Alert archive / Kentucky / Severe Thunderstorm Watches in 2003
Severe Thunderstorm Watch 67
The Storm Prediction Center issued this severe thunderstorm watch at Mar 20, 2003, 12:45 PM CST for 4 states. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 20, 2003, 12:45 PM CST (18:45 UTC)
- Expired
- Mar 20, 2003, 7:00 PM CST
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 72 counties
Clay County, IL, Clinton County, IL, Edwards County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Jefferson County, IL, Johnson County, IL, Lawrence County, IL, Marion County, IL, Massac County, IL, Perry County, IL, Pope County, IL, Richland County, IL, Saline County, IL, Wabash County, IL, Washington County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Daviess County, IN, Dubois County, IN, Gibson County, IN, Knox County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Spencer County, IN, Vanderburgh County, IN, Warrick County, IN, Allen County, KY, Ballard County, KY, Butler County, KY, Caldwell County, KY, Calloway County, KY, Christian County, KY, Crittenden County, KY, Daviess County, KY, Graves County, KY, Hancock County, KY, Henderson County, KY, Hopkins County, KY, Livingston County, KY, Logan County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Muhlenberg County, KY, Ohio County, KY, Simpson County, KY, Todd County, KY, Trigg County, KY, Union County, KY, Warren County, KY, Webster County, KY, Benton County, TN, Carroll County, TN, Cheatham County, TN, Davidson County, TN, Dickson County, TN, Henry County, TN, Houston County, TN, Humphreys County, TN, Montgomery County, TN, Robertson County, TN, Stewart County, TN, Sumner County, TN, Trousdale County, TN, Weakley County, TN, Wilson County, TN
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 12:00Z, 6.8 hours before the alert went out and 189 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
- 170 J/kg
- Mixed-layer CIN
- -100 J/kg
- Mixed-layer LCL
- 1031 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 226 m²/s²
- 0-3 km storm-relative helicity
- 321 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.1
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 20, 12:23 PM CST | Mesoscale Discussion | SPC | Hardin | 3 hr |
| Mar 20, 1:05 PM CST | Severe Thunderstorm Watch | SPC | Adams, Allen, Bartholomew, Blackford, Boone, Brown and 47 more | 6 hr |
| Mar 20, 1:20 PM CST | Severe Thunderstorm Watch | SPC | Clark, Floyd, Harrison, Washington | 6 hr |
| Mar 20, 2:41 PM CST | Mesoscale Discussion | SPC | Adams, Allen, Bartholomew, Blackford, Boone, Brown and 58 more | 2 hr |
| Mar 19, 7:16 PM CST | Mesoscale Discussion | SPC | Bath, Bourbon, Bracken, Carter, Clark, Elliott and 20 more | 89 min |
| Mar 20, 5:43 PM CST | Mesoscale Discussion | SPC | Boyd, Carter, Elliott, Floyd, Greenup, Johnson and 3 more | 2 hr |
Nearby
Severe Thunderstorm Watches in Kentucky, 2003Severe Thunderstorm Watches in Illinois, 2003Severe Thunderstorm Watches in Tennessee, 2003Every severe thunderstorm watch in 2003
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.