Alert archive / Wisconsin / Winter Weather Advisories in 2012
Winter Weather Advisory 21, NWS Duluth, MN
NWS Duluth, MN issued this winter weather advisory at Dec 19, 2012, 1:01 PM CST for 6 counties in Wisconsin. It took effect at Dec 20, 2012, 3:00 AM CST. It was in force for 25 hr.
The area
The counties it named.
The facts
- Issued
- Dec 19, 2012, 1:01 PM CST (19:01 UTC)
- In effect from
- Dec 20, 2012, 3:00 AM CST
- Expired
- Dec 21, 2012, 3:56 AM CST
- In force
- 25 hr
- Issued by
- NWS Duluth, MN
Counties Ashland County, WI, Bayfield County, WI, Douglas County, WI, Iron County, WI, Price County, WI, Sawyer County, WI
The radar
The Duluth radar (KDLH), 118 km from the middle of the area, began a volume at 19:05 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, 7.0 hours before the alert went out and 260 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 658 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 27 m²/s²
- 0-3 km storm-relative helicity
- 150 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter weather advisory 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 weather advisory went out at Dec 19, 12:12 PM CST, 49 minutes earlier.
Area forecast discussion, Dec 19, 12:12 PM CST, 49 minutes before
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<div class="status" id="status">Temporary Notice</div>
<h1 id="headline">This service is currently unavailable.</h1>
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The site you requested is temporarily down for maintenance or an unexpected outage.
</p>
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Please try again in a few minutes.
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</html>The office that day
Everything else NWS Duluth, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 19, 3:34 PM CST | Small Craft Advisory | DLH | 52 hr |
Nearby
Winter Weather Advisories in Wisconsin, 2012Every winter weather advisory in 2012
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.