Alert archive / Pennsylvania / Flash Flood Warnings in 1996

Flash Flood Warning 182, NWS Pittsburgh, PA

June 24, 1996Allegheny County, Washington County, Pennsylvania

NWS Pittsburgh, PA issued this flash flood warning at Jun 24, 1996, 2:23 PM EDT for Allegheny County, Washington County, Pennsylvania. It was in force for 2 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 24, 1996, 2:23 PM EDT (18:23 UTC)
Expired
Jun 24, 1996, 4:30 PM EDT
In force
2 hr
Issued by
NWS Pittsburgh, PA
Area
Whole counties

Counties Allegheny County, PA, Washington County, PA

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 6.4 hours before the alert went out and 278 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.

Skew-T log-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 1996-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 1996-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1076 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
93 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 24, 9:08 AM EDT, 5 hours 15 minutes before
PAZ007>009-013>016-020>023-029>032-241800-

SPECIAL WEATHER STATEMENT - SEVERE THUNDERSTORM WATCH
NATIONAL WEATHER SERVICE PITTSBURGH PA
900 AM EDT MON JUN 24 1996

...SEVERE THUNDERSTORM WATCH TIL 2PM...

THIS SEVERE THUNDERSTORM WATCH INCLUDES THE FOLLOWING COUNTIES IN
WESTTERN PA...

CLARION         FOREST          JEFFERSON       MERCER          VENANGO
ALLEGHENY       ARMSTRONG       BEAVER          BUTLER          FAYETTE
GREENE          INDIANA         LAWRENCE        WASHINGTON
WESTMORELAND

A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE FAVORABLE FOR SEVERE
THUNDERSTORMS.

SEVERE THUNDERSTORMS CONTAIN DAMAGING WINDS OVER 58 MPH...LARGE HAIL AND
DANGEROUS LIGHTNING.  HEAVY THUNDERSTORM RAINS CAN ALSO CAUSE FLOODING.

The office that day

Everything else NWS Pittsburgh, PA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 24, 7:05 AM EDTFlash Flood WarningPBZMercer115 min
Jun 24, 7:05 AM EDTSevere Thunderstorm WarningPBZMercer115 min
Jun 24, 7:46 AM EDTFlash Flood WarningPBZVenango2 hr
Jun 24, 7:46 AM EDTSevere Thunderstorm WarningPBZVenango2 hr
Jun 24, 7:59 AM EDTFlash Flood WarningPBZLawrence2 hr
Jun 24, 7:59 AM EDTSevere Thunderstorm WarningPBZLawrence2 hr
Jun 24, 8:16 AM EDTFlash Flood WarningPBZClarion2 hr
Jun 24, 8:16 AM EDTSevere Thunderstorm WarningPBZClarion2 hr
Jun 24, 8:25 AM EDTFlash Flood WarningPBZButler2 hr
Jun 24, 8:25 AM EDTSevere Thunderstorm WarningPBZButler2 hr
Jun 24, 8:42 AM EDTFlash Flood WarningPBZForest, Jefferson2 hr
Jun 24, 9:54 AM EDTSevere Thunderstorm WarningPBZWestmoreland36 min
Jun 24, 10:06 AM EDTSevere Thunderstorm WarningPBZFayette, Westmoreland54 min
Jun 24, 12:51 PM EDTFlash Flood WarningPBZBeaver69 min
Jun 24, 12:51 PM EDTSevere Thunderstorm WarningPBZBeaver69 min
Jun 24, 1:21 PM EDTFlash Flood WarningPBZAllegheny84 min
Jun 24, 1:21 PM EDTSevere Thunderstorm WarningPBZAllegheny84 min
Jun 24, 1:56 PM EDTFlash Flood WarningPBZArmstrong, Westmoreland2 hr
Jun 24, 1:56 PM EDTFlash Flood WarningPBZLawrence, Mercer2 hr
Jun 24, 1:56 PM EDTSevere Thunderstorm WarningPBZArmstrong, Westmoreland2 hr
Jun 24, 1:56 PM EDTSevere Thunderstorm WarningPBZLawrence, Mercer2 hr
Jun 24, 2:00 PM EDTFlash Flood WarningPBZBeaver2 hr
Jun 24, 2:23 PM EDTSevere Thunderstorm WarningPBZAllegheny, Washington2 hr
Jun 24, 2:32 PM EDTSevere Thunderstorm WarningPBZButler58 min
Jun 24, 2:44 PM EDTFlash Flood WarningPBZClarion, Jefferson2 hr
Jun 24, 2:44 PM EDTFlash Flood WarningPBZIndiana2 hr
Jun 24, 2:44 PM EDTSevere Thunderstorm WarningPBZClarion, Jefferson2 hr
Jun 24, 2:44 PM EDTSevere Thunderstorm WarningPBZIndiana2 hr
Jun 24, 3:09 PM EDTFlash Flood WarningPBZFayette, Greene111 min
Jun 24, 3:09 PM EDTSevere Thunderstorm WarningPBZFayette, Greene111 min
Jun 24, 3:44 PM EDTFlash Flood WarningPBZAllegheny, Beaver, Washington, Westmoreland2 hr
Jun 24, 4:44 PM EDTFlash Flood WarningPBZFayette76 min
Jun 24, 4:44 PM EDTFlash Flood WarningPBZIndiana76 min
Jun 24, 5:51 PM EDTFlash Flood WarningPBZAllegheny, Fayette, Westmoreland3 hr
Jun 24, 1:07 PM EDTSevere Thunderstorm WarningPBZCarroll, Columbiana83 min
Jun 24, 1:07 PM EDTSevere Thunderstorm WarningPBZTuscarawas83 min
Jun 24, 1:27 PM EDTFlash Flood WarningPBZCarroll, Tuscarawas2 hr
Jun 24, 1:27 PM EDTFlash Flood WarningPBZColumbiana2 hr
Jun 24, 1:50 PM EDTFlash Flood WarningPBZJefferson2 hr
Jun 24, 1:50 PM EDTFlash Flood WarningPBZHarrison2 hr
Jun 24, 1:50 PM EDTSevere Thunderstorm WarningPBZJefferson2 hr
Jun 24, 1:50 PM EDTSevere Thunderstorm WarningPBZHarrison2 hr
Jun 24, 2:44 PM EDTFlash Flood WarningPBZBelmont2 hr
Jun 24, 2:44 PM EDTFlash Flood WarningPBZMonroe2 hr
Jun 24, 2:44 PM EDTSevere Thunderstorm WarningPBZBelmont, Monroe2 hr
Jun 24, 3:20 PM EDTFlash Flood WarningPBZTuscarawas2 hr
Jun 24, 1:24 PM EDTSevere Thunderstorm WarningPBZTucker66 min
Jun 24, 3:32 PM EDTFlash Flood WarningPBZMonongalia, Wetzel118 min
Jun 24, 3:32 PM EDTSevere Thunderstorm WarningPBZMonongalia, Wetzel118 min
Jun 24, 3:57 PM EDTFlash Flood WarningPBZPreston2 hr
Jun 24, 3:57 PM EDTSevere Thunderstorm WarningPBZPreston2 hr
Jun 24, 5:33 PM EDTSevere Thunderstorm WarningPBZTucker57 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.