Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 272, NWS State College, PA

September 13, 2021Columbia County, Montour County, Schuylkill County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Sep 13, 2021, 8:01 PM EDT for Columbia County, Montour County, Schuylkill County, Pennsylvania. It was in force for 48 min. 6 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: Sep 13, 2021, 8:01 PM EDT (00:01 UTC)
Expired: Sep 13, 2021, 8:49 PM EDT
In force: 48 min
Issued by: NWS State College, PA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Columbia County, PA, Montour County, PA, Schuylkill County, PA

The radar

The State College radar (KCCX), 140 km from the middle of the area, began a volume at 00:05 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
Sep 13, 8:10 PM EDT	TSTM WND GST 56	3 Ne Shumans, PA
Sep 13, 8:12 PM EDT	TSTM WND DMG	Mifflinville, PA	NUMEROUS DOWNED WIRES/POWER OUTAGES IN THE MIFFLINVILLE AREA.
Sep 13, 8:14 PM EDT	TSTM WND DMG	1 Nne Scotch Valley, PA	NUMEROUS TREES UPROOTED. PEAK WINDS ESTIMATED NEAR 80 MPH.
Sep 13, 8:20 PM EDT	TSTM WND DMG	2 Sse Nuremburg, PA	2 LARGE TREES DOWN.
Sep 13, 8:30 PM EDT	TSTM WND DMG	2 Nw Hometown, PA	NUMEROUS TREES DOWN AND WIDESPREAD CROP DAMAGE.
Sep 13, 8:30 PM EDT	TSTM WND GST 68	4 Wnw Hometown, PA	MEASURED BY A PENNDOT STATION AT THE DELANO EXIT (#134) ON I-81. CORRECTS THE PREVIOUS REPORTS LISTED AT 3 N TREMONT.

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
Sep 13, 5:53 PM EDT	Severe Thunderstorm Watch	SPC	3 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 0.0 hours before the alert went out and 235 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: 1289 J/kg
Mixed-layer CIN: -186 J/kg
Mixed-layer LCL: 1463 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 72 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

024 
WUUS51 KCTP 140001
SVRCTP
PAC037-093-107-140100-
/O.NEW.KCTP.SV.W.0272.210914T0001Z-210914T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service State College PA
801 PM EDT Mon Sep 13 2021

The National Weather Service in State College PA has issued a

* Severe Thunderstorm Warning for...
  Northeastern Schuylkill County in central Pennsylvania...
  Central Montour County in central Pennsylvania...
  Southern Columbia County in central Pennsylvania...

* Until 900 PM EDT.

* At 800 PM EDT, severe thunderstorms were located along a line
  extending from Bloomsburg to near Exchange, moving southeast at 40
  mph.

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

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Bloomsburg, Tamaqua, Shenandoah, Danville, Mahanoy City,
  Frackville, Ashland, Mcadoo, Riverside, Catawissa, Girardville,
  Hometown, Mifflinville, Tuscarora, Lightstreet, Almedia, Oneida,
  Grier City-Park Crest, Altamont and Fernville.

For those driving on Interstate 80, this includes areas between the
Limestoneville and Nescopek exits, specifically from mile markers 222
to 247.

This includes Interstate 81 from mile markers 123 to 139.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in State College PA.

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with these storms. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

Very heavy rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4078 7638 4083 7641 4083 7650 4088 7651
      4090 7656 4094 7656 4097 7667 4104 7674
      4113 7662 4103 7623 4095 7621 4090 7604
      4091 7600 4081 7589 4073 7576
TIME...MOT...LOC 0000Z 294DEG 34KT 4103 7646 4105 7668 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Banghoff

2 follow-up statements

144 
WWUS51 KCTP 140027
SVSCTP

Severe Weather Statement
National Weather Service State College PA
827 PM EDT Mon Sep 13 2021

PAC093-140037-
/O.CAN.KCTP.SV.W.0272.000000T0000Z-210914T0100Z/
Montour PA-
827 PM EDT Mon Sep 13 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL MONTOUR 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 100 AM EDT for
central Pennsylvania.

LAT...LON 4078 7638 4083 7641 4083 7650 4085 7650
      4090 7653 4100 7637 4096 7621 4095 7621
      4090 7604 4091 7600 4081 7589 4073 7576
TIME...MOT...LOC 0027Z 301DEG 34KT 4089 7611 4090 7648 

$$

PAC037-107-140100-
/O.CON.KCTP.SV.W.0272.000000T0000Z-210914T0100Z/
Schuylkill PA-Columbia PA-
827 PM EDT Mon Sep 13 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM EDT
FOR NORTHEASTERN SCHUYLKILL AND SOUTHEASTERN COLUMBIA COUNTIES...

At 827 PM EDT, severe thunderstorms were located along a line
extending from Sheppton to near Knoebels Grove, moving southeast at
40 mph.

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

SOURCE...Law enforcement.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Tamaqua, Shenandoah, Mahanoy City, Frackville, Ashland, Mcadoo,
Girardville, Hometown, Tuscarora, Oneida, Grier City-Park Crest,
Altamont, Englewood, Delano, Nuremburg, Aristes, Numidia, Sheppton,
Brandonville and Wilburton Number One.

This includes Interstate 81 from mile markers 123 to 139.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
State College PA.

Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 4078 7638 4083 7641 4083 7650 4085 7650
      4090 7653 4100 7637 4096 7621 4095 7621
      4090 7604 4091 7600 4081 7589 4073 7576
TIME...MOT...LOC 0027Z 301DEG 34KT 4089 7611 4090 7648 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH

$$

Banghoff

267 
WWUS51 KCTP 140049
SVSCTP

Severe Weather Statement
National Weather Service State College PA
849 PM EDT Mon Sep 13 2021

PAC037-107-140059-
/O.CAN.KCTP.SV.W.0272.000000T0000Z-210914T0100Z/
Schuylkill PA-Columbia PA-
849 PM EDT Mon Sep 13 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN SCHUYLKILL AND
SOUTHEASTERN COLUMBIA COUNTIES IS CANCELLED...
    
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning has
been cancelled.

A Severe Thunderstorm Watch remains in effect until 100 AM EDT for
central Pennsylvania.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
State College PA.

LAT...LON 4078 7638 4083 7641 4083 7650 4085 7650
      4090 7653 4100 7637 4096 7621 4095 7621
      4090 7604 4091 7600 4081 7589 4073 7576
TIME...MOT...LOC 0047Z 294DEG 34KT 4081 7588 4082 7625 

$$

Banghoff

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.