Alert archive / Michigan / Mesoscale Discussions in 2006

Mesoscale Discussion 1713

August 2, 20064 states

The Storm Prediction Center issued this mesoscale discussion at Aug 2, 2006, 5:52 PM CDT for 4 states. It was in force for 113 min.

The area

The outline as issued.

The facts

Issued
Aug 2, 2006, 5:52 PM CDT (22:52 UTC)
Expired
Aug 2, 2006, 7:45 PM CDT
In force
113 min
Issued by
the Storm Prediction Center
All 84 counties

Jackson County, IA, Boone County, IL, Carroll County, IL, Cook County, IL, DeKalb County, IL, DuPage County, IL, Jo Daviess County, IL, Kane County, IL, Kendall County, IL, Lake County, IL, Lee County, IL, McHenry County, IL, Ogle County, IL, Stephenson County, IL, Whiteside County, IL, Winnebago County, IL, Allegan County, MI, Arenac County, MI, Barry County, MI, Bay County, MI, Berrien County, MI, Branch County, MI, Calhoun County, MI, Cass County, MI, Clare County, MI, Clinton County, MI, Eaton County, MI, Genesee County, MI, Gladwin County, MI, Gratiot County, MI, Huron County, MI, Ingham County, MI, Ionia County, MI, Iosco County, MI, Isabella County, MI, Jackson County, MI, Kalamazoo County, MI, Kent County, MI, Lake County, MI, Lapeer County, MI, Livingston County, MI, Macomb County, MI, Mason County, MI, Mecosta County, MI, Midland County, MI, Missaukee County, MI, Montcalm County, MI, Muskegon County, MI, Newaygo County, MI, Oakland County, MI, Oceana County, MI, Ogemaw County, MI, Osceola County, MI, Ottawa County, MI, Roscommon County, MI, Saginaw County, MI, Saint Clair County, MI, Saint Joseph County, MI, Sanilac County, MI, Shiawassee County, MI, Tuscola County, MI, Van Buren County, MI, Washtenaw County, MI, Columbia County, WI, Dane County, WI, Dodge County, WI, Fond du Lac County, WI, Grant County, WI, Green County, WI, Green Lake County, WI, Iowa County, WI, Jefferson County, WI, Kenosha County, WI, Lafayette County, WI, Milwaukee County, WI, Ozaukee County, WI, Racine County, WI, Richland County, WI, Rock County, WI, Sauk County, WI, Sheboygan County, WI, Walworth County, WI, Washington County, WI, Waukesha County, WI

The radar

The Grand Rapids radar (KGRR), 93 km from the middle of the area, began a volume at 22:52 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.9 hours before the alert went out and 213 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, Green Bay/Straub, WI at 12:00Z on 2006-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 463 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, Green Bay/Straub, WI at 12:00Z on 2006-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 119 square meters per square second.19395878Sfc1 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
463 J/kg
Mixed-layer CIN
-109 J/kg
Mixed-layer LCL
781 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
119 m²/s²
0-3 km storm-relative helicity
130 m²/s²
Significant tornado parameter
0.2
Supercell composite
2.6

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
Aug 2, 12:42 PM CDTMesoscale DiscussionSPCCarroll, Jo Daviess, Ogle, Stephenson, Winnebago2 hr
Aug 2, 2:40 PM CDTSevere Thunderstorm WatchSPCJo Daviess8 hr
Aug 2, 6:34 PM CDTSevere Thunderstorm WatchSPCCook, DeKalb, DuPage, Grundy, Kane, Kendall and 5 more4 hr
Aug 1, 7:17 PM CDTMesoscale DiscussionSPCAllamakee, Bremer, Buena Vista, Butler, Calhoun, Cerro Gordo and 30 more118 min
Aug 1, 8:00 PM CDTTornado WatchSPCEmmet, Hancock, Humboldt, Kossuth, Palo Alto, Pocahontas and 2 more5 hr
Aug 1, 11:51 PM CDTMesoscale DiscussionSPCBremer, Butler, Calhoun, Carroll, Cerro Gordo, Chickasaw and 11 more54 min
Aug 2, 1:16 AM CDTMesoscale DiscussionSPCAllamakee, Chickasaw, Clayton, Fayette, Winneshiek119 min
Aug 2, 1:16 PM CDTMesoscale DiscussionSPCTaylor119 min
Aug 2, 5:13 PM CDTMesoscale DiscussionSPCAppanoose, Decatur, Ringgold, Taylor, Wayne2 hr
Aug 2, 5:46 PM CDTSevere Thunderstorm WatchSPCDecatur, Fremont, Page, Ringgold, Taylor, Wayne6 hr
Aug 1, 9:47 PM CDTMesoscale DiscussionSPCAlcona, Alpena, Antrim, Cheboygan, Clare, Crawford and 12 more118 min
Aug 2, 4:59 AM CDTMesoscale DiscussionSPCAlcona, Alpena, Antrim, Cheboygan, Crawford, Grand Traverse and 8 more2 hr
Aug 2, 5:25 AM CDTSevere Thunderstorm WatchSPCAlcona, Alpena, Antrim, Benzie, Charlevoix, Cheboygan and 15 more117 min
Aug 2, 7:20 AM CDTMesoscale DiscussionSPCAlcona, Alpena, Iosco, Ogemaw85 min
Aug 2, 10:01 AM CDTMesoscale DiscussionSPCAlcona, Alpena, Antrim, Clare, Crawford, Grand Traverse and 12 more89 min
Aug 2, 10:21 AM CDTSevere Thunderstorm WatchSPCAlcona, Alpena, Antrim, Arenac, Benzie, Charlevoix and 21 more4 hr
Aug 2, 1:18 PM CDTMesoscale DiscussionSPCAlcona, Alpena, Antrim, Arenac, Bay, Benzie and 19 more87 min

Nearby

Mesoscale Discussions in Michigan, 2006Mesoscale Discussions in Wisconsin, 2006Mesoscale Discussions in Illinois, 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.