Alert archive / Indiana / Mesoscale Discussions in 2010

Mesoscale Discussion 1013

June 18, 20104 states

The Storm Prediction Center issued this mesoscale discussion at Jun 18, 2010, 6:56 PM CDT for 4 states. It was in force for 94 min.

The area

The outline as issued.

The facts

Issued
Jun 18, 2010, 6:56 PM CDT (23:56 UTC)
Expired
Jun 18, 2010, 8:30 PM CDT
In force
94 min
Issued by
the Storm Prediction Center
All 91 counties

Champaign County, IL, Edgar County, IL, Vermilion County, IL, Adams County, IN, Allen County, IN, Blackford County, IN, Boone County, IN, Clay County, IN, Clinton County, IN, DeKalb County, IN, Delaware County, IN, Fayette County, IN, Fountain County, IN, Grant County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Howard County, IN, Huntington County, IN, Jay County, IN, Johnson County, IN, LaGrange County, IN, Madison County, IN, Marion County, IN, Miami County, IN, Montgomery County, IN, Morgan County, IN, Noble County, IN, Owen County, IN, Parke County, IN, Putnam County, IN, Randolph County, IN, Rush County, IN, Shelby County, IN, Steuben County, IN, Tippecanoe County, IN, Tipton County, IN, Union County, IN, Vermillion County, IN, Vigo County, IN, Wabash County, IN, Warren County, IN, Wayne County, IN, Wells County, IN, Whitley County, IN, Barry County, MI, Branch County, MI, Calhoun County, MI, Clinton County, MI, Eaton County, MI, Genesee County, MI, Hillsdale County, MI, Ingham County, MI, Ionia County, MI, Jackson County, MI, Kalamazoo County, MI, Kent County, MI, Lenawee County, MI, Livingston County, MI, Macomb County, MI, Monroe County, MI, Oakland County, MI, Saint Joseph County, MI, Shiawassee County, MI, Washtenaw County, MI, Wayne County, MI, Allen County, OH, Auglaize County, OH, Champaign County, OH, Clark County, OH, Darke County, OH, Defiance County, OH, Fulton County, OH, Greene County, OH, Hancock County, OH, Hardin County, OH, Henry County, OH, Logan County, OH, Lucas County, OH, Mercer County, OH, Miami County, OH, Montgomery County, OH, Paulding County, OH, Preble County, OH, Putnam County, OH, Shelby County, OH, Van Wert County, OH, Williams County, OH, Wood County, OH, Wyandot County, OH

The radar

The Northern Indiana radar (KIWX), 23 km from the middle of the area, began a volume at 23:59 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

Detroit, MI (KDTX), launched 12:00Z, 11.9 hours before the alert went out and 220 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, Detroit, MI at 12:00Z on 2010-06-18Temperature 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, Detroit, MI at 12:00Z on 2010-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 113 square meters per square second.1939Sfc1 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
1056 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
113 m²/s²
0-3 km storm-relative helicity
92 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 17, 9:01 PM CDTSevere Thunderstorm WatchSPCRock Island6 hr
Jun 17, 9:43 PM CDTMesoscale DiscussionSPCStephenson62 min
Jun 17, 10:57 PM CDTMesoscale DiscussionSPCRock Island93 min
Jun 17, 11:00 PM CDTMesoscale DiscussionSPCJo Daviess, Stephenson, Winnebago60 min
Jun 17, 11:23 PM CDTSevere Thunderstorm WatchSPCBoone, Jo Daviess, Stephenson, Winnebago4 hr
Jun 18, 2:33 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 22 more27 min
Jun 18, 9:06 AM CDTSevere Thunderstorm WatchSPCBureau, Carroll, Hancock, Henderson, Henry, Jo Daviess and 7 more7 hr
Jun 18, 10:41 AM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, DuPage, Fulton and 24 more2 hr
Jun 18, 12:14 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, DuPage, Fulton and 26 more61 min
Jun 18, 12:29 PM CDTSevere Thunderstorm WatchSPCBoone, Bureau, Carroll, Cook, DeKalb, DuPage and 33 more9 hr
Jun 18, 5:06 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Champaign, Cook, DeKalb and 32 more54 min
Jun 18, 5:30 PM CDTSevere Thunderstorm WatchSPCChampaign, Clark, Coles, Crawford, Cumberland, DeWitt and 9 more6 hr
Jun 18, 5:45 PM CDTMesoscale DiscussionSPCMercer, Rock Island60 min
Jun 18, 2:47 PM CDTMesoscale DiscussionSPCAdams, Allen, Cass, DeKalb, Elkhart, Fulton and 15 more58 min
Jun 18, 3:32 PM CDTSevere Thunderstorm WatchSPCAllen, Cass, DeKalb, Elkhart, Fulton, Huntington and 13 more8 hr

Nearby

Mesoscale Discussions in Indiana, 2010Mesoscale Discussions in Ohio, 2010Mesoscale Discussions in Michigan, 2010Every mesoscale discussion in 2010

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.