Immediate

Responsive action SHOULD be taken immediately

Illinois, Indiana Severe Thunderstorm Warning | Effective 05/04/2026 15:50

At 550 PM CDT, a severe thunderstorm was located over Thornton, or<br /> over Homewood, moving east at 40 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include...<br /> Hammond, Gary, Tinley Park, Calumet City, Portage, Merrillville,<br /> Chicago Heights, East Chicago, Schererville, Hobart, Lansing, Oak<br /> Forest, Harvey, Highland, Munster, Dolton, Homewood, Matteson, South<br /> Holland, Griffith, Country Club Hills, Dyer, South Deering, Hazel<br />

Indiana, Michigan Severe Thunderstorm Warning | Effective 05/04/2026 15:53

SVRIWX The National Weather Service in Northern Indiana has issued a * Severe Thunderstorm Warning for...<br /> Northwestern La Porte County in northwestern Indiana...<br /> Southwestern Berrien County in southwestern Michigan... * Until 730 PM EDT/630 PM CDT/. * At 652 PM EDT/552 PM CDT/, a severe thunderstorm was located near<br /> Pottawattamie Park, or near Michigan City, moving east at 40 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage<br />

Illinois Severe Thunderstorm Warning | Effective 05/04/2026 15:56

At 556 PM CDT, severe thunderstorms were located along a line<br /> extending from near Hooppole to Nekoma, moving east at 40 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Trained weather spotters. IMPACT...Hail damage to vehicles is expected. Expect wind damage to<br /> roofs, siding, and trees. Locations impacted include...<br /> Kewanee, Cambridge, Geneseo, Galva, Atkinson, Annawan, Andover,<br /> Hooppole, Lynn Center, Osco, Bishop Hill, Henry County Fairgrounds,<br />

Illinois, Iowa Severe Thunderstorm Warning | Effective 05/04/2026 15:33

SVRDVN The National Weather Service in the Quad Cities has issued a * Severe Thunderstorm Warning for...<br /> Northeastern Henderson County in west central Illinois...<br /> Northern Warren County in west central Illinois...<br /> Southeastern Mercer County in northwestern Illinois...<br /> Southwestern Henry County in northwestern Illinois...<br /> Northeastern Des Moines County in southeastern Iowa... * Until 615 PM CDT. * At 533 PM CDT, severe thunderstorms were located along a line<br /> extending from Gilchrist to Kossuth, moving east at 35 mph.

Illinois, Indiana Severe Thunderstorm Warning | Effective 05/04/2026 15:36

SVRLOT The National Weather Service in Chicago has issued a * Severe Thunderstorm Warning for...<br /> Southeastern Cook County in northeastern Illinois...<br /> Northern Lake County in northwestern Indiana... * Until 630 PM CDT. * At 536 PM CDT, a severe thunderstorm was located over Orland Park,<br /> moving east at 45 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include...<br /> Hammond, Gary, Orland Park, Tinley Park, Calumet City, Portage,<br />

Illinois Severe Thunderstorm Warning | Effective 05/04/2026 15:42

SVRDVN The National Weather Service in the Quad Cities has issued a * Severe Thunderstorm Warning for...<br /> Northeastern Mercer County in northwestern Illinois...<br /> Henry County in northwestern Illinois... * Until 630 PM CDT. * At 542 PM CDT, a severe thunderstorm was located over Lynn Center,<br /> or 10 miles west of Cambridge, 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<br /> to roofs, siding, and trees.

Illinois, Iowa Severe Thunderstorm Warning | Effective 05/04/2026 15:08

SVRDVN The National Weather Service in the Quad Cities has issued a * Severe Thunderstorm Warning for...<br /> Eastern Rock Island County in northwestern Illinois...<br /> Southwestern Whiteside County in northwestern Illinois...<br /> Northern Henry County in northwestern Illinois...<br /> Eastern Scott County in east central Iowa... * Until 545 PM CDT. * At 508 PM CDT, severe thunderstorms were located along a line<br /> extending from Princeton to Coal Valley, moving east at 50 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated.

Illinois Severe Thunderstorm Warning | Effective 05/04/2026 15:19

At 518 PM CDT, a severe thunderstorm was located over Lockport,<br /> moving east at 40 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include...<br /> Joliet, Orland Park, Tinley Park, Romeoville, Oak Forest, Lockport,<br /> New Lenox, Homer Glen, Mokena, Frankfort, Crest Hill, Palos Heights,<br /> Crestwood, Frankfort Square, Ingalls Park, Orland Hills, Fairmont,<br /> and Rockdale.<br />

Iowa Severe Thunderstorm Warning | Effective 05/04/2026 14:42

At 441 PM CDT, severe thunderstorms were located along a line<br /> extending from near Rochester to Moscow, moving east at 45 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include...<br /> Wilton and Moscow. This includes Interstate 80 in Iowa between mile markers 265 and 273.<br /> For your protection move to an interior room on the lowest floor of a<br /> sturdy building.
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