Weather Alerts For Colwyn, PA

# HEADLINE -------------------- FLOOD WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE THURSDAY NIGHT # 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, Somerset, Sussex 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 Thursday afternoon through late Thursday night. IMPACTS Flooding may occur in poor drainage and urban areas. ADDITIONAL DETAILS - Showers and thunderstorms are expected to develop by mid-day Thursday. Some of these showers and thunderstorms are expected to produce very heavy rainfall. 1-2 inches of rain can be expected with localized amounts of 3-5 inches possible in the strongest storms. - http://www.weather.gov/safety/flood ISSUED AT Wednesday, August 26, 2026 at 2:31 PM 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 -------------------- Delaware, Camden, Eastern Chester, Eastern Montgomery, Gloucester, Hunterdon, Lower Bucks, Mercer, Middlesex, Morris, New Castle, Northwestern Burlington, Philadelphia, Somerset, Sussex, Upper Bucks, Western Chester, Western Monmouth, Western Montgomery Including the cities of Mount Holly, Wilmington, Honey Brook, Newton, Oxford, Somerville, Camden, Trenton, Norristown, Pottstown, Chalfont, Collegeville, West Chester, Perkasie, Media, Philadelphia, Moorestown, Freehold, Lansdale, Kennett Square, New Brunswick, Glassboro, Morrisville, Morristown, Cherry Hill, Doylestown, and Flemington

Pollen Index: 10.1 Pollen Level: high Predominant Pollen: Ragweed, Nettle and Chenopods. Based on past pollen counts and expected weather conditions, pollen levels for Thursday will be falling but will remain in the high range. This decrease is due to rising humidity, weakening winds and expected precipitation in the morning and afternoon which tends to wash pollen out of the air.