Flash Flood Warning 64, NWS State College, PA

Issued

Jun 17, 1996, 6:55 PM EDT (22:55 UTC)

Expired

Jun 17, 1996, 11:00 PM EDT

In force

4 hr

Issued by

NWS State College, PA

Area

Whole counties

County Centre County, PA

The State College radar (KCCX), 15 km from the middle of the area, began a volume at 22:54 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.

000 
TTAA00 KCTP 172258
FFWCTP
PAC027-180300-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
655 PM EDT MON JUN 17 1996
 
THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1100 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN  PENNSYLVANIA
 
   ...SOUTHERN CENTRE COUNTY
 
NUMEROUS OBSERVERS INDICATE THAT AROUND 3.5 INCHES OF RAIN HAS
FALLEN SINCE LATE AFTERNOON IN THE STATE COLLEGE AREA. SERIOUS
FLOODING PROBLEMS CONTINUE IN SOUTHERN CENTRE COUNTY THIS
EVENING. THERE ARE REPORTS OF NUMEROUS ROADS FLOODED... HOUSES
FALLING INTO SINKHOLES AND LOW-LYING AREAS UNDER WATER IN
SOUTHERN CENTRE COUNTY.
 
THIS IS A SERIOUS FLOODING SITUATION. DOPPLER RADAR STILL SHOWED
A SMALLER CLUSTER OF THUNDERSTORMS IN SOUTHERN CENTRE COUNTY.
IT APPEARS THAT THE HEAVIEST RAIN IS OVER IN CENTRE COUNTY.
RUNOFF FROM THE HEAVY RAINS EARLY THIS EVENING WILL CONTINUE
TO CAUSE SERIOUS FLOODING IN SOUTHERN CENTRE COUNTY UNTIL LATE
EVENING.
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS.  IF FLASH FLOODING IS
OBSERVED...ACT QUICKLY.  MOVE UP TO ESCAPE FLOOD WATERS.  DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
 
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.
 
NICOSIA
 
&

NWS State College, PA wrote its last area forecast discussion before this flash flood warning went out at Jun 17, 1:33 PM EDT, 5 hours 22 minutes earlier.

CENTRAL PENNSYLVANIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
130 PM EDT MON JUN 17 1996

...ZONE SUGGESTIONS...

...PIT/PHL...ADAP SHOWS DECENT CAP AND HIGHER LI'S MAINTAINING OVER
NRN ZONES. HAVE NO PROBLEM IN AT LEAST DOWN PLAYING THUNDER UP
NORTH TONITE. MAYBE WORD AS SHOWERS...WITH A RUMBLE OF THUNDER
POSSIBLE OR SOMETHING LIKE THAT. CELLS THAT HAVE POPPED UP
ELSEWHERE SO FAR SEEM RELUCTANT TO MOVE VERY FAR OR FAST. MAY BE
DEALING WITH FLASH FLOODING IN SPOTS...BUT WOULD BE HARD PRESSED TO
SAY WHAT AREA(S) WILL BE MOST UNDER THE GUN. FAVOR MENTION OF HEAVY
DOWNPOURS EXCEPT MAYBE OVER NORTH WHERE AIRMASS IS A BIT MORE
STABLE AND DRIER.

...DISCUSSION...
NOT MUCH CHANGE FROM AM PACKAGE DISCUSSION...WEAK BOUNDARY ACROSS
STATE SEPARATES THE SOUPY AIR OVER THE SOUTH FROM THE PLAIN OLD
MUGGY AIR OVER THE NORTH. LOOKS LIKE BOUNDARY WILL NOT MOVE MUCH IN
TIME JUDGING FROM GRIDDED DATA PRESSURE AND LIFTED INDEX FIELDS.
BOUNDARY WILL ACT AS FOCUS FOR DIURNAL BOUTS OF CONVECTION AT LEAST
AND UNTIL SYSTEM TO OUR WEST DECIDES SOME TIME MAYBE LATER THIS
WEEK TO DIE OR MOVE THROUGH.

SYSTEM MOVEMENT FROM WEST WILL BE HINDERED BY HINTS AT DEVELOPING
REX BLOCK PATTERN AS IT CLOSES OFF AND CRAWLS TWD WRN GR LAKES.
THIS KEEPS HGHTS HIGH OVER ERN SEABOARD AND MAINTAINS FLOW OF HUMID
AIR FOR SVRL DAYS. DEVELOPING RIGHT ENTRANCE REGION TO THE JET
SLIDES SLOWLY NORTHEAST TO NRN NEW ENG AND EVENTUALLY OFF COAST.
THIS HELPS SUPPORT THE DEVELOPMENT OF AT LEAST SOME LOW LEVEL
FRONTOGENETIC FORCING ALONG BOUNDARY WITH TIME. THE INCREASE IN LOW
LEVEL CONVERGENCE WILL NOT HURT CONVECTIVE POTENTIAL OF WARM HUMID
AIRMASS IN PLACE.

SEE LITTLE CHANGE THRU MID WEEK WITH AVN KEEPING ERN HGHTS
HIGH...BUT POLLUTED BY WEAK UPPER TROF TRYING TO SLITHER THRU FLOW.

LA CORTE

Flash Flood Warnings in Pennsylvania, 1996Every flash flood warning in 1996

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.