Alert archive / Minnesota / Special Weather Statements in 2015

Special Weather Statement, NWS Duluth, MN

April 12, 2015Saint Louis County, Minnesota

NWS Duluth, MN issued this special weather statement at Apr 12, 2015, 5:21 PM CDT for Saint Louis County, Minnesota. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 12, 2015, 5:21 PM CDT (22:21 UTC)
Expired: Apr 12, 2015, 5:45 PM CDT
In force: 24 min
Issued by: NWS Duluth, MN

County Saint Louis County, MN

The nearest sounding before it

Minneapolis, MN (KMPX), launched 12:00Z, 10.4 hours before the alert went out and 276 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: 1575 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 152 m²/s²
0-3 km storm-relative helicity: 177 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Apr 12, 3:20 PM CDT, 2 hours 1 minute earlier.

Area forecast discussion, Apr 12, 3:20 PM CDT, 2 hours 1 minute before

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Hazardous weather outlook, Apr 12, 1:31 PM CDT, 3 hours 50 minutes before

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In the hours before

Special weather statement, Apr 12, 5:00 PM CDT, 21 minutes before

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Special weather statement, Apr 12, 5:03 PM CDT, 18 minutes before

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Local storm report, Apr 12, 5:04 PM CDT, 17 minutes before

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Special weather statement, Apr 12, 5:09 PM CDT, 12 minutes before

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Special weather statement, Apr 12, 5:20 PM CDT, 1 minute before

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Special weather statement, Apr 12, 5:21 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
Apr 12, 4:02 AM CDT	Small Craft Advisory	DLH		18 hr
Apr 12, 4:18 AM CDT	Special Weather Statement	DLH	Koochiching	27 min
Apr 12, 1:30 PM CDT	Fire Weather Watch	DLH	Aitkin, Carlton, Cass, Cook, Crow Wing, Itasca and 4 more	15 hr
Apr 12, 4:17 PM CDT	Special Weather Statement	DLH	Crow Wing	13 min
Apr 12, 4:30 PM CDT	Special Weather Statement	DLH	Crow Wing	15 min
Apr 12, 4:36 PM CDT	Special Weather Statement	DLH	Aitkin	24 min
Apr 12, 4:44 PM CDT	Special Weather Statement	DLH	Aitkin	16 min
Apr 12, 5:00 PM CDT	Special Weather Statement	DLH	Aitkin	15 min
Apr 12, 5:03 PM CDT	Special Weather Statement	DLH	Aitkin	12 min
Apr 12, 5:09 PM CDT	Special Weather Statement	DLH	Carlton	51 min
Apr 12, 5:20 PM CDT	Special Weather Statement	DLH	Aitkin	25 min
Apr 12, 5:39 PM CDT	Special Weather Statement	DLH	Aitkin	21 min
Apr 12, 5:43 PM CDT	Special Weather Statement	DLH	Saint Louis	17 min
Apr 12, 5:44 PM CDT	Special Weather Statement	DLH	Saint Louis	16 min
Apr 12, 5:58 PM CDT	Special Weather Statement	DLH	Pine	17 min
Apr 12, 6:01 PM CDT	Special Weather Statement	DLH	Aitkin	14 min
Apr 12, 6:04 PM CDT	Special Weather Statement	DLH	Saint Louis	26 min
Apr 12, 6:19 PM CDT	Special Weather Statement	DLH	Lake	26 min
Apr 12, 6:23 PM CDT	Special Weather Statement	DLH	Carlton, Pine	22 min
Apr 12, 6:44 PM CDT	Special Weather Statement	DLH	Carlton, Pine	16 min
Apr 12, 6:46 PM CDT	Special Weather Statement	DLH	Lake	14 min
Apr 12, 6:49 PM CDT	Special Weather Statement	DLH		26 min

Nearby

Special Weather Statements in Minnesota, 2015 Every special weather statement in 2015

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.