Immediate

Responsive action SHOULD be taken immediately

South Dakota Severe Severe Thunderstorm Warning | Effective 09-01-2026 17:53

SVRFSD The National Weather Service in Sioux Falls has issued a * Severe Thunderstorm Warning for... Southern Bon Homme County in southeastern South Dakota... Southwestern Yankton County in southeastern South Dakota... * Until 845 PM CDT. * At 752 PM CDT, severe thunderstorms were located along a line extending from near Springfield to near Niobrara, moving east at 35 mph. THESE ARE DESTRUCTIVE STORMS FOR Springfield. HAZARD...Baseball size hail and 60 mph wind gusts. SOURCE...Public.

Nebraska Severe Severe Thunderstorm Warning | Effective 09-01-2026 17:59

SVROAX The National Weather Service in Omaha has issued a * Severe Thunderstorm Warning for... Northeastern Knox County in northeastern Nebraska... Northwestern Cedar County in northeastern Nebraska... * Until 830 PM CDT. * At 759 PM CDT, severe thunderstorms were located along a line extending from 6 miles east of Santee to near Center, moving southeast at 35 mph. THESE ARE DESTRUCTIVE STORMS FOR NORTHERN KNOX COUNTY. HAZARD...Baseball size hail and 70 mph wind gusts. SOURCE...Trained weather spotters observed two inch hail near

Delaware, New Jersey, Pennsylvania Severe Severe Thunderstorm Warning | Effective 09/01/2026 17:31

At 831 PM EDT, severe thunderstorms were located along a line extending from Penns Grove to near New Castle to Appleton, moving southeast at 45 mph. THESE ARE DESTRUCTIVE STORMS FOR New Castle County and western Salem County! HAZARD...80 mph wind gusts and quarter size hail. SOURCE...Emergency management. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be heavily damaged. Expect considerable damage to roofs, windows, and vehicles.

South Dakota Severe Severe Thunderstorm Warning | Effective 09/01/2026 17:33

At 732 PM CDT, severe thunderstorms were located along a line extending from near Avon to Niobrara, moving east at 45 mph. HAZARD...Golf 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... Springfield. For your protection move to an interior room on the lowest floor of a building.

Arizona, California Severe Severe Thunderstorm Warning | Effective 09/01/2026 17:37

SVRPSR The National Weather Service in Phoenix has issued a * Severe Thunderstorm Warning for... Southwestern La Paz County in west central Arizona... West central Yuma County in southwestern Arizona... Southeastern Imperial County in southeastern California... * Until 615 PM MST/615 PM PDT/. * At 536 PM MST/536 PM PDT/, a severe thunderstorm was located 11 miles north of Andrade, or 17 miles west of Martinez Lake, moving northeast at 30 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated.

Maryland Severe Severe Thunderstorm Warning | Effective 09/01/2026 17:38

At 837 PM EDT, a severe thunderstorm was located over Barksdale, or over Newark, moving southeast at 30 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Damaging winds will cause some trees and large branches to fall. This could injure those outdoors, as well as damage homes and vehicles. Roadways may become blocked by downed trees. Localized power outages are possible. Unsecured light objects may become projectiles. Locations impacted include...

Nebraska Severe Severe Thunderstorm Warning | Effective 09/01/2026 17:43

SVROAX The National Weather Service in Omaha has issued a * Severe Thunderstorm Warning for... Northwestern Antelope County in northeastern Nebraska... Knox County in northeastern Nebraska... * Until 830 PM CDT. * At 742 PM CDT, severe thunderstorms were located along a line extending from 6 miles west of Springfield to 6 miles northwest of Verdigre to 9 miles north of Page, moving east at 25 mph. HAZARD...Golf ball size hail and 60 mph wind gusts. SOURCE...Trained weather spotters reported quarter sized hail west

Delaware, New Jersey, Pennsylvania Severe Flash Flood Warning | Effective 09/01/2026 17:44

FFWPHI The National Weather Service in Mount Holly has issued a * Flash Flood Warning for... Northern New Castle County in northern Delaware... Northwestern Gloucester County in southern New Jersey... Northwestern Salem County in southern New Jersey... Chester County in southeastern Pennsylvania... Delaware County in southeastern Pennsylvania... * Until 1245 AM EDT. * At 844 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain

Delaware, New Jersey, Pennsylvania Severe Severe Thunderstorm Warning | Effective 09-01-2026 17:20

At 819 PM EDT, severe thunderstorms were located along a line extending from Talleyville to Hockessin to near Oxford, moving southeast at 35 mph. THESE ARE DESTRUCTIVE STORMS FOR southern Chester County and northern Delaware, including the Wilmington area. This storm is producing damaging winds across Chester County. HAZARD...80 mph wind gusts and quarter size hail. SOURCE...Emergency management. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be heavily damaged. Expect
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