Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1995
Severe Thunderstorm Warning 201, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Jul 28, 1995, 8:21 PM EDT for Tioga County, Pennsylvania. It was in force for 69 min.
The area
The counties it named.
The facts
- Issued
- Jul 28, 1995, 8:21 PM EDT (00:21 UTC)
- Expired
- Jul 28, 1995, 9:30 PM EDT
- In force
- 69 min
- Issued by
- NWS State College, PA
- Area
- Whole counties
County Tioga County, PA
The nearest sounding before it
Buffalo Intl Airport, NY (KBUF), launched 00:00Z, 0.4 hours before the alert went out and 175 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
- 1147 J/kg
- Mixed-layer CIN
- -69 J/kg
- Mixed-layer LCL
- 1136 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 166 m²/s²
- 0-3 km storm-relative helicity
- 187 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KCTP 290020 RRA SVRCTP PAC117-290130- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 821 PM EDT FRI JUL 28 1995 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 930 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS...... IN PENNSYLVANIA ...TIOGA COUNTY AT 820 PM DOPPLER RADAR SHOWED A SEVERE THUNDERSTORM IN THE VICINITY OF WELLSBORO. THE STORM IS MOVING NORTHEAST AND SHOULD BE NEAR TIOGA BEFORE 9PM. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL TH,E STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS. LA CORTE &
What forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jul 28, 2:05 PM EDT, 6 hours 16 minutes earlier.
Area forecast discussion, Jul 28, 2:05 PM EDT, 6 hours 16 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 205 PM EDT THU JUL 27 1995 ...SHORT TERM... TRW DVLG IN WRN PA ATTM WHERE ADAP SHOWS LI/S TO -9. LEFT-OVER OUTFLO FROM THIS MORN/S CONVTN (SEEN ON ERLR VSBL IMAGERY) POSSBLY HAS TRIGGERED CONVTN. WV IMAGERY CONTS TO SHOW EWRD PROGRESSION OF UPR LVL S/W TWD PA ALSO HELPING SUPPORT CONVTN. THIS MORN/S 500 MB UPR AIR CHART AND 12Z MODEL RUNS SHOWS COOLER AIR AT 500 MB PRECEDING S/W TROF AXIS WHICH WAS STEEPENING LAPSE RATES ACRS WRN PA ATTM. LATEST ADAP CHARTS SHOW BEST SFC MOISTURE CONV TO THE E OF THIS DVLPG CONVTN IN CNTRL PA WHICH SUGGESTS ACVTY WILL HOLD TOGETHER AND CONT TO DVLP AS IT MOVS INTO CNTRL PA. SLIGHTLY MORE STBL AIR ACRS CNTRL PA WITH DWPTS IN THE UPR 60S WON/T HELP BUT SHUD STILL BE ENUF TO SUPPORT CNVTN LATE AFTRN/ERLY EVE INTO CNTRL/ERN PA. WUD CONT LIKELY POPS TRW THIS EVE CNTRL PA. ...LONGER TERM... MODELS ALL INDICATE THAT THIS S/W SLOWS DOWN AND GETS SHEARED OUT AS IT TRYS TO IMPINGE ON UPR HI OFFSHORE TONIGHT. MODELS SHOW THAT A LO-LVL SRLY WIND MAX DVLPS AHEAD OF THIS UPR LVL S/W E OF MTNS BY 00Z WHICH MAY HELP FOCUS CONVTN MORE. AT THE SAME TIME... THE NERN U.S LIES IN THE RIGHT ENTR REGION OF AN UPR LVL JET WHICH WILL ENHANCE UPR LVL DVRG ACRS THE REGION ABV THIS LO-LVL CONV REGION. PLENTY OF MOSITURE ARND... PWATS RUNNING NR 2.0 INCHES IN LWR SUS VLLY AT 00Z ON ETA/NGM (NO AVN GRIDS YET) AND WV VAPOR IMAGERY CONTINUES TO SHOW MOIST SWRLY FLO ARND UPR HI CIRCU. THINK CNTVN THAT IS FORMING IN WRN PA WILL MOV INTO ERN PA LATER THIS EVE AND CUD BECOME A HVY RAIN EVENT FOR LWR SUS VLLY. WUD CONSIDER HI POPS LWR SUS VLLY AND MENTION OF HVY DOWNPOURS IN FCST. THIS INITIAL S/W WILL OUTRUN SFC FRNT/PRES TROF THAT CURRENTLY RAIN ACRS LWR MI-IL. BOTH ETA/NGM ALL INDICATE AN AMPLIFICATION OF THE UPR LVL RDG ACRS THE GREAT LAKES IN RESPONSE TO WAA AHEAD OF A DVLPG STORM IN SC CANADA. WITH THE RDG BUILDING IN THE GREAT LAKES REGION... NEXT VORT LOBE RIDING ON TOP OF UPR RDG WILL DIVE A LITTLE FURTHER S BEING THE IMPETUS TO PUSH THIS FRNT/PRES TROF ACRS ST. MODELS DIFFER IN TIMING WITH NGM MOST AGRESSIVE. ETA A LITTLE SLOWER. LIKE ETA SINCE FRNT AND DRYER AIR LIKELY WILL HV A HARD TIME MAKING ANY PROGRESS E OF MTNS. WUD GO CHC POPS WRN/CNTRL CTP FA SAT AND KEEP POPS OUT SUS VLLY UNTIL EVE HRS AS FRNT TENDS TO GET HUNG UP. WILL MONITOR 88D NO ZONES. PFT/S OUT. NICOSIA
In the hours before
Local storm report, Jul 28, 3:34 PM EDT, 4 hours 47 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
334 PM EDT FRI JUL 28 1995
...A LONE THUNDERSTORM WENT SEVERE AS IT CROSSED THE MD/PA LINE
EARLY THURSDAY EVENING...JUL 27 1995...INFO. FROM WBC...THANKS...
610 PM FULTON PA SEVERAL TREES DOWN...ROOF OFF SHED
ON TOLLGATE RIDGE...1 MILE NORTH OF
MD/PA BORDER. DAMAGE ALONG RTE.
928.
MARTINLocal storm report, Jul 28, 3:38 PM EDT, 4 hours 43 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
334 PM EDT FRI JUL 28 1995
...A LONE THUNDERSTORM WENT SEVERE AS IT CROSSED THE MD/PA LINE
EARLY THURSDAY EVENING...JUL 27 1995...INFO. FROM WBC...THANKS...
610 PM FULTON PA SEVERAL TREES DOWN...ROOF OFF SHED
ON TOLLGATE RIDGE...1 MILE NORTH OF
MD/PA BORDER. DAMAGE ALONG RTE.
928.
MARtTINThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 2:10 AM EDT | Flash Flood Warning | CTP | Lancaster | 110 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 1995Every severe thunderstorm warning in 1995
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.