Flash Flood Warning 72, NWS State College, PA

Issued

May 5, 1998, 10:13 PM EDT (02:13 UTC)

Expired

May 6, 1998, 2:15 AM EDT

In force

4 hr

Issued by

NWS State College, PA

Area

Whole counties; the outline is the Mesonet’s reconstruction

Counties Cambria County, PA, Somerset County, PA

000 
TTAA00 KPHL 060219
FFWCTP
PAC111-021-060615-

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1013 PM EDT TUE MAY 5 1998

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS EXTENDED THE 
FLOOD WARNING FOR...

     SOUTHERN CAMBRIA COUNTY IN PENNSYLVANIA
     NORTHERN SOMERSET COUNTY IN PENNSYLVANIA

   * UNTIL 215 AM EDT

   * AT 1010 PM EDT STATE COLLEGE DOPPLER RADAR CONTINUED TO SHOW A 
SLOW MOVING AREA OF RAIN SHOWERS AND THUNDERSTORMS OVER THE REGION  
FROM JOHNSTOWN SOUTH INTO NORTHERN SOMERSET COUNTY.

IN EXCESS OF 1.5 INCHES OF RAIN HAS BEEN REPORTED FROM THESE SHOWERS 
AND THUNDERSTORMS...CAUSING NUMEROUS ROAD CLOSURES...AS WELL AS MANY 
SMALL STREAMS AND CREEKS TO OVERFLOW THEIR BANKS.

THE HEAVY RAIN IS EXPECTED TO TAPER TO MORE SCATTERED SHOWERS TOWARD 
MIDNIGHT...BUT RUNOFF FROM THE EARLIER HEAVY RAIN WILL CONTINUE TO 
CAUSE PROBLEMS INTO THE EARLY MORNING HOURS.

A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. 
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. 
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE 
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS 
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY 
AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK 
HIGHER GROUND.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
STATE COLLEGE PA.

LAT...LON 4016 7872 4001 7879 4003 7922 4055 7889
          4049 7856 4032 7864 4024 7868
LA CORTE

NWS State College, PA wrote its last area forecast discussion before this flash flood warning went out at May 5, 8:50 PM EDT, 1 hour 23 minutes earlier.

CENTRAL PENNSYLVANIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
850 PM EDT TUE MAY 5 1998

...SUGGESTIONS...

...PIT...AM NOT AS OPTIMISTIC FOR WED AS ZONES ARE. WITH COLD POOL
SLOW TO DEPART...HAVE TO WONDER IF A PM RW/TRW WILL REDEVELOP ON
BACK SIDE OF SLOW TO LEAVE UPPER LOW. EARLY MORNING PACKAGE MAY HAVE
TO DEAL WITH LINGERING EARLY CLOUDS AND PATCHY FOG AS WELL.

...PHL...OTHER THAN POSSIBLE THUNDER WED...NOTHING TO SUGGEST.

...DISCUSSION...

QUICK DISCUSSION DUE TO WEATHER TONIGHT. MESOSCALE CONVERGENCE SHOWS
UP NICELY IN ADAP AND PSU MESO GRAPHICS...AND ALL POINT TO WHERE THE
ACTION IS OVER SRN LAUREL HIGHLANDS. MINOR BUT WIDESPREAD FLOODING
BEING REPORTED...MAINLY OF THE ROAD CLOSING VARIETY. EVEN SEVERAL
REPORTS OF HAIL JUST UNDER SEVERE SIZE WHICH PROMPTED A FEW SVR TSTM
WARNS.

ACTIVITY SHUD TAKE DIURNAL NOSEDIVE WHICH MAY ALREADY BE STARTING TO
OCCUR. RAINS IN THE EAST DEFINITELY SHOWING SIGNS OF BREAKING UP
WITH CEILING AT WILLIAMSPORT RISING EVEN WHILE THE RAIN CONTINUES.
THE STUBBORN UPPER LOW FINALLY CRAWLS PAINFULLY SLOWLY OFF TO OUR
EAST TOMORROW WHICH SHUD SHIFT THE THREAT FOR CONVECTION EAST AS
WELL. HOWEVER I AM NOT AS CONFIDENT ABOUT AS NICE A DAY AS THE
ZONES SUGGEST. WE WILL STILL HAVE THE WRN OR NWRN QUAD OF THE UPPER
LOW AND COLD POOL MEANDERING SLOWLY EAST THROUGH THE EXTREME ERN
PART OF OUR CWA. MESO ETA KEEPS SUGGESTION OF MARGINAL INSTABILITY
AROUND MAX HEATING AND OTHER MODELS EVEN PAINT SMALL QPF IN WHAT
LOOKS TO BE A MID LEVEL DEFORMATION ZONE. MODEL SOUNDINGS SHOW
FAIRLY STEEP LAPSE RATES WITH PRETTY COLD AIR ALOFT STILL IN PLACE.
I LIKE THE MENTION OF CHC POPS IN ERN ZONES...WUD EVEN SUGGEST THE
MENTION OF A THUNDERSTORM. WUDNT MIND SIMILAR WORDING FOR WRN ZONES
AS WELL.

REST OF FCST BLURS INTO ANOTHER SHORTWAVE APPROACHING FOR END OF
WEEK AS BLOCKY SLOW TO BREAK DOWN PATTERN. ANY BREAK WUD SEEM TO BE
FOR LATER TMRW FIRST HALF OF THU...BEFORE CLOUDS AND THREAT FOR
PRECIP COME BACK AGAIN...PROBABLY TO RUIN THE FOURTH WEEKEND IN A
ROW.

LA CORTE

Flash Flood Warnings in Pennsylvania, 1998Every flash flood warning in 1998

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.