Winter Storm, Loudoun
- When
- February 5, 12:00 AM EST to 12:00 PM EST
- Where
- Loudoun forecast zone
- Reported by
- TRAINED SPOTTER
Low pressure moved from the North Carolina coast to the Jersey Shore on the 5th and brought rain and snow to the Mid-Atlantic region between midnight and noon. Temperatures were cold enough across extreme Northern Virginia for the precipitation to fall mainly as snow.
Every event with a place to put it; 6 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS LWX wrote it up.
Low pressure moved from the North Carolina coast to the Jersey Shore on the 5th and brought rain and snow to the Mid-Atlantic region between midnight and noon. Temperatures were cold enough across extreme Northern Virginia for the precipitation to fall mainly as snow. The heaviest snow fell near the ridges of western Loudoun County where up to 5 inches was recorded. A handful of weather related traffic accidents were reported by Loudoun County officials. Surrounding counties reported between 1 and 3 inches of accumulation by noon. South of a line from Luray to Manassas a rain/snow mix was reported which resulted in little or no accumulation.
The local office's own words before the first event, 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 the first event at Feb 4, 9:00 PM EST, 3 hours earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON 900 PM EST SUN FEB 4 2001 ONLY SLIGHT CHANGES MADE TO CURRENT PACKAGE. MESOETA HAS TRENDED MORE TOWARD AVN WITH HIGHER QPF. THIS GIVES MORE CONFIDENCE THAT AVN IS MODEL OF CHOICE WITH THIS STORM. AVN HAS 700MB VVEL DEVELOP RAPIDLY OVER E CWA BY 06Z AND RADAR ALREADY SHOWING FIRST -RA DEVELOPING SE OF DC. WILL TAKE AFT MIDNIGHT PRECIP TIMING. 1000-500 THICKNESS FCST OVERNIGHT SHOWING 540 LINE STRETCHING FROM ROUGHLY WAYNESBORO TO IAD TO JUST N OF BALTIMORE. THEREFORE WILL ADD RAIN/SNOW MIX TO CENT SHEN VALLEY AND EXTEND MIX INTO N AND W SUBURBS OF BALTIMORE. BUFKIT MESO ETA SOUNDINGS ALSO SHOW TEMP PROFILE HOVERING AROUND 0C THROUGH 900 MB WHICH MAKES RAIN/SNOW TOO CLOSE TO CALL IN THIS AREA. WILL MENTION INCH OR LESS OF ACCUM JUST IN CASE TEMPS GET COLD ENOUGH OVERNIGHT FOR -SN TO STICK. CONS TO ACCUMULATION...WET SNOW AND RELATIVELY WARM GROUND TEMPS. STILL LOOKS LIKE RAIN EVENT FROM BWI TO DCA TO CHO AND EASTWARD WITH WARMER MARINE AIR FILTERING IN ON E WINDS. EXPECTING RAINFALL TOTALS OF 0.40 TO 0.80 IN THIS AREA THRU MON AFT. QPF VALUES ARE STILL VERY LOW WEST OF THE BLUE RIDGE...LESS THAN 0.10 IN. THIS AREA COLD ENOUGH FOR -SHSN BUT LACK OF MOISTURE WILL KEEP SNOWFALL TO A MINIMUM. ZONES WILL BE OUT BEFORE 930PM. WILL SEND OUT SPS UPDATE BY 11 PM. .LWX... DC...NONE. MD...NONE. VA.!..NONE. WV...NONE. MMARGRAF
DCZ001-MDZ002>007-009>011-013-014-016>018-VAZ021-025>031-036>042- 050>057-WVZ048>055-050900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE-WASHINGTON 945 PM EST SUN FEB 4 2001 ...COASTAL STORM TO AFFECT REGION OVERNIGHT THROUGH MIDDAY MONDAY... LOW PRESSURE OFF THE COAST OF SOUTH CAROLINA WILL MOVE NORTH ALONG THE ATLANTIC SEABOARD OVERNIGHT AND MONDAY. THIS LOW WILL REACH THE NORTH CAROLINA/VIRGINIA BORDER BY SUNRISE AND BE LOCATED OFF THE NEW JERSEY SHORE BY MONDAY EVENING. PRECIPITATION WILL SPREAD INTO THE REGION OVERNIGHT AS THIS LOW PASSES BY THEN COME TO AN END AROUND MIDDAY MONDAY FROM SOUTHWEST TO NORTHEAST. THE HEAVIEST PRECIPITATION WILL FALL ACROSS EASTERN AREAS WHICH WILL BE CLOSER TO THE PATH OF THIS LOW. EAST OF A LINE FROM BALTIMORE...WASHINGTON D.C. TO CHARLOTTESVILLE THE PRECIPITATION WILL FALL AS RAIN. RAINFALL TOTALS WILL AVERAGE FROM 0.35 INCHES WEST TO 0.70 INCHES EAST. FROM THIS LINE WESTWARD TO A LINE FROM FREDERICK TO LURAY TO STAUNTON...TEMPERATURES WILL FALL TO NEAR FREEZING OVERNIGHT. A MIX OF RAIN AND SNOW IS POSSIBLE IN THIS AREA AND PRECIPITATION TOTALS OF OF 0.10 AND 0.35 INCHES ARE EXPECTED. BECAUSE ANY SNOW THAT FALLS WILL BE VERY WET AND GROUND TEMPERATURES ARE RELATIVELY WARM...ACCUMULATIONS WILL BE HELD TO AN INCH OR LESS. FROM THE FREDERICK TO LURAY TO STAUNTON LINE WEST TO THE SPINE OF THE APPALACHIANS...PRECIPITATION AMOUNTS WILL AVERAGE ONE TENTH OF AN INCH OR LESS. LIGHT SNOW IS EXPECTED IN THIS REGION AND ACCUMULATIONS WILL RANGE FROM UP TO TWO INCHES IN THE NORTHERN SHENANDOAH VALLEY TO A TRACE NEAR THE RIDGES OF THE APPALACHIANS. STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER DETAILS OR UPDATES. FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT HTTP://WWW.NWS.NOAA.GOV/ER/LWX MMARGRAF
The national radar mosaic for the moment the first event began.
8 winter weather, 1 winter storm. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Virginia in 2001Every state in 2001This day in weather historyWarnings in Virginia, February 2001
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5233449, 5233450, 5233451, 5233452, 5233453, 5233454, 5233455, 5233456, 5233523.