Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 69, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Jun 4, 2002, 5:34 PM EDT for Clearfield County, Pennsylvania. It was in force for 56 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 4, 2002, 5:34 PM EDT (21:34 UTC)
- Expired
- Jun 4, 2002, 6:30 PM EDT
- In force
- 56 min
- Issued by
- NWS State College, PA
- Area
- Whole counties
County Clearfield County, PA
The radar
The State College radar (KCCX), 40 km from the middle of the area, began a volume at 21:35 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 |
|---|---|---|---|
| Jun 4, 5:40 PM EDT | Thunderstorm Wind 50 E | Chester Hill, PA | Trees were reported down in Chester Hill. |
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 nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 9.6 hours before the alert went out and 152 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
- 693 J/kg
- Mixed-layer CIN
- -128 J/kg
- Mixed-layer LCL
- 798 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 192 m²/s²
- 0-3 km storm-relative helicity
- 179 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS51 KCTP 042134 SVRCTP PAC033-042230- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 534 PM EDT TUE JUN 4 2002 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CLEARFIELD COUNTY IN PENNSYLVANIA * UNTIL 630 PM EDT. * AT 534 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER HYDE...OR 5 MILES WEST OF CLEARFIELD... MOVING EAST AT 35 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... WOODLAND AT 540 PM. LECONTES MILLS AT 550 PM. KARTHAUS AT 600 PM. REMEMBER...SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCED WARNING. $$
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 4, 3:27 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 63 min |
| Jun 4, 4:04 PM EDT | Severe Thunderstorm Warning | CTP | McKean | 56 min |
| Jun 4, 4:31 PM EDT | Severe Thunderstorm Warning | CTP | Elk | 59 min |
| Jun 4, 5:44 PM EDT | Severe Thunderstorm Warning | CTP | McKean | 61 min |
| Jun 4, 6:22 PM EDT | Tornado Warning | CTP | Clearfield | 23 min |
| Jun 4, 6:44 PM EDT | Severe Thunderstorm Warning | CTP | Clearfield | 46 min |
| Jun 4, 7:04 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 56 min |
| Jun 4, 7:50 PM EDT | Severe Thunderstorm Warning | CTP | Huntingdon, Mifflin | 55 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2002Every severe thunderstorm warning in 2002
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.