Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 35, NWS State College, PA

June 14, 2021Cumberland County, Perry County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Jun 14, 2021, 12:37 AM EDT for Cumberland County, Perry 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: Jun 14, 2021, 12:37 AM EDT (04:37 UTC)
Expired: Jun 14, 2021, 1:15 AM EDT
In force: 38 min
Issued by: NWS State College, PA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Cumberland County, PA, Perry County, PA

The radar

The State College radar (KCCX), 97 km from the middle of the area, began a volume at 04:41 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 nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 4.6 hours before the alert went out and 145 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: 298 J/kg
Mixed-layer CIN: -64 J/kg
Mixed-layer LCL: 1012 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 75 m²/s²
0-3 km storm-relative helicity: 77 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

As transmitted.

410 
WUUS51 KCTP 140437
SVRCTP
PAC041-099-140515-
/O.NEW.KCTP.SV.W.0035.210614T0437Z-210614T0515Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service State College PA
1237 AM EDT Mon Jun 14 2021

The National Weather Service in State College PA has issued a

* Severe Thunderstorm Warning for...
  Cumberland County in south central Pennsylvania...
  Southern Perry County in south central Pennsylvania...

* Until 115 AM EDT.

* At 1237 AM EDT, severe thunderstorms were located along a line
  extending from Loysville to Colonel Denning State Park to 7 miles
  east of Big Spring State Park, moving southeast at 20 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Severe thunderstorms will be near...
  Loysville around 1240 AM EDT.
  Bloserville around 1250 AM EDT.
  Newville, Plainfield and Shermansdale around 100 AM EDT.
  Carlisle, Mechanicsburg, Carlisle Springs, Schlusser, New 
  Kingstown, Wertzville, Mount Holly Springs, Boiling Springs, 
  Walnut Bottom and Hogestown around 110 AM EDT.

Other locations impacted by these severe thunderstorms include
Landisburg and Penn State Dickinson School Of Law.

This includes the following Interstates...
 The Pennsylvania Turnpike from mile markers 207 to 233.
 Interstate 81 from mile markers 31 to 61.

This includes Route 11 from east of Shippensburg to west of Camp
Hill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4029 7696 4010 7710 4001 7740 4029 7759
      4033 7748 4045 7737
TIME...MOT...LOC 0437Z 309DEG 19KT 4038 7733 4030 7742 4026 7752 

HAIL...<.75IN
WIND...60MPH
 
$$

Dangelo

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 13, 8:10 PM EDT	Severe Thunderstorm Warning	CTP	McKean	35 min
Jun 13, 8:15 PM EDT	Special Weather Statement	CTP	Centre	45 min
Jun 13, 8:30 PM EDT	Special Weather Statement	CTP	Huntingdon	30 min
Jun 13, 8:41 PM EDT	Severe Thunderstorm Warning	CTP	McKean, Potter	64 min
Jun 13, 9:02 PM EDT	Special Weather Statement	CTP	Huntingdon	43 min
Jun 13, 9:08 PM EDT	Areal Flood Advisory	CTP	McKean	67 min
Jun 13, 9:38 PM EDT	Areal Flood Advisory	CTP	Centre	82 min
Jun 13, 9:47 PM EDT	Areal Flood Advisory	CTP	Potter	73 min
Jun 13, 10:58 PM EDT	Areal Flood Advisory	CTP	Centre	2 hr
Jun 13, 11:04 PM EDT	Areal Flood Advisory	CTP	Huntingdon, Mifflin	116 min
Jun 13, 11:04 PM EDT	Special Weather Statement	CTP	Juniata	56 min
Jun 13, 11:56 PM EDT	Special Weather Statement	CTP	Perry	34 min
Jun 14, 12:29 AM EDT	Special Weather Statement	CTP	Cumberland	31 min
Jun 14, 1:12 AM EDT	Severe Thunderstorm Warning	CTP	Cumberland, York	48 min
Jun 14, 11:36 AM EDT	Special Weather Statement	CTP	Warren	39 min
Jun 14, 12:02 PM EDT	Special Weather Statement	CTP	Elk	58 min
Jun 14, 12:47 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Clearfield, Elk	73 min
Jun 14, 1:31 PM EDT	Severe Thunderstorm Warning	CTP	Clinton	74 min
Jun 14, 1:53 PM EDT	Special Weather Statement	CTP	Centre	37 min
Jun 14, 2:33 PM EDT	Severe Thunderstorm Warning	CTP	Clinton, Lycoming, Union	57 min
Jun 14, 3:18 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Lycoming, Montour, Northumberland, Union	57 min
Jun 14, 4:04 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Cambria	41 min
Jun 14, 4:10 PM EDT	Special Weather Statement	CTP	Centre	20 min
Jun 14, 4:10 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Schuylkill	50 min
Jun 14, 4:16 PM EDT	Special Weather Statement	CTP	Somerset	14 min
Jun 14, 4:24 PM EDT	Special Weather Statement	CTP	Blair	21 min
Jun 14, 4:43 PM EDT	Special Weather Statement	CTP	Blair	47 min
Jun 14, 4:44 PM EDT	Special Weather Statement	CTP	Somerset	16 min
Jun 14, 5:04 PM EDT	Special Weather Statement	CTP	Somerset	26 min
Jun 14, 5:49 PM EDT	Special Weather Statement	CTP	Somerset	26 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.