Alert archive / Minnesota / Blizzard Warnings in 2008

Blizzard Warning 1, NWS Duluth, MN

April 9, 2008Carlton County, Lake County, Saint Louis County, Minnesota; Ashland County, Bayfield County, Douglas County, Wisconsin

NWS Duluth, MN issued this blizzard warning at Apr 9, 2008, 3:32 PM CDT for Carlton County, Lake County, Saint Louis County, Minnesota; Ashland County, Bayfield County, Douglas County, Wisconsin. It took effect at Apr 10, 2008, 4:24 PM CDT. It was in force for 23 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: Apr 9, 2008, 3:32 PM CDT (20:32 UTC)
In effect from: Apr 10, 2008, 4:24 PM CDT
Expired: Apr 11, 2008, 3:16 PM CDT
In force: 23 hr
Issued by: NWS Duluth, MN

Counties Carlton County, MN, Lake County, MN, Saint Louis County, MN, Ashland County, WI, Bayfield County, WI, Douglas County, WI

The radar

The Duluth radar (KDLH), 37 km from the middle of the area, began a volume at 20:37 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, 8.5 hours before the alert went out and 269 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: 1 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 497 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: -63 m²/s²
0-3 km storm-relative helicity: -38 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 blizzard 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 blizzard warning went out at Apr 9, 11:04 AM CDT, 4 hours 28 minutes earlier.

Area forecast discussion, Apr 9, 11:04 AM CDT, 4 hours 28 minutes before

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Hazardous weather outlook, Apr 9, 6:02 AM CDT, 9 hours 30 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 9, 4:29 AM CDT	Blizzard Watch	DLH	Carlton, Saint Louis	11 hr
Apr 9, 4:29 AM CDT	Winter Storm Watch	DLH	Aitkin, Cass, Cook, Crow Wing, Itasca, Lake and 2 more	11 hr
Apr 9, 3:32 PM CDT	Winter Storm Warning	DLH	Aitkin, Carlton, Cass, Cook, Crow Wing, Itasca and 3 more	60 hr

Nearby

Blizzard Warnings in Minnesota, 2008 Blizzard Warnings in Wisconsin, 2008 Every blizzard 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.