Summer's missing rain? It's on the way
The sound of rain we've been missing for most of the summer, the water absent from the creeks, the gutter-washing torrents we've not had for so long? It's all on the way this evening. Time to watch the summer's trash come down the Jones Falls.
The National Weather Service has issued a Flash Flood Watch for most of Maryland, from Frederick to St. Mary's county. It reads, in part:
"A POTENT AREA OF LOW PRESSURE WILL BRING RAINFALL TO CENTRAL
VIRGINIA AS WELL AS THE POTOMAC HIGHLANDS OF WEST VIRGINIA AND
VIRGINIA THROUGH TONIGHT INTO TUESDAY MORNING. RAINFALL AMOUNTS
BETWEEN 2 AND 4 INCHES ARE EXPECTED ACROSS MOST LOCATIONS WITH
ISOLATED AMOUNTS UP TO 5 INCHES IN BANDS OF HEAVIER RAIN AND
" FLASH FLOOD GUIDANCE REMAINS HIGH DUE TO THE RECENT DRY
WEATHER. HOWEVER...MOST OF THE RAIN IS EXPECTED TONIGHT INTO
TUESDAY MORNING AHEAD OF A COLD FRONT. THEREFORE...HIGH AMOUNTS
OF RAIN IN A SHORT PERIOD OF TIME MAY CAUSE SMALL STREAMS AND
CREEKS TO QUICKLY RISE OUT OF THEIR BANKS"
That doesn't sound like it includes Maryland, but it does. The rain may be light at first, but forecasters do expect periods of heavy rain overnight and early Tuesday. A half- to three-quarters of an inch is possible at BWI.
UPDATE, 6:45 p.m.: The rain forecast for BWI now put the possible totals at 1 to 2 inches.
There's also a Coastal Flood Advisory and a Coastal Flood Watch up for the Western Shore of Maryland. The approaching low is already raising water levels, and easterly winds drive more water ashore at the times of high tide.
"THE WATER LEVEL AT BALTIMORE WILL REACH 3.5 TO 4 FEET...REFERENCED
TO MEAN LOWER LOW WATER. ANNAPOLIS WILL REACH 3.5 FEET MLLW. IN
BOTH LOCATIONS...THIS IS AROUND CRITICAL LEVELS FOR MINOR FLOODING."
And that won't be the end of it. Another storm, a tropical system expected to move up the coast at mid-week, could bring us another round of heavy rain Wednesday into Thursday. Here's the Hazardous Weather Outlook with details.