Alert archive / Wisconsin / Mesoscale Discussions in 2013
Mesoscale Discussion 906
The Storm Prediction Center issued this mesoscale discussion at May 31, 2013, 2:12 PM CDT for 7 counties in Minnesota; 28 counties in Wisconsin. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- May 31, 2013, 2:12 PM CDT (19:12 UTC)
- Expired
- May 31, 2013, 4:15 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 80%
All 35 counties
Chisago County, MN, Dakota County, MN, Goodhue County, MN, Pine County, MN, Ramsey County, MN, Wabasha County, MN, Washington County, MN, Barron County, WI, Buffalo County, WI, Burnett County, WI, Chippewa County, WI, Clark County, WI, Douglas County, WI, Dunn County, WI, Eau Claire County, WI, Forest County, WI, Iron County, WI, Jackson County, WI, Langlade County, WI, Lincoln County, WI, Marathon County, WI, Oneida County, WI, Pepin County, WI, Pierce County, WI, Polk County, WI, Portage 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, Wood County, WI
The radar
The La Crosse radar (KARX), 162 km from the middle of the area, began a volume at 19:14 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
Minneapolis, MN (KMPX), launched 12:00Z, 7.2 hours before the alert went out and 189 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.
- Mixed-layer CAPE
- 60 J/kg
- Mixed-layer CIN
- -221 J/kg
- Mixed-layer LCL
- 1191 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 256 m²/s²
- 0-3 km storm-relative helicity
- 269 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 2:35 PM CDT | Severe Thunderstorm Watch | SPC | Anoka, Carlton, Chisago, Cook, Dakota, Dodge and 14 more | 9 hr |
| May 30, 9:14 PM CDT | Mesoscale Discussion | SPC | Brown, Calumet, Kenosha, Kewaunee, Manitowoc, Marinette and 7 more | 61 min |
Nearby
Mesoscale Discussions in Wisconsin, 2013Mesoscale Discussions in Minnesota, 2013Every mesoscale discussion in 2013
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.