Bay. 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 4228 7973 4229 7975 4234 7982 4248 7985 4283 7893 4292 7890 4296 7893 4299 7902 4306 7900 4311 7906 4313 7900 4311 7900 4307 7886 4298 7888 4278 7881 4266 7901 4252 7914 4246 7932 4239 7942 4228 7964 TIME...MOT...LOC 0846Z 243DEG 55KT 4285 7948 4217 8001 HAIL...0.00IN WIND...40KTS $$ Hitchcock  573 FZUS71 KCLE 150847 MWSCLE Marine Weather Statement National Weather Service Cleveland OH 447 AM EDT Wed Apr 15 2026 LEZ146-147-166-167-150857- /O.CAN.KCLE.MA.W.0021.000000T0000Z-260415T0930Z/ 447 AM EDT Wed Apr 15 2026 ...THE SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... Nearshore and Open waters from Avon Point OH to Geneva-on-the-lake OH... The thunderstorms have moved out of the area and no longer pose a significant threat to boaters. LAT...LON 4146 8176 4147 8191 4162 8198 4191 8140 4224 8105 4226 8093 4186 8095 4172 8126 4150 8161 4140 8166 TIME...MOT...LOC 0842Z 274DEG 50KT 4219 8040 4189 8048 4145 8119 $$ Sefcovic  356 FZUS71 KCLE 150849 MWSCLE Marine Weather Statement National Weather Service Cleveland OH 449 AM EDT Wed Apr 15 2026 LEZ148-168-150859- /O.CAN.KCLE.MA.W.0022.000000T0000Z-260415T0945Z/ 449 AM EDT Wed Apr 15 2026 ...THE SPECIAL MARINE WARNING IS CANCELLED... The affected areas were... Nearshore and Open waters from Geneva-on-the-lake OH to Conneaut OH... The thunderstorms have moved out of the warned area and no longer pose a significant threat to boaters. LAT...LON 4248 7985 4234 7982 4228 7974 4227 7976 4221 7977 4195 8051 4236 8026 4239 8009 TIME...MOT...LOC 0849Z 254DEG 52KT 4222 8010 4195 8024 $$ LEZ149-169-150945- /O.CON.KCLE.MA.W.0022.000000T0000Z-260415T0945Z/ 449 AM EDT Wed Apr 15 2026 ...A SPECIAL MARINE WARNING REMAINS IN EFFECT UNTIL 545 AM EDT... For the following areas... Nearshore waters from Conneaut OH to Ripley NY... Open waters from Conneaut OH to Ripley NY... At 449 AM EDT, strong thunderstorms were located along a line extending from near Erie to 14 nm east of Conneaut, moving east at 50 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar indicated. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. Locations impacted include... Erie. PRECAUTIONARY/PREPAREDNESS ACTIONS... Move to safe harbor until hazardous weather passes. && LAT...LON 4248 7985 4234 7982 4228 7974 4227 7976 4221 7977 4195 8051 4236 8026 4239 8009 TIME...MOT...LOC 0849Z 254DEG 52KT 4222 8010 4195 8024 HAIL...0.00IN WIND...>34KTS $$ Sefcovic