Alert archive / Minnesota / Mesoscale Discussions in 2010
Mesoscale Discussion 1663
The Storm Prediction Center issued this mesoscale discussion at Aug 12, 2010, 10:53 PM CDT for 24 counties in Minnesota; Ransom County, Richland County, Sargent County, North Dakota; 8 counties in South Dakota. It was in force for 67 min.
The area
The outline as issued.
The facts
- Issued
- Aug 12, 2010, 10:53 PM CDT (03:53 UTC)
- Expired
- Aug 13, 2010, 12:00 AM CDT
- In force
- 67 min
- Issued by
- the Storm Prediction Center
All 35 counties
Benton County, MN, Big Stone County, MN, Chippewa County, MN, Douglas County, MN, Grant County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Lincoln County, MN, Lyon County, MN, McLeod County, MN, Meeker County, MN, Morrison County, MN, Otter Tail County, MN, Pope County, MN, Redwood County, MN, Renville County, MN, Stearns County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Traverse County, MN, Wilkin County, MN, Wright County, MN, Yellow Medicine County, MN, Ransom County, ND, Richland County, ND, Sargent County, ND, Clark County, SD, Codington County, SD, Day County, SD, Deuel County, SD, Grant County, SD, Hamlin County, SD, Marshall County, SD, Roberts County, SD
The radar
The Aberdeen radar (KABR), 183 km from the middle of the area, began a volume at 03:52 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 3.9 hours before the alert went out and 196 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
- 5023 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 1129 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 78 m²/s²
- 0-3 km storm-relative helicity
- 150 m²/s²
- Significant tornado parameter
- 2.4
- Supercell composite
- 14.8
The text
As transmitted, in the capitals the NWS used until 2016.
518 ACUS11 KWNS 130353 SWOMCD SPC MCD 130353 MNZ000-SDZ000-NDZ000-130500- MESOSCALE DISCUSSION 1663 NWS STORM PREDICTION CENTER NORMAN OK 1053 PM CDT THU AUG 12 2010 AREAS AFFECTED...SERN ND - NERN SD - CNTRL MN CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE VALID 130353Z - 130500Z SUSTAINED LOW LEVEL WARM ADVECTION ATOP CONVECTIVE COLD BUBBLE APPEARS PRIMARILY RESPONSIBLE FOR ONGOING AND MORE RECENT THUNDERSTORM DEVELOPMENT FROM CNTRL MN INTO SERN ND. THIS ELEVATED ACTIVITY IS LIKELY BEING FED FROM THE SW WHERE UPSTREAM AIRMASS HAS YET TO BE OVERTURNED AND REMAINS QUITE MOIST AND UNSTABLE...EVEN AS THE BOUNDARY LAYER DECOUPLES. LATEST RADAR GUIDANCE SUGGEST STRONGEST CORES ARE LIKELY PRODUCING NICKLE-QUARTER SIZED HAIL...BUT ACTIVITY IS GRADUALLY EXPANDING IN AREAL COVERAGE. IF THESE TRENDS CONTINUE A NEW SEVERE THUNDERSTORM WATCH MAY BE NEEDED. ..DARROW.. 08/13/2010 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...DLH...MPX...FGF...FSD...ABR... LAT...LON 46569781 46389408 44879379 44139500 44669789 46569781
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 8:29 PM CDT | Mesoscale Discussion | SPC | Anoka, Benton, Carver, Chisago, Dakota, Hennepin and 12 more | 61 min |
| Aug 13, 12:48 AM CDT | Mesoscale Discussion | SPC | Blue Earth, Carver, Dakota, Dodge, Faribault, Fillmore and 17 more | 57 min |
| Aug 13, 1:19 AM CDT | Severe Thunderstorm Watch | SPC | Anoka, Blue Earth, Carver, Chisago, Dakota, Dodge and 27 more | 4 hr |
| Aug 13, 2:58 AM CDT | Mesoscale Discussion | SPC | Lac qui Parle, Lincoln, Lyon, Murray, Nobles, Pipestone and 2 more | 62 min |
| Aug 13, 4:20 AM CDT | Mesoscale Discussion | SPC | Houston | 115 min |
| Aug 13, 5:27 AM CDT | Severe Thunderstorm Watch | SPC | Anoka, Benton, Blue Earth, Brown, Carver, Chisago and 31 more | 8 hr |
| Aug 13, 9:16 AM CDT | Mesoscale Discussion | SPC | Blue Earth, Brown, Carver, Cottonwood, Dakota, Dodge and 25 more | 119 min |
| Aug 13, 10:36 AM CDT | Mesoscale Discussion | SPC | Blue Earth, Brown, Carver, Cottonwood, Dakota, Dodge and 23 more | 84 min |
| Aug 13, 12:04 PM CDT | Mesoscale Discussion | SPC | Blue Earth, Brown, Carver, Cottonwood, Dakota, Dodge and 30 more | 56 min |
| Aug 13, 2:39 PM CDT | Severe Thunderstorm Watch | SPC | Aitkin, Anoka, Benton, Blue Earth, Brown, Carlton and 38 more | 7 hr |
| Aug 13, 4:24 PM CDT | Tornado Watch | SPC | Dodge, Fillmore, Houston, Mower, Olmsted, Wabasha and 1 more | 6 hr |
| Aug 12, 10:17 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Burleigh, Dickey, Emmons, Grant, Hettinger and 8 more | 7 hr |
| Aug 13, 1:08 AM CDT | Mesoscale Discussion | SPC | Barnes, Benson, Cass, Eddy, Foster, Griggs and 14 more | 67 min |
| Aug 13, 1:33 AM CDT | Severe Thunderstorm Watch | SPC | Barnes, Cass, Eddy, Grand Forks, Griggs, Nelson and 5 more | 4 hr |
| Aug 12, 7:24 PM CDT | Mesoscale Discussion | SPC | Butte, Lawrence, Meade | 2 hr |
Nearby
Mesoscale Discussions in Minnesota, 2010Mesoscale Discussions in South Dakota, 2010Mesoscale Discussions in North Dakota, 2010Every mesoscale discussion in 2010
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.