Alert archive / Kentucky / Mesoscale Discussions in 2022

Mesoscale Discussion 324

March 23, 202229 counties in Kentucky; 11 counties in Tennessee; Lee County, Virginia

The Storm Prediction Center issued this mesoscale discussion at Mar 23, 2022, 1:52 PM EDT for 29 counties in Kentucky; 11 counties in Tennessee; Lee County, Virginia. It was in force for 83 min.

The area

The outline as issued.

The facts

Issued
Mar 23, 2022, 1:52 PM EDT (17:52 UTC)
Expired
Mar 23, 2022, 3:15 PM EDT
In force
83 min
Issued by
the Storm Prediction Center
Concerning
Severe potential...watch possible
Chance of a watch
40%
All 41 counties

Bath County, KY, Bell County, KY, Breathitt County, KY, Carter County, KY, Clark County, KY, Clay County, KY, Elliott County, KY, Estill County, KY, Fleming County, KY, Harlan County, KY, Jackson County, KY, Knott County, KY, Knox County, KY, Laurel County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Lewis County, KY, Magoffin County, KY, Menifee County, KY, Montgomery County, KY, Morgan County, KY, Owsley County, KY, Perry County, KY, Powell County, KY, Rockcastle County, KY, Rowan County, KY, Whitley County, KY, Wolfe County, KY, Anderson County, TN, Blount County, TN, Campbell County, TN, Claiborne County, TN, Grainger County, TN, Hamblen County, TN, Hancock County, TN, Jefferson County, TN, Knox County, TN, Loudon County, TN, Union County, TN, Lee County, VA

The radar

The Jackson,KY radar (KJKL), 82 km from the middle of the area, began a volume at 17:52 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, 5.9 hours before the alert went out and 273 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 2022-03-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 51 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 2022-03-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 139 square meters per square second.1939587897117136Sfc1 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
51 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
711 m above ground
0-6 km bulk shear
88 kt
0-1 km storm-relative helicity
139 m²/s²
0-3 km storm-relative helicity
338 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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
Mar 23, 12:40 PM EDTMesoscale DiscussionSPCBoone, Carroll, Trimble2 hr
Mar 23, 2:15 PM EDTMesoscale DiscussionSPCMartin, Pike90 min
Mar 23, 2:35 PM EDTTornado WatchSPCBoyd, Carter, Elliott, Floyd, Greenup, Johnson and 6 more7 hr
Mar 23, 4:14 PM EDTMesoscale DiscussionSPCCampbell2 hr
Mar 23, 4:35 PM EDTMesoscale DiscussionSPCBoyd, Johnson, Lawrence, Martin, Pike115 min

Nearby

Mesoscale Discussions in Kentucky, 2022Mesoscale Discussions in Tennessee, 2022Mesoscale Discussions in Virginia, 2022Every mesoscale discussion in 2022

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.