Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 6, NWS State College, PA

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

NWS State College, PA issued this severe thunderstorm warning at May 26, 2021, 2:46 PM EDT for Juniata County, Mifflin County, Snyder County, Pennsylvania. It was in force for 20 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 26, 2021, 2:46 PM EDT (18:46 UTC)
Expired: May 26, 2021, 3:06 PM EDT
In force: 20 min
Issued by: NWS State College, PA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Juniata County, PA, Mifflin County, PA, Snyder County, PA

The radar

The State College radar (KCCX), 64 km from the middle of the area, began a volume at 18:50 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.

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, 6.8 hours before the alert went out and 196 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.

412 
WUUS51 KCTP 261846
SVRCTP
PAC067-087-109-261930-
/O.NEW.KCTP.SV.W.0006.210526T1846Z-210526T1930Z/

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

The National Weather Service in State College PA has issued a

* Severe Thunderstorm Warning for...
  Northeastern Mifflin County in central Pennsylvania...
  North central Juniata County in central Pennsylvania...
  Western Snyder County in central Pennsylvania...

* Until 330 PM EDT.

* At 246 PM EDT, a severe thunderstorm was located over Belltown,
  moving east at 35 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Middleburg, Mcalisterville, McClure, Kreamer, Beaver Springs,
  Richfield, Mount Pleasant Mills, Paxtonville, Troxelville,
  Alfarata, Belltown, Snyder-Middleswart State Park, Fremont, Reeds
  Gap State Park, Beavertown and Wagner.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4064 7749 4079 7751 4085 7692 4063 7708
TIME...MOT...LOC 1846Z 264DEG 31KT 4071 7741 

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

Travis

2 follow-up statements

935 
WWUS51 KCTP 261855
SVSCTP

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

PAC087-261904-
/O.CAN.KCTP.SV.W.0006.000000T0000Z-210526T1930Z/
Mifflin PA-
255 PM EDT Wed May 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MIFFLIN COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

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

LAT...LON 4085 7692 4063 7708 4067 7736 4069 7729
      4070 7736 4081 7734
TIME...MOT...LOC 1854Z 264DEG 31KT 4072 7731 

$$

PAC067-109-261930-
/O.CON.KCTP.SV.W.0006.000000T0000Z-210526T1930Z/
Juniata PA-Snyder PA-
255 PM EDT Wed May 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT
FOR NORTH CENTRAL JUNIATA AND WESTERN SNYDER COUNTIES...

At 254 PM EDT, a severe thunderstorm was located over McClure, moving
east at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Middleburg, McClure, Kreamer, Beaver Springs, Richfield, Mount
Pleasant Mills, Paxtonville, Troxelville, Fremont, Snyder-Middleswart
State Park and Beavertown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4085 7692 4063 7708 4067 7736 4069 7729
      4070 7736 4081 7734
TIME...MOT...LOC 1854Z 264DEG 31KT 4072 7731 

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

Travis

876 
WWUS51 KCTP 261906
SVSCTP

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

PAC067-109-261915-
/O.CAN.KCTP.SV.W.0006.000000T0000Z-210526T1930Z/
Juniata PA-Snyder PA-
306 PM EDT Wed May 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL JUNIATA AND
WESTERN SNYDER COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.

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

LAT...LON 4085 7692 4063 7708 4067 7736 4069 7729
      4070 7736 4081 7734
TIME...MOT...LOC 1904Z 264DEG 31KT 4073 7718 

$$

Travis

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, 2:16 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Perry, Snyder	44 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, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.