Alert archive / Indiana / Mesoscale Discussions in 2006

Mesoscale Discussion 20

January 2, 200627 counties in Indiana; 7 counties in Michigan; 10 counties in Ohio

The Storm Prediction Center issued this mesoscale discussion at Jan 2, 2006, 1:28 PM EST for 27 counties in Indiana; 7 counties in Michigan; 10 counties in Ohio. It was in force for 92 min.

The area

The outline as issued.

The facts

Issued
Jan 2, 2006, 1:28 PM EST (18:28 UTC)
Expired
Jan 2, 2006, 3:00 PM EST
In force
92 min
Issued by
the Storm Prediction Center
All 44 counties

Adams County, IN, Allen County, IN, Blackford County, IN, Carroll County, IN, Cass County, IN, Clinton County, IN, DeKalb County, IN, Elkhart County, IN, Fulton County, IN, Grant County, IN, Howard County, IN, Huntington County, IN, Jay County, IN, Kosciusko County, IN, LaGrange County, IN, LaPorte County, IN, Marshall County, IN, Miami County, IN, Noble County, IN, Pulaski County, IN, Saint Joseph County, IN, Starke County, IN, Steuben County, IN, Tipton County, IN, Wabash County, IN, Wells County, IN, Whitley County, IN, Branch County, MI, Calhoun County, MI, Cass County, MI, Hillsdale County, MI, Kalamazoo County, MI, Lenawee County, MI, Saint Joseph County, MI, Allen County, OH, Auglaize County, OH, Defiance County, OH, Fulton County, OH, Henry County, OH, Mercer County, OH, Paulding County, OH, Putnam County, OH, Van Wert County, OH, Williams County, OH

The radar

The Northern Indiana radar (KIWX), 27 km from the middle of the area, began a volume at 18:31 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, 6.5 hours before the alert went out and 238 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 2006-01-02Temperature 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 2006-01-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 244 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
560 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
244 m²/s²
0-3 km storm-relative helicity
290 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
Jan 2, 6:38 AM ESTTornado WatchSPCGibson, Pike, Posey, Spencer, Vanderburgh, Warrick6 hr
Jan 2, 8:14 AM ESTMesoscale DiscussionSPCClay, Daviess, Fountain, Greene, Knox, Montgomery and 8 more31 min
Jan 2, 8:35 AM ESTTornado WatchSPCClay, Daviess, Fountain, Greene, Knox, Martin and 9 more4 hr
Jan 2, 8:57 AM ESTMesoscale DiscussionSPCGibson, Pike, Posey, Spencer, Vanderburgh, Warrick93 min
Jan 2, 11:21 AM ESTMesoscale DiscussionSPCBartholomew, Boone, Brown, Carroll, Clay, Clinton and 31 more84 min
Jan 2, 12:30 PM ESTMesoscale DiscussionSPCBartholomew, Brown, Clark, Clay, Crawford, Daviess and 32 more90 min
Jan 2, 12:59 PM ESTSevere Thunderstorm WatchSPCBartholomew, Boone, Brown, Clark, Clay, Crawford and 41 more7 hr
Jan 2, 3:53 PM ESTMesoscale DiscussionSPCBartholomew, Boone, Brown, Clark, Clay, Crawford and 39 more97 min
Jan 2, 5:55 PM ESTMesoscale DiscussionSPCGallia, Lawrence95 min
Jan 2, 6:08 PM ESTSevere Thunderstorm WatchSPCLawrence5 hr

Nearby

Mesoscale Discussions in Indiana, 2006Mesoscale Discussions in Ohio, 2006Mesoscale Discussions in Michigan, 2006Every mesoscale discussion in 2006

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.