Alert archive / Colorado / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 65, NWS Denver/Boulder, CO

June 26, 1992Sedgwick County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 26, 1992, 4:40 PM MDT for Sedgwick County, Colorado. It was in force for 35 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 26, 1992, 4:40 PM MDT (22:40 UTC)
Expired
Jun 26, 1992, 5:15 PM MDT
In force
35 min
Issued by
NWS Denver/Boulder, CO
Area
Whole counties

County Sedgwick County, CO

What was reported inside it

TimeReportWhereRemark
Jun 26, 4:40 PM MDTHail 1Sedgwick, CO
Jun 26, 5:00 PM MDTHail 1Sedgwick, CO

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 10.7 hours before the alert went out and 134 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 1992-06-26Temperature 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 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 1992-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 29 square meters per square second.1939Sfc1 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
1798 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
29 m²/s²
0-3 km storm-relative helicity
59 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 26, 11:31 AM MDT, 5 hours 9 minutes before
COZ002-004-011-012-013-270000-

SIGNIFICANT WEATHER OUTLOOK FOR NORTHEAST COLORADO
NATIONAL WEATHER SERVICE DENVER CO
1130 AM MDT FRI JUN 26 1992

THIS OUTLOOK PERTAINS TO THE FOLLOWING COLORADO COUNTIES

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

COOLER AIR HAS MOVED ACROSS THE NORTHEAST THIS MORNING.  MOIST UPSLOPE
FLOW REMAINS IN PLACE AT THE LOWER ELEVATIONS...AND IS EXPECTED TO
CONTINUE THROUGH THE DAY.  THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS
THE MOUNTAINS EARLY THIS AFTERNOON AS AN UPPER LEVEL SYSTEM MOVES ACROSS
THE STATE.  THESE STORMS WILL MOVE ONTO THE PLAINS AS THE AFTERNOON
WEARS ON.  HEAVY RAIN WILL ACCOMPANY THE STRONGER STORMS AND COULD CAUSE
FLOODING PROBLEMS...ESPECIALLY ACROSS LARIMER AND WELD COUNTIES.  SMALL
HAIL AND GUSTY WINDS ARE ALSO POSSIBLE ALONG WITH FREQUENT LIGHTNING.

SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON DUE TO THE POTENTIAL FOR
FLOODING PROBLEMS FROM THE HEAVY RAIN.

LESZCYNSKI
Special weather statement, Jun 26, 12:35 PM MDT, 4 hours 5 minutes before
COZ02-04-011-261930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
1235 PM MDT FRI JUN 26 1992

...THUNDERSTORMS DEVELOPING ALONG FRONT RANGE...

AT 1230 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED SCATTERED
THUNDERSTORMS ALONG THE FRONT RANGE.  THE STRONGEST STORMS WERE BETWEEN
ROLLINSVILLE AND BLACK HAWK IN GILPIN COUNTY ALONG HIGHWAY 119...OR
ABOUT 30 MILES WEST OF DENVER...AND IN SOUTHERN DOUGLAS COUNTY SOUTH OF
LARKSPUR...OR 40 MILES SOUTH OF DENVER.  OTHER STORMS WERE BETWEEN
IDAHO SPRINGS IN SOUTHEAST CLEAR CREEK COUNTY AND BUFFALO CREEK IN
SOUTHWEST JEFFERSON COUNTY...OR ABOUT 25 MILES SOUTHWEST OF DENVER...AND
SOUTH OF POUDRE PARK IN LARIMER COUNTY...OR ABOUT 20 MILES WEST OF FORT
COLLINS.  THE STORMS WERE MOVING EAST NORTHEAST AT 15 TO 20 MPH.

BRIEF HEAVY RAIN...GUSTY WINDS...SMALL HAIL AND FREQUENT LIGHTNING CAN
BE EXPECTED WITH THE STORMS.  PEOPLE ALONG THE FRONT RANGE SHOULD BE
ALERT FOR THE5SE STORMS.  LOCAL FLOODING IS POSSIBLE.  BE WARY OF WATER
ON ROADWAYS.  THE WATER MAY BE DEEPER THAN YOU THINK.

CONTINUE TO MONITOR NOAA WEATHER RADIO OR LOCAL NEWS MEDIA FOR FURTHER
STATEMENTS AND POSSIBLE WARNINGS.

LESZCYNSKI
Special weather statement, Jun 26, 1:57 PM MDT, 2 hours 43 minutes before
COZ002-004-011-262030-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
155 PM MDT FRI JUN 26 1992

...THUNDERSTORMS CONTINUE TO DEVELOP ALONG FRONT RANGE...

AT 150 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED STRONG
THUNDERSTORMS JUST WEST OF POUDRE PARK IN LARIMER COUNTY...OR 20 MILES
WEST OF FORT COLLINS AND IN BETWEEN WARD IN BOULER COUNTY AND GEORGETOWN
IN CLEAR CREEK COUNTY...OR ABOUT 40 MILES WEST NORTHWEST OF DENVER.
THE STORMS WERE MOVING NORTHEAST AT 15 MPH.

RADAR ESTIMATED ONE HALF INCH AN HOUR RAINFALL RATE WITH THESE STORMS.

HEAVY RAIN...SMALL HAIL AND GUSTY WINDS CAN BE EXPECTED WITH THE STORMS.
DUE TO THE RECENT HEAVY RAINS IN THIS AREA...IT WON'T TAKE MUCH MORE
RAIN TO CAUSE LOCAL FLOODING.  BE WARY OF WATER ON ROADWAYS.  THE
WATER MAY BE DEEPER THAN YOU THINK.

A TORNADO WATCH IS IN EFFECT FOR THE ENTIRE FRONT RANGE AND PARTS OF
EASTERN COLORADO UNTIL 8PM MDT TONIGHT.  CONTINUE TO MONI'TOR NOAA
WEATHER RADIO OR LOCAL NEWS MEDIA FOR FURTHER STATEMENTS AND POSSIBLE
WARNINGS.

LESZCYNSKI
Special weather statement, Jun 26, 3:47 PM MDT, 53 minutes before
COZ002-004-011-012-262245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
345 PM MDT FRI JUN 26 1992

...THUNDERSTORMS CONTINUE IN EASTERN COLORADO...

AT 340 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED SCATTERED
SHOWERS AND THUNDERSTORMS OVER PORTIONS OF EASTERN COLORADO.  THE
STRONGEST STORMS WERE IN WEST OF LAST CHANCE IN WASHINGTON COUNTY OR
60 MILES SOUTH OF STERLING...NORTH OF BRIGGSDALE IN WELD COUNTY OR
40 MILES EAST OF FORT COLLINS...NORTH OF ESTES PARK IN LARIMER COUNTY
...AND WEST OF LARKSPUR IN DOUGLAS COUNTY...OR ABOUT 35 MILES SOUTH OF
DENVER.  MOVEMENT OF THE SHOWER AND THUNDERSTORM ACTIVITY WAS NORTHEAST
AT 15 MPH.

HEAVY RAIN...SMALL HAIL AND GUSTY WINDS CAN BE EXPECTED WITH THE
STRONGER STORMS.  FLOODING OF ROADAYS AND LOW-LYING AREAS IS POSSIBLE.
BE WARY OF WATER ON ROADWAYS.  THE WATER MAY BE DEEPER THAN YOU THINK.

A TORNADO WATCH IS IN EFFECT FOR THE ENTIRE FRONT RANGE AND PARTS OF
EASTERN COLORADO UNTIL 8PM MDT TONIGHT.  CONTINUE TO MONITOR NOAA
WEATHER RADIO OR LOCAL NEWS MEDIA FOR FURTHER STATEMENTS AND POSSIBLE
WARNINGS.

LESZCYNSKI
Special weather statement, Jun 26, 4:30 PM MDT, 10 minutes before
COC115-262300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
430 PM MDT FRI JUN 26 1992

...A STRONG THUNDERSTORM WAS MOVING SLOWLY OVER CENTRAL SEDGWICK
COUNTY...

AT 325 PM MDT DOPPLER RADAR CONTINUED TO SHOW A STRONG STORM NEAR
JUSLESBURG...55 MILES NORTHEAST OF STERLING.  HALF-INCH HAIL WAS
REPORTED AROUND 415 PM BY THE SEDGWICK COUNTY SHERIFF'S OFFICE.

THE STORM WAS DRIFTING SLOWLY SOUTHEAST AND WILL PRODUCE HEAVY RAIN AND
SOME HAIL OVER THE CENTRAL AND EASTERN PARTS OF THE COUNTY.

RUFF
Special weather statement, Jun 26, 4:31 PM MDT, 9 minutes before
COZ011-262315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
430 PM MDT FRI JUN 26 1992

...STRONG THUNDERSTORMS OVER DOUGLAS AND ADAMS COUNTIES...

AT 425 PM MDT...NATIONAL WEATHER SERVICE DOPPLER RADAR SHOWED STRONG
THUNDERSTORMS OVER DOUGLAS AND ARAPAHOE COUNTIES.  ONE STORM WAS ALONG
THE ADAMS...WASHINGTON COUNTY LINE MOVING NORTH AT 15 MPH.  OTHER STRONG
STORMS WERE IN DOUGLAS COUNTY NEAR NEAR PARKER...OR 20 MILES SOUTHEAST
OF DENVER...AND JUST WEST OF CASTLE ROCK OR 30 MILES SOUTH OF DENVER.
THE STORMS IN DOUGLAS COUNTY WERE MOVING NORTHEAST AT 15 MPH.

PEOPLE IN NORTHWEST DOUGLAS COUNTY AND NORTHERN ADAMS COUTY SHOULD
BE ALERT FOR THREATENING WEATHER...AND BE PREPARED TO MOVE TO A
PLACE OF SAFETY IF THUNDERSTORMS APPROACH.

HEAVY RAIN...SMALL HAIL AND GUSTY WINDS CAN BE EXPECTED WITH THESE
STRONGER STORMS.  FLOODING OF ROADAYS AND LOW-LYING AREAS IS POSSIBLE.
BE WARY OF WATER ON ROADWAYS.  THE WATER MAY BE DEEPER THAN YOU THINK.

THE TORNADO WATCH IS NO LONGER IN EFFECT FOR EASTERN JACKSON...EASTERN
GRAND...CLEAR CREEK AND GILPIN COUNTIES...BUT REMAINS IN EFFECT FOR
MUCH OF THE FRONT RANGE AND PARTS OF EASTERN EASTERN COLORADO UNTIL
8PM MDT TONIGHT.  CONTINUE TO MONITOR NOAA WEATHER RADIO OR LOCAL NEWS
MEDIA FOR FURTHER STATEMENTS AND POSSIBLE WARNINGS.

LESZCYNSKI

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 12:52 PM MDTTornado WarningBOUDouglas38 min
Jun 26, 4:48 PM MDTSevere Thunderstorm WarningBOUArapahoe27 min
Jun 26, 5:44 PM MDTSevere Thunderstorm WarningBOUMorgan46 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.