Alert archive / Wisconsin / Areal Flood Advisories in 2021

Areal Flood Advisory 12, NWS Green Bay, WI

July 14, 20216 counties in Wisconsin

NWS Green Bay, WI issued this areal flood advisory at Jul 14, 2021, 10:48 PM CDT for 6 counties in Wisconsin. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued: Jul 14, 2021, 10:48 PM CDT (03:48 UTC)
Expired: Jul 15, 2021, 4:45 AM CDT
In force: 6 hr
Issued by: NWS Green Bay, WI
Area: Storm-based polygon

Counties Brown County, WI, Calumet County, WI, Kewaunee County, WI, Manitowoc County, WI, Outagamie County, WI, Winnebago County, WI

The radar

The Green Bay radar (KGRB), 26 km from the middle of the area, began a volume at 03:47 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

Green Bay/Straub, WI (KGRB), launched 00:00Z, 3.8 hours before the alert went out and 23 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: 3 J/kg
Mixed-layer CIN: -195 J/kg
Mixed-layer LCL: 1171 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 83 m²/s²
0-3 km storm-relative helicity: 207 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 areal flood 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 areal flood advisory went out at Jul 14, 6:29 PM CDT, 4 hours 19 minutes earlier.

Area forecast discussion, Jul 14, 6:29 PM CDT, 4 hours 19 minutes before

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Hazardous weather outlook, Jul 14, 10:29 PM CDT, 19 minutes before

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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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In the hours before

Local storm report, Jul 14, 6:52 PM CDT, 3 hours 56 minutes before

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      <p id="message2">
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Special weather statement, Jul 14, 7:49 PM CDT, 2 hours 59 minutes before

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      <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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Special weather statement, Jul 14, 8:44 PM CDT, 2 hours 4 minutes before

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      <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.
      </p>
      <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, Jul 14, 9:35 PM CDT, 1 hour 13 minutes before

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      <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.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
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Special weather statement, Jul 14, 10:06 PM CDT, 42 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.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Local storm report, Jul 14, 10:12 PM CDT, 36 minutes before

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<head>
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  <title>Service Notice</title>
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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.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 14, 7:49 PM CDT	Special Weather Statement	GRB	Brown, Calumet, Kewaunee, Manitowoc, Outagamie, Portage and 4 more	41 min
Jul 14, 8:44 PM CDT	Special Weather Statement	GRB	Brown, Calumet, Manitowoc, Outagamie, Waupaca, Waushara and 1 more	31 min
Jul 14, 10:06 PM CDT	Special Weather Statement	GRB	Brown, Calumet, Door, Kewaunee, Manitowoc, Outagamie and 2 more	54 min
Jul 14, 11:31 PM CDT	Flash Flood Warning	GRB	Calumet, Manitowoc, Winnebago	3 hr
Jul 15, 2:00 AM CDT	Flash Flood Warning	GRB	Calumet, Manitowoc, Winnebago	4 hr
Jul 15, 5:22 AM CDT	River Flood Warning	GRB	Manitowoc	11 hr
Jul 15, 5:56 AM CDT	Areal Flood Advisory	GRB	Calumet, Manitowoc, Winnebago	3 hr
Jul 15, 3:13 PM CDT	River Flood Warning	GRB	Brown	7 hr

Nearby

Areal Flood Advisories in Wisconsin, 2021 Every areal flood advisory in 2021

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.