Alert archive / West Virginia / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 135, NWS Charleston, WV

August 25, 2020Raleigh County, Wyoming County, West Virginia

NWS Charleston, WV issued this severe thunderstorm warning at Aug 25, 2020, 8:51 PM EDT for Raleigh County, Wyoming County, West Virginia. It was in force for 24 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: Aug 25, 2020, 8:51 PM EDT (00:51 UTC)
Expired: Aug 25, 2020, 9:15 PM EDT
In force: 24 min
Issued by: NWS Charleston, WV
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Raleigh County, WV, Wyoming County, WV

The radar

The Charleston,WV radar (KRLX), 75 km from the middle of the area, began a volume at 00:51 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Aug 25, 3:34 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Roanoke, VA (KRNK), launched 00:00Z, 0.9 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: 461 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 1342 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 68 m²/s²
0-3 km storm-relative helicity: 65 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.8

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 Charleston, WV wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 25, 7:36 PM EDT, 1 hour 15 minutes earlier.

Area forecast discussion, Aug 25, 7:36 PM EDT, 1 hour 15 minutes before

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Hazardous weather outlook, Aug 25, 7:33 PM EDT, 1 hour 18 minutes before

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In the hours before

Local storm report, Aug 25, 8:18 PM EDT, 33 minutes before

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Local storm report, Aug 25, 8:28 PM EDT, 23 minutes before

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Local storm report, Aug 25, 8:30 PM EDT, 21 minutes before

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Local storm report, Aug 25, 8:32 PM EDT, 19 minutes before

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Special weather statement, Aug 25, 8:38 PM EDT, 13 minutes before

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Local storm report, Aug 25, 8:42 PM EDT, 9 minutes before

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The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 25, 8:09 PM EDT	Severe Thunderstorm Warning	RLX	Boone, Kanawha, Logan, Raleigh, Wyoming	51 min
Aug 25, 8:38 PM EDT	Special Weather Statement	RLX	Logan	52 min
Aug 26, 3:31 PM EDT	Severe Thunderstorm Warning	RLX	Wood	29 min
Aug 26, 4:49 PM EDT	Special Weather Statement	RLX	Pleasants, Tyler	26 min
Aug 26, 5:21 PM EDT	Special Weather Statement	RLX	Doddridge, Tyler	24 min
Aug 26, 5:44 PM EDT	Special Weather Statement	RLX	Doddridge	31 min
Aug 26, 2:23 PM EDT	Special Weather Statement	RLX	Vinton	37 min
Aug 26, 2:58 PM EDT	Special Weather Statement	RLX	Morgan	32 min
Aug 26, 3:58 PM EDT	Severe Thunderstorm Warning	RLX	Morgan, Washington	32 min
Aug 26, 4:22 PM EDT	Severe Thunderstorm Warning	RLX	Washington	23 min

Nearby

Severe Thunderstorm Warnings in West Virginia, 2020 Every severe thunderstorm warning in 2020

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.