Alert archive / Colorado / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 49, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 14, 1997, 4:39 PM MDT for Adams County, Arapahoe County, Denver County, Colorado. It was in force for 51 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 14, 1997, 4:39 PM MDT (22:39 UTC)
- Expired
- Jun 14, 1997, 5:30 PM MDT
- In force
- 51 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties
Counties Adams County, CO, Arapahoe County, CO, Denver County, CO
The radar
The Denver radar (KFTG), 4 km from the middle of the area, began a volume at 22:39 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 14, 5:30 PM MDT | Hail 1 | Bennett, 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 14, 3:15 PM MDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 10.7 hours before the alert went out and 111 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
- 262 J/kg
- Mixed-layer CIN
- -79 J/kg
- Mixed-layer LCL
- 922 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 75 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 142241 RRA
SVRDEN
COC001-005-031-142330-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
439 PM MDT SAT JUN 14 1997
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL 530 PM MDT FOR PEOPLE IN THE
FOLLOWING COUNTIES...
IN NORTHEAST COLORADO
WESTERN ARAPAHOE...DENVER AND SOUTHWESTERN ADAMS
INCLUDING THE FOLLOWING LOCATIONS
AURORA...SOUTHEASTERN COMMERCE CITY...SOUTHWESTERN DENVER
INTERNATIONAL AIRPORT...DENVER...ENGLEWOOD...LITTLETON...
GREENWOOD VILLAGE AND SHERIDAN
AT 433 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM OVER NORTHEASTERN LITTLETON...OR ABOUT 9 MILES
SOUTH OF DENVER.
THE STORM WAS MOVING NORTHEAST AT 35 MILES PER HOUR.
A TORNADO WATCH REMAINS IN EFFECT FOR MUCH OF NORTHEAST COLORADO UNTIL
9 PM MDT THIS EVENING.
LARGE HAIL IS POSSIBLE WITH THIS SEVERE THUNDERSTORM. IF YOU ARE
IN THE PATH OF THE STORM...PUT YOUR CAR IN A GARAGE AND MOVE TO A
SUBSTANTIAL SHELTER.
REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN DENVER.
LhAT...LON 3968 10463 3953 10496 3965 10510 3990 10475The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 13, 6:12 PM MDT | Severe Thunderstorm Warning | BOU | Elbert | 48 min |
| Jun 13, 6:12 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 33 min |
| Jun 13, 6:30 PM MDT | Flash Flood Warning | BOU | Weld | 16 hr |
| Jun 13, 6:57 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 43 min |
| Jun 13, 7:07 PM MDT | Tornado Warning | BOU | Elbert | 23 min |
| Jun 13, 7:30 PM MDT | Severe Thunderstorm Warning | BOU | Elbert | 45 min |
| Jun 13, 8:15 PM MDT | Tornado Warning | BOU | Elbert | 30 min |
| Jun 13, 8:47 PM MDT | Tornado Warning | BOU | Elbert, Lincoln | 43 min |
| Jun 13, 9:31 PM MDT | Severe Thunderstorm Warning | BOU | Lincoln | 44 min |
| Jun 14, 3:53 PM MDT | Severe Thunderstorm Warning | BOU | Elbert | 42 min |
| Jun 14, 3:55 PM MDT | Severe Thunderstorm Warning | BOU | Boulder, Larimer | 35 min |
| Jun 14, 4:22 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 23 min |
| Jun 14, 4:26 PM MDT | Severe Thunderstorm Warning | BOU | Arapahoe, Elbert | 29 min |
| Jun 14, 4:26 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Washington | 29 min |
| Jun 14, 4:45 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 30 min |
| Jun 14, 5:00 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Washington | 35 min |
| Jun 14, 5:00 PM MDT | Severe Thunderstorm Warning | BOU | Elbert | 35 min |
| Jun 14, 5:23 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Denver | 52 min |
| Jun 14, 5:51 PM MDT | Severe Thunderstorm Warning | BOU | Weld | 29 min |
Nearby
Severe Thunderstorm Warnings in Colorado, 1997Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.