Alert archive / West Virginia / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 52, NWS Pittsburgh, PA

July 18, 1997Brooke County, West Virginia

NWS Pittsburgh, PA issued this severe thunderstorm warning at Jul 18, 1997, 2:32 PM EDT for Brooke County, West Virginia. It was in force for 58 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 18, 1997, 2:32 PM EDT (18:32 UTC)
Expired
Jul 18, 1997, 3:30 PM EDT
In force
58 min
Issued by
NWS Pittsburgh, PA
Area
Whole counties

County Brooke County, WV

The radar

The Pittsburgh radar (KPBZ), 42 km from the middle of the area, began a volume at 18:36 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, 6.5 hours before the alert went out and 43 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 1997-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 582 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 1997-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 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
582 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
1058 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
-10 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPIT 181831 RRA
SVRPIT
WVC009-181930-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PITTSBURGH PA
232 PM EDT FRI JUL 18 1997
 
THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  330 PM EDT
FOR THE FOLLOWING LOCATION...
 
IN THE WEST VIRGINIA PANHANDLE
 
   ...BROOKE COUNTY
 
AT 230 PM RADAR SHOWED A SEVERE THUNDERSTORM ENTERING WESTERN BROOKE
COUNTY. THIS STORM WILL PRODUCE LARGE HAIL...TORRENTIAL RAINS...AND
GUSTY WINDS. THE STORM WILL PASS NEAR BETHANY WV.
 
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND OVER 55 MPH...DESTRUCTIVE
HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION
MOVE TO AN INTER@IOR ROOM ON THE LOWEST FLOOR OF YOUR BUILDING.  HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.

What forecasters said that day

The local office's own words before this severe thunderstorm 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, Jul 18, 2:14 PM EDT, 18 minutes before
PAZ007>009-013>016-022-190000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
215 PM EDT FRI JUL 18 1997

...THE NATIONAL WEATHER SERVICE IN PITTSBURGH SAYS...

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 8 PM TONIGHT FOR THESE
COUNTIES NORTH OF PITTSBURGH IN WESTERN PENNSYLVANIA...

ARMSTRONG           BUTLER              CLARION             FOREST
JEFFERSON           LAWRENCE            MERCER              VENANGO.

DAMAGING WIND AND HAIL ARE POSSIBLE UNTIL 8 PM TONIGHT.

OTHER THUNDERSTORMS DEVELOPING OVER EAST CENTRAL OHIO ARE MOVING INTO
THE NORTHERN PANHANDLE OF WEST VIRGINIA AND SOUTHWEST PENNSYLVANIA.
UP TO AN INCH AND A HALF OF RAIN IS POSSIBLE WITH THESE STORMS.

AS A COLD FRONT PRESSES SOUTHWARD THIS EVENING...THE RAIN WILL BE
PUSHED FURTHER SOUTH...WITH ALL THE RAIN ENDING BY MIDNIGHT.
Special weather statement, Jul 18, 2:15 PM EDT, 17 minutes before
PAZ007>009-013>016-022-190000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PITTSBURGH PA
215 PM EDT FRI JUL 18 1997

...THE NATIONAL WEATHER SERVICE IN PITTSBURGH SAYS...

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 8 PM TONIGHT FOR THESE
COUNTIES NORTH OF PITTSBURGH IN WESTERN PENNSYLVANIA...

ARMSTRONG           BUTLER              CLARION             FOREST
JEFFERSON           LAWRENCE            MERCER              VENANGO.

DAMAGING WIND AND HAIL ARE POSSIBLE UNTIL 8 PM TONIGHT.

OTHER THUNDERSTORMS DEVELOPING OVER EAST CENTRAL OHIO ARE MOVING INTO
THE NORTHERN PANHANDLE OF WEST VIRGINIA AND SOUTHWEST PENNSYLVANIA.
UP TO AN INCH AND A HALF OF RAIN IS POSSIBLE WITH THESE STORMS.

AS A COLD FRONT PRESSES SOUTHWARD THIS EVENING...THE RAIN WILL BE
PUSHED FURTHER SOUTH...WITH ALL THE RAIN ENDING BY MIDNIGHT.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 18, 6:13 PM EDTSevere Thunderstorm WarningPBZPreston62 min
Jul 18, 7:24 PM EDTSevere Thunderstorm WarningPBZHancock51 min

Nearby

Severe Thunderstorm Warnings in West Virginia, 1997Every severe thunderstorm 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.