415
WWUS41 KLWX 011430
WSWLWX
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
930 AM EST MON DEC 1 2025
..FIRST WIDESPREAD WINTER EVENT OF THE SEASON
.PRECIPITATION IS EXPECTED TO OVERSPREAD THE AREA AFTER MIDNIGHT
TONIGHT FROM SOUTHWEST TO NORTHEAST. WHILE PRECIPITATION IS LIKELY
TO START AS SNOW AREAWIDE, IT IS EXPECTED TO MIX WITH AND CHANGE TO
SLEET AND FREEZING RAIN FOR MOST OF THE AREA. LOCATIONS ALONG AND
SOUTH OF US-50/I-66 LIKELY END THE EVENT AS RAIN AS TEMPERATURES
WARM THROUGH THE MORNING. AREAS ALONG THE MASON-DIXON LINE ARE MOST
LIKELY TO REMAIN ALL SNOW THROUGH THE EVENT, BUT THAT REMAINS
UNCERTAIN GIVEN EXACT LOW TRACK. THE TUESDAY MORNING COMMUTE COULD
BE IMPACTED FOR ALL AREAS IN THE WINTER WEATHER ADVISORY. UPDATES TO
THE FORECAST ARE LIKELY, SO PLEASE REMAIN WEATHER AWARE FOR THE
FIRST WIDESPREAD WINTER EVENT OF THE SEASON.
MDZ503-505-012230-
/O.EXB.KLWX.WW.Y.0022.251202T1000Z-251202T1500Z/
NORTHWEST MONTGOMERY-NORTHWEST HOWARD-
930 AM EST MON DEC 1 2025
...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM TO 10 AM EST
TUESDAY...
* WHAT...MIXED PRECIPITATION EXPECTED. TOTAL SNOW AND SLEET
ACCUMULATIONS UP TO ONE INCH AND ICE ACCUMULATIONS AROUND A LIGHT
GLAZE.
* WHERE...NORTHWEST HOWARD AND NORTHWEST MONTGOMERY COUNTIES.
* WHEN...FROM 5 AM TO 10 AM EST TUESDAY.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS. THE HAZARDOUS
CONDITIONS COULD IMPACT THE TUESDAY MORNING COMMUTE.
* ADDITIONAL DETAILS...PRECIPITATION WILL BEGIN AS A MIX OF SNOW,
SLEET, AND FREEZING RAIN EARLY TUESDAY MORNING BEFORE
TRANSITIONING TO PLAIN RAIN BY LATE MORNING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS FOR THE STATE YOU ARE CALLING FROM CAN BE OBTAINED BY
CALLING 5 1 1.
MDZ501-502-509-510-WVZ501-503-504-012230-
/O.CON.KLWX.WW.Y.0022.251202T0600Z-251202T1800Z/
EXTREME WESTERN ALLEGANY-CENTRAL AND EASTERN ALLEGANY-WESTERN
GARRETT-EASTERN GARRETT-WESTERN GRANT-WESTERN MINERAL-EASTERN
MINERAL-
930 AM EST MON DEC 1 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 AM TO 1 PM EST
TUESDAY...
* WHAT...MIXED PRECIPITATION EXPECTED. TOTAL SNOW AND SLEET
ACCUMULATIONS BETWEEN 1 AND 3 INCHES, WITH LOCALLY UP TO 4 INCHES
NEAR THE MASON-DIXON LINE. ICE ACCUMULATIONS UP TO ONE TENTH OF AN
INCH.
* WHERE...PORTIONS OF WESTERN MARYLAND AND EASTERN WEST VIRGINIA.
* WHEN...FROM 1 AM TO 1 PM EST TUESDAY.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS. THE HAZARDOUS
CONDITIONS WILL LIKELY IMPACT THE TUESDAY MORNING COMMUTE.
* ADDITIONAL DETAILS...PRECIPITATION IS EXPECTED TO OVERSPREAD THE
AREA AFTER MIDNIGHT TONIGHT. PRECIPITATION IS EXPECTED TO START AS
SNOW BEFORE MIXING WITH SLEET AND FREEZING RAIN. SHOULD
PRECIPITATION STAY ALL SNOW OR SNOW FOR A LONGER PERIOD OF TIME,
LOCALLY HIGHER SNOWFALL AMOUNTS WOULD BE POSSIBLE. ADDITIONAL
UPSLOPE SNOW SHOWERS ARE EXPECTED TUESDAY AFTERNOON FOR LOCATIONS
WEST OF THE ALLEGHENY FRONT WHICH COULD PRODUCE A COATING TO INCH
OR SO OF ADDITIONAL ACCUMULATION.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS FOR THE STATE YOU ARE CALLING FROM CAN BE OBTAINED BY
CALLING 5 1 1.
VAZ025>031-036>040-050-051-501-503>505-507-508-WVZ050-055-502-505-
506-012230-
/O.CON.KLWX.WW.Y.0022.251202T0600Z-251202T1700Z/
AUGUSTA-ROCKINGHAM-SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE-
NELSON-ALBEMARLE-GREENE-MADISON-RAPPAHANNOCK-ORANGE-CULPEPER-
NORTHERN FAUQUIER-WESTERN HIGHLAND-EASTERN HIGHLAND-WESTERN
LOUDOUN-NORTHERN VIRGINIA BLUE RIDGE-CENTRAL VIRGINIA BLUE RIDGE-
HAMPSHIRE-HARDY-EASTERN GRANT-WESTERN PENDLETON-EASTERN PENDLETON-
930 AM EST MON DEC 1 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 AM TO NOON EST
TUESDAY...
* WHAT...MIXED PRECIPITATION EXPECTED, WITH A MAJORITY OF THE
PRECIPITATION EXPECTED IN THE FORM OF FREEZING RAIN. TOTAL SNOW
AND SLEET ACCUMULATIONS UP TO ONE INCH AND ICE ACCUMULATIONS
AROUND ONE TENTH OF AN INCH, WITH UPWARDS OF TWO TENTHS OF AN INCH
POSSIBLE ON THE HIGHER RIDGES.
* WHERE...PORTIONS OF CENTRAL, NORTHERN, NORTHWEST, AND WESTERN
VIRGINIA AND EASTERN WEST VIRGINIA.
* WHEN...FROM 1 AM TO NOON EST TUESDAY.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS. THE HAZARDOUS
CONDITIONS COULD IMPACT THE TUESDAY MORNING COMMUTE.
* ADDITIONAL DETAILS...PRECIPITATION IS EXPECTED TO OVERSPREAD THE
AREA AFTER MIDNIGHT TONIGHT. PRECIPITATION IS EXPECTED TO START
BRIEFLY AS SNOW BEFORE MIXING WITH AND CHANGING OVER TO SLEET AND
FREEZING RAIN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS FOR THE STATE YOU ARE CALLING FROM CAN BE OBTAINED BY
CALLING 5 1 1.
MDZ003>006-507-WVZ051>053-012230-
/O.CON.KLWX.WW.Y.0022.251202T0800Z-251202T1800Z/
WASHINGTON-FREDERICK MD-CARROLL-NORTHERN BALTIMORE-NORTHWEST
HARFORD-MORGAN-BERKELEY-JEFFERSON-
930 AM EST MON DEC 1 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 AM TO 1 PM EST
TUESDAY...
* WHAT...MIXED PRECIPITATION EXPECTED. TOTAL SNOW AND SLEET
ACCUMULATIONS OF 1 TO 2 INCHES, WITH LOCALLY HIGHER AMOUNTS
UPWARDS OF 4 INCHES POSSIBLE NEAR THE MASON-DIXON LINE AND HIGHER
ELEVATIONS SUCH AS PARR'S RIDGE. ICE ACCUMULATIONS UP TO ONE TENTH
OF AN INCH.
* WHERE...PORTIONS OF NORTH CENTRAL AND NORTHERN MARYLAND AND
PANHANDLE WEST VIRGINIA.
* WHEN...FROM 3 AM TO 1 PM EST TUESDAY.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS. THE HAZARDOUS
CONDITIONS COULD IMPACT THE TUESDAY MORNING COMMUTE.
* ADDITIONAL DETAILS...PRECIPITATION IS EXPECTED TO OVERSPREAD THE
AREA AFTER MIDNIGHT TONIGHT. PRECIPITATION IS EXPECTED TO START AS
SNOW BEFORE MIXING WITH SLEET AND FREEZING RAIN. SHOULD
PRECIPITATION STAY ALL SNOW OR SNOW FOR A LONGER PERIOD OF TIME,
LOCALLY HIGHER SNOWFALL AMOUNTS WOULD BE POSSIBLE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. THE LATEST ROAD
CONDITIONS FOR THE STATE YOU ARE CALLING FROM CAN BE OBTAINED BY
CALLING 5 1 1.
DHOF
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