Alert archive / Kentucky / Mesoscale Discussions in 2011

Mesoscale Discussion 1290

June 19, 20115 states

The Storm Prediction Center issued this mesoscale discussion at Jun 19, 2011, 4:39 AM CDT for 5 states. It was in force for 66 min.

The area

The outline as issued.

The facts

Issued
Jun 19, 2011, 4:39 AM CDT (09:39 UTC)
Expired
Jun 19, 2011, 5:45 AM CDT
In force
66 min
Issued by
the Storm Prediction Center
All 93 counties

Alexander County, IL, Edwards County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Jefferson County, IL, Johnson County, IL, Massac County, IL, Pope County, IL, Pulaski County, IL, Saline County, IL, Union County, IL, Wabash County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Crawford County, IN, Dubois County, IN, Floyd County, IN, Gibson County, IN, Harrison County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Spencer County, IN, Vanderburgh County, IN, Warrick County, IN, Adair County, KY, Allen County, KY, Anderson County, KY, Ballard County, KY, Barren 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, 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, 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, Shelby 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, Butler County, MO, Cape Girardeau County, MO, Mississippi County, MO, New Madrid County, MO, Scott County, MO, Stoddard County, MO, Wayne County, MO, Macon County, TN, Montgomery County, TN, Robertson County, TN

The radar

The Paducah radar (KPAH), 49 km from the middle of the area, began a volume at 09:39 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 nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 9.7 hours before the alert went out and 198 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 2011-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 340 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 2011-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 193 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
340 J/kg
Mixed-layer CIN
-515 J/kg
Mixed-layer LCL
1700 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
193 m²/s²
0-3 km storm-relative helicity
328 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 18, 7:41 PM CDTMesoscale DiscussionSPCMonroe94 min
Jun 18, 8:26 PM CDTSevere Thunderstorm WatchSPCBond, Calhoun, Clinton, Fayette, Greene, Jackson and 11 more8 hr
Jun 19, 2:14 AM CDTMesoscale DiscussionSPCAlexander, Clinton, Edwards, Franklin, Gallatin, Hamilton and 20 more61 min
Jun 19, 2:55 AM CDTTornado WatchSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more6 hr
Jun 19, 5:46 AM CDTMesoscale DiscussionSPCCrawford, Edwards, Hardin, Jasper, Lawrence, Richland and 1 more59 min
Jun 19, 4:30 PM CDTMesoscale DiscussionSPCMassac, Pulaski30 min
Jun 19, 5:01 PM CDTTornado WatchSPCMassac5 hr
Jun 19, 7:51 AM CDTMesoscale DiscussionSPCAdair, Allen, Barren, Casey, Clinton, Cumberland and 9 more114 min
Jun 19, 12:23 PM CDTMesoscale DiscussionSPCAdair, Bell, Casey, Clinton, Cumberland, Knox and 9 more67 min
Jun 19, 12:52 PM CDTTornado WatchSPCAllen, Bell, Clinton, Cumberland, Knox, Logan and 5 more8 hr
Jun 19, 3:12 PM CDTMesoscale DiscussionSPCClinton, Cumberland, Knox, McCreary, Monroe, Wayne and 1 more2 hr
Jun 19, 6:18 PM CDTMesoscale DiscussionSPCAllen, Clinton, Cumberland, Logan, McCreary, Monroe and 4 more57 min
Jun 18, 11:05 PM CDTMesoscale DiscussionSPCBarton, Bates, Benton, Boone, Callaway, Camden and 34 more85 min
Jun 19, 3:52 PM CDTMesoscale DiscussionSPCBuchanan, Clay, Holt, Platte113 min
Jun 19, 6:21 PM CDTMesoscale DiscussionSPCAndrew, Atchison, Buchanan, Caldwell, Carroll, Clay and 12 more84 min
Jun 19, 6:51 PM CDTTornado WatchSPCAdair, Andrew, Atchison, Buchanan, Caldwell, Carroll and 23 more7 hr

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.