Light winds and residual moisture allowed fog to develop in the evening of January 26th. The fog dissipated early on January 27th.
Every event with a place to put it; 18 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.
Light winds and residual moisture allowed fog to develop in the evening of January 26th. The fog dissipated early on January 27th.
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 Jan 26, 2:17 PM EST, 5 hours 43 minutes earlier.
Area Forecast Discussion National Weather Service Baltimore MD/Washington DC 217 PM EST Tue Jan 26 2021 .SYNOPSIS... High pressure will briefly return by Wednesday, but an area of low pressure will graze the area to the south Wednesday night into Thursday. High pressure will briefly return again Friday into Saturday before another storm system approaches for late in the weekend into early next week. && .NEAR TERM /THROUGH TONIGHT/... Clouds and patchy fog will linger through tonight for most outside of the Shenandoah River Valley in Virginia and portions of eastern West Virginia. With moisture lingering in the lower atmosphere, patchy fog may develop, especially east of the Blue Ridge and Catoctin Mountains. Some of the fog could be dense, and with temperatures dropping to near freezing tonight, patchy black ice is possible. Farther to the west, patchy freezing drizzle, light snow or freezing fog are possible along and west of the Allegheny Front as a weak disturbance interacts with the terrain and lingering moisture overnight. && .SHORT TERM /WEDNESDAY THROUGH THURSDAY NIGHT/... High pressure will briefly pass near the region Wednesday, but an upper-level trough will approach by Wednesday evening. This trough will spawn a surface low pressure center well to our south, but forcing from the parent trough will likely result in some light snow across the foothills and adjacent valley/piedmont locations of west-central Virginia Wednesday night. Depending on if there is enough forcing and moisture to overcome lower-level dry air, a few flurries or a little light snow may make it as far north as the I-66/US-50 corridor in Virginia and up to near Baltimore in Maryland, but the probabilities here are much lower. After low pressure departs to our south and east Thursday, a strong northwesterly flow will ensue. Blustery and cold conditions are expected with wind gusts in excess of 30 mph keeping wind chill temperatures in the teens and 20s all day. && .LONG TERM /FRIDAY THROUGH TUESDAY/... On Friday, we'll be located between a strong area of low pressure over the Atlantic Ocean and high pressure building into the Great Lakes. Aloft, we'll have strong northwesterly flow, with a potent mid-level disturbance of Arctic origin diving southward off the New England Coast. This disturbance will drive a reinforcing surge of Arctic air into the region, with 850 hPa temps crashing to around, or possibly even below -15 C. Even in a well-mixed airmass, this would only yield daytime highs in the 20s to lower 30s across much of the area. In addition to the cold air, it will be very windy on Friday. Gusts in excess of 30 mph are possible, especially during the morning hours. As a result, wind chills may struggle to reach 20. Overall, it looks like Friday is shaping up to be one of, if not the coldest day we've had locally since 2019. High pressure will build overhead Friday Night, setting the stage for an ideal radiational cooling night. Lows in the teens appear likely for most, with single digits possible in higher elevation mountain valleys. High pressure will slide offshore during the day Saturday, leading to another day of cold temperatures (highs in the 30s) and quiet weather conditions. A complex weather system will approach the area during the Sunday into Monday time frame. Both deterministic and ensemble model guidance show a wide range of possible solutions, so confidence in the forecast details during that time period is low. However, with cold air initially in place and strong high pressure to the north, at least some wintry precipitation appears likely on the front end of the system (Sunday into Sunday Night). Looking beyond that initial surge of warm advection precipitation, confidence decreases substantially. Some solutions show a relatively minor event, while others (most notably the deterministic Euro) show a more significant winter storm. We'll continue to monitor this system over the upcoming days. && .AVIATION /19Z TUESDAY THROUGH SUNDAY/... Moisture is trapped in the lower levels of the atmosphere with little to no wind to chase it out. The visibility may lift into MVFR or briefly VFR between 18z and 24z, but will likely fall again overnight. Dense fog is possible, as is patchy black ice due to temperatures dropping to near or below freezing after 06z. Otherwise, a low ceiling at FL005-010 is forecast to persist through much of the night, and may even drop to LIFR. Conditions should improve to VFR by midday Wednesday. A disturbance crossing the area may bring some spotty light snow Wednesday night into Thursday morning before clearing by Thursday afternoon. Otherwise, a northwesterly flow is anticipated with a few gusts of 15 to 25 knots possible. VFR conditions are expected at the terminals on both Friday and Saturday. The wind will be gusty out of the northwest Friday. && .MARINE... High pressure briefly building over the region should keep the wind light and variable through early Wednesday. There may be a few northwesterly gusts of 15 to 20 knots during the day on Wednesday as high pressure retreats, but the gradient overall looks marginal. There is a better chance of wind gusts picking up out of the northwest to 20 to 25 knots Wednesday night, increasing further on Thursday to near gale force. Small Craft Advisories (SCAs) will likely be needed on Friday, with Gale Warnings a possibility. The wind should gradually subside to sub-SCA levels by Saturday morning. && .TIDES/COASTAL FLOODING... Tides are running a little elevated, but should fall short of minor flooding thresholds. An increasing northwesterly flow beginning early Wednesday will cause water levels to decrease. && .LWX WATCHES/WARNINGS/ADVISORIES... DC...None. MD...None. VA...None. WV...None. MARINE...None. && SYNOPSIS...DHOF NEAR TERM...DHOF SHORT TERM...DHOF LONG TERM...KJP AVIATION...DHOF/KJP MARINE...DHOF/KJP TIDES/COASTAL FLOODING...DHOF
Hazardous Weather Outlook National Weather Service Baltimore MD/Washington DC 650 PM EST Tue Jan 26 2021 ANZ530>543-DCZ001-MDZ008-011-013-014-016>018-504-506-508- VAZ052>057-280000- 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-Cecil-Southern Baltimore- Prince Georges-Anne Arundel-Charles-St. Marys-Calvert- Central and Southeast Montgomery-Central and Southeast Howard- Southeast Harford-Prince William/Manassas/Manassas Park-Fairfax- Arlington/Falls Church/Alexandria-Stafford-Spotsylvania- King George- 650 PM EST Tue Jan 26 2021 This Hazardous Weather Outlook is for the Maryland portion of the Chesapeake Bay, Tidal Potomac River, and I-95 corridor through central Maryland, northern Virginia, and District of Columbia. .DAY ONE...Tonight Patchy dense fog may develop tonight. With temperatures dropping to near or below freezing, patchy black ice is possible. .DAYS TWO THROUGH SEVEN...Wednesday through Monday Gale Warnings may be needed Thursday into Friday. There is a slight winter storm threat for Sunday into Monday. If the threat materializes, it may cause travel disruptions. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. MDZ003>006-503-505-507-VAZ025>031-036>040-050-051-501-502-505>508- WVZ050>053-055-280000- Washington-Frederick MD-Carroll-Northern Baltimore- Northwest Montgomery-Northwest Howard-Northwest Harford-Augusta- Rockingham-Shenandoah-Frederick VA-Page-Warren-Clarke-Nelson- Albemarle-Greene-Madison-Rappahannock-Orange-Culpeper- Northern Fauquier-Southern Fauquier-Western Loudoun- Eastern Loudoun-Northern Virginia Blue Ridge- Central Virginia Blue Ridge-Hampshire-Morgan-Berkeley-Jefferson- Hardy- 650 PM EST Tue Jan 26 2021 This Hazardous Weather Outlook is for portions of eastern West Virginia, northern and central Virginia, and central and western Maryland. .DAY ONE...Tonight Patchy dense fog may develop tonight, especially east of the Blue Ridge and Catoctin Mountains. With temperatures dropping to near or below freezing, patchy black ice is possible. .DAYS TWO THROUGH SEVEN...Wednesday through Monday There is a slight winter storm threat for Sunday into Monday. If the threat materializes, it may cause travel disruptions. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. MDZ001-501-502-VAZ503-504-WVZ501>506-280000- Garrett-Extreme Western Allegany-Central and Eastern Allegany- Western Highland-Eastern Highland-Western Grant-Eastern Grant- Western Mineral-Eastern Mineral-Western Pendleton- Eastern Pendleton- 650 PM EST Tue Jan 26 2021 This Hazardous Weather Outlook is for the Allegheny Front counties in western Maryland, eastern West Virginia, and Highland County Virginia. .DAY ONE...Tonight Freezing drizzle or freezing fog is possible along and west of the Allegheny Front tonight. .DAYS TWO THROUGH SEVEN...Wednesday through Monday There is a slight winter storm threat for Sunday into Monday. If the threat materializes, it may cause travel disruptions. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
406 PM EST TUE JAN 26 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0700 AM FREEZING RAIN MOOREFIELD 39.06N 78.97W
01/26/2021 E0.10 INCH HARDY WV 911 CALL CENTER
0700 AM FREEZING RAIN FLETCHER 38.40N 78.44W
01/26/2021 M0.10 INCH MADISON VA TRAINED SPOTTER
0700 AM SNOW FLETCHER 38.40N 78.44W
01/26/2021 M0.5 INCH MADISON VA TRAINED SPOTTER
0700 AM FREEZING RAIN 1 NNW FLETCHER 38.40N 78.44W
01/26/2021 M0.10 INCH GREENE VA TRAINED SPOTTER
0700 AM SNOW 1 NNW FLETCHER 38.40N 78.44W
01/26/2021 M0.5 INCH GREENE VA TRAINED SPOTTER
0700 AM FREEZING RAIN FROSTBURG 39.66N 78.94W
01/26/2021 M0.20 INCH ALLEGANY MD CO-OP OBSERVER
0700 AM FREEZING RAIN BAYARD 39.27N 79.37W
01/26/2021 M0.10 INCH GRANT WV CO-OP OBSERVER
0740 AM SNOW 1 NW PIMLICO 39.37N 76.68W
01/26/2021 M1.3 INCH BALTIMORE MD TRAINED SPOTTER
0740 AM FREEZING RAIN 1 NW PIMLICO 39.37N 76.68W
01/26/2021 M0.05 INCH BALTIMORE MD TRAINED SPOTTER
0800 AM FREEZING RAIN 4 WNW OMPS 39.52N 78.36W
01/26/2021 M0.10 INCH MORGAN WV TRAINED SPOTTER
0800 AM FREEZING RAIN 2 SE KIMBALL 38.66N 78.37W
01/26/2021 M0.20 INCH PAGE VA PARK SRVC
0800 AM FREEZING RAIN MONTEREY 38.41N 79.58W
01/26/2021 E0.10 INCH HIGHLAND VA EMERGENCY MNGR
0800 AM FREEZING RAIN PETERSBURG 39.00N 79.13W
01/26/2021 M0.15 INCH GRANT WV 911 CALL CENTER
0800 AM FREEZING RAIN 2 SSW MOUNT STORM 39.25N 79.26W
01/26/2021 M0.25 INCH GRANT WV PUBLIC
1100 AM FREEZING RAIN 1 NNW FOREST HILL 39.60N 76.39W
01/26/2021 M0.10 INCH HARFORD MD TRAINED SPOTTER
1153 AM FREEZING RAIN 4 NE JONESBORO 37.82N 78.92W
01/26/2021 E0.10 INCH NELSON VA NEWSPAPER
1200 PM FREEZING RAIN 2 WSW DEER RUN 38.71N 79.26W
01/26/2021 E0.25 INCH PENDLETON WV TRAINED SPOTTER
1200 PM FREEZING RAIN KEYSER 39.44N 78.98W
01/26/2021 M0.20 INCH MINERAL WV EMERGENCY MNGR
1200 PM FREEZING RAIN 1 WNW FLINTSTONE 39.71N 78.59W
01/26/2021 E0.10 INCH ALLEGANY MD TRAINED SPOTTER
1200 PM SNOW 1 WNW FLINTSTONE 39.71N 78.59W
01/26/2021 M0.3 INCH ALLEGANY MD TRAINED SPOTTER
0403 PM FREEZING RAIN SPRINGFIELD 39.45N 78.69W
01/26/2021 E0.15 INCH HAMPSHIRE WV EMERGENCY MNGR
0403 PM SNOW SPRINGFIELD 39.45N 78.69W
01/26/2021 M0.5 INCH HAMPSHIRE WV EMERGENCY MNGR
&&
EVENT NUMBER LWX2100243
EVENT NUMBER LWX2100244
EVENT NUMBER LWX2100245
EVENT NUMBER LWX2100246
EVENT NUMBER LWX2100247
EVENT NUMBER LWX2100248
EVENT NUMBER LWX2100249
EVENT NUMBER LWX2100250
EVENT NUMBER LWX2100251
EVENT NUMBER LWX2100252
EVENT NUMBER LWX2100253
EVENT NUMBER LWX2100254
EVENT NUMBER LWX2100255
EVENT NUMBER LWX2100256
EVENT NUMBER LWX2100257
EVENT NUMBER LWX2100258
EVENT NUMBER LWX2100259
EVENT NUMBER LWX2100260
EVENT NUMBER LWX2100261
EVENT NUMBER LWX2100262
EVENT NUMBER LWX2100263
EVENT NUMBER LWX2100264
CJLPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
640 PM EST TUE JAN 26 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1159 PM SNOW 3 W JESSUP 39.15N 76.83W
01/25/2021 M0.5 INCH HOWARD MD COCORAHS
24-HOUR SNOWFALL.
1200 AM SNOW 1 SSE CLARKSBURG 39.22N 77.27W
01/26/2021 M0.4 INCH MONTGOMERY MD COCORAHS
24-HOUR SNOWFALL.
0500 AM SNOW SPERRYVILLE 38.66N 78.23W
01/26/2021 M0.5 INCH RAPPAHANNOCK VA CO-OP OBSERVER
24-HOUR SNOWFALL.
0559 AM SNOW 6 NNE SILVER SPRING 39.08N 77.01W
01/26/2021 M0.8 INCH MONTGOMERY MD COCORAHS
24-HOUR SNOWFALL.
0600 AM SNOW NE HAMILTON 39.36N 76.55W
01/26/2021 M0.5 INCH BALTIMORE CITY MD COCORAHS
24-HOUR SNOWFALL.
0600 AM SNOW 1 WSW NORRISVILLE 39.70N 76.54W
01/26/2021 M1.0 INCH HARFORD MD COCORAHS
24-HOUR SNOWFALL.
0600 AM SNOW 2 WNW HIGHLAND 39.19N 76.98W
01/26/2021 M0.7 INCH HOWARD MD COCORAHS
24-HOUR SNOWFALL.
0600 AM SNOW 3 ENE WILLIAMSPORT 39.61N 77.77W
01/26/2021 M0.2 INCH WASHINGTON MD COCORAHS
24-HOUR SNOWFALL.
0605 AM SNOW 1 ENE OLNEY 39.16N 77.06W
01/26/2021 M0.5 INCH MONTGOMERY MD COCORAHS
24-HOUR SNOWFALL.
0630 AM SNOW 1 ENE MONTGOMERY VILLAG 39.19N 77.18W
01/26/2021 M0.5 INCH MONTGOMERY MD COCORAHS
24-HOUR SNOWFALL.
0630 AM SNOW 2 SE EMMITSBURG 39.68N 77.29W
01/26/2021 M1.0 INCH FREDERICK MD CO-OP OBSERVER
24-HOUR SNOWFALL.
0630 AM SNOW WSW BIRDSVILLE 38.90N 76.60W
01/26/2021 M0.5 INCH ANNE ARUNDEL MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 3 N VIENNA 38.95N 77.26W
01/26/2021 M0.3 INCH FAIRFAX VA COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW FROSTBURG 39.66N 78.94W
01/26/2021 M0.2 INCH ALLEGANY MD CO-OP OBSERVER
24-HOUR SNOWFALL.
0700 AM SNOW 2 S MCLEAN 38.92N 77.18W
01/26/2021 M0.2 INCH FAIRFAX VA COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 2 SSW KEYSER 39.42N 79.01W
01/26/2021 M0.2 INCH MINERAL WV CO-OP OBSERVER
24-HOUR SNOWFALL.
0700 AM SNOW 1 S VIENNA 38.89N 77.26W
01/26/2021 M0.1 INCH FAIRFAX VA COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 2 N RESTON 38.98N 77.35W
01/26/2021 M0.1 INCH FAIRFAX VA COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 2 W FALLS CHURCH 38.89N 77.20W
01/26/2021 M0.2 INCH FAIRFAX VA COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 2 E SEVERN 39.14N 76.66W
01/26/2021 M0.5 INCH ANNE ARUNDEL MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 1 N FAIRFAX 38.87N 77.30W
01/26/2021 M0.1 INCH CITY OF FAIRFAX VA COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW N ASHBURN 39.05N 77.48W
01/26/2021 M0.2 INCH LOUDOUN VA COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 1 N ODENTON 39.08N 76.69W
01/26/2021 M0.8 INCH ANNE ARUNDEL MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 7 NNW MADISON 38.47N 78.32W
01/26/2021 M1.0 INCH MADISON VA COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 1 SSE CROFTON 39.00N 76.68W
01/26/2021 M0.6 INCH ANNE ARUNDEL MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 2 NW FALLING WATERS 39.59N 77.92W
01/26/2021 M0.4 INCH BERKELEY WV COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 1 SSE CRESAPTOWN-BEL AI 39.58N 78.85W
01/26/2021 M0.2 INCH ALLEGANY MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW SHENANDOAH JUNCTION 39.35N 77.86W
01/26/2021 M0.8 INCH JEFFERSON WV COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 1 N MOUNT WASHINGTON 39.37N 76.66W
01/26/2021 M0.3 INCH BALTIMORE CITY MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 2 ESE WHITE MARSH 39.37N 76.42W
01/26/2021 M0.4 INCH BALTIMORE MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW NE TIMONIUM 39.44N 76.62W
01/26/2021 M0.2 INCH BALTIMORE MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 1 SW LONG GREEN 39.47N 76.53W
01/26/2021 M0.2 INCH BALTIMORE MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 2 NE BRYANTOWN 38.58N 76.82W
01/26/2021 M0.1 INCH CHARLES MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 1 E ELDERSBURG 39.40N 76.93W
01/26/2021 M0.3 INCH CARROLL MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW SE MOUNT AIRY 39.37N 77.16W
01/26/2021 M0.5 INCH CARROLL MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 3 NNW HUNTINGTOWN 38.65N 76.64W
01/26/2021 M0.1 INCH CALVERT MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 1 ESE ADAMSTOWN 39.31N 77.46W
01/26/2021 M0.4 INCH FREDERICK MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 7 SSW UNION BRIDGE 39.48N 77.24W
01/26/2021 M0.2 INCH FREDERICK MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 3 NNE KINGSVILLE 39.48N 76.39W
01/26/2021 M0.2 INCH HARFORD MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 2 N COLUMBIA 39.24N 76.86W
01/26/2021 M0.7 INCH HOWARD MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 2 SSE SYKESVILLE 39.35N 76.97W
01/26/2021 M0.5 INCH HOWARD MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 2 ESE NORTH LAUREL 39.13N 76.84W
01/26/2021 M0.8 INCH HOWARD MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 2 N COLUMBIA 39.23N 76.86W
01/26/2021 M0.7 INCH HOWARD MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 2 SSE SYKESVILLE 39.34N 76.96W
01/26/2021 M0.2 INCH HOWARD MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 3 S MARRIOTTSVILLE 39.31N 76.90W
01/26/2021 M0.5 INCH HOWARD MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 4 N NORTH POTOMAC 39.15N 77.24W
01/26/2021 M0.5 INCH MONTGOMERY MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 2 W COLESVILLE 39.09N 77.04W
01/26/2021 M0.8 INCH MONTGOMERY MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 1 NNW COLESVILLE 39.10N 77.01W
01/26/2021 M0.7 INCH MONTGOMERY MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 1 N WHITE OAK 39.06N 76.99W
01/26/2021 M0.5 INCH MONTGOMERY MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 1 NNW POTOMAC 39.04N 77.21W
01/26/2021 M0.5 INCH MONTGOMERY MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 1 NNW TAKOMA PARK 38.99N 77.01W
01/26/2021 M0.5 INCH MONTGOMERY MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 1 ESE NORBECK 39.10N 77.06W
01/26/2021 M0.7 INCH MONTGOMERY MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 1 ESE HANCOCK 39.70N 78.16W
01/26/2021 M0.1 INCH WASHINGTON MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 3 NE GAITHERSBURG 39.18N 77.18W
01/26/2021 M0.6 INCH MONTGOMERY MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 1 ESE ROSSMOOR 39.10N 77.05W
01/26/2021 M0.8 INCH MONTGOMERY MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 4 NNW HAGERSTOWN 39.69N 77.75W
01/26/2021 M0.4 INCH WASHINGTON MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 1 ENE HAGERSTOWN 39.64N 77.70W
01/26/2021 M0.4 INCH WASHINGTON MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 2 WNW BETHESDA 39.00N 77.16W
01/26/2021 M0.6 INCH MONTGOMERY MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 5 NNW LAYTONSVILLE 39.27N 77.19W
01/26/2021 M0.4 INCH MONTGOMERY MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 1 SW OXON HILL 38.80N 76.99W
01/26/2021 M0.4 INCH PRINCE GEORGES MD CO-OP OBSERVER
24-HOUR SNOWFALL.
0700 AM SNOW 1 W OXON HILL 38.80N 77.00W
01/26/2021 M0.4 INCH PRINCE GEORGES MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 5 S SHARPSBURG 39.40N 77.72W
01/26/2021 M0.3 INCH WASHINGTON MD CO-OP OBSERVER
24-HOUR SNOWFALL.
0700 AM SNOW 1 N GREENBELT 39.01N 76.89W
01/26/2021 M0.7 INCH PRINCE GEORGES MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 2 SE SUITLAND 38.82N 76.91W
01/26/2021 M0.5 INCH PRINCE GEORGES MD COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 3 N RIXEYVILLE 38.62N 77.97W
01/26/2021 M0.3 INCH CULPEPER VA COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW BAYARD 39.27N 79.37W
01/26/2021 M0.1 INCH GRANT WV CO-OP OBSERVER
24-HOUR SNOWFALL.
0700 AM SNOW CUMBERLAND 39.64N 78.76W
01/26/2021 M0.2 INCH ALLEGANY MD CO-OP OBSERVER
24-HOUR SNOWFALL.
0700 AM SNOW 6 S WARRENTON 38.63N 77.81W
01/26/2021 M0.2 INCH FAUQUIER VA COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 3 NE WASHINGTON 38.93N 76.98W
01/26/2021 M0.4 INCH DISTRICT OF COLUMB DC COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 8 SW MARSHALL 38.79N 77.95W
01/26/2021 M0.2 INCH FAUQUIER VA COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW 3 SSW DAMASCUS 39.26N 77.23W
01/26/2021 M0.7 INCH MONTGOMERY MD CO-OP OBSERVER
24-HOUR SNOWFALL.
0700 AM SNOW 3 S HERNDON 38.92N 77.38W
01/26/2021 M0.2 INCH FAIRFAX VA COCORAHS
24-HOUR SNOWFALL.
0700 AM SNOW VIENNA 38.89N 77.29W
01/26/2021 M0.2 INCH FAIRFAX VA CO-OP OBSERVER
24-HOUR SNOWFALL.
0723 AM SNOW 1 SE ANNAPOLIS 38.96N 76.49W
01/26/2021 M0.5 INCH ANNE ARUNDEL MD COCORAHS
24-HOUR SNOWFALL.
0730 AM SNOW 1 SSW FORT WASHINGTON 38.72N 77.01W
01/26/2021 M0.2 INCH PRINCE GEORGES MD COCORAHS
24-HOUR SNOWFALL.
0730 AM SNOW 2 WNW NORTH BEACH 38.72N 76.57W
01/26/2021 M0.1 INCH CALVERT MD COCORAHS
24-HOUR SNOWFALL.
0730 AM SNOW 1 NNE LAUREL 39.11N 76.85W
01/26/2021 M0.8 INCH HOWARD MD COCORAHS
24-HOUR SNOWFALL.
0800 AM SNOW 1 SE MARRIOTTSVILLE 39.34N 76.89W
01/26/2021 M0.3 INCH HOWARD MD COCORAHS
24-HOUR SNOWFALL.
0800 AM SNOW 4 N SILVER SPRING 39.07N 77.03W
01/26/2021 M0.3 INCH MONTGOMERY MD COCORAHS
24-HOUR SNOWFALL.
0800 AM SNOW SE POOLESVILLE 39.14N 77.40W
01/26/2021 M0.5 INCH MONTGOMERY MD COCORAHS
24-HOUR SNOWFALL.
0800 AM SNOW NATIONAL ARBORETUM 38.91N 76.97W
01/26/2021 M0.3 INCH DISTRICT OF COLUMB DC CO-OP OBSERVER
24-HOUR SNOWFALL.
0800 AM SNOW 1 SSE REVA 38.48N 78.12W
01/26/2021 M0.4 INCH CULPEPER VA COCORAHS
24-HOUR SNOWFALL.
0800 AM SNOW 9 NW WINCHESTER 39.27N 78.30W
01/26/2021 M0.1 INCH FREDERICK VA COCORAHS
24-HOUR SNOWFALL.
0800 AM SNOW 2 W CHARLOTTESVILLE 38.03N 78.52W
01/26/2021 M0.2 INCH ALBEMARLE VA CO-OP OBSERVER
24-HOUR SNOWFALL.
0800 AM SNOW 1 S MANTUA 38.83N 77.26W
01/26/2021 M0.1 INCH FAIRFAX VA COCORAHS
24-HOUR SNOWFALL.
0800 AM SNOW 3 ESE PASADENA 39.09N 76.51W
01/26/2021 M0.5 INCH ANNE ARUNDEL MD COCORAHS
24-HOUR SNOWFALL.
0800 AM SNOW 4 E MARTINSBURG 39.45N 77.89W
01/26/2021 M0.3 INCH BERKELEY WV COCORAHS
24-HOUR SNOWFALL.
0800 AM SNOW 3 NE CHARLES TOWN 39.32N 77.83W
01/26/2021 M0.6 INCH JEFFERSON WV COCORAHS
24-HOUR SNOWFALL.
0800 AM SNOW 3 S WALDORF 38.59N 76.91W
01/26/2021 M0.2 INCH CHARLES MD COCORAHS
24-HOUR SNOWFALL.
0800 AM SNOW 6 NNW SYKESVILLE 39.46N 77.01W
01/26/2021 M25.0 INCH CARROLL MD COCORAHS
24-HOUR SNOWFALL.
0800 AM SNOW DUNKIRK 3.2NNE 38.76N 76.64W
01/26/2021 M0.2 INCH CALVERT MD COCORAHS
24-HOUR SNOWFALL.
0800 AM SNOW 1 W PRINCE FREDERICK 38.55N 76.62W
01/26/2021 M0.2 INCH CALVERT MD COCORAHS
24-HOUR SNOWFALL.
0800 AM SNOW 3 NNW NEW MARKET 39.42N 77.29W
01/26/2021 M0.5 INCH FREDERICK MD COCORAHS
24-HOUR SNOWFALL.
0800 AM SNOW 2 NW NEW MARKET 39.40N 77.30W
01/26/2021 M0.5 INCH FREDERICK MD COCORAHS
24-HOUR SNOWFALL.
0830 AM SNOW 2 SSW SEVERN 39.11N 76.70W
01/26/2021 M0.7 INCH ANNE ARUNDEL MD COCORAHS
24-HOUR SNOWFALL.
0830 AM SNOW 3 WSW ROUND HILL 39.12N 77.82W
01/26/2021 M0.1 INCH LOUDOUN VA COCORAHS
24-HOUR SNOWFALL.
0830 AM SNOW 1 SW TOWSON 39.40N 76.62W
01/26/2021 M0.3 INCH BALTIMORE MD COCORAHS
24-HOUR SNOWFALL.
0830 AM SNOW PURCELLVILLE 39.14N 77.71W
01/26/2021 M0.2 INCH LOUDOUN VA CO-OP OBSERVER
24-HOUR SNOWFALL.
0830 AM SNOW 3 W ARLINGTON 38.88N 77.15W
01/26/2021 M0.2 INCH ARLINGTON VA COCORAHS
24-HOUR SNOWFALL.
0900 AM SNOW 1 SSE THURMONT 39.61N 77.41W
01/26/2021 M0.2 INCH FREDERICK MD COCORAHS
24-HOUR SNOWFALL.
0930 AM SNOW 1 W GAMBER 39.47N 76.95W
01/26/2021 M0.3 INCH CARROLL MD COCORAHS
24-HOUR SNOWFALL.
&&
EVENT NUMBER LWX2100265
EVENT NUMBER LWX2100266
EVENT NUMBER LWX2100267
EVENT NUMBER LWX2100268
EVENT NUMBER LWX2100269
EVENT NUMBER LWX2100270
EVENT NUMBER LWX2100271
EVENT NUMBER LWX2100272
EVENT NUMBER LWX2100273
EVENT NUMBER LWX2100274
EVENT NUMBER LWX2100275
EVENT NUMBER LWX2100276
EVENT NUMBER LWX2100277
EVENT NUMBER LWX2100278
EVENT NUMBER LWX2100279
EVENT NUMBER LWX2100280
EVENT NUMBER LWX2100281
EVENT NUMBER LWX2100282
EVENT NUMBER LWX2100283
EVENT NUMBER LWX2100284
EVENT NUMBER LWX2100285
EVENT NUMBER LWX2100286
EVENT NUMBER LWX2100287
EVENT NUMBER LWX2100288
EVENT NUMBER LWX2100289
EVENT NUMBER LWX2100290
EVENT NUMBER LWX2100291
EVENT NUMBER LWX2100292
EVENT NUMBER LWX2100293
EVENT NUMBER LWX2100294
EVENT NUMBER LWX2100295
EVENT NUMBER LWX2100296
EVENT NUMBER LWX2100297
EVENT NUMBER LWX2100298
EVENT NUMBER LWX2100299
EVENT NUMBER LWX2100300
EVENT NUMBER LWX2100301
EVENT NUMBER LWX2100302
EVENT NUMBER LWX2100303
EVENT NUMBER LWX2100304
EVENT NUMBER LWX2100305
EVENT NUMBER LWX2100306
EVENT NUMBER LWX2100307
EVENT NUMBER LWX2100308
EVENT NUMBER LWX2100309
EVENT NUMBER LWX2100310
EVENT NUMBER LWX2100311
EVENT NUMBER LWX2100312
EVENT NUMBER LWX2100313
EVENT NUMBER LWX2100314
EVENT NUMBER LWX2100315
EVENT NUMBER LWX2100316
EVENT NUMBER LWX2100317
EVENT NUMBER LWX2100318
EVENT NUMBER LWX2100319
EVENT NUMBER LWX2100320
EVENT NUMBER LWX2100321
EVENT NUMBER LWX2100322
EVENT NUMBER LWX2100323
EVENT NUMBER LWX2100324
EVENT NUMBER LWX2100325
EVENT NUMBER LWX2100326
EVENT NUMBER LWX2100327
EVENT NUMBER LWX2100328
EVENT NUMBER LWX2100329
EVENT NUMBER LWX2100330
EVENT NUMBER LWX2100331
EVENT NUMBER LWX2100332
EVENT NUMBER LWX2100333
EVENT NUMBER LWX2100334
EVENT NUMBER LWX2100335
EVENT NUMBER LWX2100336
EVENT NUMBER LWX2100337
EVENT NUMBER LWX2100338
EVENT NUMBER LWX2100339
EVENT NUMBER LWX2100340
EVENT NUMBER LWX2100341
EVENT NUMBER LWX2100342
EVENT NUMBER LWX2100343
EVENT NUMBER LWX2100344
EVENT NUMBER LWX2100345
EVENT NUMBER LWX2100346
EVENT NUMBER LWX2100347
EVENT NUMBER LWX2100348
EVENT NUMBER LWX2100349
EVENT NUMBER LWX2100350
EVENT NUMBER LWX2100351
EVENT NUMBER LWX2100352
EVENT NUMBER LWX2100353
EVENT NUMBER LWX2100354
EVENT NUMBER LWX2100355
EVENT NUMBER LWX2100356
EVENT NUMBER LWX2100357
EVENT NUMBER LWX2100358
EVENT NUMBER LWX2100359
EVENT NUMBER LWX2100360
EVENT NUMBER LWX2100361
EVENT NUMBER LWX2100362
EVENT NUMBER LWX2100363
EVENT NUMBER LWX2100364
EVENT NUMBER LWX2100365
CJLThe national radar mosaic for the moment the first event began.
18 dense fog. Local standard time, as filed.
Light winds and residual moisture allowed fog to develop in the evening of January 26th. The fog dissipated early on January 27th.
Light winds and residual moisture allowed fog to develop in the evening of January 26th. The fog dissipated early on January 27th.
Light winds and residual moisture allowed fog to develop in the evening of January 26th. The fog dissipated early on January 27th.
Light winds and residual moisture allowed fog to develop in the evening of January 26th. The fog dissipated early on January 27th.
Light winds and residual moisture allowed fog to develop in the evening of January 26th. The fog dissipated early on January 27th.
Light winds and residual moisture allowed fog to develop in the evening of January 26th. The fog dissipated early on January 27th.
Light winds and residual moisture allowed fog to develop in the evening of January 26th. The fog dissipated early on January 27th.
Light winds and residual moisture allowed fog to develop in the evening of January 26th. The fog dissipated early on January 27th.
Light winds and residual moisture allowed fog to develop in the evening of January 26th. The fog dissipated early on January 27th.
Light winds and residual moisture allowed fog to develop in the evening of January 26th. The fog dissipated early on January 27th.
Light winds and residual moisture allowed fog to develop in the evening of January 26th. The fog dissipated early on January 27th.
Light winds and residual moisture allowed fog to develop in the evening of January 26th. The fog dissipated early on January 27th.
Light winds and residual moisture allowed fog to develop in the evening of January 26th. The fog dissipated early on January 27th.
Light winds and residual moisture allowed fog to develop in the evening of January 26th. The fog dissipated early on January 27th.
Light winds and residual moisture allowed fog to develop in the evening of January 26th. The fog dissipated early on January 27th.
Light winds and residual moisture allowed fog to develop in the evening of January 26th. The fog dissipated early on January 27th.
Light winds and residual moisture allowed fog to develop in the evening of January 26th. The fog dissipated early on January 27th.
Light winds and residual moisture allowed fog to develop in the evening of January 26th. The fog dissipated early on January 27th.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Virginia in 2021Every state in 2021This day in weather historyWarnings in Virginia, January 2021
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: 939504, 939505, 939506, 939507, 939508, 939509, 939510, 939511, 939512, 939513, 939514, 939515, 939516, 939517, 939518, 939519, 939520, 939521.