Alert archive / Pennsylvania / Flash Flood Warnings in 1996

Flash Flood Warning 21, NWS State College, PA

January 19, 1996Clinton County, Pennsylvania

NWS State College, PA issued this flash flood warning at Jan 19, 1996, 9:17 AM EST for Clinton County, Pennsylvania. It was in force for 6 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, 9:17 AM EST (14:17 UTC)
Expired
Jan 19, 1996, 3:00 PM EST
In force
6 hr
Issued by
NWS State College, PA
Area
Whole counties

County Clinton County, PA

The radar

The State College radar (KCCX), 46 km from the middle of the area, began a volume at 14:19 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.

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 2.3 hours before the alert went out and 227 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 12:00Z on 1996-01-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 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, Pittsburgh, PA at 12:00Z on 1996-01-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -212 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
4 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
519 m above ground
0-6 km bulk shear
64 kt
0-1 km storm-relative helicity
-212 m²/s²
0-3 km storm-relative helicity
-237 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 KCTP 191418
FFWCTP
PAC001-027-035-041-055-067-081-087-099-105-117-192000-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD
NATIONAL WEATHER SERVICE STATE COLLEGE PA
917 AM EST FRI JAN 19 1996
 
THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS EXTENDED THE
FLOOD WARNING EFFECTIVE UNTIL  3 PM EST FOR PEOPLE IN THE
FOLLOWING LOCATIONS....
 
IN  PENNSYLVANIA
 
   ...ADAMS COUNTY...CENTRE COUNTY...CLINTON COUNTY
   ...CUMBERLAND COUNTY...FRANKLIN COUNTY...JUNIATA COUNTY
   ...LYCOMING COUNTY...MIFFLIN COUNTY...PERRY COUNTY...POTTER COUNTY
   ...TIOGA COUNTY
 
THE FLOOD WARNINGS HAVE BEEN EXTENDED UNTIL 3 PM EST THIS AFTERNOON...AS
SEVERE FLOODING DEVELOPED ACROSS MUCH OF THE AREA.  HEAVY RAINS ARE
EXPECTED TO CONTINUE OVER MUCH OF THE AREA THROUGH THE END OF THE
MORNING...THEN END EARLY IN THE AFTERNOON. RAINFALL IN EXCESS
OF 3 INCHES HAS BEEN ESTIMATED BY THE STATE COLLEGE RADAR OVER PARTS OF
THE AREA.
 
RAPID SNOWMELT AND THE HEAVY RAINS ARE CAUSING SEVERE FLOODING IN MANY
LOCATIONS.  ROADS AND BASEMENTS ARE FLOODED IN MANY LOCALITIES.
EVACUATIONS.  EVACUATIONS HAVE OCCURRED IN WESTERN PARTS OF THE STATE.
 
ROUTE 45 BETWEEN LEWISBURG AND STATE COLLEGE HAS BEEN WASHED OUT IN
SPRING MILLS IN CENTRE COUNTY.
 
AGAIN THIS IS A MAJOR FLOOD EVENT.  DO NOT TRY TO DRIVE THROUGH FLOODED
AREAS.
 
MOST DEATHS IN FLASH FLOODING OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A
SMALL ONE...ON FOOT.
 
DUNHAM

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 WarningCTPCambria, Somerset5 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, 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; radar from the NEXRAD Level II archive.