Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 71, NWS State College, PA

July 6, 2021Sullivan County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Jul 6, 2021, 3:22 PM EDT for Sullivan County, Pennsylvania. It was in force for 23 min. 1 report 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: Jul 6, 2021, 3:22 PM EDT (19:22 UTC)
Expired: Jul 6, 2021, 3:45 PM EDT
In force: 23 min
Issued by: NWS State College, PA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Sullivan County, PA

The radar

The Binghamton radar (KBGM), 92 km from the middle of the area, began a volume at 19:24 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
Jul 6, 3:30 PM EDT	TSTM WND DMG	2 Se Dushore, PA	MULTIPLE TREES/BRANCHES/WIRES DOWN BETWEEN EAST CHERRY ST/487 INTERSECTION AND CONNELLS DAM/487 INTERSECTION.

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
Jul 6, 1:13 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 7.4 hours before the alert went out and 252 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: 326 J/kg
Mixed-layer CIN: -120 J/kg
Mixed-layer LCL: 941 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 182 m²/s²
0-3 km storm-relative helicity: 202 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

298 
WUUS51 KCTP 061922
SVRCTP
PAC113-061945-
/O.NEW.KCTP.SV.W.0071.210706T1922Z-210706T1945Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service State College PA
322 PM EDT Tue Jul 6 2021

The National Weather Service in State College PA has issued a

* Severe Thunderstorm Warning for...
  Eastern Sullivan County in north central Pennsylvania...

* Until 345 PM EDT.

* At 322 PM EDT, a severe thunderstorm was located 8 miles southeast
  of Overton, moving east at 35 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Ricketts Glen State Park, Dushore and Laporte. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4134 7629 4132 7631 4141 7655 4156 7648
      4154 7622
TIME...MOT...LOC 1922Z 290DEG 39KT 4149 7638 

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

Travis

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 6, 11:38 AM EDT	Special Weather Statement	CTP	Warren	52 min
Jul 6, 11:59 AM EDT	Special Weather Statement	CTP	McKean	46 min
Jul 6, 12:45 PM EDT	Special Weather Statement	CTP	Potter	45 min
Jul 6, 1:26 PM EDT	Special Weather Statement	CTP	Tioga	34 min
Jul 6, 1:51 PM EDT	Special Weather Statement	CTP	Warren	24 min
Jul 6, 2:21 PM EDT	Special Weather Statement	CTP	McKean, Warren	54 min
Jul 6, 2:49 PM EDT	Severe Thunderstorm Warning	CTP	McKean, Warren	56 min
Jul 6, 3:01 PM EDT	Special Weather Statement	CTP	Sullivan	44 min
Jul 6, 3:17 PM EDT	Special Weather Statement	CTP	Sullivan	43 min
Jul 6, 3:36 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Sullivan	24 min
Jul 6, 3:57 PM EDT	Special Weather Statement	CTP	Dauphin	33 min
Jul 6, 4:05 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lebanon	40 min
Jul 6, 4:31 PM EDT	Special Weather Statement	CTP	Elk	29 min
Jul 6, 4:41 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lancaster, Lebanon	33 min
Jul 6, 4:48 PM EDT	Special Weather Statement	CTP	Schuylkill	27 min
Jul 6, 6:52 PM EDT	Special Weather Statement	CTP	McKean	23 min
Jul 6, 6:59 PM EDT	Heat Advisory	CTP	Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 2 more	24 hr

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.