Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 22, NWS State College, PA

June 9, 2021Schuylkill County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Jun 9, 2021, 6:28 PM EDT for Schuylkill County, Pennsylvania. It was in force for 62 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: Jun 9, 2021, 6:28 PM EDT (22:28 UTC)
Expired: Jun 9, 2021, 7:30 PM EDT
In force: 62 min
Issued by: NWS State College, PA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Schuylkill County, PA

The radar

The State College radar (KCCX), 156 km from the middle of the area, began a volume at 22:31 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 9, 6:35 PM EDT	TSTM WND DMG	Summit Station, PA	MULTIPLE TREES DOWN VICINITY OF SUMMIT STATION. TIME ESTIMATED FROM RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 10.5 hours before the alert went out and 223 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: 193 J/kg
Mixed-layer CIN: -128 J/kg
Mixed-layer LCL: 1225 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: -75 m²/s²
0-3 km storm-relative helicity: 3 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

948 
WUUS51 KCTP 092228
SVRCTP
PAC107-092330-
/O.NEW.KCTP.SV.W.0022.210609T2228Z-210609T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service State College PA
628 PM EDT Wed Jun 9 2021

The National Weather Service in State College PA has issued a

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

* Until 730 PM EDT.

* At 627 PM EDT, a severe thunderstorm was located over Port Carbon,
  moving northwest at 15 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Pottsville, Schuylkill Haven, Shenandoah, Minersville, Mahanoy
  City, Frackville, St. Clair, Ashland, Orwigsburg, Port Carbon,
  Girardville, Tuscarora, New Philadelphia, Friedensburg, Grier
  City-Park Crest, Lavelle, Marlin, Altamont, Renningers and
  Englewood.

This includes Interstate 81 from mile markers 114 to 132.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4063 7600 4062 7600 4052 7623 4074 7642
      4079 7636 4081 7631 4083 7630 4093 7618
      4066 7594
TIME...MOT...LOC 2227Z 144DEG 34KT 4070 7616 

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

Martin

1 follow-up statement

717 
WWUS51 KCTP 092250
SVSCTP

Severe Weather Statement
National Weather Service State College PA
650 PM EDT Wed Jun 9 2021

PAC107-092330-
/O.CON.KCTP.SV.W.0022.000000T0000Z-210609T2330Z/
Schuylkill PA-
650 PM EDT Wed Jun 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR CENTRAL SCHUYLKILL COUNTY...

At 648 PM EDT, a severe thunderstorm was located near Schuylkill, 
moving northwest at 10 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Pottsville, Schuylkill Haven, Shenandoah, Minersville, Mahanoy City,
Frackville, St. Clair, Ashland, Orwigsburg, Port Carbon, Girardville,
Tuscarora, New Philadelphia, Friedensburg, Grier City-Park Crest,
Lavelle, Marlin, Altamont, Renningers and Englewood.

This includes Interstate 81 from mile markers 114 to 132.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4063 7600 4062 7600 4052 7623 4074 7642
      4079 7636 4081 7631 4083 7630 4093 7618
      4066 7594
TIME...MOT...LOC 2248Z 144DEG 34KT 4087 7632 

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

Martin

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 9, 1:37 PM EDT	Special Weather Statement	CTP	Tioga	53 min
Jun 9, 2:04 PM EDT	Severe Thunderstorm Warning	CTP	Potter	26 min
Jun 9, 2:11 PM EDT	Special Weather Statement	CTP	Clearfield	34 min
Jun 9, 2:18 PM EDT	Special Weather Statement	CTP	Elk	27 min
Jun 9, 2:36 PM EDT	Special Weather Statement	CTP	Potter	24 min
Jun 9, 2:43 PM EDT	Special Weather Statement	CTP	Blair	32 min
Jun 9, 2:51 PM EDT	Special Weather Statement	CTP	Potter	24 min
Jun 9, 2:55 PM EDT	Special Weather Statement	CTP	Dauphin	35 min
Jun 9, 2:59 PM EDT	Special Weather Statement	CTP	Centre	31 min
Jun 9, 3:03 PM EDT	Special Weather Statement	CTP	Huntingdon	27 min
Jun 9, 3:08 PM EDT	Special Weather Statement	CTP	McKean	37 min
Jun 9, 3:14 PM EDT	Special Weather Statement	CTP	Cameron	31 min
Jun 9, 3:27 PM EDT	Special Weather Statement	CTP	Dauphin	33 min
Jun 9, 3:36 PM EDT	Special Weather Statement	CTP	Forest	24 min
Jun 9, 3:52 PM EDT	Special Weather Statement	CTP	McKean	23 min
Jun 9, 4:02 PM EDT	Severe Thunderstorm Warning	CTP	McKean, Warren	28 min
Jun 9, 4:31 PM EDT	Special Weather Statement	CTP	Warren	59 min
Jun 9, 5:09 PM EDT	Special Weather Statement	CTP	Warren	66 min
Jun 9, 5:13 PM EDT	Special Weather Statement	CTP	York	62 min
Jun 9, 5:35 PM EDT	Areal Flood Advisory	CTP	Cumberland, York	85 min
Jun 9, 5:36 PM EDT	Special Weather Statement	CTP	Schuylkill	54 min
Jun 9, 5:46 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	44 min
Jun 9, 6:00 PM EDT	Special Weather Statement	CTP	Adams	30 min
Jun 9, 6:14 PM EDT	Areal Flood Advisory	CTP	Schuylkill	23 min
Jun 9, 6:30 PM EDT	Special Weather Statement	CTP	York	45 min
Jun 9, 6:37 PM EDT	Flash Flood Warning	CTP	Schuylkill	3 hr
Jun 9, 6:38 PM EDT	Special Weather Statement	CTP	Lycoming	52 min
Jun 9, 7:05 PM EDT	Special Weather Statement	CTP	Lancaster	40 min
Jun 9, 7:09 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	51 min
Jun 9, 7:54 PM EDT	Special Weather Statement	CTP	Lancaster	36 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.