Alert archive / Colorado / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 95, NWS Denver/Boulder, CO

June 24, 1996Weld County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 24, 1996, 6:35 PM MDT for Weld County, Colorado. It was in force for 15 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
Jun 24, 1996, 6:35 PM MDT (00:35 UTC)
Expired
Jun 24, 1996, 6:50 PM MDT
In force
15 min
Issued by
NWS Denver/Boulder, CO
Area
Whole counties

County Weld County, CO

The radar

The Cheyenne radar (KCYS), 75 km from the middle of the area, began a volume at 00:36 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 0.6 hours before the alert went out and 125 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 1996-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 732 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 1996-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 56 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
732 J/kg
Mixed-layer CIN
-9 J/kg
Mixed-layer LCL
3198 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
56 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

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 severe thunderstorm 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 24, 3:38 PM MDT, 2 hours 57 minutes before
COZ043-242230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
337 PM MDT MON JUN 24 1996

...STRONG THUNDERSTORM NORTHEAST OF DENVER...

AT 335 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A STRONG THUNDERSTORM 3 MILES WEST OF KEENESBURG ...OR ABOUT 24 MILES
SOUTH OF GREELEY.  THE STORM WAS MOVING TO THE EAST NORTHEAST AT
10 TO 15 MPH.

ALL PEOPLE IN SOUTHERN WELD COUNTY COLORADO INCLUIDING THE FOLLOWING
AREAS...
     HUDSON...KEENESBURG...PROSPECT VALLEY...RIVERSIDE RESERVOIR
     AND ROGGEN
SHOULD BE ALERT FOR SMALL HAIL...STRONG GUSTY WINDS...BRIEF HEAVY
RAIN AND FREQUENT DANGEROUS LIGHTNING FROM THIS STORM UNTIL 430 PM MDT
THIS AFTERNOON.

A SEVERE T6HUNDERSTORM WATCH REMAINS IN EFFECT FOR NORTH CENTRAL
AND EASTERN COLORADO UNTIL 900PM MDT.

GARD...WSFO DENVER
LAT...LON 4004 10416 4003 10462 4016 10466 4042 10427
Special weather statement, Jun 24, 6:04 PM MDT, 31 minutes before
COZ043-250030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
555 PM MDT MON JUN 24 1996

...STRONG THUNDERSTORM SOUTHCENTRAL WELD COUNTY...

AT 335 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A STRONG THUNDERSTORM JUST NORTH OF KEENESBURG. HAIL...BRIEF HEAVY RAIN
ARE POSSIBLE WITH THIS STORM.

SKYWARN SPOTTERS ALSO SPOTTED A BRIEF FUNNEL CLOUD AT 553 PM.

THIS STORM WAS MOVING NORTH TO NORTHEAST AT 15 MPH.

A SEVERFE THUNDERSTORM WATCH REMAINS IN EFFECT FOR NORTH CENTRAL
AND EASTERN COLORADO UNTIL 900PM MDT.

ENTREKIN
Special weather statement, Jun 24, 6:10 PM MDT, 25 minutes before
COZ043-250030-

SPECIAL WEATHER STATEMENT...CORRECTION FOR TIME...
NATIONAL WEATHER SERVICE DENVER CO
555 PM MDT MON JUN 24 1996

...STRONG THUNDERSTORM SOUTHCENTRAL WELD COUNTY...

AT 555 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A STRONG THUNDERSTORM JUST NORTH OF KEENESBURG. HAIL...BRIEF HEAVY RAIN
ARE POSSIBLE WITH THIS STORM.

SKYWARN SPOTTERS ALSO SPOTTED A BRIEF FUNNEL CLOUD AT 553 PM.

THIS STORM WAS MOVING NORTH TO NORTHEAST AT 15 MPH.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR NORTH CENTRAL
AND EASTERN COLORADO UNTIL 900PM MDT.

ENTREKIN

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 6:19 PM MDTTornado WarningBOUWeld31 min
Jun 24, 6:52 PM MDTTornado WarningBOUWeld38 min
Jun 24, 7:05 PM MDTSevere Thunderstorm WarningBOUWeld40 min
Jun 24, 7:34 PM MDTSevere Thunderstorm WarningBOUWeld51 min
Jun 24, 8:29 PM MDTSevere Thunderstorm WarningBOUWeld41 min
Jun 24, 8:43 PM MDTSevere Thunderstorm WarningBOULarimer32 min
Jun 24, 9:15 PM MDTSevere Thunderstorm WarningBOUMorgan, Weld30 min

Nearby

Severe Thunderstorm Warnings in Colorado, 1996Every severe thunderstorm warning 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; radar from the NEXRAD Level II archive.