Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1995
Severe Thunderstorm Warning 10, NWS Cleveland, OH
NWS Cleveland, OH issued this severe thunderstorm warning at Apr 18, 1995, 8:56 PM EDT for Lawrence County, Mercer County, Venango County, Pennsylvania. It was in force for 64 min.
The area
The counties it named.
The facts
- Issued
- Apr 18, 1995, 8:56 PM EDT (00:56 UTC)
- Expired
- Apr 18, 1995, 10:00 PM EDT
- In force
- 64 min
- Issued by
- NWS Cleveland, OH
- Area
- Whole counties
Counties Lawrence County, PA, Mercer County, PA, Venango County, PA
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 00:00Z, 0.9 hours before the alert went out and 91 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.
- Mixed-layer CAPE
- 236 J/kg
- Mixed-layer CIN
- -134 J/kg
- Mixed-layer LCL
- 1118 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 233 m²/s²
- 0-3 km storm-relative helicity
- 288 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KPIT 190056 SVRPIT PAC073-085-121-190200- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PITTSBURGH PA 856 PM EDT TUE APR 18 1995 THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1000 PM EDT FOR THE FOLLOWING LOCATIONS... IN NORTHWEST PENNSYLVANIA ...LAWRENCE COUNTY...MERCER COUNTY...VENANGO COUNTY AT 852 PM RADAR SHOWED A SEVERE THUNDERSTORM IN WESTERN LAWRENCE COUNTY PENNSYLVANIA...ABOUT 10 MILES NORTHWEST OF NEW CASTLE. THE STORM IS MOVING NORTHEAST AT 50 MPH. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHONES O.R ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
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, Apr 18, 6:33 PM EDT, 2 hours 23 minutes before
OHZ002-003-005>013-017>022-027>032-036>038-047-190200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE CLEVELAND OH 633 PM EDT TUE APR 18 1995 A TORNADO WATCH HAS BEEN ISSUED FOR ALL OF NORTHERN OHIO EXCEPT FOR EXTREME EASTERN OHIO. SOME CITIES IN THE WATCH INCLUDE TOLEO...LORAIN...MANSFIELD... CLEVELAND...AKRON...AND CANTON. THE ASHTABULA AND YOUNGSTOWN AREAS ARE NOT IN THE WATCH. A TORNADO WATCH MEANS THAT SEVERE THUNDERSTORMS ARE POSSIBLE WITH TORNADOES...LARGE HAIL...DANGEROUS LIGHTNING...AND DAMAGING THUNDERSTORM WINDS. AT 630 PM NATIONAL WEATHER SERVICE DOPPLER RADAR IN CLEVELAND SHOWED DEVELOPING THUNDERSTORMS FROM NEAR SANDUSKY TO WEST OF MANSFIELD TO DELAWARE COUNTY NEAR COLUMBUS. THE STORMS WERE MOVING NORTHEAST AT ABOUT 50 MPH. ANY OF THESE STORMS...AS WELL AS OTHER THUNDERSTORMS THAT WILL BE DEVELOPING THIS EVENING...COULD BECOME SEVERE. THE STORMS WILL DEVELOP QUICKLY. RESIDENTS OF NORTHERN OHIO SHOULD BE ALERT FOR RAPDILY CHANGING WEATHER CONDITIONS. DO NOT HESITATE TO TAKE SHELTER INDOORS OR IN A BASEMENT SHOULD A WARNING BE ISSUED OR THE WEATHER BECOME THREATENING. IN ADDITON... HIGH WIND ADVISORY REMAINS IN EFFECT FOR ALL OF OHIO TOINIGHT. LISTEN TO NOAA WEATHER RADIO OR THIS STATION FOR POSSIBLE WARNINGS AND THE LATEST WEATHER INFORMATION. KOSARIK
Special weather statement, Apr 18, 6:40 PM EDT, 2 hours 16 minutes before
OHZ002-003-005>014-017>023-027>033-036>038-047-PAZ001>003-190140- SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE CLEVELAND OH 640 PM EDT TUE APR 18 1995 A TORNADO WATCH HAS BEEN ISSUED FOR ALL OF NORTHERN OHIO EXCEPT FOR EXTREME EASTERN OHIO UNTIL 1 AM WEDNESDAY. SOME CITIES IN THE WATCH INCLUDE TOLEDO...LORAIN...MANSFIELD... CLEVELAND...AKRON...AND CANTON. THE ASHTABULA AND YOUNGSTOWN AREAS ARE NOT IN THE WATCH. A TORNADO WATCH MEANS THAT SEVERE THUNDERSTORMS ARE POSSIBLE WITH TORNADOES...LARGE HAIL...DANGEROUS LIGHTNING...AND DAMAGING THUNDERSTORM WINDS. AT 630 PM NATIONAL WEATHER SERVICE DOPPLER RADAR IN CLEVELAND SHOWED DEVELOPING THUNDERSTORMS FROM NEAR SANDUSKY TO WEST OF MANSFIELD TO DELAWARE COUNTY NEAR COLUMBUS. THE STORMS WERE MOVING NORTHEAST AT ABOUT 50 MPH. ANY OF THESE STORMS...AS WELL AS OTHER THUNDERSTORMS THAT WILL BE DEVELOPING THIS EVENING...COULD BECOME SEVERE. THE STORMS WILL DEVELOP QUICKLY. RESIDENTS OF NORTHERN OHIO SHOULD BE ALERT FOR RAPDILY CHANGING WEATHER CONDITIONS. DO NOT HESITATE TO TAKE SHELTER INDOORS OR IN A BASEMENT SHOULD A WARNING BE ISSUED OR THE WEATHER BECOME THREATENING. IN ADDITON... HIGH WIND ADVISORY REMAINS IN EFFECT FOR ALL OF OHIO TOINIGHT. LISTEN TO NOAA WEATHER RADIO OR THIS STATION FOR POSSIBLE WARNINGS AND THE LATEST WEATHER INFORMATION. KOSARIK ...CORRECTED TO INCLUDE EXPIRATION TIME OF TORNADO WATCH (1 AM)...
The office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 18, 9:25 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 35 min |
| Apr 18, 10:41 PM EDT | Severe Thunderstorm Warning | CLE | Forest, Venango | 64 min |
| Apr 18, 10:44 PM EDT | Severe Thunderstorm Warning | CLE | Elk | 61 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.