Alert archive / Minnesota / Severe Thunderstorm Watches in 2003
Severe Thunderstorm Watch 439
The Storm Prediction Center issued this severe thunderstorm watch at May 29, 2003, 11:30 PM CDT for 26 counties in Minnesota; Burnett County, Douglas County, Washburn County, Wisconsin. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- May 29, 2003, 11:30 PM CDT (04:30 UTC)
- Expired
- May 30, 2003, 5:00 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 29 counties
Aitkin County, MN, Becker County, MN, Beltrami County, MN, Benton County, MN, Carlton County, MN, Cass County, MN, Clearwater County, MN, Crow Wing County, MN, Hubbard County, MN, Itasca County, MN, Kanabec County, MN, Kittson County, MN, Koochiching County, MN, Lake of the Woods County, MN, Mahnomen County, MN, Marshall County, MN, Mille Lacs County, MN, Morrison County, MN, Pennington County, MN, Pine County, MN, Polk County, MN, Red Lake County, MN, Roseau County, MN, Saint Louis County, MN, Todd County, MN, Wadena County, MN, Burnett County, WI, Douglas County, WI, Washburn County, WI
The radar
The Duluth radar (KDLH), 153 km from the middle of the area, began a volume at 04:34 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
1 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 11:49 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Hubbard | 41 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
International Fa, MN (KINL), launched 00:00Z, 4.5 hours before the alert went out and 113 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
- 153 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 2268 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 7:37 PM CDT | Mesoscale Discussion | SPC | Aitkin, Becker, Beltrami, Carlton, Cass, Clay and 18 more | 113 min |
| May 29, 10:46 PM CDT | Mesoscale Discussion | SPC | Aitkin, Becker, Beltrami, Carlton, Cass, Chisago and 19 more | 89 min |
| May 30, 1:23 AM CDT | Mesoscale Discussion | SPC | Aitkin, Becker, Beltrami, Benton, Carlton, Cass and 20 more | 67 min |
| May 30, 4:32 AM CDT | Mesoscale Discussion | SPC | Houston | 58 min |
| May 30, 2:06 PM CDT | Mesoscale Discussion | SPC | Dane, Green, Jefferson, Rock, Walworth | 2 hr |
| May 30, 2:08 PM CDT | Mesoscale Discussion | SPC | Dane, Green, Jefferson, Rock, Walworth | 3 hr |
| May 30, 3:45 PM CDT | Tornado Watch | SPC | Columbia, Dane, Dodge, Green, Iowa, Jefferson and 6 more | 5 hr |
| May 30, 5:54 PM CDT | Mesoscale Discussion | SPC | Adams, Brown, Calumet, Clark, Forest, Juneau and 16 more | 96 min |
| May 30, 6:55 PM CDT | Mesoscale Discussion | SPC | Columbia, Dane, Dodge, Green, Iowa, Jefferson and 6 more | 95 min |
Nearby
Severe Thunderstorm Watches in Minnesota, 2003Severe Thunderstorm Watches in Wisconsin, 2003Every severe thunderstorm watch in 2003
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.