Alert archive / Colorado / Tornado Warnings in 1988
Tornado Warning 6, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at Jun 8, 1988, 6:10 PM MDT for Adams County, Arapahoe County, Colorado. It was in force for 30 min.
The area
The counties it named.
The facts
- Issued
- Jun 8, 1988, 6:10 PM MDT (00:10 UTC)
- Expired
- Jun 8, 1988, 6:40 PM MDT
- In force
- 30 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
Counties Adams County, CO, Arapahoe 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, 0.2 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.
- Mixed-layer CAPE
- 98 J/kg
- Mixed-layer CIN
- -90 J/kg
- Mixed-layer LCL
- 3592 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KDEN 090013
TORDEN
COC001-005-090040-
BULLETIN...EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
610 PM MDT WED JUN 08 1988
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 640 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTIES OF NORTHEAST COLORADO:
CENTRAL ADAMS
CENTRAL ARAPAHOE
INCLUDING THE FOLLOWING TOWNS/CITIES:
BENNETT STRASBURG AND WATKINS
AT 607 PM REPORTS OF TORNADOES BEING SIGHTED NORTHWEST OF THE
TOWN OF BENNETT. LITTLE MOVEMENT WAS NOTED.
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
9AGENCY 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.
JLW
LAT..LON 3999 10473 3999 10428 3960 10435 3961 10477What forecasters said that day
The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Jun 8, 4:43 PM MDT, 1 hour 27 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
445 PM MDT WED JUN 8 1988
...SHOWERS AND THUNDERSTORMS OVER NORTHEAST COLORADO...
SCATTERED SHOWERS AND THUNDERSTORMS WERE RUMBLING ACROSS PORTIONS OF
NORTHEAST COLORADO LATE WEDNESDAY AFTERNOON. AS OF 445 PM LIMON RADAR
SHOWED THE STRONGEST OF THE STORMS TO BE OVER SOUTHEAST WELD COUNTY NEAR
THE TOWNS OF WIGGINS ROGGENS AND PROSPECT VALLEY...AND ALSO OVER
SOUTHERN LOGAN COUNTY SOUTHEAST OF STERLING. OTHER STORMS WERE OVER
PARTS OF WASHINGTON AND YUMA COUNTIES. MOVEMENT OF THE STORMS WAS
TOWARD THE NORTHEAST AT AROUND 10 MPH.
THESE STORMS MAY BE ACCOMPANIED BY BRIEF HEAVY RAINS STRONG GUSTY WINDS
AND HAIL AS THEY AFFECT PORTIONS OF NORTHEAST COLORADO THROUGH EARLY
THIS EVENING.
JLWSpecial weather statement, Jun 8, 6:02 PM MDT, 8 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
600 PM MDT WED JUN 8 1988
...THUNDERSTORMS DEVELOPING EAST OF DENVER...
AT 6PM RADAR SHOWED THE RAPID DEVELOPMENT OF A LINE OF THUNDERSTORMS
ACROSS SOUTHEAST WELD CENTRAL ADAMS AND CENTRAL ARAPAHOE COUNTIES IN
NORTHEAST COLORADO. THE STORMS WERE ALIGNED NORTH-SOUTH FROM NEAR
KEENESBURG TO SOUTH OF WATKINS.
DOPPLER RADAR WAS SHOWING THE POTENTIAL FOR CONTINUED DEVELOPMENT OF
THIS LINE OVER THE NEXT HOUR. PEOPLE NEAR THE TOWNS OF KEENESBURG
PROSPECT-VALLEY WATKINS BENNETT AND STRASBURG AS WELL AS MOTORISTS
TRAVELLING EAST ON I-70 FROM DENVER MAY EXPERIENCE HEAVY RAIN HAIL AND
STRONG GUSTY WINDS WITH THE STORMS UNTIL ABOUT 8PM THIS EVENING.
JLWThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 9, 2:38 PM MDT | Severe Thunderstorm Warning | BOU | Boulder | 62 min |
| Jun 9, 2:58 PM MDT | Severe Thunderstorm Warning | BOU | Larimer | 62 min |
| Jun 9, 4:03 PM MDT | Severe Thunderstorm Warning | BOU | Douglas | 62 min |
Nearby
Tornado Warnings in Colorado, 1988Every tornado warning in 1988Tornadoes 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.