Alert archive / Pennsylvania / Tornado Warnings in 2023

Tornado Warning 13, NWS State College, PA

August 7, 2023Lycoming County, Sullivan County, Tioga County, Pennsylvania

NWS State College, PA issued this tornado warning at Aug 7, 2023, 3:18 PM EDT for Lycoming County, Sullivan County, Tioga County, Pennsylvania. It was in force for 27 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: Aug 7, 2023, 3:18 PM EDT (19:18 UTC)
Expired: Aug 7, 2023, 3:45 PM EDT
In force: 27 min
Issued by: NWS State College, PA
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Lycoming County, PA, Sullivan County, PA, Tioga County, PA

The radar

The Binghamton radar (KBGM), 102 km from the middle of the area, began a volume at 19:17 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
Aug 7, 1:20 PM EDT	Tornado Watch	SPC	11 hr

The nearest sounding before it

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 7.3 hours before the alert went out and 213 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: 112 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 692 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 52 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

853 
WFUS51 KCTP 071918
TORCTP
PAC081-113-117-071945-
/O.NEW.KCTP.TO.W.0013.230807T1918Z-230807T1945Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service State College PA
318 PM EDT Mon Aug 7 2023

The National Weather Service in State College PA has issued a

* Tornado Warning for...
  North central Lycoming County in north central Pennsylvania...
  Northwestern Sullivan County in north central Pennsylvania...
  Southeastern Tioga County in north central Pennsylvania...

* Until 345 PM EDT.
    
* At 318 PM EDT, a severe thunderstorm capable of producing a tornado
  was located over Shunk, moving northeast at 30 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Shunk around 320 PM EDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4160 7687 4157 7658 4149 7672 4143 7707
      4159 7710 4165 7694 4165 7689
TIME...MOT...LOC 1918Z 230DEG 26KT 4154 7679 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

Colbert

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 7, 1:31 PM EDT	Severe Thunderstorm Warning	CTP	Franklin, Fulton	45 min
Aug 7, 1:40 PM EDT	Special Weather Statement	CTP	Somerset	35 min
Aug 7, 1:49 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Centre, Huntingdon	41 min
Aug 7, 2:01 PM EDT	Tornado Warning	CTP	Centre, Huntingdon	29 min
Aug 7, 2:04 PM EDT	Severe Thunderstorm Warning	CTP	Franklin, Fulton, Huntingdon	41 min
Aug 7, 2:13 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Somerset	47 min
Aug 7, 2:14 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Franklin	61 min
Aug 7, 2:24 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Huntingdon, Mifflin	51 min
Aug 7, 2:57 PM EDT	Tornado Warning	CTP	Lycoming	33 min
Aug 7, 2:58 PM EDT	Severe Thunderstorm Warning	CTP	Bedford, Franklin, Fulton	47 min
Aug 7, 3:02 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Mifflin, Snyder, Union	43 min
Aug 7, 3:11 PM EDT	Severe Thunderstorm Warning	CTP	Adams	64 min
Aug 7, 3:29 PM EDT	Areal Flood Advisory	CTP	Lycoming, Sullivan	91 min
Aug 7, 3:31 PM EDT	Special Weather Statement	CTP	Sullivan	29 min
Aug 7, 3:36 PM EDT	Severe Thunderstorm Warning Considerable damage threat	CTP	Franklin, Fulton	39 min
Aug 7, 3:45 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Mifflin, Snyder, Union	45 min
Aug 7, 3:46 PM EDT	Tornado Warning	CTP	Lycoming, Sullivan	29 min
Aug 7, 3:55 PM EDT	Areal Flood Advisory	CTP	Mifflin, Snyder, Union	2 hr
Aug 7, 4:05 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Cumberland, Franklin	70 min
Aug 7, 4:06 PM EDT	Severe Thunderstorm Warning	CTP	Montour, Northumberland, Snyder, Union	39 min
Aug 7, 4:16 PM EDT	Tornado Warning	CTP	Sullivan	44 min
Aug 7, 4:34 PM EDT	Areal Flood Advisory	CTP	Montour, Northumberland, Snyder, Union	3 hr
Aug 7, 4:39 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Montour, Northumberland	51 min
Aug 7, 4:40 PM EDT	Severe Thunderstorm Warning	CTP	York	35 min
Aug 7, 4:52 PM EDT	Special Weather Statement	CTP	Lycoming	38 min
Aug 7, 5:00 PM EDT	Tornado Warning	CTP	York	30 min
Aug 7, 5:10 PM EDT	Severe Thunderstorm Warning Considerable damage threat	CTP	York	52 min
Aug 7, 5:11 PM EDT	Areal Flood Advisory	CTP	Lycoming, Sullivan, Tioga	2 hr
Aug 7, 5:30 PM EDT	Severe Thunderstorm Warning Considerable damage threat	CTP	Lancaster	45 min
Aug 7, 5:33 PM EDT	Areal Flood Advisory	CTP	Columbia, Montour, Northumberland	2 hr
Aug 7, 5:39 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Schuylkill	51 min
Aug 7, 5:53 PM EDT	Special Weather Statement	CTP	Lebanon, Schuylkill	67 min
Aug 7, 6:15 PM EDT	Special Weather Statement	CTP	Lancaster	30 min

Nearby

Tornado Warnings in Pennsylvania, 2023 Every tornado warning in 2023 Tornadoes in 2023

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.