Alert archive / North Dakota / Tornado Warnings in 1986

Tornado Warning 1, NWS Grand Forks, ND

June 15, 1986Barnes County, Griggs County, Steele County, North Dakota

NWS Grand Forks, ND issued this tornado warning at Jun 15, 1986, 5:58 PM CDT for Barnes County, Griggs County, Steele County, North Dakota. It was in force for 47 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 15, 1986, 5:58 PM CDT (22:58 UTC)
Expired: Jun 15, 1986, 6:45 PM CDT
In force: 47 min
Issued by: NWS Grand Forks, ND
Area: Whole counties

Counties Barnes County, ND, Griggs County, ND, Steele County, ND

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

Time	Report	Where	Remark
Jun 15, 6:00 PM CDT	Tornado F2	Griggs, ND

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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 11.0 hours before the alert went out and 212 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: 636 J/kg
Mixed-layer CIN: -177 J/kg
Mixed-layer LCL: 657 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: -92 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFAR 152300
TORFAR
NDC003-039-091-152345-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE FARGO ND
558 PM CDT SUN JUN 15 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 645 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF

EAST CENTRAL NORTH DAKOTA...NORTHERN BARNES...SOUTHERN GRIGGS AND
SOUTHERN STEELE

THIS WARNING INCLUDES THE CITIES OF HANNAFORD AND DAZEY.

AT 550 PM CDT A TORNADO WAS REPORTED ON THE GROUND 5 MILES NORTH
OF HANNAFORD NORTH DAKOTA..OR ABOUT 45 MILES NORTHEAST OF
JAMESTOWN NORTH DAKOTA.  IN ADDITION..FUNNEL CLOUDS HAVE BEEN
REPORTED IN THE DAZEY NORTH DAKOTA AREA BY SKYWARN OBSERVERS.

RADAR ALSO INDICATED A SEVERE THUNDERSTORM IN THE SAME AREA.


IF A TORNADO IS APPROACHING GET INTO A BASEMENT...IF NO BASEMENT
IS AVAILABLE...GET INTO THE INNERMOST HALLWAY...STAY AWAY FROM
WINDOWS.  IF CAUGHT OUTSIDE GET INTO A DITCH...GULLY...RAVINE...{OR
EVEN A LOW LYING SPOT ON THE GROUND.  PROTECT YOUR HEAD.  ABANDON
CARS AND MOBILE HOMES.

EWENS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 15, 3:37 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Griggs	38 min
Jun 15, 4:13 PM CDT	Severe Thunderstorm Warning	FGF	Ransom, Sargent	57 min
Jun 15, 4:20 PM CDT	Severe Thunderstorm Warning	FGF	Barnes, Cass	55 min
Jun 15, 5:12 PM CDT	Severe Thunderstorm Warning	FGF	Richland	63 min

Nearby

Tornado Warnings in North Dakota, 1986 Every tornado warning in 1986 Tornadoes in 1986

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.