Alert archive / Pennsylvania / Flash Flood Warnings in 1996

Flash Flood Warning 99, NWS State College, PA

June 24, 1996Bedford County, Pennsylvania

NWS State College, PA issued this flash flood warning at Jun 24, 1996, 12:27 PM EDT for Bedford County, Pennsylvania. It was in force for 93 min. 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 24, 1996, 12:27 PM EDT (16:27 UTC)
Expired
Jun 24, 1996, 2:00 PM EDT
In force
93 min
Issued by
NWS State College, PA
Area
Whole counties

County Bedford County, PA

The radar

The State College radar (KCCX), 110 km from the middle of the area, began a volume at 16:26 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 4.5 hours before the alert went out and 150 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 1996-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 1996-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 square meters per square second.193958Sfc1 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1076 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
93 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 24, 9:30 AM EDT, 2 hours 57 minutes earlier.

Area forecast discussion, Jun 24, 9:30 AM EDT, 2 hours 57 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
930 AM EDT MON JUN 24 1996

NOT MUCH TIME TO LOOK AT GUIDANCE. PHL... NO FFA/S YET... WE WILL
CONT TO MONITOR FOR PSBL FFA THRU AFTRN IN SUS VLLY. PIT FFA/S
CURRENTLY IN EFFECT CAN EXPIRE AT 11 AM FOR COUNTIES. IF FFA IS
EXTENDED FOR SW PA FOR THIS AFTRN I WOULD INCLUDE CAMBRIA...
CLEARFIELD AND SOMERSET.

RADAR CONTS TO SHOW ACVTY FIZZLING OUT AS IT REACHES DEEPER INTO
THE STBL AIR OVR CWA. THERE IS CONTINUAL REDEVELOPMENT AND
INTENSIFICATION TO THE SW TWD THE HIER DWPTS AND MORE UNSTBL AIR.

MODELS INDICATE THAT WRM FRNT IN THE LOW-LVL/S PASS THRU THE
REGION THIS AFTRN WITH A RIBBON OF HIER THETA-E AIR WORKDING ACRS
ST IN ADVANCE OF MID LVL PV MAX. THIS PV MAX WILL CROSS SUS VLLY
THIS EVE AND CUD CONDITION ENV FOR SIG CNVTN AGAIN IN SUS VLLY
THIS AFTRN/EVE.

THAT/S IT.

NICOSIA

In the hours before

Special weather statement, Jun 24, 8:56 AM EDT, 3 hours 31 minutes before
PAZ010>012-017>019-024>028-033>036-041-045-046-049>052-056-057-
063>065-241800-
SPECIAL WEATHER STATEMENT- SEVERE THUNDERSTORM WATCH
NATIONAL WEATHER SERVICE STATE COLLEGE PA
900 AM EDT MON JUN 24 1996

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 2 PM FOR
MOST OF CENTRAL PENNSYLVANIA AND THE SUSQUEHANNA VALLEY...

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 2 PM FOR THE FOLLOWING
COUNTIES IN CENTRAL PENNSYLVANIA AND THE SUSQUEHANNA VALLEY REGION:

ELK... CAMERON... CLINTON...  LYCOMING... CLEARFIELD... CENTRE...

UNION... SNYDER... NORTHUMBERLAND... MONTOUR... CAMBRIA...

BLAIR... HUNTINGDON... MIFFLIN... JUNIATA... PERRY... DAUPHIN...

SOMERSET... BEDFORD... FULTON... FRANKLIN... CUMBERLAND... ADAMS

AND YORK.

A SEVERE THUNDERSTORM WATCH MEANS THAT THUNDERSTORMS HAVE THE
POTENTIAL TO PRODUCE DAMAGING WINDS IN EXCESS OF 58 MPH AND LARGE HAIL
3/4 INCHES OR GREATER.

ACROSS THE NORTHERN MOUNTAINS OF WESTERN PENNSYLVANIA... THUNDERSTORMS
WILL ALSO PRODUCE TORRENTIAL DOWNPOURS THAT COULD CAUSE FLASH FLOODING.
THUS... A FLASH FLOOD WATCH ALSO REMAINS IN EFFECT FOR THE NORTHERN
MOUNTAINS UNTIL 11 AM.

NICOSIA
Special weather statement, Jun 24, 11:56 AM EDT, 31 minutes before
PAZ004-005-010>012-017>019-024>028-033>036-041-045-046-049>052-
056-057-063>065-242200-
SPECIAL WEATHER STATEMENT- SEVERE THUNDERSTORM WATCH
NATIONAL WEATHER SERVICE STATE COLLEGE PA
1155 AM EDT MON JUN 24 1996

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 6 PM FOR
WARREN AND MCKEAN COUNTIES...
...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 2 PM FOR
MOST OF CENTRAL PENNSYLVANIA AND THE SUSQUEHANNA VALLEY...

A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 6 PM FOR
WARREN AND MCKEAN COUNTIES.

A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT UNTIL 2 PM FOR THE
FOLLOWING COUNTIES IN CENTRAL PENNSYLVANIA AND THE SUSQUEHANNA VALLEY
REGION:

ELK... CAMERON... CLINTON...  LYCOMING... CLEARFIELD... CENTRE...

UNION... SNYDER... NORTHUMBERLAND... MONTOUR... CAMBRIA...

BLAIR... HUNTINGDON... MIFFLIN... JUNIATA... PERRY... DAUPHIN...

SOMERSET... BEDFORD... FULTON... FRANKLIN... CUMBERLAND... ADAMS

AND YORK.

A SEVERE THUNDERSTORM WATCRH MEANS THAT THUNDERSTORMS HAVE THE
POTENTIAL TO PRODUCE DAMAGING WINDS IN EXCESS OF 58 MPH AND HAIL 3/4
INCHES OR GREATER IN AND CLOSE TO THE WATCH AREA.

NICOSIA

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 12:12 PM EDTSevere Thunderstorm WarningCTPFranklin, Fulton63 min
Jun 24, 12:12 PM EDTSevere Thunderstorm WarningCTPCumberland63 min
Jun 24, 12:27 PM EDTSevere Thunderstorm WarningCTPBedford93 min
Jun 24, 12:36 PM EDTSevere Thunderstorm WarningCTPAdams, York69 min
Jun 24, 3:05 PM EDTSevere Thunderstorm WarningCTPCambria, Somerset70 min
Jun 24, 3:25 PM EDTTornado WarningCTPCambria50 min
Jun 24, 3:50 PM EDTSevere Thunderstorm WarningCTPBedford, Blair70 min
Jun 24, 3:54 PM EDTFlash Flood WarningCTPBedford, Blair, Cambria, Somerset4 hr
Jun 24, 4:14 PM EDTSevere Thunderstorm WarningCTPSomerset61 min
Jun 24, 4:30 PM EDTSevere Thunderstorm WarningCTPFulton, Huntingdon60 min
Jun 24, 5:08 PM EDTSevere Thunderstorm WarningCTPFranklin67 min
Jun 24, 5:27 PM EDTSevere Thunderstorm WarningCTPAdams, Cumberland63 min
Jun 24, 5:54 PM EDTSevere Thunderstorm WarningCTPYork66 min
Jun 24, 6:46 PM EDTSevere Thunderstorm WarningCTPCumberland, Dauphin, Perry59 min
Jun 24, 7:59 PM EDTFlash Flood WarningCTPLebanon3 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.