Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1999

Severe Thunderstorm Warning 19, NWS Green Bay, WI

June 6, 1999Outagamie County, Wisconsin

NWS Green Bay, WI issued this severe thunderstorm warning at Jun 6, 1999, 4:57 PM CDT for Outagamie County, Wisconsin. It was in force for 63 min. 5 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jun 6, 1999, 4:57 PM CDT (21:57 UTC)
Expired: Jun 6, 1999, 6:00 PM CDT
In force: 63 min
Issued by: NWS Green Bay, WI
Area: Whole counties

County Outagamie County, WI

The radar

The Green Bay radar (KGRB), 30 km from the middle of the area, began a volume at 21:59 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 was reported inside it

Time	Report	Where
Jun 6, 5:13 PM CDT	Thunderstorm Wind 52	Hortonville, WI
Jun 6, 5:20 PM CDT	Thunderstorm Wind 52	Appleton, WI
Jun 6, 5:22 PM CDT	Thunderstorm Wind 54	Darboy, WI
Jun 6, 5:25 PM CDT	Thunderstorm Wind 57	Appleton, WI
Jun 6, 5:35 PM CDT	Thunderstorm Wind 54	Darboy, WI

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 6, 2:30 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 10.0 hours before the alert went out and 30 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: 1488 J/kg
Mixed-layer CIN: -58 J/kg
Mixed-layer LCL: 803 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 206 m²/s²
0-3 km storm-relative helicity: 240 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.9

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jun 6, 12:30 PM CDT, 4 hours 27 minutes earlier.

Area forecast discussion, Jun 6, 12:30 PM CDT, 4 hours 27 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, Jun 6, 12:00 PM CDT, 4 hours 57 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>

Special weather statement, Jun 6, 12:00 PM CDT, 4 hours 57 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 Green Bay, WI issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 5, 7:00 PM CDT	Tornado Warning	GRB	Oneida	45 min
Jun 5, 7:13 PM CDT	Severe Thunderstorm Warning	GRB	Lincoln	47 min
Jun 5, 7:34 PM CDT	Severe Thunderstorm Warning	GRB	Forest, Vilas	61 min
Jun 5, 7:40 PM CDT	Severe Thunderstorm Warning	GRB	Oneida	50 min
Jun 5, 8:02 PM CDT	Severe Thunderstorm Warning	GRB	Langlade, Lincoln	63 min
Jun 6, 12:24 AM CDT	Severe Thunderstorm Warning	GRB	Marathon, Wood	61 min
Jun 6, 12:41 AM CDT	Severe Thunderstorm Warning	GRB	Portage	54 min
Jun 6, 1:25 AM CDT	Severe Thunderstorm Warning	GRB	Langlade, Menominee, Shawano	45 min
Jun 6, 2:05 AM CDT	Severe Thunderstorm Warning	GRB	Marinette, Oconto	55 min
Jun 6, 3:03 AM CDT	Severe Thunderstorm Warning	GRB	Door	42 min
Jun 6, 3:53 PM CDT	Severe Thunderstorm Warning	GRB	Wood	47 min
Jun 6, 4:16 PM CDT	Severe Thunderstorm Warning	GRB	Marathon, Portage	64 min
Jun 6, 4:51 PM CDT	Severe Thunderstorm Warning	GRB	Manitowoc	49 min
Jun 6, 4:57 PM CDT	Severe Thunderstorm Warning	GRB	Waupaca, Waushara, Winnebago	63 min
Jun 6, 5:03 PM CDT	Severe Thunderstorm Warning	GRB	Langlade, Menominee, Shawano	62 min
Jun 6, 5:06 PM CDT	Severe Thunderstorm Warning	GRB	Calumet	64 min
Jun 6, 5:29 PM CDT	Severe Thunderstorm Warning	GRB	Brown, Kewaunee	61 min
Jun 6, 5:38 PM CDT	Severe Thunderstorm Warning	GRB	Manitowoc	47 min
Jun 6, 5:57 PM CDT	Severe Thunderstorm Warning	GRB	Oconto	63 min
Jun 6, 6:09 PM CDT	Severe Thunderstorm Warning	GRB	Door	66 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1999 Every severe thunderstorm warning in 1999

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.