Alert archive / Minnesota / Mesoscale Discussions in 2004

Mesoscale Discussion 1611

July 10, 200420 counties in Minnesota; Richland County, North Dakota; 17 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jul 10, 2004, 11:19 PM CDT for 20 counties in Minnesota; Richland County, North Dakota; 17 counties in South Dakota. It was in force for 116 min.

The area

The outline as issued.

The facts

Issued: Jul 10, 2004, 11:19 PM CDT (04:19 UTC)
Expired: Jul 11, 2004, 1:15 AM CDT
In force: 116 min
Issued by: the Storm Prediction Center

All 38 counties

Becker County, MN, Big Stone County, MN, Chippewa County, MN, Clay County, MN, Clearwater County, MN, Douglas County, MN, Grant County, MN, Hubbard County, MN, Lac qui Parle County, MN, Lincoln County, MN, Mahnomen County, MN, Otter Tail County, MN, Pope County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Traverse County, MN, Wadena County, MN, Wilkin County, MN, Yellow Medicine County, MN, Richland County, ND, Aurora County, SD, Brookings County, SD, Clark County, SD, Codington County, SD, Davison County, SD, Day County, SD, Deuel County, SD, Grant County, SD, Hamlin County, SD, Hanson County, SD, Kingsbury County, SD, Lake County, SD, Marshall County, SD, McCook County, SD, Miner County, SD, Roberts County, SD, Sanborn County, SD

The radar

The Aberdeen radar (KABR), 150 km from the middle of the area, began a volume at 04:20 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 00:00Z, 4.3 hours before the alert went out and 171 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 3042 J/kg
Mixed-layer CIN: -50 J/kg
Mixed-layer LCL: 1287 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -15 m²/s²
0-3 km storm-relative helicity: 31 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 10, 8:51 PM CDT	Mesoscale Discussion	SPC	Becker, Clay, Grant, Mahnomen, Norman, Otter Tail and 2 more	54 min
Jul 10, 9:10 PM CDT	Severe Thunderstorm Watch	SPC	Becker, Beltrami, Clay, Clearwater, Hubbard, Mahnomen and 6 more	6 hr
Jul 10, 7:56 PM CDT	Mesoscale Discussion	SPC	Billings, Bowman, Golden Valley, McKenzie, Slope	94 min
Jul 11, 12:40 AM CDT	Mesoscale Discussion	SPC	Billings, Bowman, Golden Valley, Slope, Stark	35 min
Jul 11, 12:48 PM CDT	Mesoscale Discussion	SPC	Adams, Billings, Bottineau, Bowman, Burke, Divide and 17 more	117 min
Jul 11, 6:34 PM CDT	Mesoscale Discussion	SPC	Adams, Billings, Bottineau, Bowman, Burke, Burleigh and 19 more	86 min
Jul 10, 9:02 PM CDT	Mesoscale Discussion	SPC	Aurora, Beadle, Brule, Buffalo, Clark, Davison and 12 more	118 min
Jul 11, 1:43 PM CDT	Mesoscale Discussion	SPC	Bennett, Butte, Custer, Fall River, Haakon, Jackson and 5 more	2 hr

Nearby

Mesoscale Discussions in Minnesota, 2004 Mesoscale Discussions in South Dakota, 2004 Mesoscale Discussions in North Dakota, 2004 Every 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.