Alert archive / Colorado / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 71, NWS Denver/Boulder, CO

June 29, 1992Douglas County, Colorado

NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 29, 1992, 2:56 PM MDT for Douglas County, Colorado. It was in force for 19 min. 1 report 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 29, 1992, 2:56 PM MDT (20:56 UTC)
Expired
Jun 29, 1992, 3:15 PM MDT
In force
19 min
Issued by
NWS Denver/Boulder, CO
Area
Whole counties

County Douglas County, CO

What was reported inside it

TimeReportWhereRemark
Jun 29, 3:25 PM MDTHail 0.75Douglas, 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

Fort Carson/Butt, CO (KFCS), launched 12:00Z, 8.9 hours before the alert went out and 75 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, Fort Carson/Butt, CO at 12:00Z on 1992-06-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 28 joules per kilogram.LCLLFCEL10008507005003002001001 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, Fort Carson/Butt, CO at 12:00Z on 1992-06-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 square meters per square second.1939Sfc1 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
28 J/kg
Mixed-layer CIN
-260 J/kg
Mixed-layer LCL
1527 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
66 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KDEN 292100
SVRDEN
COC035-292115-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
256 PM MDT MON JUN 29 1992

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL 315 PM MDT FOR PEOPLE IN
THE FOLLOWING COUNTIES

IN NORTHEASTERN COLORADO
     CENTRAL DOUGLAS

AT 256 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A SEVERE THUNDERSTORM 30 MILES SOUTH OF DENVER.

THE DOUGLAS COUNTY OFFICE OF EMERGENCY PREPAREDNESS RELAYED A REPORT OF
A SHORT-LIVED FUNNEL CLOUD OVER DAWSON BUTTES...TO THE SOUTHWEST OF
CASTLE ROCK OR ABOUT 28 MILES SOUTH-SOUTHWEST OF DENVER.

THE STORM WAS MOVING EAST AT 15 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.

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCED
WARNING.  PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY
STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS
SPOTTED.


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


LAT...LON 3923 10477 3925 10494 3935 10496 3934 10480

RUFF

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 29, 11:27 AM MDT, 3 hours 29 minutes before
COZ002-004-011-012-013-300000-

SIGNIFICANT WEATHER OUTLOOK FOR NORTHEAST COLORADO
NATIONAL WEATHER SERVICE DENVER CO
1127 AM MDT MON JUN 29 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

SCATTERED HUNDERSTORMS WILL DEVELOP OVER THE LARIMER COUNTY MOUNTAINS
AND MOVE OUT ONTO THE WELD COUNTY PLAINS EARLY THIS AFTERNOON.  THE
STORM TRACK WILL LIKELY BE MUCH THE SAME AS IT WAS SUNDAY WITH STORMS
MOVING INTO CENTRAL AND SOUTHERN WELD AND CENTRAL AND EASTERN ADAMS
COUNTIES BY MID-AFTERNOON.  AREAS EAST OF A STERLING-AKRON LINE ARE MORE
STABLE AND WILL NOT SEE ISOLATED STORMS UNTIL LATE AFTERNOON OR EARLY
EVENING.

SEVERE STORMS ARE NOT EXPECTED...HOWEVER GUSTY WINDS ARE LIKELY WITH
STORMS THIS AFTERNOON.  STORM MOTION WILL BE SOUTHEAST AT 5 TO 15
MILES AN HOUR.

SPOTTER ACTIVATION IS NOT EXPECTED TODAY.

RUFF

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 3:15 PM MDTSevere Thunderstorm WarningBOUDouglas30 min
Jun 29, 4:15 PM MDTSevere Thunderstorm WarningBOUDouglas60 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.