Alert archive / Pennsylvania / Tornado Warnings in 2001
Tornado Warning 17, NWS State College, PA
NWS State College, PA issued this tornado warning at Sep 24, 2001, 6:53 PM EDT for York County, Pennsylvania. It was in force for 67 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
- Sep 24, 2001, 6:53 PM EDT (22:53 UTC)
- Expired
- Sep 24, 2001, 8:00 PM EDT
- In force
- 67 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 22:53 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 |
|---|---|---|---|
| Sep 24, 4:15 PM EDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 10.9 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
- 432 J/kg
- Mixed-layer CIN
- -35 J/kg
- Mixed-layer LCL
- 541 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 70 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.4
The text
As transmitted, in the capitals the NWS used until 2016.
336 WFUS51 KCTP 242253 TORCTP PAC133-250000- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE STATE COLLEGE PA 653 PM EDT MON SEP 24 2001 THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A * TORNADO WARNING FOR... YORK COUNTY IN PENNSYLVANIA * UNTIL 800 PM EDT. * AT 648 PM...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED A TORNADO NEAR HANOVER...MOVING NORTHEAST AT 25 MPH. SEVERAL BUILDINGS REPORTED DESTROYED IN PENN TOWNSHIP. * THE TORNADO IS EXPECTED TO BE NEAR... SPRING GROVE AT 700 PM. WEST YORK AND GRANTLEY AND SHILOH AT 715 PM. YORK AND NORTH YORK AND VALLEY VIEW AT 720 PM. EAST YORK AND EMIGSVILLE AT 725 PM. SPRINGETTS MANOR-YORKLYN AND STONYBROOK-WILSHIRE AND MANCHESTER AT 730 PM. FOR YOUR PROTECTION FROM THE DAMAGING WINDS OF A TORNADO...GO TO A BASEMENT OR A SMALL INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. $$ LAT...LON 3986 7706 3972 7691 3996 7652 4013 7671 & LA CORTE
The office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 24, 6:22 PM EDT | Severe Thunderstorm Warning | CTP | Adams, York | 53 min |
| Sep 24, 7:16 PM EDT | Flash Flood Warning | CTP | Adams, York | 3 hr |
| Sep 24, 7:36 PM EDT | Flash Flood Warning | CTP | Columbia, Dauphin, Lebanon, Lycoming, Montour, Northumberland and 4 more | 3 hr |
| Sep 24, 7:57 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 63 min |
Nearby
Tornado Warnings in Pennsylvania, 2001Every tornado warning in 2001Tornadoes in 2001
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.