Alert archive / Pennsylvania / Flash Flood Warnings in 1993
Flash Flood Warning 7, NWS Pittsburgh, PA
NWS Pittsburgh, PA issued this flash flood warning at Apr 16, 1993, 9:45 AM EDT for Blair County, Cambria County, Clearfield County, Pennsylvania. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Apr 16, 1993, 9:45 AM EDT (13:45 UTC)
- Expired
- Apr 16, 1993, 2:00 PM EDT
- In force
- 4 hr
- Issued by
- NWS Pittsburgh, PA
- Area
- Whole counties
Counties Blair County, PA, Cambria County, PA, Clearfield County, PA
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 1.8 hours before the alert went out and 212 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
- 286 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 643 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 253 m²/s²
- 0-3 km storm-relative helicity
- 284 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 2.4
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, Apr 16, 5:09 AM EDT, 4 hours 36 minutes before
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</html>The office that day
Everything else NWS Pittsburgh, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 16, 12:51 AM EDT | Severe Thunderstorm Warning | PBZ | Butler | 39 min |
| Apr 16, 12:51 AM EDT | Severe Thunderstorm Warning | PBZ | Greene | 39 min |
| Apr 16, 1:35 AM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Fayette, Washington, Westmoreland | 55 min |
| Apr 16, 1:35 AM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Clarion | 55 min |
| Apr 16, 2:24 AM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Clarion, Indiana, Jefferson | 66 min |
| Apr 16, 2:24 AM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Westmoreland | 66 min |
| Apr 16, 9:45 AM EDT | Flash Flood Warning | PBZ | Bedford, Somerset | 4 hr |
| Apr 16, 6:30 PM EDT | Flash Flood Warning | PBZ | Cambria | 4 hr |
| Apr 16, 6:57 PM EDT | Severe Thunderstorm Warning | PBZ | Bedford | 33 min |
| Apr 16, 7:30 PM EDT | Severe Thunderstorm Warning | PBZ | Bedford | 30 min |
Nearby
Flash Flood Warnings in Pennsylvania, 1993Every flash flood 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.