Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 27, NWS State College, PA

June 13, 2021Lycoming County, Union County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Jun 13, 2021, 4:22 PM EDT for Lycoming County, Union County, Pennsylvania. It was in force for 83 min. 2 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: Jun 13, 2021, 4:22 PM EDT (20:22 UTC)
Expired: Jun 13, 2021, 5:45 PM EDT
In force: 83 min
Issued by: NWS State College, PA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Lycoming County, PA, Union County, PA

The radar

The State College radar (KCCX), 76 km from the middle of the area, began a volume at 20:26 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
Jun 13, 4:40 PM EDT	TSTM WND DMG	1 Sw Waterville, PA	TREES DOWN ON WIRES IN WATERVILLE.
Jun 13, 5:25 PM EDT	TSTM WND DMG	2 N Avis, PA	TREES DOWN ACROSS MALLARD LANE.

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
Jun 13, 3:26 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 8.4 hours before the alert went out and 228 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2252 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: -7 m²/s²
0-3 km storm-relative helicity: 32 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

335 
WUUS51 KCTP 132022
SVRCTP
PAC081-119-132145-
/O.NEW.KCTP.SV.W.0027.210613T2022Z-210613T2145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service State College PA
422 PM EDT Sun Jun 13 2021

The National Weather Service in State College PA has issued a

* Severe Thunderstorm Warning for...
  Southwestern Lycoming County in north central Pennsylvania...
  North central Union County in central Pennsylvania...

* Until 545 PM EDT.

* At 421 PM EDT, a severe thunderstorm was located over Little Pine
  State Park, moving southeast at 20 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Williamsport, Montoursville, Jersey Shore, Duboistown, Elimsport,
  Waterville, Cogan Station, Collomsville, Little Pine State Park,
  South Williamsport, Garden View, Oval, Salladasburg, Williamsport
  Airport and Little League World Series Complex.

For those driving on Interstate 80, this includes areas between the
Mile Run and Lewisburg-Williamsport exits, specifically from mile
markers 199 to 203.

This includes Interstate 180 from mile markers 20 to 29.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4128 7688 4108 7696 4105 7714 4107 7714
      4108 7718 4119 7729 4120 7729 4122 7733
      4136 7741 4141 7740 4141 7727
TIME...MOT...LOC 2021Z 315DEG 15KT 4134 7733 

HAIL...1.00IN
WIND...60MPH
 
$$

Colbert

1 follow-up statement

454 
WWUS51 KCTP 132116
SVSCTP

Severe Weather Statement
National Weather Service State College PA
516 PM EDT Sun Jun 13 2021

PAC081-119-132145-
/O.CON.KCTP.SV.W.0027.000000T0000Z-210613T2145Z/
Lycoming PA-Union PA-
516 PM EDT Sun Jun 13 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT
FOR SOUTHWESTERN LYCOMING AND NORTH CENTRAL UNION COUNTIES...

At 516 PM EDT, a severe thunderstorm was located over Jersey Shore,
moving southeast at 15 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Jersey Shore, Collomsville, Elimsport, Oval and Salladasburg. 

For those driving on Interstate 80, this includes areas between the
Mile Run and Lewisburg-Williamsport exits, specifically from mile
markers 199 to 203.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4125 7735 4129 7724 4115 7697 4114 7694
      4108 7696 4105 7714 4107 7714 4108 7718
      4119 7729 4120 7729 4122 7733
TIME...MOT...LOC 2116Z 329DEG 12KT 4120 7726 

HAIL...1.00IN
WIND...60MPH
 
$$

Colbert

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 13, 8:56 AM EDT	Special Weather Statement	CTP	Somerset	49 min
Jun 13, 9:08 AM EDT	Severe Thunderstorm Warning	CTP	Cambria, Somerset	67 min
Jun 13, 9:48 AM EDT	Special Weather Statement	CTP	Bedford	57 min
Jun 13, 10:04 AM EDT	Areal Flood Advisory	CTP	Bedford, Cambria, Somerset	116 min
Jun 13, 10:26 AM EDT	Special Weather Statement	CTP	Fulton	49 min
Jun 13, 3:37 PM EDT	Special Weather Statement	CTP	Lycoming	38 min
Jun 13, 3:45 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Tioga	45 min
Jun 13, 4:14 PM EDT	Special Weather Statement	CTP	Lycoming	46 min
Jun 13, 4:55 PM EDT	Special Weather Statement	CTP	Cameron	20 min
Jun 13, 5:07 PM EDT	Special Weather Statement	CTP	Union	23 min
Jun 13, 5:11 PM EDT	Special Weather Statement	CTP	Elk	19 min
Jun 13, 5:16 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	55 min
Jun 13, 5:19 PM EDT	Special Weather Statement	CTP	Cameron	26 min
Jun 13, 5:57 PM EDT	Special Weather Statement	CTP	Union	18 min
Jun 13, 6:07 PM EDT	Special Weather Statement	CTP	Cameron	23 min
Jun 13, 6:30 PM EDT	Special Weather Statement	CTP	Clinton	15 min
Jun 13, 6:34 PM EDT	Special Weather Statement	CTP	Potter	26 min
Jun 13, 6:39 PM EDT	Special Weather Statement	CTP	Forest	21 min
Jun 13, 6:45 PM EDT	Special Weather Statement	CTP	Clinton	15 min
Jun 13, 6:51 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton	54 min
Jun 13, 6:54 PM EDT	Special Weather Statement	CTP	Centre	36 min
Jun 13, 6:58 PM EDT	Severe Thunderstorm Warning	CTP	McKean, Warren	32 min
Jun 13, 7:22 PM EDT	Special Weather Statement	CTP	Tioga	23 min
Jun 13, 7:23 PM EDT	Special Weather Statement	CTP	Centre	37 min
Jun 13, 7:26 PM EDT	Severe Thunderstorm Warning	CTP	McKean	49 min
Jun 13, 7:34 PM EDT	Areal Flood Advisory	CTP	Potter	86 min
Jun 13, 7:46 PM EDT	Special Weather Statement	CTP	Centre	29 min
Jun 13, 7:53 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Centre, Huntingdon	43 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2021 Every severe thunderstorm warning in 2021

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.