Alert archive / Minnesota / Tornado Watches in 2008
Tornado Watch 703
The Storm Prediction Center issued this tornado watch at Jul 19, 2008, 2:28 PM CDT for 5 states. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 19, 2008, 2:28 PM CDT (19:28 UTC)
- Expired
- Jul 19, 2008, 10:00 PM CDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2.5 in
- Strongest gust expected
- 70 kt
All 82 counties
Buena Vista County, IA, Cherokee County, IA, Clay County, IA, Dickinson County, IA, Emmet County, IA, Harrison County, IA, Ida County, IA, Kossuth County, IA, Lyon County, IA, Monona County, IA, O'Brien County, IA, Osceola County, IA, Palo Alto County, IA, Plymouth County, IA, Shelby County, IA, Sioux County, IA, Winnebago County, IA, Woodbury County, IA, Anoka County, MN, Blue Earth County, MN, Brown County, MN, Carver County, MN, Chisago County, MN, Cottonwood County, MN, Dakota County, MN, Dodge County, MN, Faribault County, MN, Freeborn County, MN, Goodhue County, MN, Hennepin County, MN, Isanti County, MN, Jackson County, MN, Le Sueur County, MN, Martin County, MN, McLeod County, MN, Mower County, MN, Nicollet County, MN, Nobles County, MN, Olmsted County, MN, Ramsey County, MN, Rice County, MN, Rock County, MN, Scott County, MN, Sherburne County, MN, Sibley County, MN, Steele County, MN, Wabasha County, MN, Waseca County, MN, Washington County, MN, Watonwan County, MN, Wright County, MN, Antelope County, NE, Boone County, NE, Burt County, NE, Cedar County, NE, Cuming County, NE, Dakota County, NE, Dixon County, NE, Knox County, NE, Madison County, NE, Pierce County, NE, Stanton County, NE, Thurston County, NE, Wayne County, NE, Bon Homme County, SD, Clay County, SD, Hutchinson County, SD, Lincoln County, SD, McCook County, SD, Minnehaha County, SD, Turner County, SD, Union County, SD, Yankton County, SD, Barron County, WI, Chippewa County, WI, Dunn County, WI, Eau Claire County, WI, Pepin County, WI, Pierce County, WI, Polk County, WI, Rusk County, WI, Saint Croix County, WI
The radar
The Sioux Falls radar (KFSD), 82 km from the middle of the area, began a volume at 19:31 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
- 40%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 40%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
27 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 2:31 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 44 min |
| Jul 19, 2:35 PM CDT | Tornado Warning | MPX | Anoka, Isanti, Sherburne | 40 min |
| Jul 19, 2:42 PM CDT | Severe Thunderstorm Warning | FSD | Hutchinson, Lincoln, McCook, Minnehaha, Turner | 33 min |
| Jul 19, 2:59 PM CDT | Tornado Warning | MPX | Chisago, Isanti | 20 min |
| Jul 19, 3:07 PM CDT | Tornado Warning | MPX | Anoka, Chisago, Isanti, Washington | 38 min |
| Jul 19, 3:15 PM CDT | Tornado Warning | FSD | Lyon, Sioux | 30 min |
| Jul 19, 3:25 PM CDT | Severe Thunderstorm Warning | FSD | Jackson | 35 min |
| Jul 19, 3:40 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 50 min |
| Jul 19, 3:52 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 38 min |
| Jul 19, 4:05 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Lincoln, Turner, Union, Yankton | 40 min |
| Jul 19, 4:11 PM CDT | Flash Flood Warning | MPX | Martin | 2 hr |
| Jul 19, 4:12 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, O'Brien, Osceola, Sioux | 48 min |
| Jul 19, 4:25 PM CDT | Tornado Warning | MPX | Saint Croix | 35 min |
| Jul 19, 4:37 PM CDT | Severe Thunderstorm Warning | MPX | Dunn | 42 min |
| Jul 19, 4:42 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson, O'Brien, Osceola | 33 min |
| Jul 19, 4:47 PM CDT | Severe Thunderstorm Warning | FSD | Sioux | 43 min |
| Jul 19, 5:05 PM CDT | Severe Thunderstorm Warning | MPX | Dunn, Pierce, Saint Croix | 55 min |
| Jul 19, 5:06 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa | 54 min |
| Jul 19, 5:28 PM CDT | Severe Thunderstorm Warning | MPX | Pierce | 47 min |
| Jul 19, 5:31 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Kossuth, Palo Alto, Pocahontas | 44 min |
| Jul 19, 5:57 PM CDT | Severe Thunderstorm Warning | MPX | Dunn, Eau Claire, Pepin | 23 min |
| Jul 19, 6:03 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Humboldt, Kossuth, Wright | 42 min |
| Jul 19, 6:03 PM CDT | Flash Flood Warning | MPX | Freeborn | 2 hr |
| Jul 19, 7:00 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 45 min |
| Jul 19, 7:36 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 39 min |
| Jul 19, 8:35 PM CDT | Severe Thunderstorm Warning | OAX | Burt, Thurston | 40 min |
| Jul 19, 8:55 PM CDT | Tornado Warning | OAX | Harrison, Shelby | 35 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, 7.5 hours before the alert went out and 214 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
- 1477 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 95 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 |
|---|---|---|---|---|
| Jul 19, 1:09 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Cherokee, Clay, Dickinson, Emmet and 17 more | 2 hr |
| Jul 19, 5:22 PM CDT | Tornado Watch | SPC | Allamakee, Black Hawk, Boone, Bremer, Butler, Calhoun and 25 more | 5 hr |
| Jul 19, 6:56 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 45 more | 2 hr |
| Jul 18, 8:45 PM CDT | Mesoscale Discussion | SPC | Keya Paha | 2 hr |
| Jul 18, 9:58 PM CDT | Severe Thunderstorm Watch | SPC | Boyd, Brown, Cherry, Holt, Keya Paha, Rock | 6 hr |
| Jul 18, 11:47 PM CDT | Mesoscale Discussion | SPC | Boyd, Brown, Cherry, Holt, Keya Paha, Rock | 88 min |
Nearby
Tornado Watches in Minnesota, 2008Tornado Watches in Iowa, 2008Tornado Watches in Nebraska, 2008Every tornado 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.