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VALLEY: Flood Watch – MOUNTAINS: Winter Weather Tues Night / Wed AM : 12.8.09 :

[ 5 ] December 8, 2009 |

Nelson County, Virginia

-A FLOOD WATCH is in Effect for Nelson County late tonight into Wednesday morning.

-A WINTER WEATHER ADVISORY is in effect for the mountainous portions of Western Nelson County Tuesday night until 7 AM Wednesday morning.

Scroll for specific details on each weather event.

FLOOD WATCH
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
106 PM EST TUE DEC 8 2009

FLOOD WATCH NOW IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY
MORNING…

THE FLOOD WATCH IS NOW IN EFFECT FOR

PORTIONS OF MARYLAND…THE DISTRICT OF COLUMBIA AND VIRGINIA…
INCLUDING THE FOLLOWING AREAS…IN MARYLAND…ANNE ARUNDEL…
CALVERT…CARROLL…CHARLES…FREDERICK MD…HARFORD…
HOWARD…MONTGOMERY…NORTHERN BALTIMORE…PRINCE GEORGES…
SOUTHERN BALTIMORE AND ST. MARYS. THE DISTRICT OF COLUMBIA. IN
VIRGINIA…ALBEMARLE…ARLINGTON/FALLS CHURCH/ALEXANDRIA…
CULPEPER…FAIRFAX…FAUQUIER…GREENE…KING GEORGE…
LOUDOUN…MADISON…NELSON…ORANGE…PRINCE
WILLIAM/MANASSAS/MANASSAS PARK…RAPPAHANNOCK…SPOTSYLVANIA AND
STAFFORD.

* A STRONG LOW PRESSURE WILL AFFECT THE AREA TONIGHT. ALTHOUGH
PRECIPITATION MAY BEGIN AS A WINTRY MIX THIS EVENING…WARMER
TEMPERATURES ALOFT WILL CHANGE THE PRECIPITATION TO RAIN
TONIGHT…WITH AN EXTENDED PERIOD OF MODERATE TO HEAVY RAIN
EXPECTED. WIDESPREAD RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE
ANTICIPATED…WITH SOME TOTALS OF UP TO 3 INCHES POSSIBLE…
PARTICULARLY EAST OF INTERSTATE 95 THE RAIN WILL FURTHER MELT
THE EXISTING SNOW ON THE GROUND IN SOME AREAS… ADDING TO THE
RUNOFF. RAINFALL OF THIS AMOUNT WILL BE CAPABLE OF CAUSING
FLOODING OF URBAN AREAS…SMALL STREAMS…AND OTHER POOR
DRAINAGE AND LYING AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON
CURRENT FORECASTS.

YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE
FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE
PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.

* * * * * * * * *
WINTER WEATHER ADVISORY

URGENT – WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
933 PM EST TUE DEC 8 2009

MDZ003-VAZ028-036-WVZ051-052-091045-
/O.CON.KLWX.WW.Y.0027.000000T0000Z-091209T1200Z/
WASHINGTON-FREDERICK VA-NELSON-MORGAN-BERKELEY-
INCLUDING THE CITIES OF…HAGERSTOWN…WINCHESTER…MARTINSBURG
933 PM EST TUE DEC 8 2009

…WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST
WEDNESDAY…

SNOW AND SLEET WILL MOVE FROM SOUTH TO NORTH ACROSS PORTIONS OF
WESTERN MARYLAND…THE EASTERN WEST VIRGINIA PANHANDLE AND FREDERICK
COUNTY VIRGINIA THROUGH MIDNIGHT. SNOW AND SLEET ACCUMULATIONS OF
1 TO 2 INCHES CAN BE EXPECTED.

PRECIPITATION WILL CHANGEOVER TO SLEET AND FREEZING RAIN AFTER
MIDNIGHT…THEN SWITCH TO PLAIN RAIN BY SUNRISE. UP TO A TENTH OF
AN INCH OF ICE ACCUMULATION FROM FREEZING RAIN MAY RESULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW…SLEET AND
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES…AND USE CAUTION WHILE
DRIVING.

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Comments (5)

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  1. John Taylor says:

    I came up Wintergreen Mountain from Nellysford around 6 pm. At this time, the 32 degree zone extends from the Wintergreen gatehouse (2100′) to above Fortunes Ridge (2,900′???) — warmer below and colder above. VDOT has a lot of abrasives and I presume chemicals on 664 above Beech Grove but I’m afraid those will soon wash off. Wintergreen has a LOT of abrasives down on its roads.

    Currently at 3300′ (elevation of the Mountain Inn) it is still raining hard with occasional wintry something mixed in. Temp is 29 degrees. The parking lots are slick because the gravel has become ice coated. The occasional sleet helps walking traction. At this point the roads up are good.

  2. John Taylor says:

    It has changed to fairly strong sleet/wintry mix now up here at 3300′ on “Wintergreen Mountain”. It’s very, very foggy up here.

  3. Tommy says:

    Oh yea, John I believe it! Lots of sleet here in the valley now and temps has dropped to 35.6° at 7:15 PM. Up your way our TWNF station shows 27.5° with a dew point of 25.7° which means you still have a while of freezing rain left. Once it begins rising, you know the warmer air is beginning to filter in. Send us a pic if you get one!

  4. Tommy,

    Thanks for keeping up with the weather. CVEC is ready to respond to outages. Members should call 800-367-2832 if the ice arrives and creates power outages. Use the automated system so the outage system can pinpoint the location of the problem and get the crews to where they can do the most good as soon as possible. Good Job on keeping people up to date!

  5. Tommy says:

    Thanks Greg! Looks okay in the valley and lower elevations … so far. Up above it’s pretty cold with frz rain. Our Devils’ Knob station showing 26.5° and slowly dropping in the past hour: http://www.wunderground.com/weatherstation/WXDailyHistory.asp?ID=KVAWINTE1 Temps will slowly being ro rise in the pre dawn hours, but it will be slow to occur. May even hear a clap of thunder as the front eases close by! – Hope you guys have a quiet night!

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