Alert archive / Indiana / Mesoscale Discussions in 2007
Mesoscale Discussion 459
The Storm Prediction Center issued this mesoscale discussion at Apr 11, 2007, 6:50 PM EDT for 38 counties in Indiana; 31 counties in Kentucky; 25 counties in Ohio. It was in force for 55 min.
The area
The outline as issued.
The facts
- Issued
- Apr 11, 2007, 6:50 PM EDT (22:50 UTC)
- Expired
- Apr 11, 2007, 7:45 PM EDT
- In force
- 55 min
- Issued by
- the Storm Prediction Center
All 94 counties
Adams County, IN, Allen County, IN, Bartholomew County, IN, Blackford County, IN, Boone County, IN, Cass County, IN, Clark County, IN, Clinton County, IN, Dearborn County, IN, Decatur County, IN, Delaware County, IN, Fayette County, IN, Franklin County, IN, Grant County, IN, Hamilton County, IN, Hancock County, IN, Henry County, IN, Howard County, IN, Huntington County, IN, Jay County, IN, Jefferson County, IN, Jennings County, IN, Johnson County, IN, Madison County, IN, Marion County, IN, Miami County, IN, Ohio County, IN, Randolph County, IN, Ripley County, IN, Rush County, IN, Scott County, IN, Shelby County, IN, Switzerland County, IN, Tipton County, IN, Union County, IN, Wabash County, IN, Wayne County, IN, Wells County, IN, Anderson County, KY, Bath County, KY, Boone County, KY, Bourbon County, KY, Bracken County, KY, Campbell County, KY, Carroll County, KY, Clark County, KY, Fayette County, KY, Fleming County, KY, Franklin County, KY, Gallatin County, KY, Grant County, KY, Harrison County, KY, Henry County, KY, Jefferson County, KY, Kenton County, KY, Lewis County, KY, Mason County, KY, Montgomery County, KY, Nicholas County, KY, Oldham County, KY, Owen County, KY, Pendleton County, KY, Robertson County, KY, Rowan County, KY, Scott County, KY, Shelby County, KY, Spencer County, KY, Trimble County, KY, Woodford County, KY, Adams County, OH, Allen County, OH, Auglaize County, OH, Brown County, OH, Butler County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Darke County, OH, Fayette County, OH, Greene County, OH, Hamilton County, OH, Hardin County, OH, Highland County, OH, Logan County, OH, Madison County, OH, Mercer County, OH, Miami County, OH, Montgomery County, OH, Preble County, OH, Shelby County, OH, Union County, OH, Van Wert County, OH, Warren County, OH
The radar
The Cincinnati radar (KILN), 80 km from the middle of the area, began a volume at 22:52 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.
The watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 10.8 hours before the alert went out and 82 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1328 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 260 m²/s²
- 0-3 km storm-relative helicity
- 339 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 11, 3:04 PM EDT | Mesoscale Discussion | SPC | Clay, Daviess, Dubois, Gibson, Greene, Knox and 13 more | 86 min |
| Apr 11, 5:28 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Bartholomew, Benton, Blackford, Boone, Brown and 62 more | 4 hr |
| Apr 11, 7:16 PM EDT | Severe Thunderstorm Watch | SPC | Bath, Bourbon, Boyd, Bracken, Campbell, Carter and 18 more | 5 hr |
Nearby
Mesoscale Discussions in Indiana, 2007Mesoscale Discussions in Kentucky, 2007Mesoscale Discussions in Ohio, 2007Every mesoscale discussion 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.