Alert archive / Ohio / Severe Thunderstorm Watches in 2011

Severe Thunderstorm Watch 428

June 4, 201140 counties in Indiana; 58 counties in Ohio; 28 counties in West Virginia

The Storm Prediction Center issued this severe thunderstorm watch at Jun 4, 2011, 6:13 PM EDT for 40 counties in Indiana; 58 counties in Ohio; 28 counties in West Virginia. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued: Jun 4, 2011, 6:13 PM EDT (22:13 UTC)
Expired: Jun 5, 2011, 1:19 AM EDT
In force: 7 hr
Issued by: the Storm Prediction Center
Largest hail expected: 2 in
Strongest gust expected: 60 kt

All 126 counties

Bartholomew County, IN, Boone County, IN, Brown County, IN, Carroll County, IN, Clay County, IN, Clinton County, IN, Decatur County, IN, Delaware County, IN, Fayette County, IN, Fountain County, IN, Franklin County, IN, Greene County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Howard County, IN, Jackson County, IN, Jennings County, IN, Johnson County, IN, Lawrence County, IN, Madison County, IN, Marion County, IN, Monroe County, IN, Montgomery County, IN, Morgan County, IN, Owen County, IN, Parke County, IN, Putnam County, IN, Randolph County, IN, Rush County, IN, Shelby County, IN, Sullivan County, IN, Tippecanoe County, IN, Tipton County, IN, Union County, IN, Vermillion County, IN, Vigo County, IN, Warren County, IN, Wayne County, IN, Ashland County, OH, Athens 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, Darke County, OH, Delaware County, OH, Fairfield County, OH, Fayette County, OH, Franklin County, OH, Gallia County, OH, Greene County, OH, Guernsey County, OH, Hardin County, OH, Harrison County, OH, Hocking County, OH, Holmes County, OH, Jackson County, OH, Jefferson County, OH, Knox County, OH, Lawrence County, OH, Licking County, OH, Logan County, OH, Madison County, OH, Mahoning County, OH, Marion County, OH, Meigs 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, Perry County, OH, Pickaway County, OH, Pike County, OH, Preble County, OH, Richland County, OH, Ross County, OH, Scioto County, OH, Shelby County, OH, Stark County, OH, Tuscarawas County, OH, Union County, OH, Vinton County, OH, Warren County, OH, Washington County, OH, Wayne County, OH, Wyandot County, OH, Barbour County, WV, Braxton County, WV, Brooke County, WV, Cabell County, WV, Calhoun County, WV, Clay County, WV, Doddridge County, WV, Gilmer County, WV, Hancock County, WV, Harrison County, WV, Jackson County, WV, Kanawha County, WV, Lewis County, WV, Marion County, WV, Marshall County, WV, Mason County, WV, Monongalia County, WV, Ohio County, WV, Pleasants County, WV, Putnam County, WV, Ritchie County, WV, Roane County, WV, Taylor County, WV, Tyler County, WV, Upshur County, WV, Wetzel County, WV, Wirt County, WV, Wood County, WV

The radar

The Cincinnati radar (KILN), 110 km from the middle of the area, began a volume at 22:14 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: 20%
One or more EF2 to EF5 tornadoes: 5%
Ten or more severe wind reports: 50%
One or more gusts of 65 knots or more: 30%
Ten or more severe hail reports: 30%
One or more hailstones of 2 inches or more: 20%
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
Jun 4, 6:24 PM EDT	Severe Thunderstorm Warning	ILN	Delaware, Hardin, Logan, Union	47 min
Jun 4, 6:26 PM EDT	Severe Thunderstorm Warning	IND	Carroll, Clinton, Howard, Tippecanoe	79 min
Jun 4, 6:40 PM EDT	Severe Thunderstorm Warning	IND	Clinton, Delaware, Howard, Madison, Randolph, Tipton	95 min
Jun 4, 6:44 PM EDT	Severe Thunderstorm Warning	PBZ	Carroll, Tuscarawas	61 min
Jun 4, 6:55 PM EDT	Tornado Warning	IND	Carroll, Clinton, Howard	12 min
Jun 4, 6:59 PM EDT	Severe Thunderstorm Warning	ILN	Delaware, Franklin, Union	46 min
Jun 4, 7:16 PM EDT	Tornado Warning	PBZ	Carroll, Harrison, Tuscarawas	44 min
Jun 4, 7:17 PM EDT	Flash Flood Warning	IND	Carroll, Clinton, Delaware, Howard, Madison, Tipton	6 hr
Jun 4, 7:19 PM EDT	Severe Thunderstorm Warning	CLE	Ashland, Medina, Stark, Wayne	56 min
Jun 4, 7:19 PM EDT	Severe Thunderstorm Warning	PBZ	Coshocton, Guernsey, Muskingum, Tuscarawas	41 min
Jun 4, 7:26 PM EDT	Severe Thunderstorm Warning	IND	Clinton, Fountain, Tippecanoe, Warren	49 min
Jun 4, 7:35 PM EDT	Severe Thunderstorm Warning	IND	Boone, Clinton, Hamilton, Madison, Tipton	40 min
Jun 4, 7:40 PM EDT	Severe Thunderstorm Warning	ILN	Fairfield, Franklin, Licking, Pickaway	50 min
Jun 4, 7:49 PM EDT	Severe Thunderstorm Warning	IND	Boone, Fountain, Montgomery, Parke, Tippecanoe, Vermillion and 1 more	41 min
Jun 4, 7:52 PM EDT	Severe Thunderstorm Warning	IND	Randolph	38 min
Jun 4, 7:52 PM EDT	Severe Thunderstorm Warning	CLE	Marion, Morrow	29 min
Jun 4, 7:53 PM EDT	Severe Thunderstorm Warning	PBZ	Belmont, Carroll, Coshocton, Guernsey, Harrison, Tuscarawas	52 min
Jun 4, 7:58 PM EDT	Severe Thunderstorm Warning	PBZ	Coshocton, Guernsey, Muskingum, Tuscarawas	47 min
Jun 4, 8:03 PM EDT	Severe Thunderstorm Warning	IND	Boone, Hamilton, Hancock, Hendricks, Johnson, Madison and 3 more	42 min
Jun 4, 8:07 PM EDT	Severe Thunderstorm Warning	PBZ	Belmont, Guernsey, Harrison, Monroe	53 min
Jun 4, 8:11 PM EDT	Severe Thunderstorm Warning	ILN	Fairfield, Hocking, Pickaway, Ross	64 min
Jun 4, 8:18 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Hancock, Henry, Randolph, Rush, Shelby	42 min
Jun 4, 8:28 PM EDT	Severe Thunderstorm Warning	IND	Clay, Hendricks, Montgomery, Morgan, Parke, Putnam	47 min
Jun 4, 8:41 PM EDT	Severe Thunderstorm Warning	PBZ	Carroll, Guernsey, Harrison, Tuscarawas	64 min
Jun 4, 8:45 PM EDT	Severe Thunderstorm Warning	PBZ	Belmont, Coshocton, Guernsey, Harrison, Monroe, Noble and 1 more	45 min
Jun 4, 8:56 PM EDT	Severe Thunderstorm Warning	IND	Fountain, Parke, Vermillion	49 min
Jun 4, 9:06 PM EDT	Severe Thunderstorm Warning	CLE	Holmes	24 min
Jun 4, 9:07 PM EDT	Severe Thunderstorm Warning	ILN	Fairfield, Hocking, Pickaway, Ross	38 min
Jun 4, 9:14 PM EDT	Severe Thunderstorm Warning	ILN	Greene, Miami, Montgomery	31 min
Jun 4, 9:19 PM EDT	Tornado Warning	CLE	Holmes	20 min
Jun 4, 9:27 PM EDT	Severe Thunderstorm Warning	PBZ	Monroe, Noble	48 min
Jun 4, 9:28 PM EDT	Tornado Warning	PBZ	Coshocton	32 min
Jun 4, 9:37 PM EDT	Severe Thunderstorm Warning	ILN	Clark, Greene, Montgomery	38 min
Jun 4, 9:39 PM EDT	Severe Thunderstorm Warning	IND	Fountain, Parke, Vermillion	51 min
Jun 4, 9:41 PM EDT	Severe Thunderstorm Warning	ILN	Hocking, Pickaway, Pike, Ross	64 min
Jun 4, 9:42 PM EDT	Tornado Warning	PBZ	Coshocton	15 min
Jun 4, 9:45 PM EDT	Severe Thunderstorm Warning	CLE	Holmes, Knox	30 min
Jun 4, 9:51 PM EDT	Severe Thunderstorm Warning	PBZ	Coshocton, Muskingum	54 min
Jun 4, 9:58 PM EDT	Severe Thunderstorm Warning	PBZ	Coshocton, Guernsey, Muskingum, Noble, Tuscarawas	47 min
Jun 4, 10:22 PM EDT	Severe Thunderstorm Warning	RLX	Washington	53 min
Jun 4, 10:59 PM EDT	Flash Flood Warning	ILN	Fairfield, Hocking, Pickaway, Ross	3 hr
Jun 4, 11:48 PM EDT	Severe Thunderstorm Warning	ILN	Pike, Scioto	42 min
Jun 5, 12:07 AM EDT	Flash Flood Warning	ILN	Scioto	3 hr
Jun 5, 12:19 AM EDT	Flash Flood Warning	PBZ	Muskingum	4 hr

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, 10.2 hours before the alert went out and 110 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2253 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 133 m²/s²
0-3 km storm-relative helicity: 151 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 4, 2:27 PM EDT	Mesoscale Discussion	SPC	Benton, Carroll, Cass, Elkhart, Fulton, Huntington and 16 more	63 min
Jun 4, 3:08 PM EDT	Severe Thunderstorm Watch	SPC	Adams, Allen, Benton, Blackford, Cass, DeKalb and 23 more	7 hr
Jun 4, 5:51 PM EDT	Mesoscale Discussion	SPC	Ashland, Athens, Belmont, Carroll, Columbiana, Coshocton and 37 more	24 min

Nearby

Severe Thunderstorm Watches in Ohio, 2011 Severe Thunderstorm Watches in Indiana, 2011 Severe Thunderstorm Watches in West Virginia, 2011 Every severe thunderstorm watch in 2011

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.