Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 38, NWS State College, PA

June 14, 2021Clinton County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Jun 14, 2021, 1:31 PM EDT for Clinton County, Pennsylvania. It was in force for 74 min. 4 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 14, 2021, 1:31 PM EDT (17:31 UTC)
Expired: Jun 14, 2021, 2:45 PM EDT
In force: 74 min
Issued by: NWS State College, PA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Clinton County, PA

The radar

The State College radar (KCCX), 45 km from the middle of the area, began a volume at 17:34 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 14, 2:00 PM EDT	TSTM WND DMG	2 Wsw Renovo, PA	TREE DOWN BLOCKING RIDGE ROAD IN NOYES TOWNSHIP.
Jun 14, 2:17 PM EDT	TSTM WND DMG	1 Wnw Glen Union, PA	MULTIPLE TREES DOWN IN THE VICINITY OF ROUTE 120 (RENOVO ROAD) AND LAZY LANE IN GRUGAN TOWNSHIP.
Jun 14, 2:35 PM EDT	TSTM WND DMG	1 Ene Mcelhattan, PA	SEVERAL REPORTS OF TREES DOWN BETWEEN LOCK HAVEN AND AVIS.
Jun 14, 2:36 PM EDT	TSTM WND DMG	2 S Avis, PA	TREE DOWN BLOCKING BOTH LANES OF PINE-LOGANTON ROAD IN WAYNE TOWSNHIP.

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 14, 11:46 AM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 5.5 hours before the alert went out and 201 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: 1367 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 72 m²/s²
0-3 km storm-relative helicity: 70 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

378 
WUUS51 KCTP 141731
SVRCTP
PAC035-141845-
/O.NEW.KCTP.SV.W.0038.210614T1731Z-210614T1845Z/

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

The National Weather Service in State College PA has issued a

* Severe Thunderstorm Warning for...
  Clinton County in north central Pennsylvania...

* Until 245 PM EDT.

* At 130 PM EDT, severe thunderstorms were located along a line
  extending from near Wharton to near Stevenson Dam to 8 miles north
  of Karthaus, moving east at 40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Lock Haven, Keating, Avis, Dunnstown, Flemington, Renovo, Castanea,
  McElhattan, South Renovo, Westport, Glen Union, Hyner, Tamarack,
  Kettle Creek State Park and Lock Haven University.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4146 7759 4144 7760 4137 7754 4135 7749
      4131 7747 4124 7738 4121 7731 4110 7720
      4114 7779 4118 7779 4118 7790 4125 7790
      4121 7794 4121 7797 4116 7799 4116 7803
      4122 7809 4137 7799 4147 7799
TIME...MOT...LOC 1730Z 274DEG 35KT 4150 7809 4135 7807 4125 7814 

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

Colbert

1 follow-up statement

500 
WWUS51 KCTP 141817
SVSCTP

Severe Weather Statement
National Weather Service State College PA
217 PM EDT Mon Jun 14 2021

PAC035-141845-
/O.CON.KCTP.SV.W.0038.000000T0000Z-210614T1845Z/
Clinton PA-
217 PM EDT Mon Jun 14 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 PM EDT
FOR CENTRAL CLINTON COUNTY...

At 216 PM EDT, severe thunderstorms were located along a line
extending from near Hyner to near Glen Union to near Blanchard,
moving east at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Law enforcement.

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

Locations impacted include...
Lock Haven, Avis, Dunnstown, Flemington, Renovo, Castanea,
McElhattan, Glen Union, Hyner and Lock Haven University.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4114 7774 4122 7771 4146 7775 4146 7759
      4144 7760 4137 7754 4135 7749 4131 7747
      4124 7738 4121 7731 4110 7720
TIME...MOT...LOC 1816Z 282DEG 33KT 4140 7764 4121 7757 4111 7761 

HAIL...<.75IN
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, 8:10 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, 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, 1:53 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.