Alert archive / Minnesota / Winter Storm Warnings in 2008

Winter Storm Warning 8, NWS Duluth, MN

December 19, 200810 counties in Minnesota; 8 counties in Wisconsin

NWS Duluth, MN issued this winter storm warning at Dec 19, 2008, 3:14 PM CST for 10 counties in Minnesota; 8 counties in Wisconsin. It took effect at Dec 20, 2008, 3:33 AM CST. It was in force for 50 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: Dec 19, 2008, 3:14 PM CST (21:14 UTC)
In effect from: Dec 20, 2008, 3:33 AM CST
Expired: Dec 22, 2008, 6:00 AM CST
In force: 50 hr
Issued by: NWS Duluth, MN

Counties Aitkin County, MN, Carlton County, MN, Cass County, MN, Cook County, MN, Crow Wing County, MN, Itasca County, MN, Koochiching County, MN, Lake County, MN, Pine County, MN, Saint Louis County, MN, Ashland County, WI, Bayfield County, WI, Burnett County, WI, Douglas County, WI, Iron County, WI, Price County, WI, Sawyer County, WI, Washburn County, WI

The radar

The Duluth radar (KDLH), 15 km from the middle of the area, began a volume at 21:16 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

Green Bay/Straub, WI (KGRB), launched 12:00Z, 9.2 hours before the alert went out and 401 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: 588 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 44 m²/s²
0-3 km storm-relative helicity: 135 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 Dec 19, 3:07 PM CST, 7 minutes earlier.

Area forecast discussion, Dec 19, 3:07 PM CST, 7 minutes before

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Hazardous weather outlook, Dec 19, 5:32 AM CST, 9 hours 42 minutes before

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In the hours before

Local storm report, Dec 19, 12:48 PM CST, 2 hours 26 minutes before

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Local storm report, Dec 19, 12:55 PM CST, 2 hours 19 minutes before

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Local storm report, Dec 19, 1:04 PM CST, 2 hours 10 minutes before

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Local storm report, Dec 19, 2:14 PM CST, 1 hour before

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Local storm report, Dec 19, 3:06 PM CST, 8 minutes before

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Local storm report, Dec 19, 3:10 PM CST, 4 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
Dec 18, 9:38 PM CST	Lake Effect Snow Warning	DLH	Carlton, Cook, Lake, Saint Louis	30 hr
Dec 18, 9:38 PM CST	Lake Effect Snow Advisory	DLH	Cook	24 hr

Nearby

Winter Storm Warnings in Minnesota, 2008 Winter Storm Warnings in Wisconsin, 2008 Every winter storm warning in 2008

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.