SEVERE WEATHER WARNING: Alerts Issued for PA.  More Info >>

Mcelhattan Warnings, Watches and Advisories

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SAFETY and DATA MESSAGE

Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Mcelhattan.

Use the Radar Maps link provided to understand the trajectory of a storm.

Flash Flood Warning

Area
Burlington, NJ; Mercer, NJ; Bucks, PA; Philadelphia, PA
Flash Flood Warning issued July 9 at 8:47PM EDT until July 10 at 1:00AM EDT by NWS Mount Holly NJ

FFWPHI The National Weather Service in Mount Holly has issued a * Flash Flood Warning for... Central Mercer County in central New Jersey... Northwestern Burlington County in southern New Jersey... Southeastern Bucks County in southeastern Pennsylvania... Northeastern Philadelphia County in southeastern Pennsylvania... * Until 100 AM EDT. * At 847 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Up to 0.5 inches of rain have fallen. The expected rainfall rate is 1 to 2 inches in 1 hour. 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... Philadelphia, Trenton, Bensalem, Ewing, Florence, Burlington, Bristol, Riverside, Bordentown, Pennington, Beverly and Yardley.

Flood Warning

Area
Lancaster, PA; York, PA
Flood Warning issued July 9 at 8:44PM EDT until July 9 at 11:15PM EDT by NWS State College PA

* WHAT...Flooding caused by excessive rainfall is occurring. * WHERE...A portion of central Pennsylvania, including the following counties, Lancaster and York. * WHEN...Until 1115 PM EDT. * IMPACTS...Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or occurring. * ADDITIONAL DETAILS... - At 844 PM EDT, local law enforcement reported flooding in the warned area. Between 2 and 3 inches of rain have fallen. - Flooding impacts will continue, but no additional rainfall is expected. - Some locations that will experience flooding include... Lancaster, York, Columbia, Millersville, Willow Street, Red Lion, Spry, Dallastown, East York, Stonybrook-Wilshire, Paradise, Salunga-Landisville, Shrewsbury, Grantley, Tyler Run-Queens Gate, Valley View, Strasburg, Mountville, Marietta and Stewartstown. - http://www.weather.gov/safety/flood

Flash Flood Warning

Area
New Castle, DE; Burlington, NJ; Camden, NJ; Gloucester, NJ; Salem, NJ; Delaware, PA
Flash Flood Warning issued July 9 at 8:32PM EDT until July 10 at 12:30AM EDT by NWS Mount Holly NJ

FFWPHI The National Weather Service in Mount Holly has issued a * Flash Flood Warning for... Central New Castle County in northern Delaware... Northwestern Burlington County in southern New Jersey... Northwestern Camden County in southern New Jersey... Northwestern Gloucester County in southern New Jersey... Northwestern Salem County in southern New Jersey... * Until 1230 AM EDT. * At 832 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 0.5 and 1 inch of rain has fallen. The expected rainfall rate is 1.5 to 2.5 inches in 1 hour. Additional rainfall amounts of 2 to 3 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... Camden, Gloucester City, Cherry Hill, Mount Laurel, Chester, Willingboro, Deptford, West Deptford, Pennsville and Bellmawr.

Flash Flood Warning

Area
New Castle, DE; Chester, PA; Delaware, PA; Montgomery, PA; Philadelphia, PA
Flash Flood Warning issued July 9 at 8:00PM EDT until July 10 at 12:00AM EDT by NWS Mount Holly NJ

FFWPHI The National Weather Service in Mount Holly has issued a * Flash Flood Warning for... Northern New Castle County in northern Delaware... Southeastern Chester County in southeastern Pennsylvania... Delaware County in southeastern Pennsylvania... Southeastern Montgomery County in southeastern Pennsylvania... Philadelphia County in southeastern Pennsylvania... * Until midnight EDT tonight. * At 800 PM EDT, trained weather spotters reported thunderstorms producing heavy rain with numerous roads flooded in southeast PA. Between 1.5 and 3 inches of rain have fallen. The expected rainfall rate is 1.5 to 3 inches in 1 hour. Additional rainfall amounts of 1 to 2 inches are possible in the warned area. Flash flooding is already occurring. HAZARD...Life threatening flash flooding caused by thunderstorms. SOURCE...Trained spotters reported. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets, and underpasses. * Some locations that may experience flash flooding include... Philadelphia, Camden, Wilmington, Newark, Chester, Pennsville, Yeadon, Carneys Point, Conshohocken, Palmyra, Folcroft and Swarthmore.

Flash Flood Warning

Area
Chester, PA
Flash Flood Warning issued July 9 at 7:48PM EDT until July 9 at 10:45PM EDT by NWS Mount Holly NJ

At 748 PM EDT, trained weather spotters reported thunderstorms producing heavy rain in West Grove with roads completely covered in water. Between 2 and 3 inches of rain have fallen. The expected rainfall rate is 1.5 to 2.5 inches in 1 hour. Additional rainfall amounts of 1 to 2.5 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...Trained spotters reported. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets, and underpasses. Some locations that may experience flash flooding include... West Chester, Coatesville, Westtown, Downingtown, Kennett Square, Oxford, Parkesburg, West Grove, Honey Brook, Cochranville, Marshallton and Landenberg.

Flash Flood Warning

Area
Chester, PA; Delaware, PA; Montgomery, PA; Philadelphia, PA
Flash Flood Warning issued July 9 at 7:47PM EDT until July 10 at 12:00AM EDT by NWS Mount Holly NJ

FFWPHI The National Weather Service in Mount Holly has issued a * Flash Flood Warning for... East Central Chester County in southeastern Pennsylvania... Central Delaware County in southeastern Pennsylvania... Southeastern Montgomery County in southeastern Pennsylvania... Philadelphia County in southeastern Pennsylvania... * Until midnight EDT tonight. * At 747 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 0.5 and 1 inch of rain has fallen. The expected rainfall rate is 1 to 3 inches in 1 hour. Additional rainfall amounts of 1 to 2 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... Philadelphia, Camden, Yeadon, Conshohocken, Palmyra, Folcroft, Jenkintown, Narberth, National Park, East Lansdowne, Rockledge and Bryn Athyn.

Flash Flood Warning

Area
New Castle, DE; Delaware, PA
Flash Flood Warning issued July 9 at 7:38PM EDT until July 9 at 11:45PM EDT by NWS Mount Holly NJ

FFWPHI The National Weather Service in Mount Holly has issued a * Flash Flood Warning for... Northern New Castle County in northern Delaware... Southeastern Delaware County in southeastern Pennsylvania... * Until 1145 PM EDT. * At 738 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 0.5 and 1 inch of rain has fallen. The expected rainfall rate is 1.5 to 3 inches in 1 hour. Additional rainfall amounts of 1 to 2 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... Wilmington, Newark, Chester, Yeadon, Folcroft, Swarthmore, New Castle, East Lansdowne, Newport, Wilmington Manor and Chester Township.

Flash Flood Warning

Area
New Castle, DE; Delaware, PA
Flash Flood Warning issued July 9 at 7:18PM EDT until July 9 at 11:15PM EDT by NWS Mount Holly NJ

FFWPHI The National Weather Service in Mount Holly has issued a * Flash Flood Warning for... Northwestern New Castle County in northern Delaware... Southwestern Delaware County in southeastern Pennsylvania... * Until 1115 PM EDT. * At 718 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 0.5 and 1 inch of rain has fallen. The expected rainfall rate is 1.5 to 2.5 inches in 1 hour. Additional rainfall amounts of 1 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... Wilmington, Newark, Chester, Swarthmore, Elsmere, Newport, Arden, Talleyville, Elam, Greenville, Concordville and Chelsea.

Flash Flood Warning

Area
York, PA
Flash Flood Warning issued July 9 at 7:17PM EDT until July 9 at 10:15PM EDT by NWS State College PA

FFWCTP The National Weather Service in State College has issued a * Flash Flood Warning for... Southwestern York County in south central Pennsylvania... * Until 1015 PM EDT. * At 717 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2 and 3 inches of rain have fallen. Additional rainfall amounts of 1 to 2 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...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... Hanover, Parkville, Shrewsbury, Codorus, Spring Grove, Glen Rock, Pennville, Jacobus, Railroad, Loganville, New Salem, Seven Valleys and Glenville.

Flash Flood Warning

Area
Lancaster, PA; York, PA
Flash Flood Warning issued July 9 at 6:40PM EDT until July 9 at 9:45PM EDT by NWS State College PA

FFWCTP The National Weather Service in State College has issued a * Flash Flood Warning for... Southeastern Lancaster County in south central Pennsylvania... Southeastern York County in south central Pennsylvania... * Until 945 PM EDT. * At 640 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Up to 1 inch of rain has fallen. Additional rainfall amounts of 1 to 2 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...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... Paradise, Quarryville, Gap, Delta, Wakefield, Holtwood, Sunnyburn, Susquehanna Trails, Intercourse, Christiana, Georgetown, Fawn Grove, Kirkwood, Little Britain, Buck, Peach Bottom and White Horse.

Severe Thunderstorm Watch

Area
Kent, DE; New Castle, DE; Sussex, DE; Caroline, MD; Kent, MD; Queen Anne's, MD; Talbot, MD; Atlantic, NJ; Burlington, NJ; Camden, NJ; Cape May, NJ; Cumberland, NJ; Gloucester, NJ; Hunterdon, NJ; Mercer, NJ; Middlesex, NJ; Monmouth, NJ; Ocean, NJ; Salem, NJ; Somerset, NJ; Warren, NJ; Berks, PA; Bucks, PA; Chester, PA; Delaware, PA; Lehigh, PA; Montgomery, PA; Northampton, PA; Philadelphia, PA
Severe Thunderstorm Watch issued July 9 at 5:33PM EDT until July 10 at 12:00AM EDT by NWS Mount Holly NJ

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 499 IN EFFECT UNTIL MIDNIGHT EDT TONIGHT 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 14 COUNTIES IN CENTRAL NEW JERSEY MERCER MONMOUTH IN NORTHERN NEW JERSEY HUNTERDON MIDDLESEX 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, 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

Area
Berks; Lehigh; Northampton; Delaware; Philadelphia; Western Chester; Eastern Chester; Western Montgomery; Eastern Montgomery; Upper Bucks; Lower Bucks
Flood Watch issued July 9 at 9:29AM EDT until July 10 at 2:00AM EDT by NWS Mount Holly NJ

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of east central and southeast Pennsylvania, including the following areas, in east central Pennsylvania, Berks, Lehigh and Northampton. In southeast Pennsylvania, Delaware, Eastern Chester, Eastern Montgomery, Lower Bucks, Philadelphia, Upper Bucks, Western Chester and Western Montgomery. * WHEN...From 5 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. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Another round of showers and thunderstorms are expected late this afternoon and into tonight which could produce heavy rain. With an already saturated surface, it will not take much rainfall to result in flooding. Rainfall rates of around 2 to 3 inches per hour are possible. - http://www.weather.gov/safety/flood

Flood Watch

Area
Adams; York; Lancaster
Flood Watch issued July 9 at 1:21AM EDT until July 9 at 11:00PM EDT by NWS State College PA

* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...A portion of central Pennsylvania, including the following counties, Adams, Lancaster and York. * WHEN...From this afternoon through this evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Scattered thunderstorms with locally heavy rain are forecast later this afternoon and evening. Hourly rainfall rates of 1 to 2 inches are likely within the strongest storms and could produce isolated instances of flash flooding in and near the watch area. - http://www.weather.gov/safety/flood

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Wed Jul 9th 2025, 8:45am PDT
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