Alert archive / Wisconsin / Severe Thunderstorm Warnings in 1991

Severe Thunderstorm Warning 12, NWS Milwaukee, WI

May 27, 1991Portage County, Wisconsin

NWS Milwaukee, WI issued this severe thunderstorm warning at May 27, 1991, 6:29 PM CDT for Portage County, Wisconsin. It was in force for 46 min.

The area

The counties it named.

The facts

Issued
May 27, 1991, 6:29 PM CDT (23:29 UTC)
Expired
May 27, 1991, 7:15 PM CDT
In force
46 min
Issued by
NWS Milwaukee, WI
Area
Whole counties

County Portage County, WI

The nearest sounding before it

Minneapolis, MN (KSTC), launched 12:00Z, 11.5 hours before the alert went out and 327 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-pSkew-T log-p diagram, Minneapolis, MN at 12:00Z on 1991-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Minneapolis, MN at 12:00Z on 1991-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 89 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
1238 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
89 m²/s²
0-3 km storm-relative helicity
95 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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.

In the hours before

Special weather statement, May 27, 3:44 PM CDT, 2 hours 45 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, May 27, 4:32 PM CDT, 1 hour 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, May 27, 4:33 PM CDT, 1 hour 56 minutes before
WIZ011-272230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MADISON WI
425 PM CDT MON MAY 27 1991

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR JUNEAU AND ADAMS COUNTY
UNTIL 900 PM CDT TONIGHT...

AT 425 PM CDT RADAR SHOWED NO PRECIPITATION IN THE IMMEDIATE VICINITY
OF JUNEAU AND ADAMS COUNTY.  THIS WATCH WILL CONTINUE IN EFFECT UNTIL
900 PM THIS EVENING.

PIERCE
Special weather statement, May 27, 5:37 PM CDT, 52 minutes before
WIZ011-272340-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MADISON WI
535 PM CDT MON MAY 27 1991

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR JUNEAU AND ADAMS COUNTY
UNTIL 900 PM CDT TONIGHT...

AT 530 PM CDT RADAR SHOWED THUNDERSTORMS WITH VERY HEAVY RAIN AND HAIL
NORTHWEST OF JUNEAU AND ADAMS COUNTY MOVING TO THE EAST AT 25 MPH.

THE SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR JUNEAU AND ADAMS
COUNTY UNTIL 900 PM THIS EVENING.

PIERCE
Special weather statement, May 27, 6:04 PM CDT, 25 minutes before
WIZ007-280000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
600 PM CDT MON MAY 27 1991

...VERY STRONG THUNDERSTORMS IN NORTH CENTRAL WISCONSIN...

AT 600 PM...WEATHER RADAR INDICATED STRONG THUNDERSTORMS IN WESTERN
MARATHON AND NORTHWEST WOOD COUNTIES. THE STORMS WERE NEAR SPENCER IN
MARATHON COUNTIES...35 MILES WEST SOUTHWEST OF WAUSAU TO MARSHFIELD IN
NORTHWEST WOOD COUNTY...26 MILES NORTHWEST OF WISCONSIN RAPIDS. THE
STORMS WERE MOVING EAST AT AROUND 30 MPH AND WILL BE EFFECTING THE
TOWNS OF HEWITT IN NORTHERN WOOD...AND STRATFORD IN CENTRAL MARATHON
COUNTY BY 630 PM.

NO SEVERE WEATHER HAS BEEN REPORTED WITH THESE STORMS. HOWEVER...THESE
STORMS ARE CAPABLE OF PRODUCING HEAVY RAINS...STRONG WINDS...AND HAIL.

PERSONS IN MARATHON AND WOOD COUNTIES ARE ADVISED TO STAY ALERT FOR
THESE STORMS AND BE PREPARED TO SEEK SAFE SHELTER SHOULD THREATNING
WEATHER APPROACH.

KOCHIS
Special weather statement, May 27, 6:24 PM CDT, 5 minutes before
WIZ007-280030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
623 PM CDT MON MAY 27 1991

...VERY STRONG THUNDERSTORMS ENTERING PORTAGE COUNTY...

AT 623 PM...WEATHER RADAR INDICATED VERY STRONG THUNDERSTORMS IN EASTERN
WOOD AND SOUTHERN MARATHON COUNTIES...ENTERING NORTHWEST PORTAGE COUNTY.
THE STORMS WERE FROM NEAR DANCY IN SOUTHERN MARATHON COUNTY...20 MILES
SOUTH SOUTHWEST OF WAUSAU TO NEAR MILLADORE IN EASTERN WOOD COUNTY...
14 MILES NORTH OF WISCONSIN RAPIDS TO NEAR JUNCTION CITY IN NORTHWEST
PORTAGE COUNTY...11 MILES NORTHWEST OF STEVENS POINT. THESE STORMS WERE
MOVING EAST AT AROUND 30 MPH...AND WILL BE NEAR STEVENS POINT BY 645 PM.

NO SEVERE WEATHER HAS BEEN REPORTED WITH THESE STORMS. HOWEVER...THESE
STORMS ARE CAPABLE OF PRODUCING HEAVY RAINS...STRONG WINDS...AND LARGE
HAIL.

PERSONS IN SOUTHERN MARATHON...EASTERN WOOD...AND NORTHERN PORTAGE
COUNTIES ARE ADVISED TO STAY ALERT FOR THESE STORMS A+ND BE PREPARED TO
SEEK SHELTER SHOULD THREATENING WEATHER APPROACH.

KOCHIS

The office that day

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

IssuedProductOfficeCountiesLasted
May 27, 6:07 PM CDTSevere Thunderstorm WarningMKXMarathon, Wood53 min

Nearby

Severe Thunderstorm Warnings in Wisconsin, 1991Every severe thunderstorm warning in 1991

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.