Alert archive / Kentucky / Mesoscale Discussions in 2023

Mesoscale Discussion 974

June 11, 20235 states

The Storm Prediction Center issued this mesoscale discussion at Jun 11, 2023, 1:56 PM CDT for 5 states. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued
Jun 11, 2023, 1:56 PM CDT (18:56 UTC)
Expired
Jun 11, 2023, 4:30 PM CDT
In force
3 hr
Issued by
the Storm Prediction Center
Concerning
Severe potential...watch likely
Chance of a watch
80%
All 95 counties

Clay County, AR, Craighead County, AR, Crittenden County, AR, Cross County, AR, Greene County, AR, Mississippi County, AR, Poinsett County, AR, St. Francis County, AR, Crawford County, IN, Dubois County, IN, Floyd County, IN, Harrison County, IN, Perry County, IN, Spencer County, IN, Warrick County, IN, Adair County, KY, Allen County, KY, Barren County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Caldwell County, KY, Calloway County, KY, Christian County, KY, Crittenden County, KY, Daviess County, KY, Edmonson County, KY, Fulton 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, Larue County, KY, Logan County, KY, Lyon County, KY, Marion County, KY, Marshall County, KY, McLean County, KY, Meade County, KY, Metcalfe County, KY, Monroe County, KY, Muhlenberg County, KY, Nelson County, KY, Ohio County, KY, Simpson County, KY, Spencer County, KY, Taylor County, KY, Todd County, KY, Trigg County, KY, Warren County, KY, Washington County, KY, Webster County, KY, Dunklin County, MO, New Madrid County, MO, Pemiscot County, MO, Benton County, TN, Carroll County, TN, Cheatham County, TN, Chester County, TN, Crockett County, TN, Davidson County, TN, Decatur County, TN, Dickson County, TN, Dyer County, TN, Fayette County, TN, Gibson County, TN, Hardeman County, TN, Haywood County, TN, Henderson County, TN, Henry County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Lake County, TN, Lauderdale County, TN, Macon County, TN, Madison County, TN, Montgomery County, TN, Obion County, TN, Perry County, TN, Robertson County, TN, Shelby County, TN, Stewart County, TN, Sumner County, TN, Tipton County, TN, Trousdale County, TN, Weakley County, TN, Williamson County, TN, Wilson County, TN

The radar

The Paducah radar (KPAH), 74 km from the middle of the area, began a volume at 18:59 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, 6.9 hours before the alert went out and 165 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.

Skew-T log-pSkew-T log-p diagram, Nashville Metro, TN at 12:00Z on 2023-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 77 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Nashville Metro, TN at 12:00Z on 2023-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 183 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
77 J/kg
Mixed-layer CIN
-164 J/kg
Mixed-layer LCL
1030 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
183 m²/s²
0-3 km storm-relative helicity
199 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 11, 2:47 PM CDTSevere Thunderstorm WatchSPCArkansas, Baxter, Boone, Clay, Cleburne, Craighead and 28 more7 hr
Jun 11, 4:43 PM CDTMesoscale DiscussionSPCArkansas, Crittenden, Lee, Monroe, Phillips, St. Francis92 min
Jun 11, 5:17 PM CDTMesoscale DiscussionSPCDesha58 min
Jun 11, 2:26 PM CDTSevere Thunderstorm WatchSPCAdair, Allen, Anderson, Barren, Boyle, Bullitt and 37 more7 hr
Jun 11, 3:34 PM CDTSevere Thunderstorm WatchSPCBell, Breathitt, Clay, Estill, Harlan, Jackson and 19 more6 hr
Jun 11, 5:48 PM CDTMesoscale DiscussionSPCMcCreary57 min
Jun 11, 6:22 PM CDTMesoscale DiscussionSPCBradley, Franklin, Giles, Hamilton, Lincoln, Marion and 2 more23 min
Jun 11, 6:46 PM CDTSevere Thunderstorm WatchSPCBradley, Franklin, Hamilton, Lincoln, Marion, Moore and 2 more7 hr

Nearby

Mesoscale Discussions in Kentucky, 2023Mesoscale Discussions in Tennessee, 2023Mesoscale Discussions in Arkansas, 2023Every mesoscale discussion in 2023

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.