Alert archive / Indiana / Severe Thunderstorm Watches in 2007

Severe Thunderstorm Watch 112

April 3, 200759 counties in Indiana; 14 counties in Kentucky; 37 counties in Ohio

The Storm Prediction Center issued this severe thunderstorm watch at Apr 3, 2007, 2:33 PM EDT for 59 counties in Indiana; 14 counties in Kentucky; 37 counties in Ohio. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued
Apr 3, 2007, 2:33 PM EDT (18:33 UTC)
Expired
Apr 3, 2007, 9:39 PM EDT
In force
7 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 110 counties

Adams County, IN, Allen County, IN, Bartholomew County, IN, Blackford County, IN, Boone County, IN, Brown County, IN, Clark County, IN, Clay County, IN, Clinton 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, Grant County, IN, Greene County, IN, Hamilton County, IN, Hancock County, IN, Harrison County, IN, Hendricks County, IN, Henry County, IN, Howard County, IN, Huntington 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, Miami County, IN, Monroe County, IN, Morgan County, IN, Ohio County, IN, Orange County, IN, Owen County, IN, Perry County, IN, Putnam County, IN, Randolph County, IN, Ripley County, IN, Rush County, IN, Scott County, IN, Shelby County, IN, Sullivan County, IN, Switzerland County, IN, Tipton County, IN, Union County, IN, Vigo County, IN, Wabash County, IN, Washington County, IN, Wayne County, IN, Wells County, IN, Boone County, KY, Breckinridge County, KY, Campbell County, KY, Carroll County, KY, Gallatin County, KY, Grant County, KY, Hancock County, KY, Henry County, KY, Jefferson County, KY, Kenton County, KY, Meade County, KY, Oldham County, KY, Owen County, KY, Trimble County, KY, Allen County, OH, Auglaize County, OH, Butler County, OH, Champaign County, OH, Clark County, OH, Clinton County, OH, Crawford County, OH, Darke County, OH, Defiance County, OH, Delaware County, OH, Fayette County, OH, Franklin County, OH, Greene County, OH, Hamilton County, OH, Hancock County, OH, Hardin County, OH, Henry County, OH, Logan County, OH, Lucas County, OH, Madison County, OH, Marion County, OH, Mercer County, OH, Miami County, OH, Montgomery County, OH, Ottawa County, OH, Paulding County, OH, Pickaway County, OH, Preble County, OH, Putnam County, OH, Sandusky County, OH, Seneca County, OH, Shelby County, OH, Union County, OH, Van Wert County, OH, Warren County, OH, Wood County, OH, Wyandot County, OH

The radar

The Indianapolis radar (KIND), 46 km from the middle of the area, began a volume at 18:35 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
30%
One or more gusts of 65 knots or more
30%
Ten or more severe hail reports
40%
One or more hailstones of 2 inches or more
20%
Six or more combined severe hail and wind reports
80%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Apr 3, 2:37 PM EDTSevere Thunderstorm WarningINDClay, Greene, Owen, Sullivan, Vigo38 min
Apr 3, 2:41 PM EDTSevere Thunderstorm WarningINDClay, Hendricks, Morgan, Owen, Parke, Putnam49 min
Apr 3, 3:11 PM EDTSevere Thunderstorm WarningINDGreene, Owen19 min
Apr 3, 3:12 PM EDTSevere Thunderstorm WarningINDHendricks, Johnson, Marion, Morgan63 min
Apr 3, 3:27 PM EDTSevere Thunderstorm WarningINDBrown, Greene, Monroe, Morgan, Owen48 min
Apr 3, 3:54 PM EDTSevere Thunderstorm WarningINDDaviess, Greene, Jackson, Lawrence, Martin51 min
Apr 3, 4:05 PM EDTFlash Flood WarningINDMonroe115 min
Apr 3, 4:08 PM EDTSevere Thunderstorm WarningINDBartholomew, Brown, Jackson, Johnson, Lawrence, Monroe37 min
Apr 3, 4:10 PM EDTSevere Thunderstorm WarningINDDaviess, Knox36 min
Apr 3, 4:23 PM EDTSevere Thunderstorm WarningLMKOrange37 min
Apr 3, 4:35 PM EDTSevere Thunderstorm WarningLMKDubois25 min
Apr 3, 4:42 PM EDTSevere Thunderstorm WarningLMKCrawford33 min
Apr 3, 4:44 PM EDTSevere Thunderstorm WarningINDJackson, Lawrence28 min
Apr 3, 4:47 PM EDTSevere Thunderstorm WarningLMKScott, Washington43 min
Apr 3, 4:57 PM EDTSevere Thunderstorm WarningLMKDubois48 min
Apr 3, 5:01 PM EDTSevere Thunderstorm WarningLMKOrange29 min
Apr 3, 5:13 PM EDTSevere Thunderstorm WarningLMKCrawford32 min
Apr 3, 5:18 PM EDTSevere Thunderstorm WarningLMKHarrison42 min
Apr 3, 5:18 PM EDTTornado WarningLMKJefferson27 min
Apr 3, 5:24 PM EDTSevere Thunderstorm WarningLMKPerry51 min
Apr 3, 5:27 PM EDTSevere Thunderstorm WarningLMKClark, Floyd33 min
Apr 3, 5:29 PM EDTSevere Thunderstorm WarningLMKScott16 min
Apr 3, 5:44 PM EDTSevere Thunderstorm WarningLMKMeade31 min
Apr 3, 5:46 PM EDTSevere Thunderstorm WarningLMKJefferson, Oldham, Trimble44 min
Apr 3, 5:56 PM EDTSevere Thunderstorm WarningLMKClark, Floyd, Harrison49 min
Apr 3, 5:57 PM EDTFlash Flood WarningLMKCrawford2 hr
Apr 3, 6:03 PM EDTSevere Thunderstorm WarningLMKDubois27 min
Apr 3, 6:25 PM EDTSevere Thunderstorm WarningLMKHenry, Shelby35 min
Apr 3, 6:53 PM EDTSevere Thunderstorm WarningILNOwen40 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

Lincoln, IL (KILX), launched 12:00Z, 6.6 hours before the alert went out and 250 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, Lincoln, IL at 12:00Z on 2007-04-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 32 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, Lincoln, IL at 12:00Z on 2007-04-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 210 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
32 J/kg
Mixed-layer CIN
-399 J/kg
Mixed-layer LCL
1864 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
210 m²/s²
0-3 km storm-relative helicity
221 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.

IssuedProductOfficeCountiesLasted
Apr 3, 10:08 AM EDTMesoscale DiscussionSPCBenton, Fountain, Newton, Vermillion, Warren67 min
Apr 3, 10:48 AM EDTSevere Thunderstorm WatchSPCBoone, Carroll, Clay, Clinton, Daviess, Fountain and 16 more6 hr
Apr 3, 12:04 PM EDTMesoscale DiscussionSPCGibson, Pike, Posey, Vanderburgh, Warrick26 min
Apr 3, 12:51 PM EDTTornado WatchSPCGibson, Pike, Posey, Spencer, Vanderburgh, Warrick8 hr
Apr 3, 2:10 PM EDTMesoscale DiscussionSPCAdams, Allen, Bartholomew, Blackford, Boone, Brown and 43 more65 min
Apr 3, 3:25 PM EDTMesoscale DiscussionSPCGibson, Pike, Posey, Vanderburgh, Warrick65 min
Apr 3, 4:23 PM EDTMesoscale DiscussionSPCBartholomew, Blackford, Brown, Clark, Crawford, Dearborn and 33 more67 min
Apr 3, 3:15 PM EDTSevere Thunderstorm WatchSPCAllen, Barren, Bullitt, Butler, Clinton, Cumberland and 12 more6 hr
Apr 3, 6:05 PM EDTSevere Thunderstorm WatchSPCAdair, Anderson, Bath, Bell, Bourbon, Boyd and 60 more5 hr
Apr 3, 6:23 PM EDTMesoscale DiscussionSPCAllen, Barren, Breckinridge, Butler, Cumberland, Edmonson and 11 more2 hr
Apr 3, 7:15 PM EDTMesoscale DiscussionSPCAllen, Barren, Butler, Caldwell, Calloway, Christian and 16 more60 min

Nearby

Severe Thunderstorm Watches in Indiana, 2007Severe Thunderstorm Watches in Ohio, 2007Severe Thunderstorm Watches in Kentucky, 2007Every severe thunderstorm watch in 2007

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.