Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 49, NWS State College, PA

June 21, 2021Cambria County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Jun 21, 2021, 4:28 PM EDT for Cambria County, Pennsylvania. It was in force for 47 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 21, 2021, 4:28 PM EDT (20:28 UTC)
Expired: Jun 21, 2021, 5:15 PM EDT
In force: 47 min
Issued by: NWS State College, PA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Cambria County, PA

The radar

The State College radar (KCCX), 62 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.

What was reported inside it

Time	Report	Where	Remark
Jun 21, 4:35 PM EDT	TSTM WND DMG	Colver, PA	MULTIPLE TREES DOWN.
Jun 21, 4:47 PM EDT	TSTM WND DMG	2 Sw Prince Gallitzin S, PA	MULTIPLE REPORTS OF TREES DOWN ALONG GLENDALE LAKE RD EAST OF PATTON.

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 21, 12:31 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 8.5 hours before the alert went out and 130 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: 931 J/kg
Mixed-layer CIN: -41 J/kg
Mixed-layer LCL: 988 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 260 m²/s²
0-3 km storm-relative helicity: 277 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 5.1

Open this sounding in Storm Lab

The text

As transmitted.

916 
WUUS51 KCTP 212028
SVRCTP
PAC021-212115-
/O.NEW.KCTP.SV.W.0049.210621T2028Z-210621T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service State College PA
428 PM EDT Mon Jun 21 2021

The National Weather Service in State College PA has issued a

* Severe Thunderstorm Warning for...
  Central Cambria County in central Pennsylvania...

* Until 515 PM EDT.

* At 428 PM EDT, severe thunderstorms were located along a line
  extending from 6 miles southwest of Northern Cambria to near
  Belsano, moving east at 45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Ebensburg, Nanty-Glo, Northern Cambria, Patton, Cresson, Gallitzin,
  Vinco, Loretto, Hastings, Lilly, Carrolltown, Sankertown, Belsano,
  Prince Gallitzin State Park, Mundys Corner, Colver, Vintondale,
  Ashville, Chest Springs and Cassandra.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4066 7883 4068 7839 4067 7839 4064 7844
      4060 7844 4054 7848 4053 7851 4051 7854
      4040 7857 4043 7895
TIME...MOT...LOC 2028Z 259DEG 37KT 4061 7888 4049 7898 

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

Banghoff

1 follow-up statement

324 
WWUS51 KCTP 212114
SVSCTP

Severe Weather Statement
National Weather Service State College PA
514 PM EDT Mon Jun 21 2021

PAC021-212124-
/O.EXP.KCTP.SV.W.0049.000000T0000Z-210621T2115Z/
Cambria PA-
514 PM EDT Mon Jun 21 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL CAMBRIA COUNTY WILL
EXPIRE AT 515 PM EDT...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
central Pennsylvania. A Severe Thunderstorm Watch also remains in
effect until 1000 PM EDT for central Pennsylvania.

LAT...LON 4066 7883 4068 7839 4067 7839 4064 7844
      4060 7844 4054 7848 4053 7851 4051 7854
      4040 7857 4043 7895
TIME...MOT...LOC 2114Z 259DEG 37KT 4070 7828 4058 7838 

$$

Banghoff

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 8:03 PM EDT	Special Weather Statement	CTP	Juniata	12 min
Jun 20, 8:13 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Snyder	24 min
Jun 20, 8:29 PM EDT	Special Weather Statement	CTP	Dauphin	16 min
Jun 20, 8:35 PM EDT	Special Weather Statement	CTP	McKean	25 min
Jun 20, 8:47 PM EDT	Special Weather Statement	CTP	Dauphin	13 min
Jun 20, 9:02 PM EDT	Special Weather Statement	CTP	Dauphin	13 min
Jun 20, 9:16 PM EDT	Special Weather Statement	CTP	Schuylkill	14 min
Jun 20, 9:23 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Northumberland, Schuylkill	50 min
Jun 20, 9:29 PM EDT	Areal Flood Advisory	CTP	Lebanon, Schuylkill	2 hr
Jun 21, 4:18 AM EDT	Special Weather Statement	CTP	Warren	42 min
Jun 21, 2:19 PM EDT	Special Weather Statement	CTP	Warren	41 min
Jun 21, 2:43 PM EDT	Severe Thunderstorm Warning	CTP	McKean, Warren	47 min
Jun 21, 2:55 PM EDT	Special Weather Statement	CTP	McKean	35 min
Jun 21, 3:09 PM EDT	Severe Thunderstorm Warning	CTP	McKean, Potter	21 min
Jun 21, 3:14 PM EDT	Severe Thunderstorm Warning	CTP	McKean	31 min
Jun 21, 3:20 PM EDT	Special Weather Statement	CTP	Clearfield	25 min
Jun 21, 3:26 PM EDT	Severe Thunderstorm Warning	CTP	Cameron, Elk, McKean, Warren	49 min
Jun 21, 3:35 PM EDT	Special Weather Statement	CTP	Centre	25 min
Jun 21, 3:55 PM EDT	Special Weather Statement	CTP	Tioga	35 min
Jun 21, 3:58 PM EDT	Special Weather Statement	CTP	Snyder	32 min
Jun 21, 4:15 PM EDT	Special Weather Statement	CTP	Cameron, Potter	45 min
Jun 21, 4:17 PM EDT	Special Weather Statement	CTP	Cambria	28 min
Jun 21, 4:18 PM EDT	Special Weather Statement	CTP	Sullivan	27 min
Jun 21, 4:18 PM EDT	Special Weather Statement	CTP	Franklin	27 min
Jun 21, 4:21 PM EDT	Special Weather Statement	CTP	Union	24 min
Jun 21, 4:24 PM EDT	Special Weather Statement	CTP	Centre	21 min
Jun 21, 4:31 PM EDT	Special Weather Statement	CTP	Lycoming	44 min
Jun 21, 4:31 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Franklin	59 min
Jun 21, 4:39 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Somerset	36 min
Jun 21, 4:43 PM EDT	Severe Thunderstorm Warning	CTP	Centre	32 min
Jun 21, 4:45 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Sullivan, Tioga	30 min
Jun 21, 4:52 PM EDT	Special Weather Statement	CTP	Clinton	23 min
Jun 21, 4:55 PM EDT	Special Weather Statement	CTP	Blair	20 min
Jun 21, 4:56 PM EDT	Special Weather Statement	CTP	Sullivan	19 min
Jun 21, 5:05 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Cumberland, York	40 min
Jun 21, 5:08 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clinton, Lycoming	37 min
Jun 21, 5:13 PM EDT	Special Weather Statement	CTP	Bedford, Blair	32 min
Jun 21, 5:31 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Sullivan, Tioga	44 min
Jun 21, 5:41 PM EDT	Severe Thunderstorm Warning	CTP	York	34 min
Jun 21, 5:45 PM EDT	Special Weather Statement	CTP	Montour	45 min
Jun 21, 5:52 PM EDT	Special Weather Statement	CTP	Columbia, Northumberland	23 min
Jun 21, 5:58 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	47 min
Jun 21, 6:02 PM EDT	Special Weather Statement	CTP	Dauphin	28 min
Jun 21, 6:08 PM EDT	Special Weather Statement	CTP	Sullivan	37 min
Jun 21, 6:15 PM EDT	Severe Thunderstorm Warning	CTP	Sullivan	15 min
Jun 21, 6:20 PM EDT	Special Weather Statement	CTP	Schuylkill	25 min
Jun 21, 6:23 PM EDT	Special Weather Statement	CTP	Schuylkill	37 min
Jun 21, 6:49 PM EDT	Special Weather Statement	CTP	Schuylkill	26 min
Jun 21, 7:00 PM EDT	Special Weather Statement	CTP	Somerset	15 min
Jun 21, 7:12 PM EDT	Special Weather Statement	CTP	Carbon	18 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.