Alert archive / Colorado / Tornado Warnings in 1997
Tornado Warning 40, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this tornado warning at Aug 16, 1997, 7:28 PM MDT for Adams County, Colorado. It was in force for 32 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
- Aug 16, 1997, 7:28 PM MDT (01:28 UTC)
- Expired
- Aug 16, 1997, 8:00 PM MDT
- In force
- 32 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
County Adams County, CO
The radar
The Denver radar (KFTG), 20 km from the middle of the area, began a volume at 01:31 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, 1.5 hours before the alert went out and 95 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
- 1611 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 1576 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 11 m²/s²
- 0-3 km storm-relative helicity
- -15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KDEN 170128 RRA
TORDEN
COC001-170200-
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE DENVER CO
728 PM MDT SAT AUG 16 1997
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 800 PM MDT FOR PEOPLE IN THE FOLLOWING COUNTIES
IN NORTHEAST COLORADO
EASTERN ADAMS
INCLUDING THE FOLLOWING LOCATIONS
SHAMROCK
AT 728 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM WITH A POSSIBLE TORNADO 5 MILES WEST OF SHAMROCK...OR
ABOUT 26 MILES SOUTH OF FORT MORGAN.
THE STORM WAS MOVING SOUTH AT 5 MILES PER HOUR.
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
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.h..LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
LAT...LON 3984 10368 3971 10391 3988 10404 3998 10395
FMCThe office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 6:00 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Denver, Douglas, Jefferson | 45 min |
| Aug 16, 6:51 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Morgan, Washington | 39 min |
| Aug 16, 7:38 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 22 min |
| Aug 16, 7:48 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 27 min |
| Aug 16, 7:59 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 46 min |
| Aug 16, 8:17 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln, Washington | 28 min |
| Aug 16, 8:31 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 44 min |
| Aug 16, 8:40 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Weld | 30 min |
| Aug 16, 9:10 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 50 min |
| Aug 16, 9:34 PM MDT | Severe Thunderstorm Warning | BOU | Boulder, Larimer | 31 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.