Alert archive / West Virginia / Flash Flood Watches in 2013

Flash Flood Watch 5, NWS Charleston, WV

June 12, 201316 counties in West Virginia; Washington County, Ohio

NWS Charleston, WV issued this flash flood watch at Jun 12, 2013, 2:57 PM EDT for 16 counties in West Virginia; Washington County, Ohio. It took effect at Jun 12, 2013, 8:00 PM EDT. It was in force for 20 hr.

The area

The counties it named.

The facts

Issued: Jun 12, 2013, 2:57 PM EDT (18:57 UTC)
In effect from: Jun 12, 2013, 8:00 PM EDT
Expired: Jun 13, 2013, 4:25 PM EDT
In force: 20 hr
Issued by: NWS Charleston, WV
Flood severity: None

Counties Washington County, OH, Barbour County, WV, Braxton County, WV, Calhoun County, WV, Clay County, WV, Doddridge County, WV, Gilmer County, WV, Harrison County, WV, Lewis County, WV, Pleasants County, WV, Ritchie County, WV, Roane County, WV, Taylor County, WV, Tyler County, WV, Upshur County, WV, Wirt County, WV, Wood County, WV

The radar

The Charleston,WV radar (KRLX), 114 km from the middle of the area, began a volume at 18:57 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, 7.0 hours before the alert went out and 162 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: 9 J/kg
Mixed-layer CIN: -146 J/kg
Mixed-layer LCL: 1061 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 76 m²/s²
0-3 km storm-relative helicity: 191 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 flash flood watch 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 flash flood watch went out at Jun 12, 2:40 PM EDT, 17 minutes earlier.

Area forecast discussion, Jun 12, 2:40 PM EDT, 17 minutes before

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Hazardous weather outlook, Jun 12, 3:32 AM EDT, 11 hours 25 minutes before

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In the hours before

Special weather statement, Jun 12, 9:27 AM EDT, 5 hours 30 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
Jun 12, 8:16 AM EDT	Special Weather Statement	RLX	Raleigh	29 min
Jun 12, 9:27 AM EDT	Special Weather Statement	RLX	Wyoming	48 min

Nearby

Flash Flood Watches in West Virginia, 2013 Flash Flood Watches in Ohio, 2013 Every flash flood watch in 2013

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.