Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 2, NWS State College, PA

May 26, 2021Juniata County, Perry County, Snyder County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at May 26, 2021, 2:16 PM EDT for Juniata County, Perry County, Snyder County, Pennsylvania. It was in force for 44 min. 3 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: May 26, 2021, 2:16 PM EDT (18:16 UTC)
Expired: May 26, 2021, 3:00 PM EDT
In force: 44 min
Issued by: NWS State College, PA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Juniata County, PA, Perry County, PA, Snyder County, PA

The radar

The State College radar (KCCX), 86 km from the middle of the area, began a volume at 18:18 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
May 26, 2:30 PM EDT	TSTM WND DMG	1 Nne Liverpool, PA	TREES/WIRES DOWN NEAR LIVERPOOL.
May 26, 2:35 PM EDT	TSTM WND DMG	3 N Liverpool, PA	TREES/WIRES DOWN ON LIGHT STREET IN SUSQUEHANNA TWP.
May 26, 2:47 PM EDT	TSTM WND DMG	Millerstown, PA	TREES/WIRES DOWN NEAR MILLERSTOWN.

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
May 26, 12:59 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 6.3 hours before the alert went out and 186 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: 478 J/kg
Mixed-layer CIN: -132 J/kg
Mixed-layer LCL: 922 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 35 m²/s²
0-3 km storm-relative helicity: 50 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

067 
WUUS51 KCTP 261816
SVRCTP
PAC067-099-109-261900-
/O.NEW.KCTP.SV.W.0002.210526T1816Z-210526T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service State College PA
216 PM EDT Wed May 26 2021

The National Weather Service in State College PA has issued a

* Severe Thunderstorm Warning for...
  Northeastern Juniata County in central Pennsylvania...
  South central Snyder County in central Pennsylvania...
  Northeastern Perry County in south central Pennsylvania...

* Until 300 PM EDT.

* At 216 PM EDT, severe thunderstorms were located along a line
  extending from Meiserville to near Newport to near Mexico, moving
  east at 30 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Richfield, Mexico, Meiserville, Liverpool, Thompsontown,
  Millerstown and East Salem.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4050 7741 4061 7725 4068 7717 4068 7715
      4072 7711 4071 7695 4069 7693 4067 7694
      4065 7693 4059 7696 4057 7699 4054 7698
      4052 7698 4049 7696
TIME...MOT...LOC 1816Z 256DEG 28KT 4068 7700 4055 7709 4051 7728 

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

Colbert

1 follow-up statement

461 
WWUS51 KCTP 261848
SVSCTP

Severe Weather Statement
National Weather Service State College PA
248 PM EDT Wed May 26 2021

PAC067-109-261857-
/O.CAN.KCTP.SV.W.0002.000000T0000Z-210526T1900Z/
Juniata PA-Snyder PA-
248 PM EDT Wed May 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN JUNIATA AND SOUTH
CENTRAL SNYDER COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

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

LAT...LON 4050 7733 4052 7729 4056 7717 4058 7718
      4059 7717 4061 7701 4063 7695 4059 7696
      4057 7699 4054 7698 4052 7698 4049 7696
TIME...MOT...LOC 1847Z 256DEG 28KT 4074 7669 4061 7678 4057 7697 

$$

PAC099-261900-
/O.CON.KCTP.SV.W.0002.000000T0000Z-210526T1900Z/
Perry PA-
248 PM EDT Wed May 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM EDT
FOR NORTHEASTERN PERRY COUNTY...

At 247 PM EDT, severe thunderstorms were located along a line
extending from near Rebuck to near Elizabethville to near
Millersburg, moving east at 30 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Liverpool and Millerstown. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4050 7733 4052 7729 4056 7717 4058 7718
      4059 7717 4061 7701 4063 7695 4059 7696
      4057 7699 4054 7698 4052 7698 4049 7696
TIME...MOT...LOC 1847Z 256DEG 28KT 4074 7669 4061 7678 4057 7697 

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
May 26, 12:38 PM EDT	Special Weather Statement	CTP	Cambria	52 min
May 26, 1:23 PM EDT	Severe Thunderstorm Warning	CTP	Clearfield, Elk	41 min
May 26, 2:00 PM EDT	Special Weather Statement	CTP	Juniata	45 min
May 26, 2:07 PM EDT	Special Weather Statement	CTP	Franklin	23 min
May 26, 2:11 PM EDT	Special Weather Statement	CTP	Mifflin	49 min
May 26, 2:31 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Lycoming, Sullivan	39 min
May 26, 2:33 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Juniata, Lebanon, Northumberland, Perry, Schuylkill and 1 more	57 min
May 26, 2:42 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Franklin, Perry	50 min
May 26, 2:46 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Mifflin, Snyder	20 min
May 26, 3:09 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Perry	51 min
May 26, 3:23 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lebanon, Schuylkill	82 min
May 26, 3:35 PM EDT	Severe Thunderstorm Warning	CTP	Adams	44 min
May 26, 3:51 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lancaster, Lebanon	54 min
May 26, 4:03 PM EDT	Special Weather Statement	CTP	Lancaster, York	27 min
May 26, 4:37 PM EDT	Special Weather Statement	CTP	Lancaster	23 min
May 26, 4:47 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	43 min
May 26, 5:00 PM EDT	Special Weather Statement	CTP	Adams	30 min
May 26, 5:02 PM EDT	Special Weather Statement	CTP	Lancaster	28 min
May 26, 5:17 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Cumberland, York	43 min
May 26, 5:29 PM EDT	Special Weather Statement	CTP	Lancaster	16 min
May 26, 5:37 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	23 min
May 26, 6:13 PM EDT	Special Weather Statement	CTP	Cambria	32 min
May 26, 6:30 PM EDT	Severe Thunderstorm Warning	CTP	Cambria	15 min
May 26, 6:35 PM EDT	Special Weather Statement	CTP	Lebanon	25 min
May 26, 6:44 PM EDT	Severe Thunderstorm Warning	CTP	Blair	37 min
May 26, 7:09 PM EDT	Special Weather Statement	CTP	Huntingdon	36 min
May 26, 7:22 PM EDT	Special Weather Statement	CTP	Lancaster	23 min
May 26, 7:32 PM EDT	Special Weather Statement	CTP	Mifflin	13 min
May 26, 7:42 PM EDT	Special Weather Statement	CTP	Juniata, Mifflin	33 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.