Alert archive / Colorado / Tornado Warnings in 1988

Tornado Warning 13, NWS Denver/Boulder, CO

June 15, 1988Logan County, Morgan County, Washington County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at Jun 15, 1988, 5:45 PM MDT for Logan County, Morgan County, Washington County, Colorado. It was in force for 30 min.

The area

The counties it named.

The facts

Issued: Jun 15, 1988, 5:45 PM MDT (23:45 UTC)
Expired: Jun 15, 1988, 6:15 PM MDT
In force: 30 min
Issued by: NWS Denver/Boulder, CO
Area: Whole counties

Counties Logan County, CO, Morgan County, CO, Washington 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, 11.8 hours before the alert went out and 51 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: 37 J/kg
Mixed-layer CIN: -227 J/kg
Mixed-layer LCL: 1300 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 34 m²/s²
0-3 km storm-relative helicity: 103 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 152347
TORDEN
COC075-121-087-160015-
 
BULLETIN...EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
545 PM MDT WED JUN 15 1988
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 615 PM  MDT FOR PEOPLE IN THE FOLLOWING
COUNTIES OF NORTHEAST COLORADO:
 
     SOUTHWESTERN LOGAN
     NORTHWESTERN WASHINGTON
     EASTERN MORGAN
 
INCLUDING THE FOLLOWING TOWNS/CITIES:
 
     ATWOOD..BRUSH..AND WILLARD
 
THE STORM IS LOCATED 4 MILES NORTH OF BRUSH..AND 31 MILES
SOUTHWEST OF STERLING.  AT 545 PM A FUNNEL CLOUD WAS REPORTED
OVER BRUSH...AND WAS ALSO INDICATED BY RADAR.
 
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.
 
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 WEATHER SERVICE
AT 361-0663.  DO NOT CALL THIS NUMBER FOR INFORMATION.
 
DULONG
 
LAT..LON  4054 10366 4056 10325 4005 10326 4014 10367

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 15, 4:05 PM MDT	Tornado Warning	BOU	Adams	30 min
Jun 15, 4:19 PM MDT	Tornado Warning	BOU	Adams, Arapahoe, Denver	41 min
Jun 15, 4:51 PM MDT	Severe Thunderstorm Warning	BOU	Adams, Arapahoe, Morgan, Washington, Weld	59 min
Jun 15, 4:51 PM MDT	Severe Thunderstorm Warning	BOU	Logan	59 min
Jun 15, 5:17 PM MDT	Tornado Warning	BOU	Morgan, Weld	33 min

Nearby

Tornado Warnings in Colorado, 1988 Every tornado warning in 1988 Tornadoes in 1988

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.