Alert archive / Wisconsin / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 9, NWS Duluth, MN

May 9, 2022Burnett County, Washburn County, Wisconsin

NWS Duluth, MN issued this severe thunderstorm warning at May 9, 2022, 6:42 PM CDT for Burnett County, Washburn County, Wisconsin. It was in force for 37 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: May 9, 2022, 6:42 PM CDT (23:42 UTC)
Expired: May 9, 2022, 7:19 PM CDT
In force: 37 min
Issued by: NWS Duluth, MN
Area: Storm-based polygon
Tornado: Possible
Hail: 1.25 in
Wind: 60.0 mph

Counties Burnett County, WI, Washburn County, WI

The radar

The Duluth radar (KDLH), 107 km from the middle of the area, began a volume at 23:40 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 watch it was issued in

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

Issued	Product	Office	Lasted
May 9, 2:50 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 11.7 hours before the alert went out and 165 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: 892 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 364 m²/s²
0-3 km storm-relative helicity: 413 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

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 May 9, 4:16 PM CDT, 2 hours 26 minutes earlier.

Area forecast discussion, May 9, 4:16 PM CDT, 2 hours 26 minutes before

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Hazardous weather outlook, May 9, 3:52 PM CDT, 2 hours 50 minutes before

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In the hours before

Special weather statement, May 9, 5:35 PM CDT, 1 hour 7 minutes before

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Local storm report, May 9, 5:49 PM CDT, 53 minutes before

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Special weather statement, May 9, 5:57 PM CDT, 45 minutes before

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Special weather statement, May 9, 6:01 PM CDT, 41 minutes before

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Special weather statement, May 9, 6:28 PM CDT, 14 minutes before

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Special weather statement, May 9, 6:31 PM CDT, 11 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
May 9, 3:55 AM CDT	Gale Warning	DLH		16 hr
May 9, 9:18 AM CDT	Special Weather Statement	DLH	Cass, Crow Wing	27 min
May 9, 9:29 AM CDT	Special Weather Statement	DLH	Aitkin	31 min
May 9, 9:40 AM CDT	Severe Thunderstorm Warning	DLH	Cass, Itasca	20 min
May 9, 9:42 AM CDT	Severe Thunderstorm Warning	DLH	Pine	48 min
May 9, 10:03 AM CDT	Special Weather Statement	DLH	Itasca	27 min
May 9, 10:30 AM CDT	Special Weather Statement	DLH	Koochiching	30 min
May 9, 10:38 AM CDT	Special Weather Statement	DLH	Carlton	22 min
May 9, 10:51 AM CDT	Special Weather Statement	DLH	Carlton	24 min
May 9, 11:12 AM CDT	Severe Thunderstorm Warning	DLH	Carlton, Saint Louis	48 min
May 9, 11:37 AM CDT	Special Weather Statement	DLH	Carlton	8 min
May 9, 12:03 PM CDT	Special Weather Statement	DLH	Lake	27 min
May 9, 12:06 PM CDT	Special Weather Statement	DLH	Lake	24 min
May 9, 12:33 PM CDT	Special Weather Statement	DLH	Lake	27 min
May 9, 4:44 PM CDT	Special Weather Statement	DLH	Aitkin	31 min
May 9, 5:03 PM CDT	Special Weather Statement	DLH	Carlton	27 min
May 9, 5:17 PM CDT	Special Weather Statement	DLH	Carlton	28 min
May 9, 5:23 PM CDT	Special Weather Statement	DLH	Carlton	37 min
May 9, 5:57 PM CDT	Special Weather Statement	DLH	Pine	33 min
May 9, 3:50 AM CDT	Wind Advisory	DLH	Ashland, Iron	16 hr
May 9, 10:17 AM CDT	Severe Thunderstorm Warning	DLH	Burnett	43 min
May 9, 10:43 AM CDT	Special Weather Statement	DLH	Burnett	17 min
May 9, 10:58 AM CDT	Severe Thunderstorm Warning	DLH	Burnett, Washburn	32 min
May 9, 11:06 AM CDT	Special Weather Statement	DLH	Washburn	24 min
May 9, 11:17 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DLH	Sawyer, Washburn	43 min
May 9, 11:50 AM CDT	Severe Thunderstorm Warning Considerable damage threat	DLH	Ashland, Bayfield, Iron, Sawyer	40 min
May 9, 5:35 PM CDT	Special Weather Statement	DLH	Burnett	25 min
May 9, 6:01 PM CDT	Special Weather Statement	DLH	Burnett, Washburn	29 min
May 9, 6:28 PM CDT	Special Weather Statement	DLH	Washburn	32 min
May 9, 6:31 PM CDT	Special Weather Statement	DLH	Douglas	29 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 2022 Every severe thunderstorm warning in 2022

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.