Weather Alerts For Plymouth Meeting, PA

# HEADLINE -------------------- FLOOD WATCH NOW IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH LATE TONIGHT # DETAILS -------------------- WHAT Flash flooding caused by excessive rainfall is possible. WHERE Portions of northern Delaware, including the following area, New Castle, New Jersey, including the following areas, Camden, Gloucester, Hunterdon, Mercer, Middlesex, Morris, Northwestern Burlington, Salem, Somerset 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 Flooding may occur in poor drainage and urban areas. ADDITIONAL DETAILS - Showers and thunderstorms with rainfall rates potentially of 1-2 inches per hour are expected across the watch area. In urban locations, this will be enough to trigger flash flooding. - http://www.weather.gov/safety/flood ISSUED AT Monday, June 22, 2026 at 2:16 AM EDT ISSUED BY National Weather Service Mount Holly NJ HEADER URGENT - IMMEDIATE BROADCAST REQUESTED | Flood Watch # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. # AREAS AFFECTED -------------------- Eastern Montgomery, Mercer, Philadelphia, Camden, Delaware, Eastern Chester, Gloucester, Hunterdon, Lower Bucks, Middlesex, Morris, New Castle, Northwestern Burlington, Salem, Somerset, Upper Bucks, Western Chester, Western Monmouth, Western Montgomery Including the cities of Norristown, Oxford, Perkasie, Philadelphia, Doylestown, Pottstown, Wilmington, Moorestown, Cherry Hill, Collegeville, Glassboro, Morristown, Lansdale, West Chester, Media, Somerville, Chalfont, Kennett Square, Pennsville, Mount Holly, New Brunswick, Honey Brook, Flemington, Morrisville, Trenton, Freehold, and Camden

There is a Slight Severe Storm Risk for your location. Continue reading for today's outlook from the National Weather Service's Storm Prediction Center. -------------------- National Severe Storm Outlook THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FROM PARTS OF THE SOUTHEAST TO THE MID-ATLANTIC...AND ACROSS PORTIONS OF THE NORTHERN/CENTRAL HIGH PLAINS SUMMARY Scattered severe thunderstorms capable of producing damaging winds and perhaps a couple of tornadoes should occur this afternoon and evening across portions of the Mid-Atlantic into the Southeast. Scattered severe thunderstorms are also expected across the northern/central High Plains, with large to very large hail the main threat. Mid Atlantic Relatively fast zonal flow is present today from the OH Valley into the Mid-Atlantic and Northeast US, with a shortwave trough evident over OH/MI. As this feature tracks eastward, it will push a surface cold front southward across the central Appalachians and into the Mid-Atlantic region. Considerable clouds are present ahead of the front from KY/WV into VA/PA/NJ, limiting destabilization and confidence in the details of where clusters of storms may form later today. However, given the relatively strong winds aloft and dewpoints in the 60s, it would seem likely that scattered strong to severe storms will occur, capable of locally damaging winds and perhaps a tornado. TN/MS/AL/GA The remnants of a severe overnight MCS are over AR/west TN/northern MS. This system has considerable mesoscale organization with an MCV noted over eastern AR. A very moist and unstable air mass is in place ahead of this system over northern MS/AL, where heating into the mid 80s will foster thunderstorm intensification this afternoon. Damaging winds are the main concern with these storms, but a low-level jet feature associated with the MCV could result in a few supercell structures and the risk of a tornado or two. Activity will track into north GA this evening. Refer to MD #1252 for further details. Central High Plains Similar to yesterday, low-clouds are slowly burning off across the High Plains of eastern CO and western SD/NE/KS, where moderate CAPE values will develop by mid-afternoon. Easterly/upslope flow will contribute to scattered thunderstorm development over eastern WY and southward along the DCVZ in CO. These storms will track into the CAPE axis, where favorable deep-layer shear will promote supercells capable of very large hail and a few tornadoes.