Alert archive / Pennsylvania / Tornado Watches in 2024
Tornado Watch 482
The Storm Prediction Center issued this tornado watch at Jun 29, 2024, 1:11 PM EDT for 18 counties in Ohio; 50 counties in Pennsylvania; 7 counties in West Virginia. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 29, 2024, 1:11 PM EDT (17:11 UTC)
- Expired
- Jun 29, 2024, 8:00 PM EDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
All 75 counties
Belmont County, OH, Carroll County, OH, Columbiana County, OH, Coshocton County, OH, Guernsey County, OH, Harrison County, OH, Holmes County, OH, Jefferson County, OH, Mahoning County, OH, Monroe County, OH, Muskingum County, OH, Noble County, OH, Portage County, OH, Stark County, OH, Summit County, OH, Trumbull County, OH, Tuscarawas County, OH, Wayne County, OH, Adams County, PA, Allegheny County, PA, Armstrong County, PA, Beaver County, PA, Bedford County, PA, Blair County, PA, Butler County, PA, Cambria County, PA, Cameron County, PA, Centre County, PA, Clarion County, PA, Clearfield County, PA, Clinton County, PA, Columbia County, PA, Crawford County, PA, Cumberland County, PA, Dauphin County, PA, Elk County, PA, Erie County, PA, Fayette County, PA, Forest County, PA, Franklin County, PA, Fulton County, PA, Greene County, PA, Huntingdon County, PA, Indiana County, PA, Jefferson County, PA, Juniata County, PA, Lancaster County, PA, Lawrence County, PA, Lebanon County, PA, Lycoming County, PA, McKean County, PA, Mercer County, PA, Mifflin County, PA, Montour County, PA, Northumberland County, PA, Perry County, PA, Potter County, PA, Schuylkill County, PA, Snyder County, PA, Somerset County, PA, Sullivan County, PA, Tioga County, PA, Union County, PA, Venango County, PA, Warren County, PA, Washington County, PA, Westmoreland County, PA, York County, PA, Brooke County, WV, Hancock County, WV, Marion County, WV, Marshall County, WV, Monongalia County, WV, Ohio County, WV, Wetzel County, WV
The radar
The Pittsburgh radar (KPBZ), 44 km from the middle of the area, began a volume at 17:11 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 SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 40%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 70%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 10%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 80%
Warnings issued inside it
17 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 2:38 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Westmoreland | 52 min |
| Jun 29, 3:05 PM EDT | Severe Thunderstorm Warning | PBZ | Marion, Monongalia, Preston | 40 min |
| Jun 29, 3:32 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Centre, Clinton, Huntingdon | 43 min |
| Jun 29, 3:42 PM EDT | Severe Thunderstorm Warning | PBZ | Marion, Monongalia, Preston | 48 min |
| Jun 29, 3:51 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Huntingdon, Mifflin | 39 min |
| Jun 29, 3:58 PM EDT | Tornado Warning | CTP | Huntingdon | 6 min |
| Jun 29, 4:03 PM EDT | Tornado Warning | CTP | Huntingdon | 27 min |
| Jun 29, 4:13 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Huntingdon, Mifflin, Snyder, Union | 47 min |
| Jun 29, 4:28 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Huntingdon, Juniata, Mifflin | 47 min |
| Jun 29, 4:59 PM EDT | Severe Thunderstorm Warning | CTP | Juniata, Mifflin, Snyder | 16 min |
| Jun 29, 5:14 PM EDT | Severe Thunderstorm Warning | CTP | Dauphin, Juniata, Northumberland, Perry, Schuylkill, Snyder | 46 min |
| Jun 29, 5:28 PM EDT | Tornado Warning | CTP | Juniata, Northumberland, Snyder | 17 min |
| Jun 29, 5:40 PM EDT | Severe Thunderstorm Warning | CTP | Cumberland, Franklin, Huntingdon, Perry | 50 min |
| Jun 29, 5:57 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Dauphin, Lebanon, Northumberland, Perry, Schuylkill | 48 min |
| Jun 29, 6:23 PM EDT | Tornado Warning | CTP | Cumberland | 25 min |
| Jun 29, 6:44 PM EDT | Severe Thunderstorm Warning | CTP | Adams, Cumberland, Dauphin, York | 46 min |
| Jun 29, 6:45 PM EDT | Severe Thunderstorm Warning | CTP | Schuylkill | 15 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Pittsburgh, PA (KPIT), launched 12:00Z, 5.2 hours before the alert went out and 52 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.
- Mixed-layer CAPE
- 14 J/kg
- Mixed-layer CIN
- -154 J/kg
- Mixed-layer LCL
- 1262 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 372 m²/s²
- 0-3 km storm-relative helicity
- 390 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 12:03 PM EDT | Mesoscale Discussion | SPC | Ashland, Athens, Belmont, Carroll, Champaign, Clark and 53 more | 117 min |
| Jun 29, 5:05 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Brown, Butler, Clermont, Clinton, Fayette and 9 more | 5 hr |
| Jun 29, 5:30 PM EDT | Mesoscale Discussion | SPC | Adams, Brown, Butler, Clermont, Clinton, Hamilton and 6 more | 90 min |
| Jun 29, 4:09 PM EDT | Mesoscale Discussion | SPC | Adams, Bedford, Blair, Cambria, Centre, Clinton and 18 more | 96 min |
| Jun 29, 5:13 PM EDT | Severe Thunderstorm Watch | SPC | Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more | 4 hr |
| Jun 29, 6:38 PM EDT | Mesoscale Discussion | SPC | Berks, Bucks, Chester, Delaware, Lancaster, Lebanon and 6 more | 97 min |
| Jun 29, 3:30 PM EDT | Mesoscale Discussion | SPC | Barbour, Berkeley, Doddridge, Gilmer, Grant, Hampshire and 15 more | 90 min |
| Jun 29, 4:21 PM EDT | Severe Thunderstorm Watch | SPC | Barbour, Berkeley, Braxton, Calhoun, Doddridge, Gilmer and 19 more | 6 hr |
| Jun 29, 7:30 PM EDT | Mesoscale Discussion | SPC | Barbour, Berkeley, Braxton, Calhoun, Gilmer, Grant and 12 more | 90 min |
Nearby
Tornado Watches in Pennsylvania, 2024Tornado Watches in Ohio, 2024Tornado Watches in West Virginia, 2024Every tornado watch in 2024
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.