Alert archive / Pennsylvania / Tornado Warnings in 2001

Tornado Warning 4, NWS State College, PA

June 22, 2001Lancaster County, Pennsylvania

NWS State College, PA issued this tornado warning at Jun 22, 2001, 5:57 PM EDT for Lancaster County, Pennsylvania. It was in force for 33 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 22, 2001, 5:57 PM EDT (21:57 UTC)
Expired: Jun 22, 2001, 6:30 PM EDT
In force: 33 min
Issued by: NWS State College, PA
Area: Whole counties

County Lancaster County, PA

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 22, 2:00 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 10.0 hours before the alert went out and 65 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 578 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 563 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 61 m²/s²
0-3 km storm-relative helicity: 78 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

762 
WFUS51 KCTP 222158
TORCTP
PAC071-222230-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
557 PM EDT FRI JUN 22 2001

THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS CONTINUED A

* TORNADO WARNING FOR...
  LANCASTER COUNTY IN PENNSYLVANIA

* UNTIL 630 PM EDT.

* AT 552 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A     
  SEVERE THUNDERSTORM WITH A POSSIBLE TORNADO NEAR GAP. 

* THE TORNADO WILL REMAIN OVER MAINLY RURAL AREAS OF...
  EASTERN LANCASTER COUNTY.

FOR YOUR PROTECTION FROM THE DAMAGING...GO TO A BASEMENT OR A SMALL
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.

$$

LAT...LON 4001 7616 3987 7602 4000 7576 4018 7593

The office that day

Everything else NWS State College, PA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 21, 8:12 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	63 min
Jun 21, 10:16 PM EDT	Flash Flood Warning	CTP	Franklin	3 hr
Jun 21, 10:32 PM EDT	Severe Thunderstorm Warning	CTP	Elk	58 min
Jun 21, 10:34 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield	71 min
Jun 21, 10:44 PM EDT	Flash Flood Warning	CTP	Clearfield	4 hr
Jun 21, 10:47 PM EDT	Severe Thunderstorm Warning	CTP	McKean	58 min
Jun 21, 10:52 PM EDT	Flash Flood Warning	CTP	Warren	113 min
Jun 21, 11:25 PM EDT	Severe Thunderstorm Warning	CTP	Cameron	65 min
Jun 22, 1:09 AM EDT	Flash Flood Warning	CTP	Franklin	66 min
Jun 22, 2:36 AM EDT	Flash Flood Warning	CTP	Northumberland	114 min
Jun 22, 3:09 AM EDT	Severe Thunderstorm Warning	CTP	Columbia, Montour	36 min
Jun 22, 11:30 AM EDT	Severe Thunderstorm Warning	CTP	York	60 min
Jun 22, 1:42 PM EDT	Flash Flood Warning	CTP	York	3 hr
Jun 22, 4:05 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	25 min
Jun 22, 4:30 PM EDT	Flash Flood Warning	CTP	Dauphin, York	3 hr
Jun 22, 4:41 PM EDT	Severe Thunderstorm Warning	CTP	York	49 min
Jun 22, 5:18 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	27 min
Jun 22, 5:23 PM EDT	Tornado Warning	CTP	Lancaster	37 min
Jun 22, 5:41 PM EDT	Severe Thunderstorm Warning	CTP	Huntingdon	64 min
Jun 22, 6:11 PM EDT	Flash Flood Warning	CTP	Lancaster	3 hr
Jun 22, 7:30 PM EDT	Flash Flood Warning	CTP	York	6 hr

Nearby

Tornado Warnings in Pennsylvania, 2001 Every tornado warning in 2001 Tornadoes 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.