Alert archive / Wisconsin / Wind Chill Advisories in 2020

Wind Chill Advisory 1, NWS Green Bay, WI

February 12, 20207 counties in Wisconsin

NWS Green Bay, WI issued this wind chill advisory at Feb 12, 2020, 2:58 PM CST for 7 counties in Wisconsin. It took effect at Feb 13, 2020, 3:00 AM CST. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Feb 12, 2020, 2:58 PM CST (20:58 UTC)
In effect from: Feb 13, 2020, 3:00 AM CST
Expired: Feb 13, 2020, 10:00 AM CST
In force: 7 hr
Issued by: NWS Green Bay, WI

Counties Forest County, WI, Langlade County, WI, Lincoln County, WI, Marathon County, WI, Oneida County, WI, Vilas County, WI, Wood County, WI

The radar

The Green Bay radar (KGRB), 143 km from the middle of the area, began a volume at 21:03 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

Davenport, (KDVN), launched 12:00Z, 9.0 hours before the alert went out and 422 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: 1536 m above ground
0-6 km bulk shear: 79 kt
0-1 km storm-relative helicity: 59 m²/s²
0-3 km storm-relative helicity: 34 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 wind chill advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Green Bay, WI wrote its last area forecast discussion before this wind chill advisory went out at Feb 12, 2:39 PM CST, 19 minutes earlier.

Area forecast discussion, Feb 12, 2:39 PM CST, 19 minutes before

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Hazardous weather outlook, Feb 12, 7:52 AM CST, 7 hours 6 minutes before

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In the hours before

Special weather statement, Feb 12, 10:10 AM CST, 4 hours 48 minutes before

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<body>
  <main class="wrap">
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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.
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        Please try again in a few minutes.
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The office that day

Everything else NWS Green Bay, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 12, 2:58 PM CST	Winter Weather Advisory	GRB	Brown, Calumet, Door, Kewaunee, Manitowoc, Outagamie and 1 more	15 hr

Nearby

Wind Chill Advisories in Wisconsin, 2020 Every wind chill advisory in 2020

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.