Alert archive / Wisconsin / Severe Thunderstorm Watches in 2008
Severe Thunderstorm Watch 751
The Storm Prediction Center issued this severe thunderstorm watch at Jul 25, 2008, 4:45 PM CDT for 8 counties in Iowa; 7 counties in Minnesota; 22 counties in Wisconsin. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 25, 2008, 4:45 PM CDT (21:45 UTC)
- Expired
- Jul 25, 2008, 9:00 PM CDT
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 37 counties
Allamakee County, IA, Chickasaw County, IA, Clayton County, IA, Fayette County, IA, Floyd County, IA, Howard County, IA, Mitchell County, IA, Winneshiek County, IA, Dodge County, MN, Fillmore County, MN, Houston County, MN, Mower County, MN, Olmsted County, MN, Wabasha County, MN, Winona County, MN, Adams County, WI, Buffalo County, WI, Clark County, WI, Columbia County, WI, Crawford County, WI, Dane County, WI, Grant County, WI, Iowa County, WI, Jackson County, WI, Juneau County, WI, La Crosse County, WI, Marathon County, WI, Marquette County, WI, Monroe County, WI, Portage County, WI, Richland County, WI, Sauk County, WI, Taylor County, WI, Trempealeau County, WI, Vernon County, WI, Waushara County, WI, Wood County, WI
The radar
The La Crosse radar (KARX), 22 km from the middle of the area, began a volume at 21:47 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 20%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 20%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 10%
- Six or more combined severe hail and wind reports
- 50%
Warnings issued inside it
7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 5:03 PM CDT | Severe Thunderstorm Warning | ARX | Wabasha | 57 min |
| Jul 25, 5:54 PM CDT | Severe Thunderstorm Warning | ARX | La Crosse, Monroe | 36 min |
| Jul 25, 6:09 PM CDT | Severe Thunderstorm Warning | ARX | Vernon | 36 min |
| Jul 25, 6:29 PM CDT | Severe Thunderstorm Warning | ARX | Vernon | 19 min |
| Jul 25, 6:44 PM CDT | Severe Thunderstorm Warning | ARX | Crawford, Richland, Vernon | 61 min |
| Jul 25, 7:20 PM CDT | Severe Thunderstorm Warning | ARX | Richland | 25 min |
| Jul 25, 7:30 PM CDT | Severe Thunderstorm Warning | MKX | Iowa | 45 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 12:00Z, 9.8 hours before the alert went out and 202 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
- 1404 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 503 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 61 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.6
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 11:32 PM CDT | Mesoscale Discussion | SPC | Appanoose, Davis | 88 min |
| Jul 25, 11:56 AM CDT | Mesoscale Discussion | SPC | Aitkin, Benton, Carlton, Cook, Kanabec, Lake and 3 more | 2 hr |
| Jul 25, 1:19 PM CDT | Severe Thunderstorm Watch | SPC | Goodhue | 8 hr |
| Jul 25, 3:38 PM CDT | Mesoscale Discussion | SPC | Anoka, Chisago, Ramsey, Washington | 97 min |
Nearby
Severe Thunderstorm Watches in Wisconsin, 2008Severe Thunderstorm Watches in Iowa, 2008Severe Thunderstorm Watches in Minnesota, 2008Every severe thunderstorm watch in 2008
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.