Alert archive / Pennsylvania / Flash Flood Warnings in 1996
Flash Flood Warning 127, NWS State College, PA
NWS State College, PA issued this flash flood warning at Aug 8, 1996, 5:01 PM EDT for Blair County, Clearfield 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
- Aug 8, 1996, 5:01 PM EDT (21:01 UTC)
- Expired
- Aug 8, 1996, 8:00 PM EDT
- In force
- 3 hr
- Issued by
- NWS State College, PA
- Area
- Whole counties
Counties Blair County, PA, Clearfield County, PA
The radar
The State College radar (KCCX), 40 km from the middle of the area, began a volume at 21:04 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
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 9.0 hours before the alert went out and 242 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.
- Mixed-layer CAPE
- 81 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 703 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 31 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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, 3 hours 15 minutes earlier.
Area forecast discussion, Aug 8, 1:46 PM EDT, 3 hours 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, 3:35 PM EDT, 1 hour 26 minutes before
PAZ004>006-010>012-017>019-024>026-033>035-037-041-045-090200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 328 PM EDT THU AUG 8 1996 A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNITL 10 PM FOR THE FOLLOWING COUNTIES IN CENTRAL PENNSYLVANIA: WARREN MCKEAN ELK CLINTON CAMERON CENTRE CLEARFIELD LYCOMING SULLIVAN TIOGA BEDFORD BLAIR CAMBRIA HUNTINGDON SOMERSET POTTER AN APPROACHING COLD FRONT AND THE FLOW OF WARM MOIST AIR AHEAD OF THIS FRONT WILL PRODUCE THUNDERSTORMS OVER MOST OF PENNSYLVANIA THIS EVENING AND EARLY TONIGHT. SOME OF THE THUNDERSTORMS WILL PRODUCE LOCALLY HEAVY RAINS...HAIL AND DAMAGING WINDS. STAY TUNED TO THE WEATHER CHANNEL...NOAA WEATHER RADIO OR YOUR FAVORITE TV OR RADIO STATION FOR POSSIBLE SEVERE THUNDERSTORM WARNINGS. GRUMM
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, 2:01 PM EDT | Flash Flood Warning | CTP | Warren | 4 hr |
| 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, 5:16 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, 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.