Alert archive / Indiana / Mesoscale Discussions in 2018

Mesoscale Discussion 699

June 10, 20185 counties in Illinois; 30 counties in Indiana; Hancock County, Meade County, Kentucky

The Storm Prediction Center issued this mesoscale discussion at Jun 10, 2018, 5:20 PM CDT for 5 counties in Illinois; 30 counties in Indiana; Hancock County, Meade County, Kentucky. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued
Jun 10, 2018, 5:20 PM CDT (22:20 UTC)
Expired
Jun 10, 2018, 6:45 PM CDT
In force
85 min
Issued by
the Storm Prediction Center
All 37 counties

Edwards County, IL, Lawrence County, IL, Wabash County, IL, Wayne County, IL, White County, IL, Bartholomew County, IN, Brown County, IN, Clark County, IN, Crawford County, IN, Daviess County, IN, Decatur County, IN, Dubois County, IN, Floyd County, IN, Gibson County, IN, Greene County, IN, Hancock County, IN, Harrison County, IN, Jackson County, IN, Jennings County, IN, Johnson County, IN, Knox County, IN, Lawrence County, IN, Martin County, IN, Orange County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Rush County, IN, Scott County, IN, Shelby County, IN, Spencer County, IN, Sullivan County, IN, Vanderburgh County, IN, Warrick County, IN, Washington County, IN, Hancock County, KY, Meade County, KY

The radar

The Indianapolis radar (KIND), 94 km from the middle of the area, began a volume at 22:19 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

Lincoln, IL (KILX), launched 12:00Z, 10.3 hours before the alert went out and 203 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 2018-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 585 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, Lincoln, IL at 12:00Z on 2018-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 362 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
585 J/kg
Mixed-layer CIN
-193 J/kg
Mixed-layer LCL
611 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
362 m²/s²
0-3 km storm-relative helicity
382 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.2

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 9, 7:43 PM CDTSevere Thunderstorm WatchSPCBureau, Carroll, Henry, Jo Daviess, Lee, Ogle and 5 more6 hr
Jun 9, 10:17 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Henry, Jo Daviess, LaSalle and 8 more118 min
Jun 9, 11:44 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Henry, Jo Daviess, LaSalle and 8 more2 hr
Jun 10, 10:04 AM CDTMesoscale DiscussionSPCBond, Cass, Champaign, Christian, Clark, Clay and 43 more116 min
Jun 10, 12:17 PM CDTMesoscale DiscussionSPCBond, Brown, Cass, Christian, Clark, Clay and 34 more118 min
Jun 10, 12:46 PM CDTSevere Thunderstorm WatchSPCCass, Champaign, Christian, Clark, Clay, Coles and 29 more7 hr
Jun 10, 2:42 PM CDTMesoscale DiscussionSPCChampaign, Christian, Clark, Clay, Coles, Crawford and 20 more93 min
Jun 10, 2:56 PM CDTSevere Thunderstorm WatchSPCEdwards, Wabash, Wayne, White5 hr
Jun 10, 4:30 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Greene, Jersey, Macoupin and 3 more90 min

Nearby

Mesoscale Discussions in Indiana, 2018Mesoscale Discussions in Illinois, 2018Mesoscale Discussions in Kentucky, 2018Every mesoscale discussion in 2018

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.