Alert archive / Ohio / Severe Thunderstorm Watches in 2015
Severe Thunderstorm Watch 290
The Storm Prediction Center issued this severe thunderstorm watch at Jun 12, 2015, 1:14 PM EDT for 65 counties in Ohio; 22 counties in Pennsylvania; 9 counties in West Virginia. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 12, 2015, 1:14 PM EDT (17:14 UTC)
- Expired
- Jun 12, 2015, 9:00 PM EDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
All 96 counties
Ashland County, OH, Ashtabula County, OH, Auglaize County, OH, Belmont County, OH, Butler County, OH, Carroll County, OH, Champaign County, OH, Clark County, OH, Clinton County, OH, Columbiana County, OH, Coshocton County, OH, Crawford County, OH, Cuyahoga County, OH, Darke County, OH, Delaware County, OH, Erie County, OH, Fairfield County, OH, Fayette County, OH, Franklin County, OH, Geauga County, OH, Greene County, OH, Guernsey County, OH, Hancock County, OH, Hardin County, OH, Harrison County, OH, Hocking County, OH, Holmes County, OH, Huron County, OH, Jefferson County, OH, Knox County, OH, Lake County, OH, Licking County, OH, Logan County, OH, Lorain County, OH, Lucas County, OH, Madison County, OH, Mahoning County, OH, Marion County, OH, Medina County, OH, Mercer County, OH, Miami County, OH, Monroe County, OH, Montgomery County, OH, Morgan County, OH, Morrow County, OH, Muskingum County, OH, Noble County, OH, Ottawa County, OH, Perry County, OH, Pickaway County, OH, Portage County, OH, Preble County, OH, Richland County, OH, Sandusky County, OH, Seneca County, OH, Shelby County, OH, Stark County, OH, Summit County, OH, Trumbull County, OH, Tuscarawas County, OH, Union County, OH, Warren County, OH, Wayne County, OH, Wood County, OH, Wyandot County, OH, Allegheny County, PA, Armstrong County, PA, Beaver County, PA, Butler County, PA, Cameron County, PA, Clarion County, PA, Clearfield County, PA, Clinton County, PA, Crawford County, PA, Elk County, PA, Erie County, PA, Fayette County, PA, Forest County, PA, Greene County, PA, Indiana County, PA, Jefferson County, PA, Lawrence County, PA, Lycoming County, PA, Mercer County, PA, Venango County, PA, Washington County, PA, Westmoreland County, PA, Brooke County, WV, Hancock County, WV, Marion County, WV, Marshall County, WV, Monongalia County, WV, Ohio County, WV, Preston County, WV, Tucker County, WV, Wetzel County, WV
The radar
The Cleveland radar (KCLE), 58 km from the middle of the area, began a volume at 17:13 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
- 10%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 50%
- One or more gusts of 65 knots or more
- 5%
- Ten or more severe hail reports
- 20%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 80%
Warnings issued inside it
36 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 1:38 PM EDT | Severe Thunderstorm Warning | CLE | Hancock, Seneca, Wood | 52 min |
| Jun 12, 1:49 PM EDT | Severe Thunderstorm Warning | CLE | Hancock | 26 min |
| Jun 12, 1:54 PM EDT | Severe Thunderstorm Warning | ILN | Champaign | 21 min |
| Jun 12, 2:18 PM EDT | Severe Thunderstorm Warning | CLE | Hancock, Wyandot | 27 min |
| Jun 12, 2:25 PM EDT | Severe Thunderstorm Warning | CLE | Seneca | 35 min |
| Jun 12, 2:38 PM EDT | Severe Thunderstorm Warning | CLE | Erie, Huron | 39 min |
| Jun 12, 3:15 PM EDT | Severe Thunderstorm Warning | CLE | Lorain | 23 min |
| Jun 12, 3:28 PM EDT | Severe Thunderstorm Warning | CLE | Erie | 47 min |
| Jun 12, 3:30 PM EDT | Severe Thunderstorm Warning | ILN | Butler, Greene, Montgomery, Preble, Warren | 45 min |
| Jun 12, 3:55 PM EDT | Severe Thunderstorm Warning | ILN | Clinton, Greene, Warren | 36 min |
| Jun 12, 3:57 PM EDT | Severe Thunderstorm Warning | CLE | Portage, Summit | 48 min |
| Jun 12, 4:10 PM EDT | Severe Thunderstorm Warning | CLE | Crawford, Erie | 47 min |
| Jun 12, 4:27 PM EDT | Severe Thunderstorm Warning | CLE | Stark | 33 min |
| Jun 12, 4:32 PM EDT | Severe Thunderstorm Warning | PBZ | Carroll, Columbiana, Tuscarawas | 28 min |
| Jun 12, 4:39 PM EDT | Severe Thunderstorm Warning | ILN | Fairfield, Fayette, Franklin, Madison, Pickaway | 29 min |
| Jun 12, 4:39 PM EDT | Severe Thunderstorm Warning | PBZ | Coshocton, Guernsey, Muskingum, Tuscarawas | 51 min |
| Jun 12, 4:40 PM EDT | Severe Thunderstorm Warning | CLE | Mahoning, Trumbull | 50 min |
| Jun 12, 4:59 PM EDT | Severe Thunderstorm Warning | PBZ | Carroll, Columbiana, Jefferson, Tuscarawas | 31 min |
| Jun 12, 5:22 PM EDT | Severe Thunderstorm Warning | PBZ | Butler, Lawrence, Mercer, Venango | 23 min |
| Jun 12, 5:30 PM EDT | Severe Thunderstorm Warning | PBZ | Columbiana | 30 min |
| Jun 12, 5:35 PM EDT | Severe Thunderstorm Warning | PBZ | Forest | 25 min |
| Jun 12, 5:36 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clearfield, Elk, McKean, Potter | 69 min |
| Jun 12, 5:44 PM EDT | Severe Thunderstorm Warning | PBZ | Belmont, Harrison, Jefferson | 31 min |
| Jun 12, 5:45 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Butler, Clarion, Forest, Venango | 30 min |
| Jun 12, 5:58 PM EDT | Severe Thunderstorm Warning | PBZ | Allegheny, Armstrong, Beaver, Butler, Clarion, Indiana and 3 more | 47 min |
| Jun 12, 6:15 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Clarion, Forest, Jefferson | 45 min |
| Jun 12, 6:32 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Cambria, Cameron, Centre, Clearfield, Clinton and 1 more | 73 min |
| Jun 12, 6:40 PM EDT | Severe Thunderstorm Warning | CTP | Cameron, Clinton, Lycoming, Potter, Tioga | 80 min |
| Jun 12, 6:45 PM EDT | Severe Thunderstorm Warning | PBZ | Armstrong, Clarion, Indiana, Jefferson | 30 min |
| Jun 12, 7:17 PM EDT | Severe Thunderstorm Warning | PBZ | Marion, Wetzel | 28 min |
| Jun 12, 7:23 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette, Westmoreland | 52 min |
| Jun 12, 7:42 PM EDT | Severe Thunderstorm Warning | CTP | Blair, Centre, Clearfield, Clinton, Huntingdon, Juniata and 4 more | 63 min |
| Jun 12, 7:42 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 33 min |
| Jun 12, 8:01 PM EDT | Severe Thunderstorm Warning | CTP | Columbia, Lycoming, Sullivan, Tioga | 59 min |
| Jun 12, 8:19 PM EDT | Severe Thunderstorm Warning | PBZ | Fayette | 56 min |
| Jun 12, 8:43 PM EDT | Severe Thunderstorm Warning | CTP | Centre, Clinton, Columbia, Juniata, Lycoming, Mifflin and 4 more | 77 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
Detroit, MI (KDTX), launched 12:00Z, 5.2 hours before the alert went out and 201 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 571 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 370 m²/s²
- 0-3 km storm-relative helicity
- 335 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.8
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 12:52 PM EDT | Mesoscale Discussion | SPC | Allen, Ashland, Ashtabula, Auglaize, Carroll, Champaign and 40 more | 113 min |
| Jun 12, 4:21 PM EDT | Mesoscale Discussion | SPC | Athens, Belmont, Carroll, Columbiana, Guernsey, Harrison and 9 more | 84 min |
| Jun 12, 4:32 PM EDT | Severe Thunderstorm Watch | SPC | Allen, Paulding, Putnam, Van Wert | 4 hr |
| Jun 12, 6:53 PM EDT | Mesoscale Discussion | SPC | Allen, Ashland, Athens, Auglaize, Belmont, Butler and 47 more | 97 min |
| Jun 12, 2:03 PM EDT | Mesoscale Discussion | SPC | Adams, Carbon, Columbia, Cumberland, Dauphin, Franklin and 14 more | 87 min |
| Jun 12, 2:54 PM EDT | Severe Thunderstorm Watch | SPC | McKean, Potter, Tioga, Warren | 6 hr |
| Jun 12, 7:25 PM EDT | Severe Thunderstorm Watch | SPC | Bedford, Blair, Bradford, Cambria, Centre, Columbia and 17 more | 4 hr |
Nearby
Severe Thunderstorm Watches in Ohio, 2015Severe Thunderstorm Watches in Pennsylvania, 2015Severe Thunderstorm Watches in West Virginia, 2015Every severe thunderstorm watch in 2015
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.