Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 18, NWS State College, PA

May 26, 2021Schuylkill County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at May 26, 2021, 9:26 PM EDT for Schuylkill County, Pennsylvania. It was in force for 34 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: May 26, 2021, 9:26 PM EDT (01:26 UTC)
Expired: May 26, 2021, 10:00 PM EDT
In force: 34 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 Philadelphia radar (KDIX), 156 km from the middle of the area, began a volume at 01:27 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
May 26, 9:32 PM EDT	TSTM WND DMG	Auburn, PA	MULTIPLE TREES DOWN IN AUBURN.

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 00:00Z, 1.4 hours before the alert went out and 226 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: 1316 J/kg
Mixed-layer CIN: -55 J/kg
Mixed-layer LCL: 1697 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 104 m²/s²
0-3 km storm-relative helicity: 154 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

As transmitted.

630 
WUUS51 KCTP 270126
SVRCTP
PAC107-270200-
/O.NEW.KCTP.SV.W.0018.210527T0126Z-210527T0200Z/

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

The National Weather Service in State College PA has issued a

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

* Until 1000 PM EDT.

* At 925 PM EDT, severe thunderstorms were located along a line
  extending from Grier City-Park Crest to near Orwigsburg to
  Strausstown, moving east at 50 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Tamaqua, Schuylkill Haven, Mahanoy City, Orwigsburg, Port Carbon,
  Hometown, Tuscarora, New Philadelphia, Grier City-Park Crest,
  Renningers, McKeansburg, Coaldale, Locust Lake State Park, Snyders,
  New Boston-Morea, Lake Wynonah, Palo Alto, Auburn, Deer Lake and
  Cumbola.

This includes Interstate 81 from mile markers 128 to 133.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4070 7581 4064 7598 4063 7600 4057 7602
      4058 7604 4058 7607 4053 7618 4057 7616
      4082 7616 4085 7592 4081 7589 4073 7576
TIME...MOT...LOC 0125Z 248DEG 44KT 4082 7608 4060 7608 4049 7617 

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, 8:04 PM EDT	Special Weather Statement	CTP	Snyder	26 min
May 26, 8:10 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Perry, Snyder	35 min
May 26, 8:29 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Northumberland	32 min
May 26, 8:47 PM EDT	Special Weather Statement	CTP	Schuylkill	28 min
May 26, 9:15 PM EDT	Special Weather Statement	CTP	Schuylkill	30 min
May 26, 9:33 PM EDT	Special Weather Statement	CTP	Lancaster, York	42 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.