Alert archive / Colorado / Tornado Warnings in 1996

Tornado Warning 44, NWS Denver/Boulder, CO

July 10, 1996Logan County, Weld County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at Jul 10, 1996, 6:26 PM MDT for Logan County, Weld County, Colorado. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 10, 1996, 6:26 PM MDT (00:26 UTC)
Expired
Jul 10, 1996, 7:00 PM MDT
In force
34 min
Issued by
NWS Denver/Boulder, CO
Area
Whole counties

Counties Logan County, CO, Weld County, CO

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 0.4 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 00:00Z on 1996-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 261 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 1996-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 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
261 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
2758 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
98 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KDEN 110027
TORDEN
COC075-123-110100-

BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
626 PM MDT WED JUL 10 1996

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 700 PM MDT FOR PEOPLE IN THE FOLLOWING COUNTIES

IN NORTHEAST COLORADO
     NORTHEASTERN WELD AND NORTHWESTERN LOGAN

AT 617 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM WITH A POSSIBLE TORNADO OVER EXTREME NORTHEASTERN
WELD COUNTY...OR ABOUT 34 MILES NORTHWEST OF STERLING.

AIR FORCE PERSONNEL AT A MISSILE SILO IN WELD COUNTY REPORTED MARBLE 
SIZE HAIL WITH THIS THUNDERSTORM.

THE THUNDERSTORM WAS MOVING SOUTH AT 10 MILES PER HOUR.

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.

LAT...LON 4067 10346 4069 10385 4097 10398 4098 10360

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, Jul 10, 5:16 PM MDT, 1 hour 10 minutes before
COZ042-048-102345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
511 PM MDT WED JUL 10 1996

...THUNDERSTORM IN NEBRASKA MOVING SOUTHEAST...

AT 515 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM 22 MILES NORTHWEST OF WESTPLAINS...OR ABOUT 43 MILES
NORTHWEST OF STERLING.

THE STORM WAS MOVING TO THE SOUTH SOUTHEAST AT 15 MILES PER HOUR.

PERSONS IN NORTHEAST WELD AND EXTREME NORTHWEST LOGAN COUNTIES
SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER AND MOVE TO A PLACE
OF SAFETY IF BAD WEATHER APPROACHES.
ET
Special weather statement, Jul 10, 5:56 PM MDT, 30 minutes before
COZ042-048-110000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
552 PM MDT WED JUL 10 1996

...THUNDERSTORM IN
     NORTHEASTERN WELD AND NORTHWESTERN LOGAN COUNTIES...

AT 548 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM OVER EXTREME NORTHEASTERN WELD COUNTY...OR ABOUT 36
MILES NORTHWEST OF STERLING.

THE STORM WAS MOVING SOUTH AT 15 MILES PER HOUR.  IF THIS STORM
MAINTAINS ITS PRESENT TRACK AND SPEED IT WILL BE ABOUT 9 MILES EAST
OF KAUFMAN AND 15 MILES NORTH OF STONEHAM COLORADO AT 630 PM MDT.

SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER AND MOVE TO A PLACE
OF SAFETY IF BAD WEATHER APPROACHES.

DANGEROUS LIGHTNING...SMALL HAIL...BRIEF \HEAVY RAIN...AND GUSTY WINDS
WILL OCCUR WITH THIS STORM.
Special weather statement, Jul 10, 5:57 PM MDT, 29 minutes before
COZ042-048-110100-

SPECIAL WEATHER STATEMENT...CORRECTION FOR TIME IN PARAGRAPH 2
NATIONAL WEATHER SERVICE DENVER CO
552 PM MDT WED JUL 10 1996

...THUNDERSTORM IN
     NORTHEASTERN WELD AND NORTHWESTERN LOGAN COUNTIES...

AT 548 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM OVER EXTREME NORTHEASTERN WELD COUNTY...OR ABOUT 36
MILES NORTHWEST OF STERLING.

THE STORM WAS MOVING SOUTH AT 15 MILES PER HOUR.  IF THIS STORM
MAINTAINS ITS PRESENT TRACK AND SPEED IT WILL BE ABOUT 9 MILES EAST
OF KAUFMAN AND 15 MILES NORTH OF STONEHAM COLORADO AT 7 PM MDT.

SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER AND MOVE TO A PLACE
OF SAFETY IF BAD WEATHER APPROACHES.

DlANGEROUS LIGHTNING...SMALL HAIL...BRIEF HEAVY RAIN...AND GUSTY WINDS
WILL OCCUR WITH THIS STORM.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 10, 8:12 PM MDTSevere Thunderstorm WarningBOUWeld63 min

Nearby

Tornado Warnings in Colorado, 1996Every tornado warning in 1996Tornadoes in 1996

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.