Alert archive / Minnesota / Mesoscale Discussions in 2003

Mesoscale Discussion 1830

July 13, 20038 counties in Minnesota

The Storm Prediction Center issued this mesoscale discussion at Jul 13, 2003, 11:02 PM CDT for 8 counties in Minnesota. It was in force for 58 min.

The area

The outline as issued.

The facts

Issued: Jul 13, 2003, 11:02 PM CDT (04:02 UTC)
Expired: Jul 14, 2003, 12:00 AM CDT
In force: 58 min
Issued by: the Storm Prediction Center

Counties Becker County, MN, Clay County, MN, Hubbard County, MN, Mahnomen County, MN, Norman County, MN, Otter Tail County, MN, Wadena County, MN, Wilkin County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 136 km from the middle of the area, began a volume at 04:02 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

International Fa, MN (KINL), launched 00:00Z, 4.0 hours before the alert went out and 268 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: 9 J/kg
Mixed-layer CIN: -491 J/kg
Mixed-layer LCL: 1667 m above ground
0-6 km bulk shear: 45 kt
0-1 km storm-relative helicity: 226 m²/s²
0-3 km storm-relative helicity: 285 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 13, 9:40 PM CDT	Severe Thunderstorm Watch	SPC	Becker, Beltrami, Clay, Clearwater, Douglas, Grant and 9 more	5 hr
Jul 14, 9:58 AM CDT	Mesoscale Discussion	SPC	Anoka, Blue Earth, Brown, Carver, Chisago, Cottonwood and 32 more	62 min
Jul 14, 1:52 PM CDT	Mesoscale Discussion	SPC	Jackson, Murray, Nobles, Pipestone, Rock	113 min
Jul 14, 2:10 PM CDT	Mesoscale Discussion	SPC	Becker, Beltrami, Clearwater, Hubbard, Itasca, Kittson and 9 more	65 min
Jul 14, 2:35 PM CDT	Tornado Watch	SPC	Beltrami, Cass, Clearwater, Hubbard, Itasca, Kittson and 9 more	5 hr
Jul 14, 3:45 PM CDT	Tornado Watch	SPC	Blue Earth, Cottonwood, Jackson, Martin, Murray, Nobles and 3 more	6 hr
Jul 14, 3:50 PM CDT	Mesoscale Discussion	SPC	Beltrami, Cass, Clearwater, Hubbard, Itasca, Kittson and 9 more	85 min
Jul 14, 3:57 PM CDT	Mesoscale Discussion	SPC	Aitkin, Benton, Big Stone, Crow Wing, Douglas, Grant and 9 more	2 hr
Jul 14, 5:05 PM CDT	Mesoscale Discussion	SPC	Aitkin, Anoka, Benton, Blue Earth, Brown, Carlton and 37 more	55 min
Jul 14, 5:25 PM CDT	Tornado Watch	SPC	Aitkin, Anoka, Benton, Brown, Carlton, Carver and 36 more	5 hr
Jul 14, 5:35 PM CDT	Tornado Watch	SPC	Cook, Lake, Saint Louis	4 hr
Jul 14, 5:55 PM CDT	Mesoscale Discussion	SPC	Itasca	2 hr
Jul 14, 6:49 PM CDT	Mesoscale Discussion	SPC	Blue Earth, Brown, Jackson, Martin, Nicollet, Watonwan	116 min

Nearby

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.