We will be impacted by the remnant low pressure system from Hurricanes Ida today. Expect extreme impacts from flash flooding, and significant impacts from river flooding and severe thunderstorms. Rain of 2-5+ inches is expected, along with the possibility of large hail and tornadoes.
Here is the event summary statement from the National Weather Service:
- The remnant low of Ida will pass through the region today and tonight. Excessive rainfall and severe thunderstorms, including tornadoes, are the main threats with this system.
- Widespread rainfall of 2 to 5 inches is forecast, with locally higher amounts possible, through predawn Thursday morning, with the highest amounts from the I-95 corridor north and west.
- Numerous instances of flash flooding are likely through predawn Thursday, with some events possibly significant, since the ground is saturated from recent heavy rain events.
- Widespread river flooding is likely to occur if storm total rainfall forecasts are realized. Roads and structures along particularly susceptible rivers, creeks, and streams may be impacted. Stay tuned to the latest forecasts and monitor for potential Flood Warnings.
- The locations and severity of flooding impacts will depend on the placement of the heaviest rain axis, along with the potential for excessive hourly rainfall rates.
- Strong to severe thunderstorms are anticipated, mainly across Delmarva, southern New Jersey, and southeast PA. The main threats from any thunderstorms that develop will be tornadoes and damaging wind gusts. The most likely time frame for this is this afternoon and evening.
Please review the current briefing for details
https://www.weather.gov/media/phi/current_briefing.pdf
Please stay safe and be prepared.
All Delco ARES Members: We will be activating a SKYWARN Net later this afternoon.