Alert archive / West Virginia / Wind Chill Warnings in 2019

Wind Chill Warning 1, NWS Baltimore/Washington

January 20, 2019Highland County, Virginia; Allegany County, Maryland; Grant County, Mineral County, Pendleton County, West Virginia

NWS Baltimore/Washington issued this wind chill warning at Jan 20, 2019, 3:44 AM EST for Highland County, Virginia; Allegany County, Maryland; Grant County, Mineral County, Pendleton County, West Virginia. It took effect at Jan 20, 2019, 4:00 PM EST. It was in force for 20 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: Jan 20, 2019, 3:44 AM EST (08:44 UTC)
In effect from: Jan 20, 2019, 4:00 PM EST
Expired: Jan 21, 2019, 12:26 PM EST
In force: 20 hr
Issued by: NWS Baltimore/Washington

Counties Allegany County, MD, Highland County, VA, Grant County, WV, Mineral County, WV, Pendleton County, WV

The radar

The Sterling radar (KLWX), 144 km from the middle of the area, began a volume at 08:44 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

Pittsburgh, PA (KAGC), launched 00:00Z, 8.7 hours before the alert went out and 173 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: 1 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 448 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 557 m²/s²
0-3 km storm-relative helicity: 588 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 chill 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 wind chill warning went out at Jan 19, 8:51 PM EST, 6 hours 53 minutes earlier.

Area forecast discussion, Jan 19, 8:51 PM EST, 6 hours 53 minutes before

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Hazardous weather outlook, Jan 19, 7:24 PM EST, 8 hours 20 minutes before

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In the hours before

Local storm report, Jan 19, 10:54 PM EST, 4 hours 50 minutes before

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Local storm report, Jan 20, 12:11 AM EST, 3 hours 33 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
Jan 20, 3:44 AM EST	Wind Chill Advisory	LWX	Albemarle, Amherst, Arlington, Augusta, Clarke, Culpeper and 26 more	31 hr
Jan 20, 8:23 AM EST	Areal Flood Warning	LWX	Fairfax, Loudoun, Prince William, City of Manassas, City of Manassas Park	6 hr
Jan 20, 12:24 PM EST	Small Craft Advisory	LWX		42 hr
Jan 19, 9:43 PM EST	Coastal Flood Advisory	LWX	Anne Arundel, Calvert, Saint Mary's	18 hr
Jan 20, 8:55 AM EST	River Flood Warning	LWX	Berkeley, Jefferson	16 hr

Nearby

Wind Chill Warnings in West Virginia, 2019 Wind Chill Warnings in Virginia, 2019 Wind Chill Warnings in Maryland, 2019 Every wind chill 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.