The National Weather Service in Mount Holly, NJ, has issued a Flash Flood Watch for Southeastern Pennsylvania region, including Berks County from Wednesday morning beginning at 8am, through Thursday morning at 11am.
Showers, with thunderstorms also possible after 9am. Some of the storms could produce heavy rainfall. High near 72. East wind 5 to 10 mph.
Wednesday Night, showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 63. Northeast wind around 15 mph, with gusts as high as 30 mph.
The remnants of Hurricane Ida will pass through the region Wednesday through early Thursday morning. Periods of heavy rain and scattered thunderstorms associated with this low will result in widespread 4 to 6 inches of rain, with locally higher amounts likely exceeding 6 inches by Thursday morning. Combined with wet antecedent conditions, this will lead to numerous instances of flash flooding, some of which may be significant.
Flooding of creeks, streams, urban areas, and poor drainage areas is likely in the areas of heaviest rain. Water is likely to cover the roads, especially in low-lying areas. Moderate to major flooding is possible along some main stem rivers, and roads and structures near these rivers may be flooded.
A Flash Flood Watch means that there is the potential for flash flooding which can be life-threatening. Heavy rain is expected to occur over a short period of time. Rapidly rising flood waters may quickly inundate roadways and areas of poor drainage. Streams and creeks could leave their banks, flooding nearby properties.
Monitor the forecast, especially if you live in a location that is prone to flooding. Be prepared to take action if a flash flood warning is issued for your area.