Alert archive / Pennsylvania / Tornado Warnings in 2018

Tornado Warning 22, NWS State College, PA

October 2, 2018Lycoming County, Sullivan County, Pennsylvania

NWS State College, PA issued this tornado warning at Oct 2, 2018, 5:39 PM EDT for Lycoming County, Sullivan County, Pennsylvania. It was in force for 66 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
Oct 2, 2018, 5:39 PM EDT (21:39 UTC)
Expired
Oct 2, 2018, 6:45 PM EDT
In force
66 min
Issued by
NWS State College, PA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.5 in

Counties Lycoming County, PA, Sullivan County, PA

The radar

The Binghamton radar (KBGM), 102 km from the middle of the area, began a volume at 21:40 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.

IssuedProductOfficeLasted
Oct 2, 2:55 PM EDTTornado WatchSPC8 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 9.7 hours before the alert went out and 232 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.

Skew-T log-pSkew-T log-p diagram, Buffalo Intl Airport, NY at 12:00Z on 2018-10-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 13 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Buffalo Intl Airport, NY at 12:00Z on 2018-10-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 205 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
13 J/kg
Mixed-layer CIN
-93 J/kg
Mixed-layer LCL
476 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
205 m²/s²
0-3 km storm-relative helicity
232 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

403 
WFUS51 KCTP 022139
TORCTP
PAC081-113-022245-
/O.NEW.KCTP.TO.W.0022.181002T2139Z-181002T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service State College PA
539 PM EDT TUE OCT 2 2018

The National Weather Service in State College PA has issued a

* Tornado Warning for...
  Northeastern Lycoming County in north central Pennsylvania...
  Sullivan County in north central Pennsylvania...

* Until 645 PM EDT.
    
* At 538 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Ralston, moving east at 30 mph.

  HAZARD...Tornado and ping pong ball 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...
  Barbours around 550 PM EDT.
  Kettle Creek Gorge and Lincoln Falls around 600 PM EDT.
  Muncy Valley around 620 PM EDT.
  Biggertown around 630 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Laporte, Eagles Mere, Forksville, Hillsgrove and Picture Rocks.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This Tornado Warning replaces the Severe Thunderstorm Warning issued
for the same area.

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!

&&

LAT...LON 4145 7625 4119 7655 4141 7712 4147 7697
      4155 7701 4155 7696 4156 7695 4149 7624
TIME...MOT...LOC 2138Z 291DEG 25KT 4148 7689 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

Dangelo
2 follow-up statements
283 
WWUS51 KCTP 022218
SVSCTP

Severe Weather Statement
National Weather Service State College PA
618 PM EDT TUE OCT 2 2018

PAC081-113-022245-
/O.CON.KCTP.TO.W.0022.000000T0000Z-181002T2245Z/
Lycoming PA-Sullivan PA-
618 PM EDT TUE OCT 2 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM EDT FOR
NORTHEASTERN LYCOMING AND SULLIVAN COUNTIES...
    
At 614 PM EDT, a severe thunderstorm capable of producing a tornado 
was located near Muncy Valley. Another storm just to the northwest 
of that, near Hillsgrove, can also produce a tornado and gusty 
winds. Both storms are moving east at 30 mph.

HAZARD...Tornado and ping pong ball 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.

Locations impacted include...
Ralston, Kettle Creek Gorge, Biggertown, Muncy Valley, Lincoln Falls,
Barbours, Lairdsville, Picture Rocks, Laporte, Forksville, Eagles
Mere and Hillsgrove.

This includes the following highways...
 Route 220 from Glen Mawr to north of Laporte.
 State Road 14 near Ralston.
 State Road 118 near Biggertown.

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!

&&

LAT...LON 4145 7625 4119 7655 4147 7697 4156 7695
      4149 7624
TIME...MOT...LOC 2214Z 291DEG 25KT 4139 7657 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

Dangelo
043 
WWUS51 KCTP 022227
SVSCTP

Severe Weather Statement
National Weather Service State College PA
627 PM EDT TUE OCT 2 2018

PAC081-022235-
/O.CAN.KCTP.TO.W.0022.000000T0000Z-181002T2245Z/
Lycoming PA-
627 PM EDT TUE OCT 2 2018

...THE TORNADO WARNING FOR NORTHEASTERN LYCOMING COUNTY IS
CANCELLED...
    
The tornadic thunderstorms which prompted the warning have moved out 
of the warned area. Therefore, the warning has been cancelled for 
Lycoming County.

A Tornado Watch remains in effect until 1100 PM EDT for north central
Pennsylvania.

LAT...LON 4145 7625 4128 7645 4131 7660 4141 7675
      4154 7680 4149 7624
TIME...MOT...LOC 2225Z 291DEG 25KT 4136 7647 

$$

PAC113-022245-
/O.CON.KCTP.TO.W.0022.000000T0000Z-181002T2245Z/
Sullivan PA-
627 PM EDT TUE OCT 2 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM EDT FOR SULLIVAN
COUNTY...
    
At 625 PM EDT, a severe thunderstorm capable of producing a tornado 
was located near Muncy Valley. A second storm is located over 
northern Sullivan County near Forksville. Both storms are moving 
east at 30 mph. These storms are both capable of producing a 
tornado, but are also weakening slightly. 

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.

Locations impacted include...
Kettle Creek Gorge, Muncy Valley, Lincoln Falls, Laporte, Forksville,
Eagles Mere and Hillsgrove.

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!

&&

LAT...LON 4145 7625 4128 7645 4131 7660 4141 7675
      4154 7680 4149 7624
TIME...MOT...LOC 2225Z 291DEG 25KT 4136 7647 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Dangelo

The office that day

Everything else NWS State College, PA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 2, 11:07 AM EDTSpecial Weather StatementCTPMcKean38 min
Oct 2, 1:12 PM EDTFlash Flood WatchCTPCentre, Clearfield, Clinton, Columbia, Lycoming, McKean and 7 more9 hr
Oct 2, 1:20 PM EDTAreal Flood AdvisoryCTPPotter3 hr
Oct 2, 1:59 PM EDTSpecial Weather StatementCTPTioga61 min
Oct 2, 2:48 PM EDTSpecial Weather StatementCTPTioga42 min
Oct 2, 3:03 PM EDTSevere Thunderstorm WarningCTPTioga42 min
Oct 2, 3:11 PM EDTSevere Thunderstorm WarningCTPWarren79 min
Oct 2, 3:24 PM EDTSevere Thunderstorm WarningCTPPotter, Tioga96 min
Oct 2, 3:27 PM EDTSpecial Weather StatementCTPLycoming33 min
Oct 2, 3:38 PM EDTTornado WarningCTPWarren67 min
Oct 2, 3:48 PM EDTSevere Thunderstorm WarningCTPColumbia, Lycoming, Montour, Northumberland, Sullivan57 min
Oct 2, 3:51 PM EDTTornado WarningCTPColumbia, Lycoming, Montour, Northumberland54 min
Oct 2, 3:59 PM EDTAreal Flood AdvisoryCTPPotter, Tioga3 hr
Oct 2, 4:05 PM EDTSpecial Weather StatementCTPMcKean55 min
Oct 2, 4:06 PM EDTAreal Flood AdvisoryCTPWarren3 hr
Oct 2, 4:15 PM EDTTornado WarningCTPPotter, Tioga45 min
Oct 2, 4:19 PM EDTSevere Thunderstorm WarningCTPFranklin, Huntingdon56 min
Oct 2, 4:26 PM EDTSevere Thunderstorm WarningCTPCameron, Clearfield, Elk64 min
Oct 2, 4:26 PM EDTSevere Thunderstorm WarningCTPElk49 min
Oct 2, 4:26 PM EDTTornado WarningCTPColumbia, Lycoming, Montour49 min
Oct 2, 4:42 PM EDTTornado WarningCTPClearfield63 min
Oct 2, 4:48 PM EDTTornado Warning Tornado observedCTPLycoming, Tioga42 min
Oct 2, 4:49 PM EDTSpecial Weather StatementCTPSullivan26 min
Oct 2, 4:54 PM EDTSpecial Weather StatementCTPTioga36 min
Oct 2, 5:02 PM EDTTornado WarningCTPClearfield, Elk43 min
Oct 2, 5:17 PM EDTSevere Thunderstorm WarningCTPCumberland58 min
Oct 2, 5:24 PM EDTSevere Thunderstorm WarningCTPLycoming, Tioga36 min
Oct 2, 5:27 PM EDTSevere Thunderstorm WarningCTPCameron, Centre, Clearfield, Clinton, Elk, Potter93 min
Oct 2, 5:28 PM EDTSevere Thunderstorm WarningCTPLycoming, Sullivan34 min
Oct 2, 5:32 PM EDTTornado WarningCTPClearfield58 min
Oct 2, 5:33 PM EDTTornado WarningCTPLycoming, Tioga42 min
Oct 2, 5:56 PM EDTAreal Flood AdvisoryCTPLycoming, Tioga3 hr
Oct 2, 6:06 PM EDTSevere Thunderstorm WarningCTPSomerset32 min
Oct 2, 6:19 PM EDTAreal Flood AdvisoryCTPClearfield, Elk3 hr
Oct 2, 6:25 PM EDTAreal Flood AdvisoryCTPLycoming, Sullivan3 hr
Oct 2, 6:37 PM EDTSevere Thunderstorm WarningCTPCentre, Clinton, Union53 min
Oct 2, 6:39 PM EDTSevere Thunderstorm WarningCTPColumbia, Sullivan21 min
Oct 2, 7:00 PM EDTSevere Thunderstorm WarningCTPCentre, Clearfield90 min
Oct 2, 7:13 PM EDTAreal Flood AdvisoryCTPCameron, Centre, Clinton3 hr
Oct 2, 7:44 PM EDTSpecial Weather StatementCTPNorthumberland31 min
Oct 2, 7:53 PM EDTFlash Flood WarningCTPColumbia, Lycoming, Sullivan3 hr
Oct 2, 7:57 PM EDTSpecial Weather StatementCTPSnyder33 min
Oct 2, 7:59 PM EDTFlash Flood WarningCTPCentre, Clearfield3 hr

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.