Alert archive / Pennsylvania / Tornado Warnings in 2011
Tornado Warning 18, NWS State College, PA
NWS State College, PA issued this tornado warning at May 23, 2011, 4:13 PM EDT for Huntingdon County, Juniata County, Mifflin County, Pennsylvania. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- May 23, 2011, 4:13 PM EDT (20:13 UTC)
- Expired
- May 23, 2011, 4:45 PM EDT
- In force
- 32 min
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
Counties Huntingdon County, PA, Juniata County, PA, Mifflin County, PA
The radar
The State College radar (KCCX), 38 km from the middle of the area, began a volume at 20:13 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 |
|---|---|---|---|
| May 23, 10:48 AM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 8.2 hours before the alert went out and 190 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 530 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- -35 m²/s²
- 0-3 km storm-relative helicity
- 11 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
554
WFUS51 KCTP 232013
TORCTP
PAC061-067-087-232045-
/O.NEW.KCTP.TO.W.0018.110523T2013Z-110523T2045Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE STATE COLLEGE PA
413 PM EDT MON MAY 23 2011
THE NATIONAL WEATHER SERVICE IN STATE COLLEGE PA HAS ISSUED A
* TORNADO WARNING FOR...
NORTHEASTERN HUNTINGDON COUNTY IN CENTRAL PENNSYLVANIA...
CENTRAL JUNIATA COUNTY IN CENTRAL PENNSYLVANIA...
MIFFLIN COUNTY IN CENTRAL PENNSYLVANIA...
* UNTIL 445 PM EDT
* AT 408 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THE STORM
CONTAINING THE POSSIBLE TORNADO WAS NEAR ALLENSVILLE...MOVING EAST
AT 35 MPH.
* THE TORNADO WILL BE NEAR...
BELLEVILLE AROUND 420 PM EDT...
STRODES MILLS AROUND 425 PM EDT...
YEAGERTOWN AND BURNHAM AROUND 435 PM EDT...
MILROY AND WALNUT AROUND 440 PM EDT...
ALFARATA AND REEDS GAP STATE PARK AROUND 445 PM EDT...
WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
HEAVY RAINFALL MAY OBSCURE THIS TORNADO. IF YOU WAIT TO SEE OR HEAR
IT COMING...IT MAY BE TOO LATE TO GET TO A SAFE PLACE.
TAKE COVER INSIDE NOW. DO NOT WAIT TO SEE OR HEAR THE TORNADO. MOVE
TO AN INTERIOR ROOM ON THE LOWEST LEVEL OF A STURDY BUILDING. PUT AS
MANY WALLS BETWEEN YOU AND THE OUTSIDE AS YOU CAN. AVOID WINDOWS.
PROTECT YOURSELF FROM FLYING DEBRIS.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 600 PM EDT MONDAY
EVENING FOR SOUTH CENTRAL PENNSYLVANIA.
&&
LAT...LON 4063 7797 4073 7772 4072 7771 4075 7765
4075 7762 4083 7741 4052 7729 4044 7794
TIME...MOT...LOC 2013Z 248DEG 30KT 4058 7781
$$
FORECASTER: KFThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 23, 3:22 PM EDT | Special Weather Statement | CTP | Blair, Huntingdon | 23 min |
| May 23, 3:48 PM EDT | Special Weather Statement | CTP | Centre, Clinton, Mifflin | 27 min |
| May 23, 4:09 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Huntingdon, Juniata, Mifflin, Snyder, Union | 66 min |
| May 23, 4:18 PM EDT | Special Weather Statement | CTP | Centre, Clinton, Lycoming | 57 min |
| May 23, 4:31 PM EDT | Special Weather Statement | CTP | Franklin | 29 min |
| May 23, 4:53 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Columbia, Lycoming, Montour, Northumberland and 3 more | 52 min |
| May 23, 5:00 PM EDT | Special Weather Statement | CTP | Lancaster | 30 min |
| May 23, 5:05 PM EDT | Special Weather Statement | CTP | Cumberland | 25 min |
| May 23, 5:06 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Juniata, Northumberland, Perry, Schuylkill, Snyder | 54 min |
| May 23, 5:15 PM EDT | Tornado Warning | CTP | Juniata, Northumberland, Snyder | 30 min |
| May 23, 5:34 PM EDT | Special Weather Statement | CTP | York | 26 min |
| May 23, 5:38 PM EDT | Special Weather Statement | CTP | Dauphin | 22 min |
| May 23, 5:49 PM EDT | Tornado Warning | CTP | Dauphin, Northumberland, Schuylkill | 41 min |
| May 23, 5:51 PM EDT | Special Weather Statement | CTP | Columbia, Montour, Northumberland | 24 min |
| May 23, 6:02 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Montour, Northumberland, Schuylkill, Sullivan | 58 min |
| May 23, 6:08 PM EDT | Special Weather Statement | CTP | Lancaster | 37 min |
| May 23, 6:15 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Northumberland, Schuylkill, Snyder | 60 min |
| May 23, 6:16 PM EDT | Special Weather Statement | CTP | Lancaster | 44 min |
| May 23, 6:27 PM EDT | Severe Thunderstorm Warning | CTP | Lancaster, York | 34 min |
| May 23, 6:32 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 48 min |
| May 23, 7:28 PM EDT | Special Weather Statement | CTP | Schuylkill | 32 min |
Nearby
Tornado Warnings in Pennsylvania, 2011Every tornado warning in 2011Tornadoes in 2011
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.