Alert archive / Kentucky / Mesoscale Discussions in 2016
Mesoscale Discussion 314
The Storm Prediction Center issued this mesoscale discussion at Mar 31, 2016, 5:49 PM CDT for 34 counties in Kentucky; 13 counties in Tennessee. It was in force for 56 min.
The area
The outline as issued.
The facts
- Issued
- Mar 31, 2016, 5:49 PM CDT (22:49 UTC)
- Expired
- Mar 31, 2016, 6:45 PM CDT
- In force
- 56 min
- Issued by
- the Storm Prediction Center
All 47 counties
Adair County, KY, Allen County, KY, Barren County, KY, Boyle County, KY, Breathitt County, KY, Casey County, KY, Clay County, KY, Clinton County, KY, Cumberland County, KY, Estill County, KY, Garrard County, KY, Green County, KY, Hart County, KY, Jackson County, KY, Knox County, KY, Laurel County, KY, Lee County, KY, Leslie County, KY, Lincoln County, KY, Madison County, KY, Marion County, KY, McCreary County, KY, Metcalfe County, KY, Monroe County, KY, Owsley County, KY, Powell County, KY, Pulaski County, KY, Rockcastle County, KY, Russell County, KY, Simpson County, KY, Taylor County, KY, Wayne County, KY, Whitley County, KY, Wolfe County, KY, Clay County, TN, DeKalb County, TN, Fentress County, TN, Jackson County, TN, Macon County, TN, Overton County, TN, Pickett County, TN, Putnam County, TN, Scott County, TN, Smith County, TN, Sumner County, TN, Trousdale County, TN, Wilson County, TN
The radar
The Jackson,KY radar (KJKL), 141 km from the middle of the area, began a volume at 22:51 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
Nashville Metro, TN (KBNA), launched 12:00Z, 10.8 hours before the alert went out and 193 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
- 834 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 673 m²/s²
- 0-3 km storm-relative helicity
- 836 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
046
ACUS11 KWNS 312249
SWOMCD
SPC MCD 312249
KYZ000-TNZ000-312345-
MESOSCALE DISCUSSION 0314
NWS STORM PREDICTION CENTER NORMAN OK
0549 PM CDT THU MAR 31 2016
AREAS AFFECTED...NRN MIDDLE TN...S-CNTRL/SERN KY
CONCERNING...SEVERE THUNDERSTORM WATCH 71...
VALID 312249Z - 312345Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 71
CONTINUES.
SUMMARY...PRIMARY STRONG TO SVR WIND GUST THREAT WITHIN WW 71 IS
ASSOCIATED WITH A SMALL LINE SEGMENT MOVING THROUGH S-CNTRL KY. THIS
THREAT MAY EXTEND SLIGHTLY E OF WW 71 INTO SERN KY...BUT DRIER AIR
ACROSS THIS AREA SHOULD LEAD TO A GENERAL REDUCTION IN TSTM
INTENSITY WITH EWD PROGRESSION.
DISCUSSION...A LONG-LIVED LINE SEGMENT CONTINUES TO PROGRESS EWD
ACROSS S-CNTRL KY...WITH A PRIMARY THREAT OF STRONG TO SVR WIND
GUSTS. THIS ACTIVITY IS RAPIDLY APPROACHING THE ERN EDGE OF WW
71...AND THE ACCOMPANYING WIND THREAT MAY EXTEND FARTHER E INTO
PARTS OF SERN KY. HOWEVER...RECENT SFC OBS CONFIRM DRIER AIR IS
PRESENT ACROSS THIS AREA WITH SFC DEW POINTS IN THE LOW-MID 50S F.
GIVEN THE RELATIVELY LIMITED BUOYANCY HERE...THE WIND THREAT SHOULD
BECOME MORE LOCALIZED WITH EWD PROGRESSION...AND A NEW DOWNSTREAM WW
IS NOT ANTICIPATED.
..ROGERS.. 03/31/2016
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...MRX...JKL...LMK...OHX...
LAT...LON 37138330 36408423 35938581 36288665 36788670 37498562
37898378 37828303 37138330SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 31, 10:26 AM CDT | Mesoscale Discussion | SPC | Calloway, Fulton, Graves, Hickman | 3 hr |
| Mar 31, 10:58 AM CDT | Severe Thunderstorm Watch | SPC | Ballard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 14 more | 5 hr |
| Mar 31, 2:14 PM CDT | Mesoscale Discussion | SPC | Butler, Caldwell, Calloway, Christian, Graves, Hopkins and 9 more | 91 min |
| Mar 31, 3:48 PM CDT | Mesoscale Discussion | SPC | Logan, Simpson, Warren | 87 min |
| Mar 31, 3:59 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Allen, Barren, Casey, Clinton, Cumberland and 9 more | 5 hr |
| Mar 31, 5:09 PM CDT | Mesoscale Discussion | SPC | Ballard, Caldwell, Carlisle, Crittenden, Daviess, Graves and 10 more | 96 min |
| Mar 31, 2:35 PM CDT | Tornado Watch | SPC | Chester, Decatur, Fayette, Hardeman, Hardin, Henderson and 2 more | 7 hr |
| Mar 31, 5:58 PM CDT | Tornado Watch | SPC | Bedford, Cannon, Coffee, Franklin, Giles, Grundy and 8 more | 7 hr |
| Mar 31, 6:52 PM CDT | Mesoscale Discussion | SPC | Franklin, Giles, Lincoln, Moore | 53 min |
Nearby
Mesoscale Discussions in Kentucky, 2016Mesoscale Discussions in Tennessee, 2016Every mesoscale discussion in 2016
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.