Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 99, NWS State College, PA
NWS State College, PA issued this severe thunderstorm warning at Jun 27, 2002, 6:28 PM EDT for York County, Pennsylvania. It was in force for 62 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 27, 2002, 6:28 PM EDT (22:28 UTC)
- Expired
- Jun 27, 2002, 7:30 PM EDT
- In force
- 62 min
- Issued by
- NWS State College, PA
- Area
- Whole counties
County York County, PA
The radar
The Sterling radar (KLWX), 124 km from the middle of the area, began a volume at 22:32 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 27, 5:45 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 10.5 hours before the alert went out and 73 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
- 287 J/kg
- Mixed-layer CIN
- -83 J/kg
- Mixed-layer LCL
- 1213 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS51 KCTP 272228 SVRCTP PAC133-272330- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 627 PM EDT THU JUN 27 2002 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... YORK COUNTY IN PENNSYLVANIA * UNTIL 730 PM EDT. * AT 627 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 7 MILES SOUTH OF DILLSBURG...OR 14 MILES WEST OF WEIGELSTOWN...MOVING EAST AT 15 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... DILLSBURG AT 635 PM. SIDDONSBURG AT 650 PM. DOVER AT 655 PM. WEIGELSTOWN AT 700 PM. EMIGSVILLE AT 715 PM. VALLEY GREEN AT 720 PM. THIS STORM HAS ALREADY DOWNED TREES IN PARTS OF ADAMS COUNTY. THIS IS A DANGEROUS STORM...MOVE TO A SUBSTANTIAL SHELTER NOW $$ &
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 27, 12:00 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clearfield | 60 min |
| Jun 27, 2:42 PM EDT | Flash Flood Warning | CTP | Clearfield | 3 hr |
| Jun 27, 3:27 PM EDT | Severe Thunderstorm Warning | CTP | Centre | 63 min |
| Jun 27, 4:06 PM EDT | Severe Thunderstorm Warning | CTP | Potter | 54 min |
| Jun 27, 4:12 PM EDT | Severe Thunderstorm Warning | CTP | Snyder, Union | 63 min |
| Jun 27, 5:34 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Franklin | 56 min |
| Jun 27, 5:40 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon | 65 min |
| Jun 27, 6:26 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland | 19 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.