Flash Flood Warning 59, NWS State College, PA

Issued

Jun 17, 1996, 3:05 PM EDT (19:05 UTC)

Expired

Jun 17, 1996, 6:00 PM EDT

In force

3 hr

Issued by

NWS State College, PA

Area

Whole counties

County Lebanon County, PA

The State College radar (KCCX), 144 km from the middle of the area, began a volume at 19:04 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 171906
FFWCTP
PAC075-172200-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
305 PM EDT MON JUN 17 1996
 
THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  600 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN  PENNSYLVANIA
 
   ...LEBANON COUNTY
 
A CLUSTER OF SLOW MOVING THUNDERSTORMS WAS LOCATED ACROSS NORTHEASTERN
LEBANON COUNTY BETWEEN GREENPOINT... LICKDALE AND NEAR THE EASTERN END
OF FORT INDIANTOWN GAP. RADAR INDICATED NEARLY 2 INCHES OF RAIN IN THE
PAST HOUR IN THIS AREA. THE HEAVY RAIN WILL CONTINUE THROUGH 4 PM. THE
THUNDERSTORMS MAY DRIFT SOUTHWARD ACROSS CENTRAL LEBANON COUNTY.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
GRUMM/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, 1 hour 32 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.