Alert archive / Wisconsin / Mesoscale Discussions in 2006

Mesoscale Discussion 962

May 24, 20064 states

The Storm Prediction Center issued this mesoscale discussion at May 24, 2006, 1:37 PM CDT for 4 states. It was in force for 83 min.

The area

The outline as issued.

The facts

Issued
May 24, 2006, 1:37 PM CDT (18:37 UTC)
Expired
May 24, 2006, 3:00 PM CDT
In force
83 min
Issued by
the Storm Prediction Center
All 50 counties

Allamakee County, IA, Cedar County, IA, Clayton County, IA, Clinton County, IA, Delaware County, IA, Dubuque County, IA, Iowa County, IA, Jackson County, IA, Johnson County, IA, Jones County, IA, Linn County, IA, Muscatine County, IA, Scott County, IA, Washington County, IA, Carroll County, IL, Jo Daviess County, IL, Rock Island County, IL, Stephenson County, IL, Whiteside County, IL, Houston County, MN, Adams County, WI, Barron County, WI, Burnett County, WI, Chippewa County, WI, Clark County, WI, Columbia County, WI, Crawford County, WI, Dane County, WI, Eau Claire County, WI, Grant County, WI, Green County, WI, Iowa County, WI, Jackson County, WI, Juneau County, WI, La Crosse County, WI, Lafayette County, WI, Lincoln County, WI, Marathon County, WI, Marquette County, WI, Monroe County, WI, Portage County, WI, Richland County, WI, Rusk County, WI, Sauk County, WI, Sawyer County, WI, Taylor County, WI, Trempealeau County, WI, Vernon County, WI, Washburn County, WI, Wood County, WI

The radar

The La Crosse radar (KARX), 17 km from the middle of the area, began a volume at 18:37 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, 6.6 hours before the alert went out and 236 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 2006-05-24Temperature 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, Davenport, at 12:00Z on 2006-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -20 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1234 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
-20 m²/s²
0-3 km storm-relative helicity
2 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
May 24, 11:27 AM CDTMesoscale DiscussionSPCAdams, Hancock2 hr
May 24, 12:25 PM CDTTornado WatchSPCAdams, Brown, Calhoun, Greene, Pike7 hr
May 24, 2:23 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Champaign and 37 more97 min
May 24, 2:46 PM CDTTornado WatchSPCBond, Boone, Bureau, Carroll, Cass, Champaign and 63 more7 hr
May 24, 4:26 PM CDTMesoscale DiscussionSPCChampaign, Christian, Clark, Clay, Coles, Cook and 24 more94 min
May 24, 4:42 PM CDTSevere Thunderstorm WatchSPCCook, DuPage, Iroquois, Kankakee, Will5 hr
May 24, 6:18 PM CDTSevere Thunderstorm WatchSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 15 more7 hr
May 24, 6:24 PM CDTMesoscale DiscussionSPCMcHenry96 min
May 24, 6:54 PM CDTSevere Thunderstorm WatchSPCKane, Lake, McHenry4 hr
May 23, 7:57 PM CDTSevere Thunderstorm WatchSPCFremont, Harrison, Mills, Monona, Montgomery, Page and 2 more6 hr
May 23, 10:06 PM CDTMesoscale DiscussionSPCAudubon, Buena Vista, Calhoun, Carroll, Cass, Cherokee and 24 more114 min
May 24, 1:56 AM CDTMesoscale DiscussionSPCDecatur94 min
May 24, 2:20 PM CDTSevere Thunderstorm WatchSPCAllamakee, Clayton, Fayette, Winneshiek6 hr

Nearby

Mesoscale Discussions in Wisconsin, 2006Mesoscale Discussions in Iowa, 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.