Alert archive / Wisconsin / Mesoscale Discussions in 2024
Mesoscale Discussion 2012
The Storm Prediction Center issued this mesoscale discussion at Aug 27, 2024, 5:57 AM CDT for Dakota County, Ramsey County, Washington County, Minnesota; 7 counties in Wisconsin. It was in force for 93 min.
The area
The outline as issued.
The facts
- Issued
- Aug 27, 2024, 5:57 AM CDT (10:57 UTC)
- Expired
- Aug 27, 2024, 7:30 AM CDT
- In force
- 93 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch unlikely
- Chance of a watch
- 20%
Counties Dakota County, MN, Ramsey County, MN, Washington County, MN, Barron County, WI, Chippewa County, WI, Dunn County, WI, Eau Claire County, WI, Pierce County, WI, Rusk County, WI, Saint Croix County, WI
The radar
The Minneapolis radar (KMPX), 106 km from the middle of the area, began a volume at 11:01 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
Minneapolis, MN (KMPX), launched 00:00Z, 11.0 hours before the alert went out and 108 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
- 4426 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 1062 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 110 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 5.4
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 8:41 PM CDT | Severe Thunderstorm Watch | SPC | Wabasha | 7 hr |
| Aug 26, 9:28 PM CDT | Mesoscale Discussion | SPC | Brown, Chippewa, Cottonwood, Jackson, Kandiyohi, Lac qui Parle and 12 more | 92 min |
| Aug 26, 10:55 PM CDT | Severe Thunderstorm Watch | SPC | Cottonwood, Jackson, Lincoln, Lyon, Murray, Nobles and 2 more | 6 hr |
| Aug 27, 12:41 AM CDT | Mesoscale Discussion | SPC | Cottonwood, Jackson, Lincoln, Lyon, Murray, Nobles and 2 more | 94 min |
| Aug 27, 3:46 AM CDT | Mesoscale Discussion | SPC | Anoka, Blue Earth, Brown, Carver, Cottonwood, Dakota and 26 more | 59 min |
| Aug 26, 7:51 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calumet, Chippewa, Clark, Eau Claire and 19 more | 84 min |
| Aug 26, 9:19 PM CDT | Mesoscale Discussion | SPC | Barron, Buffalo, Burnett, Chippewa, Clark, Dunn and 19 more | 86 min |
| Aug 26, 11:11 PM CDT | Mesoscale Discussion | SPC | Brown, Calumet, Florence, Forest, Kewaunee, Langlade and 12 more | 64 min |
| Aug 27, 11:25 AM CDT | Mesoscale Discussion | SPC | Brown, Calumet, Jefferson, Kenosha, Kewaunee, Manitowoc and 8 more | 3 hr |
| Aug 27, 12:04 PM CDT | Severe Thunderstorm Watch | SPC | Kenosha, Milwaukee, Ozaukee, Racine, Rock, Walworth and 1 more | 2 hr |
| Aug 27, 4:47 PM CDT | Mesoscale Discussion | SPC | Kenosha, Walworth | 88 min |
| Aug 27, 5:09 PM CDT | Severe Thunderstorm Watch | SPC | Kenosha, Racine, Walworth | 6 hr |
Nearby
Mesoscale Discussions in Wisconsin, 2024Mesoscale Discussions in Minnesota, 2024Every mesoscale discussion in 2024
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.