Alert archive / Minnesota / Severe Thunderstorm Watches in 2004
Severe Thunderstorm Watch 685
The Storm Prediction Center issued this severe thunderstorm watch at Aug 2, 2004, 3:00 AM CDT for 20 counties in Minnesota; Barnes County, Cass County, Richland County, North Dakota. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Aug 2, 2004, 3:00 AM CDT (08:00 UTC)
- Expired
- Aug 2, 2004, 8:00 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 23 counties
Anoka County, MN, Becker County, MN, Benton County, MN, Clay County, MN, Douglas County, MN, Grant County, MN, Isanti County, MN, Kandiyohi County, MN, Meeker County, MN, Morrison County, MN, Otter Tail County, MN, Pope County, MN, Sherburne County, MN, Stearns County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Wadena County, MN, Wilkin County, MN, Wright County, MN, Barnes County, ND, Cass County, ND, Richland County, ND
The radar
The Fargo/Grand Forks radar (KMVX), 194 km from the middle of the area, began a volume at 08:01 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.
Warnings issued inside it
11 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 3:04 AM CDT | Tornado Warning | FGF | Otter Tail | 41 min |
| Aug 2, 3:19 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass, Steele | 41 min |
| Aug 2, 3:30 AM CDT | Severe Thunderstorm Warning | FGF | Wilkin | 30 min |
| Aug 2, 3:46 AM CDT | Tornado Warning | FGF | Otter Tail | 44 min |
| Aug 2, 3:56 AM CDT | Severe Thunderstorm Warning | MPX | Douglas, Todd | 79 min |
| Aug 2, 4:30 AM CDT | Severe Thunderstorm Warning | FGF | Otter Tail | 30 min |
| Aug 2, 4:50 AM CDT | Severe Thunderstorm Warning | FGF | Barnes, Griggs | 40 min |
| Aug 2, 4:55 AM CDT | Severe Thunderstorm Warning | MPX | Benton, Douglas, Mille Lacs, Morrison, Stearns, Todd | 80 min |
| Aug 2, 6:14 AM CDT | Severe Thunderstorm Warning | FGF | Otter Tail | 46 min |
| Aug 2, 6:36 AM CDT | Severe Thunderstorm Warning | FGF | Grant | 24 min |
| Aug 2, 6:36 AM CDT | Severe Thunderstorm Warning | MPX | Douglas | 54 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, 8.0 hours before the alert went out and 220 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
- 2637 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 947 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 1.8
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 7:22 PM CDT | Mesoscale Discussion | SPC | Big Stone, Lac qui Parle, Lincoln, Swift | 53 min |
| Aug 2, 12:20 AM CDT | Severe Thunderstorm Watch | SPC | Murray, Nobles, Pipestone, Rock | 4 hr |
| Aug 2, 12:53 AM CDT | Mesoscale Discussion | SPC | Becker, Beltrami, Cass, Clay, Clearwater, Hubbard and 12 more | 97 min |
| Aug 2, 3:02 AM CDT | Mesoscale Discussion | SPC | Murray, Nobles, Rock | 58 min |
| Aug 2, 5:17 AM CDT | Mesoscale Discussion | SPC | Anoka, Becker, Benton, Clay, Douglas, Grant and 14 more | 88 min |
| Aug 2, 6:41 AM CDT | Mesoscale Discussion | SPC | Anoka, Becker, Benton, Clay, Douglas, Grant and 14 more | 64 min |
| Aug 2, 3:12 PM CDT | Mesoscale Discussion | SPC | Blue Earth, Brown, Cottonwood, Dodge, Faribault, Freeborn and 18 more | 2 hr |
| Aug 2, 3:50 PM CDT | Severe Thunderstorm Watch | SPC | Blue Earth, Brown, Cottonwood, Faribault, Freeborn, Jackson and 14 more | 5 hr |
| Aug 1, 8:10 PM CDT | Mesoscale Discussion | SPC | Benson, Bottineau, Burleigh, Eddy, Foster, Kidder and 13 more | 65 min |
Nearby
Severe Thunderstorm Watches in Minnesota, 2004Severe Thunderstorm Watches in North Dakota, 2004Every severe thunderstorm watch in 2004
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.