Alert archive / Pennsylvania / Flash Flood Warnings in 1997

Flash Flood Warning 55, NWS State College, PA

November 8, 19974 counties in Pennsylvania

NWS State College, PA issued this flash flood warning at Nov 8, 1997, 10:50 AM EST for 4 counties in Pennsylvania. It was in force for 3 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, 10:50 AM EST (15:50 UTC)
Expired
Nov 8, 1997, 2:00 PM EST
In force
3 hr
Issued by
NWS State College, PA
Area
Whole counties

Counties Bedford County, PA, Blair County, PA, Cambria County, PA, Clearfield County, PA

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 3.8 hours before the alert went out and 135 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 1997-11-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Pittsburgh, PA at 12:00Z on 1997-11-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 59 square meters per square second.19395878Sfc1 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
503 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
59 m²/s²
0-3 km storm-relative helicity
131 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 KCTP 081553
FFWCTP
PAC009-013-021-033-057-061-081900-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1050 AM EST SAT NOV 8 1997
 
THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS CONTINUED
THE FLOOD WARNINGS UNTIL 2 PM EST FOR PEOPLE IN THE FOLLOWING
LOCATIONS:
 
IN  PENNSYLVANIA
 
   ...BEDFORD COUNTY...BLAIR COUNTY...CAMBRIA COUNTY
   ...SOUTHERN CLEARFIELD COUNTY...FULTON COUNTY...HUNTINGDON COUNTY
 
ALTHOUGH THE HEAVY RAIN HAS ENDED ACROSS THE AREA MANY STREAMS
AND CREEKS CONTINUE TO RISE. RUNOFF FROM THE RECENT HEAVY RAINS
WILL CONTINUE TO CAUSE STREAMS AND CREEKS TO RISE INTO THE EARLY
AFTERNOON AND THIS WILL RESULT IN FLOODING OF LOW LYING AREAS AND
AGGREVATE STREET FLOODING IN POOR DRAINAGE AREAS.
 
EMERGENCY MANAGEMENT OFFICIALS ARE STILL REPORTING THAT MANY ROADS
ARE CLOSED DUE TO FLOODING. HARDEST HIT AREAS HAVE BEEN HUNTINGDON
AND BLAIR COUNTIES. A STORM TOTAL OF 6.8 INCHES WAS REPORTED AT ORBISONIIN HUNTINGDON COUNTY.
 
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.  THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY.  VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE TO HIGHER GROUND.
 
&
WINTHER

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.

NWS State College, PA wrote its last area forecast discussion before this flash flood warning went out at Nov 8, 9:50 AM EST, 1 hour earlier.

Area forecast discussion, Nov 8, 9:50 AM EST, 1 hour before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
940 AM EST SAT NOV 8 1997

CORD WITH BOTH PHL/PIT.

FLOOD WATCH/WARNINGS DISCONTINUED FOR LOWER SUS.
FLOOD WATCH CONTINUED FOR SOUTH-CENTRAL MTNS AND LAUREL HIGHLANDS
TIL 4 PM THIS AFTN. WARNINGS WILL BE UPDATED FOR THIS AREA AT 11
AM.

SPOTTER REPORT OF 6.8 INCHES IN HUNTINGDON COUNTY (ORBISONIA)...THE
GREATEST AMOUNT SO FAR.

RADAR SHOWS RAIN RAPIDLY DIMINISHING ACROSS FCST/A AS 8H JET
COLLAPSES OVER AREA. ACTIVITY EXPECTED TO REGENERATE ALONG THE
COAST THIS AFTN. GOT A LOOK AT 12Z GRIDS AND THIS APPEARS TO
SUPPORT THIS THINKING.

EXPECT LITTLE ADDITIONAL QPF FOR THOSE AREAS IN FLOOD WATCH..BUT
WILL DTAKE SEVERAL HOURS FOR WATERS TO RECEDE AS MANY ROADS FLOODED.

RIVER FLOODING...
MOST POINTS ALONG THE JUNIATA WILL EXCEED FLOOD STAGE THIS AFTN.

WINTHER

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 7, 9:37 PM ESTFlash Flood WarningCTPCameron, Clearfield6 hr
Nov 7, 9:37 PM ESTFlash Flood WarningCTPBedford, Fulton6 hr
Nov 7, 9:37 PM ESTFlash Flood WarningCTPFranklin6 hr
Nov 7, 9:37 PM ESTFlash Flood WarningCTPCambria, Somerset6 hr
Nov 7, 9:37 PM ESTFlash Flood WarningCTPBlair, Huntingdon6 hr
Nov 7, 9:37 PM ESTFlash Flood WarningCTPAdams, Cumberland6 hr
Nov 8, 12:48 AM ESTFlash Flood WarningCTPPerry3 hr
Nov 8, 3:40 AM ESTFlash Flood WarningCTPBedford, Blair, Cambria, Clearfield, Huntingdon5 hr
Nov 8, 3:40 AM ESTFlash Flood WarningCTPAdams, Cumberland, Franklin, Fulton, Perry5 hr
Nov 8, 3:40 AM ESTFlash Flood WarningCTPSomerset5 hr
Nov 8, 5:22 AM ESTFlash Flood WarningCTPLancaster4 hr
Nov 8, 8:55 AM ESTFlash Flood WarningCTPFranklin, Fulton, Huntingdon2 hr
Nov 8, 8:55 AM ESTFlash Flood WarningCTPBlair, Cambria, Clearfield2 hr
Nov 8, 8:55 AM ESTFlash Flood WarningCTPBedford, Somerset2 hr
Nov 8, 10:50 AM ESTFlash Flood WarningCTPFulton, Huntingdon3 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.