Active Weather Alerts
Flash Flood Warning
Issued: 10:54 PM Aug. 13, 2025 – National Weather Service
The National Weather Service in Mount Holly has issued a * Flash Flood Warning for... Northwestern Burlington County in southern New Jersey... Southeastern Bucks County in southeastern Pennsylvania... Southeastern Montgomery County in southeastern Pennsylvania... Philadelphia County in southeastern Pennsylvania... * Until 1100 PM EDT. * At 654 PM EDT, Doppler radar and automated rain gauges indicated thunderstorms producing 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 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... Philadelphia, Bensalem, Willingboro, Florence, Burlington, Bristol, Mount Holly, Riverside, Palmyra, Jenkintown, Narberth and Bordentown. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around...don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. && FLASH FLOOD...RADAR AND GAUGE INDICATED; EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR
Flood Watch
Issued: 4:07 PM Aug. 13, 2025 – National Weather Service
...FLOOD WATCH IN EFFECT THROUGH LATE TONIGHT... * WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of northern Delaware, including the following area, New Castle, New Jersey, including the following areas, Camden, Gloucester, Mercer, Middlesex, Northwestern Burlington, Salem and Somerset, and southeast Pennsylvania, including the following areas, Delaware, Eastern Chester, Eastern Montgomery, Lower Bucks and Philadelphia. * WHEN...Through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - A high precipitable water airmass is moving over the Mid- Atlantic and will combine with a frontal system to produce highly efficient slow moving showers and thunderstorms. These storms will have the potential to produce 1-3 inches of rainfall per hour which, over the urban corridor, could result in flash flooding especially over impervious surfaces. If storms end up back building, the potential exists for up to 6 inches of storm total rainfall over very isolated areas. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. &&
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