Active Weather Alerts
Severe Thunderstorm Warning
Issued: 5:56 PM Jul. 31, 2025 – National Weather Service
The National Weather Service in Mount Holly NJ has issued a * Severe Thunderstorm Warning for... South central Hunterdon County in northwestern New Jersey... West central Mercer County in central New Jersey... Central Montgomery County in southeastern Pennsylvania... Central Bucks County in southeastern Pennsylvania... * Until 300 PM EDT. * At 155 PM EDT, a severe thunderstorm was located over Lansdale, or 18 miles northwest of Philadelphia, moving east at 30 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Damage to roofs, siding, trees, and power lines is possible. * Locations impacted include... Lansdale, West Norriton, East Norriton, Doylestown, Hatboro, Souderton, Ambler, Chalfont, Hatfield, New Hope, Newtown, Dublin, Langhorne, Bryn Athyn, Ivyland, Stockton, Fricks, Richboro, Langhorn, and Washington Crossing. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && HAIL THREAT...RADAR INDICATED; MAX HAIL SIZE...<.75 IN; WIND THREAT...RADAR INDICATED; MAX WIND GUST...60 MPH
Severe Thunderstorm Warning
Issued: 5:33 PM Jul. 31, 2025 – National Weather Service
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM EDT FOR CENTRAL MONTGOMERY...NORTHEASTERN CHESTER AND NORTHERN DELAWARE COUNTIES... At 133 PM EDT, a severe thunderstorm was located over Royersford, or 15 miles north of West Chester, moving east at 15 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Damage to roofs, siding, trees, and power lines is possible. Locations impacted include... Norristown, Pottstown, Phoenixville, West Norriton, East Norriton, Collegeville, Royersford, Trappe, Schwenksville, Pughtown, Bryn Mawr, Radnor Township, Spring Mount, Lionville-Marchwood, Valley Forge, Paoli, Chester Springs, Lionville, King Of Prussia, and Skippack. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && HAIL THREAT...RADAR INDICATED; MAX HAIL SIZE...<.75 IN; WIND THREAT...RADAR INDICATED; MAX WIND GUST...60 MPH
Flash Flood Warning
Issued: 5:27 PM Jul. 31, 2025 – National Weather Service
The National Weather Service in Mount Holly has issued a * Flash Flood Warning for... Southeastern Berks County in eastern Pennsylvania... Northeastern Chester County in southeastern Pennsylvania... Montgomery County in southeastern Pennsylvania... * Until 530 PM EDT. * At 127 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2 inches of rain have fallen. Additional rainfall amounts of 1.5 to 2.5 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. 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... West Chester, Norristown, Pottstown, Phoenixville, Lansdale, West Norriton, East Norriton, Westtown, Downingtown, Conshohocken, Souderton and Ambler. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around...don't drown when encountering flooded roads. Most flood deaths occur in vehicles. 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. && FLASH FLOOD...RADAR INDICATED
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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