Alert archive / Minnesota / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 24, NWS Duluth, MN

June 20, 2005Itasca County, Minnesota

NWS Duluth, MN issued this severe thunderstorm warning at Jun 20, 2005, 1:05 AM CDT for Itasca County, Minnesota. It was in force for 29 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 20, 2005, 1:05 AM CDT (06:05 UTC)
Expired: Jun 20, 2005, 1:34 AM CDT
In force: 29 min
Issued by: NWS Duluth, MN
Area: Counties, with a storm outline in the text

County Itasca County, MN

The radar

The Duluth radar (KDLH), 131 km from the middle of the area, began a volume at 06:08 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

International Fa, MN (KINL), launched 00:00Z, 6.1 hours before the alert went out and 120 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: 1727 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 1461 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 76 m²/s²
0-3 km storm-relative helicity: 128 m²/s²
Significant tornado parameter: 0.6
Supercell composite: 7.9

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 19, 2:30 PM CDT, 10 hours 35 minutes earlier.

Area forecast discussion, Jun 19, 2:30 PM CDT, 10 hours 35 minutes before

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Hazardous weather outlook, Jun 19, 7:30 AM CDT, 17 hours 35 minutes before

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In the hours before

Local storm report, Jun 19, 10:44 PM CDT, 2 hours 21 minutes before

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      <div class="status" id="status">Temporary Notice</div>
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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 19, 8:41 PM CDT	Severe Thunderstorm Warning	DLH	Koochiching	64 min
Jun 19, 9:43 PM CDT	Severe Thunderstorm Warning	DLH	Koochiching	62 min
Jun 19, 10:44 PM CDT	Severe Thunderstorm Warning	DLH	Koochiching	62 min
Jun 20, 10:53 AM CDT	Severe Thunderstorm Warning	DLH	Cass	70 min
Jun 20, 11:20 AM CDT	Severe Thunderstorm Warning	DLH	Crow Wing	59 min
Jun 20, 12:02 PM CDT	Severe Thunderstorm Warning	DLH	Aitkin	61 min
Jun 20, 1:00 PM CDT	Severe Thunderstorm Warning	DLH	Carlton	60 min
Jun 20, 1:02 PM CDT	Severe Thunderstorm Warning	DLH	Pine	42 min
Jun 20, 1:17 PM CDT	Special Marine Warning	DLH		88 min
Jun 20, 1:28 PM CDT	Severe Thunderstorm Warning	DLH	Burnett	40 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 2005 Every severe thunderstorm warning in 2005

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.