Alert archive / Minnesota / Tornado Warnings in 2024

Tornado Warning 14, NWS Duluth, MN

June 18, 2024Saint Louis County, Minnesota

NWS Duluth, MN issued this tornado warning at Jun 18, 2024, 5:07 PM CDT for Saint Louis County, Minnesota. It was in force for 23 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 18, 2024, 5:07 PM CDT (22:07 UTC)
Expired: Jun 18, 2024, 5:30 PM CDT
In force: 23 min
Issued by: NWS Duluth, MN
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Saint Louis County, MN

The radar

The Duluth radar (KDLH), 86 km from the middle of the area, began a volume at 22:05 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 18, 1:24 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 10.1 hours before the alert went out and 317 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: 1493 J/kg
Mixed-layer CIN: -220 J/kg
Mixed-layer LCL: 885 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 308 m²/s²
0-3 km storm-relative helicity: 317 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at Jun 18, 3:57 PM CDT, 1 hour 10 minutes earlier.

Area forecast discussion, Jun 18, 3:57 PM CDT, 1 hour 10 minutes before

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Hazardous weather outlook, Jun 18, 1:30 PM CDT, 3 hours 37 minutes before

Hazardous Weather Outlook
National Weather Service Duluth MN
130 PM CDT Tue Jun 18 2024

MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-191830-
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-
130 PM CDT Tue Jun 18 2024

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

.DAY ONE...This afternoon and Tonight

Scattered strong to severe thunderstorms are expected today.
Primary hazard is damaging wind gusts to 70 mph, large hail to 2
inches in diameter and a few tornadoes. A Severe Thunderstorm
Watch is in effect for most of Minnesota until 8PM. Periods of
moderate to heavy rain are expected today and tonight. Flash
flooding is possible, and a Flash Flood Watch is in effect.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Additional rain and thunderstorms are expected late-week into
this weekend. Heavy rain and some flooding issues are possible.

.SPOTTER INFORMATION STATEMENT...

Skywarn spotters are encouraged to report hail, wind damage, and
rainfall amounts to the National Weather Service.

LSZ121-140>148-150-191830-
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-
Outer Apostle Islands Beyond 5 NM from Mainland-
130 PM CDT Tue Jun 18 2024

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

.DAY ONE...This afternoon and Tonight

Strong south winds with gusts up to 25 knots and waves up to 3
feet are expected this evening. A small craft advisory is in
effect. Isolated to scattered strong to severe storms are possible
through this evening with hail, wind, and heavy rain.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

The probability for widespread hazardous weather is low.

Levens

More information may be obtained at the following web address:
http://www.weather.gov/duluth

In the hours before

Local storm report, Jun 18, 4:37 PM CDT, 30 minutes before

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Local storm report, Jun 18, 4:46 PM CDT, 21 minutes before

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Local storm report, Jun 18, 4:47 PM CDT, 20 minutes before

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Local storm report, Jun 18, 4:59 PM CDT, 8 minutes before

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Local storm report, Jun 18, 5:04 PM CDT, 3 minutes before

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Local storm report, Jun 18, 5:07 PM CDT, 0 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 17, 11:24 PM CDT	Special Weather Statement	DLH	Cass	36 min
Jun 18, 1:33 AM CDT	Special Weather Statement	DLH	Aitkin, Crow Wing	42 min
Jun 18, 2:08 AM CDT	Special Weather Statement	DLH	Crow Wing	37 min
Jun 18, 2:29 AM CDT	Special Weather Statement	DLH	Aitkin, Carlton	31 min
Jun 18, 2:51 AM CDT	Areal Flood Advisory	DLH	Aitkin, Carlton, Crow Wing, Saint Louis	4 hr
Jun 18, 2:53 AM CDT	Special Weather Statement	DLH	Crow Wing	37 min
Jun 18, 3:03 AM CDT	Special Weather Statement	DLH	Aitkin, Carlton	42 min
Jun 18, 3:15 AM CDT	Special Weather Statement	DLH	Aitkin	30 min
Jun 18, 3:18 AM CDT	Special Weather Statement	DLH	Aitkin	27 min
Jun 18, 3:23 AM CDT	Severe Thunderstorm Warning	DLH	Aitkin, Cass, Crow Wing, Itasca	37 min
Jun 18, 3:40 AM CDT	Special Weather Statement	DLH	Carlton	35 min
Jun 18, 3:42 AM CDT	Special Weather Statement	DLH	Aitkin	33 min
Jun 18, 4:00 AM CDT	Special Weather Statement	DLH	Aitkin	30 min
Jun 18, 4:25 AM CDT	Special Weather Statement	DLH	Saint Louis	35 min
Jun 18, 4:29 AM CDT	Special Weather Statement	DLH	Koochiching	31 min
Jun 18, 4:52 AM CDT	Special Weather Statement	DLH	Koochiching	23 min
Jun 18, 5:02 AM CDT	Severe Thunderstorm Warning	DLH	Cass, Crow Wing, Itasca, Koochiching	58 min
Jun 18, 5:09 AM CDT	Severe Thunderstorm Warning	DLH	Koochiching	52 min
Jun 18, 5:43 AM CDT	Special Weather Statement	DLH	Lake	32 min
Jun 18, 5:56 AM CDT	Special Weather Statement	DLH	Cass	34 min
Jun 18, 5:58 AM CDT	Special Weather Statement	DLH	Itasca	32 min
Jun 18, 6:03 AM CDT	Special Weather Statement	DLH	Koochiching	27 min
Jun 18, 6:25 AM CDT	Special Weather Statement	DLH	Itasca	35 min
Jun 18, 6:27 AM CDT	Special Weather Statement	DLH	Koochiching	33 min
Jun 18, 8:55 AM CDT	Special Weather Statement	DLH	Itasca	35 min
Jun 18, 10:50 AM CDT	Special Weather Statement	DLH		25 min
Jun 18, 12:12 PM CDT	Special Weather Statement	DLH	Itasca	33 min
Jun 18, 12:36 PM CDT	Severe Thunderstorm Warning	DLH	Itasca, Saint Louis	39 min
Jun 18, 1:03 PM CDT	Areal Flood Advisory	DLH	Cass, Itasca, Saint Louis	75 min
Jun 18, 1:11 PM CDT	Special Weather Statement	DLH	Saint Louis	34 min
Jun 18, 1:28 PM CDT	Severe Thunderstorm Warning	DLH	Saint Louis	47 min
Jun 18, 1:57 PM CDT	Severe Thunderstorm Warning	DLH	Cass, Itasca	48 min
Jun 18, 1:59 PM CDT	Tornado Warning	DLH	Lake, Saint Louis	21 min
Jun 18, 2:13 PM CDT	Flash Flood Warning	DLH	Itasca, Saint Louis	7 hr
Jun 18, 2:18 PM CDT	Tornado Warning	DLH	Lake, Saint Louis	42 min
Jun 18, 2:46 PM CDT	Tornado Warning	DLH	Cass, Itasca	29 min
Jun 18, 2:48 PM CDT	Severe Thunderstorm Warning	DLH	Cass, Itasca	42 min
Jun 18, 2:51 PM CDT	Tornado Warning	DLH	Lake, Saint Louis	39 min
Jun 18, 3:05 PM CDT	Tornado Warning	DLH	Cass, Itasca	40 min
Jun 18, 3:09 PM CDT	Severe Thunderstorm Warning	DLH	Cass, Itasca, Saint Louis	39 min
Jun 18, 3:10 PM CDT	Tornado Warning	DLH	Cass, Itasca	37 min
Jun 18, 3:24 PM CDT	Flash Flood Warning Considerable damage threat	DLH	Saint Louis	9 hr
Jun 18, 4:01 PM CDT	Flash Flood Warning	DLH	Cass, Crow Wing, Itasca, Koochiching, Saint Louis	5 hr
Jun 18, 4:53 PM CDT	Special Marine Warning	DLH		67 min
Jun 18, 4:58 PM CDT	Flash Flood Warning	DLH	Lake, Saint Louis	4 hr
Jun 18, 5:05 PM CDT	Severe Thunderstorm Warning	DLH	Cass, Crow Wing	26 min
Jun 18, 5:34 PM CDT	Tornado Warning Tornado observed	DLH	Saint Louis	24 min
Jun 18, 5:41 PM CDT	Special Marine Warning	DLH		64 min
Jun 18, 6:19 PM CDT	Flash Flood Warning	DLH	Cook, Lake, Saint Louis	6 hr
Jun 18, 6:53 PM CDT	Marine Dense Fog Advisory	DLH		12 hr
Jun 18, 6:55 PM CDT	Areal Flood Advisory	DLH	Aitkin, Carlton, Crow Wing, Itasca, Saint Louis	3 hr
Jun 18, 6:56 PM CDT	Severe Thunderstorm Warning	DLH	Lake, Saint Louis	34 min

Nearby

Tornado Warnings in Minnesota, 2024 Every tornado warning in 2024 Tornadoes in 2024

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.