Alert archive / Minnesota / Severe Thunderstorm Watches in 2008
Severe Thunderstorm Watch 682
The Storm Prediction Center issued this severe thunderstorm watch at Jul 10, 2008, 11:41 PM CDT for 36 counties in Minnesota; 8 counties in Wisconsin. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 10, 2008, 11:41 PM CDT (04:41 UTC)
- Expired
- Jul 11, 2008, 5:00 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 44 counties
Anoka County, MN, Benton County, MN, Blue Earth County, MN, Brown County, MN, Carver County, MN, Chippewa County, MN, Chisago County, MN, Dakota County, MN, Goodhue County, MN, Hennepin County, MN, Isanti County, MN, Kanabec County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Le Sueur County, MN, McLeod County, MN, Meeker County, MN, Mille Lacs County, MN, Morrison County, MN, Nicollet County, MN, Pope County, MN, Ramsey County, MN, Redwood County, MN, Renville County, MN, Rice County, MN, Scott County, MN, Sherburne County, MN, Sibley County, MN, Stearns County, MN, Steele County, MN, Swift County, MN, Todd County, MN, Waseca County, MN, Washington County, MN, Wright County, MN, Yellow Medicine County, MN, Barron County, WI, Chippewa County, WI, Dunn County, WI, Eau Claire County, WI, Pepin County, WI, Pierce County, WI, Polk County, WI, Saint Croix County, WI
The radar
The Minneapolis radar (KMPX), 53 km from the middle of the area, began a volume at 04:44 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
- 30%
- One or more hailstones of 2 inches or more
- 20%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
5 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 12:16 AM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Lac qui Parle, Swift | 59 min |
| Jul 11, 12:52 AM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, Meeker, Stearns | 53 min |
| Jul 11, 1:06 AM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Kandiyohi, Meeker, Renville, Swift, Yellow Medicine | 54 min |
| Jul 11, 1:10 AM CDT | Severe Thunderstorm Warning | MPX | Kanabec, Mille Lacs, Morrison | 65 min |
| Jul 11, 4:18 AM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Rusk | 57 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 00:00Z, 4.7 hours before the alert went out and 51 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
- 671 J/kg
- Mixed-layer CIN
- -276 J/kg
- Mixed-layer LCL
- 1502 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 191 m²/s²
- 0-3 km storm-relative helicity
- 297 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.4
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 7:36 PM CDT | Tornado Watch | SPC | Becker, Big Stone, Clay, Grant, Mahnomen, Norman and 3 more | 6 hr |
| Jul 10, 9:59 PM CDT | Mesoscale Discussion | SPC | Becker, Big Stone, Clay, Grant, Mahnomen, Norman and 3 more | 91 min |
| Jul 10, 11:19 PM CDT | Severe Thunderstorm Watch | SPC | Beltrami, Clearwater, Kittson, Lake of the Woods, Marshall, Pennington and 3 more | 8 hr |
| Jul 11, 2:15 AM CDT | Mesoscale Discussion | SPC | Anoka, Benton, Blue Earth, Brown, Carver, Chippewa and 32 more | 60 min |
| Jul 11, 4:11 AM CDT | Mesoscale Discussion | SPC | Kittson, Lake of the Woods, Roseau | 94 min |
| Jul 11, 6:36 AM CDT | Mesoscale Discussion | SPC | Beltrami, Clearwater, Kittson, Lake of the Woods, Marshall, Pennington and 3 more | 24 min |
| Jul 11, 7:42 AM CDT | Mesoscale Discussion | SPC | Koochiching, Lake of the Woods | 63 min |
| Jul 11, 12:37 PM CDT | Mesoscale Discussion | SPC | Becker, Beltrami, Clay, Clearwater, Douglas, Grant and 15 more | 83 min |
| Jul 11, 2:26 PM CDT | Tornado Watch | SPC | Aitkin, Becker, Beltrami, Benton, Big Stone, Cass and 39 more | 6 hr |
| Jul 11, 3:13 PM CDT | Mesoscale Discussion | SPC | Brown, Cottonwood, Jackson, Lyon, Martin, Murray and 5 more | 92 min |
| Jul 11, 4:02 PM CDT | Mesoscale Discussion | SPC | Aitkin, Beltrami, Benton, Cass, Chippewa, Clearwater and 18 more | 88 min |
| Jul 11, 5:08 PM CDT | Severe Thunderstorm Watch | SPC | Blue Earth, Brown, Cottonwood, Faribault, Jackson, Le Sueur and 9 more | 7 hr |
| Jul 11, 5:50 PM CDT | Mesoscale Discussion | SPC | Aitkin, Becker, Beltrami, Benton, Big Stone, Cass and 39 more | 85 min |
| Jul 11, 6:13 PM CDT | Severe Thunderstorm Watch | SPC | Anoka, Carlton, Carver, Chisago, Cook, Dakota and 9 more | 7 hr |
| Jul 10, 11:08 PM CDT | Mesoscale Discussion | SPC | Adams, Clark, Columbia, Dane, Dodge, Eau Claire and 17 more | 97 min |
Nearby
Severe Thunderstorm Watches in Minnesota, 2008Severe Thunderstorm Watches in Wisconsin, 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.