Alert archive / Pennsylvania / Flash Flood Warnings in 1998

Flash Flood Warning 76, NWS State College, PA

June 13, 1998Schuylkill County, Pennsylvania

NWS State College, PA issued this flash flood warning at Jun 13, 1998, 5:09 PM EDT for Schuylkill County, Pennsylvania. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 13, 1998, 5:09 PM EDT (21:09 UTC)
Expired
Jun 13, 1998, 8:10 PM EDT
In force
3 hr
Issued by
NWS State College, PA
Area
Whole counties

County Schuylkill County, PA

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 9.2 hours before the alert went out and 220 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 1998-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 38 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 1998-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
38 J/kg
Mixed-layer CIN
-154 J/kg
Mixed-layer LCL
1171 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
1 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KCTP 132110
FFWCTP
PAC071-107-140010-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
509 PM EDT SAT JUN 13 1998

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SCHUYLKILL COUNTY IN EAST CENTRAL PENNSYLVANIA
  LANCASTER COUNTY IN SOUTHEASTERN PENNSYLVANIA

* UNTIL 810 PM EDT

* AT 500 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAIN LANCASTER AND SCHUYLKILL
  COUNITES...MOVING SLOWLY EAST.  RAIN WILL TAPER OFF AFTER 6
  PM...BUT SMALL STREAMS AND CREEKS WILL OVERFLOW THEIR BANKS.

* DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD!

JUNG/OSTUNO


&

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS State College, PA wrote its last area forecast discussion before this flash flood warning went out at Jun 13, 1:45 PM EDT, 3 hours 24 minutes earlier.

Area forecast discussion, Jun 13, 1:45 PM EDT, 3 hours 24 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
145 PM EDT SAT JUN 13 1998

WORK ZONES TO BE SENT TO PIT AND PHL BY 230 PM.

...DISCUSSION...

TSRA DEVELOPING RIGHT ON Q WITH SMALL HAIL REPORTED IN OGLESTOWN...
NORTHEAST SOMERSET COUNTY. VIL OF 34 WHILE THIS WAS OCCURING.  VIL
BUMPED UP TO 41 AT 1255 PM SO WE WARNED SOUTHERN BLAIR COUNTY.
GETTING REPORTS OF 35 MPH AND VERY HEAVY RAIN FROM FULTON AND
SOUTHERN BLAIR COUNTIES.  STORMS SEEM TO BE INTENSIFYING SO IT WILL
BE A BUSY AFTN.

HENCE FORTH NO TIME TO BE VERBOSE BUT DO WANT TO THANK TONY FOR
PHONE COORD.  AGREE THAT FFA SHUD BE LEFT AS IS.  WILL HAVE TO WAIT
ON WHETHER TO ADD YORK COUNTY.  BUT PIVOT POINT ON NEW ETA APPRS TO
BE A BIT FURTHER EAST SO +TSRA SHUD MOVE THRU YORK B4 STALLING E OF
THE RIVER.  IF TSTM COMPLEX BEGINS SLOWING DOWN WILL COORD EXPANSION
OF FFA.

HEAD

The office that day

Everything else NWS State College, PA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 13, 11:16 AM EDTSevere Thunderstorm WarningCTPSomerset59 min
Jun 13, 12:58 PM EDTSevere Thunderstorm WarningCTPBlair47 min
Jun 13, 3:56 PM EDTSevere Thunderstorm WarningCTPSchuylkill59 min
Jun 13, 5:09 PM EDTFlash Flood WarningCTPLancaster3 hr

Nearby

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

Sources

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.