Active Weather Alerts
Flash Flood Warning
Issued: 2:35 AM Aug. 6, 2026 – National Weather Service
The National Weather Service in Mount Holly has issued a * Flash Flood Warning for... South Central Bucks County in southeastern Pennsylvania... Northeastern Delaware County in southeastern Pennsylvania... Southeastern Montgomery County in southeastern Pennsylvania... Northern Philadelphia County in southeastern Pennsylvania... * Until 245 AM EDT. * At 1035 PM EDT, Doppler radar indicated heavy rain across the warned area. Between 0.5 and 1 inch of rain has 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 heavy rain. 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... Philadelphia, Jenkintown, Narberth, Rockledge, Abington, Langhorne, Bryn Athyn, Willow Grove, Germantown, Chestnut Hill, Northeast Philadelphia and Roxborough. This includes the following highways... Interstate 476 in Pennsylvania between mile markers 9 and 11. Interstate 76 in Pennsylvania between mile markers 335 and 340. Pennsylvania Turnpike between mile markers 344 and 352. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely. && FLASH FLOOD...RADAR INDICATED; EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR
Flash Flood Warning
Issued: 1:30 AM Aug. 6, 2026 – National Weather Service
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 115 AM EDT THURSDAY FOR CENTRAL BUCKS, NORTHEASTERN CHESTER, NORTH CENTRAL DELAWARE AND CENTRAL MONTGOMERY COUNTIES... At 930 PM EDT, the public reported thunderstorms producing heavy rain across portions of the warned area. Roadway flooding has been reported in the Phoenixville area. This heavy rain in a short period of time is also moving across central Montgomery County. Between 0.5 and 1 inch of rain has fallen in portions of the warned area. The expected rainfall rate is 1 to 2.5 inches in 1 hour. Flash flooding is already occurring. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Public reported. 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... Philadelphia, Norristown, Phoenixville, Lansdale, West Norriton, East Norriton, Perkasie, Doylestown, Conshohocken, Hatboro, Souderton and Ambler. This includes the following highways... Interstate 476 in Pennsylvania between mile markers 12 and 19. Interstate 76 in Pennsylvania between mile markers 327 and 334. Northeast Extension between mile markers 21 and 36. Pennsylvania Turnpike between mile markers 317 and 344. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && FLASH FLOOD...OBSERVED; EXPECTED RAINFALL RATE...1-2.5 INCHES IN 1 HOUR
Heat Advisory
Issued: 5:50 PM Aug. 5, 2026 – National Weather Service
...HEAT ADVISORY IN EFFECT FROM 10 AM THURSDAY TO 8 PM EDT FRIDAY... * WHAT...Heat index values up to 100 to 104 expected. * WHERE...Portions of northern Delaware, central, northern, and southern New Jersey, and southeast Pennsylvania. * WHEN...From 10 AM Thursday to 8 PM EDT Friday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. &&
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