Alert archive / Minnesota / Mesoscale Discussions in 2004

Mesoscale Discussion 1607

July 10, 20048 counties in Minnesota; 8 counties in North Dakota; Marshall County, South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jul 10, 2004, 8:51 PM CDT for 8 counties in Minnesota; 8 counties in North Dakota; Marshall County, South Dakota. It was in force for 54 min.

The area

The outline as issued.

The facts

Issued: Jul 10, 2004, 8:51 PM CDT (01:51 UTC)
Expired: Jul 10, 2004, 9:45 PM CDT
In force: 54 min
Issued by: the Storm Prediction Center

Counties Becker County, MN, Clay County, MN, Grant County, MN, Mahnomen County, MN, Norman County, MN, Otter Tail County, MN, Traverse County, MN, Wilkin County, MN, Barnes County, ND, Cass County, ND, Dickey County, ND, LaMoure County, ND, Ransom County, ND, Richland County, ND, Sargent County, ND, Traill County, ND, Marshall County, SD

The radar

The Fargo/Grand Forks radar (KMVX), 107 km from the middle of the area, began a volume at 01:52 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.

Severe Thunderstorm Watch 601Jul 10, 9:10 PM CDT

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 1.9 hours before the alert went out and 207 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, 9:10 PM CDT	Severe Thunderstorm Watch	SPC	Becker, Beltrami, Clay, Clearwater, Hubbard, Mahnomen and 6 more	6 hr
Jul 10, 11:19 PM CDT	Mesoscale Discussion	SPC	Becker, Big Stone, Chippewa, Clay, Clearwater, Douglas and 14 more	116 min
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 North Dakota, 2004 Mesoscale Discussions in South 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.