Alert archive / Ohio / Tornado Watches in 2013

Tornado Watch 301

June 12, 201330 counties in Ohio; 6 counties in Pennsylvania; 16 counties in West Virginia

The Storm Prediction Center issued this tornado watch at Jun 12, 2013, 6:28 PM EDT for 30 counties in Ohio; 6 counties in Pennsylvania; 16 counties in West Virginia. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Jun 12, 2013, 6:28 PM EDT (22:28 UTC)
Expired: Jun 13, 2013, 12:00 AM EDT
In force: 6 hr
Issued by: the Storm Prediction Center
Largest hail expected: 2 in
Strongest gust expected: 70 kt

All 52 counties

Ashland County, OH, Belmont County, OH, Carroll County, OH, Columbiana County, OH, Coshocton County, OH, Delaware County, OH, Fairfield County, OH, Franklin County, OH, Guernsey County, OH, Harrison County, OH, Holmes County, OH, Jefferson County, OH, Knox County, OH, Licking County, OH, Lorain County, OH, Madison County, OH, Medina County, OH, Monroe County, OH, Morgan County, OH, Morrow County, OH, Muskingum County, OH, Noble County, OH, Perry County, OH, Richland County, OH, Stark County, OH, Summit County, OH, Tuscarawas County, OH, Union County, OH, Washington County, OH, Wayne County, OH, Allegheny County, PA, Beaver County, PA, Fayette County, PA, Greene County, PA, Washington County, PA, Westmoreland County, PA, Barbour County, WV, Brooke County, WV, Doddridge County, WV, Hancock County, WV, Harrison County, WV, Marion County, WV, Marshall County, WV, Monongalia County, WV, Ohio County, WV, Pleasants County, WV, Preston County, WV, Ritchie County, WV, Taylor County, WV, Tucker County, WV, Tyler County, WV, Wetzel County, WV

The radar

The Cleveland radar (KCLE), 114 km from the middle of the area, began a volume at 22:28 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: 30%
Ten or more severe wind reports: 70%
One or more gusts of 65 knots or more: 40%
Ten or more severe hail reports: 70%
One or more hailstones of 2 inches or more: 40%
Six or more combined severe hail and wind reports: 90%

Warnings issued inside it

38 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Jun 12, 6:30 PM EDT	Tornado Warning	CLE	Crawford, Huron, Richland, Seneca	45 min
Jun 12, 6:57 PM EDT	Severe Thunderstorm Warning	CLE	Holmes, Knox	63 min
Jun 12, 6:58 PM EDT	Severe Thunderstorm Warning	PBZ	Coshocton, Guernsey, Tuscarawas	47 min
Jun 12, 7:13 PM EDT	Severe Thunderstorm Warning	CLE	Ashland, Richland	62 min
Jun 12, 7:20 PM EDT	Tornado Warning	CLE	Holmes	40 min
Jun 12, 7:29 PM EDT	Tornado Warning	PBZ	Coshocton, Tuscarawas	31 min
Jun 12, 8:06 PM EDT	Severe Thunderstorm Warning	PBZ	Coshocton, Guernsey, Tuscarawas	39 min
Jun 12, 8:17 PM EDT	Severe Thunderstorm Warning	CLE	Morrow	58 min
Jun 12, 8:23 PM EDT	Severe Thunderstorm Warning	CLE	Crawford, Richland	67 min
Jun 12, 8:29 PM EDT	Tornado Warning	ILN	Delaware	31 min
Jun 12, 8:30 PM EDT	Tornado Warning	CLE	Morrow	60 min
Jun 12, 8:48 PM EDT	Tornado Warning	PBZ	Coshocton, Guernsey, Harrison, Tuscarawas	27 min
Jun 12, 9:01 PM EDT	Severe Thunderstorm Warning	CLE	Knox	59 min
Jun 12, 9:16 PM EDT	Severe Thunderstorm Warning	CLE	Ashland, Lorain	44 min
Jun 12, 9:18 PM EDT	Tornado Warning	PBZ	Guernsey, Noble	27 min
Jun 12, 9:41 PM EDT	Flash Flood Warning	CLE	Crawford, Richland	5 hr
Jun 12, 9:43 PM EDT	Severe Thunderstorm Warning	PBZ	Belmont, Guernsey, Monroe, Noble	47 min
Jun 12, 9:45 PM EDT	Severe Thunderstorm Warning	CLE	Lorain, Medina	60 min
Jun 12, 9:49 PM EDT	Severe Thunderstorm Warning	PBZ	Coshocton	56 min
Jun 12, 9:52 PM EDT	Tornado Warning	CLE	Knox	38 min
Jun 12, 10:00 PM EDT	Tornado Warning	CLE	Morrow, Richland	60 min
Jun 12, 10:08 PM EDT	Severe Thunderstorm Warning	CLE	Ashland, Holmes, Knox	67 min
Jun 12, 10:14 PM EDT	Severe Thunderstorm Warning	CLE	Ashland, Crawford, Richland	61 min
Jun 12, 10:20 PM EDT	Flash Flood Warning	CLE	Marion, Morrow	6 hr
Jun 12, 10:24 PM EDT	Severe Thunderstorm Warning	PBZ	Belmont, Monroe	51 min
Jun 12, 10:28 PM EDT	Tornado Warning	CLE	Knox, Morrow	62 min
Jun 12, 10:35 PM EDT	Tornado Warning	PBZ	Coshocton	25 min
Jun 12, 10:45 PM EDT	Severe Thunderstorm Warning	PBZ	Belmont, Monroe	45 min
Jun 12, 10:55 PM EDT	Severe Thunderstorm Warning	RLX	Doddridge, Harrison, Lewis	50 min
Jun 12, 10:56 PM EDT	Tornado Warning	PBZ	Coshocton, Guernsey, Muskingum, Tuscarawas	49 min
Jun 12, 11:06 PM EDT	Tornado Warning	CLE	Cuyahoga, Lorain	54 min
Jun 12, 11:08 PM EDT	Severe Thunderstorm Warning	PBZ	Coshocton, Tuscarawas	67 min
Jun 12, 11:14 PM EDT	Severe Thunderstorm Warning	PBZ	Monroe	46 min
Jun 12, 11:16 PM EDT	Severe Thunderstorm Warning	CLE	Holmes	44 min
Jun 12, 11:34 PM EDT	Severe Thunderstorm Warning	RLX	Doddridge, Harrison, Tyler	41 min
Jun 12, 11:40 PM EDT	Severe Thunderstorm Warning	PBZ	Marion, Monongalia, Wetzel	50 min
Jun 12, 11:41 PM EDT	Severe Thunderstorm Warning	PBZ	Coshocton, Guernsey, Harrison, Tuscarawas	64 min
Jun 12, 11:44 PM EDT	Severe Thunderstorm Warning	PBZ	Coshocton, Guernsey, Tuscarawas	31 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, 10.5 hours before the alert went out and 137 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: 9 J/kg
Mixed-layer CIN: -146 J/kg
Mixed-layer LCL: 1061 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 76 m²/s²
0-3 km storm-relative helicity: 191 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 12, 11:26 AM EDT	Mesoscale Discussion	SPC	Defiance, Mercer, Paulding, Van Wert, Williams	64 min
Jun 12, 4:38 PM EDT	Mesoscale Discussion	SPC	Allen, Auglaize, Darke, Defiance, Hancock, Hardin and 8 more	97 min
Jun 12, 5:00 PM EDT	Severe Thunderstorm Watch PDS	SPC	Allen, Auglaize, Champaign, Clark, Crawford, Darke and 23 more	9 hr
Jun 12, 6:11 PM EDT	Mesoscale Discussion	SPC	Ashland, Athens, Belmont, Carroll, Columbiana, Coshocton and 29 more	94 min
Jun 12, 6:56 PM EDT	Mesoscale Discussion	SPC	Allen, Auglaize, Champaign, Clark, Crawford, Darke and 27 more	94 min

Nearby

Tornado Watches in Ohio, 2013 Tornado Watches in West Virginia, 2013 Tornado Watches in Pennsylvania, 2013 Every tornado watch in 2013

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.