Alert archive / Colorado / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 40, NWS Denver/Boulder, CO

June 15, 1992Morgan County, Washington County, Yuma County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 15, 1992, 12:23 AM MDT for Morgan County, Washington County, Yuma County, Colorado. It was in force for 52 min.

The area

The counties it named.

The facts

Issued
Jun 15, 1992, 12:23 AM MDT (06:23 UTC)
Expired
Jun 15, 1992, 1:15 AM MDT
In force
52 min
Issued by
NWS Denver/Boulder, CO
Area
Whole counties

Counties Morgan County, CO, Washington County, CO, Yuma County, CO

The nearest sounding before it

Denver, CO (KDEN), launched 00:00Z, 6.4 hours before the alert went out and 24 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 1992-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 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 1992-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 130 square meters per square second.19395878Sfc1 km3 km6 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
3075 m above ground
0-6 km bulk shear
58 kt
0-1 km storm-relative helicity
130 m²/s²
0-3 km storm-relative helicity
168 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 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 14, 6:58 PM MDT, 5 hours 25 minutes before
COZ011-012-150200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
658 PM MDT SUN JUN 14 1992

...THUNDERSTORMS INTENSIFY OVER WESTMINSTER...NORTH ARVADA...

AT 658 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR WAS SHOWING
THUNDERTORMS INTENSIFYING OVER WESTMINSTER AND NORTH ARVADA.  RADAR WAS
SHOWING GUSTY WINDS AND SMALL HAIL AT THIS TIME.

A TORNADO WATCH IS IN EFFECT FOR THE FRONT RANGE UNTIL 900 PM MDT.
TORNADOES ARE POSSIBLE WITH THIS STORM...AS WELL AS OTHER STORMS
DEVELOPING THIS EVENING.

LISTEN CLOSELY FOR LATER STATEMENTS OR WARNINGS.

MCQUEEN
Special weather statement, Jun 14, 7:27 PM MDT, 4 hours 56 minutes before
COZ011-150200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
725 PM MDT SUN JUN 14 1992

...STRONG THUNDERSTORMS OVER NORTHERN LARIMER COUNTY...

AT 722 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN AREA
OF STRONG THUNDERSTORMS OVER NORTHERN LARIMER COUNTY.  THE STRONGEST
THUNDERSTORMS WERE LOCATED BETWEEN RUSTIC AND LIVERMORE...ABOUT 20 MILES
NORTHWEST OF FORT COLLINGS.  THESE STORMS WERE MOVING EAST NORTHEAST
ABOUT 25 MILES AN HOUR.

A TORNADO WATCH IS IN EFFECT FOR THE FRONT RANGE UNTIL 900 PM MDT.
HAIL...HEAVY RAIN AND TORNADOES ARE POSSIBLE WITH THIS STORM...AS WELL
AS OTHER STORMS DEVELOPING THIS EVENING.

LISTEN CLOSELY FOR LATER STATEMENTS OR WARNINGS.

WOLF
Special weather statement, Jun 14, 7:33 PM MDT, 4 hours 50 minutes before
COZ011-150230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
732 PM MDT SUN JUN 14 1992

...STRONG THUNDERSTORMS CONTINUE OVER NORTHERN METRO AREA...
...WARNING EXPIRED AT 730 PM...

THUNDERSTORMS HAVE WEAKENED SLIGHTLY OVER THE NORTHERN METRO AREA AS OF
732 PM.  THE STRONGEST PART OF THE STORM WAS IN EXTREME SOUTHWEST WELD
COUNTY AT 732...NEAR ERIE AND DACONA.  SPOTTERS WERE REPORTING VERY
HEAVY RAIN AND SMALL HAIL AT I-25 AND HIGHWAY 7 AT 729 PM...THIS IS
ABOUT 5 MILES NORTH OF NORTHGLENN.

THIS STORM WAS MOVING TO THE NORTHEAST AT 15 MPH.

A TORNADO WATCH REMAINS IN EFFECT FOR THE FRONT RANGE UNTIL 900 PM MDT.
HAIL...HEAVY RAIN AND TORNADOES ARE POSSIBLE WITH THIS ST*ORM...AS WELL
AS OTHER STORMS DEVELOPING THIS EVENING.

LISTEN CLOSELY FOR LATER STATEMENTS OR WARNINGS.

MCQUEEN
Special weather statement, Jun 14, 8:03 PM MDT, 4 hours 20 minutes before
COZ011-150300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
802 PM MDT SUN JUN 14 1992

...INTENSE THUNDERSTORMS MOVE INTO SOUTHERN WELD COUNTY...

THE EARLIER SEVERE THUNDERSTORMS IN THE NORTHERN DENVER METRO AREA WERE
IN SOUTHERN WELD COUNTY AT 802 PM...MAINLY BETWEEN PLATTEVILLE AND
ROGGEN.  THE MOST INTENSE PART WAS NEAR MILTON RESERVOIR...ABOUT 12
MILES SOUTH OF GREELEY.

THESE THUNDERSTORMS WERE MOVING TO THE NORTHEAST AT] 20 MPH.

A TORNADO WATCH REMAINS IN EFFECT FOR THE FRONT RANGE AND NORTHEAST
PLAINS UNTIL 900 PM MDT.  HAIL...HEAVY RAIN AND TORNADOES ARE POSSIBLE
WITH THESE STORMS THIS EVENING.

MCQUEEN
Special weather statement, Jun 14, 10:31 PM MDT, 1 hour 52 minutes before
COZ011-012-150500-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
1030 PM MDT SUN JUN 14 1992

...WARNING IN WEST CENTRAL WELD COUNTY EXPIRED AT 1030 PM...

THE STORM THAT WAS EARLIER OVER LARIMER COUNTY SOUTH AND EAST OF FT
COLLINS...AND MOVED INTO WEST CENTRAL WELD COUNTY NORTH OF AULT HAD
WEAKENED CONSIDERABLY SINCE 1015 PM.

THE WARNING HAS EXPIRED AS OF 1030 PM.

A TORNADO WATCH IS STILL IN EFFECT JUST EAST OF THE AREA TIL 4 AM MDT.

MCQUEEN

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 14, 6:26 PM MDTTornado WarningBOUWeld34 min
Jun 14, 6:59 PM MDTTornado WarningBOUWeld31 min
Jun 14, 7:00 PM MDTSevere Thunderstorm WarningBOUAdams, Jefferson30 min
Jun 14, 7:00 PM MDTSevere Thunderstorm WarningBOUBoulder30 min
Jun 14, 7:30 PM MDTSevere Thunderstorm WarningBOUMorgan, Weld30 min
Jun 14, 7:44 PM MDTSevere Thunderstorm WarningBOUWeld46 min
Jun 14, 8:22 PM MDTSevere Thunderstorm WarningBOUWeld38 min
Jun 14, 8:33 PM MDTSevere Thunderstorm WarningBOULogan, Morgan, Weld27 min
Jun 14, 9:02 PM MDTSevere Thunderstorm WarningBOULogan28 min
Jun 14, 9:03 PM MDTSevere Thunderstorm WarningBOUWeld42 min
Jun 14, 9:09 PM MDTSevere Thunderstorm WarningBOUWeld36 min
Jun 14, 9:44 PM MDTSevere Thunderstorm WarningBOULarimer, Weld46 min
Jun 14, 9:46 PM MDTSevere Thunderstorm WarningBOUWeld29 min
Jun 14, 10:15 PM MDTSevere Thunderstorm WarningBOULogan, Weld45 min
Jun 14, 10:58 PM MDTSevere Thunderstorm WarningBOULogan47 min
Jun 14, 10:58 PM MDTSevere Thunderstorm WarningBOUWeld27 min
Jun 14, 11:45 PM MDTSevere Thunderstorm WarningBOULogan30 min
Jun 15, 12:23 AM MDTSevere Thunderstorm WarningBOULogan, Phillips, Sedgwick52 min
Jun 15, 1:17 AM MDTSevere Thunderstorm WarningBOULogan, Phillips, Sedgwick43 min

Nearby

Severe Thunderstorm Warnings in Colorado, 1992Every severe thunderstorm warning in 1992

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.