Severe · Flash Flood WarningActive alert
Flash Flood Warning issued September 2 at 11:26PM EDT until September 3
Affecting Northumberland, PA; Snyder, PA; Union, PA
In effect until: Sep 3, 2026, 7:30 AM
Northumberland, PA; Snyder, PA; Union, PA
Likely impact across 3 counties in PA; effects through 7:30 AM.
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding.
Read the original bulletin (official text)
FFWCTP The National Weather Service in State College has issued a * Flash Flood Warning for... Northumberland County in central Pennsylvania... Snyder County in central Pennsylvania... Southeastern Union County in central Pennsylvania... * Until 330 AM EDT. * At 1126 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 3 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, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Sunbury, Shamokin, Mount Carmel, Lewisburg, Selinsgrove, Northumberland, Kulpmont, Winfield, Elysburg, Fairview-Ferndale, Trevorton, Shamokin Dam, Linntown, Marshallton, Hummels Wharf, Middleburg, McClure, Montandon and Kreamer.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™