Alert archive / Pennsylvania / Tornado Warnings in 2017
Tornado Warning 13, NWS State College, PA
NWS State College, PA issued this tornado warning at Aug 12, 2017, 3:35 PM EDT for Dauphin County, Lebanon County, Pennsylvania. It was in force for 55 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
- Aug 12, 2017, 3:35 PM EDT (19:35 UTC)
- Expired
- Aug 12, 2017, 4:30 PM EDT
- In force
- 55 min
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
Counties Dauphin County, PA, Lebanon County, PA
The radar
The State College radar (KCCX), 110 km from the middle of the area, began a volume at 19:39 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 |
|---|---|---|---|
| Aug 12, 2:44 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 7.6 hours before the alert went out and 185 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
- 248 J/kg
- Mixed-layer CIN
- -78 J/kg
- Mixed-layer LCL
- 772 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 78 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
354
WFUS51 KCTP 121935
TORCTP
PAC043-075-122030-
/O.NEW.KCTP.TO.W.0013.170812T1935Z-170812T2030Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service State College PA
335 PM EDT SAT AUG 12 2017
The National Weather Service in State College PA has issued a
* Tornado Warning for...
Northern Dauphin County in south central Pennsylvania...
Northwestern Lebanon County in south central Pennsylvania...
* Until 430 PM EDT
* At 334 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Millersburg, moving east at 30 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation. This storm has a history of
causing wind damage.
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...
Millersburg around 340 PM EDT.
Elizabethville around 400 PM EDT.
Lykens and Dehart Dam around 410 PM EDT.
Williamstown and Fort Indiantown Gap around 420 PM EDT.
Other locations impacted by this tornadic thunderstorm include
Enders, Ono, Wiconisco, Berrysburg, Gratz and Jonestown.
This includes the following Interstates...
Interstate 78 from mile markers 0 to 6.
Interstate 81 from mile markers 84 to 96.
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 4034 7641 4051 7698 4054 7698 4057 7699
4059 7696 4062 7696 4063 7695 4060 7692
4062 7687 4063 7686 4063 7684 4059 7659
4048 7641
TIME...MOT...LOC 1934Z 281DEG 24KT 4057 7701
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
La Corte1 follow-up statement
788
WWUS51 KCTP 122010
SVSCTP
Severe Weather Statement
National Weather Service State College PA
410 PM EDT SAT AUG 12 2017
PAC043-075-122030-
/O.CON.KCTP.TO.W.0013.000000T0000Z-170812T2030Z/
Dauphin PA-Lebanon PA-
410 PM EDT SAT AUG 12 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 430 PM EDT FOR
NORTHEASTERN DAUPHIN AND NORTHWESTERN LEBANON COUNTIES...
At 410 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Elizabethville, moving east at 20 mph.
HAZARD...Tornado and quarter size hail. This storm has a history of
causing wind damage.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Fort Indiantown Gap, Harper Tavern and Lickdale around 430 PM EDT.
Other locations impacted by this tornadic thunderstorm include Ono,
Wiconisco, Gratz and Jonestown.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4047 7684 4061 7674 4048 7641 4034 7641
TIME...MOT...LOC 2010Z 289DEG 18KT 4051 7677
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
La CorteThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 8:02 PM EDT | Special Weather Statement | CTP | Juniata, Perry | 28 min |
| Aug 11, 8:06 PM EDT | Special Weather Statement | CTP | Huntingdon | 24 min |
| Aug 11, 8:33 PM EDT | Special Weather Statement | CTP | Perry | 42 min |
| Aug 11, 8:46 PM EDT | Severe Thunderstorm Warning | CTP | Perry | 59 min |
| Aug 11, 9:33 PM EDT | Areal Flood Advisory | CTP | Dauphin, Juniata, Perry | 3 hr |
| Aug 11, 10:52 PM EDT | Areal Flood Advisory | CTP | Lebanon, Schuylkill | 3 hr |
| Aug 12, 12:37 AM EDT | Areal Flood Advisory | CTP | Cumberland, Dauphin, Perry | 3 hr |
| Aug 12, 4:00 AM EDT | River Flood Warning | CTP | Lebanon, Schuylkill | 21 hr |
| Aug 12, 4:07 AM EDT | River Flood Warning | CTP | Dauphin, Lebanon | 13 hr |
| Aug 12, 1:15 PM EDT | Special Weather Statement | CTP | Centre | 45 min |
| Aug 12, 1:17 PM EDT | Flash Flood Watch | CTP | Cumberland, Dauphin, Lebanon, Perry | 5 hr |
| Aug 12, 1:30 PM EDT | Special Weather Statement | CTP | Huntingdon | 30 min |
| Aug 12, 1:52 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Huntingdon, Juniata, Mifflin, Snyder | 68 min |
| Aug 12, 2:23 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Mifflin, Perry | 67 min |
| Aug 12, 3:03 PM EDT | Tornado Warning | CTP | Juniata, Perry | 57 min |
| Aug 12, 3:24 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Juniata, Northumberland, Perry, Snyder | 81 min |
| Aug 12, 3:48 PM EDT | Severe Thunderstorm Warning | CTP | Franklin | 72 min |
| Aug 12, 3:59 PM EDT | Areal Flood Advisory | CTP | Cumberland, Dauphin, York | 3 hr |
| Aug 12, 4:15 PM EDT | Severe Thunderstorm Warning | CTP | Lebanon | 60 min |
| Aug 12, 4:24 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster, York | 102 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.