Alert archive / Colorado / Tornado Warnings in 1993

Tornado Warning 8, NWS Denver/Boulder, CO

June 22, 1993Washington County, Yuma County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at Jun 22, 1993, 3:55 PM MDT for Washington County, Yuma County, Colorado. It was in force for 35 min.

The area

The counties it named.

The facts

Issued
Jun 22, 1993, 3:55 PM MDT (21:55 UTC)
Expired
Jun 22, 1993, 4:30 PM MDT
In force
35 min
Issued by
NWS Denver/Boulder, CO
Area
Whole counties

Counties Washington County, CO, Yuma County, CO

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 9.9 hours before the alert went out and 38 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 12:00Z on 1993-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 1993-06-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 57 square meters per square second.1939587897Sfc1 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2443 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
57 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KDEN 222157
TORDEN
COC121-125-222230-
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
355 PM MDT TUE JUN 22 1993

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A TORNADO
WARNING EFFECTIVE UNTIL 430 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTIES

IN NORTHEASTERN COLORADO
     EAST CENTRAL WASHINGTON AND WEST CENTRAL YUMA

INCLUDING THE FOLLOWING LOCATIONS
     ABARR...ELBA...HEARTSTRONG...OTIS...PLATNER AND YUMA

AT 355 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A POSSIBLE TORNADO 8 MILES SOUTHEAST OF AKRON ...OR ABOUT 44
MILES SOUTH OF STERLING.

THE STORM WAS MOVING NORTHEAST AT 20 MPH.

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
FORECAST OFFICE IN DENVER.

DULONG

LAT...LON 3979 10251 3980 10316 4024 10316 4024 10251

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, Jun 22, 12:25 PM MDT, 3 hours 30 minutes before
COZ002-004-011-012-013-230600-

SIGNIFICANT WEATHER OUTLOOK FOR NORTHEAST AND NORTH CENTRAL COLORADO
NATIONAL WEATHER SERVICE DENVER CO
1225 PM MDT TUE JUN 22 1993

UPDATED TO INCREASE SEVERE WEATHER THREAT ALONG FRONT RANGE

THIS OUTLOOK PERTAINS TO THE FOLLOWING COLORADO COUNTIES

ADAMS          DENVER     JACKSON      LOGAN       SEDGWICK     YUMA
ARAPAHOE       DOUGLAS    JEFFERSON    MORGAN      SUMMIT
BOULDER        GILPIN     LARIMER      PARK        WASHINGTON
CLEAR CREEK    GRAND      LAKE         PHILLIPS    WELD

THE AIRMASS HAS DRIED OUT NEAR THE FOOTHILLS...BUT THE DEWPOINTS
WILL REMAIN HIGH THIS AFTERNOON OVER THE NORTHEAST PLAINS.  A
DRY LINE MARKS THE BOUNDARY BETWEEN THESE TWO AIR MASSES...
AND AT NOON IT EXTENDED ACROSS NORTHEAST WELD...WESTERN MORGAN TO
EASTERN ARAPAHOE COUNTY.  TO THE WEST OF THE DRY LINE THERE WILL BE A
FEW GUSTY THUNDERSTORMS...BUT SEVERE WEATHER IS UNLIKELY.

THE DRY LINE WILL CONTINUE SLIDING SLOWLY EAST THIS AFTERNOON...AND
THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG THE DRY LINE...WITH SOME
SEVERE THUNDERSTORMS POSSIBLE MAINLY EAST OF FORT MORGAN AFTER 3PM.
SPOTTERS MAY BE ACTIVATED FOR THE NORTHEAST PLAINS AND NORTHEAST
BORDER THIS AFTERNOON.

RTG
Special weather statement, Jun 22, 12:28 PM MDT, 3 hours 27 minutes before
COZ002-004-011-012-013-230600-

SIGNIFICANT WEATHER OUTLOOK FOR NORTHEAST AND NORTH CENTRAL COLORADO
NATIONAL WEATHER SERVICE DENVER CO
1225 PM MDT TUE JUN 22 1993

UPDATED TO INCREASE SEVERE WEATHER THREAT ALONG FRONT RANGE

THIS OUTLOOK PERTAINS TO THE FOLLOWING COLORADO COUNTIES

ADAMS          DENVER     JACKSON      LOGAN       SEDGWICK     YUMA
ARAPAHOE       DOUGLAS    JEFFERSON    MORGAN      SUMMIT
BOULDER        GILPIN     LARIMER      PARK        WASHINGTON
CLEAR CREEK    GRAND      LAKE         PHILLIPS    WELD

THE AIRMASS HAS DRIED OUT NEAR THE FOOTHILLS...BUT THE DEWPOINTS
WILL REMAIN HIGH THIS AFTERNOON OVER THE NORTHEAST PLAINS.  A
DRY LINE MARKS THE BOUNDARY BETWEEN THESE TWO AIR MASSES...
AND AT NOON IT EXTENDED ACROSS NORTHEAST WELD...WESTERN MORGAN TO
EASTERN ARAPAHOE COUNTY.  TO THE WEST OF THE DRY LINE THERE WILL BE A
FEW GUSTY THUNDERSTORMS...BUT SEVERE WEATHER IS UNLIKELY.

THE DRY LINE WILL CONTINUE SLIDING SLOWLY EAST THIS AFTERNOON...AND
THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG THE DRY LINE...WITH SOME
SEVERE THUNDERSTORMS POSSIBLE MAINLY EAST OF FORT MORGAN AFTER 3PM.
SPOTTERS MAY BE ACTIVATED FOR THE NORTHEAST PLAINS AND NORTHEAST
BORDER THIS AFTERNOON.

RTG

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 22, 5:22 PM MDTSevere Thunderstorm WarningBOUYuma53 min
Jun 22, 5:33 PM MDTTornado WarningBOUSedgwick27 min

Nearby

Tornado Warnings in Colorado, 1993Every tornado warning in 1993Tornadoes in 1993

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.