Alert archive / Pennsylvania / Flash Flood Warnings in 1996
Flash Flood Warning 153, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this flash flood warning at Jun 18, 1996, 9:40 PM EDT for Allegheny County, Washington County, Westmoreland County, Pennsylvania. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 18, 1996, 9:40 PM EDT (01:40 UTC)
- Expired
- Jun 19, 1996, 2:00 AM EDT
- In force
- 4 hr
- Issued by
- NWS Pittsburgh, PA
- Area
- Whole counties
Counties Allegheny County, PA, Washington County, PA, Westmoreland County, PA
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 00:00Z, 1.7 hours before the alert went out and 20 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
- 183 J/kg
- Mixed-layer CIN
- -60 J/kg
- Mixed-layer LCL
- 731 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 136 m²/s²
- 0-3 km storm-relative helicity
- 146 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
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, Jun 18, 5:20 PM EDT, 4 hours 20 minutes before
PAZ007>009-013>016-020>023-029>032-WVZ001>004-012-021>023-041- OHZ039>041-048>050-057>059-068-069-MDZ001-190300- SEVERE THUNDERSTORM AND FLASH FLOOD WATCH...UPDATE NATIONAL WEATHER SERVICE PITTSBURGH PA 520 PM EDT TUE JUN 18 1996 A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 800 PM TONIGHT AND A FLASH FLOOD WATCH UNTIL 10 PM TONIGHT FOR MOST OF WESTERN PENNSYLVANIA ...NORTHERN WEST VIRGINIA...AND THE WESTERN PANHANDLE OF MARYLAND. THE SEVERE THUNDERSTORM WATCH TIL 8PM AND FLASH FLOOD WATCH TIL 10 PM ARE IN EFFECT FOR THE FOLLOWING COUNTIES: IN WESTERN PENNSYLVANIA... ALLEGHENY ARMSTRONG BEAVER BUTLER CLARION FAYETTE FOREST GREENE INDIANA JEFFERSON LAWRENCE MERCER VENANGO WASHINGTON WESTMORELAND. IN NORTHERN WEST VIRGINIA... BROOKE HANCOCK MARION MARSHALL MONONGALIA OHIO PRESTON TUCKER WETZEL. IN WESTERN MARYLAND... GARRETT. A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE WEATHER...LARGE HAIL DAMAGING WINDS DANGEROUS LIGHTNING. A FLASH FLOOD WATCH MEANS FLASH FLOODING IS A POSSIBILITY NOT A CERTAINTY. BE PREPARED FOR QUICK ACTION IF A WARNING IS ISSUED OR FLOODING IS OBSERVED. IN EAST CENTRAL OHIO... A SEVERE THUNDERSTORM WATCH IS IN EFFECT TIL 11PM AND A FLASH FLOOD WATCH TIL 10PM FOR THE FOLLOWING COUNTIES... CARROLL COLUMBIANA JEFFERSON HARRISON BELMONT GUERNSEY MUSKINGUM COSHOCTON NOBLE MONROE TUSCARAWAS.
The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 1:36 AM EDT | Flash Flood Warning | PBZ | Washington | 4 hr |
| Jun 19, 1:36 AM EDT | Flash Flood Warning | PBZ | Allegheny | 4 hr |
| Jun 19, 5:41 AM EDT | Flash Flood Warning | PBZ | Allegheny, Washington | 4 hr |
| Jun 19, 9:29 AM EDT | Flash Flood Warning | PBZ | Allegheny | 5 hr |
| Jun 19, 7:05 PM EDT | Severe Thunderstorm Warning | PBZ | Greene | 40 min |
| Jun 19, 7:23 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Washington | 67 min |
| Jun 19, 3:21 AM EDT | Flash Flood Warning | PBZ | Columbiana | 3 hr |
| Jun 19, 3:40 AM EDT | Flash Flood Warning | PBZ | Monroe, Noble | 3 hr |
| Jun 19, 3:40 AM EDT | Flash Flood Warning | PBZ | Jefferson | 3 hr |
| Jun 19, 5:41 AM EDT | Flash Flood Warning | PBZ | Belmont | 4 hr |
| Jun 18, 9:40 PM EDT | Flash Flood Warning | PBZ | Brooke | 4 hr |
| Jun 19, 1:36 AM EDT | Flash Flood Warning | PBZ | Brooke | 4 hr |
| Jun 19, 4:05 PM EDT | Severe Thunderstorm Warning | PBZ | Preston, Tucker | 55 min |
Nearby
Flash Flood Warnings in Pennsylvania, 1996Every flash flood warning in 1996
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.