Alert archive / Minnesota / Tornado Warnings in 1993

Tornado Warning 8, NWS Grand Forks, ND

July 27, 1993Roseau County, Minnesota

NWS Grand Forks, ND issued this tornado warning at Jul 27, 1993, 5:45 PM CDT for Roseau County, Minnesota. It was in force for 60 min.

The area

The counties it named.

The facts

Issued: Jul 27, 1993, 5:45 PM CDT (22:45 UTC)
Expired: Jul 27, 1993, 6:45 PM CDT
In force: 60 min
Issued by: NWS Grand Forks, ND
Area: Whole counties

County Roseau County, MN

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 10.8 hours before the alert went out and 186 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: 3 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 540 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 45 m²/s²
0-3 km storm-relative helicity: 128 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KINL 272245
TORINL
MNC135-272345-
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE INTERNATIONAL FALLS MN
545 PM CDT TUE JUL 27 1993
 
THE NATIONAL WEATHER SERVICE IN INTERNATIONAL FALLS HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  645 PM CDT
FOR PERSONS IN THE FOLLOWING LOCATION...
 
IN NORTHWEST MINNESOTA
 
   ...ROSEAU COUNTY
 
AT 540 PM CDT RADAR INDICATED TWO SEVERE THUNDERTORMS. ONE STORM 15
MILES SOUTHWEST OF GREENBUSH OR 50 MILES SOUTHWEST OF WARROAD WHICH
PRODUCED A TORNADO 4 MILES NORTH OF PELAN. THE SECOND SEVERE STORM IS
LOCATED EAST OF WANNASKA OR 26 MILES SOUTHWEST OF WARROAD.
 
ALL COMMUNITIES IN ROSEAU COUNTY ESPECIALLY GREENBUSH...HAUG...BADGER
...PINECREEK...PENCER...SALOL...WARROAD AND LONGWORTH WILL BE AFFECTED
BY THESE STORMS.
 
THIS IS A DANGEROUS STORM SITUATION.  ACT QUICKLY.  IF YOU ARE
IN THE PATH OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF
AVAILABLE.  OTHERWISE...GO TO A SMALL INTERIOR ROOM ON THE LOWEST
FLOOR POSSIBLE.  AVOID WINDOWS.  ABANDON CARS AND MOBILE HOMES
FOR A REINFORCED BUILDING OR GET INTO A DITCH OR CULVERT.
 
 
 
NNNN

What forecasters said that day

The local office's own words before this tornado 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, Jul 27, 2:50 PM CDT, 2 hours 55 minutes before

NDZ012-013-014-015-016-017-018-MNZ001-006-007-010-011-013-272045-

SPECIAL WEATHER STATEMENT FOR COLD AIR FUNNELS
NATIONAL WEATHER SERVICE FARGO ND
245 PM CDT TUE JULY 27 1993

...COLD AIR FUNNELS REPORTED OVER JUST NORTHWEST OF LAKOTA IN NELSON
COUNTY AND IN THE MCCANNA AREA OF WESTERN GRAND FORKS COUNTY...

AT 230 PM CDT  REPORTS OF COLD AIR FUNNELS WERE RECEIVED AT THE
NATIONAL WEATHER SERVICE OFFICE IN FARGO NORTH DAKOTA.  THESE COLD
AIR FUNNELS WERE REPORTED BY THE LOCAL LAW ENFORCEMENT AGENCIES.
THEY ARE CURRENTLY WATCHING THESE COLD AIR FUNNELS AND WARNINGS WILL
BE ISSUED IF NECESSARY.

COLD AIR FUNNELS ARE NOT ASSOCIATED WITH SEVERE THUNDERSTORMS AS
ARE THE TYPE OF FUNNEL CLOUD THAT PRODUCES A TORNADO.  COLD AIR
FUNNELS ARE FORMED BY THUNDERSTORMS AND RAINSHOWERS WHEN UNIQUE
METEOROLOGICAL CIRCUMSTANCES ARE MET.
BENNETT

Local storm report, Jul 27, 3:44 PM CDT, 2 hours 1 minute before

STORM REPORTS
NATIONAL WEATHER SERVICE FARGO ND
340 PM CDT TUE JUL 27 1993

TIME      EVENT
335PM     TORNADO TOUCHDOWN JUST EAST OF MINTO ND...ABOUT 30 MILES NORTH
OF GRAND FORKS. REPORTED BY WALSH COUNPTY SHERIFF.  NO DAMAGE ESTIMATE
REPORTED.
BENNETT

Local storm report, Jul 27, 5:20 PM CDT, 25 minutes before

STORM REPORTS
NATIONAL WEATHER SERVICE FARGO ND
520 PM CDT TUE JUL 27 1993

TIME      EVENT
400PM     TORNADO HIT FARM 1 MI WEST OF AUBURN ND IN NORTHEASTERN WALSH
          COUNTY.  OUT BUILDING DAMAGE.
405PM     TORNADO TOUCHDOWN ALONG HIGHWAY 9...4 MI NORTH OF GRAFTON ND
          IN NORTHEASTERN WALSH COUNTY.
415PM     TORNADO TOUCHDOWN 5 MI NORTHEAST OF WARREN MN IN SOUTHWESTERN
          MARSHALL COUNTY.
423PM     TORNADO TOUCHDOWN ALONG HIGHWAY 11 BETWEEN DONALDSON MN AND
          KARLSTAD MN IN SOUTHERN KITTSON COUNTY.
428PM     TORNADO ON THE GROUND 8 TO 10 MI WEST OF ARGYLE MN IN WESTERN
          MARSHALL COUNTY.
429PM     TORNADO ON THE GROUND 3 MI SOUTH TO SOUTHEAST OF STEPHE N MN IN
          WESTERN MARSHALL COUNTY.
440PM     FUNNEL CLOUD BETWEEN DONALDSON MN IN SOUTHERN KITTSON COUNTY
          AND STEVEN MN IN WESTERN MARSHALL COUNTY.

Local storm report, Jul 27, 5:23 PM CDT, 22 minutes before

STORM REPORTS
NATIONAL WEATHER SERVICE FARGO ND
523 PM CDT TUE JUL 27 1993

TIME      EVENT
443PM     FUNNEL CLOUD 3 MI NORTH AND 1/2 MI WEST OF STEPHEN MN IN
          WESTERN MARSHALL COUNTY.
444PM   &  WALL CLOUD JUST WEST OF STRANDQUIST MN IN WESTERN MARSHALL
          COUNTY.

JEURISSEN

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 27, 3:53 PM CDT	Tornado Warning	FGF	Kittson, Marshall	67 min
Jul 27, 4:40 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami	65 min
Jul 27, 4:44 PM CDT	Severe Thunderstorm Warning	FGF	Beltrami	61 min
Jul 27, 4:56 PM CDT	Tornado Warning	FGF	Roseau	64 min
Jul 27, 4:58 PM CDT	Tornado Warning	FGF	Kittson, Marshall	62 min

Nearby

Tornado Warnings in Minnesota, 1993 Every tornado warning in 1993 Tornadoes in 1993

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.