Alert archive / Minnesota / Mesoscale Discussions in 2018

Mesoscale Discussion 741

June 15, 201814 counties in Minnesota; 9 counties in North Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 15, 2018, 1:33 AM CDT for 14 counties in Minnesota; 9 counties in North Dakota. It was in force for 87 min.

The area

The outline as issued.

The facts

Issued: Jun 15, 2018, 1:33 AM CDT (06:33 UTC)
Expired: Jun 15, 2018, 3:00 AM CDT
In force: 87 min
Issued by: the Storm Prediction Center

All 23 counties

Becker County, MN, Beltrami County, MN, Clay County, MN, Clearwater County, MN, Kittson County, MN, Koochiching County, MN, Lake of the Woods County, MN, Mahnomen County, MN, Marshall County, MN, Norman County, MN, Pennington County, MN, Polk County, MN, Red Lake County, MN, Roseau County, MN, Barnes County, ND, Cass County, ND, Grand Forks County, ND, Griggs County, ND, Nelson County, ND, Pembina County, ND, Steele County, ND, Traill County, ND, Walsh County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 123 km from the middle of the area, began a volume at 06:34 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, 6.6 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2460 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 80 m²/s²
0-3 km storm-relative helicity: 184 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 15, 2:41 AM CDT	Mesoscale Discussion	SPC	Cook, Lake	3 hr
Jun 15, 11:26 AM CDT	Mesoscale Discussion	SPC	Aitkin, Benton, Carlton, Crow Wing, Kanabec, Mille Lacs and 2 more	64 min
Jun 15, 3:56 PM CDT	Mesoscale Discussion	SPC	Dodge, Faribault, Fillmore, Freeborn, Goodhue, Houston and 7 more	2 hr
Jun 14, 7:54 PM CDT	Mesoscale Discussion	SPC	Benson, Cavalier, Pembina, Ramsey, Towner, Walsh	96 min
Jun 14, 8:32 PM CDT	Tornado Watch	SPC	Benson, Cavalier, Pembina, Ramsey, Towner, Walsh	5 hr
Jun 14, 11:14 PM CDT	Mesoscale Discussion	SPC	Benson, Cavalier, Pembina, Ramsey, Towner, Walsh	91 min

Nearby

Mesoscale Discussions in Minnesota, 2018 Mesoscale Discussions in North Dakota, 2018 Every mesoscale discussion in 2018

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.