Alert archive / North Dakota / Mesoscale Discussions in 2007
Mesoscale Discussion 1903
The Storm Prediction Center issued this mesoscale discussion at Aug 27, 2007, 7:10 AM CDT for Wilkin County, Minnesota; Ransom County, Richland County, Sargent County, North Dakota; Marshall County, Roberts County, South Dakota. It was in force for 95 min.
The area
The outline as issued.
The facts
- Issued
- Aug 27, 2007, 7:10 AM CDT (12:10 UTC)
- Expired
- Aug 27, 2007, 8:45 AM CDT
- In force
- 95 min
- Issued by
- the Storm Prediction Center
Counties Wilkin County, MN, Ransom County, ND, Richland County, ND, Sargent County, ND, Marshall County, SD, Roberts County, SD
The radar
The Aberdeen radar (KABR), 103 km from the middle of the area, began a volume at 12:13 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, 0.2 hours before the alert went out and 149 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
- 3393 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 503 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 267 m²/s²
- Significant tornado parameter
- 3.1
- Supercell composite
- 12.0
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 |
|---|---|---|---|---|
| Aug 26, 8:04 PM CDT | Mesoscale Discussion | SPC | Kittson, Marshall, Pennington, Polk, Red Lake, Roseau | 116 min |
| Aug 26, 10:25 PM CDT | Mesoscale Discussion | SPC | Becker, Beltrami, Clay, Clearwater, Koochiching, Mahnomen and 4 more | 65 min |
| Aug 27, 1:43 AM CDT | Mesoscale Discussion | SPC | Anoka, Chisago, Dakota, Dodge, Fillmore, Goodhue and 12 more | 92 min |
| Aug 27, 10:14 AM CDT | Mesoscale Discussion | SPC | Becker, Beltrami, Clay, Clearwater, Hubbard, Itasca and 8 more | 91 min |
| Aug 27, 12:55 PM CDT | Mesoscale Discussion | SPC | Becker, Clay, Mahnomen, Norman, Otter Tail, Wilkin | 65 min |
| Aug 27, 2:29 PM CDT | Severe Thunderstorm Watch | SPC | Aitkin, Becker, Beltrami, Cass, Clay, Clearwater and 15 more | 8 hr |
| Aug 27, 5:34 PM CDT | Mesoscale Discussion | SPC | Aitkin, Becker, Carlton, Cass, Clay, Clearwater and 8 more | 116 min |
| Aug 27, 6:19 PM CDT | Severe Thunderstorm Watch | SPC | Carlton, Cook, Lake, Pine, Saint Louis | 7 hr |
| Aug 26, 11:07 PM CDT | Mesoscale Discussion | SPC | Adams, Burleigh, Emmons, Grant, Hettinger, Kidder and 2 more | 113 min |
| Aug 27, 3:02 AM CDT | Mesoscale Discussion | SPC | Dickey, Emmons, LaMoure, Logan, McIntosh, Ransom and 2 more | 88 min |
| Aug 27, 3:14 AM CDT | Severe Thunderstorm Watch | SPC | Barnes, Burleigh, Cass, Dickey, Emmons, Griggs and 10 more | 7 hr |
Nearby
Mesoscale Discussions in North Dakota, 2007Mesoscale Discussions in South Dakota, 2007Mesoscale Discussions in Minnesota, 2007Every mesoscale discussion in 2007
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.