Alert archive / Virginia / High Wind Warnings in 2019

High Wind Warning 5, NWS Baltimore/Washington

November 27, 201918 counties in Virginia; Allegany County, Maryland; 7 counties in West Virginia

NWS Baltimore/Washington issued this high wind warning at Nov 27, 2019, 3:49 AM EST for 18 counties in Virginia; Allegany County, Maryland; 7 counties in West Virginia. It took effect at Nov 27, 2019, 6:00 PM EST. It was in force for 15 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Nov 27, 2019, 3:49 AM EST (08:49 UTC)
In effect from: Nov 27, 2019, 6:00 PM EST
Expired: Nov 28, 2019, 9:29 AM EST
In force: 15 hr
Issued by: NWS Baltimore/Washington

All 26 counties

Allegany County, MD, Albemarle County, VA, Amherst County, VA, Augusta County, VA, City of Harrisonburg, VA, City of Staunton, VA, City of Waynesboro, VA, City of Winchester, VA, Frederick County, VA, Greene County, VA, Highland County, VA, Madison County, VA, Nelson County, VA, Page County, VA, Rappahannock County, VA, Rockbridge County, VA, Rockingham County, VA, Shenandoah County, VA, Warren County, VA, Berkeley County, WV, Grant County, WV, Hampshire County, WV, Hardy County, WV, Mineral County, WV, Morgan County, WV, Pendleton County, WV

The radar

The Sterling radar (KLWX), 113 km from the middle of the area, began a volume at 08:50 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

Roanoke, VA (KRNK), launched 00:00Z, 8.8 hours before the alert went out and 176 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: 1869 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 101 m²/s²
0-3 km storm-relative helicity: 125 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 high wind warning 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 high wind warning went out at Nov 26, 9:37 PM EST, 6 hours 12 minutes earlier.

Area forecast discussion, Nov 26, 9:37 PM EST, 6 hours 12 minutes before

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Hazardous weather outlook, Nov 26, 2:54 PM EST, 12 hours 55 minutes before

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Nearby

High Wind Warnings in Virginia, 2019 High Wind Warnings in West Virginia, 2019 High Wind Warnings in Maryland, 2019 Every high wind warning in 2019

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.