Alert archive / Pennsylvania / Flash Flood Warnings in 1997

Flash Flood Warning 88, NWS Pittsburgh, PA

November 8, 1997Jefferson County, Pennsylvania

NWS Pittsburgh, PA issued this flash flood warning at Nov 8, 1997, 6:28 AM EST for Jefferson County, Pennsylvania. It was in force for 5 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
Nov 8, 1997, 6:28 AM EST (11:28 UTC)
Expired
Nov 8, 1997, 11:00 AM EST
In force
5 hr
Issued by
NWS Pittsburgh, PA
Area
Whole counties

County Jefferson County, PA

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 00:00Z, 11.5 hours before the alert went out and 122 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 00:00Z on 1997-11-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 1997-11-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 82 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
526 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
82 m²/s²
0-3 km storm-relative helicity
108 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 081140
FFWPIT
PAC065-081600-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE PITTSBURGH PA
628 AM EST SAT NOV 8 1997
 
THE NATIONAL WEATHER SERVICE IN PITTSBURGH HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1100 AM EST
FOR THE FOLLOWING LOCATION...
 
IN WEST PENNSYLVANIA
 
   ...JEFFERSON COUNTY
 
HEAVY RAINFALL CONTINUES TO MOVE ACROSS JEFFERSON COUNTY. EMERGENCY
MANAGEMENT OFFICIALS HAVE REPORTED THAT SANDY LICK CREEK IS OUT OF ITS
BANKS ALONG PANCOAST ROAD IN WINSLOW TOWNSHIP. IN ADDITION...FLOODING WAREPORTED AT THE INTERSECTION OF U.S. ROUTES 119 AND STATE ROUTE 410
ALONG STUMP CREEK NEAR THE TOWN OF BIG RUN.
 
IN BROOKVILLE...RED BANK CREEK WAS REPORTED TO BE NEAR BANKFUL AND STILL
RISING.
 
OTHER STREAMS AND CREEKS WILL LIKELY COME OUT OF THEIR BANKS AS MORE
HEAVY RAIN MOVES INTO AREA.
 
DO NOT DRIVE INTO AREAS WHERE THE WATER COVERS THE ROAD.  THE WATER
MAY BE TOO DEEP TO ALLOW YOUR CAR TO CRO8SS SAFELY.  VEHICLES CAUGHT
IN RISING WATER SHOULD BE ABANDONED QUICKLY.  MOVE TO HIGHER GROUND.
 
 
 
&

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 7, 9:45 PM ESTFlash Flood WarningPBZIndiana, Westmoreland6 hr
Nov 8, 1:29 AM ESTFlash Flood WarningPBZArmstrong5 hr
Nov 8, 3:58 AM ESTFlash Flood WarningPBZIndiana, Westmoreland4 hr
Nov 8, 7:58 AM ESTFlash Flood WarningPBZIndiana, Westmoreland6 hr
Nov 8, 8:25 AM ESTFlash Flood WarningPBZIndiana, Westmoreland6 hr

Nearby

Flash Flood Warnings in Pennsylvania, 1997Every flash flood warning in 1997

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.