Alert archive / Colorado / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 2, NWS Denver/Boulder, CO

June 4, 1992Logan County, Phillips County, Sedgwick County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 4, 1992, 8:43 PM MDT for Logan County, Phillips County, Sedgwick County, Colorado. It was in force for 32 min.

The area

The counties it named.

The facts

Issued
Jun 4, 1992, 8:43 PM MDT (02:43 UTC)
Expired
Jun 4, 1992, 9:15 PM MDT
In force
32 min
Issued by
NWS Denver/Boulder, CO
Area
Whole counties

Counties Logan County, CO, Phillips County, CO, Sedgwick County, CO

The nearest sounding before it

Denver, CO (KDEN), launched 00:00Z, 2.7 hours before the alert went out and 109 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 1992-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 227 joules per kilogram.LCLLFCEL10008507005003002001001 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 1992-06-05The 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
227 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
2536 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
45 m²/s²
0-3 km storm-relative helicity
83 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.9

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KDEN 050247
SVRDEN
COC075-095-115-050315-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
843 PM MDT THU JUN 04 1992

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL 915 PM MDT FOR PEOPLE IN
THE FOLLOWING COUNTIES

IN NORTHEASTERN COLORADO
     EXTREME NORTHEASTERN LOGAN...PHILLIPS AND WESTERN SEDGWICK

INCLUDING THE FOLLOWING LOCATIONS
     FAIRFIELD...HOLYOKE...MARKS BUTTE...PAOLI...SEDGWICK AND
     WAGES

AT 843 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM 6 MILES WEST OF SEDGWICK...OR ABOUT 36
MILES NORTHEAST OF STERLING.

THE STORM WAS MOVING SOUTHEAST AT 25 MILES AN HOUR.

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY
SHELTER AWAY FROM CREEK BEDS AND OTHER FLOOD-PRONE AREAS.
REMEMBER...A SEVERE THUNDERSTORM CAN PRODUCE LARGE DAMAGING
HAIL...DAMAGING WINDS OVER 60 MPH...DEADLY LIGHTNING...AND VERY
HEAVY RAIN.

INTENSE LIGHTNING IS REPORTED WITH THIS STORM.  IF OUTDOORS...
STAY AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES.  MOVE
INDOORS IF POSSIBLE.  WHEN INDOORS...STAY AWAY FROM WINDOWS AND
DOORS AND AVOID USING TELEPHONES UNLESS IT IS AN EMERGENCY.
TRY TO UNPLUG UNNECESSARY ELECTRICAL APPLIANCES BEFORE THE
THUNDERSTORM APPROACHES.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT
AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
FORECAST OFFICE IN DENVER.

CUOCO
LAT...LON 4057 10217 4050 10245 4094 10272 4099 10253

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 4, 5:11 PM MDT, 3 hours 32 minutes before
COZ011-012-050000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
512 PM MDT THU JUN 4 1992

AT 509 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG
THUNDERSTORM IN SOUTH-CENTRAL ADAMS COUNTY ABOUT 15 MILES EAST NORTHEAST
OF BENNETT.  THIS STORM WILL PRODUCE LOCALLY HEAVY RAIN...SMALL HAIL AND
GUSTY WINDS AS IT MOVES EAST AT 25 MILES AN HOUR INTO EASTERN ADAMS
COUNTY.

IF YOU LIVE IN EASTERN ADAMS COUNTY AND ARE IN THE PATH OF THIS STORM...
MOVE TO A PLACE OF SAFETY IN THREATENING WEATHER APPROACHES.

WOLF
Special weather statement, Jun 4, 7:19 PM MDT, 1 hour 24 minutes before
COZ012-050230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
720 PM MDT THU JUN 4 1992

...STRONG THUNDERSTORMS OVER WELD AND LOGAN COUNTY...

AT 720 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
STRONG THUNDERSTORMS OVER NORTHEAST WELD COUNTY AND NORTHWEST LOGAN
COUNTY.  THE STRONGEST STORM WAS LOCATED 5 MILES EAST OF GROVER...
40 MILES NORTHEAST OF GREELEY...AND WAS MOVING SOUTHEAST AT 25 MILES AN
HOUR.

THESE STORMS WILL PRODUCE LOCALLY HEAVY RAIN...SMALL HAIL AND GUSTY
WINDS AS THEY MOVE THROUGH STERLING ABOUT 8 PM.

IF YOU LIVE IN NORTHEAST WELD OR NORTHWEST LOGAN COUNTIES...AND ARE
IN THE PATH OF THIS STORM...MOVE TO A PLACE OF SAFETY IF THREATENING
WEATHER APPROACHES.

CUOCO
Special weather statement, Jun 4, 7:53 PM MDT, 50 minutes before
COZ013-050230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
755 PM MDT THU JUN 4 1992

...STRONG THUNDERSTORM MOVING TOWARD THE NORTHEAST CORNER OF COLORADO...

AT 750 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED A VERY
STRONG THUNDERSTORM IN THE NEBRASKA PANHANDLE MOVING TOWARDS THE
NORTHEAST CORNER OF COLORADO.  THE STORM WAS LOCATED IN CHEYENNE
COUNTY...NEBRASKA AND MOVING SOUTHEAST AT 20 MPH.  EARLIER THIS EVENING
THIS STORM PRODUCED GOLF BALL SIZED HAIL.  THE STORM SHOULD MOVE INTO
NORTHEAST LOGAN COUNTY AND WESTERN SEDGWICK COUNTY IN THE NEXT HALF
HOUR.

THIS STORM COULD PRODUCE LOCALLY HEAVY RAIN...HAIL AND GUSTY
WINDS AS IT MOVES THROUGH SEDGWICK COUNTY.

IF YOU LIVE IN NORTHEAST LOGAN OR WESTERN SEDGWICK COUNTIES...AND ARE
IN THE PATH OF THIS STORM...MOVE TO A PLACE OF SAFETY IF THREATENING
WEATHER APPROACHES.

DANKERS

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 4, 8:00 PM MDTSevere Thunderstorm WarningBOULogan, Weld30 min
Jun 4, 9:38 PM MDTSevere Thunderstorm WarningBOUWashington37 min
Jun 5, 12:46 PM MDTSevere Thunderstorm WarningBOUAdams, Denver, Jefferson14 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.