Alert archive / Pennsylvania / Flash Flood Warnings in 1995

Flash Flood Warning 101, NWS Pittsburgh, PA

August 4, 1995Fayette County, Pennsylvania

NWS Pittsburgh, PA issued this flash flood warning at Aug 4, 1995, 5:48 PM EDT for Fayette County, Pennsylvania. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Aug 4, 1995, 5:48 PM EDT (21:48 UTC)
Expired
Aug 4, 1995, 8:00 PM EDT
In force
2 hr
Issued by
NWS Pittsburgh, PA
Area
Whole counties

County Fayette County, PA

The radar

The Pittsburgh radar (KPBZ), 84 km from the middle of the area, began a volume at 21:52 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 9.8 hours before the alert went out and 221 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 1995-08-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 457 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 1995-08-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 square meters per square second.1939Sfc1 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
457 J/kg
Mixed-layer CIN
-128 J/kg
Mixed-layer LCL
1179 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
76 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KPIT 042151
FFWPIT
PAC051-050000-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PITTSBURGH PA
548 PM EDT FRI AUG 4 1995
 
THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  800 PM EDT
FOR THE FOLLOWING LOCATION...
 
IN WEST PENNSYLVANIA
 
   ...FAYETTE COUNTY
 
DOPPLER RADAR INDICATED BETWEEN 1.50 TO 1.75 INCHES OF
RAIN THAT FELL DURING THE PAST HOUR AS OF 545 PM EDT NEAR
THE TOWN OF NEW SALEM IN WESTERN FAYETTE COUNTY.
THE DUNLAP CREEK AND ITS TRIBUTARIES MAY BE FLOODING
AS A RESULT. ALSO SOME SIGNIFICANT RISES ARE POSSIBLE
ALONG THE MID AND LOWER REACH OF THE REDSTONE CREEK.
 
TOWNSHIPS AFFECTED GERMAN...MENALLEAN...REDSTONE...LUZERENE
FRANKLIN...NORTH AND SOUTH UNION.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT.  IT IS
IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR
CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS.  CAMPERS SHOULD AVOIDd
CAMPING ALONG STREAMS DURING THREATENING RAINS.

Nearby

Flash Flood Warnings in Pennsylvania, 1995Every flash flood warning in 1995

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; radar from the NEXRAD Level II archive.