Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 221, NWS Cleveland, OH

August 15, 1995Crawford County, Pennsylvania

NWS Cleveland, OH issued this severe thunderstorm warning at Aug 15, 1995, 4:21 PM EDT for Crawford County, Pennsylvania. It was in force for 39 min.

The area

The counties it named.

The facts

Issued
Aug 15, 1995, 4:21 PM EDT (20:21 UTC)
Expired
Aug 15, 1995, 5:00 PM EDT
In force
39 min
Issued by
NWS Cleveland, OH
Area
Whole counties

County Crawford County, PA

The radar

The Pittsburgh radar (KPBZ), 129 km from the middle of the area, began a volume at 20:21 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, 8.4 hours before the alert went out and 142 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 1995-08-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 439 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 1995-08-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.1939Sfc1 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
439 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
910 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
-2 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 KCLE 152024
SVRCLE
PAC039-152100-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE CLEVELAND OH
421 PM EDT TUE AUG 15 1995
 
THE NATIONAL WEATHER SERVICE IN CLEVELAND HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  500 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN  PENNSYLVANIA
 
   ...CRAWFORD COUNTY
 
AT 424 PM EDT...CLEVELAND DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
NEAR CENTERVILLE. THIS STORM WAS MOVING TO THE SOUTHEAST AT 15 MPH AND
WILL MOVE THROUGH THE HYDETOWN AND TITUSVILLE AREAS.
 
 
SEVERE THUNDERSTORMS MAY PRODUCE DAMAGING WINDS... FREQUENT
LIGHTNING AND HEAVY RAINS WHICH MAY CAUSE FLOODING OF DRAINAGE
SYSTEMS. REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO
PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING.
 
 
BARJENBRUCH

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, Aug 15, 10:50 AM EDT, 5 hours 31 minutes before
OHZ002-003-005>014-017>023-027>033-036>038-047-170000-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CLEVELAND OH
1050 AM EDT TUE AUG 15 1995

THE NATIONAL WEATHER SERVICE IN CLEVELAND OHIO SAYS THAT ISOLATED SEVERE
THUNDERSTORMS ARE POSSIBLE OVER THE NORTHERN THIRD OF OHIO FOR THIS
AFTERNOON AND EVENING.

THE THREAT OF SEVERE WEATHER IS DUE TO A COMBINATION OF A WEAK
STATIONARY FRONT ACROSS NORTHERN OHIO AND A VERY MOIST AND UNSTABLE
AIRMASS.

DAMAGING WINDS AND HAIL ARE THE MAIN THREAT THIS AFTERNOON AND EVENING
FROM SEVERE THUNDERSTORMS.

ALONG WITH THE THREAT OF SEVERE WEATHER...FLOODING WILL ALSO BE A
POSSIBILITY AS SOME THUNDERSTORMS MAY HAVE LOCALLY HEAVY RAIN.

PERSONS ACROSS THE NORTHERN THIRD OF OHIO SHOULD KEEP TUNED TO LATER
FORECASTS AND KEEP AN EYE ON THE SKY.

WOODWORTH
Special weather statement, Aug 15, 11:03 AM EDT, 5 hours 18 minutes before
OHZ002-003-005>014-017>023-027>033-036>038-047-PAZ001>003-161200-

SEVERE WEATHER OUTLOOK FOR OHIO AND NORTHWEST PENNSYLVANIA
NATIONAL WEATHER SERVICE CLEVELAND OH
1100 AM EDT MON AUG 14 1995

THE NATIONAL SEVERE STORMS FORECAST CENTER IN KANSAS CITY SAYS THAT
ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE OVER NORTHWEST PENNSYLVANIA
AND THE NORTHERN THIRD OF OHIO FOR THIS AFTERNOON AND EVENING.

THE THREAT OF SEVERE THUNDERSTORMS IS BECAUSE OF AN APPROACHING
COLD FRONT AND A VERY MOIST AND UNSTABLE AIRMASS.

BESIDES THE THREAT OF SEVERE WEATHER SOME OF THE THUNDERSTORMS MAY
HAVE LOCALLY HEAVY RAIN WITH COULD CAUSE SOME FLOODING.

PEOPLE ACROSS NORTHERN OHIO AND NORTHWEST PENNSYLVANIA SHOULD KEZEP
AN EYE ON THE SKY AND MONITOR LATER FORECASTS.

KIELTYKA
Special weather statement, Aug 15, 3:31 PM EDT, 50 minutes before
OHZ002-003-005>008-017-018-027-028-152300-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE CLEVELAND OH
327 PM EDT TUE AUG 15 1995

A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR NORTHWEST OHIO UNTIL 9
PM EDT.

SOME CITIES IN THIS WATCH ARE TOLEDO...FINDLAY AND LIMA.

AREAS OF THUNDERSTORMS WILL BE MOVING THROUGH THE WATCH AREA INTO THE
EVENING.

SOME OF THE THUNDERSTORMS MAY BE SEVERE WITH LARGE HAIL...DAMAGING
WINDS AND HEAVY RAIN IS ALSO( POSSIBLE.

IF THREATENING WEATHER APPROACHES ONE SHOULD MOVE TO A PLACE OF SAFETY.

KIELTYKA

The office that day

Everything else NWS Cleveland, OH issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 15, 3:12 PM EDTSevere Thunderstorm WarningCLEErie43 min
Aug 15, 3:12 PM EDTSevere Thunderstorm WarningCLECrawford63 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 1995Every severe thunderstorm warning in 1995

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.