Alert archive / Wisconsin / Tornado Warnings in 2010

Tornado Warning 24, NWS Duluth, MN

July 11, 2010Burnett County, Washburn County, Wisconsin

NWS Duluth, MN issued this tornado warning at Jul 11, 2010, 3:39 PM CDT for Burnett County, Washburn County, Wisconsin. It was in force for 51 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: Jul 11, 2010, 3:39 PM CDT (20:39 UTC)
Expired: Jul 11, 2010, 4:30 PM CDT
In force: 51 min
Issued by: NWS Duluth, MN
Area: Storm-based polygon

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 20:39 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, 8.7 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: 37 J/kg
Mixed-layer CIN: -253 J/kg
Mixed-layer LCL: 1595 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: -13 m²/s²
0-3 km storm-relative helicity: 24 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 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 Jul 11, 3:16 PM CDT, 23 minutes earlier.

Area forecast discussion, Jul 11, 3:16 PM CDT, 23 minutes before

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Hazardous weather outlook, Jul 11, 5:45 AM CDT, 9 hours 54 minutes before

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In the hours before

Special weather statement, Jul 11, 1:46 PM CDT, 1 hour 53 minutes before

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Special weather statement, Jul 11, 2:17 PM CDT, 1 hour 22 minutes before

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Special weather statement, Jul 11, 2:25 PM CDT, 1 hour 14 minutes before

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Special weather statement, Jul 11, 2:29 PM CDT, 1 hour 10 minutes before

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Special weather statement, Jul 11, 2:37 PM CDT, 1 hour 2 minutes before

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Special weather statement, Jul 11, 2:56 PM CDT, 43 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
Jul 10, 7:52 PM CDT	Special Weather Statement	DLH	Aitkin, Crow Wing	23 min
Jul 10, 8:20 PM CDT	Special Weather Statement	DLH	Aitkin	25 min
Jul 10, 8:50 PM CDT	Special Weather Statement	DLH	Aitkin	40 min
Jul 10, 9:18 PM CDT	Severe Thunderstorm Warning	DLH	Itasca, Saint Louis	40 min
Jul 10, 9:28 PM CDT	Special Weather Statement	DLH	Carlton	62 min
Jul 10, 9:46 PM CDT	Severe Thunderstorm Warning	DLH	Carlton, Saint Louis	59 min
Jul 10, 10:29 PM CDT	Special Marine Warning	DLH		41 min
Jul 10, 10:32 PM CDT	Special Weather Statement	DLH	Lake	43 min
Jul 10, 10:40 PM CDT	Severe Thunderstorm Warning	DLH	Carlton, Saint Louis	50 min
Jul 10, 11:04 PM CDT	Special Weather Statement	DLH	Koochiching	56 min
Jul 10, 11:23 PM CDT	Special Weather Statement	DLH	Lake	52 min
Jul 10, 11:46 PM CDT	Severe Thunderstorm Warning	DLH	Carlton, Pine	44 min
Jul 11, 12:02 AM CDT	Special Weather Statement	DLH	Cook	43 min
Jul 11, 12:31 AM CDT	Special Weather Statement	DLH	Cook	59 min
Jul 11, 1:13 AM CDT	Special Weather Statement	DLH	Koochiching	77 min
Jul 11, 3:45 AM CDT	Special Weather Statement	DLH	Itasca	60 min
Jul 11, 4:34 AM CDT	Special Weather Statement	DLH	Cass, Crow Wing	56 min
Jul 11, 7:27 AM CDT	Special Weather Statement	DLH	Lake	33 min
Jul 11, 9:18 AM CDT	Special Marine Warning	DLH		42 min
Jul 11, 12:52 PM CDT	Special Weather Statement	DLH	Pine	23 min
Jul 11, 1:29 PM CDT	Special Weather Statement	DLH	Pine	46 min
Jul 10, 11:19 PM CDT	Special Weather Statement	DLH	Bayfield	26 min
Jul 10, 11:46 PM CDT	Special Weather Statement	DLH	Bayfield	14 min
Jul 11, 12:39 AM CDT	Special Weather Statement	DLH	Douglas	21 min
Jul 11, 1:09 PM CDT	Special Weather Statement	DLH	Ashland, Bayfield	36 min
Jul 11, 1:46 PM CDT	Special Weather Statement	DLH	Ashland	44 min
Jul 11, 2:17 PM CDT	Special Weather Statement	DLH	Burnett	43 min
Jul 11, 2:25 PM CDT	Special Weather Statement	DLH	Ashland	50 min
Jul 11, 2:29 PM CDT	Special Weather Statement	DLH	Douglas	46 min
Jul 11, 2:37 PM CDT	Special Weather Statement	DLH	Burnett	38 min
Jul 11, 2:52 PM CDT	Severe Thunderstorm Warning	DLH	Burnett	25 min
Jul 11, 2:56 PM CDT	Special Weather Statement	DLH	Iron	34 min
Jul 11, 4:24 PM CDT	Special Weather Statement	DLH	Iron, Sawyer	21 min
Jul 11, 4:46 PM CDT	Special Weather Statement	DLH	Iron, Sawyer	44 min
Jul 11, 5:29 PM CDT	Special Weather Statement	DLH	Price	16 min
Jul 11, 5:46 PM CDT	Special Weather Statement	DLH	Price	29 min
Jul 11, 5:52 PM CDT	Special Weather Statement	DLH	Washburn	23 min
Jul 11, 6:04 PM CDT	Special Weather Statement	DLH	Sawyer	26 min
Jul 11, 6:08 PM CDT	Severe Thunderstorm Warning	DLH	Price	37 min
Jul 11, 6:22 PM CDT	Special Weather Statement	DLH	Washburn	23 min
Jul 11, 6:36 PM CDT	Special Weather Statement	DLH	Sawyer	39 min
Jul 11, 6:47 PM CDT	Special Weather Statement	DLH	Price	13 min
Jul 11, 6:59 PM CDT	Special Weather Statement	DLH	Price	31 min

Nearby

Tornado Warnings in Wisconsin, 2010 Every tornado warning in 2010 Tornadoes in 2010

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.