Alert archive / Kentucky / Mesoscale Discussions in 2004
Mesoscale Discussion 1213
The Storm Prediction Center issued this mesoscale discussion at Jun 12, 2004, 10:48 AM CDT for 4 counties in Illinois; 22 counties in Indiana; 90 counties in Kentucky. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 12, 2004, 10:48 AM CDT (15:48 UTC)
- Expired
- Jun 12, 2004, 1:15 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 116 counties
Gallatin County, IL, Hardin County, IL, Massac County, IL, Pope County, IL, Clark County, IN, Crawford County, IN, Dubois County, IN, Floyd County, IN, Gibson County, IN, Harrison County, IN, Jackson County, IN, Jefferson County, IN, Jennings County, IN, Lawrence County, IN, Martin County, IN, Ohio County, IN, Orange County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Scott County, IN, Spencer County, IN, Switzerland County, IN, Vanderburgh County, IN, Warrick County, IN, Washington County, IN, Adair County, KY, Anderson County, KY, Bath County, KY, Boone County, KY, Bourbon County, KY, Boyle County, KY, Bracken County, KY, Breathitt County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Caldwell County, KY, Campbell County, KY, Carroll County, KY, Casey County, KY, Christian County, KY, Clark County, KY, Clay County, KY, Crittenden County, KY, Daviess County, KY, Edmonson County, KY, Elliott 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, Henderson County, KY, Henry County, KY, Hopkins County, KY, Jackson County, KY, Jefferson County, KY, Jessamine County, KY, Johnson County, KY, Kenton County, KY, Knott County, KY, Larue County, KY, Laurel County, KY, Lee County, KY, Leslie County, KY, Lincoln County, KY, Livingston County, KY, Lyon County, KY, Madison County, KY, Magoffin County, KY, Marion County, KY, Marshall County, KY, Mason County, KY, McCracken County, KY, McLean County, KY, Meade County, KY, Menifee County, KY, Mercer County, KY, Metcalfe County, KY, Montgomery County, KY, Morgan County, KY, Muhlenberg County, KY, Nelson County, KY, Nicholas County, KY, Ohio County, KY, Oldham County, KY, Owen County, KY, Owsley County, KY, Pendleton County, KY, Perry 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, Union County, KY, Warren County, KY, Washington County, KY, Webster County, KY, Wolfe County, KY, Woodford County, KY
The radar
The Louisville radar (KLVX), 37 km from the middle of the area, began a volume at 15:40 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
Nashville Metro, TN (KBNA), launched 12:00Z, 3.8 hours before the alert went out and 183 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
- 1896 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 911 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 91 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
528 ACUS11 KWNS 121549 SWOMCD SPC MCD 121548 KYZ000-OHZ000-INZ000-ILZ000-121815- MESOSCALE DISCUSSION 1213 NWS STORM PREDICTION CENTER NORMAN OK 1048 AM CDT SAT JUN 12 2004 AREAS AFFECTED...SRN IND...KY CONCERNING...SEVERE THUNDERSTORM POTENTIAL VALID 121548Z - 121815Z THUNDERSTORM INTENSITY EXPECTED TO INCREASE ACROSS SRN IND AND MUCH OF KY THROUGH THIS AFTERNOON. WW WILL LIKELY BE REQUIRED BY EARLY THIS AFTERNOON. LONG-LIVED THUNDERSTORM CLUSTERS CONTINUE ALONG AND NEAR ELONGATED OUTFLOW BOUNDARY EXTENDING FROM S-CENTRAL OH WSWWD ALONG THE OHIO RIVER INTO SRN MO. AIR MASS ALONG AND SOUTH OF THIS OUTFLOW BOUNDARY IS BECOMING INCREASINGLY UNSTABLE ACROSS FAR SRN IND AND MUCH OF KY. DAYTIME HEATING AND SURFACE DEWPOINTS IN THE LOW 70S HAVE CONTRIBUTED TO 100MB MLCAPE VALUES OF 2000-2500 J/KG AS OF 15Z...AND CIN IS MINIMAL. WSWLY SFC-6KM SHEAR OF 20-30 KT PER LOUISVILLE VAD AND REGIONAL ETA FORECAST SOUNDINGS THROUGH MID-AFTERNOON WILL LIKELY FAVOR CONTINUATION OF MULTICELLULAR STORM CLUSTERS...WITH REGENERATION OF THUNDERSTORMS ALONG LEADING OUTFLOW BOUNDARIES. IF STRONGER COLD POOLS CAN DEVELOP...STORMS WILL LIKELY BECOME BETTER ORGANIZED WITH A THREAT FOR DAMAGING WINDS. OTHERWISE...EMBEDDED STRONG CORES WILL POSE A THREAT OF LARGE HAIL ACROSS FAR SRN IND AND MUCH OF KY THROUGH THE AFTERNOON HOURS. IF STORM ORGANIZATION AND INTENSITY CONTINUES TO INCREASE...WW WILL LIKELY BE NEEDED. ..BANACOS.. 06/12/2004 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...RLX...JKL...ILN...LMK...IND...PAH... 37578843 38408767 38938649 39028557 39128440 38718385 38038274 37248278 36918375 37008552 36838756 36808877 36918901 37278883
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 9:35 PM CDT | Severe Thunderstorm Watch | SPC | Henderson, Mercer | 4 hr |
| Jun 11, 10:04 PM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, DeKalb, Grundy, Jo Daviess and 10 more | 56 min |
| Jun 11, 11:00 PM CDT | Tornado Watch | SPC | Bureau, Carroll, DeKalb, DuPage, Ford, Grundy and 15 more | 5 hr |
| Jun 12, 1:48 AM CDT | Mesoscale Discussion | SPC | Boone, Bureau, Carroll, Cook, DeKalb, DuPage and 19 more | 87 min |
| Jun 12, 3:08 AM CDT | Mesoscale Discussion | SPC | Cook, DeKalb, DuPage, Grundy, Iroquois, Kane and 7 more | 97 min |
| Jun 12, 3:45 PM CDT | Severe Thunderstorm Watch | SPC | Henderson, Mercer, Rock Island, Warren | 5 hr |
| Jun 12, 3:51 PM CDT | Mesoscale Discussion | SPC | Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 11 more | 84 min |
| Jun 12, 4:15 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Gallatin, Hardin, Jackson, Johnson, Massac and 5 more | 5 hr |
| Jun 12, 6:08 PM CDT | Mesoscale Discussion | SPC | Alexander, Gallatin, Hardin, Jackson, Johnson, Massac and 5 more | 37 min |
| Jun 12, 11:10 AM CDT | Severe Thunderstorm Watch | SPC | Clark, Crawford, Floyd, Harrison, Orange, Perry and 2 more | 5 hr |
| Jun 12, 1:35 PM CDT | Severe Thunderstorm Watch | SPC | Fulton | 5 hr |
| Jun 12, 1:54 PM CDT | Mesoscale Discussion | SPC | Adair, Allen, Anderson, Barren, Bath, Bell and 68 more | 2 hr |
| Jun 12, 3:14 PM CDT | Mesoscale Discussion | SPC | Fulton | 2 hr |
| Jun 12, 3:30 PM CDT | Mesoscale Discussion | SPC | Adair, Allen, Barren, Bath, Bell, Bourbon and 48 more | 90 min |
Nearby
Mesoscale Discussions in Kentucky, 2004Mesoscale Discussions in Indiana, 2004Mesoscale Discussions in Illinois, 2004Every mesoscale discussion in 2004
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.