Alert archive / Pennsylvania / Tornado Warnings in 2017
Tornado Warning 16, NWS State College, PA
NWS State College, PA issued this tornado warning at Sep 5, 2017, 4:07 PM EDT for Adams County, York County, Pennsylvania. It was in force for 38 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
- Sep 5, 2017, 4:07 PM EDT (20:07 UTC)
- Expired
- Sep 5, 2017, 4:45 PM EDT
- In force
- 38 min
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Adams County, PA, York County, PA
The radar
The Sterling radar (KLWX), 119 km from the middle of the area, began a volume at 20:07 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 5, 3:26 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 8.1 hours before the alert went out and 120 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
- 4 J/kg
- Mixed-layer CIN
- -324 J/kg
- Mixed-layer LCL
- 1529 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 79 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
908
WFUS51 KCTP 052007
TORCTP
PAC001-133-052045-
/O.NEW.KCTP.TO.W.0016.170905T2007Z-170905T2045Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service State College PA
407 PM EDT TUE SEP 5 2017
The National Weather Service in State College PA has issued a
* Tornado Warning for...
Northeastern Adams County in south central Pennsylvania...
Northwestern York County in south central Pennsylvania...
* Until 445 PM EDT
* At 407 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Aspers, moving east 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...
Hampton around 420 PM EDT.
Lake Meade, Dillsburg and East Berlin around 430 PM EDT.
Weigelstown and Dover around 440 PM EDT.
Other locations impacted by this tornadic thunderstorm include
Heidlersburg, Biglerville, Franklintown, Idaville, York Springs,
Gardners, Bendersville, Wellsville and Ski Roundtop Ski Area.
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 4000 7732 4003 7725 4003 7719 4006 7715
4014 7692 3993 7683 3991 7727
TIME...MOT...LOC 2007Z 252DEG 27KT 3997 7723
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
Lambert/Watson1 follow-up statement
826
WWUS51 KCTP 052025
SVSCTP
Severe Weather Statement
National Weather Service State College PA
425 PM EDT TUE SEP 5 2017
PAC001-133-052045-
/O.CON.KCTP.TO.W.0016.000000T0000Z-170905T2045Z/
Adams PA-York PA-
425 PM EDT TUE SEP 5 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM EDT FOR
NORTHEASTERN ADAMS AND NORTHWESTERN YORK COUNTIES...
At 424 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Lake Meade, moving east at 35 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
This dangerous storm will be near...
Weigelstown and Dover around 440 PM EDT.
Other locations impacted by this tornadic thunderstorm include York
Springs, Wellsville, Franklintown and Ski Roundtop Ski Area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3997 7711 3999 7713 4002 7713 4007 7712
4014 7692 3993 7683 3994 7705
TIME...MOT...LOC 2024Z 252DEG 32KT 4001 7705
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
LambertThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 4, 10:54 PM EDT | Special Weather Statement | CTP | Warren | 66 min |
| Sep 4, 11:07 PM EDT | Severe Thunderstorm Warning | CTP | Warren | 68 min |
| Sep 4, 11:56 PM EDT | Severe Thunderstorm Warning | CTP | McKean | 64 min |
| Sep 5, 12:11 AM EDT | Severe Thunderstorm Warning | CTP | Warren | 73 min |
| Sep 5, 1:03 AM EDT | Special Weather Statement | CTP | McKean | 27 min |
| Sep 5, 1:22 AM EDT | Special Weather Statement | CTP | Potter | 23 min |
| Sep 5, 2:23 AM EDT | Special Weather Statement | CTP | Cameron | 22 min |
| Sep 5, 2:33 AM EDT | Special Weather Statement | CTP | Clearfield | 27 min |
| Sep 5, 3:02 AM EDT | Special Weather Statement | CTP | Clearfield | 43 min |
| Sep 5, 2:52 PM EDT | Special Weather Statement | CTP | Cumberland, Franklin, Fulton, Juniata, Perry | 38 min |
| Sep 5, 3:02 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Franklin, Fulton | 58 min |
| Sep 5, 3:37 PM EDT | Special Weather Statement | CTP | Cumberland, Dauphin | 53 min |
| Sep 5, 3:51 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, York | 84 min |
| Sep 5, 4:05 PM EDT | Areal Flood Advisory | CTP | Cumberland | 3 hr |
| Sep 5, 4:35 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Dauphin, Lancaster, Lebanon, York | 85 min |
| Sep 5, 4:42 PM EDT | Special Weather Statement | CTP | Schuylkill | 63 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.