Alert archive / Wisconsin / Heat Advisories in 2018

Heat Advisory 1, NWS La Crosse, WI

June 15, 201811 counties in Wisconsin; 8 counties in Iowa; 7 counties in Minnesota

NWS La Crosse, WI issued this heat advisory at Jun 15, 2018, 2:10 PM CDT for 11 counties in Wisconsin; 8 counties in Iowa; 7 counties in Minnesota. It took effect at Jun 16, 2018, 1:00 PM CDT. It was in force for 30 hr.

The area

The counties it named.

The facts

Issued: Jun 15, 2018, 2:10 PM CDT (19:10 UTC)
In effect from: Jun 16, 2018, 1:00 PM CDT
Expired: Jun 17, 2018, 7:00 PM CDT
In force: 30 hr
Issued by: NWS La Crosse, WI

All 26 counties

Allamakee County, IA, Chickasaw County, IA, Clayton County, IA, Fayette County, IA, Floyd County, IA, Howard County, IA, Mitchell County, IA, Winneshiek County, IA, Dodge County, MN, Fillmore County, MN, Houston County, MN, Mower County, MN, Olmsted County, MN, Wabasha County, MN, Winona County, MN, Adams County, WI, Buffalo County, WI, Crawford County, WI, Grant County, WI, Jackson County, WI, Juneau County, WI, La Crosse County, WI, Monroe County, WI, Richland County, WI, Trempealeau County, WI, Vernon County, WI

The radar

The La Crosse radar (KARX), 37 km from the middle of the area, began a volume at 19:12 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, 7.2 hours before the alert went out and 212 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: 957 J/kg
Mixed-layer CIN: -509 J/kg
Mixed-layer LCL: 1427 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 290 m²/s²
0-3 km storm-relative helicity: 273 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 heat advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS La Crosse, WI wrote its last area forecast discussion before this heat advisory went out at Jun 15, 12:37 PM CDT, 1 hour 33 minutes earlier.

Area forecast discussion, Jun 15, 12:37 PM CDT, 1 hour 33 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<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>

Hazardous weather outlook, Jun 15, 5:51 AM CDT, 8 hours 19 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<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 La Crosse, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 15, 3:28 AM CDT	Special Weather Statement	ARX	Wood	17 min
Jun 15, 3:39 AM CDT	Severe Thunderstorm Warning	ARX	Juneau	51 min
Jun 15, 4:20 AM CDT	Special Weather Statement	ARX	Clark, Taylor	25 min
Jun 15, 5:38 AM CDT	Severe Thunderstorm Warning	ARX	Clark	52 min
Jun 15, 5:54 AM CDT	Areal Flood Advisory	ARX	Adams, Juneau	104 min
Jun 15, 5:48 PM CDT	Severe Thunderstorm Warning	ARX	Trempealeau	42 min
Jun 15, 6:09 PM CDT	Severe Thunderstorm Warning	ARX	Jackson, Monroe	51 min
Jun 15, 6:54 PM CDT	Special Weather Statement	ARX	Jackson	81 min

Nearby

Heat Advisories in Wisconsin, 2018 Heat Advisories in Iowa, 2018 Heat Advisories in Minnesota, 2018 Every heat advisory in 2018

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.