Alert archive / Kentucky / Mesoscale Discussions in 2016
Mesoscale Discussion 593
The Storm Prediction Center issued this mesoscale discussion at May 10, 2016, 7:42 PM CDT for 15 counties in Kentucky; 8 counties in Tennessee. It was in force for 93 min.
The area
The outline as issued.
The facts
- Issued
- May 10, 2016, 7:42 PM CDT (00:42 UTC)
- Expired
- May 10, 2016, 9:15 PM CDT
- In force
- 93 min
- Issued by
- the Storm Prediction Center
All 23 counties
Adair County, KY, Allen County, KY, Barren County, KY, Calloway County, KY, Christian County, KY, Clinton County, KY, Cumberland County, KY, Logan County, KY, Metcalfe County, KY, Monroe County, KY, Russell County, KY, Simpson County, KY, Todd County, KY, Trigg County, KY, Warren County, KY, Clay County, TN, Henry County, TN, Macon County, TN, Montgomery County, TN, Robertson County, TN, Stewart County, TN, Sumner County, TN, Weakley County, TN
The radar
The Ft Campbell radar (KHPX), 20 km from the middle of the area, began a volume at 00:42 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 00:00Z, 0.7 hours before the alert went out and 76 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
- 1257 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 1467 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 116 m²/s²
- 0-3 km storm-relative helicity
- 276 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 6.3
The text
As transmitted.
647 ACUS11 KWNS 110043 SWOMCD SPC MCD 110042 KYZ000-TNZ000-110215- MESOSCALE DISCUSSION 0593 NWS STORM PREDICTION CENTER NORMAN OK 0742 PM CDT TUE MAY 10 2016 AREAS AFFECTED...WESTERN/SOUTH-CENTRAL KY AND NORTHERN TN CONCERNING...TORNADO WATCH 162... VALID 110042Z - 110215Z THE SEVERE WEATHER THREAT FOR TORNADO WATCH 162 CONTINUES. SUMMARY...SCATTERED SUPERCELLS CAPABLE OF LARGE HAIL AND TORNADOES WILL PERSIST PARTICULARLY ACROSS FAR SOUTHWEST/SOUTH-CENTRAL KY THROUGH MID/LATE EVENING. TORNADO WATCH 162 CONTINUES UNTIL 04Z. DISCUSSION...AS OF 0030Z/730 PM CDT...MULTIPLE SUPERCELLS SCATTERED ACROSS SOUTHWEST INTO SOUTH-CENTRAL KY...PARTICULARLY JUST NORTH OF HOPKINSVILLE AND ALONG THE CUMBERLAND PARKWAY BETWEEN GLASGOW AND SOMERSET...CONTINUE TO THRIVE WITHIN THE SOUTHERN EDGE OF A BAROCLINIC GRADIENT /VIA EARLY-DAY PRECIPITATION/ WHERE TEMPERATURES REMAIN IN THE UPPER 70S F COINCIDENT WITH MIDDLE 60S F SURFACE DEWPOINTS. THE HOPKINSVILLE WSR-88D VWP CONTINUES TO REFLECT STRONG DEEP-LAYER SHEAR /50-KT 0-6 KM/ ACCENTUATED BY UPWARDS OF 200+ M2/S2 0-1 KM SRH. SCENARIO WILL REMAIN FAVORABLE FOR SUPERCELLS CAPABLE OF LARGE HAIL/TORNADOES OVER THE NEXT COUPLE OF HOURS...PARTICULARLY ACROSS FAR SOUTHWEST/SOUTH-CENTRAL KY AND POSSIBLY FAR NORTHERN TN. ..GUYER.. 05/11/2016 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...JKL...LMK...OHX...PAH...MEG... LAT...LON 36288894 37138769 37268458 36548517 36288894
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 10, 11:39 PM CDT | Mesoscale Discussion | SPC | Bell, Breathitt, Clay, Estill, Floyd, Harlan and 18 more | 96 min |
| May 11, 2:40 AM CDT | Mesoscale Discussion | SPC | Allen, Logan, Monroe, Simpson, Todd | 95 min |
| May 11, 12:10 PM CDT | Severe Thunderstorm Watch | SPC | Daviess, Henderson, McLean, Union, Webster | 12 hr |
| May 11, 5:30 PM CDT | Mesoscale Discussion | SPC | Anderson, Boyle, Breckinridge, Bullitt, Butler, Casey and 27 more | 2 hr |
| May 11, 6:30 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Allen, Anderson, Barren, Bourbon, Boyle and 53 more | 7 hr |
| May 10, 10:22 PM CDT | Mesoscale Discussion | SPC | Anderson, Campbell, Cumberland, Davidson, DeKalb, Fentress and 16 more | 53 min |
| May 10, 10:45 PM CDT | Severe Thunderstorm Watch | SPC | Anderson, Campbell, Cannon, Cheatham, Claiborne, Clay and 28 more | 7 hr |
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.