Alert archive / Minnesota / Winter Storm Warnings in 2014

Winter Storm Warning 7, NWS Duluth, MN

March 21, 2014Itasca County, Koochiching County, Saint Louis County, Minnesota

NWS Duluth, MN issued this winter storm warning at Mar 21, 2014, 8:50 AM CDT for Itasca County, Koochiching County, Saint Louis County, Minnesota. It was in force for 9 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Mar 21, 2014, 8:50 AM CDT (13:50 UTC)
Expired: Mar 21, 2014, 5:30 PM CDT
In force: 9 hr
Issued by: NWS Duluth, MN

Counties Itasca County, MN, Koochiching County, MN, Saint Louis County, MN

The radar

The Duluth radar (KDLH), 133 km from the middle of the area, began a volume at 13:49 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 12:00Z, 1.8 hours before the alert went out and 88 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: 477 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 94 m²/s²
0-3 km storm-relative helicity: 194 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 winter storm 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 winter storm warning went out at Mar 21, 6:53 AM CDT, 1 hour 57 minutes earlier.

Area forecast discussion, Mar 21, 6:53 AM CDT, 1 hour 57 minutes before

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Hazardous weather outlook, Mar 21, 4:02 AM CDT, 4 hours 48 minutes before

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In the hours before

Local storm report, Mar 21, 8:33 AM CDT, 17 minutes before

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Local storm report, Mar 21, 8:39 AM CDT, 11 minutes before

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Local storm report, Mar 21, 8:42 AM CDT, 8 minutes before

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Local storm report, Mar 21, 8:44 AM CDT, 6 minutes before

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Local storm report, Mar 21, 8:47 AM CDT, 3 minutes before

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Local storm report, Mar 21, 8:48 AM CDT, 2 minutes before

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Nearby

Winter Storm Warnings in Minnesota, 2014 Every winter storm warning in 2014

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.