* WHAT...Flash 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, Sussex, Warren and Western Monmouth, and Pennsylvania, including the following areas, Berks, Carbon, Delaware, Eastern Chester, Eastern Montgomery, Lehigh, Lower Bucks, Monroe, Northampton, Philadelphia, Upper Bucks, Western Chester and Western Montgomery. * WHEN...From 10 AM EDT this morning through late tonight. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Multiple rounds of heavy showers and thunderstorms are expected for Saturday into Saturday night. Storms will be capable of producing rainfall amounts of 2 to 3 inches within a period of just one to two hours leading to flash flooding. - http://www.weather.gov/safety/flood
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
The New Jersey Department of Environmental Protection has issued a code orange air quality alert Saturday for North Central New Jersey. A code orange air quality alert means that air pollution concentrations within the region may become unhealthy for sensitive groups. Sensitive groups include children...people suffering from asthma... heart disease or other lung diseases...and the elderly. The effects of air pollution can be minimized by avoiding strenuous activity or exercise outdoors. For more information on ground-level ozone and fine particles...visit http://www.state.nj.us/dep/
AI Weather Forecast · Saturday, July 18, 2026
7 AM – 6 PM
Smoke and a slight chance of rain showers before 8am, then smoke and showers and thunderstorms likely between 8am and 11am, then smoke and showers and thunderstorms. Some of the storms could be severe. Mostly cloudy, with a high near 80. Southwest wind 5 to 12 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
6 PM – 6 AM
Showers and thunderstorms before 3am. Some of the storms could be severe. Mostly cloudy, with a low around 70. West wind around 10 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.