Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1995
Severe Thunderstorm Warning 158, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Jul 15, 1995, 6:51 PM EDT for Elk County, Pennsylvania. It was in force for 69 min.
The area
The counties it named.
The facts
- Issued
- Jul 15, 1995, 6:51 PM EDT (22:51 UTC)
- Expired
- Jul 15, 1995, 8:00 PM EDT
- In force
- 69 min
- Issued by
- NWS State College, PA
- Area
- Whole counties
County Elk County, PA
The radar
The State College radar (KCCX), 78 km from the middle of the area, began a volume at 22:50 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
Pittsburgh, PA (KPIT), launched 12:00Z, 10.9 hours before the alert went out and 166 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
- 4594 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 720 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -51 m²/s²
- 0-3 km storm-relative helicity
- 1 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 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 15, 2:57 PM EDT, 3 hours 54 minutes earlier.
Area forecast discussion, Jul 15, 2:57 PM EDT, 3 hours 54 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 255 PM EDT SAT JUL 15 1995 REMAINS OF THE COLD FRONT EXTEND FROM CAPE COD WEST ACROSS CENTRAL PA TO NORTHERN OH AT 18Z. SATELLITE SHOWED SUPPRESSION OF THE CLOUDS ACROSS PA BEHIND THE BOUNDARY THAT ADVECTED OUT AHEAD OF THE EARLY MORNINGS CONVECTION...DESPITE THE INCREDIBLE INSTABILITY ON MORNING RAOB. THERE IS EVIDENCE THAT THE BOUNDARY MOVED SOUTH AND SOUTHWEST ACROSS THE STATE REACHING INTO OH THIS AFTERNOON. NVA QUITE EVIDENT ALOFT ACROSS WESTERN PA THIS AFTERNOON AND ALSO FAIR INDICATION OF ANTICYCLONIC TURNING IN THE CLOUD MOTION ON THE SATELLITE. THIS PROBABLY ACCOUNTS FOR THE LACK OF CONVECTION ACROSS THE AREA. THUNDERSTORMS HAVE EXPLODED OUT AHEAD OF THE UPPER SHORT WAVE THAT IS MOVING NORTHEAST FROM KENTUCKY INTO OH. THAT SAME UPPER WAVE IS PROGGED TO MOVE NORTHEAST AND SPREAD INTO WESTERN PA OVERNIGHT. BEST CHANCE FOR STRONG THUNDERSTORMS WILL BE AFT MIDNIGHT HERE IN CENTRAL PA. DOES APPEAR THAT WE/VE HIT THE PEAK OF THE HEAT WAVE AND AS THE SURFACE RIDGE BUILDS SOUTH OVERNIGHT THAT JUST A BIT LESS HEAT AND HUMIDITY WILL BE OVER MOST OF THE AREA. CONCUR WITH NEED TO KEEP THE AXDVISORY UP UNTIL THUNDERSTORMS MOVE IN TONIGHT. TED
In the hours before
Special weather statement, Jul 15, 3:26 PM EDT, 3 hours 25 minutes before
PAZ004>006-010>012-017>019-024>028-033>036-037-041-042-045-046- 049>053-056>059-063>066-160600- SPECIAL WEATHER STATEMENT - EXCESSIVE HEAT ADVISORIES/WARNINGS NATIONAL WEATHER SERVICE STATE COLLEGE PA 330 PM EDT SAT JUL 15 1995 ...EXCESSIVE HEAT ADVISORIES CONTINUE FOR MOST OF SOUTH CENTRAL PENNSYLVANIA AND THE MIDDLE AND LOWER SUSQUEHANNA VALLEY THROUGH THIS EVENING... COUNTIES AFFECTED INCLUDE... IN SOUTH CENTRAL PENNSYLVANIA... BLAIR... BEDFORD... HUNTINGDON... MIFFLIN... JUNIATA.... FULTON AND FRANKLIN. IN THE SUSQUEHANNA VALLEY REGION... SOUTHERN CLINTON... SOUTHERN LYCOMING... UNION... SNYDER... MONTOUR... NORTHUMBERLAND... COLUMBIA... PERRY... DAUPHIN... LEBANON... CUMBERLAND... ADAMS... YORK... AND LANCASTER. EXCESSIVE HEAT ADVISORIES REMAIN UP FOR MUCH OF SOUTH CENTRAL PENNSYLVANIA THIS EVENING AS THE HEAT AND HUMIDITY PEAKS TODAY. ONLY THE AREAS CLOSE TO LAKE ERIE ESCAPED 90 DEGREE TEMPERATURES BY MID AFTERNOON. WILLIAMSPORT REACHED 101 AT 3 PM WITH A HEAT INDEX OF 116. HARRISBURG WAS 98 WITH AN INDEX OF 121 AND PHILADELPHIA TOPPED ALL AREAS WITH A TEMPERATURE OF 103 AND AN INDEX OF 121. ASIDE FROM NEAR LAKE ERIE...BRADFORD IN THE NORTHERN MOUNTAINS WAS 90 WITH A HEAT INDEX OF 96. HEAT EXHAUSTION AND BODY CRAMPS CAN OCCUR WHEN THE HEAT INDEX IS AT OR ABOVE 105 DEGREES. PROLONGED EXPOSURE COULD LEAD TO HEAT STROKE. SO...TAKE IT EASY THIS EVENING...AVOID STRESSFUL ACTIVITIES... AND STAY OUT OF THE SUN AS MUCH AS POSSIBLE. DRINK PLENTY OF LIQUIDS... PREFERABLY WATER...AND AVOID HOT BEVERAGES AND ALCOHOL. THE HIGH HEAT INDEX TEMPERATURES HAVE REACHED THEIR PEAK TODAY AND WE SHOULD SEE SOME IMPROVEMENT OVERNIGHT...AND THROUGH THE DAY SUNDAY. IT WILL STILL BE VERY UNPLEASANT THROUGH THE EVENING ...BUT OVERNIGHT LOWS SHOULD FALL INTO THE LOW AND MID 70S IN THE SOUTH AND UPPER 60S IN THE NORTH. DUNHAM
Special weather statement, Jul 15, 3:30 PM EDT, 3 hours 21 minutes before
PAZ004>006-010>012-017>019-024>028-033>036-037-041-042-045-046- 049>053-056>059-063>066-160600- SPECIAL WEATHER STATEMENT - EXCESSIVE HEAT ADVISORIES/WARNINGS NATIONAL WEATHER SERVICE STATE COLLEGE PA 330 PM EDT SAT JUL 15 1995 ...EXCESSIVE HEAT ADVISORIES CONTINUE FOR MOST OF SOUTH CENTRAL PENNSYLVANIA AND THE MIDDLE AND LOWER SUSQUEHANNA VALLEY THROUGH THIS EVENING... COUNTIES AFFECTED INCLUDE... IN SOUTH CENTRAL PENNSYLVANIA... BLAIR... BEDFORD... HUNTINGDON... MIFFLIN... JUNIATA.... FULTON AND FRANKLIN. IN THE SUSQUEHANNA VALLEY REGION... SOUTHERN CLINTON... SOUTHERN LYCOMING... UNION... SNYDER... MONTOUR... NORTHUMBERLAND... COLUMBIA... PERRY... DAUPHIN... LEBANON... CUMBERLAND... ADAMS... YORK... AND LANCASTER. EXCESSIVE HEAT ADVISORIES REMAIN UP FOR MUCH OF SOUTH CENTRAL PENNSYLVANIA THIS EVENING AS THE HEAT AND HUMIDITY PEAKS TODAY. ONLY THE AREAS CLOSE TO LAKE ERIE ESCAPED 90 DEGREE TEMPERATURES BY MID AFTERNOON. WILLIAMSPORT REACHED 101 AT 3 PM WITH A HEAT INDEX OF 116. HARRISBURG WAS 98 WITH AN INDEX OF 121 AND PHILADELPHIA TOPPED ALL AREAS WITH A TEMPERATURE OF 103 AND AN INDEX OF 121. ASIDE FROM NEAR LAKE ERIE...BRADFORD IN THE NORTHERN MOUNTAINS WAS 90 WITH A HEAT INDEX OF 96. HEAT EXHAUSTION AND BODY CRAMPS CAN OCCUR WHEN THE HEAT INDEX IS AT OR ABOVE 105 DEGREES. PROLONGED EXPOSURE COULD LEAD TO HEAT STROKE. SO...TAKE IT EASY THIS EVENING...AVOID STRESSFUL ACTIVITIES... AND STAY OUT OF THE SUN AS MUCH AS POSSIBLE. DRINK PLENTY OF LIQUIDS... PREFERABLY WATER...AND AVOID HOT BEVERAGES AND ALCOHOL. THE HIGH HEAT INDEX TEMPERATURES HAVE REACHED THEIR PEAK TODAY AND WE SHOULD SEE SOME IMPROVEMENT OVERNIGHT...AND THROUGH THE DAY SUNDAY. IT WILL STILL BE VERY UNPLEASANT THROUGH THE EVENING ...BUT OVERNIGHT LOWS SHOULD FALL INTO THE LOW AND MID 70S IN THE SOUTH AND UPPER 60S IN THE NORTH. DUNHAM H `#6WWUSp XI`WWUS @,q`WWUS< - WUUS :a`WWUSh 40 WUUS $WWUSH H46WWUS l WWUS x< WUUS ; WUUS 0XWSUS `WWUS WUUS `WWUS^ &WWUS$ 7 WUUST 3U^WSUS -b6WWUS f6WWUS 7q4WSUS %x WUUS
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 4:48 AM EDT | Severe Thunderstorm Warning | CTP | Warren | 57 min |
| Jul 15, 5:33 AM EDT | Severe Thunderstorm Warning | CTP | McKean, Warren | 57 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; radar from the NEXRAD Level II archive.