Alert archive / Colorado / Flash Flood Warnings in 1997
Flash Flood Warning 17, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this flash flood warning at Jul 29, 1997, 6:24 PM MDT for Elbert County, Colorado. It was in force for 96 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
- Jul 29, 1997, 6:24 PM MDT (00:24 UTC)
- Expired
- Jul 29, 1997, 8:00 PM MDT
- In force
- 96 min
- Issued by
- NWS Denver/Boulder, CO
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Elbert County, CO
The radar
The Denver radar (KFTG), 76 km from the middle of the area, began a volume at 00:24 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, 0.4 hours before the alert went out and 88 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
- 154 J/kg
- Mixed-layer CIN
- -82 J/kg
- Mixed-layer LCL
- 1447 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 67 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 300024
FFWDEN
COC039-300200-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DENVER CO
624 PM MDT TUE JUL 29 1997
THE NATIONAL WEATHER SERVICE IN DENVER HAS EXPANDED AND EXTENDED THE
FLASH FLOOD WARNING FOR ELBERT COUNTY. THE WARNING IS NOW IN EFFECT
UNTIL 800 PM FOR...
IN EAST CENTRAL COLORADO
EASTERN ELBERT
INCLUDING THE FOLLOWING LOCATIONS
AGATE...MATHESON...CEDAR POINT...AND SIMLA
AT 621 PM MDT WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS
WITH TORRENTIAL RAIN FROM AGATE TO 5 MILES WEST OF MATHESON. THESE
STORMS WERE PRODUCING BETWEEN 2 AND 3 INCHES OF RAIN IN AN HOUR OR
LESS.
THIS EXTREMELY HEAVY RAIN WILL CAUSE FLASH FLOODING OF SMALL CREEKS
AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES AND ARROYOS...AS
WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE. IF YOUR VEHIC6LE STALLS, ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND.
BARJENBRUCH
LAT...LON 3948 10373 3920 10377 3912 10399 3914 10406
3915 10425 3952 10400What forecasters said that day
The local office's own words before this flash flood 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, Jul 29, 3:50 PM MDT, 2 hours 34 minutes before
COZ040-041-045-292245- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 350 PM MDT TUE JUL 29 1997 ...SLOW MOVING THUNDERSTORMS CAPABLE OF HEAVY RAIN AND FUNNEL CLOUDS IN RURAL AREAS JUST EAST OF THE DENVER METRO AREA... AT 345 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN AREA OF THUNDERSTORMS EXTENDING SOUTHWEST TO NORTHEAST ACROSS WESTERN ELBERT...AND CENTRAL ARAPAHOE AND ADAMS COUNTIES. THESE STORMS HAD DEVELOPED IN THE PAST HOUR ALONG A NEARLY STATIONARY WIND SHIFT BOUNDARY INDICATED ON DOPPLER RADAR. DOPPLER RADAR HAS ESTIMATED RAINFALL AMOUNTS OF 1 TO 1 1/2 INCH OF RAIN IN THE PAST HOUR OVER EXTREME NORTHWEST ELBERT AND SOUTH CENTRAL ARAPAHOE COUNTIES. AT 343 PM MDT A SKYWARN STORM SPOTTER REPORTED A FUNNEL CLOUD 6 MILES SOUTH OF BYERS. THE STRONGEST STORM WAS LOCATED 10 MILES SOUTHEAST OF BENNETT...OR ABOUT 28 MILES SOUTHEAST OF DENVER. STORMS WERE MOVING EAST-NORTHEAST AT 10 TO 15 MILES PER HOUR. PERSONS IN OR NEAR SOUTHEASTERN AURORA...ARAPAHOE PARK...BENNETT... BYERS...COUNTRY GARDENS...ELIZABETH...FRANKTOWN...KIOWA...LEADER... MANILA VILLAGE...PARKER...PONDEROSA PARK...STRASBURG...THE PINERY AND WATKINS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER AND MOVE TO A PLACE OF SAFETY IF BAD WEATHER APPROACHES. FUNNEL CLOUDS...HEAVY RAIN...AND STRONG GUSTY WINDS MAY OCCUR WITH THESE STORM. 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. BAKER
Special weather statement, Jul 29, 5:13 PM MDT, 1 hour 11 minutes before
COZ044-300015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 513 PM MDT TUE JUL 29 1997 ...THUNDERSTORMS PRODUCING A FUNNEL CLOUD AND HEAVY RAIN ACROSS MORGAN COUNTY... AT 505 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN AREA OF THUNDERSTORMS OVER WESTERN MORGAN COUNTY. THE STRONGEST STORM WAS INDICATED ON RADAR 3 MILES EAST OF WIGGINS...OR ABOUT 12 MILES WEST OF FORT MORGAN. RADAR HAS ESTIMATED FROM 1 TO 1 1/2 INCHES OF RAIN FROM THESE THUNDERSTORMS IN THE PAST HOUR...WITH NEAR 2 INCHES ESTIMATED 6 MILES SOUTH OF WIGGINS ALONG STATE HIGHWAY 52. HEAVY RAINS FALLING ON ALREADY SATURATED GROUND MAY CAUSE MINOR FLOODING OF FIELDS... DITCHES AND LOW LANDS. IN ADDITION...AT 500 PM MDT THE PUBLIC REPORTED A FUNNEL CLOUD 8 MILES SOUTHEAST OF WIGGINS...OR ABOUT 13 MILES SOUTHWEST OF FORT MORGAN. THESE STORMS WERE MOVING NORTHEAST AT 15 TO 20 MILES PER HOUR. PERSONS IN OR NEAR ADENA SCHOOL...ANTELOPE SPRINGS...FORT MORGAN... LOG LANE VILLAGE...TWELVE-MILE CORNER...WELDONA AND WIGGINS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER AND MOVE TO A PLACE OF SAFETY IF BAD WEATHER APPROACHES. 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. BAKER
Special weather statement, Jul 29, 5:15 PM MDT, 1 hour 9 minutes before
COZ044-300015- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 513 PM MDT TUE JUL 29 1997 ...THUNDERSTORMS PRODUCING A FUNNEL CLOUD AND HEAVY RAIN ACROSS MORGAN COUNTY... AT 505 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED AN AREA OF THUNDERSTORMS OVER WESTERN MORGAN COUNTY. THE STRONGEST STORM WAS INDICATED ON RADAR 3 MILES EAST OF WIGGINS...OR ABOUT 12 MILES WEST OF FORT MORGAN. RADAR HAS ESTIMATED FROM 1 TO 1 1/2 INCHES OF RAIN FROM THESE THUNDERSTORMS IN THE PAST HOUR...WITH NEAR 2 INCHES ESTIMATED 6 MILES SOUTH OF WIGGINS ALONG STATE HIGHWAY 52. HEAVY RAINS FALLING ON ALREADY SATURATED GROUND MAY CAUSE MINOR FLOODING OF FIELDS... DITCHES AND LOW LANDS. IN ADDITION...AT 500 PM MDT THE PUBLIC REPORTED A FUNNEL CLOUD 8 MILES SOUTHEAST OF WIGGINS...OR ABOUT 13 MILES SOUTHWEST OF FORT MORGAN. THESE STORMS WERE MOVING NORTHEAST AT 15 TO 20 MILES PER HOUR. PERSONS IN OR NEAR ADENA SCHOOL...ANTELOPE SPRINGS...FORT MORGAN... LOG LANE VILLAGE...TWELVE-MILE CORNER...WELDONA AND WIGGINS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER AND MOVE TO A PLACE OF SAFETY IF BAD WEATHER APPROACHES. AVOID THESE AREAS AND DO NOT CR<OSS 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. BAKER
Special weather statement, Jul 29, 6:14 PM MDT, 10 minutes before
COZ046-049-300145- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 615 PM MDT TUE JUL 29 1997 ...WEATHER CONDITIONS RIGHT FOR HEAVY RAIN PRODUCING THUNDERSTORMS IN NORTHERN LINCOLN AND WASHINGTON COUNTIES... A LINE OF THUNDERSTORMS MOVING EAST INTO VERY MOIST AND UNSTABLE AIR LYING ACROSS NORTHERN LINCOLN AND WASHINGTON COUNTINES IN NORTHEAST COLORADO WILL LIKELY FUEL HEAVY RAIN PRODUCING THUNDERSTORMS BETWEEN 620 AND 745 PM MDT. NATIONAL WEATHER SERVICE DOPPLER RADAR AS OF 600 PM WAS ALREADY INDICATED NEW THUNDERSTORM DEVELOPMENT BETWEEN AKRON AND ANTON. THE POTENTIAL EXISTS FOR RAINFALL RATES OF 1 TO 3 INCHES PER HOUR FROM THESE THUNDERSTORMS MOVE EAST ACROSS WASHINGTON AND NORTHERN LINCOLN COUNTIES AT 10 TO 15 MILES PER HOUR. HEAVY RAIN FALLING ON ALREADY SATURATED GROUND MAY CAUSE FLOODING OF DRY CREEK BEDS...FIELDS...DITCHES AND LOW LANDS. LOW LYING ROADS MAY ALSO BECOME SUBMERGED OR WASHED" OUT BY FLOOD WATERS. BE PREPARED TO MOVE QUICKLY TO HIGH GROUND IF HIGH WATERS ARE OBSERVED. NORTHEAST COLORADO REMAINS UNDER A FLASH FLOOD WATCH UNTIL MIDNIGHT MDT TONIGHT. BAKER
Special weather statement, Jul 29, 6:15 PM MDT, 9 minutes before
COZ046-049-300145- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 615 PM MDT TUE JUL 29 1997 ...WEATHER CONDITIONS RIGHT FOR HEAVY RAIN PRODUCING THUNDERSTORMS IN NORTHERN LINCOLN AND WASHINGTON COUNTIES... A LINE OF THUNDERSTORMS MOVING EAST INTO VERY MOIST AND UNSTABLE AIR LYING ACROSS NORTHERN LINCOLN AND WASHINGTON COUNTINES IN NORTHEAST COLORADO WILL LIKELY FUEL HEAVY RAIN PRODUCING THUNDERSTORMS BETWEEN 620 AND 745 PM MDT. NATIONAL WEATHER SERVICE DOPPLER RADAR AS OF 600 PM WAS ALREADY INDICATED NEW THUNDERSTORM DEVELOPMENT BETWEEN AKRON AND ANTON. THE POTENTIAL EXISTS FOR RAINFALL RATES OF 1 TO 3 INCHES PER HOUR FROM THESE THUNDERSTORMS MOVE EAST ACROSS WASHINGTON AND NORTHERN LINCOLN COUNTIES AT 10 TO 15 MILES PER HOUR. HEAVY RAIN FALLING ON ALREADY SATURATED GROUND MAY CAUSE FLOODING OF DRY CREEK BEDS...FIELDS...DITCHES AND LOW LANDS. LOW LYING ROADS MAY ALSO BECOME SUBMERGED OR WASHED OUT BY FLOOD WATERS. BE PREPARED TO MOVE QUICKLY TO HIGH GROUND IF HIGH WATERS ARE OBSERVED. NORTHEAST COLORADO REMAINS UNDER A FLASH FLOOD WATCH UNTIL MIDNIGHT MDT TONIGHT. BAKER
Special weather statement, Jul 29, 6:15 PM MDT, 9 minutes before
COZ046-049-300145- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DENVER CO 615 PM MDT TUE JUL 29 1997 ...WEATHER CONDITIONS RIGHT FOR HEAVY RAIN PRODUCING THUNDERSTORMS IN NORTHERN LINCOLN AND WASHINGTON COUNTIES... A LINE OF THUNDERSTORMS MOVING EAST INTO VERY MOIST AND UNSTABLE AIR LYING ACROSS NORTHERN LINCOLN AND WASHINGTON COUNTIES IN NORTHEAST COLORADO WILL LIKELY FUEL HEAVY RAIN PRODUCING THUNDERSTORMS BETWEEN 620 AND 745 PM MDT. NATIONAL WEATHER SERVICE DOPPLER RADAR AS OF 600 PM WAS ALREADY INDICATED NEW THUNDERSTORM DEVELOPMENT BETWEEN AKRON AND ANTON. THE POTENTIAL EXISTS FOR RAINFALL RATES OF 1 TO 3 INCHES PER HOUR FROM THESE THUNDERSTORMS MOVE EAST ACROSS WASHINGTON AND NORTHERN LINCOLN COUNTIES AT 10 TO 15 MILES PER HOUR. HEAVY RAIN FALLING ON ALREADY SATURATED GROUND MAY CAUSE FLOODING OF DRY CREEK BEDS...FIELDS...DITCHES AND LOW LANDS. LOW LYING ROADS MAY ALSO BECOME SUBMERGED OR WASHED OUT BY FLOOD WATERS. BE PREPARED TO MOVE QUICKLY TO HIGH GROUND IF HIGH WATERS ARE OBSERVED. NORTHEAST COLORADO REMAINS UNDER A FLASH FLOOD WATCH UNTIL MIDNIGHT MDT TONIGHT. BAKER
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 7:03 PM MDT | Flash Flood Warning | BOU | Logan, Weld | 72 min |
| Jul 29, 7:59 PM MDT | Flash Flood Warning | BOU | Elbert, Lincoln | 2 hr |
| Jul 29, 8:00 PM MDT | Flash Flood Warning | BOU | Logan, Weld | 90 min |
| Jul 29, 8:15 PM MDT | Flash Flood Warning | BOU | Larimer | 3 hr |
| Jul 29, 8:20 PM MDT | Flash Flood Warning | BOU | Morgan | 55 min |
| Jul 29, 9:20 PM MDT | Flash Flood Warning | BOU | Morgan | 40 min |
| Jul 29, 9:40 PM MDT | Flash Flood Warning | BOU | Logan, Weld | 80 min |
| Jul 29, 9:55 PM MDT | Flash Flood Warning | BOU | Elbert, Lincoln | 2 hr |
| Jul 29, 10:10 PM MDT | Flash Flood Warning | BOU | Morgan | 50 min |
| Jul 29, 10:50 PM MDT | Flash Flood Warning | BOU | Logan, Morgan, Washington, Weld | 2 hr |
| Jul 29, 11:26 PM MDT | Flash Flood Warning | BOU | Elbert, Lincoln | 2 hr |
| Jul 30, 2:25 PM MDT | Flash Flood Warning | BOU | Larimer | 110 min |
| Jul 30, 3:25 PM MDT | Flash Flood Warning | BOU | Boulder, Clear Creek, Gilpin, Jefferson | 2 hr |
| Jul 30, 4:05 PM MDT | Flash Flood Warning | BOU | Boulder, Jefferson | 115 min |
| Jul 30, 4:05 PM MDT | Severe Thunderstorm Warning | BOU | Boulder, Jefferson | 115 min |
| Jul 30, 4:30 PM MDT | Flash Flood Warning | BOU | Logan | 14 hr |
Nearby
Flash Flood Warnings in Colorado, 1997Every flash flood 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.