Alert archive / West Virginia / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 137, NWS Baltimore/Washington

June 23, 2016Rockingham County, Shenandoah County, Virginia; Grant County, Hardy County, Pendleton County, West Virginia

NWS Baltimore/Washington issued this severe thunderstorm warning at Jun 23, 2016, 3:55 PM EDT for Rockingham County, Shenandoah County, Virginia; Grant County, Hardy County, Pendleton County, West Virginia. It was in force for 15 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 23, 2016, 3:55 PM EDT (19:55 UTC)
Expired: Jun 23, 2016, 4:10 PM EDT
In force: 15 min
Issued by: NWS Baltimore/Washington
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Rockingham County, VA, Shenandoah County, VA, Grant County, WV, Hardy County, WV, Pendleton County, WV

The radar

The Sterling radar (KLWX), 129 km from the middle of the area, began a volume at 19:56 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 7.9 hours before the alert went out and 137 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: 1059 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 67 m²/s²
0-3 km storm-relative helicity: 383 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 severe thunderstorm 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 severe thunderstorm warning went out at Jun 23, 3:08 PM EDT, 47 minutes earlier.

Area forecast discussion, Jun 23, 3:08 PM EDT, 47 minutes before

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Hazardous weather outlook, Jun 23, 2:15 PM EDT, 1 hour 40 minutes before

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In the hours before

Local storm report, Jun 23, 2:02 PM EDT, 1 hour 53 minutes before

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Local storm report, Jun 23, 2:17 PM EDT, 1 hour 38 minutes before

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Local storm report, Jun 23, 2:29 PM EDT, 1 hour 26 minutes before

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Local storm report, Jun 23, 3:02 PM EDT, 53 minutes before

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Local storm report, Jun 23, 3:29 PM EDT, 26 minutes before

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Local storm report, Jun 23, 3:54 PM EDT, 1 minute 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
Jun 23, 4:42 AM EDT	Severe Thunderstorm Warning	LWX	Augusta, Nelson	48 min
Jun 23, 5:58 AM EDT	Areal Flood Warning	LWX	Highland	11 hr
Jun 23, 7:06 AM EDT	Areal Flood Warning	LWX	Page, Rockingham, Shenandoah, City of Harrisonburg	9 hr
Jun 23, 2:21 PM EDT	Areal Flood Warning	LWX	Augusta, Highland	5 hr

Nearby

Severe Thunderstorm Warnings in West Virginia, 2016 Severe Thunderstorm Warnings in Virginia, 2016 Every severe thunderstorm warning in 2016

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.