Statement as of 4:38 AM EST on January 24, 2010
... Flash Flood Watch now in effect from 3 PM EST this afternoon
through Monday morning...
The Flash Flood Watch is now in effect for
* portions of Maryland... Virginia and northeast West Virginia.
* From 3 PM EST this afternoon through Monday morning
* a cold front will approach the area this afternoon and
tonight... bringing moderate to heavy rainfall. Rainfall amounts
of 1 to 2 inches are expected through early Monday
morning... with locally higher amounts in excess of 2 inches
* Flash flood guidance is low across the area. As little as one
half of an inch to one inch of rainfall in one hour or one to
one and a half inches of rainfall in three hours may cause
streams and creeks to overflow their banks.
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.