Alert archive / Minnesota / Mesoscale Discussions in 2019

Mesoscale Discussion 1024

June 8, 20199 counties in Minnesota; Cass County, Ransom County, Richland County, North Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 8, 2019, 12:59 PM CDT for 9 counties in Minnesota; Cass County, Ransom County, Richland County, North Dakota. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jun 8, 2019, 12:59 PM CDT (17:59 UTC)
Expired
Jun 8, 2019, 3:00 PM CDT
In force
2 hr
Issued by
the Storm Prediction Center
Chance of a watch
60%

Counties Becker County, MN, Clay County, MN, Mahnomen County, MN, Norman County, MN, Otter Tail County, MN, Pennington County, MN, Polk County, MN, Red Lake County, MN, Wilkin County, MN, Cass County, ND, Ransom County, ND, Richland County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 84 km from the middle of the area, began a volume at 18:02 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Aberdeen, SD (KABR), launched 12:00Z, 6.0 hours before the alert went out and 281 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-pSkew-T log-p diagram, Aberdeen, SD at 12:00Z on 2019-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 149 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 12:00Z on 2019-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 238 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
149 J/kg
Mixed-layer CIN
-327 J/kg
Mixed-layer LCL
1691 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
238 m²/s²
0-3 km storm-relative helicity
235 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.

IssuedProductOfficeCountiesLasted
Jun 8, 1:24 PM CDTSevere Thunderstorm WatchSPCBeltrami, Clay, Clearwater, Kittson, Lake of the Woods, Mahnomen and 7 more5 hr
Jun 8, 3:47 PM CDTMesoscale DiscussionSPCBig Stone, Traverse88 min
Jun 8, 4:56 PM CDTMesoscale DiscussionSPCBecker, Beltrami, Clay, Clearwater, Lake of the Woods, Mahnomen and 8 more94 min
Jun 7, 7:24 PM CDTSevere Thunderstorm WatchSPCAdams, Barnes, Benson, Bowman, Burleigh, Cavalier and 20 more6 hr
Jun 7, 8:03 PM CDTMesoscale DiscussionSPCAdams, Bowman, Grant, Hettinger, Sioux, Slope87 min
Jun 7, 11:19 PM CDTMesoscale DiscussionSPCBurleigh, Emmons, Kidder, Logan, McIntosh, Sioux56 min

Nearby

Mesoscale Discussions in Minnesota, 2019Mesoscale Discussions in North Dakota, 2019Every mesoscale discussion in 2019

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.