Alert archive / North Dakota / Mesoscale Discussions in 2003

Mesoscale Discussion 1579

July 2, 20036 counties in Minnesota; 11 counties in North Dakota

The Storm Prediction Center issued this mesoscale discussion at Jul 2, 2003, 11:00 AM CDT for 6 counties in Minnesota; 11 counties in North Dakota. It was in force for 60 min.

The area

The outline as issued.

The facts

Issued: Jul 2, 2003, 11:00 AM CDT (16:00 UTC)
Expired: Jul 2, 2003, 12:00 PM CDT
In force: 60 min
Issued by: the Storm Prediction Center

Counties Kittson County, MN, Marshall County, MN, Norman County, MN, Pennington County, MN, Polk County, MN, Red Lake County, MN, Barnes County, ND, Cass County, ND, Grand Forks County, ND, Griggs County, ND, LaMoure County, ND, Nelson County, ND, Pembina County, ND, Steele County, ND, Stutsman County, ND, Traill County, ND, Walsh County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 25 km from the middle of the area, began a volume at 16:03 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 619Jul 2, 11:20 AM CDT

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 4.0 hours before the alert went out and 258 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: 2034 J/kg
Mixed-layer CIN: -295 J/kg
Mixed-layer LCL: 1447 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 19 m²/s²
0-3 km storm-relative helicity: 67 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 2, 11:20 AM CDT	Severe Thunderstorm Watch	SPC	Becker, Clay, Clearwater, Kittson, Mahnomen, Marshall and 7 more	6 hr
Jul 2, 1:27 PM CDT	Mesoscale Discussion	SPC	Aitkin, Becker, Beltrami, Cass, Clay, Clearwater and 18 more	2 hr
Jul 2, 2:40 PM CDT	Severe Thunderstorm Watch	SPC	Aitkin, Carlton, Cass, Crow Wing, Hubbard, Itasca and 4 more	5 hr
Jul 2, 3:30 PM CDT	Mesoscale Discussion	SPC	Benton, Big Stone, Chippewa, Douglas, Grant, Kandiyohi and 13 more	2 hr
Jul 2, 5:14 PM CDT	Mesoscale Discussion	SPC	Aitkin, Anoka, Benton, Carlton, Cass, Chisago and 14 more	61 min
Jul 2, 12:41 AM CDT	Mesoscale Discussion	SPC	Adams, Billings, Bowman, Dunn, Golden Valley, Hettinger and 6 more	2 hr
Jul 2, 7:00 AM CDT	Severe Thunderstorm Watch	SPC	Benson, Bottineau, Burleigh, Cavalier, Eddy, Emmons and 20 more	6 hr
Jul 2, 9:20 AM CDT	Mesoscale Discussion	SPC	Barnes, Benson, Burleigh, Cavalier, Eddy, Emmons and 17 more	115 min

Nearby

Mesoscale Discussions in North Dakota, 2003 Mesoscale Discussions in Minnesota, 2003 Every mesoscale discussion in 2003

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.