Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 33, NWS State College, PA

June 13, 2021McKean County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Jun 13, 2021, 8:10 PM EDT for McKean County, Pennsylvania. It was in force for 35 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 13, 2021, 8:10 PM EDT (00:10 UTC)
Expired: Jun 13, 2021, 8:45 PM EDT
In force: 35 min
Issued by: NWS State College, PA
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

County McKean County, PA

The radar

The State College radar (KCCX), 116 km from the middle of the area, began a volume at 00:12 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.

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 00:00Z, 0.2 hours before the alert went out and 115 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: 746 J/kg
Mixed-layer CIN: -81 J/kg
Mixed-layer LCL: 1307 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 15 m²/s²
0-3 km storm-relative helicity: -8 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

676 
WUUS51 KCTP 140010
SVRCTP
PAC083-140045-
/O.NEW.KCTP.SV.W.0033.210614T0010Z-210614T0045Z/

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

The National Weather Service in State College PA has issued a

* Severe Thunderstorm Warning for...
  Northeastern McKean County in north central Pennsylvania...

* Until 845 PM EDT.

* At 809 PM EDT, a severe thunderstorm was located over Cyclone,
  moving northeast at 30 mph.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Trained weather spotters reported quarter sized hail just 
           west of Cyclone on route 219.

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

* This severe thunderstorm will be near...
  Cyclone around 810 PM EDT.
  Rew and Smethport around 820 PM EDT.
  Coryville around 830 PM EDT.

Other locations impacted by this severe thunderstorm include Eldred,
Lewis Run, Bradford Airport and Mount Jewett.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4199 7821 4189 7821 4172 7863 4187 7877
      4200 7855 4200 7820
TIME...MOT...LOC 0009Z 236DEG 29KT 4184 7862 

HAIL...1.25IN
WIND...60MPH
 
$$

Jurewicz

The office that day

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

Issued	Product	Office	Counties	Lasted
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, 12:37 AM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Perry	38 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.