Alert archive / Minnesota / Severe Thunderstorm Watches in 2008
Severe Thunderstorm Watch 404
The Storm Prediction Center issued this severe thunderstorm watch at May 31, 2008, 2:51 PM CDT for 8 counties in Iowa; 50 counties in Minnesota. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- May 31, 2008, 2:51 PM CDT (19:51 UTC)
- Expired
- May 31, 2008, 9:00 PM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 58 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, Aitkin County, MN, Anoka County, MN, Becker County, MN, Benton County, MN, Blue Earth County, MN, Carver County, MN, Cass County, MN, Chisago County, MN, Clay County, MN, Clearwater County, MN, Crow Wing County, MN, Dakota County, MN, Dodge County, MN, Douglas County, MN, Fillmore County, MN, Freeborn County, MN, Goodhue County, MN, Hennepin County, MN, Houston County, MN, Hubbard County, MN, Isanti County, MN, Kanabec County, MN, Kandiyohi County, MN, Le Sueur County, MN, Mahnomen County, MN, McLeod County, MN, Meeker County, MN, Mille Lacs County, MN, Morrison County, MN, Mower County, MN, Nicollet County, MN, Norman County, MN, Olmsted County, MN, Otter Tail County, MN, Pope County, MN, Ramsey County, MN, Renville County, MN, Rice County, MN, Scott County, MN, Sherburne County, MN, Sibley County, MN, Stearns County, MN, Steele County, MN, Todd County, MN, Wabasha County, MN, Wadena County, MN, Waseca County, MN, Washington County, MN, Winona County, MN, Wright County, MN
The radar
The Minneapolis radar (KMPX), 123 km from the middle of the area, began a volume at 20:01 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.
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
- 30%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 50%
- One or more hailstones of 2 inches or more
- 20%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
44 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 3:08 PM CDT | Severe Thunderstorm Warning | MPX | Le Sueur, Rice, Steele, Waseca | 67 min |
| May 31, 3:11 PM CDT | Severe Thunderstorm Warning | FGF | Clearwater, Mahnomen | 34 min |
| May 31, 3:13 PM CDT | Severe Thunderstorm Warning | DLH | Cass, Crow Wing | 47 min |
| May 31, 3:39 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Clearwater, Hubbard | 54 min |
| May 31, 3:44 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Clearwater, Mahnomen | 61 min |
| May 31, 4:05 PM CDT | Severe Thunderstorm Warning | FGF | Clearwater, Mahnomen | 30 min |
| May 31, 4:15 PM CDT | Severe Thunderstorm Warning | MPX | Faribault, Freeborn, Steele, Waseca | 48 min |
| May 31, 4:15 PM CDT | Severe Thunderstorm Warning | MPX | Benton, Sherburne | 60 min |
| May 31, 4:21 PM CDT | Severe Thunderstorm Warning | DLH | Crow Wing | 24 min |
| May 31, 4:23 PM CDT | Severe Thunderstorm Warning | MPX | Morrison | 67 min |
| May 31, 4:26 PM CDT | Severe Thunderstorm Warning | ARX | Dodge, Mower | 34 min |
| May 31, 4:43 PM CDT | Severe Thunderstorm Warning | MPX | Kanabec, Mille Lacs, Morrison | 62 min |
| May 31, 4:44 PM CDT | Severe Thunderstorm Warning | DLH | Crow Wing | 19 min |
| May 31, 4:48 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Clearwater | 42 min |
| May 31, 4:50 PM CDT | Severe Thunderstorm Warning | ARX | Fillmore, Mower | 45 min |
| May 31, 5:01 PM CDT | Severe Thunderstorm Warning | MPX | Sherburne, Wright | 59 min |
| May 31, 5:13 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Otter Tail | 40 min |
| May 31, 5:16 PM CDT | Tornado Warning | MPX | Sherburne, Wright | 44 min |
| May 31, 5:18 PM CDT | Severe Thunderstorm Warning | ARX | Howard, Winneshiek | 42 min |
| May 31, 5:25 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Hennepin, Ramsey | 65 min |
| May 31, 5:28 PM CDT | Severe Thunderstorm Warning | MPX | Benton, Mille Lacs, Morrison | 62 min |
| May 31, 5:35 PM CDT | Severe Thunderstorm Warning | DLH | Cass | 40 min |
| May 31, 5:38 PM CDT | Tornado Warning | MPX | Hennepin, Wright | 40 min |
| May 31, 5:54 PM CDT | Tornado Warning | DLH | Cass, Crow Wing | 40 min |
| May 31, 5:55 PM CDT | Severe Thunderstorm Warning | ARX | Floyd | 26 min |
| May 31, 5:56 PM CDT | Severe Thunderstorm Warning | FGF | Mahnomen | 32 min |
| May 31, 6:00 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Winneshiek | 32 min |
| May 31, 6:17 PM CDT | Severe Thunderstorm Warning | MPX | Chisago, Isanti | 58 min |
| May 31, 6:26 PM CDT | Severe Thunderstorm Warning | MPX | Dakota, Hennepin, Ramsey, Scott | 50 min |
| May 31, 6:30 PM CDT | Severe Thunderstorm Warning | ARX | Clayton | 45 min |
| May 31, 6:31 PM CDT | Severe Thunderstorm Warning | DLH | Crow Wing | 29 min |
| May 31, 6:44 PM CDT | Severe Thunderstorm Warning | MPX | Kanabec, Mille Lacs, Morrison | 46 min |
| May 31, 6:45 PM CDT | Severe Thunderstorm Warning | MPX | Anoka, Chisago, Washington | 45 min |
| May 31, 6:55 PM CDT | Tornado Warning | MPX | Anoka, Chisago, Washington | 50 min |
| May 31, 7:00 PM CDT | Severe Thunderstorm Warning | MPX | Dakota | 44 min |
| May 31, 7:17 PM CDT | Severe Thunderstorm Warning | ARX | Clayton | 28 min |
| May 31, 7:18 PM CDT | Tornado Warning | MPX | Anoka, Ramsey, Washington | 30 min |
| May 31, 7:23 PM CDT | Tornado Warning | MPX | Washington | 32 min |
| May 31, 7:29 PM CDT | Severe Thunderstorm Warning | MPX | Sibley | 19 min |
| May 31, 7:32 PM CDT | Severe Thunderstorm Warning | MPX | Goodhue | 43 min |
| May 31, 7:40 PM CDT | Severe Thunderstorm Warning | MPX | Ramsey, Washington | 47 min |
| May 31, 8:04 PM CDT | Severe Thunderstorm Warning | ARX | Olmsted, Wabasha | 41 min |
| May 31, 8:21 PM CDT | Severe Thunderstorm Warning | MPX | Goodhue | 41 min |
| May 31, 8:44 PM CDT | Severe Thunderstorm Warning | ARX | Olmsted | 46 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, 7.9 hours before the alert went out and 122 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
- 16 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 722 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- 7 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 31, 6:23 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Chickasaw, Clayton, Fayette, Floyd and 4 more | 67 min |
| May 31, 2:07 PM CDT | Mesoscale Discussion | SPC | Anoka, Becker, Beltrami, Benton, Blue Earth, Carver and 39 more | 53 min |
Nearby
Severe Thunderstorm Watches in Minnesota, 2008Severe Thunderstorm Watches in Iowa, 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.