Alert archive / Colorado / Tornado Warnings in 1996
Tornado Warning 28, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at Jun 22, 1996, 3:10 PM MDT for Boulder County, Colorado. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 22, 1996, 3:10 PM MDT (21:10 UTC)
- Expired
- Jun 22, 1996, 3:45 PM MDT
- In force
- 35 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
County Boulder County, CO
The radar
The Denver radar (KFTG), 77 km from the middle of the area, began a volume at 21:18 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 9.2 hours before the alert went out and 183 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
- 240 J/kg
- Mixed-layer CIN
- -239 J/kg
- Mixed-layer LCL
- 1059 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 177 m²/s²
- 0-3 km storm-relative helicity
- 148 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KDEN 222112
TORDEN
COC001-013-123-222145-
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
310 PM MDT SAT JUN 22 1996
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A TORNADO
WARNING EFFECTIVE UNTIL 345 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTIES
IN NORTHEASTERN COLORADO
EXTREME NORTHWESTERN ADAMS...SOUTHEASTERN BOULDER AND
EXTREME SOUTHWESTERN WELD
INCLUDING THE FOLLOWING LOCATIONS
BROOMFIELD...DACONO...ERIE...LAFAYETTE...LOUISVILLE...
NORTHGLENN...THORNTON AND WESTMINSTER
AT 310 PM MDT HAM RADIO SPOTTERS REPORTED A BRIEF TORNADO NEAR
INTERSTATE 25 AND HIGHWAY 7 EAST OF LAFAYETTE ...OR ABOUT 19 MILES
NORTH OF DENVER.
THIS STORM HAS THE POTENTIAL TO PRODUCE A STRONGER TORNADO...ALONG WITH
LARGE HAIL AND WIND GUSTS TO 75 MPH.
THE STORM WAS MOVING EAST AT 40 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.
GIMMESTAD
LAT...LON 3991 10487 3991 10497 3992 10513 4009 10514
4010 10506 4009 10487What 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, Jun 22, 11:37 AM MDT, 3 hours 33 minutes before
COZ030-032>050-220600- SIGNIFICANT WEATHER OUTLOOK FOR NORTHEAST AND NORTH CENTRAL COLORADO NATIONAL WEATHER SERVICE DENVER CO 1130 AM MDT SAT JUN 22 1996 THIS OUTLOOK PERTAINS TO THE FOLLOWING COLORADO COUNTIES ADAMS ARAPAHOE BOULDER CLEAR CREEK DENVER DOUGLAS ELBERT GILPIN GRAND JACKSON JEFFERSON LARIMER LINCOLN LOGAN MORGAN PARK PHILLIPS SEDGWICK SUMMIT WASHINGTON WELD SYNOPSIS: ANOTHER STORMY AFTERNOON AND EVENING IS EXPECTED ACROSS NORTHEAST AND NORTH CENTRAL COLORADO. SKIES WILL PARTIALLY CLEAR DURING THE AFTERNOON...ALLOWING ENOUGH SUNSHINE FOR TEMPERATURES TO WARM INTO THE 80S. DEWPOINTS WILL REMAIN IN THE UPPER 40S ALONG THE FRONT RANGE AND MID TO UPPER 50S ON THE PLAINS...SO THE ATMOSPHERE WILL BECOME MODERATELY UNSTABLE. THUNDERSTORMS WILL START TO MOVE OFF THE MOUNTAINS BY 2 PM. THE BEST THREAT OF SEVERE WEATHER THROUGH MID AFTERNOON WILL BE FROM SOUTHEAST OF DENVER NORTH TO NEAR CHEYENNE WHERE THERE WILL BE BETTER MOISTURE AND CONVERGING LOW LEVEL WINDS. THE STORMS WILL SPREAD EAST SLOWLY...WITH THE SEVERE WEATHER THREAT REACHING THE AREA EAST OF FORT MORGAN AFTER 5 PM. LARGE HAIL IS THE MAIN THREAT NEAR THE MOUNTAINS...ALTHOUGH STORMS COULD DROP UP TO HALF AN INCH OF RAIN IN A HALF HOUR CAUSING MINOR FLOODING. AS THE STORMS DEVELOP TO THE EAST THERE WILL BE A BETTER THREAT OF BOTH LARGE HAIL AND TORNADOES. SPOTTER ACTIVATION IS LIKELY NEAR THE MOUNTAINS BY 3 PM AND ON THE PLAINS BY EARLY EVENING. GIMMESTAD
Special weather statement, Jun 22, 11:38 AM MDT, 3 hours 32 minutes before
COZ030-032>050-230600- ...CORRECTED COMMS HEADER... SIGNIFICANT WEATHER OUTLOOK FOR NORTHEAST AND NORTH CENTRAL COLORADO NATIONAL WEATHER SERVICE DENVER CO 1130 AM MDT SAT JUN 22 1996 THIS OUTLOOK PERTAINS TO THE FOLLOWING COLORADO COUNTIES ADAMS ARAPAHOE BOULDER CLEAR CREEK DENVER DOUGLAS ELBERT GILPIN GRAND JACKSON JEFFERSON LARIMER LINCOLN LOGAN MORGAN PARK PHILLIPS SEDGWICK SUMMIT WASHINGTON WELD SYNOPSIS: ANOTHER STORMY AFTERNOON AND EVENING IS EXPECTED ACROSS NORTHEAST AND NORTH CENTRAL COLORADO. SKIES WILL PARTIALLY CLEAR DURING THE AFTERNOON...ALLOWING ENOUGH SUNSHINE FOR TEMPERATURES TO WARM INTO THE 80S. DEWPOINTS WILL REMAIN IN THE UPPER 40S ALONG THE FRONT RANGE AND MID TO UPPER 50S ON THE PLAINS...SO THE ATMOSPHERE WILL BECOME MODERATELY UNSTABLE. THUNDERSTORMS WILL START TO MOVE OFF THE MOUNTAINS BY 2 PM. THE BEST THREAT OF SEVERE WEATHER THROUGH MID AFTERNOON WILL BE FROM SOUTHEAST OF DENVER NORTH TO NEAR CHEYENNE WHERE THERE WILL BE BETTER MOISTURE AND CONVERGING LOW LEVEL WINDS. THE STORMS WILL SPREAD EAST SLOWLY...WITH THE SEVERE WEATHER THREAT REACHING THE AREA EAST OF FORT MORGAN AFTER 5 PM. LARGE HAIL IS THE MAIN THREAT NEAR THE MOUNTAINS...ALTHOUGH STORMS COULD DROP UP TO HALF AN INCH OF RAIN IN A HALF HOUR CAUSING MINOR FLOODING. AS THE STORMS DEVELOP TO THE EAST THERE WILL BE A BETTER THREAT OF BOTH LARGE HAIL AND TORNADOES. SPOTTER ACTIVATION IS LIKELY NEAR THE MOUNTAINS BY 3 PM AND ON THE PLAINS BY EARLY EVENING. GIMMESTAD
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 22, 2:43 PM MDT | Severe Thunderstorm Warning | BOU | Clear Creek, Gilpin, Jefferson | 47 min |
| Jun 22, 2:43 PM MDT | Severe Thunderstorm Warning | BOU | Boulder | 47 min |
| Jun 22, 3:10 PM MDT | Tornado Warning | BOU | Adams, Weld | 35 min |
Nearby
Tornado Warnings in Colorado, 1996Every tornado warning in 1996Tornadoes in 1996
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; radar from the NEXRAD Level II archive.