Alert archive / Colorado / Tornado Warnings in 1992

Tornado Warning 9, NWS Denver/Boulder, CO

June 20, 1992Adams County, Weld County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at Jun 20, 1992, 6:03 PM MDT for Adams County, Weld County, Colorado. It was in force for 27 min. 2 reports 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 20, 1992, 6:03 PM MDT (00:03 UTC)
Expired: Jun 20, 1992, 6:30 PM MDT
In force: 27 min
Issued by: NWS Denver/Boulder, CO
Area: Whole counties

Counties Adams County, CO, Weld County, CO

What was reported inside it

Time	Report	Where	Remark
Jun 20, 6:14 PM MDT	Tornado F0	Adams, CO
Jun 20, 6:15 PM MDT	Tornado F0	Adams, CO

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

Denver, CO (KDEN), launched 00:00Z, 0.1 hours before the alert went out and 104 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: 1461 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 1459 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: -117 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 KDEN 210005
TORDEN
COC001-123-210030-

BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
603 PM MDT SAT JUN 20 1992

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A TORNADO
WARNING EFFECTIVE UNTIL 630 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTIES

IN NORTHEASTERN COLORADO
     WESTERN ADAMS AND EXTREME SOUTHWESTERN WELD

INCLUDING THE FOLLOWING LOCATIONS
     BARR LAKE...BRIGHTON...COMMERCE CITY AND LOCHBUIE

AT 603 PM MDT NUMEROUS REPORTS OF TORNADOES FROM HAM SPOTTERS AND STATE
PATROL WERE RECEIVED BETWEEN BRIGHTON AND LOCHBUIE ALONG I-76...OR
ABOUT 21 MILES NORTHEAST OF DENVER.

THE TORNADOS WERE MOVING SOUTH AT 15 MPH.

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT.  GET
UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE.  IF NO
BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE
BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET.  USE
BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY
FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER.  IF NO SHELTER IS AVAILABLE...LIE FLAT IN
THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH
YOUR HANDS.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT
AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
FORECAST OFFICE IN DENVER.


LAT...LON 3982 10455 3984 10489 4004 10487 4005 10452

HOLMES

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 6:30 PM MDT	Tornado Warning	BOU	Adams	15 min
Jun 20, 6:42 PM MDT	Severe Thunderstorm Warning	BOU	Washington	63 min
Jun 20, 7:47 PM MDT	Tornado Warning	BOU	Washington	43 min
Jun 20, 7:57 PM MDT	Tornado Warning	BOU	Washington	33 min
Jun 20, 10:24 PM MDT	Severe Thunderstorm Warning	BOU	Boulder, Weld	21 min
Jun 21, 4:02 PM MDT	Severe Thunderstorm Warning	BOU	Boulder, Larimer	43 min
Jun 21, 4:51 PM MDT	Tornado Warning	BOU	Adams, Arapahoe	39 min
Jun 21, 5:58 PM MDT	Severe Thunderstorm Warning	BOU	Phillips, Yuma	32 min

Nearby

Tornado Warnings in Colorado, 1992 Every tornado warning in 1992 Tornadoes in 1992

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.