Alert archive / Minnesota / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 7, NWS Duluth, MN

June 1, 2020Pine County, Minnesota

NWS Duluth, MN issued this severe thunderstorm warning at Jun 1, 2020, 11:38 AM CDT for Pine County, Minnesota. It was in force for 22 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 1, 2020, 11:38 AM CDT (16:38 UTC)
Expired: Jun 1, 2020, 12:00 PM CDT
In force: 22 min
Issued by: NWS Duluth, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County Pine County, MN

The radar

The Duluth radar (KDLH), 89 km from the middle of the area, began a volume at 16:40 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, 4.6 hours before the alert went out and 156 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: 1145 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 430 m²/s²
0-3 km storm-relative helicity: 603 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Duluth, MN wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 1, 10:13 AM CDT, 1 hour 25 minutes earlier.

Area forecast discussion, Jun 1, 10:13 AM CDT, 1 hour 25 minutes before

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Hazardous weather outlook, Jun 1, 3:43 AM CDT, 7 hours 55 minutes before

Hazardous Weather Outlook
National Weather Service Duluth MN
343 AM CDT Mon Jun 1 2020

MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-020845-
Koochiching-North St. Louis-Northern Cook/Northern Lake-
North Itasca-Central St. Louis-Southern Lake/North Shore-
Southern Cook/North Shore-North Cass-South Itasca-South Cass-
Crow Wing-Northern Aitkin-South Aitkin-Carlton/South St. Louis-
Pine-Douglas-Bayfield-Ashland-Iron-Burnett-Washburn-Sawyer-Price-
343 AM CDT Mon Jun 1 2020

This Hazardous Weather Outlook is for portions of northeast
Minnesota and northwest Wisconsin.

.DAY ONE...Today and Tonight

Isolated thunderstorms will be possible today across the
Northland. A few storms may be strong with small hail being the
main threat. Isolated heavy rain may also occur.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Thunderstorms are again possible Tuesday afternoon and night,
mainly over southern portions of the Northland. Isolated severe
storms are possible.

There will be periodic chances for more thunderstorms through
next weekend.

.SPOTTER INFORMATION STATEMENT...

Skywarn spotters may be needed today and again Tuesday.

LSZ121-140>148-020845-
Bayfield to Oak Point WI-Grand Portage to Grand Marais MN-
Grand Marais to Taconite Harbor MN-
Taconite Harbor to Silver Bay Harbor MN-
Silver Bay Harbor to Two Harbors MN-Two Harbors to Duluth MN-
Duluth MN to Port Wing WI-Port Wing to Sand Island WI-
Sand Island to Bayfield WI-Oak Point to Saxon Harbor WI-
343 AM CDT Mon Jun 1 2020

This Hazardous Weather Outlook is for portions of the Nearshore
waters of western Lake Superior.

.DAY ONE...Today and Tonight

There is a chance for isolated thunderstorms today. A few storms
may be strong with small hail being the primary threat.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Additional thunderstorm chances are forecast Tuesday night and
then this upcoming weekend.

Melde/BJH

More information may be obtained at the following web address:
http://www.weather.gov/duluth (all lower case)

In the hours before

Local storm report, Jun 1, 10:27 AM CDT, 1 hour 11 minutes before

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Special weather statement, Jun 1, 10:41 AM CDT, 57 minutes before

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Special weather statement, Jun 1, 10:54 AM CDT, 44 minutes before

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Local storm report, Jun 1, 11:17 AM CDT, 21 minutes before

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Special weather statement, Jun 1, 11:17 AM CDT, 21 minutes before

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Local storm report, Jun 1, 11:33 AM CDT, 5 minutes before

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The office that day

Everything else NWS Duluth, MN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 1, 8:41 AM CDT	Special Weather Statement	DLH	Crow Wing	19 min
Jun 1, 9:00 AM CDT	Special Weather Statement	DLH	Aitkin	30 min
Jun 1, 9:14 AM CDT	Special Weather Statement	DLH	Crow Wing	31 min
Jun 1, 9:48 AM CDT	Special Weather Statement	DLH	Crow Wing	27 min
Jun 1, 10:03 AM CDT	Special Weather Statement	DLH	Crow Wing	27 min
Jun 1, 10:19 AM CDT	Severe Thunderstorm Warning	DLH	Aitkin, Crow Wing	26 min
Jun 1, 10:41 AM CDT	Special Weather Statement	DLH	Saint Louis	34 min
Jun 1, 10:54 AM CDT	Special Weather Statement	DLH	Aitkin	21 min
Jun 1, 11:17 AM CDT	Special Weather Statement	DLH	Kanabec	13 min
Jun 1, 12:02 PM CDT	Special Weather Statement	DLH	Pine	28 min
Jun 1, 12:30 PM CDT	Special Weather Statement	DLH	Pine	15 min
Jun 1, 12:47 PM CDT	Special Weather Statement	DLH	Pine	13 min
Jun 1, 12:33 PM CDT	Special Weather Statement	DLH	Burnett	12 min
Jun 1, 1:34 PM CDT	Special Weather Statement	DLH	Washburn	11 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2020 Every severe thunderstorm warning in 2020

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.