Alert archive / Pennsylvania / Tornado Warnings in 2017
Tornado Warning 1, NWS State College, PA
NWS State College, PA issued this tornado warning at Feb 25, 2017, 2:20 PM EST for Lancaster County, York County, Pennsylvania. It was in force for 25 min. 9 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Feb 25, 2017, 2:20 PM EST (19:20 UTC)
- Expired
- Feb 25, 2017, 2:45 PM EST
- In force
- 25 min
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Lancaster County, PA, York County, PA
The radar
The Sterling radar (KLWX), 142 km from the middle of the area, began a volume at 19:20 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 |
|---|---|---|---|
| Feb 25, 2:22 PM EST | HAIL 1 | 1 Ne East York, PA | QUARTER-SIZED HAIL IN SPRINGETTSBURY TWP. |
| Feb 25, 2:27 PM EST | TSTM WND DMG | 2 E Hallam, PA | BARN ROOF BLOWN OFF |
| Feb 25, 2:33 PM EST | FUNNEL CLOUD | 2 N Columbia, PA | FUNNEL CLOUDS SPOTTED NORTH OF COLUMBIA. |
| Feb 25, 2:33 PM EST | HAIL 0.75 | 2 N Columbia, PA | PENNY-SIZED HAIL NEAR COLUMBIA. |
| Feb 25, 2:36 PM EST | HAIL 1 | 1 Ne East York, PA | QUARTER-SIZED HAIL IN SPRINGETTSBURY TWP. |
| Feb 25, 2:38 PM EST | HAIL 0.75 | Donegal Springs, PA | PENNY-SIZED HAIL NEAR DONGEAL SPRINGS. |
| Feb 25, 2:38 PM EST | HAIL 1 | Maytown, PA | QUARTER-SIZED HAIL NEAR MAYTOWN. |
| Feb 25, 2:42 PM EST | HAIL 1 | Mount Joy, PA | QUARTER-SIZED HAIL NEAR MOUNT JOY. |
| Feb 25, 2:44 PM EST | HAIL 1 | Mastersonville, PA | QUARTER-SIZED HAIL IN MASTERSONVILLE. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Feb 25, 1:30 PM EST | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 7.3 hours before the alert went out and 141 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
- 235 J/kg
- Mixed-layer CIN
- -194 J/kg
- Mixed-layer LCL
- 676 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 164 m²/s²
- 0-3 km storm-relative helicity
- 143 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
339
WFUS51 KCTP 251920
TORCTP
PAC071-133-251945-
/O.NEW.KCTP.TO.W.0001.170225T1920Z-170225T1945Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service State College PA
220 PM EST SAT FEB 25 2017
The National Weather Service in State College PA has issued a
* Tornado Warning for...
Northwestern Lancaster County in south central Pennsylvania...
Central York County in south central Pennsylvania...
* Until 245 PM EST
* At 220 PM EST, a severe thunderstorm capable of producing a tornado
was located over East York, moving northeast at 30 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* This dangerous storm will be near...
Valley View around 230 PM EST.
Columbia, Mount Joy, Maytown, Wrightsville, Marietta, Rheems,
Salunga-Landisville and Mountville around 240 PM EST.
Other locations impacted by this tornadic thunderstorm include
Washington Boro, East Prospect, Franklin And Marshall College,
Elizabethtown College, York College Of Pennsylvania, Penn State York
and Lancaster Airport.
This includes the following Interstates...
The Pennsylvania Turnpike from mile markers 265 to 268.
Interstate 83 from mile markers 12 to 24.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3997 7682 4020 7655 4024 7642 4007 7625
3988 7670
TIME...MOT...LOC 1920Z 228DEG 28KT 3996 7667
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
KFThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 25, 8:43 AM EST | Special Weather Statement | CTP | Clearfield | 47 min |
| Feb 25, 9:26 AM EST | Special Weather Statement | CTP | Potter | 34 min |
| Feb 25, 10:48 AM EST | Special Weather Statement | CTP | Franklin | 27 min |
| Feb 25, 12:00 PM EST | Special Weather Statement | CTP | Northumberland | 15 min |
| Feb 25, 12:16 PM EST | Special Weather Statement | CTP | Columbia | 29 min |
| Feb 25, 1:02 PM EST | Special Weather Statement | CTP | Schuylkill | 28 min |
| Feb 25, 1:29 PM EST | Special Weather Statement | CTP | Columbia | 31 min |
| Feb 25, 1:31 PM EST | Special Weather Statement | CTP | Franklin | 14 min |
| Feb 25, 1:49 PM EST | Special Weather Statement | CTP | Lebanon | 26 min |
| Feb 25, 1:55 PM EST | Special Weather Statement | CTP | Cumberland | 20 min |
| Feb 25, 1:57 PM EST | Special Weather Statement | CTP | York | 33 min |
| Feb 25, 2:05 PM EST | Severe Thunderstorm Warning | CTP | Lancaster, York | 40 min |
| Feb 25, 2:13 PM EST | Special Weather Statement | CTP | Adams, Cumberland, Perry | 32 min |
| Feb 25, 2:23 PM EST | Special Weather Statement | CTP | Lebanon | 22 min |
| Feb 25, 2:32 PM EST | Severe Thunderstorm Warning | CTP | Lebanon, Schuylkill | 88 min |
| Feb 25, 2:37 PM EST | Severe Thunderstorm Warning | CTP | Adams, York | 68 min |
| Feb 25, 2:43 PM EST | Tornado Warning | CTP | Lancaster, Lebanon | 47 min |
| Feb 25, 3:04 PM EST | Special Weather Statement | CTP | Dauphin | 26 min |
| Feb 25, 3:08 PM EST | Severe Thunderstorm Warning | CTP | Lancaster | 67 min |
| Feb 25, 3:15 PM EST | Special Weather Statement | CTP | Schuylkill | 15 min |
| Feb 25, 4:00 PM EST | Special Weather Statement | CTP | Carbon | 15 min |
Nearby
Tornado Warnings in Pennsylvania, 2017Every tornado warning in 2017Tornadoes in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.