Flash Flood Warning 48, NWS State College, PA

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 Bedford County, PA, Blair County, PA, Cambria County, PA, Clearfield County, PA, Huntingdon County, PA

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
 
&

NWS State College, PA wrote its last area forecast discussion before this flash flood warning went out at Nov 8, 3:08 AM EST, 32 minutes earlier.

CENTRAL PENNSYLVANIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
300 AM EST SAT NOV 8 1997

ALREADY HAD EXTENSIVE PHONE COORD WITH PHI AND PIT AS PER FORECAST
FOR THE MORNING.

HEAVIEST RAIN HAS NOW EXITED THE CTP CWA INTO PIT AREA.  ANOTHER
BATCH OF MODERATE TO HEAVY RAIN DEVELOPING IN THE LOWER SUSQUEHANNA
VALLEY ATTM.

UPPER LEVEL LOW HAS REMAINED NEARLY STATIONARY DURING THE LAST 12
HOURS...AND HAS SET UP A STEADY-STATE EASTERLY FLOW OF MOISTURE OFF
THE ATLANTIC INTO SOUTHERN PA.  LOW LEVEL TROF/CONVERGENCE ZONE HAS
FOCUSED HEAVIEST RAIN ACROSS THE SOUTH CENTRAL MTS AND LAUREL
HIGHLANDS.

IF WE BELIEVE THE MODELS THIS MORNING...THE LOW LEVEL JET WILL
FINALLY SHIFT NORTHWARD TODAY.  ACTUALLY...JET AND FORCING WILL
ROTATE DURING THE DAY...CHANGING THE ORIENTATION OF PCPN FROM E-W
OVER SOUTHERN PA TO A NE SW ORIENTATION LATER TODAY.  THIS WAS
SUPPOSED TO HAPPEN DURING THE DAY FRIDAY...BUT UPPER LEVEL SYSTEM
DID NOT MOVE.  WV IMAGRY STILL NOT INDICATING ANY MOVEMENT OF THE
UPPER CIRCULATION...SO TODAYS MODELS AGAIN MAY BE TOO FAST MOVING
PCPN OUT.

THEREFORE DISCOUNT PALTRY NGM PCPN NUMBERS...AND SUGGEST AT LEAST
ANOTHER .50 INCHES IN LOWER JUNIATA RIVE(R.  FFA SHOULD BE CONTINUED
INTO MORNING AS THEY STAND.

JUNG

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

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.