Alert archive / Pennsylvania / Tornado Warnings in 1998
Tornado Warning 9, NWS State College, PA
NWS State College, PA issued this tornado warning at May 31, 1998, 7:53 PM EDT for Cameron County, Pennsylvania. It was in force for 62 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
- May 31, 1998, 7:53 PM EDT (23:53 UTC)
- Expired
- May 31, 1998, 8:55 PM EDT
- In force
- 62 min
- Issued by
- NWS State College, PA
- Area
- Whole counties
County Cameron County, PA
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 31, 8:10 PM EDT | Tornado F1 | Sinnamahoning, PA | An F1 tornado touched down just south of Sinnemahoning near Wykoff Run Road. The storm moved southeast along Sinnemahoning Creek and Route 120 crossing into Clinton County, before ending along Montour Road. Trees were blown over or tops were damaged along the |
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 |
|---|---|---|---|
| May 31, 3:30 PM EDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 11.9 hours before the alert went out and 196 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
- 1035 J/kg
- Mixed-layer CIN
- -145 J/kg
- Mixed-layer LCL
- 1038 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 198 m²/s²
- 0-3 km storm-relative helicity
- 281 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 4.7
The text
As transmitted, in the capitals the NWS used until 2016.
476 WFUS01 KCTP 312351 RRA TORCTP PAC023-010055- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 753 PM EDT SUN MAY 31 1998 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE HAS ISSUED A * TORNADO WARNING FOR... CAMERON COUNTY IN NORTHWESTERN PENNSYLVANIA * UNTIL 855 PM EDT * AT 750 PM EDT... STATE COLLEGE DOPPLER RADAR INDICATED A TORNADO 15 MILES WEST OF EMPORIUM OR 5 MILES SOUTHWEST OF BEECHWOOD MOVING EAST AT 55 MPH. * THE TORNADO IS EXPECTED TO BE NEAR... EMPORIUM BY 800 PM EDT DRIFTWOOD BY 805 PM EDT STEVENSON DAM BY 810 PM EDT A TORNADO IS ON THE GROUND GO TO THE BASEMENT IF A BASEMENT IS NOT AVAILABLE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR SEVERAL SIGHTINGS OF FUNNELS AND TORNADOES HAVE BEEN REPORTED WITH THIS STORM. LA CORTE
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 12:50 PM EDT | Tornado Warning | CTP | Warren | 60 min |
| May 31, 1:24 PM EDT | Severe Thunderstorm Warning | CTP | McKean | 61 min |
| May 31, 3:29 PM EDT | Severe Thunderstorm Warning | CTP | Cameron | 46 min |
| May 31, 3:58 PM EDT | Severe Thunderstorm Warning | CTP | Potter | 32 min |
| May 31, 4:25 PM EDT | Severe Thunderstorm Warning | CTP | Lycoming, Sullivan | 65 min |
| May 31, 5:12 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 48 min |
| May 31, 5:22 PM EDT | Tornado Warning | CTP | Lycoming | 33 min |
| May 31, 5:35 PM EDT | Tornado Warning | CTP | Columbia, Sullivan | 50 min |
| May 31, 6:26 PM EDT | Tornado Warning | CTP | McKean | 34 min |
| May 31, 6:44 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 61 min |
| May 31, 6:50 PM EDT | Severe Thunderstorm Warning | CTP | Potter | 65 min |
| May 31, 7:07 PM EDT | Severe Thunderstorm Warning | CTP | Elk, McKean | 63 min |
| May 31, 7:20 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 65 min |
| May 31, 7:20 PM EDT | Severe Thunderstorm Warning | CTP | Cameron | 65 min |
| May 31, 7:28 PM EDT | Tornado Warning | CTP | Elk | 62 min |
| May 31, 7:35 PM EDT | Tornado Warning | CTP | Tioga | 50 min |
| May 31, 7:56 PM EDT | Severe Thunderstorm Warning | CTP | Potter | 64 min |
Nearby
Tornado Warnings in Pennsylvania, 1998Every tornado warning in 1998Tornadoes in 1998
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.