Flash Flood Warning 41, NWS State College, PA

Issued

Aug 20, 1999, 5:50 PM EDT (21:50 UTC)

Expired

Aug 20, 1999, 10:00 PM EDT

In force

4 hr

Issued by

NWS State College, PA

Area

Whole counties; the outline is the Mesonet’s reconstruction

County McKean County, PA

000 
TTAA00 KCTP 202152
FFWCTP
PAC083-210200-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
550 PM EDT FRI AUG 20 1999

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  MCKEAN COUNTY.

* UNTIL 1000 PM EDT.

* AT 545 PM EDT...RADAR SHOWED SCATTERED THUNDERSTORMS ACROSS MUCH   
  OF MCKEAN COUNTY...WHICH WERE WEAKENING. THE LATEST RADAR          
  TRENDS INDICATE THAT THE HEAVY RAINFALL HAS ENDED FOR THE TIME     
  BEING IN THE BRADFORD AREA...WHICH HAS BEEN HIT EXTREMELY HARD.    
  RADAR ESTIMATED THAT OVER 8 INCHES OF RAIN HAS FALLEN IN THE       
  BRADFORD AREA SINCE THIS MORNING.  

RUNOFF FROM THE HEAVY RAINFALL CONTINUES TO CAUSE SERIOUS...LIFE 
THREATENING FLASH FLOODING IN THE BRADFORD AREA. MCKEAN COUNTY 
EMERGENCY MANAGEMENT OFFICIALS REPORT NUMEROUS ROADS CLOSED FROM 
FLOODING IN THE BRADFORD AREA. TWO ROADS HAVE BEEN WASHED OUT 
ENTIRELY. THERE WERE MULTIPLE REPORTS OF HOMES FLOODED...WITH 
NUMEROUS WATER RESCUES TAKING PLACE. THE TUNUNGANT CREEK WAS 
REPORTED TO BE OUT OF ITS BANKS AND FLOODING AN APARTMENT BUILDING 
AND PARTS OF ROUTE 219 NEAR BRADFORD. THERE HAVE BEEN REPORTS OF 
COLLAPSED BUILDINGS DUE TO THE FLOODING....AS WELL AS REPORTS OF 
PEOPLE STRANDED IN CARS...CARS FLOATING DOWN ROADWAYS AND 
EVACUATIONS. 

ONCE AGAIN...THIS IS A SERIOUS...LIFE THREATENING FLOOD 
SITUATION IN THE BRADFORD AREA.  

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS 
IMMINENT. NEVER ATTEMPT TO CROSS HIGH WATER IN A VEHICLE OR ON FOOT! 
IF YOU LIVE IN A FLOOD PRONE AREA...ACT NOW AND MOVE TO HIGHER 
GROUND! 

.END/ NICOSIA/ONDREJIK 

LAT...LON 4190 7885 4166 7891 4166 7824 4201 7831

NWS State College, PA wrote its last area forecast discussion before this flash flood warning went out at Aug 20, 1:45 PM EDT, 4 hours 5 minutes earlier.

CENTRAL PENNSYLVANIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
145 PM EDT FRI AUG 20 1999

BUSY MORNING...AS PV LOBE MET UP W/AREA OF OROGRAPHIC ENHANCEMENT TO
CONTINUALLY REGENERATE TSRA W/BIG PCPN NUMS OV MID SUSQ VLY. WE GOT
OUR SERVICE HYDROLOGISTS/ FEET WET TODAY...AS THE DROUGHT HAS
PRECLUDED ANY FLOODING PROBLEMS AS OF LATE. RDR TRENDS CONT TO DEVLP
SHRA/TSRA OV CENT PA (ESP JUST TO S OF STC ON TUSSEY MTN)... AND
PUSHING MOD RAFL INTO NE PA ATTM.

ALL MDLS COMING TOGETHER ON THE OPEN WAVE SCENARIO...FINALLY. AXIS
OF HEAVIEST PCPN TO FALL IN NW/SE ORIENTED LINE JUST TO N AND E OF
AREAS W/PROBLEMS NOW. UGH. THE PIVOT OF BIG TIME QPFS ON MOST OF THE
MDLS RIGHT OV THAT REGION...AND THUS...FFA MAY BE NEEDED FOR TONIGHT
INTO SAT. STORM MOTION VECTORS CONT TO BE VERY SLIGHT TO THE N&E.
PWS WL RIDE NEAR 2...BUT POSSIBLE TROPICAL CONNECTION NOT ACCOUNTED
FOR IN THIS CALC. SPC JUST PERKED UP TO THESE SLOW MOVERS...HPC
MENTIONED IT YSTDY IN PERSONAL CONVERSATION - GOOD DEAL NCEP  WL
HOLD THE FFA JUST N OF MDT AT THIS TIME...BUT INCLUDE UNV AND BFD-
WHERE MUCHO WATER HAS ALREADY FALLEN.

SINCE MDLS ARE COMING TOGETHER...RIGHT NOW...OVER ME...I WL ROLL
WITH THE FLOW. TAPERING POPS IN OUR SWRN COS AND KEEPING MENTION OF
TORRENTIAL DOWNPOURS IN PLACES FM UNV N&E. WON/T GET TOO WORDY WITH
DETAILS OF FCST NOW OTHER THAN TO SAY THINGS LOOK TO TAPER OFF W/
ONLY WRAP AROUND LEFT BY SAT NITE. XTNDD THOUGHTS: PUT IN MENTION OF
SHRA ON MON...AND LEAVE TUE/WED AS FAIR WORDINGS.

WORK ZONE WIBIS BY 330 PM...AS TIME IS TIGHT THIS AFTN.

.CTP...FFA TONGIGHT AND SAT FOR NRN MTNS AND MID/UPR SUSQ VLYS.

DANGELO

Flash Flood Warnings in Pennsylvania, 1999Every flash flood warning in 1999

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.