Alert archive / Indiana / Mesoscale Discussions in 2016

Mesoscale Discussion 312

March 31, 20164 states

The Storm Prediction Center issued this mesoscale discussion at Mar 31, 2016, 5:09 PM CDT for 4 states. It was in force for 96 min.

The area

The outline as issued.

The facts

Issued
Mar 31, 2016, 5:09 PM CDT (22:09 UTC)
Expired
Mar 31, 2016, 6:45 PM CDT
In force
96 min
Issued by
the Storm Prediction Center
Chance of a watch
40%
All 68 counties

Alexander County, IL, Edwards County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Johnson County, IL, Lawrence County, IL, Massac County, IL, Pope County, IL, Pulaski County, IL, Saline County, IL, Union County, IL, Wabash County, IL, White County, IL, Williamson County, IL, Bartholomew County, IN, Brown County, IN, Crawford County, IN, Daviess County, IN, Decatur County, IN, Dubois County, IN, Fayette County, IN, Franklin County, IN, Gibson County, IN, Greene County, IN, Hancock County, IN, Henry County, IN, Jackson County, IN, Jennings County, IN, Johnson County, IN, Knox County, IN, Lawrence County, IN, Marion County, IN, Martin County, IN, Monroe County, IN, Morgan County, IN, Orange County, IN, Owen County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Rush County, IN, Scott County, IN, Shelby County, IN, Spencer County, IN, Union County, IN, Vanderburgh County, IN, Warrick County, IN, Washington County, IN, Wayne County, IN, Ballard County, KY, Caldwell County, KY, Carlisle County, KY, Crittenden County, KY, Daviess County, KY, Graves County, KY, Hancock County, KY, Henderson County, KY, Hopkins County, KY, Livingston County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Union County, KY, Webster County, KY, Mississippi County, MO, Scott County, MO

The radar

The Evansville,IN radar (KVWX), 50 km from the middle of the area, began a volume at 22:13 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, 10.2 hours before the alert went out and 235 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 2016-03-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 2016-03-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 86 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
1358 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
86 m²/s²
0-3 km storm-relative helicity
66 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 31, 10:46 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 21 more89 min
Mar 31, 12:36 PM CDTMesoscale DiscussionSPCBond, Champaign, Christian, Clark, Clay, Clinton and 46 more84 min
Mar 31, 10:26 AM CDTMesoscale DiscussionSPCCalloway, Fulton, Graves, Hickman3 hr
Mar 31, 10:58 AM CDTSevere Thunderstorm WatchSPCBallard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 14 more5 hr
Mar 31, 2:14 PM CDTMesoscale DiscussionSPCButler, Caldwell, Calloway, Christian, Graves, Hopkins and 9 more91 min
Mar 31, 3:48 PM CDTMesoscale DiscussionSPCLogan, Simpson, Warren87 min
Mar 31, 3:59 PM CDTSevere Thunderstorm WatchSPCAdair, Allen, Barren, Casey, Clinton, Cumberland and 9 more5 hr
Mar 31, 5:49 PM CDTMesoscale DiscussionSPCAdair, Allen, Barren, Boyle, Breathitt, Casey and 28 more56 min
Mar 30, 7:44 PM CDTSevere Thunderstorm WatchSPCBarry, Barton, Camden, Cedar, Dade, Dallas and 9 more4 hr
Mar 30, 8:37 PM CDTMesoscale DiscussionSPCBarry, Barton, Cedar, Dade, Jasper, Lawrence and 3 more53 min
Mar 30, 10:48 PM CDTMesoscale DiscussionSPCDallas, Greene, Laclede, Lawrence, Newton, Polk and 1 more57 min

Nearby

Mesoscale Discussions in Indiana, 2016Mesoscale Discussions in Kentucky, 2016Mesoscale Discussions in Illinois, 2016Every mesoscale discussion in 2016

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.