Alert archive / Colorado / Tornado Warnings in 1993

Tornado Warning 10, NWS Denver/Boulder, CO

June 23, 1993Logan County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at Jun 23, 1993, 4:33 PM MDT for Logan County, Colorado. It was in force for 57 min.

The area

The counties it named.

The facts

Issued
Jun 23, 1993, 4:33 PM MDT (22:33 UTC)
Expired
Jun 23, 1993, 5:30 PM MDT
In force
57 min
Issued by
NWS Denver/Boulder, CO
Area
Whole counties

County Logan County, CO

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 10.6 hours before the alert went out and 96 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 1993-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 1993-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -95 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
3 J/kg
Mixed-layer CIN
-232 J/kg
Mixed-layer LCL
1492 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
-95 m²/s²
0-3 km storm-relative helicity
75 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 232234
TORDEN
COC075-232300-

BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
433 PM MDT WED JUN 23 1993

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A TORNADO
WARNING EFFECTIVE UNTIL 500 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTIES:

IN NORTHEASTERN COLORADO
     NORTHERN LOGAN

INCLUDING THE FOLLOWING LOCATIONS
     CROOK...ILIFF...NORTH STERLING RESERVOIR...PADRONI...PEETZ
     ...PROCTOR AND TWIN BUTTES

AT 433 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A POSSIBLE TORNADO NEAR THE TOWN OF PEETZ...OR ABOUT 20 MILES
NORTH OF STERLING.

THE STORM WAS MOVING EAST-SOUTHEAST AT 15 TO 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.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT
AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
FORECAST OFFICE IN DENVER.

LAT...LON 4076 10270 4074 10340 4097 10344 4098 10273

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 23, 1:55 PM MDT, 2 hours 38 minutes before
COZ011-012-013-240600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
155 PM MDT WED JUN 23 1993

...TORNADO WATCH IN EFFECT UNTIL 8 PM MDT...

AT 155 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR WAS INDICATING
AN AREA OF SHOWERS AND THUNDERSTORMS DEVELOPING IN LARIMER COUNTY...
MAINLY NORTH OF FORT COLLINS.  THESE STORMS WERE MOVING EAST AT 20 TO
30 MPH AND WERE NOT PRODUCING ANY SEVERE WEATHER AT THAT TIME.

THE DEVELOPMENT OF MORE THUNDERSTORMS SHOULD CONTINUE INTO THIS
AFTERNOON AND INTO THIS EVENING.  THE POTENTIAL FOR STORMS THAT PRODUCE
LARGE HAIL...DAMAGING WINDS...AND POSSIBLY A FEW TORNADOES IS QUITE
HIGH.  BE SURE TO ALERT EVERYONE AROUND YOU...ESPECIALLY THE VISUAL AND
HEARING IMPAIRED AND THE ELDERLY...OF THE THREAT OF SEVERE WEATHER.
CONTINUE TO MONITOR NOAA WEATHER RADIO FOR FURTHER UPDATES.

HEITKAMP
Special weather statement, Jun 23, 1:59 PM MDT, 2 hours 34 minutes before
COZ011-012-013-240600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
155 PM MDT WED JUN 23 1993

...TORNADO WATCH IN EFFECT UNTIL 8 PM MDT...

AT 155 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR WAS INDICATING
AN AREA OF SHOWERS AND THUNDERSTORMS DEVELOPING IN LARIMER COUNTY...
MAINLY NORTH OF FORT COLLINS.  THESE STORMS WERE MOVING EAST AT 20 TO
30 MPH AND WERE NOT PRODUCING ANY SEVERE WEATHER AT THAT TIME.

THE DEVELOPMENT OF MORE THUNDERSTORMS SHOULD CONTINUE INTO THIS
AFTERNOON AND INTO THIS EVENING.  THE POTENTIAL FOR STORMS THAT PRODUCE
LARGE HAIL...DAMAGING WINDS...AND POSSIBLY A FEW TORNADOES IS QUITE
HIGH.  BE SURE TO ALERT EVERYONE AROUND YOU...ESPECIALLY THE VISUAL AND
HEARING IMPAIRED AND THE ELDERLY...OF THE THREAT OF SEVERE WEATHER.
CONTINUE TO MONITOR NOAA WEATHER RADIO FOR FURTHER UPDATES.

HEITKAMP
Special weather statement, Jun 23, 2:44 PM MDT, 1 hour 49 minutes before
COZ011-012-013-240000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
245 PM MDT WED JUN 23 1993

...TORNADO WATCHES COVER ALL OF NORTHEAST COLORADO WELL INTO THIS
EVENING...

AT 245 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO SHOW
SHOWERS AND THUNDERSTORMS DEVELOPING IN LARIMER COUNTY.  THE MAJORITY
OF THE ACTIVITY WAS NORTH OF FORT COLLINS.  THESE STORMS WERE MOVING
EAST-NORTHEAST AT 15 TO 25 MPH.  NO REPORTS OF ANY SEVERE WEATHER HAVE
BEEN RECEIVED WITH THESE STORMS.

CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF MORE THUNDERSTORMS
INTO THIS AFTERNOON AND INTO THIS EVENING.  THE POTENTIAL FOR STORMS
THAT PRODUCE LARGE HAIL...DAMAGING WINDS...AND POSSIBLY A FEW TORNADOES
IS QUITE HIGH.  BE SURE TO ALERT EVERYONE AROUND YOU...ESPECIALLY THE
VISUALLY AND HEARING IMPAIRED AND THE ELDERLY...OF THE THREAT OF SEVERE
WEATHER.

REMEMBER A TORNADO WATCH IS IN EFFECT FOR MOST OF NORTHEAST COLORADO
UNTIL 8 PM MDT.  WHILE AREAS ALONG THE NORTHEAST BORDER ARE UNDER A
TORNADO WATCH UNTIL 10 PM MDT.

HEITKAMP
Special weather statement, Jun 23, 2:45 PM MDT, 1 hour 48 minutes before
COZ011-012-013-240000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
245 PM MDT WED JUN 23 1993

...TORNADO WATCHES COVER ALL OF NORTHEAST COLORADO WELL INTO THIS
EVENING...

AT 245 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO SHOW
SHOWERS AND THUNDERSTORMS DEVELOPING IN LARIMER COUNTY.  THE MAJORITY
OF THE ACTIVITY WAS NORTH OF FORT COLLINS.  THESE STORMS WERE MOVING
EAST-NORTHEAST AT 15 TO 25 MPH.  NO REPORTS OF ANY SEVERE WEATHER HAVE
BEEN RECEIVED WITH THESE STORMS.

CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF MORE THUNDERSTORMS
INTO THIS AFTERNOON AND INTO THIS EVENING.  THE POTENTIAL FOR STORMS
THAT PRODUCE LARGE HAIL...DAMAGING WINDS...AND POSSIBLY A FEW TORNADOES
IS QUITE HIGH.  BE SURE TO ALERT EVERYONE AROUND YOU...ESPECIALLY THE
VISUALLY AND HEARING IMPAIRED AND THE ELDERLY...OF THE THREAT OF SEVERE
WEATHER.

REMEMBER A TORNADO WATCH IS IN EFFECT FOR MOST OF NORTHEAST COLORADO
UNTIL 8 PM MDT.  WHILE AREAS ALONG THE NORTHEAST BORDER ARE UNDER A
TORNADO WATCH UNTIL 10 PM MDT.

HEITKAMP
Special weather statement, Jun 23, 3:37 PM MDT, 56 minutes before
COZ012-232200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
337 PM MDT WED JUN 23 1993

...STRONG THUNDERSTORM IN NORTHEAST WELD COUNTY...

AT 337 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG
THUNDERSTORM 20 MILES WEST OF WESTPLAINS...OR ABOUT 40 MILES NORTHWEST
OF STERLING.  THIS STORM WAS MOVING TO THE EAST-NORTHEAST AT 15 TO 20
MPH AND WILL BE IN NORTHWEST LOGAN COUNTY BY 4 PM MDT.  THIS STORM IS
CAPABLE OF PRODUCING BRIEF HEAVY RAIN...FREQUENT LIGHTNING...AND SMALL
HAIL.

IF YOU LIVE NEAR WESTPLAINS OR ELSEWHERE IN NORTHEAST WELD OR NORTHWEST
LOGAN COUNTIES...BE ON THE LOOKOUT FOR THIS STORM.  CONTINUE TO MONITOR
NOAA WEATHER RADIO...COMMERCIAL RADIO...AND/OR TELEVISION FOR FURTHER
UPDATES.

REMEMBER TORNADO WATCHES ARE IN EFFECT FOR ALL OF NORTHEAST COLORADO
WELL INTO THIS EVENING.

HEITKAMP
Special weather statement, Jun 23, 3:39 PM MDT, 54 minutes before
COZ012-232200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
337 PM MDT WED JUN 23 1993

...STRONG THUNDERSTORM IN NORTHEAST WELD COUNTY...

AT 337 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG
THUNDERSTORM 20 MILES WEST OF WESTPLAINS...OR ABOUT 40 MILES NORTHWEST
OF STERLING.  THIS STORM WAS MOVING TO THE EAST-NORTHEAST AT 15 TO 20
MPH AND WILL BE IN NORTHWEST LOGAN COUNTY BY 4 PM MDT.  THIS STORM IS
CAPABLE OF PRODUCING BRIEF HEAVY RAIN...FREQUENT LIGHTNING...AND SMALL
HAIL.

IF YOU LIVE NEAR WESTPLAINS OR ELSEWHERE IN NORTHEAST WELD OR NORTHWEST
LOGAN COUNTIES...BE ON THE LOOKOUT FOR THIS STORM.  CONTINUE TO MONITOR
NOAA WEATHER RADIO...COMMERCIAL RADIO...AND/OR TELEVISION FOR FURTHER
UPDATES.

REMEMBER TORNADO WATCHES ARE IN EFFECT FOR ALL OF NORTHEAST COLORADO
WELL INTO THIS EVENING.

HEITKAMP

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 22, 6:02 PM MDTSevere Thunderstorm WarningBOUSedgwick28 min
Jun 22, 11:02 PM MDTSevere Thunderstorm WarningBOUPhillips28 min
Jun 22, 11:26 PM MDTSevere Thunderstorm WarningBOUSedgwick34 min
Jun 23, 4:01 PM MDTSevere Thunderstorm WarningBOUWeld29 min
Jun 23, 5:42 PM MDTSevere Thunderstorm WarningBOULogan, Morgan, Washington33 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.