Alert archive / Wisconsin / Winter Storm Warnings in 2026

Winter Storm Warning 5, NWS Green Bay, WI

March 13, 202622 counties in Wisconsin

NWS Green Bay, WI issued this winter storm warning at Mar 13, 2026, 12:59 PM CDT for 22 counties in Wisconsin. It took effect at Mar 14, 2026, 9:00 PM CDT. It was in force for 17 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 13, 2026, 12:59 PM CDT (17:59 UTC)
In effect from: Mar 14, 2026, 9:00 PM CDT
Expired: Mar 15, 2026, 1:32 PM CDT
In force: 17 hr
Issued by: NWS Green Bay, WI

All 22 counties

Brown County, WI, Calumet County, WI, Door County, WI, Florence County, WI, Forest County, WI, Kewaunee County, WI, Langlade County, WI, Lincoln County, WI, Manitowoc County, WI, Marathon County, WI, Marinette County, WI, Menominee County, WI, Oconto County, WI, Oneida County, WI, Outagamie County, WI, Portage County, WI, Shawano County, WI, Vilas County, WI, Waupaca County, WI, Waushara County, WI, Winnebago County, WI, Wood County, WI

The radar

The Green Bay radar (KGRB), 63 km from the middle of the area, began a volume at 18:01 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, 6.0 hours before the alert went out and 384 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: 971 m above ground
0-6 km bulk shear: 66 kt
0-1 km storm-relative helicity: 171 m²/s²
0-3 km storm-relative helicity: 208 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 Green Bay, WI wrote its last area forecast discussion before this winter storm warning went out at Mar 13, 12:32 PM CDT, 27 minutes earlier.

Area forecast discussion, Mar 13, 12:32 PM CDT, 27 minutes before

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Hazardous weather outlook, Mar 13, 3:07 AM CDT, 9 hours 52 minutes before

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In the hours before

Local storm report, Mar 13, 8:42 AM CDT, 4 hours 17 minutes before

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Local storm report, Mar 13, 8:54 AM CDT, 4 hours 5 minutes before

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Local storm report, Mar 13, 9:04 AM CDT, 3 hours 55 minutes before

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Local storm report, Mar 13, 9:21 AM CDT, 3 hours 38 minutes before

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Local storm report, Mar 13, 10:10 AM CDT, 2 hours 49 minutes before

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      <p id="message1">
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      <p id="message2">
        Please try again in a few minutes.
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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Local storm report, Mar 13, 10:14 AM CDT, 2 hours 45 minutes before

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  <main class="wrap">
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      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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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
Mar 13, 10:37 AM CDT	Small Craft Advisory	GRB		13 hr

Nearby

Winter Storm Warnings in Wisconsin, 2026 Every winter storm warning in 2026

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.