Flash Flood Warning 70, NWS State College, PA

Issued

Jun 18, 1996, 8:07 PM EDT (00:07 UTC)

Expired

Jun 18, 1996, 11:15 PM EDT

In force

3 hr

Issued by

NWS State College, PA

Area

Whole counties

County Franklin County, PA

The Sterling radar (KLWX), 108 km from the middle of the area, began a volume at 00:11 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 190008
FFWCTP
PAC055-190315-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
807 PM EDT TUE JUN 18 1996
 
THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1115 PM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN  PENNSYLVANIA
 
   ...FRANKLIN COUNTY
 
AT 805 PM STATE COLLEGE DOPPLER INDICATED NEARLY 2 INCHES OF RAIN HAS
FALLEN IN THE LAST HOUR NEAR LETTERKENNY ARMY DEPOT IN FRANKLIN COUNTY.
THUNDERSTORMS WITH HEAVY RAINFALL WILL CONTINUE THROUGH THE EVENING WITH
AN ADDITIONAL 1 TO 2 INCHES OF RAIN EXPECTED BY 10PM.
 
FLOODING OF POOR DRAINAGE AREAS AND SMALL STREAMS IS LIKELY TO OCCUR.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT.  IT'S
IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR
CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS.  CAMPERS SHOULD
AVOID CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS.
 
LA CORTE/NICOSIA
 
&

NWS State College, PA wrote its last area forecast discussion before this flash flood warning went out at Jun 18, 1:38 PM EDT, 6 hours 29 minutes earlier.

CENTRAL PENNSYLVANIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
140 PM EDT TUE JUN 18 1996

...DISCUSSION...
VERY QUICK DISCUSSION AS WE ARE JUST RECOVERING FROM BIG TIME EQUIP
PROBS AND STILL TRYING TO CATCH UP.

LAST NIGHT'S CONVECTION SEEMS TO HAVE CAUSED SFC BOUNDARY TO SETTLE
OVER SRN PART OF REGION. THIS SHOWS UP IN ADAP SSL/SSC/STA
PRODUCTS. BOUNDARY SEEMS TO BE SOUTH OF MOST OF CTP CWA WITH 80S
AND HUMID OVER SWRN SECTIONS AND COOLER CLAMMY WX MOST OF THE REST
OF THE AREA. SEEMS TO BE SOME BOUNDARY ORIENTED NE TO SW OVER OHIO
VALLEY WHERE SUNSHINE IS MORE PLENTIFUL AND CONVECTION IS FIRING.

QUESTION IS WHERE TO PLACE AXIS OF HEAVIEST PRECIP? HAS ALREADY
RAINED ALL DAY UP NORTH AND STNRY BOUNDARY WILL LIKELY CONTINUE THE
PRECIP GOING WELL INTO THE EVENING. CONCERN IS THAT PRECIP WILL
BECOME MORE CONVECTIVE THUS LOCALLY HEAVY. MODELS MAINTAIN JET
ENTRANCE REGION JUST TO OUR NORTH AND EAST THRU MOST OF PROG CYCLE.
LOWER BRANCH OF THIS THERMALLY DIRECT TRANSVERSE CIRCULATION HELPS
SUPPORT LOW LEVEL BOUNDARY MOVING ONLY SLOWLY ALLOWING IT TO ACT AS
LOW LEVEL CONVERGENCE ZONE THRU AT LEAST MUCH OF WED.

HAVING LIMITED DATA TO WORK MAKES SUGGESTING A BETTER PLACE FOR
POSSIBLE FFA EXTENSION OR REFINEMENT DIFFICULT. WILL GO ALONG WITH
WFO DECISIONS ON THIS SUBJECT.

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.