WIND ADVISORY
Issue Date: 402 AM EST WED DEC 09 2009
Expiration: 1000 PM EST WED DEC 09 2009

...WIND ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 10 PM EST
THIS EVENING...
THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A
WIND ADVISORY...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO
10 PM EST THIS EVENING.
VERY STRONG LOW-LEVEL WINDS WILL DEVELOP LATE THIS MORNING AS DRY
AIR ALOFT MOVES INTO THE REGION. GUSTS ABOVE 45 MPH WILL BE
POSSIBLE AT HIGH ELEVATIONS...ESPECIALLY ACROSS RIDGE TOPS THROUGH
THIS EVENING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WIND ADVISORY MEANS THAT WIND GUSTS IN EXCESS OF 45 MPH ARE
EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...
ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION.
$$

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.
$$

WINTER WEATHER ADVISORY
Issue Date: 327 PM EST TUE DEC 08 2009
Expiration: 700 AM EST WED DEC 09 2009

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 PM THIS
EVENING TO 7 AM EST WEDNESDAY...
A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 7 PM THIS
EVENING TO 7 AM EST WEDNESDAY.
WIDESPREAD RAIN AND POCKETS OF FREEZING RAIN ARE EXPECTED ACROSS
THE EAST SLOPES OF THE POTOMAC HIGHLANDS AND CENTRAL AND NORTHERN
SHENANDOAH VALLEY BETWEEN 7 PM AND 9 PM THIS EVENING.
PRECIPITATION IS EXPECTED TO CHANGE OVER TO ALL RAIN BEFORE
MIDNIGHT.
TEMPERATURES THIS EVENING WILL HOVER AROUND FREEZING AT TIMES IN
SOME LOCATIONS BEFORE MIDNIGHT...SO RAIN THAT FALLS IN THOSE
AREAS WILL FREEZE ON UNTREATED SURFACES...GIVING UP TO 0.1 INCHES
OF ICE ACCUMULATION.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF FREEZING RAIN
WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING.
$$

FLOOD WATCH
Issue Date: 106 PM EST TUE DEC 08 2009
Expiration: 1000 AM EST WED DEC 09 2009

...FLOOD WATCH IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY
MORNING...
THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS EXPANDED
THE
* FLOOD WATCH TO INCLUDE PORTIONS OF NORTH CENTRAL MARYLAND...
VIRGINIA AND NORTHEAST WEST VIRGINIA...INCLUDING THE FOLLOWING
AREAS...IN NORTH CENTRAL MARYLAND...WASHINGTON. IN VIRGINIA...
AUGUSTA...CLARKE...FREDERICK VA...PAGE...ROCKINGHAM...
SHENANDOAH AND WARREN. IN NORTHEAST WEST VIRGINIA...BERKELEY...
JEFFERSON AND MORGAN.
* 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. 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 STORM WATCH
Issue Date: 216 PM EST MON DEC 07 2009
Expiration: 700 AM EST WED DEC 09 2009

...AN EXTENDED PERIOD OF FREEZING RAIN IS POSSIBLE TUESDAY NIGHT
INTO WEDNESDAY MORNING...
MDZ003>005-009-501-502-VAZ021-025>031-036>042-WVZ050>055-501>504-
080400-
/O.NEW.KLWX.WS.A.0007.091209T0000Z-091209T1200Z/
WASHINGTON-FREDERICK MD-CARROLL-MONTGOMERY-
EXTREME WESTERN ALLEGANY-CENTRAL AND EASTERN ALLEGANY-HIGHLAND-
AUGUSTA-ROCKINGHAM-SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE-
NELSON-ALBEMARLE-GREENE-MADISON-RAPPAHANNOCK-FAUQUIER-LOUDOUN-
HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-PENDLETON-HARDY-WESTERN GRANT-
EASTERN GRANT-WESTERN MINERAL-EASTERN MINERAL-
INCLUDING THE CITIES OF...HAGERSTOWN...FREDERICK...WESTMINSTER...
GAITHERSBURG...FROSTBURG...CUMBERLAND...STAUNTON...WAYNESBORO...
HARRISONBURG...WINCHESTER...FRONT ROYAL...CHARLOTTESVILLE...
WASHINGTON...LEESBURG...MARTINSBURG...CHARLES TOWN...BAYARD...
PETERSBURG...EMORYVILLE...HARTMANSVILLE...KEYSER...FORT ASHBY
216 PM EST MON DEC 7 2009
...WINTER STORM WATCH IN EFFECT FROM TUESDAY EVENING THROUGH
WEDNESDAY MORNING...
THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A
WINTER STORM WATCH...WHICH IS IN EFFECT FROM TUESDAY EVENING
THROUGH WEDNESDAY MORNING.
PRECIPITATION IS EXPECTED TO BEGIN TUESDAY AFTERNOON IN THE
CENTRAL SHENANDOAH HIGHLANDS AS A PERIOD OF SNOW...MOVING NORTH TO
THE PENNSYLVANIA BORDER EARLY TUESDAY EVENING. PRECIPITATION IS
EXPECTED MIX WITH SLEET...BECOME HEAVIER TUESDAY EVENING AND
CHANGE TO RAIN. HOWEVER TEMPERATURES AT THE SURFACE WILL STAY
BELOW FREEZING...SO RAIN THAT FALLS WILL FREEZE ON IMPACT.
FREEZING RAIN IS EXPECTED TO CONTINUE THROUGHOUT TUESDAY NIGHT
BEFORE WARMER AIR MOVES IN WEDNESDAY MORNING.
ONE QUARTER INCH OF FREEZING RAIN ACCUMULATION IS POSSIBLE. THE
MOST LIKELY PLACE TO RECEIVE THAT MUCH WOULD BE IN THE COLDER
LOW LYING AREAS OF THE SHENANDOAH VALLEY AND ALLEGHENY HIGHLANDS.
A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW...SLEET...OR ICE ACCUMULATIONS THAT MAY IMPACT TRAVEL.
CONTINUE TO MONITOR THE LATEST FORECASTS.
$$
AW/SK