Alert archive / Kentucky / Mesoscale Discussions in 2004
Mesoscale Discussion 2467
The Storm Prediction Center issued this mesoscale discussion at Nov 24, 2004, 2:56 PM CST for 5 states. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Nov 24, 2004, 2:56 PM CST (20:56 UTC)
- Expired
- Nov 24, 2004, 5:00 PM CST
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 112 counties
Edwards County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Pope County, IL, Saline County, IL, Wabash County, IL, Wayne County, IL, White County, IL, Bartholomew County, IN, Brown County, IN, Clark County, IN, Dearborn County, IN, Decatur County, IN, Dubois County, IN, Fayette County, IN, Franklin County, IN, Gibson County, IN, Jackson County, IN, Jefferson County, IN, Jennings County, IN, Lawrence County, IN, Monroe County, IN, Ohio County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Ripley County, IN, Scott County, IN, Spencer County, IN, Switzerland County, IN, Union County, IN, Vanderburgh County, IN, Warrick County, IN, Washington County, IN, Adair County, KY, Allen County, KY, Anderson County, KY, Boone County, KY, Boyle County, KY, Butler County, KY, Caldwell County, KY, Calloway County, KY, Carroll County, KY, Casey County, KY, Christian County, KY, Crittenden County, KY, Daviess County, KY, Franklin County, KY, Gallatin County, KY, Garrard County, KY, Hancock County, KY, Henderson County, KY, Henry County, KY, Hopkins County, KY, Lincoln County, KY, Livingston County, KY, Logan County, KY, Lyon County, KY, Marshall County, KY, McLean County, KY, Mercer County, KY, Monroe County, KY, Muhlenberg County, KY, Ohio County, KY, Oldham County, KY, Owen County, KY, Shelby County, KY, Simpson County, KY, Todd County, KY, Trigg County, KY, Trimble County, KY, Union County, KY, Webster County, KY, Butler County, OH, Hamilton County, OH, Montgomery County, OH, Preble County, OH, Bedford County, TN, Benton County, TN, Cannon County, TN, Cheatham County, TN, Coffee County, TN, Davidson County, TN, Decatur County, TN, DeKalb County, TN, Dickson County, TN, Giles County, TN, Hardin County, TN, Henry County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Jackson County, TN, Lawrence County, TN, Lewis County, TN, Lincoln County, TN, Macon County, TN, Marshall County, TN, Maury County, TN, Montgomery County, TN, Moore County, TN, Perry County, TN, Robertson County, TN, Rutherford County, TN, Smith County, TN, Stewart County, TN, Sumner County, TN, Trousdale County, TN, Wayne County, TN, Williamson County, TN, Wilson County, TN
The radar
The Louisville radar (KLVX), 47 km from the middle of the area, began a volume at 20:58 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, 8.9 hours before the alert went out and 167 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
- 21 J/kg
- Mixed-layer CIN
- -283 J/kg
- Mixed-layer LCL
- 867 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 436 m²/s²
- 0-3 km storm-relative helicity
- 481 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
007 ACUS11 KWNS 242056 SWOMCD SPC MCD 242056 OHZ000-KYZ000-INZ000-TNZ000-ILZ000-242300- MESOSCALE DISCUSSION 2467 NWS STORM PREDICTION CENTER NORMAN OK 0256 PM CST WED NOV 24 2004 AREAS AFFECTED...PORTIONS WRN/MID TN...WRN/CENTRAL KY...SRN INDIANA...SWRN OH CONCERNING...TORNADO WATCH 902...903... VALID 242056Z - 242300Z DEEPENING SFC CYCLONE IS ANALYZED OVER SRN INDIANA JUST SSE OF IND...AND SHOULD CONTINUE TRACKING INTO WRN OH. SFC WARM FRONT WILL LIFT NWD ACROSS MORE OF SWRN OH FOLLOWED BY WEAKLY BUOYANT WARM SECTOR AIR MASS...WITH MLCAPES LESS THAN 500 J/KG. STRONGEST LOW LEVEL HODOGRAPHS WILL REMAIN AHEAD OF SFC LOW PATH OVER INDIANA/SWRN OH. THOUGH AIR MASS REMAINS MARGINALLY UNSTABLE...SOME UPDRAFTS HAVE REMAINED UPRIGHT ENOUGH TO WARRANT WARNINGS...AND KINEMATIC PROFILES CONTINUE TO BE QUITE FAVORABLE INVOF WARM FRONT. MODIFIED MODEL SOUNDINGS AND 18Z ILN RAOB SUGGEST JUST 1-2 DEG C COOLING NEAR SFC OVER REMAINDER WW AREAS REMOVES SBCAPE...THEREFORE...PRIND THREAT SHOULD DIMINISH AFTER ANOTHER COUPLE HOURS. FARTHER S...AIR MASS ACROSS MIDDLE/ERN TN IS NOT EXPECTED TO DESTABILIZE MUCH FURTHER IN LOW LEVELS...SO WW ISSUANCE THERE MAY NOT BE NECESSARY. VEERED FLOW WILL LIMIT CONVERGENCE...ALTHOUGH TCU PERSIST IN SRN EXTENT OF CONVECTIVE ARC. OPPORTUNITIES FOR ADDITIONAL/SUSTAINED SFC-BASED CONVECTIVE DEVELOPMENT OVER TN APPEAR TO BE SHRINKING AS DIABATIC HEATING PASSES PEAK...AND AS ISALLOBARIC FORCING ASSOCIATED WITH OH VALLEY CYCLONE KEEPS BOUNDARY LAYER FLOW SWLY. STILL...WW SHOULD BE MAINTAINED UNTIL PROBABILITIES FOR DEVELOPMENT DROP SUBSTANTIALLY...IN DEFERENCE TO STRENGTH OF AMBIENT SHEAR AND DYNAMIC COOLING ALOFT. ..EDWARDS.. 11/24/2004 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...JKL...ILN...LMK...OHX...IND...HUN...PAH...ILX...MEG...LSX... 37508406 36638656 39188654 40098406 35078618 35048827 38618891 38668663
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 24, 6:50 AM CST | Mesoscale Discussion | SPC | Adams, Brown, Cass, DeWitt, Ford, Fulton and 20 more | 5 hr |
| Nov 24, 10:16 AM CST | Mesoscale Discussion | SPC | Gallatin, Hardin, Johnson, Massac, Pope, Pulaski and 1 more | 2 hr |
| Nov 24, 11:30 AM CST | Tornado Watch | SPC | Edwards, Gallatin, Hamilton, Hardin, Pope, Saline and 3 more | 6 hr |
| Nov 24, 12:31 PM CST | Mesoscale Discussion | SPC | Brown, Bureau, Cass, Champaign, Christian, DeKalb and 32 more | 5 hr |
| Nov 24, 12:55 PM CST | Mesoscale Discussion | SPC | Edwards, Gallatin, Hamilton, Hardin, Pope, Saline and 3 more | 95 min |
| Nov 24, 1:25 PM CST | Tornado Watch | SPC | Bartholomew, Brown, Clark, Crawford, Dearborn, Decatur and 16 more | 5 hr |
| Nov 24, 5:02 PM CST | Mesoscale Discussion | SPC | Bartholomew, Brown, Clark, Crawford, Dearborn, Decatur and 12 more | 28 min |
| Nov 24, 5:25 PM CST | Tornado Watch | SPC | Dearborn, Decatur, Fayette, Franklin, Ohio, Ripley and 4 more | 4 hr |
| Nov 23, 9:00 PM CST | Mesoscale Discussion | SPC | Bedford, Benton, Cannon, Carroll, Cheatham, Chester and 32 more | 2 hr |
| Nov 23, 9:20 PM CST | Tornado Watch | SPC | Franklin, Giles, Grundy, Hardin, Lawrence, Lincoln and 3 more | 7 hr |
Nearby
Mesoscale Discussions in Kentucky, 2004Mesoscale Discussions in Tennessee, 2004Mesoscale Discussions in Indiana, 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.