A cold front is likely to bring slow-moving thunderstorms and downpours to the D.C. area later today.
The National Weather Service has issued a Flash Flood Watch, which takes effect at noon, cautioning of the possibility of 2-4 inches of rain falling in a short period of time. Such rainfall could cause flash flooding, as happened nearly two years ago.
More from NWS:
…FLASH FLOOD WATCH IN EFFECT FROM NOON EDT TODAY THROUGH THIS EVENING…
The National Weather Service in Sterling Virginia has issued a
* Flash Flood Watch for portions of DC…Maryland…Virginia and West Virginia…
* From Noon EDT today through this evening
* A cold front will drop southward into the area today. This front will become the focus for slow moving thunderstorms this afternoon and evening. Because of the slow motion and ample moisture in the atmosphere, storms may drop 2 to 4 inches of rain a short period of time, resulting in flash flooding.
* Heavy rainfall in a short amount of time can result in rapid rises of water in streams, creeks, and urban areas.
A Flash Flood Watch means that conditions may develop that lead to Flash Flooding. Flash Flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.