New Jersey, Pennsylvania Severe Flash Flood Warning | Effective 08/02/2026 20:20

Headline: 
Flash Flood Warning issued August 2 at 11:20PM EDT until August 3 at 3:30AM EDT by NWS Mount Holly NJ
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
August 2, 2026 - 8:20pm
Expires: 
August 3, 2026 - 12:30am
Description: 
FFWPHI The National Weather Service in Mount Holly has issued a * Flash Flood Warning for... Southwestern Warren County in northwestern New Jersey... East Central Berks County in eastern Pennsylvania... Eastern Lehigh County in eastern Pennsylvania... Northampton County in eastern Pennsylvania... Northwestern Bucks County in southeastern Pennsylvania... Northwestern Montgomery County in southeastern Pennsylvania... * Until 330 AM EDT. * At 1120 PM EDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 0.5 and 1.5 inches of rain have fallen. The expected rainfall rate is 1 to 2 inches in 1 hour. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar and automated gauges. 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, Easton, Bethlehem, Forks, Emmaus, Northampton, Quakertown, Wilson, Hellertown, Nazareth, East Greenville and Wind Gap. This includes the following highways... Northeast Extension between mile markers 32 and 60. Interstate 78 in Pennsylvania between mile markers 54 and 76.
Instruction: 
Turn around...don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Area Description: 
Warren, NJ; Berks, PA; Bucks, PA; Lehigh, PA; Montgomery, PA; Northampton, PA
Forcast Office: 
NWS Mount Holly NJ
Sender: 
w-nws.webmaster@noaa.gov