Alert archive / West Virginia / Winter Storm Warnings in 2012

Winter Storm Warning 9, NWS Baltimore/Washington

December 25, 20126 counties in West Virginia; Allegany County, Maryland; Highland County, Virginia

NWS Baltimore/Washington issued this winter storm warning at Dec 25, 2012, 2:29 PM EST for 6 counties in West Virginia; Allegany County, Maryland; Highland County, Virginia. It took effect at Dec 26, 2012, 1:00 AM EST. It was in force for 25 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Dec 25, 2012, 2:29 PM EST (19:29 UTC)
In effect from
Dec 26, 2012, 1:00 AM EST
Expired
Dec 27, 2012, 1:48 AM EST
In force
25 hr
Issued by
NWS Baltimore/Washington

Counties Allegany County, MD, Highland County, VA, Grant County, WV, Hampshire County, WV, Hardy County, WV, Mineral County, WV, Morgan County, WV, Pendleton County, WV

The radar

The Sterling radar (KLWX), 126 km from the middle of the area, began a volume at 19:30 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 7.5 hours before the alert went out and 134 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 2012-12-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 2012-12-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -68 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
796 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
-68 m²/s²
0-3 km storm-relative helicity
-3 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

899 
WWUS41 KLWX 251929
WSWLWX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
229 PM EST TUE DEC 25 2012

VAZ503-WVZ505-260330-
/O.UPG.KLWX.WS.A.0007.121226T0600Z-121227T1100Z/
/O.NEW.KLWX.WS.W.0009.121226T0600Z-121227T1100Z/
WESTERN HIGHLAND-WESTERN PENDLETON-
INCLUDING THE CITIES OF...HIGHTOWN...CIRCLEVILLE
229 PM EST TUE DEC 25 2012

...WINTER STORM WARNING IN EFFECT FROM 1 AM WEDNESDAY TO 6 AM EST
THURSDAY...

THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HAS
ISSUED A WINTER STORM WARNING FOR A WINTRY MIX...WHICH
IS IN EFFECT FROM 1 AM WEDNESDAY TO 6 AM EST THURSDAY. THE WINTER
STORM WATCH IS NO LONGER IN EFFECT.

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING RAIN.

* ACCUMULATIONS...SNOW AND SLEET ACCUMULATIONS OF 5 TO 8 INCHES.
  ICE ACCUMULATIONS UP TO ONE-TENTH INCH.

* TIMING...SNOW AND SLEET WILL BEGIN TO OVERSPREAD THE REGION
  OVERNIGHT AND LAST THROUGH WEDNESDAY NIGHT. THE HEAVIEST
  PRECIPITATION WILL OCCUR WEDNESDAY AFTERNOON. FREEZING RAIN MAY
  MIX IN WITH THE SNOW AND SLEET WEDNESDAY EVENING.

* TEMPERATURES...LOWS IN THE MIDDLE 20S. HIGHS ON WEDNESDAY IN THE
  LOWER 30S. 

* WINDS...EAST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A
  WINTRY MIX OF SNOW...SLEET AND ICE. THE WEIGHT OF THE SNOW AND
  ICE ACCUMULATIONS COULD KNOCK DOWN SOME TREE LIMBS AND POWER
  LINES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.



&&

$$

MDZ501-WVZ501-503-260330-
/O.UPG.KLWX.WS.A.0007.121226T0600Z-121227T1100Z/
/O.NEW.KLWX.WS.W.0009.121226T0800Z-121227T1100Z/
EXTREME WESTERN ALLEGANY-WESTERN GRANT-WESTERN MINERAL-
INCLUDING THE CITIES OF...FROSTBURG...BAYARD...MOUNT STORM...
ELK GARDEN
229 PM EST TUE DEC 25 2012

...WINTER STORM WARNING IN EFFECT FROM 3 AM WEDNESDAY TO 6 AM EST
THURSDAY...

THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HAS
ISSUED A WINTER STORM WARNING FOR A WINTRY MIX OF SNOW...SLEET AND
FREEZING RAIN...WHICH IS IN EFFECT FROM 3 AM WEDNESDAY TO 6 AM EST
THURSDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

* PRECIPITATION TYPE...A MIXTURE OF SNOW...SLEET AND FREEZING RAIN.

* ACCUMULATIONS...SNOW AND SLEET ACCUMULATIONS OF 5 TO 8 INCHES.
  ICE ACCUMULATIONS UP TO ONE-TENTH INCH.

* TIMING...SNOW AND SLEET WILL BEGIN TO OVERSPREAD THE REGION
  AROUND 3 AM AND LAST THROUGH WEDNESDAY NIGHT. THE HEAVIEST
  PRECIPITATION WILL OCCUR WEDNESDAY AFTERNOON. FREEZING RAIN MAY
  MIX IN WITH THE SNOW AND SLEET WEDNESDAY EVENING.

* TEMPERATURES...LOWS IN THE LOWER TO MIDDLE 20S. HIGHS IN THE
  LOWER 30S. 

* WINDS...NORTHEAST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A
  WINTRY MIX OF SNOW...SLEET AND ICE. THE WEIGHT OF THE SNOW AND
  ICE ACCUMULATIONS COULD KNOCK DOWN SOME TREE LIMBS AND POWER
  LINES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

VAZ025-026-036>038-504-WVZ506-260330-
/O.UPG.KLWX.WS.A.0007.121226T0600Z-121227T1100Z/
/O.NEW.KLWX.WW.Y.0020.121226T0600Z-121227T1100Z/
AUGUSTA-ROCKINGHAM-NELSON-ALBEMARLE-GREENE-EASTERN HIGHLAND-
EASTERN PENDLETON-
INCLUDING THE CITIES OF...STAUNTON...WAYNESBORO...HARRISONBURG...
CHARLOTTESVILLE...MONTEREY...FRANKLIN
229 PM EST TUE DEC 25 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 1 AM WEDNESDAY TO 6 AM
EST THURSDAY...

THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HAS
ISSUED A WINTER WEATHER ADVISORY FOR A MIX OF SNOW...SLEET AND
FREEZING RAIN... WHICH IS IN EFFECT FROM 1 AM WEDNESDAY TO 6 AM EST
THURSDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING RAIN.

* ACCUMULATIONS...SNOW AND SLEET ACCUMULATIONS OF 1 TO 3 INCHES.
  ICE ACCUMULATIONS OF ONE TO TWO TENTHS OF AN INCH.

* TIMING...SNOW AND SLEET WILL BEGIN TO OVERSPREAD THE REGION
  OVERNIGHT AND WEDNESDAY MORNING. THE SNOW AND SLEET MIXTURE IS
  EXPECTED TO TRANSITION TO ALL FREEZING RAIN BY THE LATE
  WEDNESDAY AFTERNOON AND END BY EARLY THURSDAY MORNING.

* TEMPERATURES...LOWS IN THE MIDDLE TO UPPER 20S. HIGHS IN THE
  LOWER 30S. 

* WINDS...NORTHEAST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A WINTRY MIX
  OF SNOW AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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



&&

$$

MDZ003-004-502-VAZ027>031-039-040-042-501-WVZ050>053-055-502-504-
260330-
/O.UPG.KLWX.WS.A.0007.121226T0600Z-121227T1100Z/
/O.NEW.KLWX.WW.Y.0020.121226T0800Z-121227T1100Z/
WASHINGTON-FREDERICK MD-CENTRAL AND EASTERN ALLEGANY-SHENANDOAH-
FREDERICK VA-PAGE-WARREN-CLARKE-MADISON-RAPPAHANNOCK-LOUDOUN-
NORTHERN FAUQUIER-HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-HARDY-
EASTERN GRANT-EASTERN MINERAL-
INCLUDING THE CITIES OF...HAGERSTOWN...FREDERICK...CUMBERLAND...
WINCHESTER...FRONT ROYAL...WASHINGTON...LEESBURG...WARRENTON...
MARTINSBURG...CHARLES TOWN...MOOREFIELD...PETERSBURG...KEYSER...
FORT ASHBY
229 PM EST TUE DEC 25 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM WEDNESDAY TO 6 AM
EST THURSDAY...

THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HAS
ISSUED A WINTER WEATHER ADVISORY FOR A WINTRY MIX OF SNOW...SLEET
AND FREEZING RAIN... WHICH IS IN EFFECT FROM 3 AM WEDNESDAY TO 6 AM
EST THURSDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT.

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING RAIN.

* ACCUMULATIONS...SNOW AND SLEET ACCUMULATION OF AROUND AN INCH IN
  THE FAR WESTERN SUBURBS OF THE METRO AREAS TO 3 INCHES ACROSS
  WEST-CENTRAL MARYLAND AND THE EASTERN PANHANDLE OF WEST
  VIRGINIA. ICE ACCUMULATIONS RANGE BETWEEN A COUPLE HUNDREDTHS OF
  AN INCH ACROSS THE HIGH ELEVATIONS OF THE FAR WESTERN SUBURBS...TO
  UP TO TWO TENTHS OF AN INCH ACROSS WEST-CENTRAL MARYLAND AND THE
  EASTERN WEST VIRGINIA PANHANDLE.

* TIMING...SNOW AND SLEET WILL BEGIN TO OVERSPREAD THE REGION
  AROUND 3 AM AND CONTINUE INTO WEDNESDAY MORNING. THE SNOW AND
  SLEET MIXTURE IS EXPECTED TO TRANSITION TO ALL FREEZING RAIN BY
  WEDNESDAY AFTERNOON ALONG THE HIGHER ELEVATIONS AND END BY
  EARLY THURSDAY MORNING. THE HEAVIEST PRECIPITATION IS EXPECTED
  DURING THE AFTERNOON ON WEDNESDAY.

* TEMPERATURES...LOWS IN THE UPPER 20S WITH HIGHS IN THE LOWER 30S.

* WINDS...NORTHEAST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A WINTRY MIX
  OF SNOW AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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


&&

$$

MDZ005-260330-
/O.NEW.KLWX.WW.Y.0020.121226T0800Z-121227T1100Z/
CARROLL-
INCLUDING THE CITY OF...WESTMINSTER
229 PM EST TUE DEC 25 2012

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM WEDNESDAY TO 6 AM
EST THURSDAY...

THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HAS
ISSUED A WINTER WEATHER ADVISORY FOR A WINTRY MIX OF SNOW...SLEET
AND FREEZING RAIN... WHICH IS IN EFFECT FROM 3 AM WEDNESDAY TO 6 AM
EST THURSDAY.

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING RAIN.

* ACCUMULATIONS...SNOW AND SLEET ACCUMULATIONS UP TO 1 INCH. ICE
  ACCUMULATIONS UNDER ONE-TENTH INCH ACROSS THE HIGHER ELEVATIONS
  NEAR THE MASON-DIXON LINE.

* TIMING...SNOW AND SLEET WILL BEGIN TO OVERSPREAD THE REGION
  AROUND 3 AM AND LAST THROUGH WEDNESDAY NIGHT. THE HEAVIEST
  PRECIPITATION IS EXPECTED DURING THE AFTERNOON ON WEDNESDAY.

* TEMPERATURES...LOWS IN THE UPPER 20S. HIGHS WEDNESDAY IN THE
  LOWER TO MIDDLE 30S. 

* WINDS...NORTHEAST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A
  WINTRY MIX OF SNOW AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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


&&

$$
10 follow-up statements
344 
WWUS41 KLWX 260329
WSWLWX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1029 PM EST TUE DEC 25 2012

VAZ503-WVZ505-261130-
/O.CON.KLWX.WS.W.0009.121226T0600Z-121227T1100Z/
WESTERN HIGHLAND-WESTERN PENDLETON-
INCLUDING THE CITIES OF...HIGHTOWN...CIRCLEVILLE
1029 PM EST TUE DEC 25 2012

...WINTER STORM WARNING REMAINS IN EFFECT FROM 1 AM WEDNESDAY TO
6 AM EST THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...6 TO 10 INCHES OF SNOW AND SLEET. UP TO ONE
  TENTH INCH OF ICE.

* TIMING...LIGHT SNOW WILL BEGIN TO OVERSPREAD THE REGION
  OVERNIGHT...BECOME STEADY DURING THE EARLY MORNING...AND LAST
  THROUGH WEDNESDAY NIGHT. THE HEAVIEST PRECIPITATION WILL OCCUR
  IN THE AFTERNOON. FREEZING RAIN MAY MIX IN WITH SNOW AND SLEET
  IN THE EVENING.

* TEMPERATURES...IN THE MID AND UPPER 20S.

* WINDS...NORTHEAST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A
  WINTRY MIX OF SNOW...SLEET AND ICE. THE WEIGHT OF THE SNOW AND
  ICE ACCUMULATIONS COULD KNOCK DOWN TREE LIMBS AND POWER LINES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

MDZ501-WVZ501-503-261130-
/O.CON.KLWX.WS.W.0009.121226T0800Z-121227T1100Z/
EXTREME WESTERN ALLEGANY-WESTERN GRANT-WESTERN MINERAL-
INCLUDING THE CITIES OF...FROSTBURG...BAYARD...MOUNT STORM...
ELK GARDEN
1029 PM EST TUE DEC 25 2012

...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 AM WEDNESDAY TO
6 AM EST THURSDAY...

* PRECIPITATION TYPE...A MIXTURE OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...6 TO 10 INCHES OF SNOW AND SLEET. UP TO ONE
  TENTH INCH OF ICE.

* TIMING...LIGHT SNOW WILL BEGIN TO OVERSPREAD THE REGION FROM
  SOUTH TO NORTH BEFORE DAYBREAK...BECOME STEADY DURING THE MID
  MORNING...AND LAST THROUGH WEDNESDAY NIGHT. THE HEAVIEST
  PRECIPITATION WILL OCCUR IN THE AFTERNOON. FREEZING RAIN MAY MIX
  IN WITH SNOW AND SLEET IN THE EVENING.

* TEMPERATURES...IN THE MID 20S TO NEAR 30.

* WINDS...NORTHEAST 10 TO 20 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE. THE WEIGHT OF THE SNOW AND 
  ICE ACCUMULATIONS COULD KNOCK DOWN SOME TREE LIMBS AND POWER 
  LINES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

VAZ025-026-036>038-504-WVZ506-261130-
/O.CON.KLWX.WW.Y.0020.121226T0600Z-121227T1100Z/
AUGUSTA-ROCKINGHAM-NELSON-ALBEMARLE-GREENE-EASTERN HIGHLAND-
EASTERN PENDLETON-
INCLUDING THE CITIES OF...STAUNTON...WAYNESBORO...HARRISONBURG...
CHARLOTTESVILLE...MONTEREY...FRANKLIN
1029 PM EST TUE DEC 25 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 AM WEDNESDAY
TO 6 AM EST THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...2 TO 5 INCHES OF SNOW AND SLEET...WITH THE
  HIGHEST ALONG THE RIDGES. ONE TO TWO TENTHS INCH OF ICE.

* TIMING...LIGHT SNOW WILL BEGIN TO OVERSPREAD THE REGION FROM
  SOUTH TO NORTH OVERNIGHT...BECOME STEADY AND MIX IN WITH SLEET
  DURING THE EARLY MORNING. THE SNOW AND SLEET MIXTURE IS EXPECTED
  TO TRANSITION TO ALL FREEZING RAIN ALONG AND WEST OF THE BLUE
  RIDGE BY THE LATE AFTERNOON AND END BY EARLY THURSDAY MORNING.

* TEMPERATURES...UPPER 20S TO LOWER 30S.

* WINDS...NORTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

MDZ003>005-502-VAZ027>031-039-040-042-501-WVZ050>053-055-502-504-
261130-
/O.CON.KLWX.WW.Y.0020.121226T0800Z-121227T1100Z/
WASHINGTON-FREDERICK MD-CARROLL-CENTRAL AND EASTERN ALLEGANY-
SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE-MADISON-RAPPAHANNOCK-
LOUDOUN-NORTHERN FAUQUIER-HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-
HARDY-EASTERN GRANT-EASTERN MINERAL-
INCLUDING THE CITIES OF...HAGERSTOWN...FREDERICK...WESTMINSTER...
CUMBERLAND...WINCHESTER...FRONT ROYAL...WASHINGTON...LEESBURG...
WARRENTON...MARTINSBURG...CHARLES TOWN...MOOREFIELD...
PETERSBURG...KEYSER...FORT ASHBY
1029 PM EST TUE DEC 25 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 AM WEDNESDAY
TO 6 AM EST THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...1 TO 4 INCHES OF SNOW AND SLEET...WITH THE
  HIGHEST ALONG THE RIDGES. ONE TO TWO TENTHS INCH OF ICE.

* TIMING...LIGHT SNOW WILL BEGIN TO OVERSPREAD THE REGION FROM
  SOUTH TO NORTH DURING THE EARLY MORNING...BECOME STEADY AND MIX
  IN WITH SLEET AROUND SUNRISE. THE SNOW AND SLEET MIXTURE IS
  EXPECTED TO TRANSITION TO ALL FREEZING RAIN IN THE HIGHER
  ELEVATIONS BY THE LATE AFTERNOON...BEFORE ENDING EARLY THURSDAY
  MORNING.

* TEMPERATURES...UPPER 20S TO LOWER 30S

* WINDS...NORTHEAST 5 TO 15 MPH WITH GUSTS UP TO 30 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
357 
WWUS41 KLWX 260905
WSWLWX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
405 AM EST WED DEC 26 2012

MDZ502-VAZ504-WVZ502-504-506-261715-
/O.UPG.KLWX.WW.Y.0020.000000T0000Z-121227T1100Z/
/O.EXA.KLWX.WS.W.0009.000000T0000Z-121227T1100Z/
CENTRAL AND EASTERN ALLEGANY-EASTERN HIGHLAND-EASTERN GRANT-
EASTERN MINERAL-EASTERN PENDLETON-
INCLUDING THE CITIES OF...CUMBERLAND...MONTEREY...PETERSBURG...
KEYSER...FORT ASHBY...FRANKLIN
405 AM EST WED DEC 26 2012

...WINTER STORM WARNING IN EFFECT UNTIL 6 AM EST THURSDAY...

THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HAS ISSUED
A WINTER STORM WARNING FOR SNOW...SLEET AND FREEZING RAIN...WHICH
IS IN EFFECT UNTIL 6 AM EST THURSDAY. THE WINTER WEATHER ADVISORY
IS NO LONGER IN EFFECT.

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...3 TO 5 INCHES OF SNOW AND SLEET...WITH THE
  HIGHEST ALONG THE RIDGES. AROUND ONE QUARTER INCH OF ICE. 

* TIMING...LIGHT SNOW WILL OVERSPREAD THE REGION FROM SOUTH TO
  NORTH THROUGH DAYBREAK...BECOMING STEADY AND MIXING IN WITH
  SLEET DURING THE MID TO LATE MORNING. THE SNOW AND SLEET MIXTURE
  IS EXPECTED TO TRANSITION TO FREEZING RAIN DURING THE AFTERNOON
  AND EARLY EVENING BEFORE SWITCHING BACK TO SNOW LATE TONIGHT.

* TEMPERATURES...UPPER 20S TO LOWER 30S.

* WINDS...NORTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

MDZ501-VAZ503-WVZ501-503-505-261715-
/O.CON.KLWX.WS.W.0009.000000T0000Z-121227T1100Z/
EXTREME WESTERN ALLEGANY-WESTERN HIGHLAND-WESTERN GRANT-
WESTERN MINERAL-WESTERN PENDLETON-
INCLUDING THE CITIES OF...FROSTBURG...HIGHTOWN...BAYARD...
MOUNT STORM...ELK GARDEN...CIRCLEVILLE
405 AM EST WED DEC 26 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...6 TO 10 INCHES OF SNOW AND SLEET. ONE TO TWO
  TENTHS OF AN INCH OF ICE. 

* TIMING...SNOW WILL OVERSPREAD THE REGION THROUGH
  DAYBREAK...BECOMING STEADY AND HEAVY AT TIMES FROM LATE MORNING
  THROUGH THE AFTERNOON. SLEET AND FREEZING RAIN WILL MIX IN WITH
  THE SNOW DURING THE AFTERNOON AND EARLY EVENING. SNOW IS
  EXPECTED TO END LATE TONIGHT.

* TEMPERATURES...IN THE MID AND UPPER 20S.

* WINDS...NORTHEAST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE. THE WEIGHT OF THE SNOW AND 
  ICE ACCUMULATIONS COULD KNOCK DOWN TREE LIMBS AND POWER LINES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

VAZ025-026-036>038-261715-
/O.CON.KLWX.WW.Y.0020.000000T0000Z-121227T1100Z/
AUGUSTA-ROCKINGHAM-NELSON-ALBEMARLE-GREENE-
INCLUDING THE CITIES OF...STAUNTON...WAYNESBORO...HARRISONBURG...
CHARLOTTESVILLE
405 AM EST WED DEC 26 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...2 TO 4 INCHES OF SNOW AND SLEET...WITH THE
  HIGHEST ALONG THE RIDGES. ONE TO TWO TENTHS OF AN INCH OF ICE.

* TIMING...A MIX OF LIGHT SNOW AND SLEET WILL DEVELOP THROUGH
  DAYBREAK...AND CONTINUE THROUGH THE MORNING. SNOW AND SLEET WILL
  TRANSITION TO FREEZING RAIN DURING THE AFTERNOON AND EARLY
  EVENING BEFORE ENDING OVERNIGHT. 

* TEMPERATURES...UPPER 20S TO LOWER 30S.

* WINDS...NORTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

MDZ003>005-VAZ027>031-039-040-042-501-WVZ050>053-055-261715-
/O.CON.KLWX.WW.Y.0020.000000T0000Z-121227T1100Z/
WASHINGTON-FREDERICK MD-CARROLL-SHENANDOAH-FREDERICK VA-PAGE-
WARREN-CLARKE-MADISON-RAPPAHANNOCK-LOUDOUN-NORTHERN FAUQUIER-
HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-HARDY-
INCLUDING THE CITIES OF...HAGERSTOWN...FREDERICK...WESTMINSTER...
WINCHESTER...FRONT ROYAL...WASHINGTON...LEESBURG...WARRENTON...
MARTINSBURG...CHARLES TOWN...MOOREFIELD
405 AM EST WED DEC 26 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...SNOW AND SLEET ACCUMULATION AROUND AN INCH
  ACROSS THE FAR WESTERN SUBURBS OF THE METRO AREAS TO 3 INCHES
  OVER WEST-CENTRAL MARYLAND AND THE EASTERN WEST VIRGINIA
  PANHANDLE. ICE ACCUMULATIONS WILL RANGE FROM A FEW HUNDREDTHS OF
  AN INCH ACROSS THE FAR WESTERN SUBURBS...TO UP TO TWO TENTHS OF
  AN INCH ACROSS WEST-CENTRAL MARYLAND AND THE EASTERN WEST
  VIRGINIA PANHANDLE.

* TIMING...LIGHT SNOW WILL BEGIN TO OVERSPREAD THE REGION FROM
  SOUTH TO NORTH BETWEEN 5 AM AND 7 AM EARLY THIS MORNING. SNOW
  WILL LIKELY MIX WITH SLEET DURING THE MID TO LATE
  MORNING...BEFORE TRANSITIONING TO FREEZING RAIN THIS AFTERNOON
  AND EARLY EVENING. PRECIPITATION MAY REMAIN FREEZING RAIN NEAR 
  AND WEST OF THE BLUE RIDGE BEFORE ENDING LATE TONIGHT. 

* TEMPERATURES...UPPER 20S TO LOWER 30S.

* WINDS...NORTHEAST 5 TO 15 MPH WITH GUSTS UP TO 30 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
561 
WWUS41 KLWX 261339
WSWLWX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
839 AM EST WED DEC 26 2012

MDZ501-VAZ503-WVZ501-503-505-262145-
/O.CON.KLWX.WS.W.0009.000000T0000Z-121227T1100Z/
EXTREME WESTERN ALLEGANY-WESTERN HIGHLAND-WESTERN GRANT-
WESTERN MINERAL-WESTERN PENDLETON-
INCLUDING THE CITIES OF...FROSTBURG...HIGHTOWN...BAYARD...
MOUNT STORM...ELK GARDEN...CIRCLEVILLE
839 AM EST WED DEC 26 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...6 TO 10 INCHES OF SNOW AND SLEET. ONE TO TWO 
  TENTHS OF AN INCH OF ICE.

* TIMING...MODERATE TO OCCASIONALLY HEAVY SNOW WILL CONTINUE
  THROUGH THE AFTERNOON. SLEET AND FREEZING RAIN WILL OCCASIONALLY
  MIX IN WITH THE SNOW THROUGH THE EARLY EVENING. SNOW IS EXPECTED
  TO END LATE TONIGHT.

* TEMPERATURES...IN THE MID AND UPPER 20S.

* WINDS...NORTHEAST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE. THE WEIGHT OF THE SNOW AND 
  ICE ACCUMULATIONS COULD KNOCK DOWN TREE LIMBS AND POWER LINES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

MDZ502-VAZ504-WVZ502-504-506-262145-
/O.CON.KLWX.WS.W.0009.000000T0000Z-121227T1100Z/
CENTRAL AND EASTERN ALLEGANY-EASTERN HIGHLAND-EASTERN GRANT-
EASTERN MINERAL-EASTERN PENDLETON-
INCLUDING THE CITIES OF...CUMBERLAND...MONTEREY...PETERSBURG...
KEYSER...FORT ASHBY...FRANKLIN
839 AM EST WED DEC 26 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...3 TO 5 INCHES OF SNOW AND SLEET...WITH THE 
  HIGHEST ALONG THE RIDGES. AROUND ONE QUARTER INCH OF ICE.

* TIMING...SNOW AND SLEET WILL CONTINUE THROUGH THE EARLY AFTERNOON.
  THE SNOW AND SLEET MIXTURE IS EXPECTED TO TRANSITION TO FREEZING
  RAIN DURING THE AFTERNOON AND EARLY EVENING BEFORE SWITCHING
  BACK TO SNOW LATE TONIGHT.

* TEMPERATURES...UPPER 20S TO LOWER 30S.

* WINDS...NORTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

DCZ001-MDZ006-007-009>011-013-014-VAZ052>054-261800-
/O.EXB.KLWX.WW.Y.0020.000000T0000Z-121226T1800Z/
DISTRICT OF COLUMBIA-NORTHERN BALTIMORE-HARFORD-MONTGOMERY-HOWARD-
SOUTHERN BALTIMORE-PRINCE GEORGES-ANNE ARUNDEL-
PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX-
ARLINGTON/FALLS CHURCH/ALEXANDRIA-
INCLUDING THE CITIES OF...WASHINGTON...GAITHERSBURG...COLUMBIA...
BALTIMORE...ANNAPOLIS...MANASSAS...MANASSAS PARK...FAIRFAX...
ALEXANDRIA...FALLS CHURCH
839 AM EST WED DEC 26 2012

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 1 PM EST THIS
AFTERNOON...

THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HAS
ISSUED A WINTER WEATHER ADVISORY FOR A WINTRY MIX OF SNOW...SLEET
AND FREEZING RAIN... WHICH IS IN EFFECT UNTIL 1 PM EST THIS AFTERNOON.

* PRECIPITATION TYPE...A WINTRY MIX OF FREEZING RAIN...SLEET AND RAIN.

* ACCUMULATIONS...LESS THAN ONCE INCH OF SLEET ACCUMULATION. A
  TENTH OF AN INCH OR LESS OF ICE ACCUMULATION.

* TIMING...A WINTRY MIX OF FREEZING RAIN...RAIN AND SLEET WILL
  CONTINUE THROUGH THE EARLY AFTERNOON.

* TEMPERATURES...UPPER 20S TO LOWER 30S.

* WINDS...NORTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

VAZ025-026-036>038-262145-
/O.CON.KLWX.WW.Y.0020.000000T0000Z-121227T1100Z/
AUGUSTA-ROCKINGHAM-NELSON-ALBEMARLE-GREENE-
INCLUDING THE CITIES OF...STAUNTON...WAYNESBORO...HARRISONBURG...
CHARLOTTESVILLE
839 AM EST WED DEC 26 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...2 TO 4 INCHES OF SNOW AND SLEET...WITH THE 
  HIGHEST ALONG THE RIDGES. ONE TO TWO TENTHS OF AN INCH OF ICE.

* TIMING...SNOW AND SLEET WILL TRANSITION TO FREEZING RAIN DURING
  THE AFTERNOON AND EARLY EVENING BEFORE ENDING OVERNIGHT.

* TEMPERATURES...UPPER 20S TO LOWER 30S.

* WINDS...NORTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

MDZ003>005-VAZ027>031-039-040-042-501-WVZ050>053-055-262145-
/O.CON.KLWX.WW.Y.0020.000000T0000Z-121227T1100Z/
WASHINGTON-FREDERICK MD-CARROLL-SHENANDOAH-FREDERICK VA-PAGE-
WARREN-CLARKE-MADISON-RAPPAHANNOCK-LOUDOUN-NORTHERN FAUQUIER-
HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-HARDY-
INCLUDING THE CITIES OF...HAGERSTOWN...FREDERICK...WESTMINSTER...
WINCHESTER...FRONT ROYAL...WASHINGTON...LEESBURG...WARRENTON...
MARTINSBURG...CHARLES TOWN...MOOREFIELD
839 AM EST WED DEC 26 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...SNOW AND SLEET ACCUMULATION AROUND AN INCH 
  ACROSS THE FAR WESTERN SUBURBS OF THE METRO AREAS TO 3 INCHES 
  OVER WEST-CENTRAL MARYLAND AND THE EASTERN WEST VIRGINIA 
  PANHANDLE. ICE ACCUMULATIONS WILL RANGE FROM A FEW HUNDREDTHS 
  OF AN INCH ACROSS THE FAR WESTERN SUBURBS...TO UP TO TWO 
  TENTHS OF AN INCH ACROSS WEST-CENTRAL MARYLAND AND THE EASTERN 
  WEST VIRGINIA PANHANDLE.

* TIMING...SNOW AND SLEET WILL TRANSITION TO FREEZING RAIN THIS AFTERNOON
  AND EARLY EVENING. PRECIPITATION MAY REMAIN FREEZING RAIN NEAR
  AND WEST OF THE BLUE RIDGE BEFORE ENDING LATE TONIGHT.

* TEMPERATURES...UPPER 20S TO LOWER 30S.

* WINDS...NORTHEAST 5 TO 15 MPH WITH GUSTS UP TO 30 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
616 
WWUS41 KLWX 261648
WSWLWX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1148 AM EST WED DEC 26 2012

MDZ501-VAZ503-WVZ501-503-505-270100-
/O.CON.KLWX.WS.W.0009.000000T0000Z-121227T1100Z/
EXTREME WESTERN ALLEGANY-WESTERN HIGHLAND-WESTERN GRANT-
WESTERN MINERAL-WESTERN PENDLETON-
INCLUDING THE CITIES OF...FROSTBURG...HIGHTOWN...BAYARD...
MOUNT STORM...ELK GARDEN...CIRCLEVILLE
1148 AM EST WED DEC 26 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...6 TO 10 INCHES OF SNOW AND SLEET. ONE TO TWO 
  TENTHS OF AN INCH OF ICE.

* TIMING...MODERATE TO OCCASIONALLY HEAVY SNOW WILL CONTINUE 
  THROUGH THE AFTERNOON. SLEET AND FREEZING RAIN WILL 
  OCCASIONALLY MIX IN WITH THE SNOW THROUGH THE EARLY EVENING. 
  SNOW IS EXPECTED TO END LATE TONIGHT.

* TEMPERATURES...IN THE MID AND UPPER 20S.

* WINDS...NORTHEAST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE. THE WEIGHT OF THE SNOW AND 
  ICE ACCUMULATIONS COULD KNOCK DOWN TREE LIMBS AND POWER LINES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

MDZ502-VAZ504-WVZ502-504-506-270100-
/O.CON.KLWX.WS.W.0009.000000T0000Z-121227T1100Z/
CENTRAL AND EASTERN ALLEGANY-EASTERN HIGHLAND-EASTERN GRANT-
EASTERN MINERAL-EASTERN PENDLETON-
INCLUDING THE CITIES OF...CUMBERLAND...MONTEREY...PETERSBURG...
KEYSER...FORT ASHBY...FRANKLIN
1148 AM EST WED DEC 26 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...3 TO 5 INCHES OF SNOW AND SLEET. AROUND ONE
  QUARTER INCH OF ICE.

* TIMING...SNOW AND SLEET WILL CONTINUE TO MIX WITH FREEZING RAIN
  THIS AFTERNOON AND EARLY EVENING BEFORE SWITCHING BACK TO SNOW
  LATE TONIGHT.

* TEMPERATURES...UPPER 20S TO LOWER 30S.

* WINDS...NORTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

DCZ001-MDZ006-007-009>011-013-014-VAZ052>054-270000-
/O.EXT.KLWX.WW.Y.0020.000000T0000Z-121227T0000Z/
DISTRICT OF COLUMBIA-NORTHERN BALTIMORE-HARFORD-MONTGOMERY-HOWARD-
SOUTHERN BALTIMORE-PRINCE GEORGES-ANNE ARUNDEL-
PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX-
ARLINGTON/FALLS CHURCH/ALEXANDRIA-
INCLUDING THE CITIES OF...WASHINGTON...GAITHERSBURG...COLUMBIA...
BALTIMORE...ANNAPOLIS...MANASSAS...MANASSAS PARK...FAIRFAX...
ALEXANDRIA...FALLS CHURCH
1148 AM EST WED DEC 26 2012

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* PRECIPITATION TYPE...A WINTRY MIX RAIN AND SLEET...WITH POCKETS
  OF FREEZING RAIN.

* ACCUMULATIONS...LESS THAN ONCE INCH OF SLEET ACCUMULATION. A 
  TENTH OF AN INCH OR LESS OF ICE ACCUMULATION.

* TIMING...SLEET AND RAIN...WITH POCKETS OF FREEZING RAIN...
  WILL CONTINUE THROUGH THE EARLY EVENING.

* TEMPERATURES...LOWER 30S.

* WINDS...NORTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

VAZ025-026-036>038-270100-
/O.CON.KLWX.WW.Y.0020.000000T0000Z-121227T1100Z/
AUGUSTA-ROCKINGHAM-NELSON-ALBEMARLE-GREENE-
INCLUDING THE CITIES OF...STAUNTON...WAYNESBORO...HARRISONBURG...
CHARLOTTESVILLE
1148 AM EST WED DEC 26 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...2 TO 4 INCHES OF SNOW AND SLEET...WITH THE 
  HIGHEST ALONG THE RIDGES. ONE TO TWO TENTHS OF AN INCH OF ICE.

* TIMING...SNOW AND SLEET WILL MIX WITH FREEZING RAIN THIS
  AFTERNOON AND EARLY EVENING BEFORE ENDING OVERNIGHT.

* TEMPERATURES...UPPER 20S TO LOWER 30S.

* WINDS...NORTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

MDZ003>005-VAZ027>031-039-040-042-501-WVZ050>053-055-270100-
/O.CON.KLWX.WW.Y.0020.000000T0000Z-121227T1100Z/
WASHINGTON-FREDERICK MD-CARROLL-SHENANDOAH-FREDERICK VA-PAGE-
WARREN-CLARKE-MADISON-RAPPAHANNOCK-LOUDOUN-NORTHERN FAUQUIER-
HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-HARDY-
INCLUDING THE CITIES OF...HAGERSTOWN...FREDERICK...WESTMINSTER...
WINCHESTER...FRONT ROYAL...WASHINGTON...LEESBURG...WARRENTON...
MARTINSBURG...CHARLES TOWN...MOOREFIELD
1148 AM EST WED DEC 26 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...SNOW AND SLEET ACCUMULATION AROUND AN INCH
  ACROSS THE FAR WESTERN SUBURBS OF THE METRO AREAS TO 3 INCHES
  OVER WEST-CENTRAL MARYLAND AND THE EASTERN WEST VIRGINIA
  PANHANDLE. ICE ACCUMULATIONS WILL RANGE FROM LESS THAN A TENTH
  OF AN INCH ACROSS THE FAR WESTERN SUBURBS...TO UP TO TWO TENTHS OF
  AN INCH ACROSS WEST-CENTRAL MARYLAND AND THE EASTERN WEST
  VIRGINIA PANHANDLE.

* TIMING...RAIN AND SLEET WILL MIX WITH FREEZING RAIN THIS
  AFTERNOON AND EARLY EVENING.

* TEMPERATURES...UPPER 20S TO LOWER 30S.

* WINDS...NORTHEAST 5 TO 15 MPH WITH GUSTS UP TO 30 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A
  WINTRY MIX OF SNOW...SLEET AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
889 
WWUS41 KLWX 261815
WSWLWX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
115 PM EST WED DEC 26 2012

WVZ050-051-055-270215-
/O.UPG.KLWX.WW.Y.0020.000000T0000Z-121227T1100Z/
/O.EXA.KLWX.WS.W.0009.000000T0000Z-121227T1100Z/
HAMPSHIRE-MORGAN-HARDY-
INCLUDING THE CITY OF...MOOREFIELD
115 PM EST WED DEC 26 2012

...WINTER STORM WARNING IN EFFECT UNTIL 6 AM EST THURSDAY...

THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HAS
ISSUED A WINTER STORM WARNING FOR A WINTRY MIX OF SNOW...SLEET AND
FREEZING RAIN...WHICH IS IN EFFECT UNTIL 6 AM EST THURSDAY. THE WINTER
WEATHER ADVISORY IS NO LONGER IN EFFECT.

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...SNOW AND SLEET ACCUMULATION OF 4 TO 6 INCHES.
  ICE ACCUMULATION BETWEEN ONE AND TWO TENTHS OF AN INCH.

* TIMING...SNOW AND SLEET WILL MIX WITH FREEZING RAIN AT TIMES.

* TEMPERATURES...IN THE UPPER 20S.

* WINDS...NORTH 10 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

MDZ501-VAZ503-WVZ501-503-505-270215-
/O.CON.KLWX.WS.W.0009.000000T0000Z-121227T1100Z/
EXTREME WESTERN ALLEGANY-WESTERN HIGHLAND-WESTERN GRANT-
WESTERN MINERAL-WESTERN PENDLETON-
INCLUDING THE CITIES OF...FROSTBURG...HIGHTOWN...BAYARD...
MOUNT STORM...ELK GARDEN...CIRCLEVILLE
115 PM EST WED DEC 26 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...6 TO 10 INCHES OF SNOW AND SLEET. ONE TO TWO 
  TENTHS OF AN INCH OF ICE.

* TIMING...MODERATE TO OCCASIONALLY HEAVY SNOW WILL CONTINUE 
  THROUGH THE AFTERNOON. SLEET AND FREEZING RAIN WILL 
  OCCASIONALLY MIX IN WITH THE SNOW THROUGH THE EARLY EVENING. 
  SNOW IS EXPECTED TO END LATE TONIGHT.

* TEMPERATURES...IN THE MID 20S.

* WINDS...NORTH 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE. THE WEIGHT OF THE SNOW AND 
  ICE ACCUMULATIONS COULD KNOCK DOWN TREE LIMBS AND POWER LINES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

MDZ502-VAZ504-WVZ502-504-506-270215-
/O.CON.KLWX.WS.W.0009.000000T0000Z-121227T1100Z/
CENTRAL AND EASTERN ALLEGANY-EASTERN HIGHLAND-EASTERN GRANT-
EASTERN MINERAL-EASTERN PENDLETON-
INCLUDING THE CITIES OF...CUMBERLAND...MONTEREY...PETERSBURG...
KEYSER...FORT ASHBY...FRANKLIN
115 PM EST WED DEC 26 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...4 TO 6 INCHES OF SNOW AND SLEET. AROUND ONE
  QUARTER INCH OF ICE.

* TIMING...SNOW AND SLEET WILL CONTINUE TO MIX WITH FREEZING 
  RAIN THIS AFTERNOON AND EARLY EVENING BEFORE SWITCHING BACK TO 
  SNOW LATE TONIGHT.

* TEMPERATURES...IN THE MID 20S.

* WINDS...NORTH 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

DCZ001-MDZ006-007-009>011-013-014-VAZ052>054-270000-
/O.CON.KLWX.WW.Y.0020.000000T0000Z-121227T0000Z/
DISTRICT OF COLUMBIA-NORTHERN BALTIMORE-HARFORD-MONTGOMERY-HOWARD-
SOUTHERN BALTIMORE-PRINCE GEORGES-ANNE ARUNDEL-
PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX-
ARLINGTON/FALLS CHURCH/ALEXANDRIA-
INCLUDING THE CITIES OF...WASHINGTON...GAITHERSBURG...COLUMBIA...
BALTIMORE...ANNAPOLIS...MANASSAS...MANASSAS PARK...FAIRFAX...
ALEXANDRIA...FALLS CHURCH
115 PM EST WED DEC 26 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* PRECIPITATION TYPE...A WINTRY MIX RAIN AND SLEET...WITH 
  POCKETS OF FREEZING RAIN.

* ACCUMULATIONS...SNOW AND SLEET ACCUMULATIONS UP TO 1 INCH. ICE
  ACCUMULATIONS LESS THAN A TENTH OF AN INCH.

* TIMING...SLEET AND RAIN...WITH POCKETS OF FREEZING RAIN... 
  WILL CONTINUE THROUGH THE EARLY EVENING.

* TEMPERATURES...IN THE MID 30S.

* WINDS...EAST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

VAZ025-026-036>038-270215-
/O.CON.KLWX.WW.Y.0020.000000T0000Z-121227T1100Z/
AUGUSTA-ROCKINGHAM-NELSON-ALBEMARLE-GREENE-
INCLUDING THE CITIES OF...STAUNTON...WAYNESBORO...HARRISONBURG...
CHARLOTTESVILLE
115 PM EST WED DEC 26 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...SNOW AND SLEET ACCUMULATIONS OF 2 TO 4 INCHES IN
  THE HIGHER TERRAIN...LESS THAN AN INCH IN THE LOWER ELEVATIONS. ICE
  ACCUMULATIONS FROM A TRACE IN THE LOWER ELEVATIONS UP TO TWO
  TENTHS OF AN INCH IN THE HIGHER TERRAIN.

* TIMING...SNOW AND SLEET WILL MIX WITH FREEZING RAIN THIS 
  AFTERNOON AND EARLY EVENING BEFORE ENDING OVERNIGHT.

* TEMPERATURES...AROUND 30.

* WINDS...NORTHWEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

MDZ003>005-VAZ027>031-039-040-042-501-WVZ052-053-270215-
/O.CON.KLWX.WW.Y.0020.000000T0000Z-121227T1100Z/
WASHINGTON-FREDERICK MD-CARROLL-SHENANDOAH-FREDERICK VA-PAGE-
WARREN-CLARKE-MADISON-RAPPAHANNOCK-LOUDOUN-NORTHERN FAUQUIER-
BERKELEY-JEFFERSON-
INCLUDING THE CITIES OF...HAGERSTOWN...FREDERICK...WESTMINSTER...
WINCHESTER...FRONT ROYAL...WASHINGTON...LEESBURG...WARRENTON...
MARTINSBURG...CHARLES TOWN
115 PM EST WED DEC 26 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...SNOW AND SLEET ACCUMULATION AROUND AN INCH
  ACROSS THE FAR WESTERN SUBURBS OF THE METRO AREAS TO 3 INCHES
  OVER WEST-CENTRAL MARYLAND AND THE EASTERN WEST VIRGINIA
  PANHANDLE. ICE ACCUMULATIONS WILL RANGE FROM LESS THAN A TENTH
  OF AN INCH ACROSS THE FAR WESTERN SUBURBS...TO UP TO TWO TENTHS OF
  AN INCH ACROSS WEST-CENTRAL MARYLAND AND THE EASTERN WEST
  VIRGINIA PANHANDLE.

* TIMING...RAIN AND SLEET WILL MIX WITH FREEZING RAIN THIS 
  AFTERNOON AND EARLY EVENING.

* TEMPERATURES...AROUND 30.

* WINDS...NORTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
697 
WWUS41 KLWX 261951
WSWLWX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
251 PM EST WED DEC 26 2012

MDZ013-014-262100-
/O.CAN.KLWX.WW.Y.0020.000000T0000Z-121227T0000Z/
PRINCE GEORGES-ANNE ARUNDEL-
INCLUDING THE CITY OF...ANNAPOLIS
251 PM EST WED DEC 26 2012

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HAS
CANCELLED THE WINTER WEATHER ADVISORY.

TEMPERATURES HAVE RISEN ABOVE FREEZING.

$$

MDZ501-VAZ503-WVZ501-503-505-270400-
/O.CON.KLWX.WS.W.0009.000000T0000Z-121227T1100Z/
EXTREME WESTERN ALLEGANY-WESTERN HIGHLAND-WESTERN GRANT-
WESTERN MINERAL-WESTERN PENDLETON-
INCLUDING THE CITIES OF...FROSTBURG...HIGHTOWN...BAYARD...
MOUNT STORM...ELK GARDEN...CIRCLEVILLE
251 PM EST WED DEC 26 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...6 TO 10 INCHES OF SNOW AND SLEET. ONE TO TWO 
  TENTHS OF AN INCH OF ICE.

* TIMING...MODERATE TO OCCASIONALLY HEAVY SNOW WILL CONTINUE 
  THROUGH THE AFTERNOON. SLEET AND FREEZING RAIN WILL 
  OCCASIONALLY MIX IN WITH THE SNOW THROUGH THE EARLY EVENING. 
  SNOW IS EXPECTED TO END LATE TONIGHT.

* TEMPERATURES...IN THE MID 20S.

* WINDS...NORTH 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE. THE WEIGHT OF THE SNOW AND 
  ICE ACCUMULATIONS COULD KNOCK DOWN TREE LIMBS AND POWER LINES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

MDZ502-VAZ504-WVZ050-051-055-502-504-506-270400-
/O.CON.KLWX.WS.W.0009.000000T0000Z-121227T1100Z/
CENTRAL AND EASTERN ALLEGANY-EASTERN HIGHLAND-HAMPSHIRE-MORGAN-
HARDY-EASTERN GRANT-EASTERN MINERAL-EASTERN PENDLETON-
INCLUDING THE CITIES OF...CUMBERLAND...MONTEREY...MOOREFIELD...
PETERSBURG...KEYSER...FORT ASHBY...FRANKLIN
251 PM EST WED DEC 26 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...SNOW AND SLEET ACCUMULATION OF 4 TO 6 INCHES. 
  ICE ACCUMULATION BETWEEN ONE AND TWO TENTHS OF AN INCH.

* TIMING...SNOW AND SLEET WILL MIX WITH FREEZING RAIN AT TIMES.

* TEMPERATURES...IN THE UPPER 20S.

* WINDS...NORTH 10 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

DCZ001-MDZ006-007-009>011-VAZ052>054-270000-
/O.CON.KLWX.WW.Y.0020.000000T0000Z-121227T0000Z/
DISTRICT OF COLUMBIA-NORTHERN BALTIMORE-HARFORD-MONTGOMERY-HOWARD-
SOUTHERN BALTIMORE-PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX-
ARLINGTON/FALLS CHURCH/ALEXANDRIA-
INCLUDING THE CITIES OF...WASHINGTON...GAITHERSBURG...COLUMBIA...
BALTIMORE...MANASSAS...MANASSAS PARK...FAIRFAX...ALEXANDRIA...
FALLS CHURCH
251 PM EST WED DEC 26 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* PRECIPITATION TYPE...A WINTRY MIX RAIN AND SLEET...WITH 
  POCKETS OF FREEZING RAIN.

* ACCUMULATIONS...SNOW AND SLEET ACCUMULATIONS UP TO 1 INCH. ICE 
  ACCUMULATIONS LESS THAN A TENTH OF AN INCH.

* TIMING...SLEET AND RAIN...WITH POCKETS OF FREEZING RAIN... 
  WILL CONTINUE THROUGH THE EARLY EVENING.

* TEMPERATURES...IN THE MID 30S.

* WINDS...EAST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

VAZ025-026-036>038-270400-
/O.CON.KLWX.WW.Y.0020.000000T0000Z-121227T1100Z/
AUGUSTA-ROCKINGHAM-NELSON-ALBEMARLE-GREENE-
INCLUDING THE CITIES OF...STAUNTON...WAYNESBORO...HARRISONBURG...
CHARLOTTESVILLE
251 PM EST WED DEC 26 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...SNOW AND SLEET ACCUMULATIONS OF 2 TO 4 INCHES 
  IN THE HIGHER TERRAIN...LESS THAN AN INCH IN THE LOWER 
  ELEVATIONS. ICE ACCUMULATIONS FROM A TRACE IN THE LOWER 
  ELEVATIONS UP TO TWO TENTHS OF AN INCH IN THE HIGHER TERRAIN.

* TIMING...SNOW AND SLEET WILL MIX WITH FREEZING RAIN THIS 
  AFTERNOON AND EARLY EVENING BEFORE ENDING OVERNIGHT.

* TEMPERATURES...AROUND 30.

* WINDS...NORTHWEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

MDZ003>005-VAZ027>031-039-040-042-501-WVZ052-053-270400-
/O.CON.KLWX.WW.Y.0020.000000T0000Z-121227T1100Z/
WASHINGTON-FREDERICK MD-CARROLL-SHENANDOAH-FREDERICK VA-PAGE-
WARREN-CLARKE-MADISON-RAPPAHANNOCK-LOUDOUN-NORTHERN FAUQUIER-
BERKELEY-JEFFERSON-
INCLUDING THE CITIES OF...HAGERSTOWN...FREDERICK...WESTMINSTER...
WINCHESTER...FRONT ROYAL...WASHINGTON...LEESBURG...WARRENTON...
MARTINSBURG...CHARLES TOWN
251 PM EST WED DEC 26 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...SNOW AND SLEET ACCUMULATION AROUND AN INCH 
  ACROSS THE FAR WESTERN SUBURBS OF THE METRO AREAS TO 3 INCHES 
  OVER WEST-CENTRAL MARYLAND AND THE EASTERN WEST VIRGINIA 
  PANHANDLE. ICE ACCUMULATIONS WILL RANGE FROM LESS THAN A TENTH 
  OF AN INCH ACROSS THE FAR WESTERN SUBURBS...TO UP TO TWO 
  TENTHS OF AN INCH ACROSS WEST-CENTRAL MARYLAND AND THE EASTERN 
  WEST VIRGINIA PANHANDLE.

* TIMING...RAIN AND SLEET WILL MIX WITH FREEZING RAIN THIS 
  AFTERNOON AND EARLY EVENING.

* TEMPERATURES...AROUND 30.

* WINDS...NORTH 10 TO 20 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
377 
WWUS41 KLWX 262138
WSWLWX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
438 PM EST WED DEC 26 2012

DCZ001-MDZ010-011-VAZ052>054-262245-
/O.CAN.KLWX.WW.Y.0020.000000T0000Z-121227T0000Z/
DISTRICT OF COLUMBIA-HOWARD-SOUTHERN BALTIMORE-
PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX-
ARLINGTON/FALLS CHURCH/ALEXANDRIA-
INCLUDING THE CITIES OF...WASHINGTON...COLUMBIA...BALTIMORE...
MANASSAS...MANASSAS PARK...FAIRFAX...ALEXANDRIA...FALLS CHURCH
438 PM EST WED DEC 26 2012

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HAS
CANCELLED THE WINTER WEATHER ADVISORY.

TEMPERATURES HAVE WARMED ABOVE FREEZING. PRECIPITATION FOR THE
REST OF THE EVENING WILL FALL AS JUST RAIN.

$$

MDZ501-VAZ503-WVZ501-503-505-270545-
/O.CON.KLWX.WS.W.0009.000000T0000Z-121227T1100Z/
EXTREME WESTERN ALLEGANY-WESTERN HIGHLAND-WESTERN GRANT-
WESTERN MINERAL-WESTERN PENDLETON-
INCLUDING THE CITIES OF...FROSTBURG...HIGHTOWN...BAYARD...
MOUNT STORM...ELK GARDEN...CIRCLEVILLE
438 PM EST WED DEC 26 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...6 TO 12 INCHES.

* TIMING...MODERATE TO OCCASIONALLY HEAVY SNOW WILL CONTINUE 
  THROUGH THE AFTERNOON. SLEET AND FREEZING RAIN WILL 
  OCCASIONALLY MIX IN WITH THE SNOW THROUGH THE EARLY EVENING. 
  SNOW IS EXPECTED TO END LATE TONIGHT.

* TEMPERATURES...25 TO 30 DEGREES.

* WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE. THE WEIGHT OF THE SNOW AND 
  ICE ACCUMULATIONS COULD KNOCK DOWN TREE LIMBS AND POWER LINES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

MDZ502-VAZ504-WVZ050-051-055-502-504-506-270545-
/O.CON.KLWX.WS.W.0009.000000T0000Z-121227T1100Z/
CENTRAL AND EASTERN ALLEGANY-EASTERN HIGHLAND-HAMPSHIRE-MORGAN-
HARDY-EASTERN GRANT-EASTERN MINERAL-EASTERN PENDLETON-
INCLUDING THE CITIES OF...CUMBERLAND...MONTEREY...MOOREFIELD...
PETERSBURG...KEYSER...FORT ASHBY...FRANKLIN
438 PM EST WED DEC 26 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...4 TO 8 INCHES.

* TIMING...SNOW AND SLEET WILL MIX WITH FREEZING RAIN AT TIMES.

* TEMPERATURES...IN THE UPPER 20S.

* WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

MDZ006-007-009-270000-
/O.CON.KLWX.WW.Y.0020.000000T0000Z-121227T0000Z/
NORTHERN BALTIMORE-HARFORD-MONTGOMERY-
INCLUDING THE CITY OF...GAITHERSBURG
438 PM EST WED DEC 26 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM EST THIS
EVENING...

* PRECIPITATION TYPE...A WINTRY MIX RAIN AND SLEET...WITH 
  POCKETS OF FREEZING RAIN.

* ACCUMULATIONS...UP TO 1 INCH.

* TIMING...SLEET AND RAIN...WITH POCKETS OF FREEZING RAIN... 
  WILL CONTINUE THROUGH THE EARLY EVENING.

* TEMPERATURES...IN THE MID 30S.

* WINDS...EAST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

VAZ025-026-036>038-270545-
/O.CON.KLWX.WW.Y.0020.000000T0000Z-121227T1100Z/
AUGUSTA-ROCKINGHAM-NELSON-ALBEMARLE-GREENE-
INCLUDING THE CITIES OF...STAUNTON...WAYNESBORO...HARRISONBURG...
CHARLOTTESVILLE
438 PM EST WED DEC 26 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...2 TO 4 INCHES.

* TIMING...SNOW AND SLEET WILL MIX WITH FREEZING RAIN THIS 
  AFTERNOON AND EARLY EVENING BEFORE ENDING OVERNIGHT.

* TEMPERATURES...AROUND 30.

* WINDS...NORTHWEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

MDZ003>005-VAZ027>031-039-040-042-501-WVZ052-053-270545-
/O.CON.KLWX.WW.Y.0020.000000T0000Z-121227T1100Z/
WASHINGTON-FREDERICK MD-CARROLL-SHENANDOAH-FREDERICK VA-PAGE-
WARREN-CLARKE-MADISON-RAPPAHANNOCK-LOUDOUN-NORTHERN FAUQUIER-
BERKELEY-JEFFERSON-
INCLUDING THE CITIES OF...HAGERSTOWN...FREDERICK...WESTMINSTER...
WINCHESTER...FRONT ROYAL...WASHINGTON...LEESBURG...WARRENTON...
MARTINSBURG...CHARLES TOWN
438 PM EST WED DEC 26 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...2 TO 6 INCHES.

* TIMING...RAIN AND SLEET WILL MIX WITH FREEZING RAIN THIS 
  AFTERNOON AND EARLY EVENING.

* TEMPERATURES...IN THE LOWER 30S.

* WINDS...NORTHWEST 10 TO 20 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

HTS
310 
WWUS41 KLWX 262352
WSWLWX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
652 PM EST WED DEC 26 2012

MDZ006-007-009-270100-
/O.EXP.KLWX.WW.Y.0020.000000T0000Z-121227T0000Z/
NORTHERN BALTIMORE-HARFORD-MONTGOMERY-
INCLUDING THE CITY OF...GAITHERSBURG
652 PM EST WED DEC 26 2012

...WINTER WEATHER ADVISORY WILL EXPIRE AT 7 PM EST THIS EVENING...

TEMPERATURES HAVE RISEN ABOVE FREEZING. PRECIPITATION TONIGHT WILL
FALL AS JUST RAIN. 

THERE STILL MAY BE A FEW SLICK SPOTS FROM SLUSH THAT ACCUMULATED
EARLIER TODAY. MOTORISTS SHOULD STILL EXERCISE CAUTION TONIGHT.

$$

MDZ501-VAZ503-WVZ501-503-505-270800-
/O.CON.KLWX.WS.W.0009.000000T0000Z-121227T1100Z/
EXTREME WESTERN ALLEGANY-WESTERN HIGHLAND-WESTERN GRANT-
WESTERN MINERAL-WESTERN PENDLETON-
INCLUDING THE CITIES OF...FROSTBURG...HIGHTOWN...BAYARD...
MOUNT STORM...ELK GARDEN...CIRCLEVILLE
652 PM EST WED DEC 26 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW AND SLEET.

* ACCUMULATIONS...6 TO 12 INCHES.

* TIMING...SNOW WILL CONTINUE TONIGHT...MIXING WITH SLEET OR
  FREEZING DRIZZLE AT TIMES.

* TEMPERATURES...IN THE MID 20S.

* WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 45 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE. THE WEIGHT OF THE SNOW AND 
  ICE ACCUMULATIONS COULD KNOCK DOWN TREE LIMBS AND POWER LINES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

MDZ502-VAZ504-WVZ050-051-055-502-504-506-270800-
/O.CON.KLWX.WS.W.0009.000000T0000Z-121227T1100Z/
CENTRAL AND EASTERN ALLEGANY-EASTERN HIGHLAND-HAMPSHIRE-MORGAN-
HARDY-EASTERN GRANT-EASTERN MINERAL-EASTERN PENDLETON-
INCLUDING THE CITIES OF...CUMBERLAND...MONTEREY...MOOREFIELD...
PETERSBURG...KEYSER...FORT ASHBY...FRANKLIN
652 PM EST WED DEC 26 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW AND SLEET...OCCASIONALLY
  MIXING WITH FREEZING RAIN OR FREEZING DRIZZLE.

* ACCUMULATIONS...4 TO 6 INCHES.

* TIMING...PRECIPITATION WILL END TOWARDS DAWN.

* TEMPERATURES...IN THE UPPER 20S.

* WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

VAZ025-026-036>038-270800-
/O.CON.KLWX.WW.Y.0020.000000T0000Z-121227T1100Z/
AUGUSTA-ROCKINGHAM-NELSON-ALBEMARLE-GREENE-
INCLUDING THE CITIES OF...STAUNTON...WAYNESBORO...HARRISONBURG...
CHARLOTTESVILLE
652 PM EST WED DEC 26 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET...FREEZING
  RAIN...AND RAIN.

* ACCUMULATIONS...2 TO 4 INCHES.

* TIMING...PRECIPITATION WILL END AFTER MIDNIGHT.

* TEMPERATURES...IN THE LOWER 30S.

* WINDS...NORTHWEST 10 TO 20 MPH WITH GUSTS UP TO 40 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

MDZ003>005-VAZ027>031-039-040-042-501-WVZ052-053-270800-
/O.CON.KLWX.WW.Y.0020.000000T0000Z-121227T1100Z/
WASHINGTON-FREDERICK MD-CARROLL-SHENANDOAH-FREDERICK VA-PAGE-
WARREN-CLARKE-MADISON-RAPPAHANNOCK-LOUDOUN-NORTHERN FAUQUIER-
BERKELEY-JEFFERSON-
INCLUDING THE CITIES OF...HAGERSTOWN...FREDERICK...WESTMINSTER...
WINCHESTER...FRONT ROYAL...WASHINGTON...LEESBURG...WARRENTON...
MARTINSBURG...CHARLES TOWN
652 PM EST WED DEC 26 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...2 TO 4 INCHES.

* TIMING...PRECIPITATION WILL END AFTER MIDNIGHT.

* TEMPERATURES...IN THE LOWER 30S.

* WINDS...NORTHWEST 10 TO 20 MPH WITH GUSTS UP TO 35 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

HTS
279 
WWUS41 KLWX 270224
WSWLWX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
924 PM EST WED DEC 26 2012

MDZ005-270330-
/O.CAN.KLWX.WW.Y.0020.000000T0000Z-121227T1100Z/
CARROLL-
INCLUDING THE CITY OF...WESTMINSTER
924 PM EST WED DEC 26 2012

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HAS
CANCELLED THE WINTER WEATHER ADVISORY.

TEMPERATURES HAVE RISEN ABOVE FREEZING. PRECIPITATION TONIGHT WILL
FALL AS JUST RAIN. 

THERE STILL MAY BE A FEW SLICK SPOTS FROM SLUSH THAT ACCUMULATED
EARLIER TODAY. MOTORISTS SHOULD STILL EXERCISE CAUTION TONIGHT.

$$

MDZ501-VAZ503-WVZ501-503-505-271030-
/O.CON.KLWX.WS.W.0009.000000T0000Z-121227T1100Z/
EXTREME WESTERN ALLEGANY-WESTERN HIGHLAND-WESTERN GRANT-
WESTERN MINERAL-WESTERN PENDLETON-
INCLUDING THE CITIES OF...FROSTBURG...HIGHTOWN...BAYARD...
MOUNT STORM...ELK GARDEN...CIRCLEVILLE
924 PM EST WED DEC 26 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW AND SLEET.

* ACCUMULATIONS...6 TO 12 INCHES OF SNOW. A TRACE OF ADDITIONAL
  ICING. 

* TIMING...SNOW WILL CONTINUE TONIGHT...MIXING WITH SLEET OR 
  FREEZING DRIZZLE AT TIMES.

* TEMPERATURES...IN THE MID 20S.

* WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 45 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE. THE WEIGHT OF THE SNOW AND 
  ICE ACCUMULATIONS COULD KNOCK DOWN TREE LIMBS AND POWER LINES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

MDZ502-VAZ504-WVZ050-051-055-502-504-506-271030-
/O.CON.KLWX.WS.W.0009.000000T0000Z-121227T1100Z/
CENTRAL AND EASTERN ALLEGANY-EASTERN HIGHLAND-HAMPSHIRE-MORGAN-
HARDY-EASTERN GRANT-EASTERN MINERAL-EASTERN PENDLETON-
INCLUDING THE CITIES OF...CUMBERLAND...MONTEREY...MOOREFIELD...
PETERSBURG...KEYSER...FORT ASHBY...FRANKLIN
924 PM EST WED DEC 26 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW AND SLEET... 
  OCCASIONALLY MIXING WITH FREEZING RAIN OR FREEZING DRIZZLE.

* ACCUMULATIONS...4 TO 6 INCHES OF SNOW. A TRACE OF ADDITIONAL
  ICING. 

* TIMING...PRECIPITATION WILL END TOWARDS DAWN.

* TEMPERATURES...IN THE UPPER 20S.

* WINDS...NORTHWEST 10 TO 20 MPH WITH GUSTS UP TO 40 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW...
SLEET...AND ICE ARE EXPECTED OR OCCURRING. STRONG WINDS ARE ALSO
POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE.

&&

$$

VAZ025-026-036>038-271030-
/O.CON.KLWX.WW.Y.0020.000000T0000Z-121227T1100Z/
AUGUSTA-ROCKINGHAM-NELSON-ALBEMARLE-GREENE-
INCLUDING THE CITIES OF...STAUNTON...WAYNESBORO...HARRISONBURG...
CHARLOTTESVILLE
924 PM EST WED DEC 26 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET...FREEZING 
  RAIN...AND RAIN.

* ACCUMULATIONS...2 TO 4 INCHES OF SNOW. A TRACE OF ADDITIONAL
  ICING. 

* TIMING...PRECIPITATION WILL END AFTER MIDNIGHT.

* TEMPERATURES...IN THE LOWER 30S.

* WINDS...WEST 10 TO 20 MPH WITH GUSTS UP TO 40 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

MDZ003-004-VAZ027>031-039-040-042-501-WVZ052-053-271030-
/O.CON.KLWX.WW.Y.0020.000000T0000Z-121227T1100Z/
WASHINGTON-FREDERICK MD-SHENANDOAH-FREDERICK VA-PAGE-WARREN-
CLARKE-MADISON-RAPPAHANNOCK-LOUDOUN-NORTHERN FAUQUIER-BERKELEY-
JEFFERSON-
INCLUDING THE CITIES OF...HAGERSTOWN...FREDERICK...WINCHESTER...
FRONT ROYAL...WASHINGTON...LEESBURG...WARRENTON...MARTINSBURG...
CHARLES TOWN
924 PM EST WED DEC 26 2012

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST
THURSDAY...

* PRECIPITATION TYPE...A WINTRY MIX OF SNOW...SLEET AND FREEZING 
  RAIN.

* ACCUMULATIONS...2 TO 4 INCHES OF SNOW. A TRACE OF ADDITIONAL
  ICING. 

* TIMING...PRECIPITATION WILL END AFTER MIDNIGHT.

* TEMPERATURES...IN THE LOWER 30S.

* WINDS...NORTHWEST 10 TO 20 MPH WITH GUSTS UP TO 40 MPH.

* IMPACTS...TREACHEROUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A 
  WINTRY MIX OF SNOW...SLEET AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

HTS
476 
WWUS41 KLWX 270648
WSWLWX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
148 AM EST THU DEC 27 2012

MDZ501-VAZ503-WVZ501-503-505-271500-
/O.CAN.KLWX.WS.W.0009.000000T0000Z-121227T1100Z/
/O.NEW.KLWX.WW.Y.0021.121227T0648Z-121227T2300Z/
EXTREME WESTERN ALLEGANY-WESTERN HIGHLAND-WESTERN GRANT-
WESTERN MINERAL-WESTERN PENDLETON-
INCLUDING THE CITIES OF...FROSTBURG...HIGHTOWN...BAYARD...
MOUNT STORM...ELK GARDEN...CIRCLEVILLE
148 AM EST THU DEC 27 2012

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM EST THIS
EVENING...
...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HAS
ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND FREEZING DRIZZLE...
WHICH IS IN EFFECT UNTIL 6 PM EST THIS EVENING. THE WINTER STORM
WARNING HAS BEEN CANCELLED.

* PRECIPITATION TYPE...SNOW AND FREEZING DRIZZLE. 

* ACCUMULATIONS...ADDITIONAL SNOWFALL OF 1 TO 3 INCHES WITH A
  LIGHT GLAZE OF ICE FROM FREEZING DRIZZLE.

* TIMING...SNOW MIXED WITH FREEZING DRIZZLE AT TIMES WILL CONTINUE
  TO AFFECT THE WESTERN SLOPES OF THE ALLEGHENY AND POTOMAC
  HIGHLANDS THROUGH THE DAYTIME HOURS THURSDAY. 

* TEMPERATURES...NEARLY STEADY IN THE UPPER 20S.

* WINDS...NORTHWEST BECOMING 25 TO 35 MPH WITH GUSTS UP TO 50 MPH.

* IMPACTS...HAZARDOUS TRAVEL CONDITIONS ARE EXPECTED DUE TO A
  WINTRY MIX OF SNOW AND ICE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

MDZ502-VAZ504-WVZ050-051-055-502-504-506-270800-
/O.CAN.KLWX.WS.W.0009.000000T0000Z-121227T1100Z/
CENTRAL AND EASTERN ALLEGANY-EASTERN HIGHLAND-HAMPSHIRE-MORGAN-
HARDY-EASTERN GRANT-EASTERN MINERAL-EASTERN PENDLETON-
INCLUDING THE CITIES OF...CUMBERLAND...MONTEREY...MOOREFIELD...
PETERSBURG...KEYSER...FORT ASHBY...FRANKLIN
148 AM EST THU DEC 27 2012

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HAS
CANCELLED THE WINTER STORM WARNING.

ACCUMULATING WINTRY PRECIPITATION HAS COME TO AN END...THEREFORE
THE WINTER STORM WARNING HAS BEEN CANCELLED. BE CAREFUL LATE
TONIGHT INTO EARLY THURSDAY AS COLDER AIR MOVES IN...ALLOWING ANY
MOISTURE FROM PRECIPITATION TO RE-FREEZE RESULTING IN SLICK
SPOTS.

$$

MDZ003-004-VAZ025>031-036>040-042-501-WVZ052-053-270800-
/O.CAN.KLWX.WW.Y.0020.000000T0000Z-121227T1100Z/
WASHINGTON-FREDERICK MD-AUGUSTA-ROCKINGHAM-SHENANDOAH-
FREDERICK VA-PAGE-WARREN-CLARKE-NELSON-ALBEMARLE-GREENE-MADISON-
RAPPAHANNOCK-LOUDOUN-NORTHERN FAUQUIER-BERKELEY-JEFFERSON-
INCLUDING THE CITIES OF...HAGERSTOWN...FREDERICK...STAUNTON...
WAYNESBORO...HARRISONBURG...WINCHESTER...FRONT ROYAL...
CHARLOTTESVILLE...WASHINGTON...LEESBURG...WARRENTON...
MARTINSBURG...CHARLES TOWN
148 AM EST THU DEC 27 2012

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HAS
CANCELLED THE WINTER WEATHER ADVISORY.

ACCUMULATING WINTRY PRECIPITATION HAS COME TO AN END...THEREFORE
THE WINTER WEATHER ADVISORY HAS BEEN CANCELLED. BE CAREFUL LATE
TONIGHT INTO EARLY THURSDAY AS COLDER AIR MOVES IN...ALLOWING ANY
MOISTURE FROM PRECIPITATION TO RE-FREEZE RESULTING IN SLICK
SPOTS.

$$

What forecasters said that day

The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Baltimore/Washington wrote its last area forecast discussion before this winter storm warning went out at Dec 25, 9:13 AM EST, 5 hours 16 minutes earlier.

Area forecast discussion, Dec 25, 9:13 AM EST, 5 hours 16 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
913 AM EST TUE DEC 25 2012

.SYNOPSIS...
WEAK HIGH PRESSURE WILL BUILD ACROSS THE REGION TODAY. ANOTHER STORM
WILL IMPACT THE AREA LATE TONIGHT THROUGH WEDNESDAY. WINTRY
PRECIPITATION IS POSSIBLE WITH THIS SYSTEM...ESPECIALLY NORTH AND
WEST OF WASHINGTON AND BALTIMORE. HIGH PRESSURE WILL RETURN FOR LATE
IN THE WEEK BEFORE A THIRD STORM SYSTEM IMPACTS THE MID ATLANTIC
THIS WEEKEND.

&&

.NEAR TERM /THROUGH TONIGHT/...
LOW PRESSURE CONTINUES WELL OFF THE NJ COAST THIS MORNING...WHILE
HIGH PRESSURE BUILDS ACROSS THE MIDDLE ATLANTIC.

MAIN ISSUE FOR THIS MORNING WILL BE THE DENSE FOG. HAVE EXTENDED
THE ADVISORY UNTIL NOON. THE DENSE FOG WILL LINGER...ESPECIALLY
OVER AREAS THAT STILL HAVE SNOW ON THE GROUND.

OTHERWISE...HAVE ONLY TWEAKED THE TEMP/DEWPOINT GRIDS.

CLDS WL ADVC THIS EVNG. NAM SLOER THAN GFS FOR NXT SYSTEM. CURRENT
FCST SUPPORTS A COMPROMISE SOLN FOR TIMING...BUT PREFER GFS THERMAL
STRUCTURE FOR THE TNGT PD. NO PCPN XPCTD BEFORE MIDNGT. AMS WL BE
COLD ENUF TO START AS SNW ONCE IT DOES...BEFORE WARMER AIR INVADES
FM THE S/E.

&&

.SHORT TERM /WEDNESDAY THROUGH THURSDAY/...
A COMPLEX STORM SYSTEM - AS MOST CUT OFF UPPER LOW-DRIVEN SYSTEMS
ARE - WILL IMPACT MUCH OF EAST COAST WED INTO THU. A COUPLE OF
PHASES OF THIS SYSTEM ARE LIKELY IN STORE FOR THE MID ATLC FROM
EARLY WED THRU MIDDAY THU. THERE WILL BE A BATTLE BETWEEN
SUBFREEZING AIR AND RELATIVELY WARMER AIR THROUGHOUT THE PASSAGE OF
THIS SYSTEM AND AT DIFFERENT LEVELS.

SINCE THE ONSET OF THE PRECIP OVER THE AREA WILL BE DURING THE
PREDAWN HRS WED...MOST OF THE AREA EXPECT POSSIBLY OVER AND NEAR THE
CHESAPEAKE BAY WILL HAVE THE POTENTIAL FOR FROZEN PRECIP - AT LEAST
FOR A COUPLE OF HRS JUST BEFORE AND CLOSE TO DAWN. BOTH THE SLIGHT
INCREASE OF TEMPS AFTER DAWN AND CONTRIBUTIONS FROM A STRENGTHENING
WARM SECTOR WILL BEGIN TO CHANGE PRECIP TO ALL RAIN ALONG AND EAST
OF I-95...ESPECIALLY HEADING THRU THE REMAINDER OF THE MRNG. TEMPS
MAY IN FACT RISE WELL INTO THE 40S BY MID AFTN ACROSS THESE
AREAS...ESPEC LOWER SRN MD/N CNTRL VA. THIS PORTION OF THE I-95
CORRIDOR - INCLUDING THE DC AND BALT METRO AREAS - WILL SEE A DECENT
STORM TOTAL RAINFALL BETWEEN 1.0 AND 1.5 INCHES...W/ LOCALLY HIGHER
AMNTS BY THE TIME THE SYSTEM MOVES OFF THE COAST THU MRNG.

CONDITIONS BACK ACROSS THE PIEDMONT...FOOTHILLS...BLUE RIDGE AND
APLCNS ARE MORE UNCERTAIN FOR THE PASSAGE OF THIS SYSTEM. A COUPLE
OF DEGREES WILL MAKE A BIG DIFFERENCE ACROSS THESE AREAS W/
POTENTIALLY A FEW DIFFERENT PTYPE CHANGES WILL OCCUR IN A 24-36 HR
PERIOD. LIKE W/ THE CHRISTMAS EVE LOW PRESSURE SYSTEM...MUCH OF THE
INCOMING PRECIP WILL LIKELY START OFF AS SNOW FROM SW TO NE ACROSS
THE AREA EARLY WED MRNG. THE RELATIVELY DRY NELY FLOW WILL HAVE BEEN
IN PLACE FOR A FEW HRS BEFORE PRECIP ONSET...ALLOWING FOR GOOD
ENOUGH COOLING FOR ALL-SNOW TO START. ONCE THE CENTER OF THE STORM
SYSTEM APPROACHES LATER IN THE AFTN HOWEVER...MORE OF THE DYNAMICS
OF THE SYSTEM WILL BOTH MOISTEN THE LOW LEVELS AND WARM UP THE
BOUNDARY LAYER OVERTOP A DEVELOPED COLD AIR DAMMING SITUATION NEAR
AND WEST OF THE BLUE RIDGE.

A SHARP TEMP GRADIENT WILL SET-UP OVER THE MD/VA PIEDMONT...KEEPING
A COLD RAIN OVER THE WRN SUBURBS - A MIX OF SLEET/SNOW AND FZRA
HEADING INTO THE FOOTHILLS/BLUE RIDGE AND SHENANDOAH VLY. SEVERAL
HRS OF FZRA POSSIBLE ACROSS A GOOD PORTION OF THE SHENANDOAH VLY.
SEVERAL PHASE CHANGES OF FALLING PRECIP MAY INHIBIT MAXIMUM ICE
ACCRETION ON EXPOSED SFCS...THOUGH MANY OF THE SHELTERED VLYS STILL
EXPECTED TO RECEIVE MEASURABLE ICE ACCRETIONS AND SNOW ACCUMULATION
BOTH AT THE BEGINNING AND TOWARD THE END OF THE SYSTEM'S PASSAGE.
STILL ENOUGH UNCERTAINTY IN THE LOCATIONS AND PTYPE POTENTIAL FOR
AREAS UNDER THE CURRENT WS WATCH...SO WILL MONITOR GUIDANCE TRENDS
INTO THE REST OF THE MRNG HRS BEFORE CONVERTING THE WATCH HEADLINE
INTO OTHER WINTER-RELATED HAZARD MSGS.

&&

.LONG TERM /THURSDAY NIGHT THROUGH MONDAY/...
AS THE SYSTEM TRANSFERS ENERGY TO THE NEW SFC LOW OVER THE ERN
SEABOARD FROM THE OHIO VLY LOW...A NEW PHASE SHIFT WILL OCCUR W/IN
THIS SYSTEM AND IT WILL BEGIN TO DRIFT MORE DUE WEST AND DIRECTLY
OVER THE CWA. BY EARLY THU...THE UPPER LOW WILL BE MOVING OFF THE
DELMARVA COAST AND CONDITIONS WILL GRADUALLY DRY OUT ACROSS THE
REGION. GUSTY AND DRIER NWLY WINDS WILL ARRIVE AND MAKE THU A FAIRLY
WINDY DAY AND FEELING COLD...W/ SUBFREEZING WIND CHILL VALUES DURING
THE MIDDLE OF THE DAY.

ANOTHER ONE-DAY BREAK ON FRIDAY...W/ QUIET HIGH PRESSURE CONDITIONS
CREATING THE TRANSITION SET-UP FOR ANOTHER STORM SYSTEM ON SATURDAY.
LONG RANGE GUIDANCE IS TRENDING PROGRESSIVELY STRONGER W/ THIS NEXT
SYSTEM...ESPECIALLY BECAUSE OF THE CURRENT FORECAST TRACK TO MOVE
OFF THE CAROLINA COAST AND BECOME A STRONG COASTAL LOW PRESSURE
SYSTEM. AN OPEN AND COLDER REINFORCING UPPER TROUGH ASSOCIATED W/
THIS SYSTEM WOULD LIKELY CREATE A BETTER POTENTIAL FOR MORE
WIDESPREAD FROZEN PRECIP ACROSS THE AREA THAN THE WED STORM SYSTEM -
BUT THIS WOULD DEPEND ON THE TRACK AND TIMING OF THESE FEATURES.

&&

.AVIATION /14Z TUESDAY THROUGH SATURDAY/...
EXTENDED THE DENSE FOG ADVISORY UNTIL NOON. CONDITIONS WILL
IMPROVE THROUGH THE LATE MORNING...BUT FOG WILL LINGER ACROSS
AREAS THAT STILL HAVE SNOW ON THE GROUND.

AFTER THE FOG BURNS OFF...NO SIGNIFICANT CIG/VSBY RESTRICTIONS
ANTICIPATED.

VFR WL CONT THRU THIS EVNG. CLDS WL INCR AGN OVNGT AHD OF NXT LOPRES
SYSTEM. AT ONSET...PTYPE WL BE EITHER SNW OR MIXED. DCA/BWI/MTN HV
BEST OPPORTUNITY TO REMAIN ABV FRZG. IF CONDS DIP BLO VFR IN THE
06-12Z WED TIMEFRAME...CHO WL BE THE MOST LKLY LOCATION.

A STRONG STORM SYSTEM WILL MAKE ITS WAY UP THE APLCNS EARLY WED.
FOR MUCH OF THE DAY WED INTO THE OVERNIGHT HRS...THIS LOW PRESSURE
AREA WILL MOVE ACROSS THE MID ATLC REGION - W/ A RAIN/SNOW
POTENTIAL W OF THE THE BLUE RIDGE AND MAINLY RAIN EXPECTED E OF
THE MTNS AND TOWARD THE I-95 CORRIDOR... ESPEC WED MRNG. RAIN WILL
BE MORE LIKELY FOR AREAS E OF THE MTNS...LINGERING FOR THE
REMAINDER OF THE DAY. STEADY LIGHT TO MODERATE RAIN...W/ EMBEDDED
AREAS OF HEAVIER SHOWERS WILL AFFECT THE PIEDMONT AND I-95
CORRIDOR THRU LATE WED NIGHT. THIS FEATURE AND ASSOCIATED PRECIP
WILL LIKELY MOVE OFF THE COAST ON THU...LEAVING A COUPLE OF
WINDY/BREEZY DAYS IN ITS WAKE.

&&

.MARINE...
W/NW FLOW AOB 10 KT TDA. WNDS VEER NELY IN ADVC OF NXT STORM SYSTEM
TNGT. LLVL INFLOW INCREASES...BUT MOMENTUM TRANSFER LESS THAN IDEAL.
WL CAP WNDS AT 15 KT...SPCLY FOR THE OVNGT HRS.

A FAST-MOVING AND POTENT STORM SYSTEM WILL MOVE OVER THE AREA ON WED
AND OFF THE COAST BY EARLY THU. THE ASSOCIATED SFC LOW WILL MOVE
OVER THE WATERS LATE WED NIGHT...W/ BREEZY NE-ELY FLOW INCREASING
OUT AHEAD OF THE LOW DURING THE DAYTIME HRS WE - SOLID SCA
CONDITIONS EXPECTED DURING THIS TIME. WINDS WILL THEN SWITCH TOWARD
SLY OVERNIGHT AS THE LOW TRANSITIONS OFF THE COAST. BY DAYBREAK ON
THU...W-NWLY WINDS WILL PICK UP AND GUST WELL INTO SCA AND POSSIBLY
GALE RANGES THROUGHOUT THE DAYTIME HRS. WINDS WILL DROP OFF THU
NIGHT AND REMAIN RELATIVELY LIGHT INTO THE WEEKEND AND AHEAD OF THE
NEXT LOW PRESSURE SYSTEM ON SAT.

&&

.TIDES/COASTAL FLOODING...
AN ONSHORE FLOW WILL INCREASE AS LOW PRESSURE PASSES THROUGH THE
WATERS WEDNESDAY INTO WEDNESDAY NIGHT. MINOR COASTAL FLOODING IS
POSSIBLE...PARTICULARLY NEAR TIMES OF HIGH TIDE.

&&

.LWX WATCHES/WARNINGS/ADVISORIES...
DC...NONE.
MD...WINTER STORM WATCH FROM LATE TONIGHT THROUGH LATE WEDNESDAY
     NIGHT FOR MDZ003-004-501-502.
     DENSE FOG ADVISORY UNTIL NOON EST TODAY FOR MDZ003>007-009-010.
VA...WINTER STORM WATCH FROM LATE TONIGHT THROUGH LATE WEDNESDAY
     NIGHT FOR VAZ025>031-036>040-042-501-503-504.
     DENSE FOG ADVISORY UNTIL NOON EST TODAY FOR VAZ025>031-036>040-
     042-050>052-501-502.
WV...WINTER STORM WATCH FROM LATE TONIGHT THROUGH LATE WEDNESDAY
     NIGHT FOR WVZ050>053-055-501>506.
     DENSE FOG ADVISORY UNTIL NOON EST TODAY FOR WVZ052-053.
MARINE...SMALL CRAFT ADVISORY FROM 6 AM TO 6 PM EST WEDNESDAY FOR
     ANZ530>543.

&&

UPDATE...LISTEMAA
Hazardous weather outlook, Dec 25, 1:28 PM EST, 1 hour 1 minute before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
128 PM EST TUE DEC 25 2012

ANZ530>543-DCZ001-MDZ006-007-011-013-014-016>018-VAZ052>057-
261000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND MD-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT MD-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH MD-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT MD-
CHESAPEAKE BAY FROM DRUM POINT MD TO SMITH POINT VA-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD MD-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND MD-
TIDAL POTOMAC FROM COBB ISLAND MD TO SMITH POINT VA-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
CHESTER RIVER TO QUEENSTOWN MD-EASTERN BAY-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
PATUXENT RIVER TO BROOMES ISLAND MD-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH
ISLAND-DISTRICT OF COLUMBIA-NORTHERN BALTIMORE-HARFORD-
SOUTHERN BALTIMORE-PRINCE GEORGES-ANNE ARUNDEL-CHARLES-ST. MARYS-
CALVERT-PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX-
ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA-
KING GEORGE-
128 PM EST TUE DEC 25 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MARYLAND PORTION OF THE
CHESAPEAKE BAY...TIDAL POTOMAC RIVER...AND ADJACENT COUNTIES IN
CENTRAL MARYLAND AND NORTHERN VIRGINIA AS WELL AS THE DISTRICT OF
COLUMBIA.

.DAY ONE...THIS AFTERNOON AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

A STORM SYSTEM WILL CROSS THE AREA WEDNESDAY AND WEDNESDAY NIGHT.
PRECIPITATION MAY BEGIN AS A WINTRY MIX EARLY WEDNESDAY MORNING
BEFORE IT CHANGES OVER TO RAIN LATER WEDNESDAY MORNING OR THE
AFTERNOON. A CHANGE IN THE TRACK OF THE STORM WOULD ALTER WHEN THE
CHANGEOVER OCCURS AND WINTRY ACCUMULATIONS...SO PLEASE MONITOR THE
FORECAST FOR UPDATES.

A SMALL CRAFT ADVISORY IS IN EFFECT FOR THE WATERS OF THE MARYLAND
CHESAPEAKE BAY AND TIDAL POTOMAC RIVER ON WEDNESDAY. STRONG WINDS
ARE EXPECTED AGAIN ON THURSDAY. SMALL CRAFT ADVISORIES WILL BE
POSSIBLE THURSDAY INTO FRIDAY...WITH GALES POSSIBLE WEDNESDAY
NIGHT THROUGH THURSDAY.

TIDAL FLOODING IS POSSIBLE WEDNESDAY AFTERNOON INTO THURSDAY.

THE NEXT STORM SYSTEM WILL LIKELY IMPACT THE MID ATLANTIC REGION
NEXT WEEKEND. AT THIS EARLY STAGE...RAIN OR SNOW IS POSSIBLE
DEPENDING ON THE STORM TRACK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

MDZ003>005-009-010-501-502-VAZ025>031-036>040-042-050-051-501>504-
WVZ050>053-055-501>506-261000-
WASHINGTON-FREDERICK MD-CARROLL-MONTGOMERY-HOWARD-
EXTREME WESTERN ALLEGANY-CENTRAL AND EASTERN ALLEGANY-AUGUSTA-
ROCKINGHAM-SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE-NELSON-
ALBEMARLE-GREENE-MADISON-RAPPAHANNOCK-LOUDOUN-ORANGE-CULPEPER-
NORTHERN FAUQUIER-SOUTHERN FAUQUIER-WESTERN HIGHLAND-
EASTERN HIGHLAND-HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-HARDY-
WESTERN GRANT-EASTERN GRANT-WESTERN MINERAL-EASTERN MINERAL-
WESTERN PENDLETON-EASTERN PENDLETON-
128 PM EST TUE DEC 25 2012

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...THIS AFTERNOON AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

A STORM SYSTEM WILL CROSS THE AREA LATE TUESDAY NIGHT THROUGH
WEDNESDAY NIGHT. A WINTER STORM WATCH IS IN EFFECT FOR COUNTIES
ALONG AND WEST OF THE BLUE RIDGE AND FREDERICK COUNTY IN MARYLAND.
PLEASE SEE /WBCWSWLWX/ FOR DETAILS. FARTHER EAST OF THE WATCH....
PRECIPITATION MAY BEGIN AS A WINTRY MIX AT THE ONSET BEFORE
CHANGING OVER TO RAIN DURING THE DAY WEDNESDAY. A CHANGE IN THE
TRACK OF THE STORM WOULD ALTER WHEN THE CHANGEOVER OCCURS AND
WINTRY ACCUMULATIONS...SO PLEASE MONITOR THE FORECAST FOR UPDATES.

STRONG WINDS ARE POSSIBLE THURSDAY.

ACCUMULATING SNOW IS EXPECTED ALONG THE WESTERN SLOPES OF THE
ALLEGHENY FRONT THURSDAY AND FRIDAY.

THE NEXT STORM SYSTEM WILL LIKELY IMPACT THE MID ATLANTIC REGION
NEXT WEEKEND. AT THIS EARLY STAGE...RAIN OR SNOW IS POSSIBLE
DEPENDING ON THE STORM TRACK.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED TONIGHT THROUGH WEDNESDAY NIGHT.
ICING OR SNOW REPORTS WOULD BE APPRECIATED.

The office that day

Everything else NWS Baltimore/Washington issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 25, 1:13 AM ESTDense Fog AdvisoryLWXBerkeley, Jefferson11 hr
Dec 25, 2:29 PM ESTWinter Weather AdvisoryLWXBerkeley, Grant, Hampshire, Hardy, Jefferson, Mineral and 2 more35 hr
Dec 25, 3:56 AM ESTSmall Craft AdvisoryLWX51 hr

Nearby

Winter Storm Warnings in West Virginia, 2012Winter Storm Warnings in Maryland, 2012Winter Storm Warnings in Virginia, 2012Every winter storm warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.