Active Weather Alerts
Flash Flood Warning
Issued: 6:09 PM Jul. 31, 2025 – National Weather Service
The National Weather Service in Mount Holly has issued a * Flash Flood Warning for... Northeastern New Castle County in northern Delaware... Southwestern Delaware County in southeastern Pennsylvania... * Until 615 PM EDT. * At 209 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 1.5 inches of rain have fallen. The expected rainfall rate is 1.5 to 3 inches in 1 hour. Additional rainfall amounts of 1 to 1.5 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets, and underpasses. * Some locations that may experience flash flooding include... Chester, Swarthmore, Arden, Chelsea, Concordville, Lima, Chester Township, Elam, Gradyville, Talleyville, Nether Providence Township and Greenville. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around...don't drown when encountering flooded roads. Most flood deaths occur in vehicles. && FLASH FLOOD...RADAR INDICATED; FLASH FLOOD DAMAGE THREAT...CONSIDERABLE; EXPECTED RAINFALL RATE...1.5-3 INCHES IN 1 HOUR
Severe Thunderstorm Warning
Issued: 6:05 PM Jul. 31, 2025 – National Weather Service
The National Weather Service in Mount Holly NJ has issued a * Severe Thunderstorm Warning for... Northeastern New Castle County in northern Delaware... Northwestern Salem County in southern New Jersey... Northwestern Gloucester County in southern New Jersey... Southeastern Montgomery County in southeastern Pennsylvania... Southeastern Chester County in southeastern Pennsylvania... Southwestern Philadelphia County in southeastern Pennsylvania... Delaware County in southeastern Pennsylvania... * Until 245 PM EDT. * At 204 PM EDT, a severe thunderstorm was located over Arden, or near Wilmington, moving east at 15 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Damage to roofs, siding, trees, and power lines is possible. * Locations impacted include... Philadelphia, Wilmington, Chester, West Deptford, Yeadon, Westtown, Woodbury, Carneys Point, Folcroft, Swarthmore, Paulsboro, Penns Grove, Narberth, Woodbury Heights, National Park, East Lansdowne, Swedesboro, Arden, Darby Township, and Cheyney. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && HAIL THREAT...RADAR INDICATED; MAX HAIL SIZE...0.75 IN; WIND THREAT...RADAR INDICATED; MAX WIND GUST...60 MPH
Severe Thunderstorm Watch
Issued: 5:18 PM Jul. 31, 2025 – National Weather Service
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 562 IN EFFECT UNTIL 8 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN DELAWARE THIS WATCH INCLUDES 3 COUNTIES IN CENTRAL DELAWARE KENT IN NORTHERN DELAWARE NEW CASTLE IN SOUTHERN DELAWARE SUSSEX IN MARYLAND THIS WATCH INCLUDES 4 COUNTIES IN NORTHEAST MARYLAND CAROLINE KENT QUEEN ANNE'S TALBOT IN NEW JERSEY THIS WATCH INCLUDES 15 COUNTIES IN CENTRAL NEW JERSEY MERCER MONMOUTH IN NORTHERN NEW JERSEY HUNTERDON MIDDLESEX MORRIS SOMERSET WARREN IN SOUTHERN NEW JERSEY ATLANTIC BURLINGTON CAMDEN CAPE MAY CUMBERLAND GLOUCESTER OCEAN SALEM IN PENNSYLVANIA THIS WATCH INCLUDES 8 COUNTIES IN EAST CENTRAL PENNSYLVANIA BERKS LEHIGH NORTHAMPTON IN SOUTHEAST PENNSYLVANIA BUCKS CHESTER DELAWARE MONTGOMERY PHILADELPHIA THIS INCLUDES THE CITIES OF ALLENTOWN, ATLANTIC CITY, BETHLEHEM, BLAIRSTOWN, CAMDEN, CENTREVILLE, CHERRY HILL, CHESTERTOWN, DENTON, DEPTFORD, DOVER, DOYLESTOWN, EAST BRUNSWICK, EASTON, EASTON, EDISON, FLEMINGTON, FREEHOLD, GEORGETOWN, GLASSBORO, HAMMONTON, MEDIA, MILLVILLE, MOORESTOWN, MORRISTOWN, MOUNT HOLLY, NEW BRUNSWICK, NORRISTOWN, NORTH BRUNSWICK TOWNSHIP, OCEAN CITY, PENNSVILLE, PERTH AMBOY, PHILADELPHIA, READING, SAYREVILLE, SOMERSET, TOMS RIVER, TRENTON, WEST CHESTER, AND WILMINGTON.
Flood Watch
Issued: 10:58 AM Jul. 31, 2025 – National Weather Service
...FLOOD WATCH REMAINS IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH LATE TONIGHT... * 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, Gloucester, Hunterdon, Mercer, Middlesex, Northwestern Burlington, Salem, Somerset, Southeastern Burlington and Western Monmouth, and southeast Pennsylvania, including the following areas, Delaware, Eastern Chester, Eastern Montgomery, Lower Bucks, Philadelphia, Upper Bucks, Western Chester and Western Montgomery. * WHEN...From 2 PM EDT this afternoon 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. Storm drains and ditches may become clogged with debris. * ADDITIONAL DETAILS... - A very warm and humid airmass will be in place ahead of an approaching cold front, which will push across the region through tonight. Widespread showers and thunderstorms are expected to develop this afternoon into tonight, which will be capable of producing heavy rainfall. Forecast rainfall amounts of 1 to 3 inches can generally be expected, with localized amounts of 5 to 7 inches or greater possible. Rainfall rates may exceed 2 inches per hour. Significant flash flooding is possible. - 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. Have multiple reliable ways to receive Flash Flood Warnings. If you encounter a flooded road, Turn Around, Don't Drown. &&
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