Alert archive / Minnesota / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 9, NWS Duluth, MN

June 4, 2019Carlton County, Saint Louis County, Minnesota

NWS Duluth, MN issued this severe thunderstorm warning at Jun 4, 2019, 4:30 PM CDT for Carlton County, Saint Louis County, Minnesota. It was in force for 30 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 4, 2019, 4:30 PM CDT (21:30 UTC)
Expired: Jun 4, 2019, 5:00 PM CDT
In force: 30 min
Issued by: NWS Duluth, MN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Carlton County, MN, Saint Louis County, MN

The radar

The Duluth radar (KDLH), 39 km from the middle of the area, began a volume at 21:29 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 4, 12:45 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 9.5 hours before the alert went out and 262 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: 1070 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 154 m²/s²
0-3 km storm-relative helicity: 174 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 4, 3:40 PM CDT, 50 minutes earlier.

Area forecast discussion, Jun 4, 3:40 PM CDT, 50 minutes before

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Hazardous weather outlook, Jun 4, 1:10 PM CDT, 3 hours 20 minutes before

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In the hours before

Special weather statement, Jun 4, 3:52 PM CDT, 38 minutes before

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Special weather statement, Jun 4, 4:01 PM CDT, 29 minutes before

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Special weather statement, Jun 4, 4:06 PM CDT, 24 minutes before

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Special weather statement, Jun 4, 4:19 PM CDT, 11 minutes before

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Special weather statement, Jun 4, 4:21 PM CDT, 9 minutes before

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Local storm report, Jun 4, 4:29 PM CDT, 1 minute 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 4, 12:21 PM CDT	Special Weather Statement	DLH	Koochiching	9 min
Jun 4, 12:36 PM CDT	Special Weather Statement	DLH	Koochiching	9 min
Jun 4, 12:47 PM CDT	Special Weather Statement	DLH	Koochiching	13 min
Jun 4, 12:52 PM CDT	Severe Thunderstorm Warning	DLH	Koochiching, Saint Louis	38 min
Jun 4, 1:37 PM CDT	Special Weather Statement	DLH		8 min
Jun 4, 1:46 PM CDT	Special Weather Statement	DLH	Koochiching	14 min
Jun 4, 1:50 PM CDT	Severe Thunderstorm Warning	DLH	Saint Louis	25 min
Jun 4, 1:52 PM CDT	Special Weather Statement	DLH		8 min
Jun 4, 2:01 PM CDT	Severe Thunderstorm Warning	DLH	Koochiching	44 min
Jun 4, 2:10 PM CDT	Severe Thunderstorm Warning	DLH	Saint Louis	50 min
Jun 4, 2:24 PM CDT	Special Weather Statement	DLH	Itasca	6 min
Jun 4, 2:31 PM CDT	Special Weather Statement	DLH	Itasca	29 min
Jun 4, 2:46 PM CDT	Special Weather Statement	DLH	Koochiching	14 min
Jun 4, 2:47 PM CDT	Special Weather Statement	DLH	Koochiching	13 min
Jun 4, 2:50 PM CDT	Special Weather Statement	DLH	Saint Louis	10 min
Jun 4, 3:00 PM CDT	Special Weather Statement	DLH	Koochiching	15 min
Jun 4, 3:02 PM CDT	Special Weather Statement	DLH	Koochiching	13 min
Jun 4, 3:04 PM CDT	Special Weather Statement	DLH	Saint Louis	11 min
Jun 4, 3:15 PM CDT	Special Weather Statement	DLH	Itasca	30 min
Jun 4, 3:17 PM CDT	Special Weather Statement	DLH	Saint Louis	13 min
Jun 4, 3:19 PM CDT	Special Weather Statement	DLH	Koochiching	11 min
Jun 4, 3:21 PM CDT	Severe Thunderstorm Warning	DLH	Koochiching	24 min
Jun 4, 3:31 PM CDT	Special Weather Statement	DLH	Koochiching	14 min
Jun 4, 3:33 PM CDT	Special Weather Statement	DLH	Lake	12 min
Jun 4, 3:42 PM CDT	Special Weather Statement	DLH	Saint Louis	33 min
Jun 4, 3:50 PM CDT	Special Weather Statement	DLH	Koochiching	10 min
Jun 4, 3:52 PM CDT	Special Weather Statement	DLH	Lake	8 min
Jun 4, 3:57 PM CDT	Severe Thunderstorm Warning	DLH	Saint Louis	18 min
Jun 4, 4:01 PM CDT	Special Weather Statement	DLH	Lake	14 min
Jun 4, 4:02 PM CDT	Severe Thunderstorm Warning	DLH	Carlton, Saint Louis	28 min
Jun 4, 4:06 PM CDT	Special Weather Statement	DLH	Itasca	9 min
Jun 4, 4:19 PM CDT	Special Weather Statement	DLH	Lake	26 min
Jun 4, 4:21 PM CDT	Special Weather Statement	DLH	Itasca	9 min
Jun 4, 4:59 PM CDT	Severe Thunderstorm Warning	DLH	Carlton, Saint Louis	31 min
Jun 4, 5:02 PM CDT	Special Marine Warning	DLH		43 min
Jun 4, 5:04 PM CDT	Special Weather Statement	DLH	Itasca	26 min
Jun 4, 5:05 PM CDT	Special Weather Statement	DLH		25 min
Jun 4, 5:19 PM CDT	Areal Flood Advisory	DLH	Saint Louis	5 hr
Jun 4, 5:32 PM CDT	Areal Flood Advisory	DLH	Carlton, Saint Louis	6 hr
Jun 4, 5:32 PM CDT	Special Weather Statement	DLH		28 min
Jun 4, 5:43 PM CDT	Special Weather Statement	DLH	Saint Louis	17 min
Jun 4, 5:46 PM CDT	Special Weather Statement	DLH	Itasca	29 min
Jun 4, 5:50 PM CDT	Special Marine Warning	DLH		55 min
Jun 4, 5:59 PM CDT	Special Weather Statement	DLH	Itasca	31 min
Jun 4, 6:08 PM CDT	Special Weather Statement	DLH	Itasca	37 min
Jun 4, 6:27 PM CDT	Special Weather Statement	DLH	Aitkin	33 min
Jun 4, 6:30 PM CDT	Special Marine Warning	DLH		60 min
Jun 4, 6:58 PM CDT	Special Weather Statement	DLH	Aitkin	32 min
Jun 4, 5:57 PM CDT	Special Weather Statement	DLH	Bayfield, Douglas	33 min
Jun 4, 6:20 PM CDT	Special Weather Statement	DLH	Bayfield	25 min
Jun 4, 6:42 PM CDT	Special Weather Statement	DLH	Ashland, Bayfield, Sawyer	33 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2019 Every severe thunderstorm warning 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.