Alert archive / Kentucky / Mesoscale Discussions in 2005
Mesoscale Discussion 366
The Storm Prediction Center issued this mesoscale discussion at Mar 23, 2005, 11:41 AM EST for 5 states. It was in force for 64 min.
The area
The outline as issued.
The facts
- Issued
- Mar 23, 2005, 11:41 AM EST (16:41 UTC)
- Expired
- Mar 23, 2005, 12:45 PM EST
- In force
- 64 min
- Issued by
- the Storm Prediction Center
All 97 counties
Bell County, KY, Boyd County, KY, Breathitt County, KY, Carter County, KY, Clay County, KY, Elliott County, KY, Estill County, KY, Floyd County, KY, Harlan County, KY, Jackson County, KY, Johnson County, KY, Knott County, KY, Knox County, KY, Laurel County, KY, Lawrence County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Magoffin County, KY, Martin County, KY, McCreary County, KY, Menifee County, KY, Morgan County, KY, Owsley County, KY, Perry County, KY, Pike County, KY, Powell County, KY, Rowan County, KY, Whitley County, KY, Wolfe County, KY, Avery County, NC, Buncombe County, NC, Cherokee County, NC, Clay County, NC, Graham County, NC, Haywood County, NC, Jackson County, NC, Macon County, NC, Madison County, NC, Mitchell County, NC, Swain County, NC, Yancey County, NC, Anderson County, TN, Blount County, TN, Bradley County, TN, Campbell County, TN, Carter County, TN, Claiborne County, TN, Cocke County, TN, Grainger County, TN, Greene County, TN, Hamblen County, TN, Hancock County, TN, Hawkins County, TN, Jefferson County, TN, Johnson County, TN, Knox County, TN, Loudon County, TN, McMinn County, TN, Meigs County, TN, Monroe County, TN, Morgan County, TN, Polk County, TN, Roane County, TN, Scott County, TN, Sevier County, TN, Sullivan County, TN, Unicoi County, TN, Union County, TN, Washington County, TN, Bland County, VA, Buchanan County, VA, City of Bristol, VA, City of Norton, VA, Dickenson County, VA, Lee County, VA, Russell County, VA, Scott County, VA, Smyth County, VA, Tazewell County, VA, Washington County, VA, Wise County, VA, Boone County, WV, Cabell County, WV, Clay County, WV, Fayette County, WV, Kanawha County, WV, Lincoln County, WV, Logan County, WV, McDowell County, WV, Mercer County, WV, Mingo County, WV, Nicholas County, WV, Putnam County, WV, Raleigh County, WV, Wayne County, WV, Wyoming County, WV
The radar
The Knoxville radar (KMRX), 72 km from the middle of the area, began a volume at 16:45 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 nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 4.7 hours before the alert went out and 297 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
- 426 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 101 m²/s²
- 0-3 km storm-relative helicity
- 110 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 ACUS11 KWNS 231642 SWOMCD SPC MCD 231641 WVZ000-VAZ000-NCZ000-TNZ000-KYZ000-OHZ000-GAZ000-231745- MESOSCALE DISCUSSION 0366 NWS STORM PREDICTION CENTER NORMAN OK 1041 AM CST WED MAR 23 2005 AREAS AFFECTED...ERN KY/SRN WV/ERN TN/SWRN VA CONCERNING...SEVERE THUNDERSTORM POTENTIAL VALID 231641Z - 231745Z THUNDERSTORMS WILL INCREASE IN AREAL COVERAGE OVER THE NEXT SEVERAL HOURS ACROSS ERN KY/ERN TN INTO SRN WV AND SWRN VA. HAIL WILL BE THE PRIMARY THREAT...AND A WW MAY BE REQUIRED. REGIONAL RADARS/LIGHTNING DATA INDICATED THUNDERSTORMS HAVE DEVELOPED ACROSS ERN KY WITHIN DESTABILIZING ENVIRONMENT. SURFACE HEATING BENEATH VERY COLD MID LEVEL TEMPERATURES /-20 TO -22 C AT 500 MB/ HAS RESULTED IN STEEPENING LAPSE RATES AND MLCAPE AOB 500 J/KG PER OBJECTIVE ANALYSES...WHILE 15Z RUC INDICATED MUCAPE VALUES UP TO AROUND 1000 J/KG. ADDITIONAL SURFACE HEATING INTO THE AFTERNOON AND LARGE SCALE ASCENT AHEAD OF THE MID-UPPER LOW... CURRENTLY LOCATED OVER THE LOWER OH VALLEY...ARE EXPECTED TO SUPPORT MORE THUNDERSTORM DEVELOPMENT. HAIL AND DAMAGING WINDS WILL BE THE PRIMARY THREAT WITH THIS ACTIVITY. LIMITING FACTOR ATTM FOR A WATCH ISSUANCE IS THE FORECAST OF MARGINAL INSTABILITY. IF INSTABILITY SHOWS SIGNS OF GREATER VALUES THAN CURRENTLY EXPECTED...THEN A WW WOULD LIKELY BE REQUIRED FOR ERN KY/ERN TN INTO SRN WV/SWRN VA. ..PETERS.. 03/23/2005 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...RNK...RLX...GSP...MRX...JKL...FFC...ILN...LMK...OHX... 36728462 37998387 38558295 38658062 36998108 35468241 34988385 35158491
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 22, 8:47 PM EST | Mesoscale Discussion | SPC | Calloway, Carlisle, Fulton, Graves, Hickman, Marshall and 1 more | 88 min |
| Mar 23, 12:42 PM EST | Mesoscale Discussion | SPC | Anson, Beaufort, Bertie, Bladen, Brunswick, Camden and 48 more | 93 min |
| Mar 23, 4:50 PM EST | Mesoscale Discussion | SPC | Alamance, Anson, Beaufort, Bertie, Cabarrus, Camden and 60 more | 55 min |
| Mar 23, 5:25 PM EST | Severe Thunderstorm Watch | SPC | Alamance, Beaufort, Bertie, Camden, Caswell, Chatham and 35 more | 6 hr |
| Mar 22, 11:11 PM EST | Mesoscale Discussion | SPC | Bedford, Bledsoe, Cannon, Cheatham, Coffee, Davidson and 22 more | 2 hr |
Nearby
Mesoscale Discussions in Kentucky, 2005Mesoscale Discussions in Tennessee, 2005Mesoscale Discussions in West Virginia, 2005Every mesoscale discussion in 2005
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.