Alert archive / Kentucky / Mesoscale Discussions in 2009
Mesoscale Discussion 400
The Storm Prediction Center issued this mesoscale discussion at Apr 5, 2009, 2:02 PM CDT for 5 states. It was in force for 88 min.
The area
The outline as issued.
The facts
- Issued
- Apr 5, 2009, 2:02 PM CDT (19:02 UTC)
- Expired
- Apr 5, 2009, 3:30 PM CDT
- In force
- 88 min
- Issued by
- the Storm Prediction Center
All 92 counties
Edwards County, IL, Gallatin County, IL, Hardin County, IL, Johnson County, IL, Lawrence County, IL, Massac County, IL, Pope County, IL, Saline County, IL, Wabash County, IL, White County, IL, 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, Gibson 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, Pike County, IN, Posey County, IN, Ripley County, IN, Scott County, IN, Spencer County, IN, Sullivan County, IN, Switzerland County, IN, Vanderburgh County, IN, Warrick County, IN, Washington County, IN, Ballard County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Caldwell County, KY, Calloway County, KY, Carlisle County, KY, Carroll County, KY, Christian County, KY, Crittenden County, KY, Daviess County, KY, Fulton County, KY, Gallatin County, KY, Graves County, KY, Grayson County, KY, Hancock County, KY, Hardin County, KY, Henderson County, KY, Henry County, KY, Hickman County, KY, Hopkins County, KY, Jefferson County, KY, Livingston County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Meade County, KY, Muhlenberg County, KY, Ohio County, KY, Oldham County, KY, Shelby County, KY, Todd County, KY, Trigg County, KY, Trimble County, KY, Union County, KY, Webster County, KY, Mississippi County, MO, Carroll County, TN, Crockett County, TN, Dyer County, TN, Gibson County, TN, Haywood County, TN, Henry County, TN, Lake County, TN, Lauderdale County, TN, Obion County, TN, Stewart County, TN, Tipton County, TN, Weakley County, TN
The watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 7.0 hours before the alert went out and 165 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
- 1419 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 140 m²/s²
- 0-3 km storm-relative helicity
- 270 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 5, 10:50 AM CDT | Mesoscale Discussion | SPC | Alexander, Bond, Bureau, Cass, Champaign, Christian and 67 more | 115 min |
| Apr 5, 11:44 AM CDT | Tornado Watch | SPC | Alexander, Edwards, Gallatin, Hamilton, Hardin, Johnson and 9 more | 6 hr |
| Apr 5, 5:10 PM CDT | Mesoscale Discussion | SPC | Clark, Dearborn, Floyd, Franklin, Harrison, Jefferson and 6 more | 65 min |
| Apr 5, 5:37 PM CDT | Tornado Watch | SPC | Bartholomew, Clark, Crawford, Dearborn, Decatur, Fayette and 16 more | 5 hr |
| Apr 5, 6:19 PM CDT | Mesoscale Discussion | SPC | Bedford, Cannon, Coffee, DeKalb, Franklin, Giles and 14 more | 86 min |
Nearby
Mesoscale Discussions in Kentucky, 2009Mesoscale Discussions in Indiana, 2009Mesoscale Discussions in Tennessee, 2009Every mesoscale discussion in 2009
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.