Alert archive / Pennsylvania / Flash Flood Warnings in 1995

Flash Flood Warning 103, NWS Pittsburgh, PA

August 5, 1995Greene County, Pennsylvania

NWS Pittsburgh, PA issued this flash flood warning at Aug 5, 1995, 5:58 PM EDT for Greene County, Pennsylvania. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Aug 5, 1995, 5:58 PM EDT (21:58 UTC)
Expired
Aug 5, 1995, 8:00 PM EDT
In force
2 hr
Issued by
NWS Pittsburgh, PA
Area
Whole counties

County Greene County, PA

The radar

The Pittsburgh radar (KPBZ), 75 km from the middle of the area, began a volume at 22:00 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

Pittsburgh, PA (KPIT), launched 12:00Z, 10.0 hours before the alert went out and 63 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, Pittsburgh, PA at 12:00Z on 1995-08-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 104 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, Pittsburgh, PA at 12:00Z on 1995-08-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 117 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
104 J/kg
Mixed-layer CIN
-90 J/kg
Mixed-layer LCL
995 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
117 m²/s²
0-3 km storm-relative helicity
160 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KPIT 052200
FFWPIT
PAC059-060000-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PITTSBURGH PA
558 PM EDT SAT AUG 5 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
 
   ...GREENE COUNTY
 
DOPPLER RADAR AT 555 PM EDT INDICATED AROUND 1.50 TO 1.75 INCHES
OF RAIN IN SOUTHERN GREENE COUNTY NEAR THE TOWN OF SPRAGGS AND
AND ROUTE 218.
MOTORISTS SHOULD EXERCISE CAUTION DRIVING IN PORTIONS OF
SOUTHERN GREENE COUNTY OVER THE NEXT FEW HOURS DUE TO
HEAVY RAINS AND POOR VISIBILITIES.
 
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT.  IT IS
IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR
CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS.  CAMPERS SHOULD AVOID
CAMPING ALONG STREAMS DURING THREATENING RAINS.

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

Local storm report, Aug 5, 3:12 PM EDT, 2 hours 46 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
315 PM EDT SAT AUG 5 1995

TIME(EDT)  .....CITY.....            STATE ...EVENT/REMARKS...
           .....COUNTY.....
0245 PM    ZANESVILLE                OH    WATER COVERED STREETS
08/05/95   MUSKINGUM                       AND FLOODED BUSINESS.
END
Local storm report, Aug 5, 3:15 PM EDT, 2 hours 43 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE PITTSBURGH PA
315 PM EDT SAT AUG 5 1995

TIME(EDT)  .....CITY.....            STATE ...EVENT/REMARKS...
           .....COUNTY.....
0245 PM    ZANESVILLE                OH    WATER COVERED STREETS
08/05/95   MUSKINGUM                       AND FLOODED BUSINESS.
END

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.