Alert archive / Colorado / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 54, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this severe thunderstorm warning at Jun 14, 1997, 5:51 PM MDT for Weld County, Colorado. It was in force for 29 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 14, 1997, 5:51 PM MDT (23:51 UTC)
- Expired
- Jun 14, 1997, 6:20 PM MDT
- In force
- 29 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Weld County, CO
The radar
The Denver radar (KFTG), 75 km from the middle of the area, began a volume at 23:50 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 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, 11.9 hours before the alert went out and 109 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 142351 RRA
SVRDEN
COC123-150020-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DENVER CO
551 PM MDT SAT JUN 14 1997
THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL 620 PM MDT FOR PEOPLE IN THE
FOLLOWING COUNTIES...
IN NORTHEAST COLORADO
CENTRAL WELD
INCLUDING THE FOLLOWING LOCATIONS
BARNESVILLE AND RIVERSIDE RESERVOIR
AT 549 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM 8 MILES SOUTHEAST OF BARNESVILLE...OR ABOUT 17
MILES EAST OF GREELEY.
THE STORM WAS MOVING NORTHEAST AT 35 MILES PER HOUR.
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH
LITTLE OR NO ADVANCE WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN
A STURDY STRUCTURE SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A
TORNADO IS SPOTTED.
A TORNADO WATCH REMAINS IN EFFECT FOR NORTHEAST COLORADO UNTIL 9 PM MDT.
VERY LARGE HAIL AND WIND GUSTS IN EXCESS OF 60 MPH ARE 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.
BAKER
LAT...LON 4036 10415 4024 10441 4047 10452 4072 10416What 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, 3:35 PM MDT, 2 hours 16 minutes before
COZ033-035-142205- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 335 PM MDT SAT JUN 14 1997 ...STRONG THUNDERSTORMS OVER NORTH CENTRAL LARIMER COUNTY... AT 330 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 4 MILES NORTH OF RED FEATHER LAKES...OR ABOUT 32 MILES NORTHWEST OF FORT COLLINS. THE STORM WAS MOVING NORTHEAST AT 20 TO 25 MPH. PERSONS IN OR NEAR RED FEATHER LAKES AND VIRGINIA DALE SHOULD BE ON THE LOOKOUT FOR LARGE HAIL AND WINDS UP TO 45 MPH WITH THIS STORM 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 MDT. RJK
Special weather statement, Jun 14, 3:36 PM MDT, 2 hours 15 minutes before
COZ033-035-142205- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 335 PM MDT SAT JUN 14 1997 ...STRONG THUNDERSTORMS OVER NORTH CENTRAL LARIMER COUNTY... AT 330 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 4 MILES NORTH OF RED FEATHER LAKES...OR ABOUT 32 MILES NORTHWEST OF FORT COLLINS. THE STORM WAS MOVING NORTHEAST AT 20 TO 25 MPH. PERSONS IN OR NEAR RED FEATHER LAKES AND VIRGINIA DALE SHOULD BE ON THE LOOKOUT FOR LARGE HAIL AND WINDS UP TO 45 MPH WITH THIS STORM 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 MDT. RJK
Special weather statement, Jun 14, 3:40 PM MDT, 2 hours 11 minutes before
COZ046-047-142210- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 335 PM MDT SAT JUN 14 1997 ...THUNDERSTORMS MAY BECOME SEVERE SHORTLY OVER PORTIONS OF LINCOLN AND ELBERT COUNTIES... AT 335 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN AREA OF THUNDERSTORMS STRENGHTENING RAPIDLY OVER SOUTHERN LINCOLN AND SOUTHERN ELBERT COUNTIES. THE STRONGEST STORM WAS LOCATED IN SOUTH CENTRAL ELBERT COUNTY...12 MILES NORTH OF THE TOWN OF RAMAH. STORMS WERE MOVING NORTH AT 15 TO 20 MPH. TORNADOES...LARGE HAIL...HEAVY RAIN...AND STRONG GUSTY WINDS WILL BE POSSIBLE WITH THESE STORMS. A TORNADO WATCH IS IN EFFECT FOR NEARLY ALL OF NORTHEAST COLORADO UNTIL 900PM MDT. BAKER
Special weather statement, Jun 14, 3:45 PM MDT, 2 hours 6 minutes before
COZ035-038-039-142220- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 345 PM MDT SAT JUN 14 1997 ...STRONG THUNDERSTORMS IN SOUTHEASTERN LARIMER AND CENTRAL BOULDER COUNTIES... AT 345 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS DEVELOPING OVER RIVERSIDE...OR ABOUT 33 MILES SOUTHWEST OF FORT COLLINS. THE STORMS WERE MOVING NORTHEAST AT 15 MPH. PERSONS IN OR NEAR SOUTHERN FORT COLLINS...NORTHWESTERN LONGMONT... BERTHOUD...DRAKE...GOLD HILL...HARMONY...JAMESTOWN...LOVELAND... LYONS...MASONVILLE...NEDERLAND...PEACEFUL VALLEY...RAYMOND...TIMNATH AND WARD SHOULD BE ON THE LOOKOUT FOR LARGE HAIL...STRONG WINDS...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. RJK
Special weather statement, Jun 14, 5:34 PM MDT, 17 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, 16 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
The 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, 4:39 PM MDT | Severe Thunderstorm Warning | BOU | Adams, Arapahoe, Denver | 51 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 |
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.