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Active official alertUpdated

Flash Flood Warning for Bucks, PA; Montgomery, PA

Official alert fields

What you need to know

Applies to
Bucks, Montgomery
Effective
Ends or expires
Official severity
Severe
Official urgency
Immediate
Official certainty
Likely

What is happening

At 509 AM EDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 1.5 and 3 inches of rain have fallen. Flooding impacts will continue, but no additional rainfall is expected. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash...

What the bulletin says to do

Turn around...don't drown when encountering flooded roads. Most flood deaths occur in vehicles.

Full official description

Bulletin details

At 509 AM EDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 1.5 and 3 inches of rain have fallen. Flooding impacts will continue, but no additional rainfall is expected. 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, Norristown, Phoenixville, Lansdale, West Norriton, East Norriton, Doylestown, Conshohocken, Hatboro, Ambler, Collegeville and Narberth. This includes the following highways... Interstate 476 in Pennsylvania between mile markers 15 and 19. Interstate 76 in Pennsylvania between mile markers 327 and 337. Northeast Extension between mile markers 21 and 31. Pennsylvania Turnpike between mile markers 327 and 346.

Official geometry where available

Alert boundary

Lifecycle record

Official revisions

3 captured
  1. Update

    Flash Flood Warning issued August 3 at 5:09AM EDT until August 3 at 7:00AM EDT by NWS Mount Holly NJ

    Official revision
  2. Update

    Flash Flood Warning issued August 3 at 4:20AM EDT until August 3 at 7:00AM EDT by NWS Mount Holly NJ

    Official revision
  3. Alert

    Flash Flood Warning issued August 3 at 3:01AM EDT until August 3 at 7:00AM EDT by NWS Mount Holly NJ

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Mount Holly NJ. This page reorganizes official fields and does not add a forecast or expand the affected area.

CAP status
Actual
Message type
Update
Last collected
Methodology and corrections