Severe

Significant threat to life or property

Alaska Flood Warning | Effective 05/18/2026 10:43

* WHAT...Flooding caused by snowmelt continues. * WHERE...Koyukuk. * WHEN...Until 1000 PM AKDT Monday. * IMPACTS...High water may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - At 940 AM AKDT, high water from Yukon River snowmelt has resulted in flooding in the community of Koyukuk. As of Monday morning water levels were finally starting to decline. The stream gauge at Galena shows water levels continuing to

Indiana, Michigan Severe Thunderstorm Warning | Effective 05/18/2026 10:44

SVRIWX The National Weather Service in Northern Indiana has issued a * Severe Thunderstorm Warning for... Elkhart County in north central Indiana... Eastern St. Joseph County in north central Indiana... Cass County in southwestern Michigan... Western St. Joseph County in southwestern Michigan... * Until 230 PM EDT. * At 144 PM EDT, severe thunderstorms were located along a line extending from near Hartford to Edwardsburg to near Bremen, moving northeast at 30 mph. HAZARD...60 mph wind gusts and penny size hail.

Illinois Severe Thunderstorm Watch | Effective 05/18/2026 10:44

SEVERE THUNDERSTORM WATCH 220 REMAINS VALID UNTIL 5 PM CDT THIS AFTERNOON FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 8 COUNTIES IN EAST CENTRAL ILLINOIS CLARK CUMBERLAND IN SOUTHEAST ILLINOIS CLAY CRAWFORD EFFINGHAM JASPER LAWRENCE RICHLAND THIS INCLUDES THE CITIES OF EFFINGHAM, FLORA, GREENUP, LAWRENCEVILLE, MARSHALL, NEWTON, OLNEY, AND ROBINSON.

Indiana Severe Thunderstorm Warning | Effective 05/18/2026 10:44

SVRIWX The National Weather Service in Northern Indiana has issued a * Severe Thunderstorm Warning for... Wabash County in north central Indiana... Kosciusko County in north central Indiana... * Until 230 PM EDT. * At 143 PM EDT, a severe thunderstorm was located near Akron, or near Rochester, moving northeast at 45 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Warsaw, Wabash, North Manchester, Winona Lake, Akron, North

Michigan Severe Thunderstorm Watch | Effective 05/18/2026 10:00

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 221 IN EFFECT UNTIL 8 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN MICHIGAN THIS WATCH INCLUDES 21 COUNTIES IN CENTRAL MICHIGAN CLARE GRATIOT ISABELLA MECOSTA MONTCALM OSCEOLA IN SOUTH CENTRAL MICHIGAN CALHOUN CLINTON EATON INGHAM IONIA JACKSON IN SOUTHWEST MICHIGAN ALLEGAN BARRY KALAMAZOO

Indiana Severe Thunderstorm Warning | Effective 05/18/2026 10:05

At 105 PM EDT/1205 PM CDT/, a severe thunderstorm was located over 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... Knox, North Judson, Hamlet, Medaryville, Koontz Lake, Oak Grove, Ripley, Monterey, Beardstown, Ober, English Lake, Vanmeter Park, Denham, Brems, Toto, Clarks, Winona, Bass Lake, San Pierre, and Grovertown. For your protection move to an interior room on the lowest floor of a

Indiana, Michigan Severe Thunderstorm Warning | Effective 05/18/2026 10:10

At 110 PM EDT/1210 PM CDT/, severe thunderstorms were located along a line extending from near Stevensville to near Three Oaks to near Hamlet, moving northeast at 60 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... La Porte, St. Joseph, Bridgman, New Buffalo, Three Oaks, Kingsford Heights, Stevensville, Shorewood-Tower Hill, Shorewood-Tower

Missouri Severe Thunderstorm Warning | Effective 05/18/2026 10:11

At 1211 PM CDT, a severe thunderstorm was located near Bolivar, moving northeast at 25 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Bolivar, Buffalo, Polk, Halfway, Louisburg, Windyville, Goodson, and Pumpkin Center. For your protection move to an interior room on the lowest floor of a building.
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