Alert archive / South Dakota / Mesoscale Discussions in 2004
Mesoscale Discussion 2364
The Storm Prediction Center issued this mesoscale discussion at Oct 29, 2004, 10:08 AM CDT for 7 counties in Minnesota; 19 counties in South Dakota. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Oct 29, 2004, 10:08 AM CDT (15:08 UTC)
- Expired
- Oct 29, 2004, 12:45 PM CDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
All 26 counties
Big Stone County, MN, Grant County, MN, Lac qui Parle County, MN, Pope County, MN, Stevens County, MN, Swift County, MN, Traverse County, MN, Beadle County, SD, Brown County, SD, Buffalo County, SD, Clark County, SD, Codington County, SD, Day County, SD, Deuel County, SD, Edmunds County, SD, Faulk County, SD, Grant County, SD, Hamlin County, SD, Hand County, SD, Hughes County, SD, Hyde County, SD, Marshall County, SD, Potter County, SD, Roberts County, SD, Spink County, SD, Sully County, SD
The radar
The Aberdeen radar (KABR), 74 km from the middle of the area, began a volume at 15:08 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.
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 3.1 hours before the alert went out and 55 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
- 85 J/kg
- Mixed-layer CIN
- -330 J/kg
- Mixed-layer LCL
- 731 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 59 m²/s²
- 0-3 km storm-relative helicity
- 112 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 29, 2:12 PM CDT | Mesoscale Discussion | SPC | Faribault, Jackson, Martin | 3 hr |
| Oct 29, 2:57 PM CDT | Mesoscale Discussion | SPC | Aitkin, Becker, Carlton, Cass, Clay, Crow Wing and 10 more | 3 hr |
| Oct 29, 3:19 PM CDT | Mesoscale Discussion | SPC | Anoka, Benton, Blue Earth, Carver, Chisago, Dakota and 23 more | 116 min |
| Oct 29, 3:35 PM CDT | Tornado Watch | SPC | Anoka, Benton, Blue Earth, Brown, Carver, Chisago and 34 more | 5 hr |
| Oct 29, 5:46 PM CDT | Mesoscale Discussion | SPC | Houston, Winona | 89 min |
| Oct 29, 6:10 PM CDT | Mesoscale Discussion | SPC | Anoka, Benton, Chisago, Dakota, Dodge, Fillmore and 18 more | 95 min |
| Oct 29, 6:30 PM CDT | Tornado Watch | SPC | Fillmore, Houston, Winona | 6 hr |
Nearby
Mesoscale Discussions in South Dakota, 2004Mesoscale Discussions in Minnesota, 2004Every mesoscale discussion 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.