Alert archive / Kentucky / Mesoscale Discussions in 2011

Mesoscale Discussion 1392

June 26, 20115 states

The Storm Prediction Center issued this mesoscale discussion at Jun 26, 2011, 1:21 AM CDT for 5 states. It was in force for 84 min.

The area

The outline as issued.

The facts

Issued
Jun 26, 2011, 1:21 AM CDT (06:21 UTC)
Expired
Jun 26, 2011, 2:45 AM CDT
In force
84 min
Issued by
the Storm Prediction Center
All 117 counties

Alexander County, IL, Clinton County, IL, Edwards County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Jackson County, IL, Jefferson County, IL, Johnson County, IL, Lawrence County, IL, Massac County, IL, Monroe County, IL, Perry County, IL, Pope County, IL, Pulaski County, IL, Randolph County, IL, Richland County, IL, Saint Clair County, IL, Saline County, IL, Union County, IL, Wabash County, IL, Washington County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Crawford County, IN, Daviess County, IN, Dubois County, IN, Floyd County, IN, Gibson County, IN, Harrison County, IN, Knox County, IN, Lawrence County, IN, Martin County, IN, Orange County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Spencer County, IN, Vanderburgh County, IN, Warrick County, IN, Washington County, IN, Adair County, KY, Allen County, KY, Ballard County, KY, Barren County, KY, Boyle County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Caldwell County, KY, Calloway County, KY, Carlisle County, KY, Casey County, KY, Christian County, KY, Clinton County, KY, Crittenden County, KY, Cumberland County, KY, Daviess County, KY, Edmonson 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, Lincoln County, KY, Livingston County, KY, Logan County, KY, Lyon County, KY, Marion County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Meade County, KY, Metcalfe County, KY, Monroe County, KY, Muhlenberg County, KY, Nelson County, KY, Ohio County, KY, Russell County, KY, Simpson County, KY, Spencer County, KY, Taylor County, KY, Todd County, KY, Trigg County, KY, Union County, KY, Warren County, KY, Washington County, KY, Webster County, KY, Bollinger County, MO, Cape Girardeau County, MO, City of Saint Louis, MO, Jefferson County, MO, Mississippi County, MO, Perry County, MO, Saint Francois County, MO, Saint Louis County, MO, Sainte Genevieve County, MO, Scott County, MO, Cheatham County, TN, Clay County, TN, Henry County, TN, Houston County, TN, Macon County, TN, Montgomery County, TN, Robertson County, TN, Stewart County, TN, Sumner County, TN, Trousdale County, TN, Weakley County, TN

The radar

The Evansville,IN radar (KVWX), 61 km from the middle of the area, began a volume at 06:20 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, 6.4 hours before the alert went out and 205 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 00:00Z on 2011-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 966 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 00:00Z on 2011-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 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
966 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
1153 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
201 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 25, 7:36 PM CDTSevere Thunderstorm WatchSPCAlexander, Bond, Calhoun, Clinton, Edwards, Fayette and 27 more6 hr
Jun 25, 9:30 PM CDTSevere Thunderstorm WatchSPCChristian, Clay, Crawford, Cumberland, Effingham, Jasper and 4 more5 hr
Jun 25, 10:22 PM CDTMesoscale DiscussionSPCGallatin, Hardin, Pope, Saline, Wabash, White and 1 more53 min
Jun 26, 1:58 AM CDTSevere Thunderstorm WatchSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 12 more4 hr
Jun 26, 4:14 AM CDTMesoscale DiscussionSPCMassac91 min
Jun 26, 2:24 PM CDTSevere Thunderstorm WatchSPCMonroe, Randolph5 hr
Jun 26, 6:22 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Greene, Hancock and 9 more83 min
Jun 25, 7:07 PM CDTMesoscale DiscussionSPCAudrain, Barton, Bates, Benton, Boone, Callaway and 46 more113 min
Jun 26, 10:13 AM CDTMesoscale DiscussionSPCBarry, Barton, Bates, Benton, Camden, Cass and 24 more62 min
Jun 26, 12:05 PM CDTSevere Thunderstorm WatchSPCDunklin, Pemiscot8 hr
Jun 26, 2:11 PM CDTMesoscale DiscussionSPCButler, Carter, Dunklin, Howell, Oregon, Pemiscot and 6 more64 min
Jun 26, 3:09 PM CDTMesoscale DiscussionSPCAtchison2 hr
Jun 26, 6:55 PM CDTTornado WatchSPCAdair, Andrew, Atchison, Audrain, Boone, Buchanan and 46 more7 hr
Jun 26, 2:33 PM CDTMesoscale DiscussionSPCBedford, Chester, Decatur, Fayette, Franklin, Giles and 15 more87 min
Jun 26, 5:29 PM CDTMesoscale DiscussionSPCBradley, Chester, Decatur, Fayette, Franklin, Giles and 21 more46 min

Nearby

Mesoscale Discussions in Kentucky, 2011Mesoscale Discussions in Illinois, 2011Mesoscale Discussions in Indiana, 2011Every mesoscale discussion in 2011

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.