Alert archive / Pennsylvania / Flash Flood Warnings in 1997

Flash Flood Warning 49, NWS State College, PA

November 8, 19975 counties in Pennsylvania

NWS State College, PA issued this flash flood warning at Nov 8, 1997, 3:40 AM EST for 5 counties in 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, 3:40 AM EST (08:40 UTC)
Expired
Nov 8, 1997, 9:00 AM EST
In force
5 hr
Issued by
NWS State College, PA
Area
Whole counties

Counties Adams County, PA, Cumberland County, PA, Franklin County, PA, Fulton County, PA, Perry County, PA

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 8.7 hours before the alert went out and 124 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 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.LCL10008507005003002001001 km2 km3 km6 km9 km12 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 00:00Z on 1997-11-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 392 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
514 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
392 m²/s²
0-3 km storm-relative helicity
563 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 080841
FFWCTP
PAC001-009-013-021-033-041-055-057-061-099-111-081400-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
340 AM EST SAT NOV 8 1997
 
THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS EXTENDED THE FLOOD
WARNING UNTIL 900 AM EST FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN  PENNSYLVANIA
 
   ...ADAMS COUNTY...BEDFORD COUNTY...BLAIR COUNTY...CAMBRIA COUNTY
   ...WESTERN CLEARFIELD COUNTY...WESTERN CUMBERLAND COUNTY
   ...FRANKLIN COUNTY...FULTON COUNTY...HUNTINGDON COUNTY
   ...PERRY COUNTY...SOMERSET COUNTY
 
RAIN HAS CONTINUED OVERNIGHT ACROSS THE SOUTH CENTRAL MOUNTAINS...LAUREL
HIGHLANDS AND THE LOWER SUSQUEHANNA VALLEY REGIONS OF PENNSYLVANIA. OVER
THE LAST 24 HOURS...RAINFALL RANGING FROM 1 TO 5 INCHES HAS FALLEN
ACROSS THE AREA. HEAVIEST RAIN HAS BEEN NEAR ALTOONA AND JOHNSTOWN WHERE
BETWEEN 4 AND 5 INCHES HAS FALLEN.
 
COUNTY EMERGENCY MANAGEMENT OFFICIALS IN THE WARNED COUNTIES CONTINUE TO
REPORT NUMEROUS ROAD CLOSURES...FLOODING STREAMS AND FLOODED BASEMENTS.
HUNTINGDON COUNTY WAS ESPECIALLY HARD HIT WITH 33 ROADS CLOSED.  SOME
PORTIONS OF ROUTE 54 IN CAMBRIA COUNTY HAVE BEEN WASHED AWAY.
 
RAIN OVER THE REGION HAS TAPERED OFF SOMEWHAT EARLY THIS SATURDAY
MORNING...BUT A HEAVIER AREA OF RAIN IS DEVELOPING ONCE AGAIN NEAR
HARRISBURG AND WILL MOVE WEST ACROSS THE WARNING AREA THIS MORNING.
 
ADDITIONAL RAINFALL WILL ONLY AGGREVATE ONGOING FLOODING.
 
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.
 
JUNG
 
&

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 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 WarningCTPBedford, Blair, Cambria, Clearfield3 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.