Alert archive / Ohio / Flash Flood Warnings in 1997

Flash Flood Warning 80, NWS Pittsburgh, PA

August 27, 1997Belmont County, Ohio

NWS Pittsburgh, PA issued this flash flood warning at Aug 27, 1997, 10:40 PM EDT for Belmont County, Ohio. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 27, 1997, 10:40 PM EDT (02:40 UTC)
Expired
Aug 28, 1997, 12:45 AM EDT
In force
2 hr
Issued by
NWS Pittsburgh, PA
Area
Whole counties

County Belmont County, OH

The radar

The Pittsburgh radar (KPBZ), 87 km from the middle of the area, began a volume at 02:44 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 00:00Z, 2.7 hours before the alert went out and 87 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 00:00Z on 1997-08-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 876 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 1997-08-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 square meters per square second.193958Sfc1 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
876 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
1044 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
76 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPIT 280240
FFWPIT
OHC013-280445-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PITTSBURGH PA
1040 PM EDT WED AUG 27 1997
 
THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1245 AM EDT
FOR THE FOLLOWING LOCATION...
 
IN EAST CENTRAL OHIO
 
   ...BELMONT COUNTY
 
WEATHER RADAR SHOWED THUNDERSTORMS WITH TORRENTIAL RAINS OVER THE
EASTERN PARTS OF BELMONT COUNTY NEAR ST CLAIRSVILLE...BELLAIRE...
FAIRPORT AND COLRAIN. DOPPLER RADAR ESTIMATES THAT NEARLY 2 INCHES OF RA
HAS FALLEN IN THIS AREA AND FLOODING IS LIKELY.  THE RAINS WILL LIKELY
CONTINUE TIL 1130 PM.
 
BE CAREFUL AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGER OF
FLOOpDS.  IF YOU GET ANY INDICATION THAT FLOODS ARE
APPROACHING...QUICKLY  MOVE UP TO ESCAPE FLOOD WATERS.  DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

Nearby

Flash Flood Warnings in Ohio, 1997Every flash flood warning in 1997

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.