Flash Flood Warning 81, NWS State College, PA

Issued

Jun 19, 1996, 4:50 AM EDT (08:50 UTC)

Expired

Jun 19, 1996, 11:00 AM EDT

In force

6 hr

Issued by

NWS State College, PA

Area

Whole counties

Counties Adams County, PA, Franklin County, PA, York County, PA

The Sterling radar (KLWX), 106 km from the middle of the area, began a volume at 08:53 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 190850
FFWCTP
PAC001-055-133-191500-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
450 AM EDT WED JUN 19 1996
 
THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS EXTENDED THE
FLASH FLOOD WARNING UNTIL 1100 AM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN  PENNSYLVANIA
 
   ...ADAMS COUNTY...FRANKLIN COUNTY...YORK COUNTY
 
AT 450 AM...WEATHER SERVICE DOPPLER RADAR SHOWED AN AREA OF SHOWERS
AND THUNDERSTORMS MOVING ACROSS FRANKLIN... ADAMS AND YORK COUNTY.
ALTHOUGH LIGHTER THAN THE TORRENTIAL RAIN WHICH FELL OVERNIGHT...
THIS ADDITIONAL RAIN WILL ONLY ACT TO AGGRAVATE EXISTING FLOODING
PROBLEMS.  THIS IS A SERIOUS FLASH FLOODING EVENT WITH MAJOR PROBLEMS
OCCURRING IN THESE COUNTIES.
 
HARDEST HIT HAS BEEN ADAMS COUNTY...SPECIFICALLY THE GETTYSBURG AREA.
REPORTS OF UP TO 11 INCHES OF RAIN SINCE THE STORMS BEGAN YESTERDAY
IN THE GETTYSBURG AREA HAS CAUSED MAJOR FLOODING.  NUMEROUS EVACUATIONS
AND ROAD CLOSURES HAVE BEEN REPORTED.  ALL MAJOR ROADS IN GETTYSBURG ARE
CLOSED.
 
SPOTTER REPORTS IN FRANKLIN COUNTY INDICATE 6 INCHES OF RAIN FELL
BETWEEN 900 PM AND MIDNIGHT LAST NIGHT.  FLOODING FROM RUNOFF CONTINUES.
 
IN YORK COUNTY...THE CONEWAGO CREEK IS RISING RAPIDLY.... AND SOME
EVACUATIONS ALONG ITS REACH HAVE TAKEN PLACE.
 
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.  VEHICLEjS CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE TO HIGHER GROUND.
 
JUNG/NICOSIA
 
&

NWS State College, PA wrote its last area forecast discussion before this flash flood warning went out at Jun 19, 1:51 AM EDT, 2 hours 59 minutes earlier.

CENTRAL PENNSYLVANIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
150 AM EDT WED JUN 19 1996

ANOTHER ROUND OF FLOODING FOR THE CTP CWA TONIGHT.  FIRST AREA OF
ECHOES THAT CAUSED MUCH OF THE FLOODING PROBLEMS ACROSS THE SOUTH
CENTRAL MOUNTAINS INTO THE SOUTHEASTERN PORTION OF THE LOWER
SUSQUEHANNA VALLEY IS NOW SLOWLY SLIDING TO THE EAST.  RAFL HAS
ENDED IN FULTON COUNTY AND HAS JUST ABOUT MOVED OUT OF FRANKLIN.
DOPPLER RAINFALL ESTIMATES SEEM TO BE UNDERDONE QUITE A BIT THIS
EVENING.  SPOTTER REPORT FROM FRANKLIN COUNTY INDICATES 6 INCHES
FROM 9 PM TO 12 AM.  RADAR ESTIMATE WAS AROUND 2.8 INCHES.
COUNTIES CONTINUE TO HAVE PROBLEMS...AND HAVE REISSUED WARNINGS
TO 500 AM.

SECOND AREA OF CONCERN IS NOW A NEW ROUND OF THUNDERSTORMS MOVING
IN FROM THE WEST ACROSS THE PIT AREA.  LATEST MOVEMENT SHOWS THE
LINE OF STORMS MOVING TO THE EAST...PERHAPS A BIT TO THE
NORTHEAST.  THIS MOVEMENT MAY PRECLUDE THIS AREA OF HEAVY RAIN
FROM MOVING ACROSS THE SAME SOUTHERN TIER COUNTIES...AND THE NEXT
TIER OF COUNTIES TO THE NORTH OF THE PREVIOUS WARNINGS.

MESO ETA DID A GREAT JOB PINPOINTING THE HEAVY RAIN THIS EVENING
ACROSS THE SOUTHERN TIER COUNTIES.  THIS MODEL INDICATED THE AREA
OF RAIN CONTINUING EAST ACROSS THE LOWER SUSQUEHANNA VALLEY...
AND GIVEN CURRENT RADAR TREND LOOKS LIKE IT CONTINUES TO DO WELL.

LARGER SCALE MODELS INDICATE LOW LEVEL JET OVERNIGHT INTO WPA.
THIS WOULD BE SUPPORTING THE PCPN NOW OVER PIT AREA.  THIS JET
MAX FORECAST TO LIFT NORTH ACROSS PA DURING THE EARLY MORNING...
INTO SOUTHERN TIER OF NYS LATER THIS AFTERNOON.  MODEL QPF SHOWS
BULLSEYE OF PCPN MOVING NORTH INTO NYS AS WELL.  THIS WOULD ALSO
SUPPORT THE PCPN OVER WPA/OH MOVING ON A MORE ENE TRACK ACROSS
THE CENTRAL PORTIONS OF PA THIS MORNING.

FLOOD WATCHES SET TO EXPIRE AT 400 AM.  ATTM WOULD NOT ARGUE WITH
EXTENDING THE WPA WATCHES INTO THE DAY WEDNESDAY...ESPECIALLY
GIVEN THE LIKELIHOOD FOR WESTERN PA/OH CONVEC TION TO MOVE ACROSS
THE AREA.  IN THE EAST...MIDDLE SUSQ AND NORTH HAS BEEN SPARED SO
FAR...SO FLOODING POTENTIAL NOT AS GREAT HERE ATTM.  WOULD
HOWEVER EXTEND THE LOWER SUSQ WATCHES INTO WED MORNING.

JUNG

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.