Alert archive / Kentucky / Mesoscale Discussions in 2019

Mesoscale Discussion 754

May 23, 20196 states

The Storm Prediction Center issued this mesoscale discussion at May 23, 2019, 2:39 PM CDT for 6 states. It was in force for 96 min.

The area

The outline as issued.

The facts

Issued
May 23, 2019, 2:39 PM CDT (19:39 UTC)
Expired
May 23, 2019, 4:15 PM CDT
In force
96 min
Issued by
the Storm Prediction Center
Chance of a watch
40%
All 178 counties

Alexander County, IL, Edwards County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Jackson County, IL, Johnson County, IL, Massac County, IL, Perry County, IL, Pope County, IL, Pulaski County, IL, Randolph County, IL, Saline County, IL, Union County, IL, Wabash County, IL, White County, IL, Williamson County, IL, Bartholomew County, IN, Brown County, IN, Clark County, IN, Crawford County, IN, Daviess County, IN, Dearborn County, IN, Decatur County, IN, Dubois County, IN, Floyd County, IN, Franklin County, IN, Gibson County, IN, Harrison County, IN, Jackson County, IN, Jefferson County, IN, Jennings County, IN, Johnson County, IN, Knox County, IN, Lawrence County, IN, Martin County, IN, Monroe County, IN, Ohio County, IN, Orange County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Ripley County, IN, Scott County, IN, Shelby County, IN, Spencer County, IN, Switzerland County, IN, Vanderburgh County, IN, Warrick County, IN, Washington County, IN, Anderson County, KY, Ballard County, KY, Bath County, KY, Boone County, KY, Bourbon County, KY, Boyd County, KY, Boyle County, KY, Bracken County, KY, Breathitt County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Caldwell County, KY, Calloway County, KY, Campbell County, KY, Carlisle County, KY, Carroll County, KY, Carter County, KY, Christian County, KY, Clark County, KY, Crittenden County, KY, Daviess County, KY, Edmonson County, KY, Elliott County, KY, Estill County, KY, Fayette County, KY, Fleming County, KY, Floyd County, KY, Franklin County, KY, Fulton County, KY, Gallatin County, KY, Garrard County, KY, Grant County, KY, Graves County, KY, Grayson County, KY, Green County, KY, Greenup County, KY, Hancock County, KY, Hardin County, KY, Harrison County, KY, Hart County, KY, Henderson County, KY, Henry County, KY, Hickman County, KY, Hopkins County, KY, Jackson County, KY, Jefferson County, KY, Jessamine County, KY, Johnson County, KY, Kenton County, KY, Knott County, KY, Larue County, KY, Lawrence County, KY, Lee County, KY, Lewis County, KY, Lincoln County, KY, Livingston County, KY, Logan County, KY, Lyon County, KY, Madison County, KY, Magoffin County, KY, Marion County, KY, Marshall County, KY, Martin County, KY, Mason County, KY, McCracken County, KY, McLean County, KY, Meade County, KY, Menifee County, KY, Mercer County, KY, Montgomery County, KY, Morgan County, KY, Muhlenberg County, KY, Nelson County, KY, Nicholas County, KY, Ohio County, KY, Oldham County, KY, Owen County, KY, Owsley County, KY, Pendleton County, KY, Pike County, KY, Powell County, KY, Robertson County, KY, Rowan County, KY, Scott County, KY, Shelby County, KY, Spencer County, KY, Taylor County, KY, Todd County, KY, Trigg County, KY, Trimble County, KY, Union County, KY, Warren County, KY, Washington County, KY, Webster County, KY, Wolfe County, KY, Woodford County, KY, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Carter County, MO, Iron County, MO, Madison County, MO, Mississippi County, MO, New Madrid County, MO, Perry County, MO, Reynolds County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Scott County, MO, Stoddard County, MO, Wayne County, MO, Adams County, OH, Brown County, OH, Butler County, OH, Clermont County, OH, Clinton County, OH, Hamilton County, OH, Highland County, OH, Jackson County, OH, Lawrence County, OH, Pike County, OH, Scioto County, OH, Warren County, OH, Cabell County, WV, Lincoln County, WV, Wayne County, WV

The radar

The Louisville radar (KLVX), 74 km from the middle of the area, began a volume at 19:43 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

Lincoln, IL (KILX), launched 12:00Z, 7.7 hours before the alert went out and 284 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, Lincoln, IL at 12:00Z on 2019-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Lincoln, IL at 12:00Z on 2019-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 145 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1108 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
145 m²/s²
0-3 km storm-relative helicity
203 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
May 22, 8:12 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Fulton, Hancock, Henderson and 14 more63 min
May 22, 9:43 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Bureau, Calhoun, Cass and 37 more92 min
May 22, 10:26 PM CDTTornado WatchSPCBond, Brown, Calhoun, Cass, Champaign, Christian and 45 more8 hr
May 23, 1:23 AM CDTMesoscale DiscussionSPCBond, Calhoun, Cass, Champaign, Christian, Clinton and 37 more97 min
May 23, 3:50 AM CDTMesoscale DiscussionSPCClark, Edgar55 min
May 23, 2:01 AM CDTSevere Thunderstorm WatchSPCAllen, Blackford, Boone, Carroll, Cass, Clay and 43 more4 hr
May 23, 4:37 PM CDTSevere Thunderstorm WatchSPCBath, Bourbon, Boyd, Bracken, Carter, Clark and 22 more5 hr
May 23, 4:44 PM CDTMesoscale DiscussionSPCAnderson, Bath, Bourbon, Boyd, Bracken, Campbell and 30 more61 min
May 22, 7:32 PM CDTMesoscale DiscussionSPCBarton, Bates, Benton, Boone, Callaway, Camden and 21 more88 min
May 22, 9:34 PM CDTMesoscale DiscussionSPCBarton, Cedar, Dade, Dallas, Hickory, Jasper and 2 more56 min
May 22, 9:44 PM CDTTornado WatchSPCBarry, Barton, Benton, Camden, Cedar, Christian and 23 more8 hr
May 23, 12:59 AM CDTMesoscale DiscussionSPCBarry, Camden, Christian, Dade, Dallas, Greene and 12 more91 min
May 23, 7:53 AM CDTMesoscale DiscussionSPCAshtabula, Carroll, Columbiana, Geauga, Holmes, Mahoning and 4 more2 hr
May 23, 10:52 AM CDTMesoscale DiscussionSPCBerkeley, Grant, Hampshire, Hardy, Jefferson, Mineral and 2 more83 min
May 23, 12:02 PM CDTSevere Thunderstorm WatchSPCBerkeley, Jefferson, Morgan5 hr

Nearby

Mesoscale Discussions in Kentucky, 2019Mesoscale Discussions in Indiana, 2019Mesoscale Discussions in Illinois, 2019Every mesoscale discussion in 2019

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.