Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1993
Severe Thunderstorm Warning 137, NWS Cleveland, OH
NWS Cleveland, OH issued this severe thunderstorm warning at Aug 27, 1993, 6:36 PM EDT for Forest County, Venango County, Pennsylvania. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Aug 27, 1993, 6:36 PM EDT (22:36 UTC)
- Expired
- Aug 27, 1993, 9:00 PM EDT
- In force
- 2 hr
- Issued by
- NWS Cleveland, OH
- Area
- Whole counties
Counties Forest County, PA, Venango County, PA
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 10.6 hours before the alert went out and 176 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
- 468 J/kg
- Mixed-layer CIN
- -89 J/kg
- Mixed-layer LCL
- 1220 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 74 m²/s²
- 0-3 km storm-relative helicity
- 77 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 27, 6:33 PM EDT, 3 minutes before
OHZ004-PAZ003-280000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE YOUNGSTOWN OH 633 PM EDT FRI AUG 27 1993 FLOOD WATCH FOR STREAMS AND CREEKS IN EFFECT UNTIL 10 PM EDT FOR MERCER COUNTY IN WESTERN PENNSYLVANIA. AT 628 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED STRONG THUNDERSTORMS OVER PORTIONS OF NORTHEASTERN OHIO AND WESTERN PENNSYLVANIA. THE STRONGEST STORM WAS LOCATED FIVE MILES NORTHEAST OF THE CITY OF MERCER IN MERCER COUNTY PENNSYLVANIA. THIS STORM WAS MOVING TO THE EAST AT 10 MPH AND WILL EXIT MERCER COUNTY BY 645 PM EDT. OTHER SHOWERS AND THUNDERSTORMS WERE LOCATED OVER NORTHERN PORTIONS OF MAHONING COUNTY IN NORTHEASTERN OHIO. THESE STORMS WERE ALSO MOVING EAST AT 10 MPH. THESE STORMS WILL EXIT THE YOUNGSTOWN AREA BY 650 PM EDT. THESE STORMS HAVE A HISTORY OF PRODUCING BRIEF HEAVY RAINS. FREQUENT LIGHTNING...SMALL HAIL...WIND GUSTS TO 35 MPH AND BRIEF TORRENTIAL RAINS ARE POSSIBLE AS THESE STORMS MOVE THROUGH THE AREA. BE ON THE LOOK OUT FOR PONDING OF WATER ON ROADWAYS. DO NOT DRIVE INTO STANDING WATER. STAY TUNED TO YOUR LOCAL MEDIA OR NOAA WEATHER RADIO FOR FURTHER UPDATES. KUBINA
Special weather statement, Aug 27, 6:34 PM EDT, 2 minutes before
OHZ004-PAZ003-280000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE YOUNGSTOWN OH 633 PM EDT FRI AUG 27 1993 FLOOD WATCH FOR STREAMS AND CREEKS IN EFFECT UNTIL 10 PM EDT FOR MERCER COUNTY IN WESTERN PENNSYLVANIA. AT 628 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED STRONG THUNDERSTORMS OVER PORTIONS OF NORTHEASTERN OHIO AND WESTERN PENNSYLVANIA. THE STRONGEST STORM WAS LOCATED FIVE MILES NORTHEAST OF THE CITY OF MERCER IN MERCER COUNTY PENNSYLVANIA. THIS STORM WAS MOVING TO THE EAST AT 10 MPH AND WILL EXIT MERCER COUNTY BY 645 PM EDT. OTHER SHOWERS AND THUNDERSTORMS WERE LOCATED OVER NORTHERN PORTIONS OF MAHONING COUNTY IN NORTHEASTERN OHIO. THESE STORMS WERE ALSO MOVING EAST AT 10 MPH. THESE STORMS WILL EXIT THE YOUNGSTOWN AREA BY 650 PM EDT. THESE STORMS HAVE A HISTORY OF PRODUCING BRIEF HEAVY RAINS. FREQUENT LIGHTNING...SMALL HAIL...WIND GUSTS TO 35 MPH AND BRIEF TORRENTIAL RAINS ARE POSSIBLE AS THESE STORMS MOVE THROUGH THE AREA. BE ON THE LOOK OUT FOR PONDING OF WATER ON ROADWAYS. DO NOT DRIVE INTO STANDING WATER. STAY TUNED TO YOUR LOCAL MEDIA OR NOAA WEATHER RADIO FOR FURTHER UPDATES. KUBINA
The office that day
Everything else NWS Cleveland, OH issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 5:38 PM EDT | Flash Flood Warning | CLE | Forest, Venango | 82 min |
| Aug 27, 5:38 PM EDT | Severe Thunderstorm Warning | CLE | Forest, Venango | 82 min |
| Aug 27, 6:33 PM EDT | Flash Flood Warning | CLE | Forest, Venango | 2 hr |
| Aug 27, 7:04 PM EDT | Severe Thunderstorm Warning | CLE | Mercer | 56 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.