Alert archive / Kentucky / Mesoscale Discussions in 2006
Mesoscale Discussion 976
The Storm Prediction Center issued this mesoscale discussion at May 25, 2006, 4:44 PM CDT for 4 states. It was in force for 91 min.
The area
The outline as issued.
The facts
- Issued
- May 25, 2006, 4:44 PM CDT (21:44 UTC)
- Expired
- May 25, 2006, 6:15 PM CDT
- In force
- 91 min
- Issued by
- the Storm Prediction Center
All 100 counties
Alexander County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Jackson County, IL, Johnson County, IL, Massac County, IL, Perry County, IL, Pope County, IL, Pulaski County, IL, Saline County, IL, Union County, IL, White County, IL, Williamson County, IL, Crawford County, IN, Dubois County, IN, Floyd County, IN, Gibson County, IN, Harrison County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Spencer County, IN, Vanderburgh County, IN, Warrick County, IN, Adair County, KY, Allen County, KY, Anderson County, KY, Ballard County, KY, Barren County, KY, Boyle County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Caldwell County, KY, Calloway County, KY, Carlisle County, KY, Casey County, KY, Christian County, KY, Clark County, KY, Crittenden County, KY, Cumberland County, KY, Daviess County, KY, Edmonson County, KY, Fayette County, KY, Franklin County, KY, Fulton County, KY, Garrard County, KY, Graves County, KY, Grayson County, KY, Green County, KY, Hancock County, KY, Hardin County, KY, Hart County, KY, Henderson County, KY, Hickman County, KY, Hopkins County, KY, Jefferson County, KY, Jessamine County, KY, Larue County, KY, Lincoln County, KY, Livingston County, KY, Logan County, KY, Lyon County, KY, Madison County, KY, Marion County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Meade County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Muhlenberg County, KY, Nelson County, KY, Ohio County, KY, Oldham County, KY, Pulaski County, KY, Rockcastle County, KY, Russell County, KY, Scott County, KY, Shelby County, KY, Simpson County, KY, Spencer County, KY, Taylor County, KY, Todd County, KY, Trigg County, KY, Union County, KY, Warren County, KY, Washington County, KY, Webster County, KY, Woodford County, KY, Bollinger County, MO, Cape Girardeau County, MO, Mississippi County, MO, New Madrid County, MO, Perry County, MO, Scott County, MO, Stoddard County, MO
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, 9.7 hours before the alert went out and 151 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
- 1538 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 975 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 50 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 ACUS11 KWNS 252144 SWOMCD SPC MCD 252144 KYZ000-INZ000-TNZ000-ILZ000-MOZ000-252315- MESOSCALE DISCUSSION 0976 NWS STORM PREDICTION CENTER NORMAN OK 0444 PM CDT THU MAY 25 2006 AREAS AFFECTED...FAR SRN IND...WRN KY...FAR SRN IL...FAR SE MO CONCERNING...TORNADO WATCH 393... VALID 252144Z - 252315Z THE POTENTIAL EXISTS FOR A STRONG TORNADO OR TWO LATE THIS AFTERNOON AND EARLY THIS EVENING ACROSS FAR SRN IND AND WRN KY. ALSO...LARGE HAIL AND WIND DAMAGE WILL BE LIKELY WITH THE STRONGER STORMS. A TORNADO WATCH WILL BE ISSUED SHORTLY ACROSS WRN KY. LATEST SFC ANALYSIS SHOWS A MOIST AXIS EXTENDING NWD ACROSS WRN TN INTO WRN KY WHERE DEWPOINTS ARE IN THE UPPER 60S F TO LOWER 70S F. AS A RESULT...THE AIRMASS IS MODERATELY UNSTABLE SOUTH OF A LINE OF SEVERE STORMS MOVING SEWD THROUGH SRN IND ATTM. REGIONAL WSR-88D VWPS CURRENTLY SHOW MODERATE VERTICAL SHEAR IN PLACE WITH STRONG LOW-LEVEL SHEAR PROFILES. THIS COMBINED WITH RELATIVELY LOW-LCL HEIGHTS WILL BE FAVORABLE FOR TORNADOES WITH SUPERCELLS THAT MOVE SEWD ACROSS FAR SRN IND AND WRN KY NEAR THE OH RIVER THROUGH EARLY EVENING. A STRONG TORNADO OR TWO WILL BE POSSIBLE ESPECIALLY AS THE LOW-LEVEL JET STRENGTHENS EARLY THIS EVENING. LARGE HAIL AND WIND DAMAGE WILL BE LIKELY WITH THE STRONGER STORMS IN THE LINE. IN ADDITION...THE THREAT FOR SUPERCELLS WITH TORNADOES...LARGE HAIL AND WIND DAMAGE SHOULD EXPAND SWD ACROSS MOST OF WRN KY THIS EVENING AS STORM COVERAGE INCREASES AND A LARGE LINEAR MCS DEVELOPS ACROSS THE REGION. ..BROYLES.. 05/25/2006 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...JKL...ILN...LMK...OHX...PAH...LSX... 36658604 36538859 36558984 36969013 37599008 38068952 38408775 38478620 38438473 38098415 37448407 36978423
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 8:59 PM CDT | Mesoscale Discussion | SPC | Edwards, Wabash | 91 min |
| May 25, 12:00 PM CDT | Mesoscale Discussion | SPC | Clark, Clay, Coles, Crawford, Cumberland, Douglas and 10 more | 2 hr |
| May 25, 1:34 PM CDT | Tornado Watch | SPC | Clark, Clay, Crawford, Cumberland, Edgar, Edwards and 11 more | 7 hr |
| May 25, 2:50 PM CDT | Mesoscale Discussion | SPC | Clark, Crawford, Edgar, Edwards, Hamilton, Jasper and 5 more | 85 min |
| May 25, 3:51 PM CDT | Mesoscale Discussion | SPC | Alexander, Johnson, Massac, Pulaski, Union | 54 min |
| May 25, 5:16 PM CDT | Tornado Watch | SPC | Alexander, Gallatin, Hardin, Jackson, Johnson, Massac and 5 more | 8 hr |
| May 25, 2:43 PM CDT | Tornado Watch | SPC | Dearborn, Ohio, Switzerland | 8 hr |
| May 25, 2:21 PM CDT | Mesoscale Discussion | SPC | Bath, Boyd, Bracken, Campbell, Carter, Elliott and 8 more | 54 min |
| May 25, 4:54 PM CDT | Severe Thunderstorm Watch | SPC | Barry, Butler, Carter, Christian, Douglas, Greene and 18 more | 6 hr |
Nearby
Mesoscale Discussions in Kentucky, 2006Mesoscale Discussions in Illinois, 2006Mesoscale Discussions in Indiana, 2006Every mesoscale discussion in 2006
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.