Alert archive / West Virginia / Special Weather Statements in 2018

Special Weather Statement, NWS Charleston, WV

August 12, 2018Pocahontas County, West Virginia

NWS Charleston, WV issued this special weather statement at Aug 12, 2018, 9:41 PM EDT for Pocahontas County, West Virginia. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 12, 2018, 9:41 PM EDT (01:41 UTC)
Expired: Aug 12, 2018, 10:30 PM EDT
In force: 49 min
Issued by: NWS Charleston, WV

County Pocahontas County, WV

The radar

The Charleston,WV radar (KRLX), 129 km from the middle of the area, began a volume at 01:43 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

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 1.7 hours before the alert went out and 252 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: 392 J/kg
Mixed-layer CIN: -100 J/kg
Mixed-layer LCL: 1131 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: -113 m²/s²
0-3 km storm-relative helicity: -73 m²/s²
Significant tornado parameter: -0.1
Supercell composite: -0.7

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 12, 9:08 PM EDT, 33 minutes earlier.

Area forecast discussion, Aug 12, 9:08 PM EDT, 33 minutes before

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Hazardous weather outlook, Aug 12, 4:27 AM EDT, 17 hours 14 minutes before

Hazardous Weather Outlook
National Weather Service Charleston WV
427 AM EDT Sun Aug 12 2018

KYZ101>103-105-OHZ066-067-075-076-083>087-WVZ005>011-013>020-024>031-
130830-
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-Mingo-Logan-Boone-Clay-Braxton-Gilmer-
Lewis-Harrison-
427 AM EDT Sun Aug 12 2018

This Hazardous Weather Outlook is for northeast Kentucky, southeast
Ohio, and portions of central West Virginia, northern West
Virginia, southern West Virginia and western West Virginia.

.DAY ONE...Today and Tonight.

Isolated showers and thunderstorms will exist again today, primarily
during the afternoon and evening hours. Some of the thunderstorms
could produce locally heavy rainfall and localized flooding issues.
Widespread flooding, however, is not currently expected.

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

The probability for widespread hazardous weather is low.

.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.

VAZ003-004-WVZ032>034-039-040-515>526-130830-
Dickenson-Buchanan-Taylor-McDowell-Wyoming-Upshur-Barbour-
Northwest Raleigh-Southeast Raleigh-Northwest Fayette-
Southeast Fayette-Northwest Nicholas-Southeast Nicholas-
Northwest Webster-Southeast Webster-Northwest Pocahontas-
Southeast Pocahontas-Northwest Randolph-Southeast Randolph-
427 AM EDT Sun Aug 12 2018

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

.DAY ONE...Today and Tonight.

Chances of showers and thunderstorms will exist again today,
primarily during the afternoon and evening hours. Some of the
thunderstorms could produce locally heavy rainfall and isolated
flooding impacts. Widespread flooding, however, is not currently
expected.

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

The probability for widespread hazardous weather is low.

.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 12, 4:34 PM EDT, 5 hours 7 minutes before

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Local storm report, Aug 12, 4:46 PM EDT, 4 hours 55 minutes before

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Special weather statement, Aug 12, 5:11 PM EDT, 4 hours 30 minutes before

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Special weather statement, Aug 12, 7:51 PM EDT, 1 hour 50 minutes before

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Special weather statement, Aug 12, 8:46 PM EDT, 55 minutes before

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Special weather statement, Aug 12, 9:41 PM EDT, 0 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 12, 8:46 PM EDT	Special Weather Statement	RLX	Randolph	44 min
Aug 13, 1:57 PM EDT	Special Weather Statement	RLX	Ritchie	33 min
Aug 13, 2:14 PM EDT	Special Weather Statement	RLX	Doddridge	31 min
Aug 13, 2:28 PM EDT	Special Weather Statement	RLX	Boone	47 min
Aug 13, 2:38 PM EDT	Special Weather Statement	RLX	Clay	52 min
Aug 13, 2:49 PM EDT	Severe Thunderstorm Warning	RLX	Calhoun, Clay, Roane	26 min
Aug 13, 3:38 PM EDT	Special Weather Statement	RLX	Braxton, Nicholas, Webster	52 min
Aug 13, 3:49 PM EDT	Severe Thunderstorm Warning	RLX	Barbour, Taylor	41 min
Aug 13, 4:02 PM EDT	Special Weather Statement	RLX	Kanawha	43 min
Aug 13, 4:23 PM EDT	Special Weather Statement	RLX	Jackson	37 min
Aug 13, 4:56 PM EDT	Special Weather Statement	RLX	Kanawha	34 min
Aug 13, 5:08 PM EDT	Special Weather Statement	RLX	Jackson	37 min
Aug 13, 5:23 PM EDT	Special Weather Statement	RLX	Pleasants	37 min
Aug 13, 5:34 PM EDT	Flash Flood Warning	RLX	Jackson	87 min
Aug 13, 5:40 PM EDT	Severe Thunderstorm Warning	RLX	Pleasants	50 min
Aug 13, 6:26 PM EDT	Special Weather Statement	RLX	Gilmer	49 min

Nearby

Special Weather Statements in West Virginia, 2018 Every special weather statement in 2018

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.