Alert archive / Virginia / Winter Storm Watches in 2021

Winter Storm Watch 3, NWS Wakefield, VA

February 10, 202131 counties in Virginia; 4 counties in Maryland

NWS Wakefield, VA issued this winter storm watch at Feb 10, 2021, 3:45 AM EST for 31 counties in Virginia; 4 counties in Maryland. It took effect at Feb 11, 2021, 1:00 PM EST. It was in force for .

The area

The counties it named.

The facts

Issued: Feb 10, 2021, 3:45 AM EST (08:45 UTC)
In effect from: Feb 11, 2021, 1:00 PM EST
Expired: Feb 11, 2021, 3:39 AM EST
In force
Issued by: NWS Wakefield, VA

All 35 counties

Dorchester County, MD, Somerset County, MD, Wicomico County, MD, Worcester County, MD, Amelia County, VA, Brunswick County, VA, Caroline County, VA, Charles City County, VA, Chesterfield County, VA, City of Colonial Heights, VA, City of Hopewell, VA, City of Petersburg, VA, City of Richmond, VA, Cumberland County, VA, Dinwiddie County, VA, Essex County, VA, Fluvanna County, VA, Goochland County, VA, Hanover County, VA, Henrico County, VA, King and Queen County, VA, King William County, VA, Lancaster County, VA, Louisa County, VA, Lunenburg County, VA, Mecklenburg County, VA, Middlesex County, VA, New Kent County, VA, Northumberland County, VA, Nottoway County, VA, Powhatan County, VA, Prince Edward County, VA, Prince George County, VA, Richmond County, VA, Westmoreland County, VA

The nearest sounding before it

Roanoke, VA (KRNK), launched 00:00Z, 8.8 hours before the alert went out and 202 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1074 m above ground
0-6 km bulk shear: 79 kt
0-1 km storm-relative helicity: 168 m²/s²
0-3 km storm-relative helicity: 236 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

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

NWS Wakefield, VA wrote its last area forecast discussion before this winter storm watch went out at Feb 10, 12:34 AM EST, 3 hours 11 minutes earlier.

Area forecast discussion, Feb 10, 12:34 AM EST, 3 hours 11 minutes before

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Hazardous weather outlook, Feb 9, 4:39 PM EST, 11 hours 6 minutes before

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The office that day

Everything else NWS Wakefield, VA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 10, 3:28 PM EST	Small Craft Advisory	AKQ		11 days
Feb 10, 3:45 AM EST	Winter Weather Advisory	AKQ	Dorchester, Wicomico	27 hr

Nearby

Winter Storm Watches in Virginia, 2021 Winter Storm Watches in Maryland, 2021 Every winter storm watch in 2021

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.