Alert archive / West Virginia / Flash Flood Warnings in 1992

Flash Flood Warning 13, NWS Baltimore/Washington

April 21, 1992Berkeley County, Jefferson County, West Virginia

NWS Baltimore/Washington issued this flash flood warning at Apr 21, 1992, 9:30 PM EDT for Berkeley County, Jefferson County, West Virginia. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Apr 21, 1992, 9:30 PM EDT (01:30 UTC)
Expired
Apr 22, 1992, 2:00 AM EDT
In force
5 hr
Issued by
NWS Baltimore/Washington
Area
Whole counties

Counties Berkeley County, WV, Jefferson County, WV

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 1.5 hours before the alert went out and 68 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-pSkew-T log-p diagram, Washington/Dulle, VA at 00:00Z on 1992-04-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 230 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 00:00Z on 1992-04-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 269 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
230 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
635 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
269 m²/s²
0-3 km storm-relative helicity
339 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KWBC 220128
FFWWBC
VAC187-043-069-171-840-WVC003-037-220600-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE WASHINGTON DC
930 PM EDT TUE APR 21 1992
 
THE NATIONAL WEATHER SERVICE IN WAS

The office that day

Everything else NWS Baltimore/Washington issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 21, 9:03 PM EDTFlash Flood WarningLWXMorgan3 hr
Apr 21, 11:44 PM EDTFlash Flood WarningLWXMorgan2 hr
Apr 22, 1:45 AM EDTFlash Flood WarningLWXBerkeley, Jefferson2 hr
Apr 22, 1:45 AM EDTFlash Flood WarningLWXMorgan2 hr

Nearby

Flash Flood Warnings in West Virginia, 1992Every flash flood warning in 1992

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.