Alert archive / Pennsylvania / Flash Flood Warnings in 1994
Flash Flood Warning 48, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this flash flood warning at Aug 27, 1994, 6:33 AM EDT for Fayette County, Pennsylvania. It was in force for 57 min.
The area
The counties it named.
The facts
- Issued
- Aug 27, 1994, 6:33 AM EDT (10:33 UTC)
- Expired
- Aug 27, 1994, 7:30 AM EDT
- In force
- 57 min
- Issued by
- NWS Pittsburgh, PA
- Area
- Whole counties
County Fayette County, PA
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 00:00Z, 10.6 hours before the alert went out and 67 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
- 637 J/kg
- Mixed-layer CIN
- -38 J/kg
- Mixed-layer LCL
- 1324 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 15 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 flash flood 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, 3:23 AM EDT, 3 hours 10 minutes before
PAZ024-030-033-270900- SPECIAL WEATHER STATEMENT...THUNDERSTORMS MOVING THROUGH WESTMORELAND NATIONAL WEATHER SERVICE PITTSBURGH PA COUNTY...CORRECTED 322 AM EDT SAT AUG 27 1994 ...THUNDERSTORMS MOVING ACROSS SOUTHERN WESTMORELAND COUNTY... AT 315 AM DOPPLER WEATHER RADAR INDICATED STRONG THUNDERSTORMS MOVING ACROSS THE SOUTHERN HALF OF WESTMORELAND COUNTY AT AROUND 20 MPH. THESE STORMS MAY CONTAIN HEAVY DOWNPOURS...SOME HAIL...DANGEROUS LIGHTNING AND GUSTY WINDS AS HIGH AS 40 MPH OR SO. THESE STORM WILL BE MOVING INTO THE LAUREL MOUNTAINS AFTER 3AM THIS MORNING.
Special weather statement, Aug 27, 3:27 AM EDT, 3 hours 6 minutes before
PAZ024-030-033-270900- SPECIAL WEATHER STATEMENT...THUNDERSTORMS MOVING THROUGH WESTMORELAND NATIONAL WEATHER SERVICE PITTSBURGH PA COUNTY...CORRECTED 322 AM EDT SAT AUG 27 1994 ...THUNDERSTORMS MOVING ACROSS SOUTHERN WESTMORELAND COUNTY... AT 315 AM DOPPLER WEATHER RADAR INDICATED STRONG THUNDERSTORMS MOVING ACROSS THE SOUTHERN HALF OF WESTMORELAND COUNTY AT AROUND 20 MPH. THESE STORMS MAY CONTAIN HEAVY DOWNPOURS...SOME HAIL...DANGEROUS LIGHTNING AND GUSTY WINDS AS HIGH AS 40 MPH OR SO. THESE STORM WILL BE MOVING INTO THE LAUREL MOUNTAINS AFTER 4AM THIS MORNING.
Special weather statement, Aug 27, 5:17 AM EDT, 1 hour 16 minutes before
PAZ021-029-030-WVZ001-002271100- SPECIAL WEATHER STATEMENT- THUNDERSTORMS NATIONAL WEATHER SERVICE PITTSBURGH PA 517 AM EDT SAT AUG 27 1994 ...THUNDERSTORMS MOVING ACROSS SOUTHWESTERN PENNSYLVANIA AND THE NORTHERNWEST VIRGINIA PANHANDLE... AT 515 AM DOPPLER WEATHER RADAR INDICATED STRONG THUNDERSTORMS MOVING ACROSS SOUTHERN HANCOCK AND BROOKE COUNTIES IN THE NORTHERN WEST VIRGINIA PANHANDLE. ALSO ACROSS NORTHERN WASHINGTON COUNTY... EXTERME SOUTHERN ALLEGHENY COUNTY AND THE NORTHERN HALF OF WESTMORELAND COUNTY IN SOUTHWESTERN PENNSYLVANIA. THESE STORMS MAY CONTAIN HEAVY DOWNPOURS...DANGEROUS LIGHTNING...SOME HAIL...AND GUSTY WINDS TO 40 MPH OR SO. THESE STORMS WILL CONTINUE TO MOVE SOUTHEAST AT 15 TO 20 MPH ACROSS SOUTHWESTERN PENNSYLVANIA DURING THE NEXT HOUR OR SO.
Special weather statement, Aug 27, 5:18 AM EDT, 1 hour 15 minutes before
PAZ021-029-030-WVZ001-002271100- SPECIAL WEATHER STATEMENT- THUNDERSTORMS NATIONAL WEATHER SERVICE PITTSBURGH PA 517 AM EDT SAT AUG 27 1994 ...THUNDERSTORMS MOVING ACROSS SOUTHWESTERN PENNSYLVANIA AND THE NORTHERNWEST VIRGINIA PANHANDLE... AT 515 AM DOPPLER WEATHER RADAR INDICATED STRONG THUNDERSTORMS MOVING ACROSS SOUTHERN HANCOCK AND BROOKE COUNTIES IN THE NORTHERN WEST VIRGINIA PANHANDLE. ALSO ACROSS NORTHERN WASHINGTON COUNTY... EXTERME SOUTHERN ALLEGHENY COUNTY AND THE NORTHERN HALF OF WESTMORELAND COUNTY IN SOUTHWESTERN PENNSYLVANIA. THESE STORMS MAY CONTAIN HEAVY DOWNPOURS...DANGEROUS LIGHTNING...SOME HAIL...AND GUSTY WINDS TO 40 MPH OR SO. THESE STORMS WILL CONTINUE TO MOV&E SOUTHEAST AT 15 TO 20 MPH ACROSS SOUTHWESTERN PENNSYLVANIA DURING THE NEXT HOUR OR SO.
Special weather statement, Aug 27, 5:18 AM EDT, 1 hour 15 minutes before
PAZ021-029-030-WVZ001-002-271100- SPECIAL WEATHER STATEMENT- THUNDERSTORMS COR TO HEADER NATIONAL WEATHER SERVICE PITTSBURGH PA 518 AM EDT SAT AUG 27 1994 ...THUNDERSTORMS MOVING ACROSS SOUTHWESTERN PENNSYLVANIA AND THE NORTHERNWEST VIRGINIA PANHANDLE... AT 515 AM DOPPLER WEATHER RADAR INDICATED STRONG THUNDERSTORMS MOVING ACROSS SOUTHERN HANCOCK AND BROOKE COUNTIES IN THE NORTHERN WEST VIRGINIA PANHANDLE. ALSO ACROSS NORTHERN WASHINGTON COUNTY... EXTERME SOUTHERN ALLEGHENY COUNTY AND THE NORTHERN HALF OF WESTMORELAND COUNTY IN SOUTHWESTERN PENNSYLVANIA. THESE STORMS MAY CONTAIN HEAVY DOWNPOURS...DANGEROUS LIGHTNING...SOME HAIL...AND GUSTY WINDS TO 40 MPH OR SO. THESE STORMS WILL CONTINUE TO MOVE SOUTHEAST AT 15 TO 20 MPH ACROSS SOUTHWESTERN PENNSYLVANIA DURING THE NEXT HOUR OR SO.
Special weather statement, Aug 27, 5:20 AM EDT, 1 hour 13 minutes before
PAZ021-029-030-WVZ001-002-271100- SPECIAL WEATHER STATEMENT- THUNDERSTORMS COR TO HEADER NATIONAL WEATHER SERVICE PITTSBURGH PA 518 AM EDT SAT AUG 27 1994 ...THUNDERSTORMS MOVING ACROSS SOUTHWESTERN PENNSYLVANIA AND THE NORTHERNWEST VIRGINIA PANHANDLE... AT 515 AM DOPPLER WEATHER RADAR INDICATED STRONG THUNDERSTORMS MOVING ACROSS SOUTHERN HANCOCK AND BROOKE COUNTIES IN THE NORTHERN WEST VIRGINIA PANHANDLE. ALSO ACROSS NORTHERN WASHINGTON COUNTY... EXTERME SOUTHERN ALLEGHENY COUNTY AND THE NORTHERN HALF OF WESTMORELAND COUNTY IN SOUTHWESTERN PENNSYLVANIA. THESE STORMS MAY CONTAIN HEAVY DOWNPOURS...DANGEROUS LIGHTNING...SOME HAIL...AND GUSTY WINDS TO 40 MPH OR SO. THESE STORMS ,WILL CONTINUE TO MOVE SOUTHEAST AT 15 TO 20 MPH ACROSS SOUTHWESTERN PENNSYLVANIA DURING THE NEXT HOUR OR SO.
The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 3:40 AM EDT | Severe Thunderstorm Warning | PBZ | Westmoreland | 50 min |
| Aug 27, 6:33 AM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 72 min |
| Aug 27, 7:10 AM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Westmoreland | 65 min |
| Aug 27, 7:20 AM EDT | Flash Flood Warning | PBZ | Fayette, Westmoreland | 3 hr |
| Aug 27, 4:14 PM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Jefferson | 61 min |
| Aug 27, 5:37 PM EDT | Flash Flood Warning | PBZ | Lawrence | 68 min |
| Aug 27, 7:45 PM EDT | Flash Flood Warning | PBZ | Allegheny, Butler, Westmoreland | 60 min |
| Aug 27, 7:45 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Butler, Westmoreland | 60 min |
Nearby
Flash Flood Warnings in Pennsylvania, 1994Every flash flood warning in 1994
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.