Alert archive / North Dakota / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 13, NWS Grand Forks, ND

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

NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 15, 1986, 3:37 PM CDT for Barnes County, Griggs County, North Dakota. It was in force for 38 min.

The area

The counties it named.

The facts

Issued: Jun 15, 1986, 3:37 PM CDT (20:37 UTC)
Expired: Jun 15, 1986, 4:15 PM CDT
In force: 38 min
Issued by: NWS Grand Forks, ND
Area: Whole counties

Counties Barnes County, ND, Griggs County, ND

The radar

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

The nearest sounding before it

Bismarck Municip, ND (KBIS), launched 12:00Z, 8.6 hours before the alert went out and 199 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 152037
SVRFAR
NDC003-039-152115-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FARGO ND
337 PM CDT SUN JUN 15 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 415 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES OF

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

AT 330 PM CDT A SEVERE THUNDERSTORM WAS 15 MILES NORTH OF JAMESTOWN
MOVING TOWARD THE EAST AT 35 MILES AN HOUR.

AT 315 PM CDT 2 INCH HAIL WAS REPORTED AT COURTENAY NORTH DAKOTA.

REMEMBER...SEVERE THUNDERSTORMS CAN PRODUCE DAMAGING WINDS IN EXCESS
OF 58 MPH AND/OR HAIL 3/4 OF AN INCH OR LARGER...DEADLY LIGHTNING...
AND HEAVY RAINS THAT CAN QUICKLY FLOOD A LOW LYING AREA.

THESE STORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO WITH LITTLE
OR NO ADVANCE WARNING...SO YOU SHOULD BE ON THE LOOKOUT AND BE
PREPARED TO MOVE TO A PLACE OF SAFETY.

IF THREATENING WEATHER APPROACHES...YOU SHOULD GO TO A PLACE OF
SAFETY IMMEDIATELY.  REPORT ALL SEVERE WEATHER TO YOUR LOCAL LAW
ENFORCEMENT AGENCY AFTER THE STORM PASSES.

VOELKER

The office that day

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

Issued	Product	Office	Counties	Lasted
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
Jun 15, 5:58 PM CDT	Tornado Warning	FGF	Barnes, Griggs, Steele	47 min

Nearby

Severe Thunderstorm Warnings in North Dakota, 1986 Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive.