Alert archive / Wisconsin / Mesoscale Discussions in 2017
Mesoscale Discussion 753
The Storm Prediction Center issued this mesoscale discussion at May 17, 2017, 6:31 PM CDT for 23 counties in Wisconsin. It was in force for 89 min.
The area
The outline as issued.
The facts
- Issued
- May 17, 2017, 6:31 PM CDT (23:31 UTC)
- Expired
- May 17, 2017, 8:00 PM CDT
- In force
- 89 min
- Issued by
- the Storm Prediction Center
All 23 counties
Adams County, WI, Chippewa County, WI, Clark County, WI, Columbia County, WI, Dodge County, WI, Eau Claire County, WI, Fond du Lac County, WI, Green Lake County, WI, Jackson County, WI, Juneau County, WI, Lincoln County, WI, Marathon County, WI, Marquette County, WI, Outagamie County, WI, Portage County, WI, Rusk County, WI, Sauk County, WI, Shawano County, WI, Taylor County, WI, Waupaca County, WI, Waushara County, WI, Winnebago County, WI, Wood County, WI
The radar
The La Crosse radar (KARX), 123 km from the middle of the area, began a volume at 23:36 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, 11.5 hours before the alert went out and 141 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1435 m above ground
- 0-6 km bulk shear
- 70 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 81 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 |
|---|---|---|---|---|
| May 16, 9:14 PM CDT | Mesoscale Discussion | SPC | Buffalo, Chippewa, Clark, Dunn, Eau Claire, Florence and 18 more | 61 min |
| May 16, 9:47 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Buffalo, Clark, Jackson, Juneau, La Crosse and 14 more | 5 hr |
| May 16, 11:48 PM CDT | Mesoscale Discussion | SPC | Adams, Buffalo, Clark, Eau Claire, Forest, Jackson and 17 more | 117 min |
| May 17, 12:23 PM CDT | Mesoscale Discussion | SPC | Adams, Clark, Columbia, Crawford, Dane, Dodge and 24 more | 97 min |
| May 17, 2:38 PM CDT | Mesoscale Discussion | SPC | Adams, Buffalo, Clark, Crawford, Dunn, Eau Claire and 13 more | 97 min |
| May 17, 3:13 PM CDT | Tornado Watch | SPC | Adams, Brown, Buffalo, Calumet, Chippewa, Clark and 48 more | 9 hr |
| May 17, 6:05 PM CDT | Mesoscale Discussion | SPC | Crawford, Grant | 55 min |
Nearby
Mesoscale Discussions in Wisconsin, 2017Every mesoscale discussion in 2017
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.