Alert archive / South Dakota / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 16, NWS Aberdeen, SD

May 23, 1994Grant County, South Dakota

NWS Aberdeen, SD issued this severe thunderstorm warning at May 23, 1994, 11:46 PM CDT for Grant County, South Dakota. It was in force for 32 min.

The area

The counties it named.

The facts

Issued: May 23, 1994, 11:46 PM CDT (04:46 UTC)
Expired: May 24, 1994, 12:18 AM CDT
In force: 32 min
Issued by: NWS Aberdeen, SD
Area: Whole counties

County Grant County, SD

The nearest sounding before it

Aberdeen, SD (KHON), launched 00:00Z, 4.8 hours before the alert went out and 132 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: 1212 J/kg
Mixed-layer CIN: -102 J/kg
Mixed-layer LCL: 2117 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 45 m²/s²
0-3 km storm-relative helicity: 134 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.1

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

Local storm report, May 23, 9:09 PM CDT, 2 hours 37 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
909 PM CDT MON MAY 23 1994

STORM DATA FOR MAY 23 1994

 TIME            COUNTY..LOCATION           CHARACTER OF STORM..DAMAGE
.......................................................................

 842 PM CDT     ROBERTS...5 MI. SE           GOLFBALL HAIL 5 TO 6 IN.
                   OF WILMOT                 DEEP...1.2" RAIN..HIGH WINDS
                                             BY SPOTTER.

OLSON
NNNN

Local storm report, May 23, 9:10 PM CDT, 2 hours 36 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE ABERDEEN SD
909 PM CDT MON MAY 23 1994

STORM DATA FOR MAY 23 1994

 TIME            COUNTY..LOCATION           CHARACTER OF STORM..DAMAGE
.......................................................................

 842 PM CDT     ROBERTS...5 MI. SE           GOLFBALL HAIL 5 TO 6 IN.
                   OF WILMOT                 DEEP...1.2" RAIN..HIGH WINDS
                                             BY SPOTTER.&

OLSON
NNNN

Special weather statement, May 23, 9:35 PM CDT, 2 hours 11 minutes before

SDZ003>011-015>018-240400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
935 PM CDT MON MAY 23 1994

...A SEVERE THUNDERSTORM WATCH IN EFFECT FOR PORTIONS OF NORTHEAST SOUTH
   DAKOTA UNTIL 11 PM CDT...

SEVERE THUNDERSTORMS EARLIER THIS EVENING ACROSS MARSHALL AND ROBERTS
COUNTIES OF NORTHEAST SOUTH DAKOTA HAVE DIMINISHED. THESE THUNDERSTORMS
PRODUCED GOLFBALL SIZE HAIL AND UPROOTED TREES.

NO SEVERE WEATHER HAS BEEN INDICATED IN NORTHEAST SOUTH DAKOTA AS OF
930 PM CDT...BUT THUNDERSTORMS WERE BEGINNING TO MOVE INTO THE NORTHERN
PORTIONS OF BROWN...MARSHALL AND DAY COUNTIES. MOVEMENT OF THESE SHOWERS
AND THUNDERSTORMS HAVE BEEN TO THE SOUTHEAST AT 20 MPH.

AT 931 PM CDT THE STRONGEST STORM WAS LOCATED IN NORTHEAST BROWN COUNTY...
JUST WEST OF HECLA...OR 30 MILES NORTHEAST OF ABERDEEN. SMALL HAIL...
GUSTY WINDS...BRIEF HEAVY RAIN AND DEADLY LIGHTNING ARE POSSIBLE WITH
THIS THUNDERSTORM.

REMEMBER...A WATCH MEANS CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT
OF THUNDERSTORMS WHICH INCLUDES SEVERE THUNDERSTORMS WITH DAMAGING
WINDS...DEADLY LIGHTNING...AND LARGE HAIL.  BE PREPARED TO TAKE ACTION
TO PROTECT LIFE AND PROPERTY AS THESE STORMS DEVELOP AND APPROACH YOUR
AREA.

BUCKLEW

Special weather statement, May 23, 9:35 PM CDT, 2 hours 11 minutes before

SDZ003>011-015>018-240400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABERDEEN SD
935 PM CDT MON MAY 23 1994

...A SEVERE THUNDERSTORM WATCH IN EFFECT FOR PORTIONS OF NORTHEAST SOUTH
   DAKOTA UNTIL 11 PM CDT...

SEVERE THUNDERSTORMS EARLIER THIS EVENING ACROSS MARSHALL AND ROBERTS
COUNTIES OF NORTHEAST SOUTH DAKOTA HAVE DIMINISHED. THESE THUNDERSTORMS
PRODUCED GOLFBALL SIZE HAIL AND UPROOTED TREES.

NO SEVERE WEATHER HAS BEEN INDICATED IN NORTHEAST SOUTH DAKOTA AS OF
930 PM CDT...BUT THUNDERSTORMS WERE BEGINNING TO MOVE INTO THE NORTHERN
PORTIONS OF BROWN...MARSHALL AND DAY COUNTIES. MOVEMENT OF THESE SHOWERS
AND THUNDERSTORMS HAVE BEEN TO THE SOUTHEAST AT 20 MPH.

AT 931 PM CDT THE STRONGEST STORM WAS LOCATED IN NORTHEAST BROWN COUNTY...
JUST WEST OF HECLA...OR 30 MILES NORTHEAST OF ABERDEEN. SMALL HAIL...
GUSTY WINDS...BRIEF HEAVY RAIN AND DEADLY LIGHTNING ARE POSSIBLE WITH
THIS THUNDERSTORM.

REMEMBER...A WATCH MEANS CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT
OF THUNDERSTORMS WHICH INCLUDES SEVERE THUNDERSTORMS WITH DAMAGING
WINDS...DEADLY LIGHTNING...AND LARGE HAIL.  BE PREPARED TO TAKE ACTION
TO PROTECT LIFE AND PROPERTY AS THESE STORMS DEVELOP AND APPROACH YOUR
AREA.

BUCKLEW

Local storm report, May 23, 11:25 PM CDT, 21 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>

Local storm report, May 23, 11:28 PM CDT, 18 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 Aberdeen, SD issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 23, 7:05 PM CDT	Severe Thunderstorm Warning	ABR	Roberts	55 min
May 23, 7:57 PM CDT	Severe Thunderstorm Warning	ABR	Roberts	63 min
May 23, 8:30 PM CDT	Severe Thunderstorm Warning	ABR	Day, Marshall	24 min
May 23, 9:56 PM CDT	Severe Thunderstorm Warning	ABR	Brown	34 min
May 23, 10:18 PM CDT	Severe Thunderstorm Warning	ABR	Marshall	57 min
May 23, 10:58 PM CDT	Severe Thunderstorm Warning	ABR	Roberts	47 min
May 23, 10:58 PM CDT	Severe Thunderstorm Warning	ABR	Day	30 min
May 23, 11:57 PM CDT	Severe Thunderstorm Warning	ABR	Day	48 min

Nearby

Severe Thunderstorm Warnings in South Dakota, 1994 Every severe thunderstorm warning in 1994

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.