Immediate

Responsive action SHOULD be taken immediately

Pennsylvania Severe Flash Flood Warning | Effective 08/27/2026 18:41

FFWCTP The National Weather Service in State College has issued a * Flash Flood Warning for... Southeastern Dauphin County in south central Pennsylvania... Central Lebanon County in south central Pennsylvania... * Until 1245 AM EDT. * At 941 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly.

Montana Severe Severe Thunderstorm Warning | Effective 08/27/2026 18:42

SVRTFX The National Weather Service in Great Falls has issued a * Severe Thunderstorm Warning for... Northern Fergus County in central Montana... Blaine County in north central Montana... Southeastern Hill County in north central Montana... Northeastern Chouteau County in north central Montana... * Until 915 PM MDT. * At 742 PM MDT, severe thunderstorms were located along a line extending from St. Pierre to 21 miles south of Parker School to 14 miles west of Winifred, moving northeast at 40 mph.

Nebraska Severe Severe Thunderstorm Warning | Effective 08/27/2026 18:43

At 841 PM CDT, severe thunderstorms were located along a line extending from 11 miles southwest of Callaway to 6 miles east of Brady to 9 miles north of Wellfleet, moving south at 45 mph. THESE ARE DESTRUCTIVE STORMS FOR WESTERN DAWSON COUNTY. HAZARD...80 mph wind gusts and penny size hail. SOURCE...Automated Weather Station. At 836 PM CDT, the sensor at North Platte Regional Airport gusted to 75 MPH. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be heavily damaged. Expect

Nebraska Severe Severe Thunderstorm Warning | Effective 08/27/2026 18:43

SVRLBF The National Weather Service in North Platte has issued a * Severe Thunderstorm Warning for... Southwestern Arthur County in west central Nebraska... Northwestern Keith County in southwestern Nebraska... * Until 830 PM MDT. * At 743 PM MDT, a severe thunderstorm was located 8 miles southwest of Arthur, moving south at 20 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

Nebraska Severe Severe Thunderstorm Warning | Effective 08-27-2026 18:19

SVRLBF The National Weather Service in North Platte has issued a * Severe Thunderstorm Warning for... Lincoln County in southwestern Nebraska... Southwestern Custer County in central Nebraska... * Until 900 PM CDT. * At 819 PM CDT, severe thunderstorms were located along a line extending from 10 miles southwest of Arnold to near Maxwell to near Sutherland Reservoir State Recreation Area, moving south at 55 mph. THESE ARE DESTRUCTIVE STORMS FOR NORTH PLATTE. HAZARD...90 mph wind gusts and quarter size hail. SOURCE...Radar indicated.

Nebraska Severe Severe Thunderstorm Warning | Effective 08-27-2026 18:23

SVRGID The National Weather Service in Hastings has issued a * Severe Thunderstorm Warning for... Western Dawson County in south central Nebraska... * Until 900 PM CDT. * At 822 PM CDT, severe thunderstorms were located along a line extending from near Arnold to 12 miles north of Brady to near Lake Maloney State Recreation Area, moving south at 45 mph. THESE ARE DESTRUCTIVE STORMS FOR WESTERN DAWSON COUNTY INCLUDING THE GOTHENBURG AREA. HAZARD...80 mph wind gusts and penny size hail. SOURCE...Automated Weather Station.

Arizona Severe Flash Flood Warning | Effective 08/27/2026 18:15

FFWTWC The National Weather Service in Tucson has issued a * Flash Flood Warning for... Eastern Pima County in southeastern Arizona... * Until 915 PM MST. * At 615 PM MST, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 0.5 and 1.2 inches of rain have fallen. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas,

South Carolina Severe Flash Flood Warning | Effective 08/27/2026 18:19

FFWCAE The National Weather Service in Columbia has issued a * Flash Flood Warning for... Northwestern Lancaster County in central South Carolina... * Until 1215 AM EDT. * At 919 PM EDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 1.5 and 2.5 inches of rain have fallen. The expected rainfall rate is 2 to 3 inches in 1 hour. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing

Arizona Severe Flash Flood Warning | Effective 08/27/2026 18:19

FFWTWC The National Weather Service in Tucson has issued a * Flash Flood Warning for... Central Pima County in southeastern Arizona... * Until 915 PM MST. * At 619 PM MST, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 0.7 and 1.2 inches of rain have fallen. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar indicated. IMPACT...Flash flooding of small creeks and streams, urban areas,

Nebraska Severe Severe Thunderstorm Warning | Effective 08/27/2026 18:19

SVRLBF The National Weather Service in North Platte has issued a * Severe Thunderstorm Warning for... Lincoln County in southwestern Nebraska... Southwestern Custer County in central Nebraska... * Until 900 PM CDT. * At 819 PM CDT, severe thunderstorms were located along a line extending from 10 miles southwest of Arnold to near Maxwell to near Sutherland Reservoir State Recreation Area, moving south at 55 mph. THESE ARE DESTRUCTIVE STORMS FOR NORTH PLATTE. HAZARD...90 mph wind gusts and quarter size hail. SOURCE...Radar indicated.
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