Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 265, NWS State College, PA

September 8, 2021Lycoming County, Sullivan County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Sep 8, 2021, 3:27 PM EDT for Lycoming County, Sullivan County, Pennsylvania. It was in force for 33 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
Sep 8, 2021, 3:27 PM EDT (19:27 UTC)
Expired
Sep 8, 2021, 4:00 PM EDT
In force
33 min
Issued by
NWS State College, PA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Lycoming County, PA, Sullivan County, PA

The radar

The Binghamton radar (KBGM), 96 km from the middle of the area, began a volume at 19:29 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 nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 7.5 hours before the alert went out and 233 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, Buffalo Intl Airport, NY at 12:00Z on 2021-09-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 10 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, Buffalo Intl Airport, NY at 12:00Z on 2021-09-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 92 square meters per square second.1939587897Sfc1 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
10 J/kg
Mixed-layer CIN
-113 J/kg
Mixed-layer LCL
619 m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
92 m²/s²
0-3 km storm-relative helicity
110 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted.

663 
WUUS51 KCTP 081927
SVRCTP
PAC081-113-082030-
/O.NEW.KCTP.SV.W.0265.210908T1927Z-210908T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service State College PA
327 PM EDT Wed Sep 8 2021

The National Weather Service in State College PA has issued a

* Severe Thunderstorm Warning for...
  Northeastern Lycoming County in north central Pennsylvania...
  Sullivan County in north central Pennsylvania...

* Until 430 PM EDT.

* At 326 PM EDT, severe thunderstorms were located along a line
  extending from near Shunk to near Kettle Creek Gorge to near
  Barbours, moving east at 40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Kettle Creek Gorge, Lincoln Falls, Barbours, Shunk, Loyalsockville,
  Dushore, Laporte, Forksville, Eagles Mere and Hillsgrove.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4142 7627 4131 7697 4144 7688 4159 7689
      4160 7687 4158 7676 4154 7622
TIME...MOT...LOC 1926Z 250DEG 35KT 4157 7681 4146 7678 4137 7686 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Banghoff
2 follow-up statements
885 
WWUS51 KCTP 081949
SVSCTP

Severe Weather Statement
National Weather Service State College PA
349 PM EDT Wed Sep 8 2021

PAC081-081958-
/O.CAN.KCTP.SV.W.0265.000000T0000Z-210908T2030Z/
Lycoming PA-
349 PM EDT Wed Sep 8 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN LYCOMING COUNTY
IS CANCELLED...

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

LAT...LON 4153 7622 4142 7670 4157 7667 4154 7622
TIME...MOT...LOC 1948Z 249DEG 35KT 4164 7656 4153 7653 4147 7663 

$$

PAC113-082030-
/O.CON.KCTP.SV.W.0265.000000T0000Z-210908T2030Z/
Sullivan PA-
349 PM EDT Wed Sep 8 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR NORTHERN SULLIVAN COUNTY...

At 348 PM EDT, severe thunderstorms were located along a line
extending from near Franklindale to near Overton to near Lincoln
Falls, moving east at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Kettle Creek Gorge, Lincoln Falls, Dushore, Forksville and
Hillsgrove.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4153 7622 4142 7670 4157 7667 4154 7622
TIME...MOT...LOC 1948Z 249DEG 35KT 4164 7656 4153 7653 4147 7663 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Banghoff
627 
WWUS51 KCTP 082000
SVSCTP

Severe Weather Statement
National Weather Service State College PA
400 PM EDT Wed Sep 8 2021

PAC113-082010-
/O.CAN.KCTP.SV.W.0265.000000T0000Z-210908T2030Z/
Sullivan PA-
400 PM EDT Wed Sep 8 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN SULLIVAN COUNTY IS
CANCELLED...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning has been cancelled.

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 4153 7622 4142 7670 4157 7667 4154 7622
TIME...MOT...LOC 1957Z 250DEG 35KT 4167 7644 4156 7641 4150 7651 

$$

Banghoff

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 8, 3:07 PM EDTSpecial Weather StatementCTPLycoming23 min
Sep 8, 3:12 PM EDTSpecial Weather StatementCTPCentre33 min
Sep 8, 3:29 PM EDTSpecial Weather StatementCTPBlair31 min
Sep 8, 3:59 PM EDTSpecial Weather StatementCTPHuntingdon31 min
Sep 8, 4:29 PM EDTSpecial Weather StatementCTPMifflin46 min
Sep 8, 4:36 PM EDTSevere Thunderstorm WarningCTPJuniata, Mifflin, Snyder39 min
Sep 8, 5:11 PM EDTSevere Thunderstorm WarningCTPJuniata, Northumberland, Snyder49 min
Sep 8, 5:57 PM EDTSevere Thunderstorm WarningCTPColumbia, Northumberland, Schuylkill37 min
Sep 8, 6:21 PM EDTFlash Flood WatchCTPAdams, Lancaster, York7 hr
Sep 8, 6:36 PM EDTSpecial Weather StatementCTPColumbia39 min
Sep 8, 7:18 PM EDTSpecial Weather StatementCTPCarbon27 min
Sep 8, 7:43 PM EDTSpecial Weather StatementCTPSchuylkill17 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.