Alert archive / Colorado / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 149, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Aug 28, 1997, 5:34 PM MDT for Lincoln County, Colorado. It was in force for 41 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
- Aug 28, 1997, 5:34 PM MDT (23:34 UTC)
- Expired
- Aug 28, 1997, 6:15 PM MDT
- In force
- 41 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Lincoln County, CO
The radar
The Pueblo radar (KPUX), 30 km from the middle of the area, began a volume at 23:37 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
Fort Carson/Butt, CO (KFCS), launched 12:00Z, 11.6 hours before the alert went out and 64 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
- 972 J/kg
- Mixed-layer CIN
- -60 J/kg
- Mixed-layer LCL
- 1362 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 122 m²/s²
- 0-3 km storm-relative helicity
- 99 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 282335 RRA
SVRDEN
COC073-290015-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
534 PM MDT THU AUG 28 1997
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL 615 PM MDT FOR PEOPLE IN THE
FOLLOWING COUNTIES...
IN EAST CENTRAL COLORADO
SOUTHWESTERN LINCOLN
AT 533 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM ALONG THE EL PASO AND LINCOLN COUNTY BORDER JUST
SOUTH OF RUSH...WHICH IS ABOUT 39 MILES SOUTHWEST OF LIMON.
THE STORM WAS MOVING SOUTHEAST AT 25 MILES PER HOUR.
GOLF BALL SIZED HAIL IS POSSIBLE WITH THIS STORM. THREE QUARTER INCH
HAIL WAS REPORTED 1 MILE EAST OF YODER IN EL PASO COUNTY. 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.
HERRALD
LAT...LON 3853 10383 3853 10406 3880 10405 3887 10405
3875 10393What forecasters said that day
The local office's own words before this severe thunderstorm 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, Aug 28, 3:46 PM MDT, 1 hour 48 minutes before
COZ039-043-282230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 346 PM MDT THU AUG 28 1997 ...STRONG THUNDERSTORM MOVING THROUGH SOUTHEASTERN BOULDER COUNTY AND INTO SOUTHWESTERN WELD COUNTY... AT 346 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 2 MILES WEST OF LOUISVILLE...OR ABOUT 20 MILES NORTHWEST OF DENVER. THE STORM WAS MOVING NORTHEAST AT 25 MILES PER HOUR. PERSONS IN OR NEAR LOUISVILLE...ERIE...FIRESTONE...AND LAFAYETTE SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER. THIS STORM WILL PRODUCE PEA TO MARBLE SIZED HAIL...GUSTY WINDS UP TO 45 MPH...AND A QUICK 1/2 INCH OF RAIN. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES...UNLESS IN AN EMERGENCY...UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS. BARJENBRUCH
Special weather statement, Aug 28, 3:49 PM MDT, 1 hour 45 minutes before
COZ039-043-282230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 346 PM MDT THU AUG 28 1997 ...STRONG THUNDERSTORM MOVING THROUGH SOUTHEASTERN BOULDER COUNTY AND INTO SOUTHWESTERN WELD COUNTY... AT 346 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 2 MILES WEST OF LOUISVILLE...OR ABOUT 20 MILES NORTHWEST OF DENVER. THE STORM WAS MOVING NORTHEAST AT 25 MILES PER HOUR. PERSONS IN OR NEAR LOUISVILLE...ERIE...FIRESTONE...AND LAFAYETTE SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER. THIS STORM WILL PRODUCE PEA TO MARBLE SIZED HAIL...GUSTY WINDS UP TO 45 MPH...AND A QUICK 1/2 INCH OF RAIN. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DO NOT USE TELEPHONES OR ELECTRICAL APPLIANCES...UNLESS IN AN EMERGENCY...UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS. BARJENBRUCH
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 28, 12:25 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 65 min |
| Aug 28, 2:00 PM MDT | Flash Flood Warning | BOU | Elbert, Lincoln | 2 hr |
| Aug 28, 2:00 PM MDT | Severe Thunderstorm Warning | BOU | Elbert, Lincoln | 2 hr |
| Aug 28, 4:58 PM MDT | Severe Thunderstorm Warning | BOU | Douglas, Elbert | 47 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.