Alert archive / Ohio / Tornado Watches in 2010
Tornado Watch 270
The Storm Prediction Center issued this tornado watch at Jun 6, 2010, 2:03 AM EDT for 4 states. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 6, 2010, 2:03 AM EDT (06:03 UTC)
- Expired
- Jun 6, 2010, 9:00 AM EDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1 in
- Strongest gust expected
- 60 kt
All 86 counties
Cattaraugus County, NY, Chautauqua County, NY, Ashland County, OH, Ashtabula County, OH, Auglaize County, OH, Belmont County, OH, Carroll County, OH, Champaign County, OH, Clark 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, 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, 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, Wayne County, OH, Wood County, OH, Wyandot County, OH, Allegheny County, PA, Armstrong County, PA, Beaver County, PA, Butler County, PA, Cambria County, PA, Cameron County, PA, Clarion County, PA, Clearfield County, PA, Crawford County, PA, Elk County, PA, Erie County, PA, Forest County, PA, Indiana County, PA, Jefferson County, PA, Lawrence County, PA, McKean County, PA, Mercer County, PA, Venango County, PA, Warren County, PA, Washington County, PA, Westmoreland County, PA, Brooke County, WV, Hancock County, WV, Ohio County, WV
The radar
The Cleveland radar (KCLE), 45 km from the middle of the area, began a volume at 06:06 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
- 50%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 40%
- 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
- 90%
Warnings issued inside it
34 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 6, 2:06 AM EDT | Severe Thunderstorm Warning | CTP | Cameron, Elk, McKean, Potter, Warren | 69 min |
| Jun 6, 2:13 AM EDT | Flash Flood Warning | CLE | Erie | 5 hr |
| Jun 6, 2:22 AM EDT | Flash Flood Warning | CLE | Lucas, Wood | 5 hr |
| Jun 6, 2:26 AM EDT | Tornado Warning | CLE | Lucas, Wood | 64 min |
| Jun 6, 2:37 AM EDT | Severe Thunderstorm Warning | BUF | Chautauqua | 53 min |
| Jun 6, 2:40 AM EDT | Severe Thunderstorm Warning | CLE | Erie | 50 min |
| Jun 6, 2:46 AM EDT | Tornado Warning | CLE | Ottawa | 44 min |
| Jun 6, 2:57 AM EDT | Severe Thunderstorm Warning | CLE | Erie, Huron, Sandusky, Seneca | 48 min |
| Jun 6, 3:26 AM EDT | Tornado Warning | BUF | Cattaraugus, Chautauqua | 34 min |
| Jun 6, 3:26 AM EDT | Tornado Warning | CLE | Erie, Ottawa | 49 min |
| Jun 6, 3:38 AM EDT | Severe Thunderstorm Warning | ILN | Auglaize, Mercer, Shelby | 37 min |
| Jun 6, 4:03 AM EDT | Severe Thunderstorm Warning | BUF | Allegany, Cattaraugus, Livingston | 57 min |
| Jun 6, 4:12 AM EDT | Tornado Warning | BUF | Allegany, Cattaraugus | 21 min |
| Jun 6, 4:21 AM EDT | Severe Thunderstorm Warning | CLE | Erie, Lorain | 39 min |
| Jun 6, 4:30 AM EDT | Severe Thunderstorm Warning | CLE | Ashtabula, Cuyahoga, Geauga, Lake | 45 min |
| Jun 6, 4:54 AM EDT | Severe Thunderstorm Warning | CLE | Erie, Huron, Lorain, Sandusky, Seneca | 66 min |
| Jun 6, 5:12 AM EDT | Severe Thunderstorm Warning | CLE | Ashtabula, Cuyahoga, Geauga, Lake, Portage, Trumbull | 63 min |
| Jun 6, 5:24 AM EDT | Tornado Warning | CLE | Ashtabula, Geauga, Trumbull | 66 min |
| Jun 6, 5:33 AM EDT | Severe Thunderstorm Warning | ILN | Delaware, Franklin, Union | 29 min |
| Jun 6, 5:55 AM EDT | Tornado Warning | CLE | Crawford | 65 min |
| Jun 6, 6:16 AM EDT | Severe Thunderstorm Warning | CTP | McKean, Warren | 44 min |
| Jun 6, 6:25 AM EDT | Tornado Warning | CLE | Erie | 12 min |
| Jun 6, 6:33 AM EDT | Tornado Warning | CTP | McKean, Warren | 42 min |
| Jun 6, 6:40 AM EDT | Severe Thunderstorm Warning | CTP | Elk, McKean, Warren | 65 min |
| Jun 6, 7:12 AM EDT | Severe Thunderstorm Warning | PBZ | Clarion, Forest, Jefferson, Mercer, Venango | 48 min |
| Jun 6, 7:15 AM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter | 45 min |
| Jun 6, 7:19 AM EDT | Tornado Warning | PBZ | Clarion, Forest, Jefferson, Mercer, Venango | 41 min |
| Jun 6, 7:36 AM EDT | Severe Thunderstorm Warning | PBZ | Belmont, Guernsey, Harrison, Jefferson, Tuscarawas | 24 min |
| Jun 6, 7:53 AM EDT | Severe Thunderstorm Warning | CTP | McKean, Potter, Tioga | 67 min |
| Jun 6, 7:55 AM EDT | Severe Thunderstorm Warning | PBZ | Belmont, Guernsey, Monroe, Muskingum, Noble | 65 min |
| Jun 6, 8:02 AM EDT | Tornado Warning | PBZ | Clarion, Forest, Jefferson | 28 min |
| Jun 6, 8:39 AM EDT | Severe Thunderstorm Warning | ILN | Fairfield, Hocking, Pickaway | 36 min |
| Jun 6, 8:42 AM EDT | Tornado Warning | ILN | Fairfield, Hocking, Pickaway | 33 min |
| Jun 6, 8:54 AM EDT | Severe Thunderstorm Warning | PBZ | Indiana, Jefferson | 21 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 00:00Z, 6.1 hours before the alert went out and 193 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
- 586 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 689 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 80 m²/s²
- 0-3 km storm-relative helicity
- 90 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.4
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 6, 3:38 AM EDT | Mesoscale Discussion | SPC | Allegany, Cattaraugus, Chautauqua, Chemung, Erie, Genesee and 9 more | 2 hr |
| Jun 6, 7:05 AM EDT | Mesoscale Discussion | SPC | Allegany, Broome, Cattaraugus, Chemung, Schuyler, Steuben and 1 more | 115 min |
| Jun 6, 7:51 AM EDT | Tornado Watch | SPC | Broome, Chemung, Delaware, Steuben, Sullivan, Tioga | 7 hr |
| Jun 6, 10:25 AM EDT | Mesoscale Discussion | SPC | Bronx, Columbia, Dutchess, Kings, Nassau, New York and 9 more | 65 min |
| Jun 6, 11:08 AM EDT | Tornado Watch | SPC | Albany, Bronx, Columbia, Dutchess, Greene, Kings and 15 more | 8 hr |
| Jun 6, 2:38 PM EDT | Mesoscale Discussion | SPC | Bronx, Columbia, Dutchess, Kings, Nassau, New York and 9 more | 67 min |
| Jun 5, 9:47 PM EDT | Mesoscale Discussion | SPC | Allen, Defiance, Fulton, Hancock, Henry, Mercer and 5 more | 58 min |
| Jun 5, 10:11 PM EDT | Tornado Watch | SPC | Allen, Auglaize, Champaign, Clark, Darke, Defiance and 21 more | 7 hr |
| Jun 6, 12:17 AM EDT | Mesoscale Discussion | SPC | Allen, Auglaize, Darke, Defiance, Fulton, Hancock and 12 more | 118 min |
| Jun 6, 12:30 AM EDT | Mesoscale Discussion | SPC | Ashland, Ashtabula, Crawford, Cuyahoga, Delaware, Erie and 14 more | 3 hr |
| Jun 6, 11:42 AM EDT | Mesoscale Discussion | SPC | Berkeley, Jefferson, Morgan | 63 min |
| Jun 6, 12:40 PM EDT | Tornado Watch | SPC | Berkeley, Hampshire, Hardy, Jefferson, Morgan, Pendleton | 6 hr |
Nearby
Tornado Watches in Ohio, 2010Tornado Watches in Pennsylvania, 2010Tornado Watches in West Virginia, 2010Every tornado watch in 2010
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.