Alert archive / Minnesota / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 73, NWS Grand Forks, ND

August 25, 1994Douglas County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Aug 25, 1994, 3:11 PM CDT for Douglas County, Minnesota. It was in force for 64 min.

The area

The counties it named.

The facts

Issued
Aug 25, 1994, 3:11 PM CDT (20:11 UTC)
Expired
Aug 25, 1994, 4:15 PM CDT
In force
64 min
Issued by
NWS Grand Forks, ND
Area
Whole counties

County Douglas County, MN

The nearest sounding before it

Minneapolis, MN (KSTC), launched 12:00Z, 8.2 hours before the alert went out and 188 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 1994-08-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1334 joules per kilogram.LCLLFCEL10008507005003002001001 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 1994-08-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 77 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
1334 J/kg
Mixed-layer CIN
-154 J/kg
Mixed-layer LCL
1348 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
77 m²/s²
0-3 km storm-relative helicity
134 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

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, Aug 25, 12:36 PM CDT, 2 hours 35 minutes before
NDZ007-008-016-026>030-038-039-048-049-051>053-MNZ001>004-
007>009-013>017-022>024-027>032-039>041-047-251835-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE FARGO ND
1240 PM CDT THU AUG 25 1994

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR SOUTHEAST NORTH DAKOTA...
   NORTHWEST AND WEST CENTRAL MINNESOTA UNTIL 5 PM CDT...

AT 1230 AM CDT...SCATTERED THUNDERSTORMS...SOME STRONG...CONTINUED OVER
PARTS OF EAST CENTRAL AND SOUTHEAST NORTH DAKTOA AND HAD MOVED INTO
PARTS OF NORTHWEST MINNESOTA.

STRONGEST STORMS WERE FROM 30 TO 50 MILES SOUTH/SOUTHWEST OF FARGO.
ANOTHER STRONG THUNDERSTORM WAS 55 MILES SOUTH OF VALLEY CITY ALONG
THE NORTH/SOUTH DAKOTA BORDER. ALL THESE STORMS WERE MOVING EAST AT
40 MILES AN HOUR AND WILL AFFECT THE ABERCROMBIE...WAHPETON/BRECKENRIDGE
...LIDGERWOOD AND HANKINSON AREAS BY 130 PM CDT.

THESE STORMS CONTAIN VERY HEAVY RAIN...DANGEROUS LIGHTNING AND SOME
SMALL HAIL. PERSONS IN THE PATH OF THESE STORMS SHOULD REMAIN ALERT
FOR RAPIDLY CHANGING WEATHER CONDITIONS AND BE PREPARED TO SEEK
SHELTER IF NECESSARY. BE SPECIALLY AWARE OF THE DANGEROUS LIGHTNING
ASSOCIATED WITH THESE STORMS.

STAY TUNED TO YOUR FAVORITE FORM OF WEATHER INFORMATION FOR LATER
STATEMENTS AND POSSIBLE WARNINGS.
VOELKER
Special weather statement, Aug 25, 12:40 PM CDT, 2 hours 31 minutes before
NDZ007-008-016-026>030-038-039-048-049-051>053-MNZ001>004-
007>009-013>017-022>024-027>032-039>041-047-251835-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE FARGO ND
1240 PM CDT THU AUG 25 1994

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR SOUTHEAST NORTH DAKOTA...
   NORTHWEST AND WEST CENTRAL MINNESOTA UNTIL 5 PM CDT...

AT 1230 AM CDT...SCATTERED THUNDERSTORMS...SOME STRONG...CONTINUED OVER
PARTS OF EAST CENTRAL AND SOUTHEAST NORTH DAKTOA AND HAD MOVED INTO
PARTS OF NORTHWEST MINNESOTA.

STRONGEST STORMS WERE FROM 30 TO 50 MILES SOUTH/SOUTHWEST OF FARGO.
ANOTHER STRONG THUNDERSTORM WAS 55 MILES SOUTH OF VALLEY CITY ALONG
THE NORTH/SOUTH DAKOTA BORDER. ALL THESE STORMS WERE MOVING EAST AT
40 MILES AN HOUR AND WILL AFFECT THE ABERCROMBIE...WAHPETON/BRECKENRIDGE
...LIDGERWOOD AND HANKINSON AREAS BY 130 PM CDT.

THESE STORMS CONTAIN VERY HEAVY RAIN...DANGEROUS LIGHTNING AND SOME
SMALL HAIL. PERSONS IN THE PATH OF THESE STORMS SHOULD REMAIN ALERT
FOR RAPIDLY CHANGING WEATHER CONDITIONS AND BE PREPARED TO SEEK
SHELTER IF NECESSARY. BE SPECIALLY AWARE OF THE DANGEROUS LIGHTNING
ASSOCIATED WITH THESE STORMS.

STAY TUNED TO YOUR FAVORITE FORM OF WEATHER INFORMATION FOR LATER
STATEMENTS AND POSSIBLE WARNINGS.
VOELKER
Local storm report, Aug 25, 1:07 PM CDT, 2 hours 4 minutes before
STORM REPORTS
NATIONAL WEATHER SERVICE FARGO ND
1305 PM CDT THU AUG 25 1994

TIME          EVENT
1050 AM CDT   ELLENDALE ND REPORTED PEA SIZE HAIL.

1200 N CDT    DICKEY COUNTY ND S. O. REPORTED PEA SIZE HAIL IN ELLENDALE.
              LIGHTNING HIT ELLENDALE ND WATERTOWER AND FED INTO CITY HALL
              NEXT DOOR. DAMAGED CITY HALL ELECTRICAL SYSTEM/EQUIPMENT THAT
              WAS NOT SURGE PROTECTED.  S. O. RADIO SYSTEM OTS.

100 PM CDT    WAHPETON WARNING POINT ND REPORTED MARBLE SIZE HAIL  IN
              WYNDMERE ND

BENNETT
Local storm report, Aug 25, 1:25 PM CDT, 1 hour 46 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, Aug 25, 2:09 PM CDT, 1 hour 2 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, Aug 25, 2:10 PM CDT, 1 hour 1 minute 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 Grand Forks, ND issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 25, 1:15 PM CDTSevere Thunderstorm WarningFGFWilkin60 min
Aug 25, 1:51 PM CDTSevere Thunderstorm WarningFGFTraverse69 min

Nearby

Severe Thunderstorm Warnings in Minnesota, 1994Every 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.