Alert archive / West Virginia / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 202, NWS Charleston, WV

August 18, 20194 counties in West Virginia

NWS Charleston, WV issued this severe thunderstorm warning at Aug 18, 2019, 2:27 PM EDT for 4 counties in West Virginia. It was in force for 33 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 18, 2019, 2:27 PM EDT (18:27 UTC)
Expired: Aug 18, 2019, 3:00 PM EDT
In force: 33 min
Issued by: NWS Charleston, WV
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Doddridge County, WV, Pleasants County, WV, Ritchie County, WV, Tyler County, WV

The radar

The Charleston,WV radar (KRLX), 131 km from the middle of the area, began a volume at 18:30 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 (KPIT), launched 12:00Z, 6.5 hours before the alert went out and 141 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: 566 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 1315 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 60 m²/s²
0-3 km storm-relative helicity: 113 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.7

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 18, 1:40 PM EDT, 47 minutes earlier.

Area forecast discussion, Aug 18, 1:40 PM EDT, 47 minutes before

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Hazardous weather outlook, Aug 18, 4:58 AM EDT, 9 hours 29 minutes before

Hazardous Weather Outlook
National Weather Service Charleston WV
458 AM EDT Sun Aug 18 2019

VAZ003-004-WVZ024-025-033-034-515-516-518-190900-
Dickenson-Buchanan-Mingo-Logan-McDowell-Wyoming-Northwest Raleigh-
Southeast Raleigh-Southeast Fayette-
458 AM EDT Sun Aug 18 2019

This Hazardous Weather Outlook is for southwest Virginia, and
portions of southeast West Virginia and southern West Virginia.

.DAY ONE...Today and Tonight.

Hazardous weather is not expected at this time.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions by calling the toll-free spotter hotline, or by other
methods detailed at www.weather.gov/rlx/reports.

KYZ101>103-105-OHZ066-067-075-076-083>087-WVZ005>011-013>020-026>032-
039-040-517-519>526-190900-
Greenup-Carter-Boyd-Lawrence KY-Perry-Morgan-Athens-Washington-
Jackson OH-Vinton-Meigs-Gallia-Lawrence OH-Wayne-Cabell-Mason-
Jackson WV-Wood-Pleasants-Tyler-Lincoln-Putnam-Kanawha-Roane-Wirt-
Calhoun-Ritchie-Doddridge-Boone-Clay-Braxton-Gilmer-Lewis-Harrison-
Taylor-Upshur-Barbour-Northwest Fayette-Northwest Nicholas-
Southeast Nicholas-Northwest Webster-Southeast Webster-
Northwest Pocahontas-Southeast Pocahontas-Northwest Randolph-
Southeast Randolph-
458 AM EDT Sun Aug 18 2019

This Hazardous Weather Outlook is for northeast Kentucky, southeast
Ohio and much of West Virginia.

.DAY ONE...Today and Tonight.

Hazardous weather is not expected at this time.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

There is a marginal risk for severe thunderstorms on Tuesday with
the main threat being possible damaging wind.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions by calling the toll-free spotter hotline, or by other
methods detailed at www.weather.gov/rlx/reports.

In the hours before

Special weather statement, Aug 18, 2:25 PM EDT, 2 minutes before

Special Weather Statement
National Weather Service Charleston WV
225 PM EDT Sun Aug 18 2019

WVZ010-011-019-181900-
Ritchie-Pleasants-Tyler-
225 PM EDT Sun Aug 18 2019

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN PLEASANTS...NORTH
CENTRAL RITCHIE AND TYLER COUNTIES...

At 224 PM EDT, a strong thunderstorm was located 7 miles southwest of
Middlebourne, moving east at 15 mph.

Winds in excess of 40 mph are possible with this storm.

Locations impacted include...
Middlebourne, Arvilla, Alma, Point Lookout, Wick, Mountain, Lima and
Hebron.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

This storm 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 3956 8082 3955 8079 3954 8078 3951 8074
      3947 8071 3948 8067 3946 8067 3947 8064
      3945 8062 3943 8068 3943 8071 3940 8073
      3928 8103 3945 8112 3959 8090 3958 8089
      3960 8085
TIME...MOT...LOC 1824Z 248DEG 12KT 3940 8099

14

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 18, 2:25 PM EDT	Special Weather Statement	RLX	Tyler	35 min
Aug 18, 2:35 PM EDT	Flash Flood Warning	RLX	Pleasants, Tyler	115 min
Aug 18, 2:58 PM EDT	Severe Thunderstorm Warning	RLX	Doddridge, Pleasants, Ritchie, Tyler	32 min
Aug 18, 3:48 PM EDT	Special Weather Statement	RLX	Pocahontas	27 min
Aug 18, 4:22 PM EDT	Special Weather Statement	RLX	Randolph	23 min
Aug 18, 4:49 PM EDT	Special Weather Statement	RLX	Randolph	41 min
Aug 18, 2:32 PM EDT	Special Weather Statement	RLX	Washington	28 min
Aug 18, 2:38 PM EDT	Severe Thunderstorm Warning	RLX	Washington	21 min
Aug 18, 3:05 PM EDT	Special Weather Statement	RLX	Monroe	25 min

Nearby

Severe Thunderstorm Warnings in West Virginia, 2019 Every severe thunderstorm 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.