WINTER WEATHER ADVISORY
Issue Date: 411 AM EST WED DEC 09 2009
Expiration: 700 AM EST WED DEC 09 2009 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST THIS
MORNING...
A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 AM EST THIS
MORNING.
PRECIPITATION HAS CHANGED PREDOMINANTLY TO RAIN AS TEMPERATURES
WARM. HOWEVER...MESONET OBSERVATIONS AT HIGHER ELEVATIONS CONTINUE
TO SHOW TEMPERATURES JUST BELOW FREEZING. LIGHT ICE ACCUMULATIONS
WILL CONTINUE TO BE POSSIBLE THROUGH EARLY THIS MORNING BEFORE
TEMPERATURES CLIMB ABOVE FREEZING...MAINLY AT HIGHER ELEVATIONS
IN THE CATOCTINS AND EXTREME NORTHERN MARYLAND.
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.
&&
$$
HAZARDOUS WEATHER OUTLOOK
Issue Date: 333 PM EST TUE DEC 08 2009
Expiration: 600 AM EST WED DEC 09 2009 Expires:200912091100;;
FLUS41 KLWX 082032 AAB
HWOLWX
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
332 PM EST TUE DEC 8 2009
MDZ003>005-009-010-501-502-VAZ021-025>031-036>042-050-051-
WVZ050>055-501>504-091100-
WASHINGTON-FREDERICK MD-CARROLL-MONTGOMERY-HOWARD-
EXTREME WESTERN ALLEGANY-CENTRAL AND EASTERN ALLEGANY-HIGHLAND-
AUGUSTA-ROCKINGHAM-SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE-
NELSON-ALBEMARLE-GREENE-MADISON-RAPPAHANNOCK-FAUQUIER-LOUDOUN-
ORANGE-CULPEPER-HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-PENDLETON-
HARDY-WESTERN GRANT-EASTERN GRANT-WESTERN MINERAL-EASTERN MINERAL-
332 PM EST TUE DEC 8 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN WEST VIRGINIA...
NORTHERN AND CENTRAL VIRGINIA...AND CENTRAL AND WESTERN MARYLAND
WITH THE EXCEPTION OF GARRETT COUNTY.
.DAY ONE...TONIGHT
A WINTER STORM WARNING IS IN EFFECT TONIGHT FOR THE POTOMAC
HIGHLANDS. PRECIPITATION WILL BEGIN AS A PERIOD OF SLEET OR SNOW
BUT CHANGE TO FREEZING RAIN BEFORE MIDNIGHT. ICE ACCUMULATION OF
AROUND ONE QUARTER INCH IS EXPECTED. PLEASE REFER TO THE WSWLWX PRODUCT FOR
FURTHER INFORMATION.
A WINTER WEATHER ADVISORY IS IN EFFECT TONIGHT FOR THE SHENANDOAH
VALLEY...NELSON COUNTY VIRGINIA...WASHINGTON COUNTY MARYLAND...AND PORTIONS
OF THE EASTERN WEST VIRGINIA PANHANDLE. A PERIOD OF FREEZING RAIN
WILL CREATE ICE ACCUMULATION OF AROUND ONE TENTH INCH. PLEASE
REFER TO THE WSWLWX PRODUCT FOR FURTHER INFORMATION.
A FLOOD WATCH IS IN EFFECT TONIGHT FOR AREAS EAST OF THE BLUE
RIDGE AS WELL AS THE SHENANDOAH VALLEY...EASTERN WEST VIRGINIA
PANHANDLE...AND WASHINGTON COUNTY MARYLAND. MODERATE TO HEAVY RAINFALL
MAY LEAD TO FLOODING OF CREEKS...STREAMS AND POOR DRAINAGE AREAS
LATE TONIGHT.
WIND GUSTS TO 45 MPH ARE POSSIBLE TONIGHT OVER THE HIGHER
ELEVATIONS OF THE POTOMAC HIGHLANDS.
.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
A FLOOD WATCH REMAINS IN EFFECT THROUGH MID MORNING WEDNESDAY. THE
POSSIBILITY OF FLOODING OF CREEKS...STREAMS AND POOR DRAINAGE
AREAS WILL CONTINUE INTO WEDNESDAY MORNING BEFORE RAIN DIMINISHES
IN INTENSITY LATE WEDNESDAY MORNING.
WIND GUSTS TO 45 MPH ARE POSSIBLE WEDNESDAY AFTERNOON AND EVENING
ACROSS AREAS WEST OF THE BLUE RIDGE.
WIND CHILL READINGS BELOW ZERO ARE POSSIBLE ACROSS AREAS WEST OF
THE BLUE RIDGE THURSDAY NIGHT.
A LOW PRESSURE HAS THE POTENTIAL TO PRODUCE ACCUMULATING SNOW ON
SATURDAY INTO SUNDAY.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT ANTICIPATED THROUGH TONIGHT...BUT PLEASE
RELAY ANY REPORTS OF WINTRY WEATHER OR FLOODING TO THE NATIONAL
WEATHER SERVICE.
$$
FLOOD WATCH
Issue Date: 106 PM EST TUE DEC 08 2009
Expiration: 1000 AM EST WED DEC 09 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.
* FROM LATE TONIGHT THROUGH WEDNESDAY MORNING
* 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.
$$
SBK
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