Alert archive / Wisconsin / Mesoscale Discussions in 2005

Mesoscale Discussion 2189

September 13, 20054 states

The Storm Prediction Center issued this mesoscale discussion at Sep 13, 2005, 3:25 PM CDT for 4 states. It was in force for 95 min.

The area

The outline as issued.

The facts

Issued
Sep 13, 2005, 3:25 PM CDT (20:25 UTC)
Expired
Sep 13, 2005, 5:00 PM CDT
In force
95 min
Issued by
the Storm Prediction Center
All 60 counties

Allamakee County, IA, Bremer County, IA, Buchanan County, IA, Butler County, IA, Chickasaw County, IA, Clayton County, IA, Delaware County, IA, Dubuque County, IA, Fayette County, IA, Floyd County, IA, Howard County, IA, Jackson County, IA, Jones County, IA, Winneshiek County, IA, Boone County, IL, Carroll County, IL, Jo Daviess County, IL, Ogle County, IL, Stephenson County, IL, Winnebago County, IL, Fillmore County, MN, Houston County, MN, Winona County, MN, Adams County, WI, Brown County, WI, Buffalo County, WI, Calumet County, WI, Clark County, WI, Columbia County, WI, Crawford 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, Jackson County, WI, Jefferson County, WI, Juneau County, WI, La Crosse County, WI, Lafayette County, WI, Marathon County, WI, Marquette County, WI, Monroe County, WI, Outagamie County, WI, Portage County, WI, Richland County, WI, Rock County, WI, Sauk County, WI, Shawano County, WI, Trempealeau County, WI, Vernon County, WI, Walworth County, WI, Washington County, WI, Waukesha County, WI, Waupaca County, WI, Waushara County, WI, Winnebago County, WI, Wood County, WI

The radar

The La Crosse radar (KARX), 74 km from the middle of the area, began a volume at 20:26 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

Davenport, (KDVN), launched 12:00Z, 8.4 hours before the alert went out and 210 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, Davenport, at 12:00Z on 2005-09-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 126 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, Davenport, at 12:00Z on 2005-09-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 199 square meters per square second.193958Sfc1 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
126 J/kg
Mixed-layer CIN
-276 J/kg
Mixed-layer LCL
1589 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
199 m²/s²
0-3 km storm-relative helicity
194 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
Sep 12, 7:45 PM CDTTornado WatchSPCDickinson, Lyon, Osceola6 hr
Sep 12, 9:36 PM CDTMesoscale DiscussionSPCDickinson, Emmet, Lyon, O'Brien, Osceola, Sioux and 1 more84 min
Sep 13, 1:19 AM CDTMesoscale DiscussionSPCHoward, Mitchell, Winneshiek, Worth56 min
Sep 13, 11:19 AM CDTMesoscale DiscussionSPCAdair, Allamakee, Audubon, Benton, Black Hawk, Boone and 48 more116 min
Sep 13, 11:55 AM CDTSevere Thunderstorm WatchSPCAdair, Adams, Allamakee, Appanoose, Benton, Black Hawk and 51 more5 hr
Sep 13, 1:55 PM CDTMesoscale DiscussionSPCFillmore, Houston, Winona2 hr
Sep 13, 2:20 PM CDTSevere Thunderstorm WatchSPCFillmore, Houston, Winona4 hr
Sep 13, 12:34 AM CDTMesoscale DiscussionSPCChippewa, Florence, Forest, Iron, Langlade, Lincoln and 10 more26 min
Sep 13, 5:15 PM CDTSevere Thunderstorm WatchSPCBrown, Calumet, Dodge, Fond du Lac, Green Lake, Jefferson and 13 more2 hr

Nearby

Mesoscale Discussions in Wisconsin, 2005Mesoscale Discussions in Iowa, 2005Mesoscale Discussions in Illinois, 2005Every mesoscale discussion in 2005

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.