Alert archive / West Virginia / Flash Flood Warnings in 1991

Flash Flood Warning 8, NWS Charleston, WV

March 23, 1991Pocahontas County, West Virginia

NWS Charleston, WV issued this flash flood warning at Mar 23, 1991, 1:50 PM EST for Pocahontas County, West Virginia. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued: Mar 23, 1991, 1:50 PM EST (18:50 UTC)
Expired: Mar 23, 1991, 6:45 PM EST
In force: 5 hr
Issued by: NWS Charleston, WV
Area: Whole counties

County Pocahontas County, WV

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 6.8 hours before the alert went out and 231 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: 48 J/kg
Mixed-layer CIN: -182 J/kg
Mixed-layer LCL: 832 m above ground
0-6 km bulk shear: 96 kt
0-1 km storm-relative helicity: 538 m²/s²
0-3 km storm-relative helicity: 524 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Mar 23, 11:09 AM EST, 2 hours 41 minutes before

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Special weather statement, Mar 23, 12:15 PM EST, 1 hour 35 minutes before

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Local storm report, Mar 23, 1:10 PM EST, 40 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
Mar 23, 5:39 AM EST	Flash Flood Warning	RLX	Logan, Mingo	3 hr
Mar 23, 6:11 AM EST	Flash Flood Warning	RLX	Wyoming	3 hr
Mar 23, 6:25 AM EST	Flash Flood Warning	RLX	Boone	3 hr
Mar 23, 6:40 AM EST	Flash Flood Warning	RLX	Raleigh	3 hr
Mar 23, 8:10 AM EST	Flash Flood Warning	RLX	Pocahontas, Randolph	3 hr

Nearby

Flash Flood Warnings in West Virginia, 1991 Every flash flood warning in 1991

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.