Alert archive / Colorado / Tornado Warnings in 1986

Tornado Warning 3, NWS Denver/Boulder, CO

June 8, 1986Adams County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at Jun 8, 1986, 5:44 PM MDT for Adams County, Colorado. It was in force for 26 min.

The area

The counties it named.

The facts

Issued: Jun 8, 1986, 5:44 PM MDT (23:44 UTC)
Expired: Jun 8, 1986, 6:10 PM MDT
In force: 26 min
Issued by: NWS Denver/Boulder, CO
Area: Whole counties

County Adams County, CO

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

Denver, CO (KDEN), launched 12:00Z, 11.7 hours before the alert went out and 95 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: 117 J/kg
Mixed-layer CIN: -286 J/kg
Mixed-layer LCL: 776 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 103 m²/s²
0-3 km storm-relative helicity: 50 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 KDEN 082344
TORDEN
COC001-090010-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
544 PM MDT SUN JUN 8 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING 
EFFECTIVE UNTIL 610 PM MDT FOR PEOPLE IN THE FOLLOWING COUNTY OF

NORTHEAST COLORADO...CENTRAL ADAMS

THIS WARNING INCLUDES THE FOLLOWING TOWNS AND CITIES... AREAS NORTH
OF THE TOWNS OF WATKINS AND BENNETT AND STRASBURG

AT 540 PM MDT SUNDAY THE PUBLIC REPORTED SEVERAL TORNADOES ON THE
GROUND ABOUT 40 MILES EAST NORTHEAST OF DENVER NEAR THE TOWNS
OF BENNETT AND WATKINS.  THE TORNADOES ARE MOVING TO THE NORTHEAST
AT 15 MPH.  TAKE COVER IMMEDIATELY.

IN HOMES GO TO THE BASEMENT OR INTO A CLOSET OR BATHROOM.  IN SCHOOLS
...HIGH RISES AND HOSPITALS GO TO AN INTERIOR HALLWAY ON THE LOWEST
FLOOR.  IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GO TO A
SUBSTANTIAL SHELTER.  IF NO SHELTER IS AVAILABLE..LIE FLAT IN THE
NEAREST DITCH...GULLY OR OTHER LOW SPOT.
<
IN ALL CASES...STAY AWAY FROM WINDOWS...DOORS AND OUTSIDE WALLS.
PROTECT YOUR HEAD AND FACE.  TRY TO GET UNDER SOMETHING STURDY.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORTS TO THE NATIONAL WEATHER SERVICE IN DENVER...OR
CALL YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN DENVER AT
361-0663.  DO NOT CALL THIS NUMBER FOR INFORMATION.

A TORNADO WATCH REMAINS IN AFFECT FOR MOST OF NORTHEAST COLORADO
TIL 8 PM MDT.

THALER

The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 7, 7:37 PM MDT	Severe Thunderstorm Warning	BOU	Morgan	53 min
Jun 8, 3:26 PM MDT	Severe Thunderstorm Warning	BOU	Adams	54 min
Jun 8, 4:40 PM MDT	Severe Thunderstorm Warning	BOU	Weld	65 min
Jun 8, 5:17 PM MDT	Tornado Warning	BOU	Adams, Arapahoe	23 min

Nearby

Tornado Warnings in Colorado, 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; the sounding from the Mesonet's radiosonde archive.