Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 64, NWS State College, PA

June 30, 2021Cambria County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Jun 30, 2021, 2:25 PM EDT for Cambria County, Pennsylvania. It was in force for 28 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 30, 2021, 2:25 PM EDT (18:25 UTC)
Expired: Jun 30, 2021, 2:53 PM EDT
In force: 28 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), 63 km from the middle of the area, began a volume at 18:23 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 30, 12:46 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 12:00Z, 6.4 hours before the alert went out and 124 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: 807 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 1240 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 71 m²/s²
0-3 km storm-relative helicity: 66 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

As transmitted.

401 
WUUS51 KCTP 301825
SVRCTP
PAC021-301915-
/O.NEW.KCTP.SV.W.0064.210630T1825Z-210630T1915Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service State College PA
225 PM EDT Wed Jun 30 2021

The National Weather Service in State College PA has issued a

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

* Until 315 PM EDT.

* At 225 PM EDT, a severe thunderstorm was located near Northern
  Cambria, moving east at 20 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Northern Cambria, Patton, Hastings, Carrolltown, Prince Gallitzin
  State Park and Chest Springs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4073 7880 4073 7844 4057 7849 4061 7886
TIME...MOT...LOC 1825Z 271DEG 17KT 4071 7876 

HAIL...0.75IN
WIND...60MPH
 
$$

Travis

1 follow-up statement

456 
WWUS51 KCTP 301853
SVSCTP

Severe Weather Statement
National Weather Service State College PA
253 PM EDT Wed Jun 30 2021

PAC021-301902-
/O.CAN.KCTP.SV.W.0064.000000T0000Z-210630T1915Z/
Cambria PA-
253 PM EDT Wed Jun 30 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CAMBRIA COUNTY IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.  However heavy rain is
still possible in the area.

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

LAT...LON 4073 7880 4073 7844 4057 7849 4061 7886
TIME...MOT...LOC 1852Z 271DEG 17KT 4071 7859 

$$

Travis

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 29, 8:56 PM EDT	Heat Advisory	CTP	Columbia, Dauphin, Lancaster, Lebanon, Lycoming, Montour and 5 more	22 hr
Jun 29, 9:10 PM EDT	Special Weather Statement	CTP	Centre	20 min
Jun 29, 9:16 PM EDT	Severe Thunderstorm Warning	CTP	McKean, Warren	89 min
Jun 29, 9:27 PM EDT	Special Weather Statement	CTP	Centre	18 min
Jun 29, 9:30 PM EDT	Severe Thunderstorm Warning	CTP	Centre	45 min
Jun 29, 10:17 PM EDT	Special Weather Statement	CTP	Sullivan	28 min
Jun 29, 10:27 PM EDT	Special Weather Statement	CTP	Potter	33 min
Jun 29, 10:42 PM EDT	Severe Thunderstorm Warning	CTP	Potter, Tioga	63 min
Jun 29, 10:59 PM EDT	Special Weather Statement	CTP	Lycoming	31 min
Jun 29, 11:23 PM EDT	Special Weather Statement	CTP	Sullivan	22 min
Jun 29, 11:38 PM EDT	Special Weather Statement	CTP	Tioga	67 min
Jun 29, 11:39 PM EDT	Special Weather Statement	CTP	Sullivan	66 min
Jun 30, 6:59 AM EDT	Special Weather Statement	CTP	McKean	46 min
Jun 30, 1:13 PM EDT	Special Weather Statement	CTP	Warren	47 min
Jun 30, 1:46 PM EDT	Special Weather Statement	CTP	Clinton	29 min
Jun 30, 1:59 PM EDT	Special Weather Statement	CTP	McKean	46 min
Jun 30, 2:14 PM EDT	Severe Thunderstorm Warning	CTP	Clinton, Lycoming	50 min
Jun 30, 3:15 PM EDT	Special Weather Statement	CTP	Cambria	45 min
Jun 30, 3:24 PM EDT	Special Weather Statement	CTP	Centre	36 min
Jun 30, 3:46 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Montour, Northumberland, Snyder, Union	44 min
Jun 30, 3:59 PM EDT	Special Weather Statement	CTP	Somerset	46 min
Jun 30, 4:22 PM EDT	Special Weather Statement	CTP	Juniata	38 min
Jun 30, 4:42 PM EDT	Special Weather Statement	CTP	Columbia, Montour	48 min
Jun 30, 5:05 PM EDT	Special Weather Statement	CTP	Fulton	40 min
Jun 30, 5:24 PM EDT	Severe Thunderstorm Warning	CTP	Franklin, Fulton	48 min
Jun 30, 6:10 PM EDT	Special Weather Statement	CTP	Cumberland	35 min
Jun 30, 6:27 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland	48 min
Jun 30, 7:00 PM EDT	Special Weather Statement	CTP	Dauphin	15 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.