Alert archive / Pennsylvania / Flash Flood Warnings in 1994
Flash Flood Warning 49, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this flash flood warning at Aug 27, 1994, 7:20 AM EDT for Fayette County, Westmoreland County, Pennsylvania. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Aug 27, 1994, 7:20 AM EDT (11:20 UTC)
- Expired
- Aug 27, 1994, 10:30 AM EDT
- In force
- 3 hr
- Issued by
- NWS Pittsburgh, PA
- Area
- Whole counties
Counties Fayette County, PA, Westmoreland County, PA
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 00:00Z, 11.3 hours before the alert went out and 57 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
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KPIT 271124 FFWPIT PAC051-129-271430- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE PITTSBURGH PA 720 AM EDT SAT AUG 27 1994 THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS EXTENDED AND ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 1030 AM EDT FOR THE FOLLOWING LOCATIONS... IN WEST PENNSYLVANIA ...FAYETTE COUNTY...WESTMORELAND COUNTY AT 710 AM DOPPLER WEATHER SERVICE RADAR INDICATED AROUND 3 TO 3.5 INCHES OF RAIN HAS FALLEN IN AROUND AN HOUR OR SO FROM SEVERE THUNDERSTORMS...AROUND EVERSON AND PENNSVILLE IN NORTHERN FAYETTE COUNTY AND NEAR 2.5 TO 3.0 INCHES NEAR SCOTTDALE IN EXTREME SOUTHERN WESTMORELAND COUNTY. THE FOLLOWING TOWNSHIPS IN FAYETTE COUNTY WILL BE AFFECTED NAMELY UPPER TYRONE...LOWER TYRONE AND BULLSKIN AND IN EXTREME SOUTHERN WESTMORELAND COUNTY NAMELY THE TOWNSHIPS OF EAST HUNTINGDON...SOUTH HUNTINGDON AND MT PLEASANT. A SKYWARN OBSERVER REPORTED NEAR 3 INCHES OF RAINFALL AT EVERSON IN NORTHERN FAYETTE COUNTY AT 705AM EDT. FLOODING ALONG JACOBS CREEK CAN BE EXPECTED BESIDES TRIBUTARIES AND STREAMS IN THE ABOVE NAMED TOWNSHIPS IN SOUTHERN WESTMORELAND COUNTY AND NORTHERN FAYETTE COUNTY IN PARYTICULAR. OTHER TOWNSHIPS ADJACENT MAY BE AFFECTED BY FLOODING THIS MORNING ALSO IN EXTREME SOUTHERN WESTMORELAND AND NORTHERN FAYETTE COUNTY. IN ADDITION A SEVERE THUNDERSTORM WARNING IS IN EFFECT TIL 815 AM EDT FOR WESTMORELAND AND FAYETTE COUNTIES. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IT'S IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS SHOULD AVOID CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS. MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. &
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 57 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 53 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, 2 hours 3 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, 2 hours 2 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, 2 hours 2 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, 2 hours 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 | Flash Flood Warning | PBZ | Fayette | 57 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, 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.