Alert archive / Colorado / Tornado Warnings in 1989

Tornado Warning 2, NWS Denver/Boulder, CO

May 16, 1989Larimer County, Weld County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at May 16, 1989, 6:02 PM MDT for Larimer County, Weld County, Colorado. It was in force for 28 min.

The area

The counties it named.

The facts

Issued
May 16, 1989, 6:02 PM MDT (00:02 UTC)
Expired
May 16, 1989, 6:30 PM MDT
In force
28 min
Issued by
NWS Denver/Boulder, CO
Area
Whole counties

Counties Larimer County, CO, Weld 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, 0.0 hours before the alert went out and 166 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-pSkew-T log-p diagram, Denver, CO at 00:00Z on 1989-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 1989-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1711 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
48 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 170007
TORDEN
COC123-069-170035-
 
BULLETIN...EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
602 PM MDT TUE MAY 16 1989
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 630 PM  MDT FOR PEOPLE IN THE FOLLOWING
COUNTIES OF NORTHEAST COLORADO:
 
     EXTREME NORTHWESTERN WELD
     EXTREME NORTHEASTERN LARIMER
 
INCLUDING THE FOLLOWING TOWNS/CITIES:
 
     CARR...ROCKPORT...DICKSON...AND WELLINGTON
 
THE STORM WAS LOCATED 5 MILES NORTHWEST OF WELLINGTON..WHICH IS 13
MILES NORTH OF FT COLLINS.
 
AT 6PM THE WELLINGTON FIRE DEPARTMENT REPORTED FUNNEL CLOUDS
NEARLY TOUCHING THE GROUND 5 MILES NORTHWEST OF WELLINGTON.  THERE HAVE
BEEN NUMEROUS OTHER FUNNEL CLOUD REPORTS IN THE AREA.
 
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.
 
HOLZINGER
 
LAT..LON  4101 10519 4100 10470 4070 10494 4070 10518

What 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, May 16, 1:40 PM MDT, 4 hours 22 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE  DENVER CO
200 PM MDT TUE MAY 16 1989

...RAIN THIS EVENING...THEN MORE RAIN TOMORROW...

THE WET WEATHER OF THE PAST FEW DAYS OVER NORTHEAST COLORADO WILL GET
WETTER OVER THE NEXT TWO DAYS. SHOWERS AND THUNDERSTORMS THIS AFTERNOON
WILL BE MUCH LIKE YESTERDAYS WITH LOCALLY HEAVY RAINS AND SMALL HAIL
POSSIBLE. THIS MAY PRODUCE AREAS OF STREET FLOODING AND PONDING OF WATER
IN LOW LYING AREAS.

TOMORROW SHOWERS AND THUNDERSTORMS WILL DEVELOP AND GRADUALLY TURN INTO
A GENERAL STEADY RAIN THAT WILL CONTINUE INTO THURSDAY MORNING. TOTAL
RAINFALL OF 1 TO 2 INCHES IS LIKELY WITH UP TO 3 INCHES POSSIBLE IN THE
FOOTHILLS. THIS WILL PRODUCE URBAN FLOODING OF UNDERPASSES AND LOW LYING
AREAS. SOME SMALL STREAMS WILL LIKELY RISE AND BE NEAR BANKFULL BY
WEDNESDAY NIGHT.

PERSONS PLANNING TRAVEL THE NEXT TWO DAYS SHOULD BE ON THE LOOKOUT FOR
AREAS OF STANDING WATER AND DO NOT DRIVE INTO WATEJR OF UNKNOWN DEPTH.

DUNN
Special weather statement, May 16, 3:12 PM MDT, 2 hours 50 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE  DENVER CO
310 PM MDT TUE MAY 16 1989

...THUNDERSTORMS MOVING INTO THE DENVER METRO AREA...

AT 3PM THUNDERSTORMS WERE APPROACHING THE DENVER METRO AREA FROM THE
SOUTH.  THE THUNDERSTORMS ARE MOVING NORTHWARD AT ABOUT 25 MILES PER
HOUR.  FREQUENT LIGHTNING...SMALL HAIL...GUSTY WINDS...AND BRIEF
HEAVY RAIN ARE LIKELY OVER MUCH OF THE DENVER METRO AREA BY 4PM.

LIGHTNING IS THE MAIN DANGER WITH THESE STORMS.  PEOPLE OUT OF
DOORS SHOULD MOVE INSIDE WHILE THESE THUNDERSTORMS ARE IN
PROGRESS.  BRIEF HEAVY RAIN COULD CAUSE PONDING IN LOW LYING AREAS
AND MINOR STREET FLOODING.

HOLZINGER

Nearby

Tornado Warnings in Colorado, 1989Every tornado warning in 1989Tornadoes in 1989

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.