Alert archive / West Virginia / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 206, NWS Blacksburg, VA

July 12, 2022Greenbrier County, Monroe County, Summers County, West Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Jul 12, 2022, 5:20 PM EDT for Greenbrier County, Monroe County, Summers County, West Virginia. It was in force for 85 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
Jul 12, 2022, 5:20 PM EDT (21:20 UTC)
Expired
Jul 12, 2022, 6:45 PM EDT
In force
85 min
Issued by
NWS Blacksburg, VA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Greenbrier County, WV, Monroe County, WV, Summers County, WV

The radar

The Roanoke radar (KFCX), 83 km from the middle of the area, began a volume at 21:20 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 12:00Z, 9.3 hours before the alert went out and 115 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-pSkew-T log-p diagram, Roanoke, VA at 12:00Z on 2022-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 23 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Roanoke, VA at 12:00Z on 2022-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
23 J/kg
Mixed-layer CIN
-447 J/kg
Mixed-layer LCL
1021 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
90 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 Blacksburg, VA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 12, 2:36 PM EDT, 2 hours 44 minutes earlier.

Area forecast discussion, Jul 12, 2:36 PM EDT, 2 hours 44 minutes before
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Hazardous weather outlook, Jul 12, 2:12 PM EDT, 3 hours 8 minutes before
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In the hours before

Special weather statement, Jul 12, 5:06 PM EDT, 14 minutes before
Special Weather Statement
National Weather Service BLACKSBURG VA
506 PM EDT Tue Jul 12 2022

WVZ042>044-507-508-122130-
Western Greenbrier WV-Mercer WV-Summers WV-Eastern Greenbrier WV-
Monroe WV-
506 PM EDT Tue Jul 12 2022

...Strong thunderstorms will impact portions of Greenbrier, Summers,
Mercer and Monroe Counties through 630 PM EDT...

At 505 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Summersville to Moree. Movement was east
at 30 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Bluefield...
Princeton...
Lewisburg...
Hinton...
White Sulphur Springs...
Ronceverte...
and Rainelle.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 3805 8026 3806 7996 3769 8031 3769 8029
      3762 8022 3756 8033 3750 8031 3737 8076
      3743 8086 3731 8090 3724 8122 3734 8136
      3758 8119 3772 8097 3768 8088 3782 8094
      3787 8075 3810 8088 3808 8071 3827 8044
TIME...MOT...LOC 2105Z 282DEG 26KT 3821 8084 3770 8252

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

AMS

The office that day

Everything else NWS Blacksburg, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 12, 6:08 PM EDTSpecial Weather StatementRNKBath22 min
Jul 12, 6:32 PM EDTSevere Thunderstorm Warning Considerable damage threatRNKGiles73 min
Jul 12, 6:42 PM EDTSevere Thunderstorm WarningRNKAlleghany, Botetourt, Craig, City of Covington63 min
Jul 12, 7:07 PM EDTSpecial Weather StatementRNKCarroll, Floyd, City of Galax23 min
Jul 12, 7:29 PM EDTSevere Thunderstorm WarningRNKAlleghany, Botetourt, Craig, Giles, Montgomery, Pulaski and 7 more61 min
Jul 12, 7:50 PM EDTSpecial Weather StatementRNKBland, Tazewell25 min
Jul 12, 7:58 PM EDTSevere Thunderstorm WarningRNKAmherst, Bedford, Botetourt, Campbell, Rockbridge, City of Lynchburg77 min
Jul 12, 5:06 PM EDTSpecial Weather StatementRNKGreenbrier, Mercer, Monroe, Summers24 min

Nearby

Severe Thunderstorm Warnings in West Virginia, 2022Every severe thunderstorm warning 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.