Flash Flood Warning 66, NWS State College, PA

Issued

Jun 17, 1996, 8:00 PM EDT (00:00 UTC)

Expired

Jun 17, 1996, 11:00 PM EDT

In force

3 hr

Issued by

NWS State College, PA

Area

Whole counties

Counties Lancaster County, PA, Lebanon County, PA

The State College radar (KCCX), 161 km from the middle of the area, began a volume at 00:04 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 180007
FFWCTP
PAC071-075-180300-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
800 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
 
   ...EASTERN LANCASTER COUNTY...NORTHERN LEBANON COUNTY
 
DOPPLER RADAR ESTIMATED THAT 4.9 INCHES OF RAIN HAS FALLEN IN NORTHERN
LEBANON COUNTY CLOSE TO I-81 NEAR LICKDALE SINCE EARLY AFTERNOON.
DOPPLER RADAR ESTIMATED THAT BETWEEN 2 AND 3 INCHES OF RAIN HAS FALLEN
IN FAR EASTERN LANCASTER COUNTY SINCE THIS AFTERNOON. LIGHT TO MODERATE
RAIN WAS STILL FALLING OVER THESE AREAS AS THE HEAVY RAIN HAS MOVED TO
THE EAST. EXPECT THE RAIN TO TAPER OFF BETWEEN 9 AND 10 PM.
 
EVENTHOUGH THE HEAVY RAIN HAS ENDED... RUNOFF FROM THE HEAVY RAIN
OF EARLIER TODAY STILL WILL CAUSE FLOODING PROBLEMS... ESPECIALLY IN
LOW-LYING AREAS.
 
THE LANCASTER COUNTY EMA REPORTS ONE LANE OF PROSPECT ROAD WAS STILL
FLOODED IN THE TOWN OF COLUMBIA.
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS.  IF FLASH FLOODING IS
OBSERVED...ACT QXUICKLY.  MOVE UP TO ESCAPE FLOOD WATERS.  DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
 
NICOSIA
 
 
&

NWS State College, PA wrote its last area forecast discussion before this flash flood warning went out at Jun 17, 7:53 PM EDT, 7 minutes earlier.

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

...ZONE SUGGESTIONS...
INC POPS WRN AND NRN ZONES AS POSSIBLE MCS ACTIVITY MOVES INTO REGION.
FOG WILL BE A PROBLEM ELSEWHERE...ESPECIALLY CNTRL MTS AND LOWER SUS VALLEY WHERE
COPIOUS AMOUNTS OF RAIN HAVE FALLEN.

MENTION TSTM ACTIVITY ON TUES AFTN INTO EVE.

...PIT/PHL...

...DISCUSSION...BUSY NIGHT WITH FLOODING SO WILL BE QUICK....

STALLED FRONTAL BOUNDARY DRAPED ACROSS NRN PA THIS EVENING.  IN SERN AND CNTRL
SECTIONS HIGH DEW POINT AIR AND LL CONVERGENCE HAVE PRODUCED LOCALLY HEAVY RAINS.
PORTIONS OF SOUTHERN CENTRE COUNTY HAVE RECEIVED CLOSE TO 4 INCHES OF RAIN.
ABOUT 3.5 OF WHICH FELL IN ABOUT 1 HOUR.  REPORTS OF FLOODING AND HOUSES FALLING
INTO SINK HOLES HAVE BEEN REPORTED IN SRN CENTRE COUNTY.

THE BOUNDARY ACROSS NRN PA WILL SLOWLY SLIDE INTO NY OVER NIGHT.  THE MESO AND
ETA BOTH SHOW MODERATE SRLY FLOW AND NOSE OF WARM MOIST AIR INTO WRN PA.  GOES-8
IR SHOWS SERIES OF MCS OVER MI.  AN ANTICYCLONIC TRACK WOULD PUT THESE OR THE
REMNANTS THEREOF OVER WRN PA AFTER MIDNIGHT TONIGHT.  GOES-8 WV SHOWS THE "RING
OF FIRE" AROUND THE UPR LEVEL RIDGE FROM OK/AR TO MI.  WOULD ANTICIPATE THE RING
TO MOVE INTO WRN PA OVERNIGHT WITH MAX ACTIVITY AROUND 06 UTC.  WOULD RECOMMEND
PUTTING MORE POPS IN WRN PA AND PSBLY NRN SECTIONS AS FAR EAST AS WILLIAMSPORT.

DUE TO RAIN...HIGH DEW POINTS IF RAIN AND THUNDER ARE NOT A PROBLEM...FOG WILL
BE IN MANY LOCATIONS OVERNIGHT.  FOG SHOULD BURN OFF 1-2 H AFTER SUNRISE ON TUES.

BASED ON MODEL INSTABILITY...DIV...MOISTURE...WOULD ANTICIPATE YET ANOTHER ROUND
OF TSTM ACTIVITY AFT 17Z ON TUES INTO TUES NIGHT.  WITH HIGHJ PRECIP WATER...WOULD
ANTICIPATE SIMILAR PROBLEMS AS WE HAD TODAY...MOST LIKELY IN WRN PART OF STATE.
MODEL PW'S SUGGEST 1-2 INCHES FROM TSTMS IN SHORT PERIOD OF TIME ARE LIKELY.

WARM MOIST UNSTABLE AIR WILL DOMINATE THROUGH WED.
GRUMM

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.