Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 151, NWS Cleveland, OH
NWS Cleveland, OH issued this severe thunderstorm warning at Aug 31, 1993, 1:36 PM EDT for Crawford County, Pennsylvania. It was in force for 69 min.
The area
The counties it named.
The facts
- Issued
- Aug 31, 1993, 1:36 PM EDT (17:36 UTC)
- Expired
- Aug 31, 1993, 2:45 PM EDT
- In force
- 69 min
- Issued by
- NWS Cleveland, OH
- Area
- Whole counties
County Crawford County, PA
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 5.6 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.
- Mixed-layer CAPE
- 1466 J/kg
- Mixed-layer CIN
- -47 J/kg
- Mixed-layer LCL
- 1155 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KERI 311808 COR SVRERI PAC039-311845- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING...REISSUED FOR CORRECTIONS NATIONAL WEATHER SERVICE ERIE PA 136 PM EDT TUE AUG 31 1993 THE NATIONAL WEATHER SERVICE IN ERIE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 245 PM EDT FOR THE FOLLOWING LOCATION... IN NORTHWEST PENNSYLVANIA ...CRAWFORD COUNTY AT 133 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS IN CRAWFORD COUNTY OF NORTWEST PENNSYLVANIA. THESE STORMS ARE PRODUCING LARGE HAIL AND HEAVY DOWNPOURS. THESE STORMS ARE MOVING TO THE EAST-NORTHEAST AT 30 MILES PER HOUR. GOLFBALL SIZED HAIL WAS REPORTED BY A SKYWARN OBSERVER IN GIRARD PENNSYLVANIA AT 120 PM EDT. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. BELK ...CORRECTED GRAMMER AND STRUCTURE OF TEXT.... &
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 31, 9:08 AM EDT, 4 hours 28 minutes before
OHZ011-311415- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MANSFIELD OH 908 AM EDT TUE AUG 31 1993 SCATTERED SHOWERS AND THUNDERSTORMS WERE MOVING ACROSS PORTIONS OF NORTH CENTRAL OHIO THIS MORNING. AT 905 AM NATIONAL WEATHER SERVICE RADAR INDICATED A THUNDERSTORM NEAR LUCAS WHICH IS IN SOUTHEAST RICHLAND COUNTY. THIS STORM WAS MOVING NORTHEAST AT 30 MPH AND WILL REACH MIFFLIN IN WEST CENTRAL ASHLAND COUNTY BY 910 AM. THE THUNDERSTORM PRODUCED HEAVY RAIN AND PEA SIZE HAIL AS IT MOVED THROUGH BELLVILLE IN SOUTHERN RICHLAND COUNTY AT 850 AM. DOXEY NNNN
Special weather statement, Aug 31, 9:08 AM EDT, 4 hours 28 minutes before
OHZ011-311415- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MANSFIELD OH 908 AM EDT TUE AUG 31 1993 SCATTERED SHOWERS AND THUNDERSTORMS WERE MOVING ACROSS PORTIONS OF NORTH CENTRAL OHIO THIS MORNING. AT 905 AM NATIONAL WEATHER SERVICE RADAR INDICATED A THUNDERSTORM NEAR LUCAS WHICH IS IN SOUTHEAST RICHLAND COUNTY. THIS STORM WAS MOVING NORTHEAST AT 30 MPH AND WILL REACH MIFFLIN IN WEST CENTRAL ASHLAND COUNTY BY 910 AM. THE THUNDERSTORM PRODUCED HEAVY RAIN AND PEA SIZE HAIL AS IT MOVED THROUGH BELLVILLE IN SOUTHERN RICHLAND COUNTY AT 850 AM. DOXEY NNNN
Special weather statement, Aug 31, 9:11 AM EDT, 4 hours 25 minutes before
PAZ002-311400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ERIE, PA 911 AM EDT TUE AUG 31 1993 AT 905 AM EDT RADAR AT THE ERIE INTERNATIONAL AIRPORT SHOWED A STRONG THUNDERSTORM NEAR THE PYMATUNING RESERVOIR ALONG THE PENNSYLVANIA AND OHIO BORDER. THIS THUNDERSTORM IS MOVING TO THE EAST AT 30 MILES PER HOUR AND WILL ENTER WESTERN CRAWFORD COUNTY IN THE NEXT 30 MINUTES. THIS STORM IS CAPABLE OF PRODUCING LOCALLY HEAVY DOWNPOURS AND STRONG GUSTY WINDS ARE ALSO POSSIBLE. BELK
Special weather statement, Aug 31, 9:11 AM EDT, 4 hours 25 minutes before
PAZ002-311400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ERIE, PA 911 AM EDT TUE AUG 31 1993 AT 905 AM EDT RADAR AT THE ERIE INTERNATIONAL AIRPORT SHOWED A STRONG THUNDERSTORM NEAR THE PYMATUNING RESERVOIR ALONG THE PENNSYLVANIA AND OHIO BORDER. THIS THUNDERSTORM IS MOVING TO THE EAST AT 30 MILES PER HOUR AND WILL ENTER WESTERN CRAWFORD COUNTY IN THE NEXT 30 MINUTES. THIS STORM IS CAPABLE OF PRODUCING LOCALLY HEAVY DOWNPOURS AND STRONG GUSTY WINDS ARE ALSO POSSIBLE. BELK
Special weather statement, Aug 31, 10:45 AM EDT, 2 hours 51 minutes before
PAZ001-PAZ002-311700- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ERIE, PA 1045 AM EDT TUE AUG 31 1993 AT 1040 AM EDT RADAR AT THE ERIE INTERNATIONAL AIRPORT INDICATED ISOLATED THUNDERSTORMS DEVOLOPING OVER NORTHWEST PENNSYLVANIA IN THE WARM AND UNSTABLE AIR AHEAD OF A COLD FRONT MOVING INTO THE LOWER GREAT LAKES. THUNDERSTORMS CAN BE EXPECTED TO PERSIST IN NORTHWEST PENNSYLVANIA INTO THIS AFTERNOON AND EVENING. SOME OF THESE THUNDERSTORMS COULD PRODUCE LOCALLY HEAVY DOWNPOURS...DANGEROUS LIGHTNING...STRONG GUSTY WINDS AND POSSIBLY HAIL. THESE THUNDERSTORMS WILL MOVE TO THE EAST AT 35 MILES PER HOUR. BELK/SANDSTROM
Special weather statement, Aug 31, 10:46 AM EDT, 2 hours 50 minutes before
PAZ001-PAZ002-311700- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ERIE, PA 1045 AM EDT TUE AUG 31 1993 AT 1040 AM EDT RADAR AT THE ERIE INTERNATIONAL AIRPORT INDICATED ISOLATED THUNDERSTORMS DEVOLOPING OVER NORTHWEST PENNSYLVANIA IN THE WARM AND UNSTABLE AIR AHEAD OF A COLD FRONT MOVING INTO THE LOWER GREAT LAKES. THUNDERSTORMS CAN BE EXPECTED TO PERSIST IN NORTHWEST PENNSYLVANIA INTO THIS AFTERNOON AND EVENING. SOME OF THESE THUNDERSTOpRMS COULD PRODUCE LOCALLY HEAVY DOWNPOURS...DANGEROUS LIGHTNING...STRONG GUSTY WINDS AND POSSIBLY HAIL. THESE THUNDERSTORMS WILL MOVE TO THE EAST AT 35 MILES PER HOUR. BELK/SANDSTROM
The office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 31, 9:20 AM EDT | Severe Thunderstorm Warning | CLE | Crawford | 25 min |
| Aug 31, 1:08 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 67 min |
| Aug 31, 1:41 PM EDT | Severe Thunderstorm Warning | CLE | Potter | 64 min |
| Aug 31, 2:32 PM EDT | Severe Thunderstorm Warning | CLE | Warren | 58 min |
| Aug 31, 2:35 PM EDT | Severe Thunderstorm Warning | CLE | Mercer | 55 min |
| Aug 31, 2:43 PM EDT | Severe Thunderstorm Warning | CLE | Crawford | 62 min |
| Aug 31, 3:59 PM EDT | Severe Thunderstorm Warning | CLE | Elk | 61 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 1993Every severe thunderstorm warning in 1993
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.