Alert archive / Minnesota / Mesoscale Discussions in 2007

Mesoscale Discussion 1367

July 3, 200718 counties in Minnesota

The Storm Prediction Center issued this mesoscale discussion at Jul 3, 2007, 2:00 PM CDT for 18 counties in Minnesota. It was in force for 90 min.

The area

The outline as issued.

The facts

Issued: Jul 3, 2007, 2:00 PM CDT (19:00 UTC)
Expired: Jul 3, 2007, 3:30 PM CDT
In force: 90 min
Issued by: the Storm Prediction Center

Counties Aitkin County, MN, Becker County, MN, Beltrami County, MN, Cass County, MN, Clay County, MN, Clearwater County, MN, Crow Wing County, MN, Hubbard County, MN, Itasca County, MN, Koochiching County, MN, Mahnomen County, MN, Norman County, MN, Otter Tail County, MN, Pennington County, MN, Polk County, MN, Red Lake County, MN, Wadena County, MN, Wilkin County, MN

The radar

The Duluth radar (KDLH), 195 km from the middle of the area, began a volume at 19:02 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 12:00Z, 7.0 hours before the alert went out and 155 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1340 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: -5 m²/s²
0-3 km storm-relative helicity: 17 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 3, 6:39 AM CDT	Mesoscale Discussion	SPC	Big Stone, Grant, Lac qui Parle, Stevens, Swift, Traverse and 1 more	2 hr
Jul 3, 11:34 AM CDT	Mesoscale Discussion	SPC	Anoka, Blue Earth, Brown, Carver, Chisago, Dakota and 23 more	86 min
Jul 3, 12:10 PM CDT	Tornado Watch	SPC	Aitkin, Anoka, Benton, Blue Earth, Brown, Carlton and 35 more	8 hr
Jul 3, 3:36 PM CDT	Mesoscale Discussion	SPC	Jackson, Martin, Nobles, Rock	84 min
Jul 3, 3:59 PM CDT	Tornado Watch	SPC	Jackson, Nobles	8 hr
Jul 3, 5:50 PM CDT	Mesoscale Discussion	SPC	Aitkin, Anoka, Benton, Blue Earth, Brown, Carlton and 35 more	55 min
Jul 3, 6:08 PM CDT	Tornado Watch	SPC	Dodge, Fillmore, Houston, Mower, Olmsted, Wabasha and 1 more	6 hr
Jul 3, 6:55 PM CDT	Mesoscale Discussion	SPC	Faribault, Freeborn, Jackson, Martin, Nobles	95 min

Nearby

Mesoscale Discussions in Minnesota, 2007 Every mesoscale discussion in 2007

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.