Alert archive / Wisconsin / Special Weather Statements in 2020

Special Weather Statement, NWS Twin Cities, MN

May 26, 20206 counties in Wisconsin

NWS Twin Cities, MN issued this special weather statement at May 26, 2020, 1:14 PM CDT for 6 counties in Wisconsin. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 26, 2020, 1:14 PM CDT (18:14 UTC)
Expired: May 26, 2020, 3:15 PM CDT
In force: 2 hr
Issued by: NWS Twin Cities, MN

Counties Barron County, WI, Chippewa County, WI, Dunn County, WI, Eau Claire County, WI, Pepin County, WI, Rusk County, WI

The radar

The La Crosse radar (KARX), 156 km from the middle of the area, began a volume at 18:15 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, 6.2 hours before the alert went out and 196 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: 690 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 135 m²/s²
0-3 km storm-relative helicity: 121 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

<!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>

What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Twin Cities, MN wrote its last area forecast discussion before this special weather statement went out at May 26, 12:16 PM CDT, 58 minutes earlier.

Area forecast discussion, May 26, 12:16 PM CDT, 58 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, May 26, 8:54 AM CDT, 4 hours 20 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>

In the hours before

Special weather statement, May 26, 1:14 PM CDT, 0 minutes before

Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
114 PM CDT Tue May 26 2020

WIZ015-016-025>028-262015-
Chippewa-Barron-Dunn-Eau Claire-Rusk-Pepin-
114 PM CDT Tue May 26 2020

...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT NORTHEASTERN PEPIN...
RUSK...DUNN...CHIPPEWA...EAU CLAIRE AND BARRON COUNTIES...

At 113 PM CDT, an area of scattered strong thunderstorms was located
approximately 30 miles south of Eau Claire, moving north at 35 mph.

Winds in excess of 30 mph and half inch hail are possible with this
activity.

Locations impacted include...
Eau Claire, Menomonie, Rice Lake, Ladysmith, Chippewa Falls, Altoona,
Lake Hallie, Stanley, Bloomer, Barron, Lake Wissota and Chetek.

This includes the following highways...
 Interstate 94 in Wisconsin between mile markers 41 and 86.
 U.S. Highway 53 between mile markers 86 and 152.

Frequent cloud to ground lightning is expected with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 4538 9079 4537 9092 4460 9093 4460 9193
      4564 9203 4564 9078
TIME...MOT...LOC 1813Z 184DEG 30KT 4436 9115

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 26, 3:56 PM CDT	Special Weather Statement	MPX	Freeborn	49 min
May 26, 4:54 PM CDT	Special Weather Statement	MPX	Freeborn, Steele	51 min
May 26, 4:56 PM CDT	Flash Flood Watch	MPX	Anoka, Blue Earth, Carver, Chisago, Dakota, Faribault and 12 more	11 hr
May 26, 4:58 PM CDT	Special Weather Statement	MPX	Faribault	47 min
May 26, 5:15 PM CDT	Tornado Warning	MPX	Faribault, Freeborn, Waseca	16 min
May 26, 5:34 PM CDT	Special Weather Statement	MPX	Le Sueur, Waseca	56 min
May 26, 5:37 PM CDT	Special Weather Statement	MPX	Washington	53 min
May 26, 5:53 PM CDT	Special Weather Statement	MPX	Goodhue	37 min
May 26, 6:45 PM CDT	Special Weather Statement	MPX	Freeborn	45 min
May 26, 4:08 PM CDT	Special Weather Statement	MPX	Polk	82 min
May 26, 4:26 PM CDT	Special Weather Statement	MPX	Barron	79 min
May 26, 4:33 PM CDT	Severe Thunderstorm Warning	MPX	Barron, Dunn	57 min
May 26, 6:22 PM CDT	Special Weather Statement	MPX	Pepin, Pierce	38 min

Nearby

Special Weather Statements in Wisconsin, 2020 Every special weather statement 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.