Alert archive / Pennsylvania / Flash Flood Warnings in 1996

Flash Flood Warning 2, NWS State College, PA

January 19, 1996Cambria County, Somerset County, Pennsylvania

NWS State College, PA issued this flash flood warning at Jan 19, 1996, 5:00 AM EST for Cambria County, Somerset County, Pennsylvania. It was in force for 5 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
Jan 19, 1996, 5:00 AM EST (10:00 UTC)
Expired
Jan 19, 1996, 9:30 AM EST
In force
5 hr
Issued by
NWS State College, PA
Area
Whole counties

Counties Cambria County, PA, Somerset County, PA

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 00:00Z, 10.0 hours before the alert went out and 106 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, Pittsburgh, PA at 00:00Z on 1996-01-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Pittsburgh, PA at 00:00Z on 1996-01-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 682 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
972 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
682 m²/s²
0-3 km storm-relative helicity
1061 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KHAR 191043 COR
FFWCTP
PAC021-033-047-083-111-123-191430-

BULLETIN - EBS ACTIVATION REQUESTED
FLOOD WARNING FOR SMALL STREAMS...URBAN AND POOR DRAINAGE AREAS.
NATIONAL WEATHER SERVICE STATE COLLEGE PA
530 AM EST FRI JAN 19 1996

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A
FLOOD WARNING FOR SMALL STREAMS...URBAN AND POOR DRAINAGE AREAS
EFFECTIVE UNTIL 930 AM EST FOR PEOPLE IN THE FOLLOWING LOCATIONS...

IN  PENNSYLVANIA

   ...CAMBRIA COUNTY...CLEARFIELD COUNTY...ELK COUNTY
   ...MCKEAN COUNTY...SOMERSET COUNTY...WARREN COUNTY

ONE-HALF INCH TO ONE INCH OF RAIN HAS FALLEN ACROSS PORTIONS OF THESE
COUNTIES DURING THE PAST SEVERAL HOURS. THIS HAS RESULTED IN WIDESPREAD
STREET FLOODING WHERE POOR DRAINAGE EXISTED. THE COMBINATION OF
ADDITIONAL HEAVY RAIN AND SNOWMELT THIS MORNING WILL LIKELY CAUSE SMALL
STREAMS AND CREEKS TO LEAVE THEIR BANKS.


DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.  THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY.  VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVE TO HIGHER GROUND.


WINTHER

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 Jan 19, 3:07 AM EST, 1 hour 53 minutes earlier.

Area forecast discussion, Jan 19, 3:07 AM EST, 1 hour 53 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
300 AM EST FRI JAN 19 1996

HAVE ALREADY TALKED TO BOTH PIT AND PHL FOR COORD.

RADAR WENT DOWN FOR .5 HR BUT BACK-UP NOW.

RADAR SHOWS AN AREA OF PRECIP MOVING THRU THE UPPER SUS ATTM.
PRECIP AMOUNTS HAVE BEEN BETWEEN .25 TO .50 AS A RESULT.

COLD FRONT JUST W OF A CLE-ZZV LINE AND MOVING EAST. FRONT WILL
MOVE INTO CENTRAL PA ARND 16Z AND INTO EAST PA 18-19Z. QUICK
BURST OF SNOW LIKLY BEHIND FRONT AS COLD AIR RACES EAST AT SFC
AND DIFF VORT ADV QUICKLY FOLLOWS. NO FLOODING PROBLEMS ATTM BUT
EXPECT THAT WILL CHANGE LATER THIS MORNING AS RAIN MOVES INTO
CENTRAL PA. SEEMS CONSENSUS IS TO FOLLOW ETA/AVN FCST PRECIP
AMOUNTS.

NOTICED NGM TRIES TO FORM A WAVE ON FRONT ACROSS VA AND QUICKLY
LIFT IT NE. IF THIS OCCURED...FRONT WOULD SLOW A BIT ALLOWING E
PA TO SEE GREATER PRECIP AMOUNTS. COMBINATION OF SNOW MELT AND 1
INCH OF RAIN WILL CREATE URBAN FLOODING PROBLEMS.

FAIR WX FOR SAT.
PIT/PHL AGREE WITH THINKING.

...LAKE SNOW OUTLOOK...

FRI 7 AM TO FRI 7 PM...N
FRI 7 PM TO SAT 7 AM...N
SAT 7 AM TO SAT 7 PM...N

WINTHER

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 19, 5:00 AM ESTFlash Flood WarningCTPElk, McKean, Warren5 hr
Jan 19, 5:00 AM ESTFlash Flood WarningCTPClearfield5 hr
Jan 19, 6:23 AM ESTFlash Flood WarningCTPBlair, Centre, Clinton, Huntingdon4 hr
Jan 19, 6:23 AM ESTFlash Flood WarningCTPCameron, Potter4 hr
Jan 19, 6:23 AM ESTFlash Flood WarningCTPBedford, Fulton4 hr
Jan 19, 6:47 AM ESTFlash Flood WarningCTPMifflin, Union4 hr
Jan 19, 6:47 AM ESTFlash Flood WarningCTPLycoming, Tioga4 hr
Jan 19, 6:47 AM ESTFlash Flood WarningCTPAdams, Cumberland, Franklin4 hr
Jan 19, 6:47 AM ESTFlash Flood WarningCTPJuniata, Perry, Snyder4 hr
Jan 19, 7:01 AM ESTFlash Flood WarningCTPDauphin, Lancaster, Lebanon, Northumberland, Schuylkill, York5 hr
Jan 19, 7:01 AM ESTFlash Flood WarningCTPColumbia, Sullivan5 hr
Jan 19, 7:01 AM ESTFlash Flood WarningCTPMontour5 hr
Jan 19, 8:55 AM ESTFlash Flood WarningCTPBedford, Blair, Fulton, Huntingdon6 hr
Jan 19, 8:55 AM ESTFlash Flood WarningCTPCambria, Clearfield, Somerset6 hr
Jan 19, 8:55 AM ESTFlash Flood WarningCTPCameron, Elk, McKean, Warren6 hr
Jan 19, 9:17 AM ESTFlash Flood WarningCTPCumberland, Franklin, Juniata, Perry6 hr
Jan 19, 9:17 AM ESTFlash Flood WarningCTPLycoming, Potter, Tioga6 hr
Jan 19, 9:17 AM ESTFlash Flood WarningCTPAdams6 hr
Jan 19, 9:17 AM ESTFlash Flood WarningCTPCentre, Mifflin6 hr
Jan 19, 9:17 AM ESTFlash Flood WarningCTPClinton6 hr
Jan 19, 10:07 AM ESTFlash Flood WarningCTPColumbia, Dauphin, Montour, Northumberland, Schuylkill, Snyder and 1 more5 hr
Jan 19, 10:07 AM ESTFlash Flood WarningCTPLancaster, Lebanon, York5 hr
Jan 19, 10:07 AM ESTFlash Flood WarningCTPSullivan5 hr
Jan 19, 11:37 AM ESTFlash Flood WarningCTPMcKean3 hr

Nearby

Flash Flood Warnings in Pennsylvania, 1996Every flash flood warning in 1996

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.