Alert archive / Pennsylvania / Flash Flood Warnings in 1997
Flash Flood Warning 33, NWS State College, PA
NWS State College, PA issued this flash flood warning at Nov 7, 1997, 12:48 PM EST for Blair 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
- Nov 7, 1997, 12:48 PM EST (17:48 UTC)
- Expired
- Nov 7, 1997, 6:45 PM EST
- In force
- 6 hr
- Issued by
- NWS State College, PA
- Area
- Whole counties
County Blair County, PA
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 5.8 hours before the alert went out and 148 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 505 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 133 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCTP 071748 FFWCTP PAC013-072345- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 1248 PM EST FRI NOV 7 1997 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 645 PM EST FOR PEOPLE IN THE FOLLOWING LOCATIONS...... IN PENNSYLVANIA ...BLAIR COUNTY STATE COLLEGE DOPPLER RADAR CONTINUES TO SHOW HEAVY RAIN TRACKING OVER THE AREA. RADAR ESTIMATES THAT MORE THAN 2 INCHES OF RAIN HAS FALLEN AND REPORTS FROM EMERGENCY MANAGEMENT OFFICIALS INDICATE STREAMS ARE RUNNING NEAR BANK FULL. ADDITIONAL HEAVY RAIN WILL LAST INTO THE EVENING HOURS WITH FLOODING OF SMALL STREAMS AND CREEKS EXPECTED. DO NOT DRIVvE 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. LA CORTE &
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 Nov 7, 9:25 AM EST, 3 hours 23 minutes earlier.
Area forecast discussion, Nov 7, 9:25 AM EST, 3 hours 23 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 925 AM EST FRI NOV 7 1997 ...ZONE SUGGESTIONS... .PIT...WUD LOWER LAUREL HIGHLAND TEMPS TO UPPER 30S TODAY. WUD ALSO LEAVE OUT TIMING AND JUST MENTION RAIN HEAVY AT TIMES...EVEN FAR NW WHERE HOURLY PRECIP PLOTS INDICATE MORE THAN AN INCH THRU EVENING. .PHL...NO SIG CHANGES TO SUGGEST. ...DISCUSSION... RADAR SHOWS SIG PRECIP TRUCKING UP INTO LAUREL HIGHLANDS... WITH EVEN SOME SNOW REPORTED OVER HIGHER ELEVATIONS. SATELLITE SHOWS BLOSSOMING ENHANCEMENT SPIRALING UP FROM MID ATL REGION. DEEP EASTERLY FLOW INDICATED ON VWP AND MODEL OUTPUT. ALL THESE POINT TO A RAINY END OF THE WEEK AND POSSIBLY EVEN WELL INTO THE WEEKEND. BIGGEST DIFFERENCE TODAY AS COMPARED TO YESTERDAY IS MODEL IDEA OF BEING MORE GENEROUS WITH DEEPER FRONTOGENESIS ASSOC WITH EASTERLY LL JET AND RETREATING UL JET ENTRANCE REGION OVER NERN US. AS A RESULT...1ST PERIOD LOOKS LIKE A NO BRAINER. FIRST SURFACE WAVE IS JUST EAST OF HAT AT 12Z...A LITTLE SLOWER THAN THE ETA. MODELS CONTINUE THE IDEA OF DEEP EASTERLY FLOW THROUGH 24HRS. BEST WARM ADVECTION IS YET TO COME AS LOW LEVEL EASTERLY JET INCHES NORTH TODAY. MAX WARM ADVECTION AND FRONTOGENETIC FORCING LOOK TO BE CENTERED ON REGION LATER THIS AFTN ASSOC WITH LIFTING LL ISOTACH MAX. A COLD RAIN...HEAVY AT TIMES LOOKS LIKE THE FCST FOR TODAY. UPPER LOW CONTINUES NORTHEAST IN TIME WITH MODELS EVEN HINTING AT ANOTHER OFFSHORE DEVELOPMENT LATER IN FCST PERIOD AND HAVING IT SWING WESTWARD BACK INTO PA. THIS SHUD ASSURE KEEPING PRECIP IN THE FCST AS ANY NUMBER OF SHORTWAVES SPOKE UP AROUND DEEP UPPER LOW AS IT HEADS OUR WAY. FIRST SIGN OF IMPROVEMENT LOOKS TO BE LATER SUNDAY. IF AVN CAN BE TRUSTED...SUN WILL START OFF BLEAK BUT IMPROVE AS THE DAY WEARS ON AND NW FLOW DEVELOPS BEHIND LO AND STARTS DRYING US OUT. LA CORTE
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 7, 11:53 AM EST | Flash Flood Warning | CTP | Bedford | 6 hr |
| Nov 7, 12:23 PM EST | Flash Flood Warning | CTP | Cambria | 6 hr |
| Nov 7, 2:12 PM EST | Flash Flood Warning | CTP | Somerset | 6 hr |
| Nov 7, 4:50 PM EST | Flash Flood Warning | CTP | Bedford, Blair, Cambria, Clearfield, Somerset | 5 hr |
| Nov 7, 4:50 PM EST | Flash Flood Warning | CTP | Franklin, Fulton, Huntingdon | 5 hr |
| Nov 7, 4:50 PM EST | Flash Flood Warning | CTP | Elk | 5 hr |
| Nov 7, 5:39 PM EST | Flash Flood Warning | CTP | Adams, Cumberland | 4 hr |
Nearby
Flash Flood Warnings in Pennsylvania, 1997Every flash flood warning in 1997
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.