Alert archive / Minnesota / Mesoscale Discussions in 2008

Mesoscale Discussion 1019

May 25, 2008Gogebic County, Michigan; 10 counties in Minnesota; 7 counties in Wisconsin

The Storm Prediction Center issued this mesoscale discussion at May 25, 2008, 9:56 AM CDT for Gogebic County, Michigan; 10 counties in Minnesota; 7 counties in Wisconsin. It was in force for 94 min.

The area

The outline as issued.

The facts

Issued: May 25, 2008, 9:56 AM CDT (14:56 UTC)
Expired: May 25, 2008, 11:30 AM CDT
In force: 94 min
Issued by: the Storm Prediction Center

Counties Gogebic County, MI, Benton County, MN, Carlton County, MN, Cook County, MN, Isanti County, MN, Kanabec County, MN, Mille Lacs County, MN, Morrison County, MN, Pine County, MN, Sherburne County, MN, Stearns County, MN, Ashland County, WI, Bayfield County, WI, Burnett County, WI, Douglas County, WI, Iron County, WI, Sawyer County, WI, Washburn County, WI

The radar

The Duluth radar (KDLH), 60 km from the middle of the area, began a volume at 15:00 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

Minneapolis, MN (KMPX), launched 12:00Z, 2.9 hours before the alert went out and 205 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: 58 J/kg
Mixed-layer CIN: -266 J/kg
Mixed-layer LCL: 641 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 53 m²/s²
0-3 km storm-relative helicity: 45 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -3.1

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
May 24, 8:07 PM CDT	Tornado Watch	SPC	Becker, Clay, Grant, Kittson, Mahnomen, Marshall and 7 more	3 hr
May 24, 9:01 PM CDT	Mesoscale Discussion	SPC	Big Stone, Brown, Chippewa, Cottonwood, Jackson, Kandiyohi and 18 more	59 min
May 24, 9:26 PM CDT	Mesoscale Discussion	SPC	Becker, Clay, Clearwater, Douglas, Grant, Kittson and 9 more	2 hr
May 25, 12:43 PM CDT	Mesoscale Discussion	SPC	Anoka, Benton, Blue Earth, Brown, Carver, Chisago and 33 more	92 min
May 25, 2:04 PM CDT	Tornado Watch PDS	SPC	Anoka, Blue Earth, Brown, Carver, Chisago, Dakota and 29 more	6 hr
May 25, 2:25 PM CDT	Mesoscale Discussion	SPC	Aitkin, Beltrami, Carlton, Cass, Crow Wing, Hubbard and 10 more	35 min
May 25, 2:45 PM CDT	Tornado Watch	SPC	Aitkin, Beltrami, Benton, Carlton, Cass, Cook and 14 more	6 hr
May 25, 6:01 PM CDT	Mesoscale Discussion	SPC	Aitkin, Anoka, Benton, Carlton, Carver, Cass and 20 more	59 min

Nearby

Mesoscale Discussions in Minnesota, 2008 Mesoscale Discussions in Wisconsin, 2008 Mesoscale Discussions in Michigan, 2008 Every mesoscale discussion in 2008

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.