Alert archive / Ohio / Severe Thunderstorm Watches in 2013

Severe Thunderstorm Watch 435

July 23, 20136 states

The Storm Prediction Center issued this severe thunderstorm watch at Jul 23, 2013, 1:54 PM EDT for 6 states. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued: Jul 23, 2013, 1:54 PM EDT (17:54 UTC)
Expired: Jul 23, 2013, 10:00 PM EDT
In force: 8 hr
Issued by: the Storm Prediction Center
Largest hail expected: 1.5 in
Strongest gust expected: 60 kt

All 193 counties

Bartholomew County, IN, Brown County, IN, Clark County, IN, Crawford County, IN, Daviess County, IN, Dearborn County, IN, Decatur County, IN, Dubois County, IN, Floyd County, IN, Franklin County, IN, Greene County, IN, Harrison County, IN, Jackson County, IN, Jefferson County, IN, Jennings County, IN, Knox County, IN, Lawrence County, IN, Martin County, IN, Monroe County, IN, Ohio County, IN, Orange County, IN, Perry County, IN, Ripley County, IN, Scott County, IN, Switzerland County, IN, Union County, IN, Washington County, IN, Anderson County, KY, Bath County, KY, Boone County, KY, Bourbon County, KY, Boyd County, KY, Boyle County, KY, Bracken County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Campbell County, KY, Carroll County, KY, Carter County, KY, Clark County, KY, Edmonson County, KY, Elliott County, KY, Estill County, KY, Fayette County, KY, Fleming County, KY, Franklin County, KY, Gallatin County, KY, Garrard County, KY, Grant County, KY, Grayson County, KY, Green County, KY, Greenup County, KY, Hancock County, KY, Hardin County, KY, Harrison County, KY, Hart County, KY, Henry County, KY, Jefferson County, KY, Jessamine County, KY, Kenton County, KY, Larue County, KY, Lewis County, KY, Madison County, KY, Marion County, KY, Mason County, KY, Meade County, KY, Menifee County, KY, Mercer County, KY, Montgomery County, KY, Nelson County, KY, Nicholas County, KY, Ohio County, KY, Oldham County, KY, Owen County, KY, Pendleton County, KY, Powell County, KY, Robertson County, KY, Rowan County, KY, Scott County, KY, Shelby County, KY, Spencer County, KY, Taylor County, KY, Trimble County, KY, Warren County, KY, Washington County, KY, Woodford County, KY, Garrett County, MD, Adams County, OH, Ashland County, OH, Ashtabula County, OH, Athens County, OH, Belmont County, OH, Brown County, OH, Butler County, OH, Carroll County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Columbiana County, OH, Coshocton County, OH, Cuyahoga County, OH, Delaware County, OH, Fairfield County, OH, Fayette County, OH, Franklin County, OH, Gallia County, OH, Geauga County, OH, Greene County, OH, Guernsey County, OH, Hamilton County, OH, Harrison County, OH, Highland County, OH, Hocking County, OH, Holmes County, OH, Jackson County, OH, Jefferson County, OH, Knox County, OH, Lake County, OH, Lawrence County, OH, Licking County, OH, Madison County, OH, Mahoning County, OH, Marion County, OH, Medina County, OH, Meigs County, OH, Miami County, OH, Monroe County, OH, Montgomery County, OH, Morgan County, OH, Morrow County, OH, Muskingum County, OH, Noble County, OH, Perry County, OH, Pickaway County, OH, Pike County, OH, Portage County, OH, Preble County, OH, Richland County, OH, Ross County, OH, Scioto County, OH, Stark County, OH, Summit County, OH, Trumbull County, OH, Tuscarawas County, OH, Union County, OH, Vinton County, OH, Warren County, OH, Washington County, OH, Wayne County, OH, Allegheny County, PA, Armstrong County, PA, Beaver County, PA, Butler County, PA, Clarion County, PA, Crawford County, PA, Erie County, PA, Fayette County, PA, Forest County, PA, Greene County, PA, Indiana County, PA, Jefferson County, PA, Lawrence County, PA, Mercer County, PA, Venango County, PA, Washington County, PA, Westmoreland County, PA, Barbour County, WV, Brooke County, WV, Cabell County, WV, Calhoun County, WV, Doddridge County, WV, Gilmer County, WV, Hancock County, WV, Harrison County, WV, Jackson County, WV, Lewis County, WV, Marion County, WV, Marshall County, WV, Mason County, WV, Monongalia County, WV, Ohio County, WV, Pleasants County, WV, Preston County, WV, Putnam County, WV, Ritchie County, WV, Roane County, WV, Taylor County, WV, Tyler County, WV, Wetzel County, WV, Wirt County, WV, Wood County, WV

The radar

The Cincinnati radar (KILN), 115 km from the middle of the area, began a volume at 17:58 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: 60%
One or more gusts of 65 knots or more: 10%
Ten or more severe hail reports: 40%
One or more hailstones of 2 inches or more: 10%
Six or more combined severe hail and wind reports: 90%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Jul 23, 2:04 PM EDT	Severe Thunderstorm Warning	IND	Brown, Jackson, Lawrence, Monroe	41 min
Jul 23, 2:12 PM EDT	Severe Thunderstorm Warning	CLE	Cuyahoga	48 min
Jul 23, 2:16 PM EDT	Tornado Warning	IND	Monroe	29 min
Jul 23, 2:22 PM EDT	Severe Thunderstorm Warning	CLE	Lorain, Medina	53 min
Jul 23, 2:24 PM EDT	Severe Thunderstorm Warning	IND	Greene	36 min
Jul 23, 2:47 PM EDT	Severe Thunderstorm Warning	IND	Brown, Greene, Jackson, Lawrence, Monroe	28 min
Jul 23, 2:48 PM EDT	Severe Thunderstorm Warning	CLE	Geauga, Portage, Summit	42 min
Jul 23, 3:10 PM EDT	Severe Thunderstorm Warning	CLE	Medina	50 min
Jul 23, 3:20 PM EDT	Severe Thunderstorm Warning	CLE	Mahoning, Stark	40 min
Jul 23, 3:30 PM EDT	Severe Thunderstorm Warning	ILN	Clark, Madison	30 min
Jul 23, 3:34 PM EDT	Severe Thunderstorm Warning	CLE	Portage, Summit	56 min
Jul 23, 3:38 PM EDT	Severe Thunderstorm Warning	PBZ	Columbiana	52 min
Jul 23, 3:42 PM EDT	Severe Thunderstorm Warning	ILN	Dearborn, Ripley	33 min
Jul 23, 3:46 PM EDT	Tornado Warning	CLE	Stark	29 min
Jul 23, 3:46 PM EDT	Severe Thunderstorm Warning	ILN	Brown, Clermont, Clinton, Highland, Warren	44 min
Jul 23, 3:46 PM EDT	Tornado Warning	PBZ	Columbiana	29 min
Jul 23, 3:53 PM EDT	Severe Thunderstorm Warning	CLE	Trumbull	67 min
Jul 23, 4:01 PM EDT	Severe Thunderstorm Warning	ILN	Butler, Hamilton	29 min
Jul 23, 4:10 PM EDT	Severe Thunderstorm Warning	PBZ	Coshocton, Tuscarawas	50 min
Jul 23, 4:11 PM EDT	Severe Thunderstorm Warning	CLE	Ashtabula	64 min
Jul 23, 4:21 PM EDT	Severe Thunderstorm Warning	CLE	Mahoning	39 min
Jul 23, 4:22 PM EDT	Severe Thunderstorm Warning	ILN	Butler, Montgomery, Preble, Warren	38 min
Jul 23, 4:27 PM EDT	Severe Thunderstorm Warning	ILN	Adams, Brown, Clermont, Clinton, Highland	48 min
Jul 23, 4:32 PM EDT	Severe Thunderstorm Warning	CLE	Medina, Portage, Stark, Summit	58 min
Jul 23, 4:32 PM EDT	Flash Flood Warning	CLE	Crawford, Erie	5 hr
Jul 23, 4:38 PM EDT	Severe Thunderstorm Warning	PBZ	Columbiana	52 min
Jul 23, 4:38 PM EDT	Tornado Warning	CLE	Crawford	37 min
Jul 23, 4:38 PM EDT	Severe Thunderstorm Warning	PBZ	Clarion, Forest, Venango	67 min
Jul 23, 4:43 PM EDT	Severe Thunderstorm Warning	PBZ	Coshocton, Guernsey, Tuscarawas	32 min
Jul 23, 5:00 PM EDT	Severe Thunderstorm Warning	PBZ	Muskingum	30 min
Jul 23, 5:08 PM EDT	Flash Flood Warning	ILN	Butler	3 hr
Jul 23, 5:12 PM EDT	Tornado Warning	PBZ	Carroll, Columbiana	33 min
Jul 23, 5:18 PM EDT	Severe Thunderstorm Warning	PBZ	Coshocton, Guernsey	42 min
Jul 23, 5:26 PM EDT	Severe Thunderstorm Warning	RLX	Morgan, Washington	49 min
Jul 23, 5:29 PM EDT	Severe Thunderstorm Warning	PBZ	Columbiana	46 min
Jul 23, 5:30 PM EDT	Flash Flood Warning	ILN	Brown, Clermont	3 hr
Jul 23, 5:36 PM EDT	Severe Thunderstorm Warning	CLE	Knox	39 min
Jul 23, 5:40 PM EDT	Severe Thunderstorm Warning	PBZ	Carroll, Columbiana, Jefferson	35 min
Jul 23, 6:17 PM EDT	Flash Flood Warning	RLX	Morgan	6 hr
Jul 23, 6:19 PM EDT	Severe Thunderstorm Warning	PBZ	Jefferson	41 min
Jul 23, 6:22 PM EDT	Severe Thunderstorm Warning	PBZ	Allegheny, Westmoreland	38 min
Jul 23, 6:55 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Greene, Washington, Westmoreland	65 min
Jul 23, 6:56 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette, Westmoreland	49 min
Jul 23, 8:21 PM EDT	Severe Thunderstorm Warning	PBZ	Fayette	54 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 5.9 hours before the alert went out and 113 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: 928 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 623 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 47 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.3

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 23, 4:02 PM EDT	Mesoscale Discussion	SPC	Bartholomew, Brown, Clark, Crawford, Daviess, Dearborn and 20 more	88 min
Jul 23, 12:44 PM EDT	Mesoscale Discussion	SPC	Boyd, Bracken, Campbell, Carter, Fleming, Greenup and 3 more	91 min
Jul 23, 6:57 PM EDT	Mesoscale Discussion	SPC	Anderson, Bath, Bourbon, Boyd, Boyle, Bracken and 45 more	93 min
Jul 23, 5:27 PM EDT	Mesoscale Discussion	SPC	Bedford, Blair, Cambria, Cameron, Centre, Clearfield and 6 more	3 hr

Nearby

Severe Thunderstorm Watches in Ohio, 2013 Severe Thunderstorm Watches in Kentucky, 2013 Severe Thunderstorm Watches in Indiana, 2013 Every severe thunderstorm 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.