Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 49, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this severe thunderstorm warning at Jul 20, 1992, 5:13 PM EDT for Butler County, Pennsylvania. It was in force for 62 min.
The area
The counties it named.
The facts
- Issued
- Jul 20, 1992, 5:13 PM EDT (21:13 UTC)
- Expired
- Jul 20, 1992, 6:15 PM EDT
- In force
- 62 min
- Issued by
- NWS Pittsburgh, PA
- Area
- Whole counties
County Butler County, PA
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 9.2 hours before the alert went out and 58 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
- 136 J/kg
- Mixed-layer CIN
- -25 J/kg
- Mixed-layer LCL
- 874 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 101 m²/s²
- 0-3 km storm-relative helicity
- 104 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KERI 202116 SVRPIT PAC019-202215- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PITTSBURGH PA ISSUED BY ERIE PA 513 PM EDT MON JUL 20 1992 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 615 PM EDT FOR THE FOLLOWING LOCATION... IN WEST PENNSYLVANIA ...BUTLER COUNTY WEATHER SERVICE RADAR WAS INDICATING A THUNDESTORM NOW MOVING EAST VERY SLOWLY ACROSS NORTH CENTRAL BUTLER COUNTY. THIS STORM SHOULD BE APPROACHING THE LAKE ARTHUR AREA WITHIN THE NEXT HALF HOUR. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MqOVE 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.
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 20, 2:07 PM EDT, 3 hours 6 minutes before
PAZ001>006-013>015-WVZ001-210000- SPECIAL WEATHER STATEMENT - SEVERE THUNDERSTORM WATCH TIL 8 PM. NATIONAL WEATHER SERVICE PITTSBURGH PA 210 PM EDT MON JUL 20 1992 THE NATIONAL SEVERE STORMS FORECAST CENTER HAS ISSUED A SEVERE THUNDERSTORM WATCH UNTIL 800 PM FOR THE FOLLOWING COUNTIES IN WESTERN PENNSYLVANIA ALLEGHENY...ARMSTRONG...BEAVER...BUTLER...CAMERON...CLARION... CLEARFIELD...CLINTON...CRAWFORD...ELK...ERIE...FOREST...INDIANA... JEFFERSON...LAWRENCE...MCKEAN...MERCER...POTTER...VENANGO...WARREN... WASHINGTON AND WESTMORELAND. LARGE HAIL...DANGEROUS LIGHTNING AND DAMAGING THUNDERSTORM WINDS ARE POSSIBLE IN THESE AREAS. HEAVY DOWNPOURS MAY ALSO CAUSE POOR DRAINAGE AND LOW LAND FLOODING. REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. STAIRS/HIGGINS
The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 20, 4:39 PM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Jefferson | 66 min |
| Jul 20, 5:00 PM EDT | Flash Flood Warning | PBZ | Butler | 3 hr |
| Jul 20, 5:56 PM EDT | Flash Flood Warning | PBZ | Armstrong, Beaver, Butler, Clarion | 2 hr |
| Jul 20, 5:56 PM EDT | Flash Flood Warning | PBZ | Jefferson | 2 hr |
| Jul 20, 5:56 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Jefferson | 2 hr |
| Jul 20, 5:56 PM EDT | Severe Thunderstorm Warning | PBZ | Beaver | 2 hr |
| Jul 20, 6:32 PM EDT | Flash Flood Warning | PBZ | Indiana | 58 min |
| Jul 20, 6:32 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana | 58 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 1992Every severe thunderstorm warning in 1992
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.