Alert archive / Minnesota / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 78, NWS Grand Forks, ND

August 27, 1994Koochiching County, Minnesota

NWS Grand Forks, ND issued this severe thunderstorm warning at Aug 27, 1994, 9:55 AM CDT for Koochiching County, Minnesota. It was in force for 65 min.

The area

The counties it named.

The facts

Issued
Aug 27, 1994, 9:55 AM CDT (14:55 UTC)
Expired
Aug 27, 1994, 11:00 AM CDT
In force
65 min
Issued by
NWS Grand Forks, ND
Area
Whole counties

County Koochiching County, MN

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 2.9 hours before the alert went out and 51 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, International Fa, MN at 12:00Z on 1994-08-27Temperature 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, International Fa, MN at 12:00Z on 1994-08-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 162 square meters per square second.1939587897Sfc1 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
1524 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
162 m²/s²
0-3 km storm-relative helicity
471 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

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 27, 7:50 AM CDT, 2 hours 5 minutes before
NDZ007-008-016-026>030-038-039-048-049-051>053-MNZ001>004-
007>009-013>017-022>024-027>032-039>041-047-271330-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE FARGO ND
750 AM CDT SAT AUG 27 1994

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR NORTHERN MINNESOTA UNTIL
   UNTIL 1 PM CDT...

AT 725 AM CDT...AN AREA OF THUNDERSTORMS...SOME STRONG...WERE MOVING
ACROSS BELTRAMI COUNTY OF NORTHWESTERN MINNESOTA...FROM 40 MILES
NORTHWEST TO 10 MILES EAST OF BEMIDJI MINNESOTA.

THESE THUNDERSTORMS WERE MOVING EAST AT 40 MILES AN HOUR AND SHOULD
MOVE ACROSS THE RED LAKE AREA AND NEAR THE CITIES OF RED LAKE AND
BLACKDUCK BY 830 AM CDT.

THESE THUNDERSTORMS MAY PRODUCE STRONG WIND...VERY HEAVY RAIN...HAIL...
AND DEADLY LIGHTNING.  PEOPLE IN THE PATH OF THESE STORMS SHOULD BE
PREPARED TO SEEK SHELTER IF THREATENING WEATHER APPROACHES.
Special weather statement, Aug 27, 7:51 AM CDT, 2 hours 4 minutes before
NDZ007-008-016-026>030-038-039-048-049-051>053-MNZ001>004-
007>009-013>017-022>024-027>032-039>041-047-271330-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE FARGO ND
750 AM CDT SAT AUG 27 1994

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR NORTHERN MINNESOTA UNTIL
   UNTIL 1 PM CDT...

AT 725 AM CDT...AN AREA OF THUNDERSTORMS...SOME STRONG...WERE MOVING
ACROSS BELTRAMI COUNTY OF NORTHWESTERN MINNESOTA...FROM 40 MILES
NORTHWEST TO 10 MILES EAST OF BEMIDJI MINNESOTA.

THESE THUNDERSTORMS WERE MOVING EAST AT 40 MILES AN HOUR AND SHOULD
MOVE ACROSS THE RED LAKE AREA AND NEAR THE CITIES OF RED LAKE AND
BLACKDUCK BY 830 AM CDT.

THESE THUNDERSTORMS MAY PRODUCE STRONG WIND...VERY HEAVY RAIN...HAIL...
AND DEADLY LIGHTNING.  PEOPLE IN THE PATH OF THESE STORMS SHOULD BE
PREPARED TO SEEK SHELTER IF THREATENING WEATHER APPROACHES.
Special weather statement, Aug 27, 8:45 AM CDT, 1 hour 10 minutes before
NDZ007-008-016-026>030-038-039-048-049-051>053-MNZ001>004-
007>009-013>017-022>024-027>032-039>041-047-271430-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE FARGO ND
845 AM CDT SAT AUG 27 1994

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR NORTHERN MINNESOTA UNTIL
   UNTIL 1 PM CDT...

AT 830 AM CDT...SCATTERED THUNDERSTORMS...ONE STRONG...CONTINUED TO
MOVE RAPIDLY ACROSS PORTIONS OF NORTH CENTRAL MINNESOTA. THE STRONGEST
STORM WAS 50 MILES NORTHEAST OF BEMIDJI NEAR NORTHHOME. GOLF BALL SIZED
HAIL WAS REPORTED FROM THIS STORM AT NORTHHOME. THESE STORMS WERE MOVING
EAST AT 40 TO 50 MILES AN HOUR.

ELSEWHERE...SCATTERED THUNDERSTORMS HAD DEVELOPED OVER PARTS OF
NORTHWEST MINNESOTA. THESE THUNDERSTORMS WERE FROM THE DETROIT LAKES
AREA EAST TO NEAR PERHAM.

ALTHOUGH THE STRONGEST STORMS WERE MOVING OUT OF THE REGION THE NEW
THUNDERSTORMS COULD POSE A THREAT TO PERSONS IN THE LAKES AREA OF
NORTHWEST MINNESOTA.

STAY TUNED TO YOUR FAVORITE FORM OF WEATHER INFORMATION FOR LATER
STATEMENTS.
VOELKER
Special weather statement, Aug 27, 8:50 AM CDT, 1 hour 5 minutes before
NDZ007-008-016-026>030-038-039-048-049-051>053-MNZ001>004-
007>009-013>017-022>024-027>032-039>041-047-271430-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE FARGO ND
845 AM CDT SAT AUG 27 1994

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR NORTHERN MINNESOTA UNTIL
   UNTIL 1 PM CDT...

AT 830 AM CDT...SCATTERED THUNDERSTORMS...ONE STRONG...CONTINUED TO
MOVE RAPIDLY ACROSS PORTIONS OF NORTH CENTRAL MINNESOTA. THE STRONGEST
STORM WAS 50 MILES NORTHEAST OF BEMIDJI NEAR NORTHHOME. GOLF BALL SIZED
HAIL WAS REPORTED FROM THIS STORM AT NORTHHOME. THESE STORMS WERE MOVING
EAST AT 40 TO 50 MILES AN HOUR.

ELSEWHERE...SCATTERED THUNDERSTORMS HAD DEVELOPED OVER PARTS OF
NORTHWEST MINNESOTA. THESE THUNDERSTORMS WERE FROM THE DETROIT LAKES
AREA EAST TO NEAR PERHAM.

ALTHOUGH THE STRONGEST STORMS WERE MOVING OUT OF THE REGION THE NEW
THUNDERSTORMS COULD POSE A THREAT TO PERSONS IN THE LAKES AREA OF
NORTHWEST MINNESOTA.

STAY TUNED TO YOUR FAVORITE FORM OF WEATHER INFORMATION FOR LATER
STATEMENTS.
VOELKER
Special weather statement, Aug 27, 9:35 AM CDT, 20 minutes before
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Special weather statement, Aug 27, 9:39 AM CDT, 16 minutes before
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</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.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

Everything else NWS Grand Forks, ND issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 27, 6:16 AM CDTSevere Thunderstorm WarningFGFMarshall59 min
Aug 27, 6:35 AM CDTSevere Thunderstorm WarningFGFBeltrami55 min
Aug 27, 8:29 AM CDTSevere Thunderstorm WarningFGFKoochiching55 min
Aug 27, 8:58 AM CDTTornado WarningFGFLake of the Woods, Roseau47 min
Aug 27, 4:10 AM CDTSevere Thunderstorm WarningFGFCavalier65 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.