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Active official alertUpdated

Flash Flood Warning for Hunterdon, NJ; Morris, NJ; Somerset, NJ

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What is happening

At 1244 AM EDT, local law enforcement reported thunderstorms producing heavy rain in Flooding on Route 46 east of NJ15 in Dover. Between 1 and 2 inches of rain have fallen. The expected rainfall rate is 0.5 to 1 inch in 1 hour. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash...

What the bulletin says to do

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. Be aware of your surroundings and do not drive on flooded roads. 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.

Full official description

Bulletin details

At 1244 AM EDT, local law enforcement reported thunderstorms producing heavy rain in Flooding on Route 46 east of NJ15 in Dover. Between 1 and 2 inches of rain have fallen. The expected rainfall rate is 0.5 to 1 inch in 1 hour. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is already occurring. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Law enforcement 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... Morristown, Bridgewater, Dover, Madison, Florham Park, East Hanover, Chatham, Boonton, Wharton, Rockaway, Morris Plains and Mount Arlington. This includes the following highways... Interstate 287 in New Jersey between mile markers 17 and 46. Interstate 78 in New Jersey between mile markers 17 and 38. Interstate 80 in New Jersey between mile markers 29 and 48.

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Official revisions

2 captured
  1. Update

    Flash Flood Warning issued August 6 at 12:44AM EDT until August 6 at 3:45AM EDT by NWS Mount Holly NJ

    Official revision
  2. Alert

    Flash Flood Warning issued August 5 at 11:40PM EDT until August 6 at 3:45AM 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.

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