Alert archive / Colorado / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 59, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 14, 1997, 9:38 PM MDT for Phillips County, Colorado. It was in force for 27 min. 1 report came from 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, with what was reported inside it.
The facts
- Issued
- Jun 14, 1997, 9:38 PM MDT (03:38 UTC)
- Expired
- Jun 14, 1997, 10:05 PM MDT
- In force
- 27 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Phillips County, CO
The radar
The Goodland radar (KGLD), 139 km from the middle of the area, began a volume at 03:41 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, 9:49 PM MDT | Hail 0.75 | Eckley, 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 nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 3.6 hours before the alert went out and 93 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
- 70 J/kg
- Mixed-layer CIN
- -106 J/kg
- Mixed-layer LCL
- 2413 m above ground
- 0-6 km bulk shear
- 3 kt
- 0-1 km storm-relative helicity
- -71 m²/s²
- 0-3 km storm-relative helicity
- -39 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
668
WUUS1 KDEN 150339 RRA
SVRDEN
COC095-150405-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
938 PM MDT SAT JUN 14 1997
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL 1005 PM MDT FOR PEOPLE IN THE
FOLLOWING COUNTIES...
IN NORTHEAST COLORADO
SOUTHWESTERN PHILLIPS
INCLUDING THE FOLLOWING LOCATIONS
HAXTUN AND HIGHLAND CENTER...
AT 932 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM 5 MILES SOUTHEAST OF HIGHLAND CENTER...OR
ABOUT 15 MILES SOUTHWEST OF HOLYOKE.
AT 930 PM MDT THE PUBLIC REPORTED WIND DRIVEN HAIL 1 1/2 INCHES IN
DIAMETER FROM THIS STORM 3 MILES SOUTHEAST OF HIGHLAND CENTER...OR
ABOUT 17 MILES SOUTHWEST OF HOLYOKE.
THE STORM WAS MOVING EAST-NORTHEAST AT 30 MILES PER HOUR.
THIS IS A DANGEROUS STORM 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.
&
BAKER
LAT...LON 4047 10219 4020 10254 4047 10290 4074 10254What 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 14, 5:34 PM MDT, 4 hours 4 minutes before
COZ040-140010- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 535 PM MDT SAT JUN 14 1997 ...STRONG THUNDERSTORMS MOVING EASTWARD THROUGH DOUGLAS COUNTY... AT 530 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF STRONG THUNDERSTORMS MOVING EAST THROUGH DOUGLAS COUNTY. THE STRONGEST STORM WAS LOCATED 7 MILES NORTHEAST OF CASTLE ROCK...OR 34 MILES SOUTH OF DENVER. THIS LINE OF STORMS WAS MOVING EAST-NORTHEAST AT 25 MPH. PERSONS IN OR NEAR CASTLE ROCK...FRANTOWN...LARKSPUR...BEVERLY HILLS...PARKER...GREENLAND AND SILVER HEIGHTS SHOULD BE ON THE LOOKOUT FOR LARGE HAIL...VERY STRONG WIND GUSTS...FUNNEL CLOUDS AND POSSIBLE TORNADOES WITH THESE STORMS AND MOVE TO A PLACE OF SAFETY IF BAD WEATHER APPROACHES. HEAVY RAINS MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS AS THEY MAY BE WASHED OUT. WATER LEVELS OF SMALL STREAMS AND RIVERS MAY ALSO RISE...THEREFORE SEEK HIGHER GROUND IF THREATENED BY FLOOD WATERS. A TORNADO WATCH REMAINS IN EFFECT FOR ALL OF NORTHEAST COLORADO UNTIL 900 PM THIS EVENING. BAKER
Special weather statement, Jun 14, 5:35 PM MDT, 4 hours 3 minutes before
COZ040-140010- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 535 PM MDT SAT JUN 14 1997 ...STRONG THUNDERSTORMS MOVING EASTWARD THROUGH DOUGLAS COUNTY... AT 530 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF STRONG THUNDERSTORMS MOVING EAST THROUGH DOUGLAS COUNTY. THE STRONGEST STORM WAS LOCATED 7 MILES NORTHEAST OF CASTLE ROCK...OR 34 MILES SOUTH OF DENVER. THIS LINE OF STORMS WAS MOVING EAST-NORTHEAST AT 25 MPH. PERSONS IN OR NEAR CASTLE ROCK...FRANTOWN...LARKSPUR...BEVERLY HILLS...PARKER...GREENLAND AND SILVER HEIGHTS SHOULD BE ON THE LOOKOUT FOR LARGE HAIL...VERY STRONG WIND GUSTS...FUNNEL CLOUDS AND POSSIBLE TORNADOES WITH THESE STORMS AND MOVE TO A PLACE OF SAFETY IF BAD WEATHER APPROACHES. HEAVY RAINS MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES. AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS AS THEY MAY BE WASHED OUT. WATER LEVELS OF SMALL STREAMS AND RIVERS MAY ALSO RISE...THEREFORE SEEK HIGHER GROUND IF THREATENED BY FLOOD WATERS. A TORNADO WATCH REMAINS IN EFFECT FOR ALL OF NORTHEAST COLORADO UNTIL 900 PM THIS EVENING. BAKER
Special weather statement, Jun 14, 7:26 PM MDT, 2 hours 12 minutes before
COZ045-150200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 726 PM MDT SAT JUN 14 1997 ...STRONG THUNDERSTORM IN EASTERN ADAMS COUNTY... AT 725 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM 7 MILES SOUTHWEST OF SHAMROCK...OR ABOUT 31 MILES SOUTH OF FORT MORGAN. THE STORM WAS MOVING EAST AT 15 MILES PER HOUR. PERSONS IN OR NEAR LEADER AND SHAMROCK SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER AND MOVE TO A PLACE OF SAFETY IF BAD WEATHER APPROACHES. THIS AFTERNOONS THUNDERSTORMS ACROSS THE AREA HAVE HAD A HISTORY OF PRODUCING HAIL UP TO 1 1/2 INCHES IN DIAMETER AND RAINFALL AMOUNTS OF AROUND 1 INCH. A TORNADO WATCH REMAINS IN EFFECT FOR NORTHEASTERN COLORADO UNTIL 900 PM. RJK
Special weather statement, Jun 14, 7:28 PM MDT, 2 hours 10 minutes before
COZ045-150200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 726 PM MDT SAT JUN 14 1997 ...STRONG THUNDERSTORM IN EASTERN ADAMS COUNTY... AT 725 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A THUNDERSTORM 7 MILES SOUTHWEST OF SHAMROCK...OR ABOUT 31 MILES SOUTH OF FORT MORGAN. THE STORM WAS MOVING EAST AT 15 MILES PER HOUR. PERSONS IN OR NEAR LEADER AND SHAMROCK SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER AND MOVE TO A PLACE OF SAFETY IF BAD WEATHER APPROACHES. THIS AFTERNOON'S THUNDERSTORMS ACROSS THE AREA HAVE HAD A HISTORY OF PRODUCING HAIL UP TO 1 1/2 INCHES IN DIAMETER AND RAINFALL AMOUNTS OF AROUND 1 INCH. A TORNADO WATCH REMAINS IN EFFECT FOR NORTHEASTERN COLORADO UNTIL 900 PM. RJK
Special weather statement, Jun 14, 8:51 PM MDT, 47 minutes before
COZ038>050-150330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 851 PM MDT SAT JUN 14 1997 ...TORNADO WATCH WILL EXPIRE AT 900 PM MDT FOR EASTERN COLORADO... THE TORNADO WATCH ISSUED EARLIER FOR PORTIONS OF EASTERN COLORADO WILL EXPIRE AT 900 PM MDT. AT 848 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SCATTERED SHOWERS AND THUNDERSTORMS OVER EXTREME NORTHEAST COLORADO. IN ADDITION AN ISOLATED THUNDERSTORM WAS LOCATED OVER SOUTHEASTERN WELD COUNTY EAST OF KEENESBURG. THE SHOWERS AND THUNDERSTORMS WERE MOVING EAST AT 25 MPH AND WILL PRODUCE HEAVY RAIN...HAIL...GUSTY WINDS AND DANGEROUS LIGHTNING. KLEYLA
Special weather statement, Jun 14, 8:53 PM MDT, 45 minutes before
COZ038>050-150330- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 851 PM MDT SAT JUN 14 1997 ...TORNADO WATCH WILL EXPIRE AT 900 PM MDT FOR EASTERN COLORADO... THE TORNADO WATCH ISSUED EARLIER FOR PORTIONS OF EASTERN COLORADO WILL EXPIRE AT 900 PM MDT. AT 848 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SCATTERED SHOWERS AND THUNDERSTORMS OVER EXTREME NORTHEAST COLORADO. IN ADDITION AN ISOLATED THUNDERSTORM WAS LOCAzTED OVER SOUTHEASTERN WELD COUNTY EAST OF KEENESBURG. THE SHOWERS AND THUNDERSTORMS WERE MOVING EAST AT 25 MPH AND WILL PRODUCE HEAVY RAIN...HAIL...GUSTY WINDS AND DANGEROUS LIGHTNING. KLEYLA
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 14, 6:05 PM MDT | Severe Thunderstorm Warning | BOU | Morgan, Weld | 35 min |
| Jun 14, 7:35 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Washington | 25 min |
| Jun 14, 7:55 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Phillips, Sedgwick | 45 min |
| Jun 14, 8:52 PM MDT | Severe Thunderstorm Warning | BOU | Logan, Phillips, Sedgwick | 38 min |
| Jun 15, 12:33 AM MDT | Flash Flood Warning | BOU | Phillips | 3 hr |
| Jun 15, 3:25 AM MDT | Flash Flood Warning | BOU | Phillips | 2 hr |
| Jun 15, 5:23 AM MDT | Flash Flood Warning | BOU | Phillips | 3 hr |
| Jun 15, 1:41 PM MDT | Severe Thunderstorm Warning | BOU | Larimer, Weld | 34 min |
| Jun 15, 3:11 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Boulder, Weld | 34 min |
| Jun 15, 3:20 PM MDT | Tornado Warning | BOU | Adams, Weld | 25 min |
| Jun 15, 3:20 PM MDT | Tornado Warning | BOU | Boulder | 25 min |
| Jun 15, 3:53 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Weld | 32 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.