Alert archive / West Virginia / Special Weather Statements in 2018

Special Weather Statement, NWS Charleston, WV

July 30, 2018Kanawha County, West Virginia

NWS Charleston, WV issued this special weather statement at Jul 30, 2018, 4:17 PM EDT for Kanawha County, West Virginia. It was in force for 43 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: Jul 30, 2018, 4:17 PM EDT (20:17 UTC)
Expired: Jul 30, 2018, 5:00 PM EDT
In force: 43 min
Issued by: NWS Charleston, WV

County Kanawha County, WV

The radar

The Charleston,WV radar (KRLX), 33 km from the middle of the area, began a volume at 20:20 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, 8.3 hours before the alert went out and 198 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: 617 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 464 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 88 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.8

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 Jul 30, 3:13 PM EDT, 1 hour 4 minutes earlier.

Area forecast discussion, Jul 30, 3:13 PM EDT, 1 hour 4 minutes before

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Hazardous weather outlook, Jul 30, 1:22 PM EDT, 2 hours 55 minutes before

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In the hours before

Local storm report, Jul 30, 1:31 PM EDT, 2 hours 46 minutes before

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Local storm report, Jul 30, 1:32 PM EDT, 2 hours 45 minutes before

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Local storm report, Jul 30, 2:49 PM EDT, 1 hour 28 minutes before

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Special weather statement, Jul 30, 3:20 PM EDT, 57 minutes before

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Special weather statement, Jul 30, 3:49 PM EDT, 28 minutes before

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Special weather statement, Jul 30, 4:17 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
Jul 30, 6:35 AM EDT	Special Weather Statement	RLX	Wayne	25 min
Jul 30, 7:00 AM EDT	Special Weather Statement	RLX	Lincoln	30 min
Jul 30, 7:22 AM EDT	Severe Thunderstorm Warning	RLX	Boone, Lincoln, Wayne	38 min
Jul 30, 7:46 AM EDT	Special Weather Statement	RLX	Upshur	29 min
Jul 30, 8:02 AM EDT	Special Weather Statement	RLX	Kanawha, Lincoln, Putnam	28 min
Jul 30, 9:42 AM EDT	Flash Flood Warning	RLX	Braxton, Lewis, Upshur	6 hr
Jul 30, 10:16 AM EDT	Special Weather Statement	RLX	Braxton	29 min
Jul 30, 10:42 AM EDT	Flash Flood Warning	RLX	Boone, Kanawha, Lincoln	3 hr
Jul 30, 11:01 AM EDT	Special Weather Statement	RLX	Webster	29 min
Jul 30, 3:20 PM EDT	Special Weather Statement	RLX	Boone	40 min
Jul 30, 3:49 PM EDT	Special Weather Statement	RLX	Boone	26 min
Jul 30, 4:33 PM EDT	Special Weather Statement	RLX	Boone	27 min
Jul 30, 6:19 PM EDT	Special Weather Statement	RLX	Cabell	41 min
Jul 30, 7:19 PM EDT	Special Weather Statement	RLX	Wayne	41 min
Jul 30, 4:51 PM EDT	Special Weather Statement	RLX	Gallia	24 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.