Immediate

Responsive action SHOULD be taken immediately

Nebraska Severe Severe Thunderstorm Warning | Effective 08/27/2026 16:30

At 529 PM MDT, severe thunderstorms were located along a line extending from 8 miles northwest of Mullen to near Whitman to 9 miles north of Hyannis, moving south at 45 mph. HAZARD...70 mph wind gusts and ping pong ball size hail. SOURCE...Radar indicated. This storm has a history of producing wind gusts in excess of 60 mph across southern Cherry County. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect

Pennsylvania Severe Flash Flood Warning | Effective 08/27/2026 16:32

At 732 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 3 and 4 inches of rain have fallen. Additional rainfall amounts up to 0.5 inches are possible in the warned area. 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, highways, streets and underpasses as well as other poor drainage and low-lying areas.

Colorado Severe Flash Flood Warning | Effective 08/27/2026 16:32

FFWPUB The National Weather Service in Pueblo has issued a * Flash Flood Warning for... Central Huerfano County in southeastern Colorado... * Until 830 PM MDT. * At 532 PM MDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 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,

Montana Severe Severe Thunderstorm Warning | Effective 08/27/2026 16:36

At 536 PM MDT, a severe thunderstorm was located 10 miles south of Great Falls, moving northeast at 35 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Great Falls, Belt, Black Eagle, Raynesford, Portage, Sluice Boxes State Park, Eden, Malmstrom Afb, Stockett, Tracy, Vaughn, First Peoples Buffalo Jump State Park, Centerville, Armington, Ulm, and Sand Coulee.

Pennsylvania Severe Flash Flood Warning | Effective 08/27/2026 16:37

At 737 PM EDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 2 and 4 inches of rain have fallen. Additional rainfall amounts up to 1 inch are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar and automated gauges. IMPACT...Life threatening flash flooding of creeks and streams, urban

Colorado Severe Flash Flood Warning | Effective 08/27/2026 16:37

At 537 PM MDT, Doppler radar indicates thunderstorms that produced heavy rain over the Middle Aspen Acres Burn Scar as ended. Between 1 and 1.5 inches of rain has fallen. Flooding impacts will continue, but no additional rainfall is expected. Flash flooding is ongoing or expected. Excessive rainfall over the burn scar will result in debris flow moving through the North Saint Charles, South Creek, Squirrel Creek, Middle Creek, and North Creek Drainages. The debris flow can

Pennsylvania Severe Severe Thunderstorm Warning | Effective 08/27/2026 16:39

At 738 PM EDT, a severe thunderstorm was located over Brickerville, moving east at 15 mph. HAZARD...60 mph wind gusts and half dollar size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Ephrata, Lititz, Manheim, Akron, Denver, Rothsville, Brickerville, Schaefferstown, Kleinfeltersville, Reinholds, Schoeneck, and Penryn. This includes The Pennsylvania Turnpike from mile markers 271 to 283.

Pennsylvania Severe Severe Thunderstorm Warning | Effective 08/27/2026 16:40

At 740 PM EDT, a severe thunderstorm was located over Muhlenberg, or 12 miles west of Wilkes-Barre, moving east at 25 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... Muhlenberg, Nanticoke, Slocum, Shickshinny, Nuangola, Sweet Valley, Alden, Glen Lyon, Lynwood, and Lee. For your protection move to an interior room on the lowest floor of a building.

Pennsylvania Severe Severe Thunderstorm Warning | Effective 08/27/2026 16:40

At 740 PM EDT, a severe thunderstorm was located over Biggertown, moving east at 20 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... Jamison City, Waller, Fairmount Spgs, Biggertown, Ricketts Glen State Park, Central, Benton, and Stillwater. Stay inside a well built structure and keep away from windows. Torrential rainfall is occurring with this storm, and may lead to

Montana Severe Severe Thunderstorm Warning | Effective 08/27/2026 16:42

At 542 PM MDT, a severe thunderstorm was located 15 miles northeast of Ballantine, moving northeast at 45 mph. HAZARD...60 mph wind gusts and small hail. SOURCE...Weather station reported. At 5:30 PM MDT, a 58 mph wind gust was reported in Ballantine, Montana. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Ballantine, Worden, Huntley, Shepherd and Pompeys Pillar. This does not include the City of Billings. Seek shelter inside a well-built structure and stay away from
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