Alert archive / Colorado / Tornado Warnings in 1996

Tornado Warning 32, NWS Denver/Boulder, CO

July 7, 1996Lincoln County, Washington County, Colorado

NWS Denver/Boulder, CO issued this tornado warning at Jul 7, 1996, 3:55 PM MDT for Lincoln County, Washington County, Colorado. It was in force for 35 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 7, 1996, 3:55 PM MDT (21:55 UTC)
Expired
Jul 7, 1996, 4:30 PM MDT
In force
35 min
Issued by
NWS Denver/Boulder, CO
Area
Whole counties

Counties Lincoln County, CO, Washington County, CO

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 9.9 hours before the alert went out and 45 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 1996-07-07Temperature 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 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 1996-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.193958Sfc1 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
2098 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
22 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 7, 11:26 AM MDT, 4 hours 29 minutes before
COZ030-032>050-080600-

SIGNIFICANT WEATHER OUTLOOK FOR NORTHEAST AND NORTH CENTRAL COLORADO
NATIONAL WEATHER SERVICE DENVER CO
1130 AM MDT SUN JUL 07 1996

THIS OUTLOOK PERTAINS TO THE FOLLOWING COLORADO COUNTIES

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

SYNOPSIS: SEVERAL PARAMETERS COMING TOGETHER TODAY FOR THE POTENTIAL
OF SEVERE WEATHER ACROSS NORTHEASTERN COLORADO.  SURFACE MOISTURE
REMAINS HIGH THIS MORNING AS LOW LEVEL SOUTHEAST WINDS CONTINUE TO
PUMP HIGH DEWPOINT AIR ACROSS THE NORTHEAST PLAINS.  A DENVER
CYCLONE HAS ALSO FORMED THIS MORNING RESULTING IN A BOUNDARY SETTING
UP ACROSS THE PALMER DIVIDE AND STRETCHING NORTHEASTWARD OVER
EASTERN ARAPAHOE...ADAMS...AND WESTERN WASHINGTON COUNTIES. THIS
BOUNDARY WILL LIKELY BE THE PRIMARAY FOCUS FOR THUNDERSTORMS BY MID
AFTERNOON.  THUNDERSTORMS WILL BEGIN FIRING OVER THE MOUNTAINS AND
HIGHER TERRAIN AREAS AFTER 1230 PM.

IN ADDITION...A WEAK UPPER LEVEL DISTURBANCE WILL BRUSH ACROSS
NORTHERN COLORADO THIS AFTERNOON TO ENHANCE THUNDERSTORM DEVELOPMENT
OVER MUCH OF THE DISTRICT.

SPOTTER ACTIVATION MAY BE NECESSARY THIS AFTERNOON...AS THESE STORMS
APPROACH SEVERE LIMITS WITH HAIL...HEAVY RAIN...AND WIND GUSTS TO 50
MPH.

ENTREKIN
Special weather statement, Jul 7, 1:56 PM MDT, 1 hour 59 minutes before
COZ041-045-046-049-072100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
145 PM MDT SUN JUL 07 1996

...THUNDERSTORMS DEVELOPING OVER THE PALMER DIVIDE...

AT 150 PM...WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS
DEVELOPING OVER SOUTHERN DOUGLAS AND WESTERN ELBERT COUNTIES. THESE
STORMS ARE GROWING AND COULD BECOME SEVERE DURING THE NEXT HOUR.

THESE STORMS ARE CAPABLE OF PRODUCING HAIL...HEAVY RAIN AND GUSTY
WINDS TzO 55 MPH. THERE IS ALSO THE POTENTIAL FOR TORNADOES WITH
THESE STORMS.

IF THUNDERSTORMS APPROACH YOUR AREA...TAKE SHELTER IMMEDIATELY.
STAY TUNED TO FURTHER DEVELOPMENTS ON THESE STORMS.

ENTREKIN

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 6, 6:18 PM MDTSevere Thunderstorm WarningBOUAdams, Arapahoe32 min
Jul 6, 7:20 PM MDTSevere Thunderstorm WarningBOUBoulder, Larimer, Weld40 min
Jul 6, 8:03 PM MDTSevere Thunderstorm WarningBOUAdams, Denver37 min
Jul 6, 8:03 PM MDTSevere Thunderstorm WarningBOUWeld37 min
Jul 6, 8:57 PM MDTSevere Thunderstorm WarningBOUWashington33 min
Jul 6, 9:28 PM MDTSevere Thunderstorm WarningBOUAdams, Morgan, Washington32 min
Jul 6, 9:40 PM MDTSevere Thunderstorm WarningBOUAdams, Morgan, Washington35 min
Jul 7, 3:08 PM MDTSevere Thunderstorm WarningBOUElbert37 min
Jul 7, 3:17 PM MDTSevere Thunderstorm WarningBOUWashington43 min
Jul 7, 3:29 PM MDTTornado WarningBOUElbert31 min
Jul 7, 4:12 PM MDTTornado WarningBOUWashington33 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.