Pennsylvania Severe Flash Flood Warning | Effective 07/28/2026 19:53

Headline: 
Flash Flood Warning issued July 28 at 10:53PM EDT until July 29 at 12:00AM EDT by NWS Mount Holly NJ
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
July 28, 2026 - 7:53pm
Expires: 
July 28, 2026 - 9:00pm
Description: 
FFWPHI The National Weather Service in Mount Holly has extended the * Flash Flood Warning for... Southeastern Lehigh County in eastern Pennsylvania... South Central Northampton County in eastern Pennsylvania... West Central Bucks County in southeastern Pennsylvania... * Until midnight EDT tonight. * At 1053 PM EDT, Doppler radar indicated earlier thunderstorms produced heavy rain across the warned area. Between 3 and 5 inches of rain have fallen. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flooding of small creeks and streams, urban areas, highways, streets, and underpasses as well as other drainage and low lying areas. * Some locations that may experience flash flooding include... Allentown, Bethlehem, Emmaus, Quakertown, Zionsville, Lehigh University, Ancient Oaks, Fountain Hill, Macungie, Coopersburg, Alburtis and Richlandtown. This includes the following highways... Northeast Extension between mile markers 40 and 55. Interstate 78 in Pennsylvania between mile markers 56 and 63...and between mile markers 65 and 66.
Instruction: 
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.
Area Description: 
Bucks, PA; Lehigh, PA; Northampton, PA
Forcast Office: 
NWS Mount Holly NJ
Sender: 
w-nws.webmaster@noaa.gov