Alert archive / Pennsylvania / Tornado Warnings in 2018

Tornado Warning 16, NWS State College, PA

October 2, 2018Columbia County, Lycoming County, Montour County, Pennsylvania

NWS State College, PA issued this tornado warning at Oct 2, 2018, 4:26 PM EDT for Columbia County, Lycoming County, Montour County, Pennsylvania. It was in force for 49 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, 4:26 PM EDT (20:26 UTC)
Expired
Oct 2, 2018, 5:15 PM EDT
In force
49 min
Issued by
NWS State College, PA
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Columbia County, PA, Lycoming County, PA, Montour County, PA

The radar

The Binghamton radar (KBGM), 122 km from the middle of the area, began a volume at 20:27 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 8.4 hours before the alert went out and 259 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, Washington/Dulle, VA at 12:00Z on 2018-10-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 78 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 2018-10-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 square meters per square second.1939Sfc1 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
78 J/kg
Mixed-layer CIN
-139 J/kg
Mixed-layer LCL
909 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
78 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

700 
WFUS51 KCTP 022026
TORCTP
PAC037-081-093-022115-
/O.NEW.KCTP.TO.W.0016.181002T2026Z-181002T2115Z/

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

The National Weather Service in State College PA has issued a

* Tornado Warning for...
  Southeastern Lycoming County in north central Pennsylvania...
  North central Montour County in central Pennsylvania...
  Northern Columbia County in central Pennsylvania...

* Until 515 PM EDT.

* At 425 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Exchange, moving east at 15 mph.

  HAZARD...Tornado and quarter size hail.

  SOURCE...Weather spotters reported funnel cloud.

  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...
  Lairdsville around 440 PM EDT.
  Iola around 450 PM EDT.
  Rohrsburg and Waller around 510 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Benton, Stillwater and Millville.

This includes State Road 118 near Lairdsvile.

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 4113 7672 4117 7672 4121 7671 4124 7661
      4124 7632 4120 7632 4114 7628 4113 7626
      4114 7624 4113 7623 4107 7623
TIME...MOT...LOC 2025Z 267DEG 15KT 4117 7666 

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

$$

Lambert
2 follow-up statements
913 
WWUS51 KCTP 022052
SVSCTP

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

PAC081-093-022100-
/O.CAN.KCTP.TO.W.0016.000000T0000Z-181002T2115Z/
Lycoming PA-Montour PA-
452 PM EDT TUE OCT 2 2018

...THE TORNADO WARNING FOR SOUTHEASTERN LYCOMING AND NORTH CENTRAL
MONTOUR COUNTIES IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

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

LAT...LON 4111 7649 4115 7655 4119 7656 4124 7649
      4124 7632 4120 7632 4114 7628 4113 7626
      4114 7624 4113 7623 4107 7623
TIME...MOT...LOC 2050Z 267DEG 15KT 4118 7652 

$$

PAC037-022115-
/O.CON.KCTP.TO.W.0016.000000T0000Z-181002T2115Z/
Columbia PA-
452 PM EDT TUE OCT 2 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM EDT FOR NORTHERN
COLUMBIA COUNTY...
    
At 450 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Iola, moving east at 15 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 storm will be near...
  Rohrsburg and Waller around 510 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Benton, Stillwater and Millville.

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 4111 7649 4115 7655 4119 7656 4124 7649
      4124 7632 4120 7632 4114 7628 4113 7626
      4114 7624 4113 7623 4107 7623
TIME...MOT...LOC 2050Z 267DEG 15KT 4118 7652 

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

$$

RXR
393 
WWUS51 KCTP 022106
SVSCTP

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

PAC037-022115-
/O.CON.KCTP.TO.W.0016.000000T0000Z-181002T2115Z/
Columbia PA-
506 PM EDT TUE OCT 2 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM EDT FOR
NORTHEASTERN COLUMBIA COUNTY...
    
At 506 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Rohrsburg, moving east at 20 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
northeastern Columbia County, including the following locations...
Benton and Stillwater.

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 4109 7637 4112 7639 4116 7642 4122 7638
      4124 7632 4120 7632 4114 7628 4113 7626
      4114 7624 4113 7623 4107 7623
TIME...MOT...LOC 2106Z 267DEG 16KT 4115 7635 

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

$$

La Corte

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, 4:42 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, 5:39 PM EDTTornado WarningCTPLycoming, Sullivan66 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.