Alert archive / Colorado / Tornado Warnings in 1992
Tornado Warning 16, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at Jul 1, 1992, 5:31 PM MDT for Arapahoe County, Colorado. It was in force for 44 min. 4 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
- Jul 1, 1992, 5:31 PM MDT (23:31 UTC)
- Expired
- Jul 1, 1992, 6:15 PM MDT
- In force
- 44 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
County Arapahoe County, CO
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 1, 5:49 PM MDT | Hail 2 | Arapahoe, CO | |
| Jul 1, 5:50 PM MDT | Hail 2 | Arapahoe, CO | |
| Jul 1, 6:10 PM MDT | Hail 0.75 | Arapahoe, CO | |
| Jul 1, 6:12 PM MDT | Hail 1.75 | Arapahoe, 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, 11.5 hours before the alert went out and 98 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.
- Mixed-layer CAPE
- 50 J/kg
- Mixed-layer CIN
- -72 J/kg
- Mixed-layer LCL
- 876 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 147 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KDEN 012332
TORDEN
COC005-020015-
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
531 PM MDT WED JUL 01 1992
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A TORNADO
WARNING EFFECTIVE UNTIL 615 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN NORTHEASTERN COLORADO
CENTRAL ARAPAHOE
INCLUDING THE FOLLOWING LOCATIONS
BYERS AND DEER TRAIL
AT 531 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
A POSSIBLE TORNADO 5 MILES SOUTHEAST OF BYERS ...OR ABOUT 37
MILES NORTHWEST OF LIMON.
THE STORM WAS MOVING EAST AT 15 MPH.
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET
UNDER A WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO
BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE
BUILDING IN AN INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE
BLANKETS OR PILLOWS TO COVER YOUR BODY AND ALWAYS STAY AWAY
FROM WINDOWS.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN
THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH
YOUR HANDS.
TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT
AGENCY RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
FORECAST OFFICE IN DENVER.
DULONG
LAT...LON 3957 10394 3957 10427 3973 10427 3973 10394What forecasters said that day
The local office's own words before this tornado 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, Jul 1, 12:20 PM MDT, 5 hours 11 minutes before
COZ002-004-011-012-013-020000- SIGNIFICANT WEATHER OUTLOOK FOR NORTHEAST COLORADO NATIONAL WEATHER SERVICE DENVER CO 1140 AM MDT WED JUL 1 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 SEVERE WEATHER IS POSSIBLE IN THE AREA...BUT SHOULD NOT DEVELOP UNTIL LATE THIS AFTERNOON OR THIS EVENING. A COOL AND STABLE AIRMASS HAS DROPPED INTO NORTHEAST COLORADO TODAY BEHIND A COLD FRONT. EAST TO NORTHEAST UPSLOPING FLOW HAS CAUSED WIDESPREAD CLOUDINESS. AREAS OF LIGHT RAIN AND DRIZZLE HAVE BEEN OCCURRING...MAINLY OVER THE LOWER NORTHEAST PLAINS AND BORDER. LOOKING TOWARDS THE WEST...A FAIRLY STRONG UPPER LEVEL SYSTEM IS APPROACHING COLORADO FROM UTAH. THIS SYSTEM WILL HELP SPAWN NUMEROUS SHOWERS AND THUNDERSTORMS OVER THE HIGHER TERRAIN OF NORTHERN COLORADO THIS AFTERNOON AND EVENING...SPECIFICALLY FROM THE NORTHEAST FOOTHILLS AND PALMER DIVIDE WESTWARD. A FEW OF THESE STORMS COULD APPROACH SEVERE LEVELS...MAINLY OVER OR NEAR THE HIGHER TERRAIN OF LARIMER COUNTY SOUTHWARD TO DOUGLAS COUNTY. COLDER AIR WILL BE MOVING IN ALOFT... DROPPING THE SNOW LEVEL TO 10 THOUSAND FEET. THIS APPROACHING SYSTEM IS EXPECTED TO CHANGE THE STABLE AIRMASS OF NORTHEAST COLORADO TO ONE FAVORING STORM DEVELOPMENT BY EARLY TONIGHT. SHOWERS AND THUNDERSTORMS SHOULD BECOME NUMEROUS OVER THE URBAN CORRIDOR ...AND SPREAD EASTWARD TO THE KANSAS AND NEBRASKA BORDERS BY 8 PM THIS EVENING. SOME OF THESE STORMS COULD ALSO BE'COME SEVERE. SPOTTER ACTIVATION COULD BE NEEDED ALONG THE URBAN CORRIDOR LATE THIS AFTERNOON...AND COULD BE EXPANDED TO THE NORTHEAST PLAINS/BORDER REGION THIS EVENING. DULONG
Special weather statement, Jul 1, 5:06 PM MDT, 25 minutes before
COZ011-012-020000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 510 PM MDT WED JUL 01 1992 ...STRONG THUNDERSTORM SOUTHEAST OF PLATTEVILLE... AT 5 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG AND RAPIDLY DEVELOPING THUNDERSTORM SOUTHEAST OF PLATTEVILLE OR ABOUT 30 MILES SOUTHEAST OF FORT COLLINS. THE STORM WAS MOVING TO THE EAST AT ABOUT 10 MPH. HAIL...STRONG WINDS AND VERY HEAVY RAIN WILL ACCOMPANY THIS STORM AS IT MOVES ACROSS SOUTH CENTRAL WELD COUNTY NORTH OF HUDSON OVER THE NEXT 30 MINUTES. MOVE TO A PLACE OF SAFETY IF THREATENING WEATHER APPROACHES. ET
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 5:14 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 46 min |
Nearby
Tornado Warnings in Colorado, 1992Every tornado warning in 1992Tornadoes 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.