Alert archive / Wisconsin / Flood Watches in 2026

Flood Watch 2, NWS Green Bay, WI

April 13, 202618 counties in Wisconsin

NWS Green Bay, WI issued this flood watch at Apr 13, 2026, 2:04 AM CDT for 18 counties in Wisconsin. It took effect at Apr 13, 2026, 4:00 PM CDT. It was in force for 35 hr.

The area

The counties it named.

The facts

Issued
Apr 13, 2026, 2:04 AM CDT (07:04 UTC)
In effect from
Apr 13, 2026, 4:00 PM CDT
Expired
Apr 15, 2026, 2:38 AM CDT
In force
35 hr
Issued by
NWS Green Bay, WI
Flood severity
None

Counties Brown County, WI, Calumet County, WI, Door 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, Outagamie County, WI, Portage County, WI, Shawano County, WI, Waupaca County, WI, Waushara County, WI, Winnebago County, WI, Wood County, WI

The radar

The Green Bay radar (KGRB), 47 km from the middle of the area, began a volume at 07:04 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.

What forecasters said that day

The local office's own words before this flood watch 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 flood watch went out at Apr 12, 11:25 PM CDT, 2 hours 39 minutes earlier.

Area forecast discussion, Apr 12, 11:25 PM CDT, 2 hours 39 minutes before
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Hazardous weather outlook, Apr 12, 5:33 PM CDT, 8 hours 31 minutes before
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<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <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.

IssuedProductOfficeCountiesLasted
Apr 12, 11:33 PM CDTRiver Flood WarningGRBShawano, Waupaca5 days
Apr 13, 7:30 AM CDTRiver Flood WarningGRBPortage4 days
Apr 13, 7:31 AM CDTRiver Flood WarningGRBPortage3 days
Apr 13, 10:53 AM CDTRiver Flood WarningGRBLincoln, Marathon11 hr
Apr 13, 3:49 PM CDTSmall Craft AdvisoryGRB7 hr
Apr 13, 4:10 PM CDTRiver Flood WarningGRBFlorence, Forest8 days
Apr 13, 4:16 PM CDTSpecial Weather StatementGRBPortage29 min
Apr 13, 4:22 PM CDTSevere Thunderstorm WarningGRBMarathon, Portage53 min
Apr 13, 4:43 PM CDTSevere Thunderstorm WarningGRBShawano, Waupaca62 min
Apr 13, 4:44 PM CDTRiver Flood WarningGRBMarinette4 days
Apr 13, 4:46 PM CDTSevere Thunderstorm WarningGRBMarathon59 min
Apr 13, 5:03 PM CDTSevere Thunderstorm WarningGRBPortage, Wood57 min
Apr 13, 5:07 PM CDTSpecial Weather StatementGRBMenominee23 min
Apr 13, 5:22 PM CDTFlash Flood WarningGRBMarathon, Portage, Wood5 hr
Apr 13, 5:23 PM CDTSpecial Weather StatementGRBMenominee37 min
Apr 13, 5:41 PM CDTSevere Thunderstorm WarningGRBMarathon, Wood48 min
Apr 13, 5:42 PM CDTSevere Thunderstorm WarningGRBLanglade, Marathon, Shawano48 min
Apr 13, 5:45 PM CDTMarine Dense Fog AdvisoryGRB67 hr
Apr 13, 5:47 PM CDTAreal Flood AdvisoryGRBLanglade, Menominee, Oconto, Shawano, Waupaca3 hr
Apr 13, 5:55 PM CDTAreal Flood AdvisoryGRBMarathon, Portage3 hr
Apr 13, 5:59 PM CDTSpecial Weather StatementGRBMarinette46 min
Apr 13, 6:19 PM CDTSevere Thunderstorm WarningGRBPortage, Waupaca41 min
Apr 13, 6:37 PM CDTSpecial Weather StatementGRBBrown, Outagamie38 min
Apr 13, 6:39 PM CDTSpecial Weather StatementGRBLincoln36 min
Apr 13, 6:44 PM CDTSevere Thunderstorm WarningGRBLincoln, Marathon35 min
Apr 13, 6:49 PM CDTSevere Thunderstorm WarningGRBOutagamie, Shawano, Waupaca41 min
Apr 13, 6:55 PM CDTSevere Thunderstorm WarningGRBMarathon29 min

Nearby

Flood Watches in Wisconsin, 2026Every flood watch 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; radar from the NEXRAD Level II archive.