FFWPHI The National Weather Service in Mount Holly has issued a * Flash Flood Warning for... Southeastern Morris County in northern New Jersey... * Until 1000 AM EDT. * At 554 AM EDT, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. Between 1 and 1.5 inches of rain have fallen. The expected rainfall rate is 1 to 2 inches in 1 hour. Additional rainfall amounts of 0.5 to 1 inch 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...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Morristown, Madison, Florham Park, East Hanover, Lincoln Park, Kinnelon, Chatham, Boonton, Butler, Rockaway and Morris Plains.
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.
* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of northern Delaware, including the following area, New Castle, New Jersey, including the following areas, Camden, Coastal Ocean, Eastern Monmouth, Gloucester, Hunterdon, Mercer, Middlesex, Morris, Northwestern Burlington, Ocean, Salem, Somerset, Southeastern Burlington and Western Monmouth, and southeast Pennsylvania, including the following areas, Delaware, Eastern Montgomery, Lower Bucks, Philadelphia, Upper Bucks and Western Montgomery. * WHEN...Until noon EDT today. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Showers and storms will continue to move through the region through the morning hours. Heavy rain in a short amount of time could result in excessive runoff. - http://www.weather.gov/safety/flood
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
AI Weather Forecast · Sunday, September 13, 2026
7 AM – 6 PM
Showers and thunderstorms before noon. Partly sunny, with a high near 81. North wind 1 to 5 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
6 PM – 6 AM
A slight chance of rain showers after 4am. Partly cloudy. Low around 64, with temperatures rising to around 66 overnight. West wind 2 to 9 mph. Chance of precipitation is 20%.