Alert archive / Virginia / Wind Advisories in 2022

Wind Advisory 20, NWS Baltimore/Washington

December 22, 202228 counties in Virginia; 13 counties in Maryland; Jefferson County, West Virginia

NWS Baltimore/Washington issued this wind advisory at Dec 22, 2022, 12:37 PM EST for 28 counties in Virginia; 13 counties in Maryland; Jefferson County, West Virginia. It took effect at Dec 23, 2022, 6:00 AM EST. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued: Dec 22, 2022, 12:37 PM EST (17:37 UTC)
In effect from: Dec 23, 2022, 6:00 AM EST
Expired: Dec 23, 2022, 6:00 PM EST
In force: 12 hr
Issued by: NWS Baltimore/Washington

All 42 counties

Anne Arundel County, MD, Baltimore County, MD, Calvert County, MD, Carroll County, MD, Cecil County, MD, Charles County, MD, City of Baltimore, MD, Frederick County, MD, Harford County, MD, Howard County, MD, Montgomery County, MD, Prince George's County, MD, Saint Mary's County, MD, Arlington County, VA, City of Alexandria, VA, City of Charlottesville, VA, City of Fairfax, VA, City of Falls Church, VA, City of Fredericksburg, VA, City of Harrisonburg, VA, City of Staunton, VA, City of Waynesboro, VA, City of Winchester, VA, Clarke County, VA, Culpeper County, VA, Fairfax County, VA, Fauquier County, VA, Frederick County, VA, Greene County, VA, King George County, VA, Loudoun County, VA, Madison County, VA, Nelson County, VA, Orange County, VA, Page County, VA, Rappahannock County, VA, Rockingham County, VA, Shenandoah County, VA, Spotsylvania County, VA, Stafford County, VA, Warren County, VA, Jefferson County, WV

The radar

The Sterling radar (KLWX), 27 km from the middle of the area, began a volume at 17:40 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

Wallops Is Stn, VA (KWAL), launched 12:00Z, 5.6 hours before the alert went out and 214 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: 1010 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 276 m²/s²
0-3 km storm-relative helicity: 360 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 wind advisory 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 wind advisory went out at Dec 22, 10:03 AM EST, 2 hours 34 minutes earlier.

Area forecast discussion, Dec 22, 10:03 AM EST, 2 hours 34 minutes before

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Hazardous weather outlook, Dec 22, 8:20 AM EST, 4 hours 17 minutes before

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In the hours before

Local storm report, Dec 22, 12:09 PM EST, 28 minutes before

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Local storm report, Dec 22, 12:11 PM EST, 26 minutes before

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Local storm report, Dec 22, 12:18 PM EST, 19 minutes before

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Local storm report, Dec 22, 12:27 PM EST, 10 minutes before

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Local storm report, Dec 22, 12:30 PM EST, 7 minutes before

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Local storm report, Dec 22, 12:31 PM EST, 6 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 22, 1:09 AM EST	Gale Warning	LWX		52 hr
Dec 22, 2:30 AM EST	High Wind Watch	LWX	Albemarle, Amherst, Augusta, Greene, Highland, Madison and 6 more	10 hr
Dec 22, 12:37 PM EST	High Wind Warning	LWX	Albemarle, Amherst, Augusta, Greene, Highland, Madison and 6 more	39 hr
Dec 22, 12:51 PM EST	Winter Weather Advisory	LWX	Highland	29 hr
Dec 22, 12:52 PM EST	Heavy Freezing Spray Advisory	LWX		48 hr
Dec 22, 2:05 PM EST	Coastal Flood Advisory	LWX	Arlington, King George, City of Alexandria, City of Falls Church	27 hr
Dec 22, 2:55 PM EST	Wind Chill Warning	LWX	Albemarle, Amherst, Augusta, Greene, Highland, Madison and 6 more	69 hr
Dec 22, 2:55 PM EST	Wind Chill Advisory	LWX	Albemarle, Amherst, Arlington, Augusta, Clarke, Culpeper and 27 more	67 hr

Nearby

Wind Advisories in Virginia, 2022 Wind Advisories in Maryland, 2022 Wind Advisories in West Virginia, 2022 Every wind advisory in 2022

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.