Alert archive / Colorado / Tornado Warnings in 1987

Tornado Warning 2, NWS Goodland, KS

June 18, 1987Elbert County, Colorado

NWS Goodland, KS issued this tornado warning at Jun 18, 1987, 8:00 PM MDT for Elbert County, Colorado. It was in force for 20 min.

The area

The counties it named.

The facts

Issued: Jun 18, 1987, 8:00 PM MDT (02:00 UTC)
Expired: Jun 18, 1987, 8:20 PM MDT
In force: 20 min
Issued by: NWS Goodland, KS
Area: Whole counties

County Elbert 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 00:00Z, 2.0 hours before the alert went out and 101 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: -333 J/kg
Mixed-layer LCL: 1544 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 104 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KDEN 190202
TORDEN
COC039-190220-
 
BULLETIN...EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
800 PM MDT THU JUN 18 1987
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 820 PM  MDT FOR PEOPLE IN THE FOLLOWING
COUNTIES OF EAST CENTRAL COLORADO:
 
     WEST CENTRAL ELBERT
 
INCLUDING THE FOLLOWING TOWNS/CITIES:
 
     KIOWA
 
THE STORM IS LOCATED 36 MILES NORTHEAST OF COLORADO SPRINGS.
 
AT 750 PM MDT RADAR INDICATED A POSSIBLE TORNADO 1 MILE SOUTH OF 
KIOWA COLORADO..MOVING TOWARD THE EAST AT 10 TO 15 MPH.
 
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 OR OTHER LOW SPOT.
IN ALL CASES..STAY AWAY FROM WINDOWS..DOORS AND OUTSIDE WALLS.
 
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR MOST OF EASTERN
COLORADO UNTIL 10 PM MDT.
 
TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT
AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE OFFICE
IN DENVER..OR CALL YOUR REPORT TO THE NATIONAL WEATH9ER SERVICE
AT 361-0663.  DO NOT CALL THIS NUMBER FOR INFORMATION.
 
SEM
 
LAT..LON  3938 10450 3938 10425 3921 10428 3924 10458

The office that day

Everything else NWS Goodland, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 18, 6:29 PM MDT	Severe Thunderstorm Warning	GLD	Elbert	61 min
Jun 18, 9:06 PM MDT	Severe Thunderstorm Warning	GLD	Lincoln	54 min
Jun 18, 11:03 PM MDT	Severe Thunderstorm Warning	GLD	Lincoln	57 min
Jun 19, 1:16 AM MDT	Severe Thunderstorm Warning	GLD	Cheyenne	59 min

Nearby

Tornado Warnings in Colorado, 1987 Every tornado warning in 1987 Tornadoes in 1987

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.