Alert archive / Minnesota / Mesoscale Discussions in 2006

Mesoscale Discussion 281

March 13, 20067 counties in Michigan; 24 counties in Minnesota; 24 counties in Wisconsin

The Storm Prediction Center issued this mesoscale discussion at Mar 13, 2006, 8:57 AM EST for 7 counties in Michigan; 24 counties in Minnesota; 24 counties in Wisconsin. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Mar 13, 2006, 8:57 AM EST (13:57 UTC)
Expired
Mar 13, 2006, 2:00 PM EST
In force
5 hr
Issued by
the Storm Prediction Center
All 55 counties

Baraga County, MI, Dickinson County, MI, Gogebic County, MI, Houghton County, MI, Iron County, MI, Marquette County, MI, Ontonagon County, MI, Anoka County, MN, Blue Earth County, MN, Carver County, MN, Chisago County, MN, Dakota County, MN, Dodge County, MN, Faribault County, MN, Fillmore County, MN, Freeborn County, MN, Goodhue County, MN, Hennepin County, MN, Le Sueur County, MN, Mower County, MN, Nicollet County, MN, Olmsted County, MN, Ramsey County, MN, Rice County, MN, Scott County, MN, Sibley County, MN, Steele County, MN, Wabasha County, MN, Waseca County, MN, Washington County, MN, Winona County, MN, Ashland County, WI, Barron County, WI, Buffalo County, WI, Chippewa County, WI, Clark County, WI, Dunn County, WI, Eau Claire County, WI, Florence County, WI, Forest County, WI, Iron County, WI, Jackson County, WI, Lincoln County, WI, Oneida County, WI, Pepin County, WI, Pierce County, WI, Polk County, WI, Price County, WI, Rusk County, WI, Saint Croix County, WI, Sawyer County, WI, Taylor County, WI, Trempealeau County, WI, Vilas County, WI, Washburn County, WI

The radar

The La Crosse radar (KARX), 150 km from the middle of the area, began a volume at 13:58 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

Green Bay/Straub, WI (KGRB), launched 12:00Z, 2.0 hours before the alert went out and 261 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 2006-03-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 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 2006-03-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 421 square meters per square second.1939587897117136Sfc1 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
474 m above ground
0-6 km bulk shear
116 kt
0-1 km storm-relative helicity
421 m²/s²
0-3 km storm-relative helicity
551 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
Mar 12, 11:39 PM ESTMesoscale DiscussionSPCBranch, Cass, Saint Joseph96 min
Mar 13, 12:23 AM ESTTornado WatchSPCAllegan, Barry, Berrien, Branch, Calhoun, Cass and 7 more7 hr
Mar 13, 3:16 AM ESTMesoscale DiscussionSPCBarry, Bay, Branch, Calhoun, Clinton, Eaton and 26 more89 min
Mar 13, 3:51 AM ESTTornado WatchSPCLenawee, Livingston, Macomb, Monroe, Oakland, Washtenaw and 1 more7 hr
Mar 13, 10:39 AM ESTMesoscale DiscussionSPCBarry, Branch, Calhoun, Cass, Clinton, Eaton and 20 more66 min
Mar 13, 10:44 AM ESTTornado WatchSPCBarry, Branch, Calhoun, Clinton, Eaton, Genesee and 22 more5 hr
Mar 13, 3:19 PM ESTMesoscale DiscussionSPCLapeer, Macomb, Monroe, Oakland, Wayne56 min
Mar 12, 8:15 PM ESTMesoscale DiscussionSPCDane, Grant, Green, Iowa, Jefferson, Lafayette and 2 more90 min
Mar 12, 9:42 PM ESTTornado WatchSPCKenosha, Racine, Rock, Walworth7 hr
Mar 13, 2:47 AM ESTMesoscale DiscussionSPCAdams, Calumet, Columbia, Crawford, Dane, Dodge and 21 more58 min
Mar 13, 3:06 AM ESTSevere Thunderstorm WatchSPCColumbia, Crawford, Dane, Dodge, Fond du Lac, Grant and 17 more2 hr

Nearby

Mesoscale Discussions in Minnesota, 2006Mesoscale Discussions in Wisconsin, 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.