Alert archive / Colorado / Tornado Warnings in 1992

Tornado Warning 13, NWS Denver/Boulder, CO

June 21, 1992Adams County, Arapahoe County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at Jun 21, 1992, 4:51 PM MDT for Adams County, Arapahoe County, Colorado. It was in force for 39 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 21, 1992, 4:51 PM MDT (22:51 UTC)
Expired: Jun 21, 1992, 5:30 PM MDT
In force: 39 min
Issued by: NWS Denver/Boulder, CO
Area: Whole counties

Counties Adams County, CO, Arapahoe County, CO

What was reported inside it

Time	Report	Where	Remark
Jun 21, 4:51 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 12:00Z, 10.9 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: 635 J/kg
Mixed-layer CIN: -179 J/kg
Mixed-layer LCL: 882 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 48 m²/s²
0-3 km storm-relative helicity: 89 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KDEN 212253
TORDEN
COC001-005-212330-

BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
451 PM MDT SUN JUN 21 1992

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A TORNADO
WARNING EFFECTIVE UNTIL 530 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTIES

IN NORTHEASTERN COLORADO
     SOUTH CENTRAL ADAMS AND CENTRAL ARAPAHOE

INCLUDING THE FOLLOWING LOCATIONS
     BENNETT...COUNTRY GARDENS AND MANILA VILLAGE

AT 451 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A POSSIBLE TORNADO 4 MILES SOUTH OF COUNTRY GARDENS ...OR ABOUT
32 MILES EAST OF DENVER.

AT 451 PM MDT THE WEATHER SPOTTERS REPORTED A TORNADO 3 MILES
SOUTH OF STRASBURG ...OR ABOUT 32 MILES EAST OF DENVER.

THE STORM WAS NEARLY STATIONARY AND THE TORNADO WAS MOVING SLOWLY TOWARD
THE SOUTH. 

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
FORECxAST OFFICE IN DENVER.

CUOCO
LAT...LON 3958 10421 3958 10437 3975 10464 3979 10439

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 6:03 PM MDT	Tornado Warning	BOU	Adams, Weld	27 min
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, 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.