Flood Watch

A slow-moving front will interact with a very humid airmass in place to result in multiple rounds of showers and thunderstorms this afternoon and evening.

* WHAT...Flash flooding caused by excessive rainfall continues to be possible.

* WHERE...Allegany and Garrett Counties in Maryland, and Mineral County in West Virginia.

* WHEN...Through late tonight.

* IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Low-water crossings may be flooded.

* ADDITIONAL DETAILS... - High humidity coupled with a slow-moving front is expected to result in multiple rounds of showers and thunderstorms this afternoon and evening. Localized rainfall rates of up to 2 inches per hour, with isolated totals of 3 to 6 inches are possible. - Please visit www.weather.gov/safety/flood for flood safety and preparedness information.