Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 58, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Jun 18, 1997, 5:01 PM EDT for Bedford County, Fulton County, Pennsylvania. It was in force for 59 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jun 18, 1997, 5:01 PM EDT (21:01 UTC)
- Expired
- Jun 18, 1997, 6:00 PM EDT
- In force
- 59 min
- Issued by
- NWS State College, PA
- Area
- Whole counties
Counties Bedford County, PA, Fulton County, PA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 18, 5:05 PM EDT | Hail 0.75 | Bedford, PA | Dime to nickel size hail fell just north of Bedford. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 18, 2:30 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 9.0 hours before the alert went out and 137 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
- 392 J/kg
- Mixed-layer CIN
- -95 J/kg
- Mixed-layer LCL
- 671 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 156 m²/s²
- 0-3 km storm-relative helicity
- 219 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.4
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 Jun 18, 1:28 PM EDT, 3 hours 33 minutes earlier.
Area forecast discussion, Jun 18, 1:28 PM EDT, 3 hours 33 minutes before
CENTRAL PENNSYLVANIA FORECAST DISCUSSION NATIONAL WEATHER SERVICE STATE COLLEGE PA 120 PM EDT WED JUN 18 1997 ...DISCUSSION... WON'T SPEND A LOT OF TIME HERE AS DEVELOPING CONVECTION NEEDS MOST ATTENTION THIS AFTERNOON. CLOUD COVER BREAKING UP RAPIDLY IN WARM SECTOR WITH MESO ANALYSIS AND DIAGNOSTICS SHOWING RAPIDLY DESTABILIZING AIRMASS. MESO DATA FROM PSU SHOWS STRONG MOISTURE CONVERGENCE OVER LAUREL HIGHLANDS WHERE TEMPERATURES ARE CLIMBING QUICKLY. DEWPOINTS IN MID TO UPPER 60S SHOULD PROVIDE PLENTY OF FUEL AS INCREASING DYNAMICS SWING ACROSS REGION LATER TODAY AND THIS EVENING. BOUNDARY EXTENDS ACROSS CTRL PA ASSOC WITH WEAK BACK-DOOR COOL FRONT WHICH SETTLED SOUTH ACROSS REGION LAST 24HRS. LOW LEVEL HELICITY VALUES ABOUT THIS FEATURE ARE APPROACHING THE MILDLY IMPRESSIVE RANGE WITH BRN'S OFF THE MASSAGED 12Z SOUNDING SUPPORTIVE OF SUPERCEL DEVELOPMENT. LOW LEVEL JET IN THE RANGE OF 30KTS OR SO IS ALREADY EVIDENT ON PIT/CTP VWP'S. UPPER LEVEL JET STREAK PROGGED TO APPROACH REGION DURING THE AFTERNOON AND EVENING. LOWER BRANCH OF AGEOSTROPHIC TRANSVERSE CIRCULATION IN THE JET EXIT WILL PROVIDE ADDITIONAL SLY COMPONENT TO LOW LEVEL FLOW WHICH WILL ONLY HELP SUPPORT THIS FEATURE. BOTTOM LINE IS THAT IT LOOKS LIKE A BUSY DAY SETTING UP FOR REGIONAL OFFICES. AGREE IN WINDING DOWN ACTIVITY OVERNIGHT WITH FOG LIKELY IN SOME LOCATIONS. AM STILL LEERY ABOUT THU. DEWPOINTS DON'T DROP ALL THAT MUCH DURING THE DAY AND MODELS SHOW WEAK SECONDARY UPPER SHORTWAVE SLIDING ACROSS DURG THE AFTERNOON. WE ARE APPROACHING THE TIME OF YEAR WHERE THUNDER POTENTIAL NEEDS TO BE ASSESSED ALMOST DAILY. NEW ETA TAKES AREA OF 30+ K INDICES JUST SOUTH OF THE BORDER DURG MAX HEATING. LA CORTE
In the hours before
Special weather statement, Jun 18, 11:06 AM EDT, 5 hours 55 minutes before
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046- 049>053-056>059-063>066-182300- SPECIAL WEATHER STATEMENT - SEVERE WEATHER OUTLOOK FOR CENTRAL PA NATIONAL WEATHER SERVICE STATE COLLEGE PA 11 AM EDT WED JUN 18 1997 ...A SLIGHT RISK OF SEVERE THUNDERSTORMS... THE STORM PREDICTION CENTER SAYS THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS CENTRAL PENNSYLVANIA TODAY. SEVERE THUNDERSTORMS ARE MOST LIKELY LATER THIS AFTERNOON AND EVENING AS A COLD FRONT APPROACHES THE REGION. THE BEST CHANCE OF SEVERE WEATHER WILL EAST OF A LINE FROM WELLSBORO TO STATE COLLEGE TO BEDFORD. IN ADDITION...VERY HEAVY RAIN WILL BE POSSIBLE FROM SOME STORMS. SKYWARN ACTIVATION MAY BE N8EEDED LATER TODAY. LA CORTE
Special weather statement, Jun 18, 2:33 PM EDT, 2 hours 28 minutes before
PAZ034-025-024-011-018-019-017-012-045-010-035-026-028-041-046- 005-027-006-033-037-004-190030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 233 PM EDT WED JUN 18 1997 ...SEVERE THUNDERSTORM WATCH... THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR MUCH OF WESTERN PENNSYLVANIA. THE WATCH IS VALID UNTIL 8PM THIS EVENING AND INCLUDES THE FOLLOWING COUNTIES: WARREN... MCKEAN... ELK... CAMERON.. POTTER... TIOGA... CLINTON... CLEARFIELD ...CLEARFIELD... LYCOMING... CAMBRIA... BLAIR... SOMERSET ... HUNTINGDON... FULTON... JUNIATA... MIFFLIN AND BEDFORD. A COLD FRONT WILL CONTINUE MOVING ACROSS CENTRAL PENNSYLVANIA THIS AFTERNOON AND THIS EVENING. WARM HUMID AIR IN PLACE OVER THE REGION WILL CREATE CONDITIONS RIPE FOR LOCALLY SEVERE THUNDERSTORMS. THUNDERSTORMS WILL INCREASE IN COVERAGE AND INTENSITY AS THE AFETRNOON PROGRESSES. SOME OF THESE STORMS WILL CONTAIN LARGE HAIL AND STRONG DAMAGING WINDS. LA CORTE
Special weather statement, Jun 18, 2:33 PM EDT, 2 hours 28 minutes before
PAZ034-025-024-011-018-019-017-012-045-010-035-026-028-041-046- 005-027-006-033-037-004-190030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 233 PM EDT WED JUN 18 1997 ...SEVERE THUNDERSTORM WATCH... THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR MUCH OF WESTERN PENNSYLVANIA. THE WATCH IS VALID UNTIL 8PM THIS EVENING AND INCLUDES THE FOLLOWING COUNTIES: WARREN... MCKEAN... ELK... CAMERON.. POTTER... TIOGA... CLINTON... CLEARFIELD ...CLEARFIELD... LYCOMING... CAMBRIA... BLAIR... SOMERSET ... HUNTINGDON... FULTON... JUNIATA... MIFFLIN AND BEDFORD. A COLD FRONT WILL CONTINUE MOVING ACROSS CENTRAL PENNSYLVANIA THIS AFTERNOON AND THIS EVENING. WARM HUMID AIR IN PLACE OVER THE REGION WILL CREATE CONDITIONS RIPE FOR LOCALLY SEVERE THUNDERSTORMS. THUNDERSTORMS WILL INCREASE IN COVERAGE AND INTENSITY AS THE AFETRNOON PROGRESSES. SOME OF THESE STORMS WILL CONTAIN LARGE HAIL AND STRONG DAMAGING WINDS. LA CORTE
Special weather statement, Jun 18, 2:33 PM EDT, 2 hours 28 minutes before
PAZ034-025-024-011-018-019-017-012-045-010-035-026-028-041-046- 005-027-006-033-037-004-190030- SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE STATE COLLEGE PA 233 PM EDT WED JUN 18 1997 ...SEVERE THUNDERSTORM WATCH... THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR MUCH OF WESTERN PENNSYLVANIA. THE WATCH IS VALID UNTIL 8PM THIS EVENING AND INCLUDES THE FOLLOWING COUNTIES: WARREN... MCKEAN... ELK... CAMERON.. POTTER... TIOGA... CLINTON... CLEARFIELD... CENTRE... LYCOMING... CAMBRIA... BLAIR... SOMERSET ... HUNTINGDON... FULTON... JUNIATA... MIFFLIN AND BEDFORD. A COLD FRONT WILL CONTINUE MOVING ACROSS CENTRAL PENNSYLVANIA THIS AFTERNOON AND THIS EVENING. WARM HUMID AIR IN PLACE OVER THE REGION WILL CREATE CONDITIONS RIPE FOR LOCALLY SEVERE THUNDERSTORMS. THUNDERSTORMS WILL INCREASE IN COVERAGE AND INTENSITY AS THE AFTERNOON PROGRESSES. SOME OF THESE STORMS WILL CONTAIN LARGE HAIL AND STRONG DAMAGING WINDS. ...CORRECTED TO ADD CENTRE COUNTY TO WATCH... LA CORTE
Special weather statement, Jun 18, 2:41 PM EDT, 2 hours 20 minutes before
PAZ034-025-024-011-018-019-017-012-045-010-035-026-028-041-046- 005-027-006-033-037-004-190030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE STATE COLLEGE PA 233 PM EDT WED JUN 18 1997 ...SEVERE THUNDERSTORM WATCH... THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR MUCH OF WESTERN PENNSYLVANIA. THE WATCH IS VALID UNTIL 8PM THIS EVENING AND INCLUDES THE FOLLOWING COUNTIES: WARREN... MCKEAN... ELK... CAMERON.. POTTER... TIOGA... CLINTON... CLEARFIELD ... LYCOMING... CAMBRIA... BLAIR... SOMERSET ... HUNTINGDON... FULTON... JUNIATA... MIFFLIN AND BEDFORD. A COLD FRONT WILL CONTINUE MOVING ACROSS CENTRAL PENNSYLVANIA THIS AFTERNOON AND THIS EVENING. WARM HUMID AIR IN PLACE OVER THE REGION WILL CREATE CONDITIONS RIPE FOR LOCALLY SEVERE THUNDERSTORMS. THUNDERSTORMS WILL INCREASE IN COVERAGE AND INTENSITY AS THE AFTERNOON PROGRESSES. SOME OF THESE STORMS WILL CONTAIN LARGE HAIL AND STRONG DAMAGING WINDS. LA CORTE
Special weather statement, Jun 18, 3:07 PM EDT, 1 hour 54 minutes before
PAZ034-025-024-011-018-019-017-012-045-010-035-026-028-041-046- 005-027-006-033-037-004-190030- SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE STATE COLLEGE PA 233 PM EDT WED JUN 18 1997 ...SEVERE THUNDERSTORM WATCH... THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR MUCH OF WESTERN PENNSYLVANIA. THE WATCH IS VALID UNTIL 8PM THIS EVENING AND INCLUDES THE FOLLOWING COUNTIES: WARREN... MCKEAN... ELK... CAMERON.. POTTER... TIOGA... CLINTON... CLEARFIELD... CENTRE... LYCOMING... CAMBRIA... BLAIR... SOMERSET ... HUNTINGDON... FULTON... JUNIATA... MIFFLIN AND BEDFORD. A COLD FRONT WILL CONTINUE MOVING ACROSS CENTRAL PENNSYLVANIA THIS AFTERNOON AND THIS EVENING. WARM HUMID AIR IN PLACE OVER THE REGION WILL CREATE CONDITIONS RIPE FOR LOCALLY SEVERE THUNDERSTORMS. THUNDERSTORMS WILL INCREASE IN COVERAGE AND INTENSITY AS THE AFTERNOON PROGRESSES. SOME OF THESE STORMS WILL CONTAIN LARGE HAIL ANDL STRONG DAMAGING WINDS. ...CORRECTED TO ADD CENTRE COUNTY TO WATCH... LA CORTE
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 2:07 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield, Elk | 68 min |
| Jun 18, 2:40 PM EDT | Severe Thunderstorm Warning | CTP | Cameron | 65 min |
| Jun 18, 3:07 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton | 68 min |
| Jun 18, 3:27 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 48 min |
| Jun 18, 3:58 PM EDT | Severe Thunderstorm Warning | CTP | Bedford | 62 min |
| Jun 18, 4:21 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 69 min |
| Jun 18, 5:09 PM EDT | Flash Flood Warning | CTP | Centre, Clearfield | 3 hr |
| Jun 18, 5:14 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter | 61 min |
| Jun 18, 5:38 PM EDT | Tornado Warning | CTP | Franklin | 67 min |
| Jun 18, 5:48 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Huntingdon | 57 min |
| Jun 18, 6:18 PM EDT | Tornado Warning | CTP | Juniata | 42 min |
| Jun 18, 7:24 PM EDT | Severe Thunderstorm Warning | CTP | Adams | 51 min |
| Jun 18, 7:41 PM EDT | Flash Flood Warning | CTP | Franklin | 3 hr |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 1997Every severe thunderstorm 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.