Alert archive / Minnesota / Tornado Warnings in 1997

Tornado Warning 6, NWS Grand Forks, ND

June 27, 1997Roseau County, Minnesota

NWS Grand Forks, ND issued this tornado warning at Jun 27, 1997, 5:27 PM CDT for Roseau County, Minnesota. It was in force for 33 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jun 27, 1997, 5:27 PM CDT (22:27 UTC)
Expired: Jun 27, 1997, 6:00 PM CDT
In force: 33 min
Issued by: NWS Grand Forks, ND
Area: Whole counties

County Roseau County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 178 km from the middle of the area, began a volume at 22:29 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Jun 27, 5:54 PM CDT	Hail 1.75	Badger, MN

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 27, 5:00 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

International Fa, MN (KINL), launched 12:00Z, 10.5 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: 8 J/kg
Mixed-layer CIN: -209 J/kg
Mixed-layer LCL: 1672 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 130 m²/s²
0-3 km storm-relative helicity: 101 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

986 
WFUS1 KFAR 272230 RRA
TORFAR
MNC135-272300-
 
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
527 PM CDT FRI JUN 27 1997
 
THE NATIONAL WEATHER SERVICE IN EASTERN ND/GRAND FORKS HAS ISSUED A
TORNADO WARNING EFFECTIVE UNTIL  600 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN NORTHWEST MINNESOTA
 
   ...ROSEAU COUNTY
 
AT 530 PM CDT DOPPLER RADAR AND SPOTTERS CONTINUED TO INDICATE A SEVERE
THUNDERSTORM FIVE MILES WEST OF ROSEAU MOVING TO THE EAST AT 20 MPH. THE
STORM WILL BE AFFECTING ROSEAU BY 535 PM CDT.
 
THIS STORM HAS PRODUCED AT LEAST ONE TORNADO AND DIME-SIZE HAIL.  TAKE
COVER IMMEDIATELY.
 
YOU SHOULD SEEK SHELTER IN THE SMALLEST ROOM IN THE
INNERMOST PORTION OF YOUR HOME OR OFFICE ON THE LOWEST
FLOOR.  THE BASEMENT IS BEST.  AVOID WINDOWS.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 27, 4:32 PM CDT	Severe Thunderstorm Warning	FGF	Roseau	28 min
Jun 27, 4:48 PM CDT	Tornado Warning	FGF	Roseau	27 min
Jun 27, 5:02 PM CDT	Tornado Warning	FGF	Roseau	28 min
Jun 27, 5:56 PM CDT	Tornado Warning	FGF	Roseau	34 min
Jun 27, 6:27 PM CDT	Tornado Warning	FGF	Roseau	33 min
Jun 27, 6:55 PM CDT	Tornado Warning	FGF	Roseau	35 min

Nearby

Tornado Warnings in Minnesota, 1997 Every tornado warning in 1997 Tornadoes in 1997

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.