Alert archive / Pennsylvania / Tornado Warnings in 2018
Tornado Warning 7, NWS State College, PA
NWS State College, PA issued this tornado warning at May 15, 2018, 4:14 PM EDT for 4 counties in Pennsylvania. It was in force for 31 min. 4 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
- May 15, 2018, 4:14 PM EDT (20:14 UTC)
- Expired
- May 15, 2018, 4:45 PM EDT
- In force
- 31 min
- Issued by
- NWS State College, PA
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
Counties Cumberland County, PA, Dauphin County, PA, Perry County, PA, York County, PA
The radar
The State College radar (KCCX), 133 km from the middle of the area, began a volume at 20:17 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 |
|---|---|---|---|
| May 15, 4:15 PM EDT | TORNADO | 2 Nnw Enola, PA | AN EF1 TORNADO KNOCKED DOWN A FEW DOZEN TREES AND DESTROYED A SHED JUST NORTH OF BELLE VISTA DRIVE TO THE NORTH-NORTHWEST OF ENOLA. THE PATH LENGTH WAS 200 YARDS AND THE MAXIMUM PATH WIDTH WAS 40 YARDS. |
| May 15, 4:17 PM EDT | TSTM WND DMG | 1 N Rockville, PA | TREES AND WIRES DOWN AT NORTH FRONT STREET AND MILLER LANE |
| May 15, 4:20 PM EDT | TSTM WND DMG | 1 Sse Rockville, PA | TREES INTO HOUSES ON GREEN STREET |
| May 15, 4:26 PM EDT | HAIL 1 | Mechanicsburg, PA |
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 |
|---|---|---|---|
| May 15, 12:26 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 8.2 hours before the alert went out and 150 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
- 47 J/kg
- Mixed-layer CIN
- -484 J/kg
- Mixed-layer LCL
- 1259 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 117 m²/s²
- 0-3 km storm-relative helicity
- 79 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
410
WFUS51 KCTP 152014
TORCTP
PAC041-043-099-133-152045-
/O.NEW.KCTP.TO.W.0007.180515T2014Z-180515T2045Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service State College PA
414 PM EDT TUE MAY 15 2018
The National Weather Service in State College PA has issued a
* Tornado Warning for...
North central York County in south central Pennsylvania...
Southern Dauphin County in south central Pennsylvania...
East central Perry County in south central Pennsylvania...
Northeastern Cumberland County in south central Pennsylvania...
* Until 445 PM EDT
* At 414 PM EDT, severe thunderstorms capable of producing both
tornadoes and extensive straight line wind damage were located
west of Enola, moving east at 40 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.
* These dangerous storms will be near...
New Cumberland, Harrisburg, Steelton, Progress and Penbrook around
420 PM EDT.
Hummelstown, Middletown, Colonial Park, Linglestown, Rutherford,
Lawnton, Bressler-Enhaut-Oberlin, Highspire, Paxtang and Paxtonia
around 430 PM EDT.
Hershey and Palmyra around 440 PM EDT.
Other locations impacted by this tornadic thunderstorm include Three
Mile Island, Goldsboro, Capital City Airport, Newberrytown, City
Island, Penn State Harrisburg, Harrisburg International Airport,
Hershey Park, Harrisburg Area Community College and Penn State
College Of Medicine.
This includes the following Interstates...
The Pennsylvania Turnpike from mile markers 229 to 258.
Interstate 81 from mile markers 54 to 78.
Interstate 83 from mile markers 32 to 50.
Interstate 283 from mile markers 0 to 2.
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.
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 4021 7712 4036 7701 4037 7664 4020 7657
4019 7659 4019 7661 4017 7664 4017 7666
4015 7668 4015 7670 4012 7672 4011 7672
TIME...MOT...LOC 2014Z 274DEG 37KT 4027 7697
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
Dangelo1 follow-up statement
260
WWUS51 KCTP 152034
SVSCTP
Severe Weather Statement
National Weather Service State College PA
434 PM EDT TUE MAY 15 2018
PAC041-099-152042-
/O.CAN.KCTP.TO.W.0007.000000T0000Z-180515T2045Z/
Perry PA-Cumberland PA-
434 PM EDT TUE MAY 15 2018
...THE TORNADO WARNING FOR EAST CENTRAL PERRY AND NORTHEASTERN
CUMBERLAND COUNTIES IS CANCELLED...
The tornadic part of the thunderstorms which prompted the warning
has moved to the east. Therefore, the warning for Perry and
Cumberland Counties has been cancelled.
A severe thunderstorm watch remains in effect until 800 PM EDT for
south central Pennsylvania.
LAT...LON 4016 7692 4017 7691 4018 7692 4032 7662
4020 7657 4019 7661 4017 7664 4017 7666
4015 7668 4015 7670 4012 7672 4011 7672
TIME...MOT...LOC 2032Z 283DEG 37KT 4020 7673
$$
PAC043-133-152045-
/O.CON.KCTP.TO.W.0007.000000T0000Z-180515T2045Z/
York PA-Dauphin PA-
434 PM EDT TUE MAY 15 2018
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM EDT FOR NORTH
CENTRAL YORK AND SOUTHEASTERN DAUPHIN COUNTIES...
At 432 PM EDT, a severe squall line capable of producing both
tornadoes and extensive straight line wind damage was located
near Middletown, moving east at 40 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 tornadic thunderstorm will remain over mainly rural areas of
north central York and southeastern Dauphin Counties, including the
following locations: Three Mile Island, Goldsboro, Newberrytown, Penn
State Harrisburg, Harrisburg International Airport, Hershey Park,
Penn State College Of Medicine, York Haven and Capital City Airport.
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.
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 4016 7692 4017 7691 4018 7692 4032 7662
4020 7657 4019 7661 4017 7664 4017 7666
4015 7668 4015 7670 4012 7672 4011 7672
TIME...MOT...LOC 2032Z 283DEG 37KT 4020 7673
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
DangeloThe office that day
Everything else NWS State College, PA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 15, 3:47 AM EDT | Flash Flood Watch | CTP | Adams, Bedford, Cumberland, Dauphin, Franklin, Fulton and 5 more | 15 hr |
| May 15, 8:16 AM EDT | Special Weather Statement | CTP | Tioga | 44 min |
| May 15, 11:38 AM EDT | Special Weather Statement | CTP | Elk, McKean | 52 min |
| May 15, 12:00 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clearfield, Elk, McKean | 75 min |
| May 15, 12:43 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clinton, Elk, Potter | 47 min |
| May 15, 12:46 PM EDT | Tornado Warning | CTP | Cameron, Clinton, Elk, Potter | 44 min |
| May 15, 12:58 PM EDT | Severe Thunderstorm Warning | CTP | Cambria, Cameron, Clearfield, Clinton, Elk | 57 min |
| May 15, 1:03 PM EDT | Special Weather Statement | CTP | Tioga | 42 min |
| May 15, 1:14 PM EDT | Severe Thunderstorm Warning | CTP | Tioga | 61 min |
| May 15, 1:25 PM EDT | Tornado Warning | CTP | Clinton, Lycoming, Potter, Tioga | 65 min |
| May 15, 1:34 PM EDT | Special Weather Statement | CTP | Cambria | 41 min |
| May 15, 1:42 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clearfield, Clinton, Lycoming | 63 min |
| May 15, 1:59 PM EDT | Special Weather Statement | CTP | Blair | 46 min |
| May 15, 2:04 PM EDT | Tornado Warning | CTP | Sullivan | 41 min |
| May 15, 2:11 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Centre, Huntingdon | 49 min |
| May 15, 2:16 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Columbia, Huntingdon, Juniata, Lycoming and 6 more | 74 min |
| May 15, 2:34 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Huntingdon, Juniata, Mifflin, Perry | 56 min |
| May 15, 2:45 PM EDT | Tornado Warning | CTP | Montour, Northumberland, Snyder, Union | 24 min |
| May 15, 2:48 PM EDT | Tornado Warning | CTP | Columbia, Montour, Northumberland | 42 min |
| May 15, 2:51 PM EDT | Special Weather Statement | CTP | Huntingdon | 24 min |
| May 15, 3:14 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Dauphin, Juniata, Northumberland, Perry, Schuylkill and 1 more | 46 min |
| May 15, 3:23 PM EDT | Special Weather Statement | CTP | Fulton | 37 min |
| May 15, 3:34 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Franklin, Perry | 41 min |
| May 15, 3:45 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Dauphin, Franklin, Fulton, Lancaster, Lebanon and 3 more | 60 min |
| May 15, 4:31 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, York | 59 min |
| May 15, 4:41 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Lancaster, Lebanon, York | 53 min |
| May 15, 5:07 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Lancaster, York | 83 min |
| May 15, 6:02 PM EDT | Areal Flood Advisory | CTP | Lancaster, York | 118 min |
Nearby
Tornado Warnings in Pennsylvania, 2018Every tornado warning in 2018Tornadoes in 2018
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.