Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 113, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Jul 18, 1997, 7:15 PM EDT for Cambria County, Pennsylvania. It was in force for 50 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
- Jul 18, 1997, 7:15 PM EDT (23:15 UTC)
- Expired
- Jul 18, 1997, 8:05 PM EDT
- In force
- 50 min
- Issued by
- NWS State College, PA
- Area
- Whole counties
County Cambria County, PA
The radar
The State College radar (KCCX), 76 km from the middle of the area, began a volume at 23:19 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 18, 7:19 PM EDT | Thunderstorm Wind 51 | Johnstown, PA | Trees and wires were down in Culver. |
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 |
|---|---|---|---|
| Jul 18, 4:45 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 11.3 hours before the alert went out and 118 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
- 582 J/kg
- Mixed-layer CIN
- -80 J/kg
- Mixed-layer LCL
- 1058 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- -10 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 182316 RRA SVRCTP PAC021-190005- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 715 PM EDT FRI JUL 18 1997 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 805 PM EDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN WEST CENTRAL PENNSYLVANIA ...CAMBRIA COUNTY AT 715 PM...THE NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM JUST WEST OF COLVER IN CAMBRIA COUNTY. THE STORM WILL MOVE THROUGH EBENSBURG BY 725...AND TO NEAR PORTAGE BY 735 PM. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. STAY AWAY FROM WINDOWS. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES UNTIL THE STORM HAS PASSED. DO NOT DRIVE INTO LOW WATER CROSSINGS. JUNG
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 3:02 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, McKean, Potter | 58 min |
| Jul 18, 3:30 PM EDT | Severe Thunderstorm Warning | CTP | Clinton | 65 min |
| Jul 18, 3:56 PM EDT | Severe Thunderstorm Warning | CTP | Bedford | 79 min |
| Jul 18, 4:01 PM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter | 79 min |
| Jul 18, 4:24 PM EDT | Severe Thunderstorm Warning | CTP | Cameron | 61 min |
| Jul 18, 4:32 PM EDT | Severe Thunderstorm Warning | CTP | Clinton, Lycoming | 63 min |
| Jul 18, 4:35 PM EDT | Severe Thunderstorm Warning | CTP | Cambria | 65 min |
| Jul 18, 4:44 PM EDT | Tornado Warning | CTP | Clinton | 36 min |
| Jul 18, 4:58 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Montour, Northumberland | 62 min |
| Jul 18, 4:58 PM EDT | Severe Thunderstorm Warning | CTP | Union | 62 min |
| Jul 18, 5:07 PM EDT | Tornado Warning | CTP | Union | 48 min |
| Jul 18, 5:50 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 60 min |
| Jul 18, 5:59 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clearfield | 61 min |
| Jul 18, 6:34 PM EDT | Severe Thunderstorm Warning | CTP | Mifflin | 46 min |
| Jul 18, 6:50 PM EDT | Severe Thunderstorm Warning | CTP | Juniata | 45 min |
| Jul 18, 7:04 PM EDT | Tornado Warning | CTP | Perry | 46 min |
| Jul 18, 7:31 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Dauphin | 64 min |
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; radar from the NEXRAD Level II archive.