Alert archive / Colorado / Tornado Warnings in 1993

Tornado Warning 7, NWS Denver/Boulder, CO

June 12, 1993Sedgwick County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at Jun 12, 1993, 7:35 PM MDT for Sedgwick County, Colorado. It was in force for 25 min.

The area

The counties it named.

The facts

Issued
Jun 12, 1993, 7:35 PM MDT (01:35 UTC)
Expired
Jun 12, 1993, 8:00 PM MDT
In force
25 min
Issued by
NWS Denver/Boulder, CO
Area
Whole counties

County Sedgwick County, CO

The nearest sounding before it

Denver, CO (KDEN), launched 00:00Z, 1.6 hours before the alert went out and 134 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 1993-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 907 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 1993-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -45 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
907 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
3541 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
-45 m²/s²
0-3 km storm-relative helicity
-35 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KDEN 130136
TORDEN
COC115-130200-
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
735 PM MDT SAT JUN 12 1993

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A TORNADO
WARNING EFFECTIVE UNTIL 800 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTIES

IN NORTHEASTERN COLORADO
     NORTHEASTERN SEDGWICK

INCLUDING THE FOLLOWING LOCATIONS
     JULESBURG

AT 733 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A POSSIBLE TORNADO ABOUT 3 MILES EAST OF JULESBURG ...OR ABOUT 57
MILES NORTHEAST OF STERLING.

THE STORM WAS MOVING EAST-SOUTHEAST AT 20 MILES AN HOUR.

THIS REPLACES THE SEVERE THUNDERSTORM WARNING FOR SEDGWICK COUNTY WHICH
HAD BEEN IN EFFECT UNTIL 745 PM.

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 COV`ER 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.


LAT...LON 4076 10206 4081 10230 4100 10238 4099 10205

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 12, 6:05 PM MDT, 1 hour 30 minutes before
COZ013-130100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
605 PM MDT SAT JUN 12 1993

...SEVERE THUNDERSTORMS JUST ACROSS THE COLORADO BORDER...

AT 600 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED TWO
THUNDERSTORMS JUST ACROSS THE COLORADO BORDER NEAR SYDNEY NEBRASKA.
THESE STORMS HAVE A HISTORY OF PRODUCING SEVERE WEATHER AND ARE EXPECTED
TO CLIP THE EXTREME NORTHEAST PART OF NORTHEAST COLORADO BETWEEN 600 AND
730 PM.

IF YOU ARE IN NORTHEAST LOGAN...SEDGWICK OR PHILLIPS COUNTIES...BE ON
THE LOOKOUT FOR THESE STORMS.  REMEMBER...A TORNADO WATCH REMAINS IN
EFFECT UNTIL 1000 PM MDT FOR PORTIONS OF NORTHEAST AND EAST-CENTRAL
COLORADO.

IF THREATENING WEATHER APPROACHES YOUR LOCATION...MOVE SWIFTLY TO A
PREDETERMINED PLACE OF SAFETY.  IN THE MEANTIME...STAY TUNED TO LOCAL
MEDIA...THE WEATHER CHANNEL...OR NOAA WEATHER RADIO FOR FURTHER
INFORMATION.

WOLF
Special weather statement, Jun 12, 6:06 PM MDT, 1 hour 29 minutes before
COZ013-130100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
605 PM MDT SAT JUN 12 1993

...SEVERE THUNDERSTORMS JUST ACROSS THE COLORADO BORDER...

AT 600 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED TWO
THUNDERSTORMS JUST ACROSS THE COLORADO BORDER NEAR SYDNEY NEBRASKA.
THESE STORMS HAVE A HISTORY OF PRODUCING SEVERE WEATHER AND ARE EXPECTED
TO CLIP THE EXTREME NORTHEAST PART OF NORTHEAST COLORADO BETWEEN 600 AND
730 PM.

IF YOU ARE IN NORTHEAST LOGAN...SEDGWICK OR PHILLIPS COUNTIES...BE ON
THE LOOKOUT FOR THESE STORMS.  REMEMBER...A TORNADO WATCH REMAINS IN
EFFECT UNTIL 1000 PM MDT FOR PORTIONS OF NORTHEAST AND EAST-CENTRAL
COLORADO.

IF THREATENING WEATHER APPROACHES YOUR LOCATION...MOVE SWIFTLY TO A
PREDETERMINED PLACE OF SAFETY.  IN THE MEANTIME...STAY TUNED TO LOCAL
MEDIA...THE WEATHER CHANNEL...OR NOAA WEATHER RADIO FOR FURTHER
INFORMATION.

WOLF
Special weather statement, Jun 12, 6:44 PM MDT, 51 minutes before
COZ013-130130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
645 PM MDT SAT JUN 12 1993

...SEVERE THUNDERSTORMS JUST ACROSS THE COLORADO BORDER...

AT 640 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS JUST ACROSS THE COLORADO BORDER EAST OF SYDNEY NEBRASKA.
THESE STORMS HAVE A HISTORY OF PRODUCING LARGE HAIL AND ARE EXPECTED TO
CLIP THE EXTREME NORTHEAST PART OF NORTHEAST COLORADO BETWEEN 645 AND
730 PM AS THEY MOVE EAST-SOUTHEAST AROUND 20 MILES AN HOUR.

IF YOU ARE IN NORTHEAST LOGAN...SEDGWICK OR PHILLIPS COUNTIES...BE ON
THE LOOKOUT FOR THESE STORMS.  REMEMBER...A TORNADO WATCH REMAINS IN
EFFECT UNTIL 1000 PM MDT FOR PORTIONS OF NORTHEAST AND EAST-CENTRAL
COLORADO.

IF THREATENING WEATHER APPROACHES YOUR LOCATION...MOVE SWIFTLY TO A
PREDETERMINED PLACE OF SAFETY.  IN THE MEANTIME...STAY TUNED TO LOCAL
MEDIA...THE WEATHER CHANNEL...OR NOAA WEATHER RADIO FOR FURTHER
INFORMATION.

WOLF
Special weather statement, Jun 12, 6:45 PM MDT, 50 minutes before
COZ013-130130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
645 PM MDT SAT JUN 12 1993

...SEVERE THUNDERSTORMS JUST ACROSS THE COLORADO BORDER...

AT 640 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS JUST ACROSS THE COLORADO BORDER EAST OF SYDNEY NEBRASKA.
THESE STORMS HAVE A HISTORY OF PRODUCING LARGE HAIL AND ARE EXPECTED TO
CLIP THE EXTREME NORTHEAST PART OF NORTHEAST COLORADO BETWEEN 645 AND
730 PM AS THEY MOVE EAST-SOUTHEAST AROUND 20 MILES AN HOUR.

IF YOU ARE IN NORTHEAST LOGAN...SEDGWICK OR PHILLIPS COUNTIES...BE ON
THE LOOKOUT FOR THESE STORMS.  REMEMBER...A TORNADO WATCH REMAINS IN
EFFECT UNTIL 1000 PM MDT FOR PORTIONS OF NORTHEAST AND EAST-CENTRAL
COLORADO.

IF THREATENING WEATHER APPROACHES YOUR LOCATION...MOVE SWIFTLY TO A
PREDETERMINED PLACE OF SAFETY.  IN THE MEANTIME...STAY TUNED TO LOCAL
MEDIA...THE WEATHER CHANNEL...OR NOAA WEATHER RADIO FOR FURTHER
INFORMATION.

WOLF
Special weather statement, Jun 12, 6:52 PM MDT, 43 minutes before
COZ013-130130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
650 PM PM MDT SAT JUN 12 1993

...TORNADO WATCH CANCELLED IN SOUTHEAST COLORADO...CONTINUED UNTIL
   10 PM IN NORTHEAST COLORADO...

THE NATIONAL WEATHER SERVICE HAS CANCELLED THE TORNADO WATCH IN
SOUTHEAST COLORADO IN PROWERS...KIOWA AND CHEYENNE COUNTIES.
THE WATCH CONTINUES IN KIT CARSON...YUMA...EASTERN WASHINGTON...
PHILLIPS SEDGEWICK AND LOGAN COUNTIES.  THERE IS A HIGH THREAT
OF THUNDERSTORMS CONTAINING LARGE HAIL AND POSSIBLE TORNADOES
AS SEVERE THUNDERSTORMS MOVE FROM THE NEBRASKA PANHANDLE INTO
NORTHEAST COLORADO.

BG
Special weather statement, Jun 12, 6:52 PM MDT, 43 minutes before
COZ013-130130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
650 PM PM MDT SAT JUN 12 1993

...TORNADO WATCH CANCELLED IN SOUTHEAST COLORADO...CONTINUED UNTIL
   10 PM IN NORTHEAST COLORADO...

THE NATIONAL WEATHER SERVICE HAS CANCELLED THE TORNADO WATCH IN
SOUTHEAST COLORADO IN PROWERS...KIOWA AND CHEYENNE COUNTIES.
THE WATCH CONTINUES IN KIT CARSON...YUMA...EASTERN WASHINGTON...
PHILLIPS SEDGEWICK AND LOGAN COUNTIES.  THERE IS A HIGH THREAT
OF THUNDERSTORMS CONTAINING LARGE HAIL AND POSSIBLE TORNADOES
AS SEVERE THUNDERSTORMS MOVE FROM THE NEBRASKA PANHANDLE INTO
NORTHEAST COLORADO.

BG

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 6:58 PM MDTSevere Thunderstorm WarningBOUSedgwick47 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.