Alert archive / Pennsylvania / Flash Flood Warnings in 1996

Flash Flood Warning 126, NWS State College, PA

August 8, 1996Warren County, Pennsylvania

NWS State College, PA issued this flash flood warning at Aug 8, 1996, 2:01 PM EDT for Warren County, Pennsylvania. It was in force for 4 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: Aug 8, 1996, 2:01 PM EDT (18:01 UTC)
Expired: Aug 8, 1996, 6:00 PM EDT
In force: 4 hr
Issued by: NWS State College, PA
Area: Whole counties

County Warren County, PA

The radar

The Buffalo radar (KBUF), 134 km from the middle of the area, began a volume at 18:04 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

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 6.0 hours before the alert went out and 133 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1268 J/kg
Mixed-layer CIN: -59 J/kg
Mixed-layer LCL: 1001 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 90 m²/s²
0-3 km storm-relative helicity: 72 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

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 Aug 8, 1:46 PM EDT, 15 minutes earlier.

Area forecast discussion, Aug 8, 1:46 PM EDT, 15 minutes before

CENTRAL PENNSYLVANIA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE STATE COLLEGE PA
145 PM EDT THU AUG 8 1996

...ZONE SUGGESTIONS...
...PIT...NO SIG CHANGES.
...PHL...WUD BE MORE PESSIMISTIC FRI...ESP LOWER SUSQ

...DISCUSSION...
CONVECTION ERUPTING ON SCHEDULE AS HIGH THETA-E AIR AND SFC TROF
APPROACH FROM THE OHIO VALLEY. ONLY QUESTION IS HOW MUCH CAN
ATMOSPHERE REBOUND IN LIEU OF LEADING SQUALL LINE MOVING EAST
ACROSS NRN ZONES NOW. ADAP SHOWS LI'S AS LOW AS -10 NOSING IN FROM
WEST. MODELS CONTINUE TO PUMP BIG PRECIP WATERS INTO LOCAL AREA AS
SFC FRONT SLIDES EAST. SO FAR SEVERE SIGNATURES HARD TO COME BY
WITH ONLY THE OCNL HIGH VIL. STORMS SHOWING SOME TENDENCY FOR
ROTATION IN PLACES BUT WINDS OFF RADAR REFLECT WEAK ATMOSPHERIC
FLOW.

FFA MAY HAVE TO BE EXTENDED LATER PENDING LATEST DEVELOPMENTS. WITH
BEST DYNAMICS YET TO COME OVERNIGHT...AND FEATURES MOVING INTO
DECELERATING FLOW THE DANGER IS FOR SLOW MOVING DOWNPOURS TO BEGIN
CAUSING FLOODING PROBLEMS.

DRY AIR SHUD BE SLOW TO MOVE EAST INTO PHL ZONES. WUD KEEP CLOUDY
SHOWERY CONDITIONS OVER ERN ZONES THRU AT LEAST A FRI AM HOURS...
POSSIBLY EVEN MOST OF DAY OVER LOWER SUSQ.

LA CORTE

In the hours before

Special weather statement, Aug 8, 10:35 AM EDT, 3 hours 26 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 8, 12:54 PM EDT	Severe Thunderstorm Warning	CTP	Potter	66 min
Aug 8, 1:57 PM EDT	Severe Thunderstorm Warning	CTP	Warren	63 min
Aug 8, 2:45 PM EDT	Severe Thunderstorm Warning	CTP	Elk, McKean	60 min
Aug 8, 4:16 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clearfield	59 min
Aug 8, 5:01 PM EDT	Flash Flood Warning	CTP	Blair, Clearfield	3 hr
Aug 8, 5:16 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	59 min
Aug 8, 5:58 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Cambria	62 min
Aug 8, 6:13 PM EDT	Flash Flood Warning	CTP	Somerset	3 hr

Nearby

Flash Flood Warnings in Pennsylvania, 1996 Every 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.