Alert archive / Colorado / Tornado Warnings in 1997
Tornado Warning 25, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at Jun 23, 1997, 6:59 PM MDT for Adams County, Arapahoe County, Colorado. It was in force for 31 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Jun 23, 1997, 6:59 PM MDT (00:59 UTC)
- Expired
- Jun 23, 1997, 7:30 PM MDT
- In force
- 31 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Adams County, CO, Arapahoe County, CO
The radar
The Denver radar (KFTG), 27 km from the middle of the area, began a volume at 01:00 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 00:00Z, 1.0 hours before the alert went out and 86 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
- 82 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 2872 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- -17 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
144
WFUS1 KDEN 240102 RRA
TORDEN
COC001-005-240130-
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
659 PM MDT MON JUN 23 1997
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 730 PM MDT FOR PEOPLE IN THE FOLLOWING COUNTIES
IN NORTHEAST COLORADO
NORTH CENTRAL ARAPAHOE AND SOUTH CENTRAL ADAMS
INCLUDING THE FOLLOWING LOCATIONS
BYERS AND STRASBURG
AT 654 PM MDT AMATEUR RADIO WEATHER SPOTTERS REPORTED A TORNADO 5
MILES EAST OF STRASBURG...OR ABOUT 38 MILES EAST OF DENVER.
THE STORM WAS MOVING NORTH NORTHEAST AT 20 MILES PER HOUR.
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.
GARD...WSFO DENVER
LAT...LON 3980 10414 3969 10419 3971 10436 3984 10430The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 8:14 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 46 min |
| Jun 23, 9:00 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 45 min |
| Jun 24, 3:11 PM MDT | Severe Thunderstorm Warning | BOU | Douglas, Elbert | 49 min |
| Jun 24, 3:58 PM MDT | Severe Thunderstorm Warning | BOU | Elbert | 47 min |
| Jun 24, 4:40 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 50 min |
| Jun 24, 4:43 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Weld | 32 min |
| Jun 24, 5:11 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 49 min |
| Jun 24, 5:15 PM MDT | Severe Thunderstorm Warning | BOU | Morgan | 30 min |
| Jun 24, 5:26 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 49 min |
| Jun 24, 5:36 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 39 min |
| Jun 24, 5:50 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Weld | 40 min |
| Jun 24, 5:54 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 36 min |
Nearby
Tornado Warnings in Colorado, 1997Every tornado warning in 1997Tornadoes in 1997
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.