Alert archive / West Virginia / Flash Flood Warnings in 1992

Flash Flood Warning 48, NWS Pittsburgh, PA

September 4, 1992Washington County, Pennsylvania; Marshall County, Ohio County, West Virginia

NWS Pittsburgh, PA issued this flash flood warning at Sep 4, 1992, 6:02 PM EDT for Washington County, Pennsylvania; Marshall County, Ohio County, West Virginia. It was in force for 118 min.

The area

The counties it named.

The facts

Issued
Sep 4, 1992, 6:02 PM EDT (22:02 UTC)
Expired
Sep 4, 1992, 8:00 PM EDT
In force
118 min
Issued by
NWS Pittsburgh, PA
Area
Whole counties

Counties Washington County, PA, Marshall County, WV, Ohio County, WV

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 10.0 hours before the alert went out and 53 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, Pittsburgh, PA at 12:00Z on 1992-09-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 12:00Z on 1992-09-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
723 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
61 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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, Sep 4, 5:53 PM EDT, 9 minutes before
PAZ001>006-013>015-WVZ001-050000-
SPECIAL WEATHER STATEMENT...SLOW MOVING HEAVY THUNDERSTORM DOWNPOURS
NATIONAL WEATHER SERVICE PITTSBURGH PA
545 AM EDT FRI SEP 4 1992

...ACROSS SOUTHWESTERN PENNSYLVANIA...THE LAUREL HIGHLANDS...AND
   WEST VIRGINIA NORTHERN PANHANDLE...BE ON THE LOOKOUT THIS EVENING
   FOR HEAVY DOWNPOURS FROM SLOW MOVING THUNDERSTORMS CAUSING FLOODING
   ON ROADS AND WHERE DRAINAGE IS POOR...

TRAVELERS..BE ALERT FOR SUDDENLY LOW VISIBILITY AND ROADWAY PONDING.
REDUCE SPEED AND PULL OVER IF NECESSARY.

BECAUSE OF THE STORMS SLOW MOVEMENT...PROLONGED HEAVY DOWNPOURS CAN
ALSO RESULT IN FLOODING IN AREAS WITH POOR DRAINAGE.  IF YOU LIVE IN
AN AREA PRONE TO SUCH FLOODING...CLhOSELY MONITOR THE WEATHER THIS
EVENING AND LISTEN FOR FURTHER ADVISORIES.

GIORDANO/PALKO/KOHLHAGEN/FRAZIER

The office that day

Everything else NWS Pittsburgh, PA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 4, 6:02 PM EDTFlash Flood WarningPBZGreene118 min

Nearby

Flash Flood Warnings in West Virginia, 1992Flash Flood Warnings in Pennsylvania, 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.