Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 8, NWS State College, PA

May 26, 2021Dauphin County, Lebanon County, Schuylkill County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at May 26, 2021, 3:23 PM EDT for Dauphin County, Lebanon County, Schuylkill County, Pennsylvania. It was in force for 82 min. 2 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, 3:23 PM EDT (19:23 UTC)
Expired
May 26, 2021, 4:45 PM EDT
In force
82 min
Issued by
NWS State College, PA
Area
Storm-based polygon
Hail
0.88 in
Wind
60.0 mph

Counties Dauphin County, PA, Lebanon County, PA, Schuylkill County, PA

The radar

The State College radar (KCCX), 155 km from the middle of the area, began a volume at 19:27 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

TimeReportWhereRemark
May 26, 3:35 PM EDTTSTM WND DMG4 E Pine Grove, PATREES DOWN ON ROCK ROAD NEAR NATURES ROAD EAST OF PINE GROVE.
May 26, 3:55 PM EDTTSTM WND DMG2 Sw Lickdale, PATREES AND WIRES DOWN ALONG ROUTE 72 NORTH OF JONESTOWN.

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.

IssuedProductOfficeLasted
May 26, 12:59 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 7.4 hours before the alert went out and 204 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-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 2021-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 478 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 2021-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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.

986 
WUUS51 KCTP 261923
SVRCTP
PAC043-075-107-262045-
/O.NEW.KCTP.SV.W.0008.210526T1923Z-210526T2045Z/

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

The National Weather Service in State College PA has issued a

* Severe Thunderstorm Warning for...
  Southern Schuylkill County in central Pennsylvania...
  East central Dauphin County in south central Pennsylvania...
  Northern Lebanon County in south central Pennsylvania...

* Until 445 PM EDT.

* At 323 PM EDT, severe thunderstorms were located along a line
  extending from Donaldson to Fort Indiantown Gap, moving east at 20
  mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Schuylkill Haven, Myerstown, Orwigsburg, Valley View, Pine Grove,
  Tremont, Fredericksburg, Tower City, Friedensburg, Renningers,
  Donaldson, Lickdale, Fort Indiantown Gap, Lake Wynonah, Jonestown,
  Cressona, Hegins, Auburn, Deer Lake and Ravine.

This includes the following Interstates...
 Interstate 78 from mile markers 0 to 8.
 Interstate 81 from mile markers 85 to 112.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4063 7600 4057 7602 4058 7604 4058 7607
      4053 7617 4052 7626 4052 7634 4049 7644
      4049 7642 4038 7626 4042 7671 4067 7653
      4066 7594
TIME...MOT...LOC 1923Z 273DEG 20KT 4065 7644 4045 7656 

HAIL...0.88IN
WIND...60MPH
 
$$

Colbert/Travis
1 follow-up statement
417 
WWUS51 KCTP 261957
SVSCTP

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

PAC043-262006-
/O.CAN.KCTP.SV.W.0008.000000T0000Z-210526T2045Z/
Dauphin PA-
357 PM EDT Wed May 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL DAUPHIN COUNTY 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 4063 7600 4057 7602 4058 7604 4058 7607
      4053 7617 4052 7626 4052 7634 4049 7644
      4049 7642 4038 7626 4041 7659 4054 7651
      4067 7639 4066 7594
TIME...MOT...LOC 1956Z 273DEG 20KT 4064 7620 4044 7632 

$$

PAC075-107-262045-
/O.CON.KCTP.SV.W.0008.000000T0000Z-210526T2045Z/
Schuylkill PA-Lebanon PA-
357 PM EDT Wed May 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR SOUTHEASTERN SCHUYLKILL AND NORTHERN LEBANON COUNTIES...

At 356 PM EDT, severe thunderstorms were located along a line
extending from Schuylkill Haven to near Myerstown, moving east at 25
mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Schuylkill Haven, Myerstown, Orwigsburg, Pine Grove, Tremont,
Fredericksburg, Friedensburg, Renningers, Branchdale, Donaldson,
Lickdale, Fort Indiantown Gap, Lake Wynonah, Jonestown, Cressona,
Auburn, Deer Lake, Ravine, Port Clinton and Newtown.

This includes the following Interstates...
 Interstate 78 from mile markers 0 to 8.
 Interstate 81 between mile markers 86 and 106...and from mile
markers 111 to 112.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4063 7600 4057 7602 4058 7604 4058 7607
      4053 7617 4052 7626 4052 7634 4049 7644
      4049 7642 4038 7626 4041 7659 4054 7651
      4067 7639 4066 7594
TIME...MOT...LOC 1956Z 273DEG 20KT 4064 7620 4044 7632 

HAIL...0.88IN
WIND...60MPH
 
$$

Colbert

The office that day

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

IssuedProductOfficeCountiesLasted
May 26, 12:38 PM EDTSpecial Weather StatementCTPCambria52 min
May 26, 1:23 PM EDTSevere Thunderstorm WarningCTPClearfield, Elk41 min
May 26, 2:00 PM EDTSpecial Weather StatementCTPJuniata45 min
May 26, 2:07 PM EDTSpecial Weather StatementCTPFranklin23 min
May 26, 2:11 PM EDTSpecial Weather StatementCTPMifflin49 min
May 26, 2:16 PM EDTSevere Thunderstorm WarningCTPJuniata, Perry, Snyder44 min
May 26, 2:31 PM EDTSevere Thunderstorm WarningCTPColumbia, Lycoming, Sullivan39 min
May 26, 2:33 PM EDTSevere Thunderstorm WarningCTPDauphin, Juniata, Lebanon, Northumberland, Perry, Schuylkill and 1 more57 min
May 26, 2:42 PM EDTSevere Thunderstorm WarningCTPCumberland, Franklin, Perry50 min
May 26, 2:46 PM EDTSevere Thunderstorm WarningCTPJuniata, Mifflin, Snyder20 min
May 26, 3:09 PM EDTSevere Thunderstorm WarningCTPDauphin, Perry51 min
May 26, 3:35 PM EDTSevere Thunderstorm WarningCTPAdams44 min
May 26, 3:51 PM EDTSevere Thunderstorm WarningCTPDauphin, Lancaster, Lebanon54 min
May 26, 4:03 PM EDTSpecial Weather StatementCTPLancaster, York27 min
May 26, 4:37 PM EDTSpecial Weather StatementCTPLancaster23 min
May 26, 4:47 PM EDTSevere Thunderstorm WarningCTPLancaster43 min
May 26, 5:00 PM EDTSpecial Weather StatementCTPAdams30 min
May 26, 5:02 PM EDTSpecial Weather StatementCTPLancaster28 min
May 26, 5:17 PM EDTSevere Thunderstorm WarningCTPAdams, Cumberland, York43 min
May 26, 5:29 PM EDTSpecial Weather StatementCTPLancaster16 min
May 26, 5:37 PM EDTSevere Thunderstorm WarningCTPLancaster23 min
May 26, 6:13 PM EDTSpecial Weather StatementCTPCambria32 min
May 26, 6:30 PM EDTSevere Thunderstorm WarningCTPCambria15 min
May 26, 6:35 PM EDTSpecial Weather StatementCTPLebanon25 min
May 26, 6:44 PM EDTSevere Thunderstorm WarningCTPBlair37 min
May 26, 7:09 PM EDTSpecial Weather StatementCTPHuntingdon36 min
May 26, 7:22 PM EDTSpecial Weather StatementCTPLancaster23 min
May 26, 7:32 PM EDTSpecial Weather StatementCTPMifflin13 min
May 26, 7:42 PM EDTSpecial Weather StatementCTPJuniata, Mifflin33 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2021Every 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.