Alert archive / Kentucky / Mesoscale Discussions in 2009
Mesoscale Discussion 374
The Storm Prediction Center issued this mesoscale discussion at Apr 2, 2009, 5:35 PM EDT for 4 states. It was in force for 85 min.
The area
The outline as issued.
The facts
- Issued
- Apr 2, 2009, 5:35 PM EDT (21:35 UTC)
- Expired
- Apr 2, 2009, 7:00 PM EDT
- In force
- 85 min
- Issued by
- the Storm Prediction Center
All 101 counties
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, Harrison County, IN, Jackson County, IN, Jefferson County, IN, Jennings County, IN, Lawrence County, IN, Martin County, IN, Monroe County, IN, Ohio County, IN, Orange County, IN, Perry County, IN, Pike County, IN, Ripley County, IN, Scott County, IN, Spencer County, IN, Switzerland County, IN, Washington County, IN, Adair County, KY, Anderson County, KY, Barren County, KY, Bath County, KY, Boone County, KY, Bourbon County, KY, Boyle County, KY, Bracken County, KY, Breckinridge County, KY, Bullitt County, KY, Campbell County, KY, Carroll County, KY, Casey County, KY, Clark County, KY, Clinton County, KY, Cumberland County, KY, Edmonson County, KY, Estill County, KY, Fayette County, KY, Fleming County, KY, Franklin County, KY, Gallatin County, KY, Garrard County, KY, Grant County, KY, Grayson County, KY, Green County, KY, Hancock County, KY, Hardin County, KY, Harrison County, KY, Hart County, KY, Henry County, KY, Jackson County, KY, Jefferson County, KY, Jessamine County, KY, Kenton County, KY, Larue County, KY, Laurel County, KY, Lee County, KY, Lincoln County, KY, Madison County, KY, Marion County, KY, Mason County, KY, McCreary County, KY, Meade County, KY, Menifee County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Montgomery County, KY, Nelson County, KY, Nicholas County, KY, Oldham County, KY, Owen County, KY, Owsley County, KY, Pendleton County, KY, Powell County, KY, Pulaski County, KY, Robertson County, KY, Rockcastle County, KY, Rowan County, KY, Russell County, KY, Scott County, KY, Shelby County, KY, Spencer County, KY, Taylor County, KY, Trimble County, KY, Washington County, KY, Wayne County, KY, Wolfe County, KY, Woodford County, KY, Brown County, OH, Clermont County, OH, Hamilton County, OH, Clay County, TN, Jackson County, TN, Pickett County, TN
The radar
The Louisville radar (KLVX), 31 km from the middle of the area, began a volume at 21:35 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.
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, 9.6 hours before the alert went out and 219 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
- 3010 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 91 m²/s²
- 0-3 km storm-relative helicity
- 200 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 2, 3:04 PM EDT | Mesoscale Discussion | SPC | Crawford, Dubois, Floyd, Gibson, Harrison, Orange and 7 more | 116 min |
| Apr 2, 3:40 PM EDT | Tornado Watch | SPC | Dubois, Gibson, Perry, Pike, Posey, Spencer and 2 more | 4 hr |
| Apr 2, 6:27 PM EDT | Tornado Watch | SPC | Bartholomew, Brown, Clark, Crawford, Daviess, Dearborn and 19 more | 3 hr |
| Apr 2, 6:36 PM EDT | Mesoscale Discussion | SPC | Fulton, Hickman | 84 min |
| Apr 2, 11:53 AM EDT | Tornado Watch | SPC | Chester, Fayette, Hardeman, Hardin, McNairy, Shelby | 4 hr |
| Apr 2, 2:09 PM EDT | Mesoscale Discussion | SPC | Bedford, Coffee, Franklin, Giles, Lawrence, Lincoln and 4 more | 66 min |
| Apr 2, 2:33 PM EDT | Tornado Watch | SPC | Bedford, Giles, Hickman, Lawrence, Lewis, Lincoln and 7 more | 5 hr |
| Apr 2, 4:42 PM EDT | Mesoscale Discussion | SPC | Bedford, Giles, Lawrence, Lewis, Lincoln, Marshall and 2 more | 63 min |
| Apr 2, 6:25 PM EDT | Mesoscale Discussion | SPC | Anderson, Bledsoe, Blount, Bradley, Cumberland, Fentress and 20 more | 95 min |
| Apr 2, 7:02 PM EDT | Tornado Watch | SPC | Anderson, Bedford, Benton, Bledsoe, Bradley, Campbell and 52 more | 7 hr |
| Apr 2, 7:21 PM EDT | Tornado Watch | SPC | Carroll, Chester, Crockett, Decatur, Dyer, Fayette and 14 more | 3 hr |
Nearby
Mesoscale Discussions in Kentucky, 2009Mesoscale Discussions in Indiana, 2009Mesoscale Discussions in Ohio, 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; radar from the NEXRAD Level II archive.