Alert archive / Ohio / Severe Thunderstorm Watches in 2005

Severe Thunderstorm Watch 737

August 20, 200549 counties in Indiana; 23 counties in Kentucky; 58 counties in Ohio

The Storm Prediction Center issued this severe thunderstorm watch at Aug 20, 2005, 12:15 PM EST for 49 counties in Indiana; 23 counties in Kentucky; 58 counties in Ohio. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Aug 20, 2005, 12:15 PM EST (17:15 UTC)
Expired
Aug 20, 2005, 6:00 PM EST
In force
6 hr
Issued by
the Storm Prediction Center
All 130 counties

Adams County, IN, Bartholomew County, IN, Blackford County, IN, Brown County, IN, Clark County, IN, Crawford County, IN, Daviess County, IN, Dearborn County, IN, Decatur County, IN, Delaware County, IN, Dubois County, IN, Fayette County, IN, Floyd County, IN, Franklin County, IN, Gibson County, IN, Greene County, IN, Hancock County, IN, Harrison County, IN, Henry County, IN, Jackson County, IN, Jay County, IN, Jefferson County, IN, Jennings County, IN, Johnson County, IN, Knox County, IN, Lawrence County, IN, Madison County, IN, Marion County, IN, Martin County, IN, Monroe County, IN, Morgan County, IN, Ohio County, IN, Orange County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Randolph County, IN, Ripley County, IN, Rush County, IN, Scott County, IN, Shelby County, IN, Spencer County, IN, Switzerland County, IN, Union County, IN, Vanderburgh County, IN, Warrick County, IN, Washington County, IN, Wayne County, IN, Wells County, IN, Anderson County, KY, Boone County, KY, Bracken County, KY, Bullitt County, KY, Campbell County, KY, Carroll County, KY, Franklin County, KY, Gallatin County, KY, Grant County, KY, Harrison County, KY, Henry County, KY, Jefferson County, KY, Kenton County, KY, Meade County, KY, Oldham County, KY, Owen County, KY, Pendleton County, KY, Robertson County, KY, Scott County, KY, Shelby County, KY, Spencer County, KY, Trimble County, KY, Woodford County, KY, Allen County, OH, Ashland County, OH, Auglaize County, OH, Brown County, OH, Butler County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Crawford County, OH, Cuyahoga County, OH, Darke County, OH, Defiance County, OH, Delaware County, OH, Erie County, OH, Fairfield County, OH, Fayette County, OH, Franklin County, OH, Fulton County, OH, Geauga County, OH, Greene County, OH, Hamilton County, OH, Hancock County, OH, Hardin County, OH, Henry County, OH, Highland County, OH, Holmes County, OH, Huron County, OH, Knox County, OH, Licking County, OH, Logan County, OH, Lorain County, OH, Lucas County, OH, Madison County, OH, Marion County, OH, Medina County, OH, Mercer County, OH, Miami County, OH, Montgomery County, OH, Morrow County, OH, Ottawa County, OH, Paulding County, OH, Pickaway County, OH, Portage County, OH, Preble County, OH, Putnam County, OH, Richland County, OH, Ross County, OH, Sandusky County, OH, Seneca County, OH, Shelby County, OH, Summit County, OH, Union County, OH, Van Wert County, OH, Warren County, OH, Wayne County, OH, Wood County, OH, Wyandot County, OH

The radar

The Cincinnati radar (KILN), 99 km from the middle of the area, began a volume at 17:15 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.

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Aug 20, 12:59 PM ESTSevere Thunderstorm WarningINDDelaware, Henry, Randolph36 min
Aug 20, 1:17 PM ESTSevere Thunderstorm WarningILNDarke43 min
Aug 20, 1:18 PM ESTSevere Thunderstorm WarningCLESummit, Wayne47 min
Aug 20, 1:27 PM ESTSevere Thunderstorm WarningINDLawrence, Martin35 min
Aug 20, 1:54 PM ESTSevere Thunderstorm WarningILNHardin51 min
Aug 20, 2:07 PM ESTSevere Thunderstorm WarningILNChampaign, Miami, Shelby38 min
Aug 20, 2:09 PM ESTSevere Thunderstorm WarningCLEAshland, Huron61 min
Aug 20, 2:10 PM ESTSevere Thunderstorm WarningILNLogan, Union50 min
Aug 20, 2:12 PM ESTSevere Thunderstorm WarningLMKDubois33 min
Aug 20, 2:22 PM ESTSevere Thunderstorm WarningCLEMarion56 min
Aug 20, 2:24 PM ESTSevere Thunderstorm WarningILNPreble32 min
Aug 20, 2:25 PM ESTSevere Thunderstorm WarningILNChampaign, Clark50 min
Aug 20, 2:26 PM ESTSevere Thunderstorm WarningCLELorain64 min
Aug 20, 2:29 PM ESTSevere Thunderstorm WarningILNDearborn46 min
Aug 20, 2:33 PM ESTSevere Thunderstorm WarningPAHSpencer, Warrick42 min
Aug 20, 2:35 PM ESTSevere Thunderstorm WarningLMKCrawford, Orange40 min
Aug 20, 2:37 PM ESTSevere Thunderstorm WarningLMKPerry38 min
Aug 20, 2:38 PM ESTSevere Thunderstorm WarningCLEMedina67 min
Aug 20, 2:57 PM ESTSevere Thunderstorm WarningCLEMorrow47 min
Aug 20, 3:01 PM ESTSevere Thunderstorm WarningCLEKnox, Richland59 min
Aug 20, 3:08 PM ESTSevere Thunderstorm WarningILNClermont, Hamilton, Warren52 min
Aug 20, 3:11 PM ESTSevere Thunderstorm WarningCLECuyahoga70 min
Aug 20, 3:15 PM ESTSevere Thunderstorm WarningLMKPerry30 min
Aug 20, 3:20 PM ESTTornado WarningCLEMedina28 min
Aug 20, 3:25 PM ESTSevere Thunderstorm WarningILNKenton, Pendleton50 min
Aug 20, 3:27 PM ESTSevere Thunderstorm WarningCLELorain51 min
Aug 20, 3:34 PM ESTFlash Flood WarningCLECuyahoga, Lorain116 min
Aug 20, 3:39 PM ESTSevere Thunderstorm WarningILNCampbell37 min
Aug 20, 3:45 PM ESTSevere Thunderstorm WarningILNFayette, Pickaway35 min
Aug 20, 3:52 PM ESTSevere Thunderstorm WarningLMKHardin, Meade38 min
Aug 20, 3:57 PM ESTSevere Thunderstorm WarningCLEGeauga, Lake46 min
Aug 20, 4:12 PM ESTSevere Thunderstorm WarningILNFairfield35 min
Aug 20, 4:53 PM ESTFlash Flood WarningCLEErie2 hr
Aug 20, 5:29 PM ESTFlash Flood WarningCLECuyahoga, Lorain2 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, 5.3 hours before the alert went out and 99 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-pSkew-T log-p diagram, Cncnati-Daytn, OH at 12:00Z on 2005-08-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2933 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 12:00Z on 2005-08-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 106 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
2933 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
770 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
106 m²/s²
0-3 km storm-relative helicity
124 m²/s²
Significant tornado parameter
1.1
Supercell composite
9.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 20, 11:31 AM ESTMesoscale DiscussionSPCAdams, Bartholomew, Brown, Clark, Crawford, Daviess and 39 more89 min
Aug 20, 2:11 PM ESTMesoscale DiscussionSPCBartholomew, Brown, Clark, Crawford, Dearborn, Decatur and 24 more94 min
Aug 20, 1:35 PM ESTMesoscale DiscussionSPCBallard, Carlisle, Fulton, Graves, Hickman, Livingston and 2 more115 min
Aug 20, 3:06 PM ESTMesoscale DiscussionSPCBath, Boyd, Carter, Clark, Elliott, Greenup and 5 more84 min
Aug 20, 3:55 PM ESTSevere Thunderstorm WatchSPCBath, Bourbon, Boyd, Carter, Clark, Elliott and 11 more6 hr
Aug 20, 6:10 PM ESTMesoscale DiscussionSPCBath, Boyd, Carter, Elliott, Fleming, Greenup and 4 more95 min
Aug 20, 2:10 PM ESTSevere Thunderstorm WatchSPCBelmont, Carroll, Columbiana, Coshocton, Guernsey, Harrison and 9 more6 hr

Nearby

Severe Thunderstorm Watches in Ohio, 2005Severe Thunderstorm Watches in Indiana, 2005Severe Thunderstorm Watches in Kentucky, 2005Every severe thunderstorm watch in 2005

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.