Alert archive / Colorado / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 97, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 28, 1997, 8:58 PM MDT for Lincoln County, Washington County, Colorado. It was in force for 47 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 28, 1997, 8:58 PM MDT (02:58 UTC)
- Expired
- Jun 28, 1997, 9:45 PM MDT
- In force
- 47 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Lincoln County, CO, Washington County, CO
The radar
The Denver radar (KFTG), 109 km from the middle of the area, began a volume at 03:01 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, 3.0 hours before the alert went out and 40 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
- 15 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 4089 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- -17 m²/s²
- 0-3 km storm-relative helicity
- 92 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
079
WUUS1 KDEN 290259 RRA
SVRDEN
COC073-121-290345-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
858 PM MDT SAT JUN 28 1997
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL 945 PM MDT FOR PEOPLE IN THE
FOLLOWING COUNTIES...
IN NORTHEAST COLORADO
SOUTH CENTRAL WASHINGTON
IN EAST CENTRAL COLORADO
NORTHEERN LINCOLN
INCLUDING THE FOLLOWING LOCATIONS
THURMAN
AT 858 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM 17 MILES SOUTHWEST OF THURMAN...OR ABOUT 17 MILES
NORTHEAST OF LIMON.
THE STORM WAS MOVING EAST AT 25 MILES PER HOUR.
IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER
AWAY FROM CREEK BEDS AND OTHER FLOOD-PRONE AREAS. REMEMBER...A SEVERE
THUNDERSTORM CAN PRODUCE LARGE DAMAGING HAIL...DAMAGING WINDS OVER 60
MPH...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY
WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST
OFFICE IN DENVER.
LAT...LON 3960 10316 3934 10321 3939 10355 3965 10353
COOPERWhat 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, Jun 28, 7:32 PM MDT, 1 hour 26 minutes before
COZ041-045-046-049-290215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER COLORADO 733 PM MDT SAT JUN 28 1997 ...STRONG THUNDERSTORMS DEVELOPING IN NORTH CENTRAL ELBERT AND EASTERN ARAPAHOE COUNTIES... AT 732 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS DEVELOPING IN NORTH CENTRAL ELBERT AND EASTERN ARAPAHOE COUNTIES... THE STRONGEST STORM WAS LOCATED 5 MILES NORTHEAST OF DEER TRAIL...OR ABOUT 31 MILES NORTHWEST OF LIMON. THE THUNDERSTORMS WERE MOVING EAST-NORTHEAST AT 25 MILES PER HOUR. PERSONS IN OR NEAR AGATE...DEER TRAIL AND JOLLY RANCH SHOULD BE ON THE LOOKOUT STRONG OUTFLOW WINDS AS HIGH AS 45 MPH AND SMALL HAIL OF 1/2 INCH OR LESS. RJK
Special weather statement, Jun 28, 7:33 PM MDT, 1 hour 25 minutes before
COZ041-045-046-049-290215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER COLORADO 733 PM MDT SAT JUN 28 1997 ...STRONG THUNDERSTORMS DEVELOPING IN NORTH CENTRAL ELBERT AND EASTERN ARAPAHOE COUNTIES... AT 732 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS DEVELOPING IN NORTH CENTRAL ELBERT AND EASTERN ARAPAHOE COUNTIES... THE STRONGEST STORM WAS LOCATED 5 MILES NORTHEAST OF DEER TRAIL...OR ABOUT 31 MILES NORTHWEST OF LIMON. THE THUNDERSTORMS WERE MOVING EAST-NORTHEAST AT 25 MILES PER HOUR. PERSONS IN OR NEAR AGATE...DEER TRAIL AND JOLLY RANCH SHOULD BE ON THE LOOKOUT STRONG OUTFLOW WINDS AS HIGH AS 45 MPH AND SMALL HAIL OF 1/2 INCH OR LESS. RJK
Special weather statement, Jun 28, 8:00 PM MDT, 58 minutes before
COZ041-044>046-049-290240- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER COLORADO 800 PM MDT SAT JUN 28 1997 ...STRONG THUNDERSTORMS CONTINUE OVER NORTHEASTERN ELBERT...EASTERN ARAPAHOE...AND EASTERN ADAMS COUNTIES... AT 759 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF THUNDERSTORMS STRETCHING ACROSS NORTHEASTERN ELBERT INTO THE EASTERN PORTIONS OF ARAPAHOE AND ADAMS COUNTIES. THE STRONGEST STORM WAS OVER JOLLY RANCH...OR ABOUT 27 MILES NORTH OF LIMON. THE STORMS WERE MOVING EAST AT 20 MILES PER HOUR. PERSONS IN OR NEAR ADENA SCHOOL...AGATE...DEER TRAIL...GARY...JOLLY RANCH...LAST CHANCE...LIMON...MATHESON...SHAMROCK...TWELVE-MILE CORNER...WOODLIN SCHOOL AND WOODROW SHOULD BE ON THE LOOK OUT FOR 50 MPH OUTFLOW WINDS AND 1/2 INCH HAIL. RJK
Special weather statement, Jun 28, 8:39 PM MDT, 19 minutes before
COZ044>046-049-290345- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 840 PM MDT SAT JUN 28 1997 ...STRONG THUNDERSTORM WINDS MOVING INTO EASTERN ARAPAHOE...EASTERN ADAMS...NORTHEASTERN ELBERT...NORTH CENTRAL LINCOLN...SOUTHEASTERN MORGAN AND SOUTHWESTERN WASHINGTON COUNTIES... AT 833 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF THUNDERSTORMS EXTENDING FROM NEAR WILLARD IN SOUTHWEST MORGAN COUNTY TO NEAR MATHESON IN EASTERN ELBERT COUNTY. THIS LINE OF STORMS WAS MOVING TO THE EAST NORTHEAST AT 25 MPH. AT 8:15 THE LINCOLN COUNTY SHERIFF REPORTED STRONG WINDS ESTIMATED TO NEAR 50 MPH AND FREQUENT LIGHTNING IN EASTERN ELBERT AND WESTERN LINCOLN COUNTIES. PERSONS IN OR NEAR GARY...GENOA...JOLLY RANCH...LAST CHANCE... LIMON...LINDON...WOODLIN SCHOOL AND WOODROW SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER AND MOVE TO A PLACE OF SAFETY IF BAD WEATHER APPROACHES. DEADLY LIGHTING...SMALL HAIL AND STRONG WIND GUSTS TO 50 MPH ARE POSSIBLE WITH THESE STORMS. IF OUTDOORS...STAY AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING TELEPHONES UfNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES. FMC
Special weather statement, Jun 28, 8:40 PM MDT, 18 minutes before
COZ044>046-049-290345- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 840 PM MDT SAT JUN 28 1997 ...STRONG THUNDERSTORM WINDS MOVING INTO EASTERN ARAPAHOE...EASTERN ADAMS...NORTHEASTERN ELBERT...NORTH CENTRAL LINCOLN...SOUTHEASTERN MORGAN AND SOUTHWESTERN WASHINGTON COUNTIES... AT 833 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF THUNDERSTORMS EXTENDING FROM NEAR WILLARD IN SOUTHWEST MORGAN COUNTY TO NEAR MATHESON IN EASTERN ELBERT COUNTY. THIS LINE OF STORMS WAS MOVING TO THE EAST NORTHEAST AT 25 MPH. AT 8:15 THE LINCOLN COUNTY SHERIFF REPORTED STRONG WINDS ESTIMATED TO NEAR 50 MPH AND FREQUENT LIGHTNING IN EASTERN ELBERT AND WESTERN LINCOLN COUNTIES. PERSONS IN OR NEAR GARY...GENOA...JOLLY RANCH...LAST CHANCE... LIMON...LINDON...WOODLIN SCHOOL AND WOODROW SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER AND MOVE TO A PLACE OF SAFETY IF BAD WEATHER APPROACHES. DEADLY LIGHTING...SMALL HAIL AND STRONG WIND GUSTS TO 50 MPH ARE POSSIBLE WITH THESE STORMS. IF OUTDOORS...STAY AWAY FROM ISOLATED HIGH OBJECTS SUCH AS TREES. MOVE INDOORS IF POSSIBLE. WHEN INDOORS...STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING TELEPHONES UNLESS IT IS AN EMERGENCY. TRY TO UNPLUG UNNECESSARY ELECTRICAL APPLIANCES BEFORE THE THUNDERSTORM APPROACHES. FMC
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 28, 10:27 PM MDT | Severe Thunderstorm Warning | BOU | Washington | 48 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.