Flash Flood Warning 38, NWS Denver/Boulder, CO

Issued

Jul 31, 1997, 6:15 PM MDT (00:15 UTC)

Expired

Jul 31, 1997, 9:15 PM MDT

In force

3 hr

Issued by

NWS Denver/Boulder, CO

Area

Whole counties

County Elbert County, CO

The Denver radar (KFTG), 66 km from the middle of the area, began a volume at 00:18 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.

000 
TTAA00 KDEN 010020 RRA
FFWDEN
COC039-010315-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DENVER CO
615 PM MDT THU JUL 31 1997

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A FLASH FLOOD
WARNING EFFECTIVE UNTIL 915 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTIES

IN EAST CENTRAL COLORADO
     NORTHERN ELBERT

INCLUDING THE FOLLOWING LOCATIONS
     AGATE...ELBERT...ELIZABETH...KIOWA AND PONDEROSA PARK

AT 615 PM MDT WEATHER RADAR DETECTED ANOTHER STRONG THUNDERSTORM 
MOVING INTO THE SOUTHWEST CORNER OF ELBERT COUNTY.  THIS THUNDERSTORM
APPEARS TO BE DUMPING UP TO 1 INCH OR RAIN PER HOUR.  SINCE THE GROUND
IN ELBERT COUNTY IS ALREADY SATURATED FROM RECENT RAINS THIS ADDITIONAL
RAINFALL WILL RUNOFF IMMEDIATELY.  CREEKS AND STREAMS IN ELBERT COUNTY
ARE ALREADY RUNNING HIGH AND THE ADDITIONAL RUNOFF IS LIKELY TO CAUSE
THEM TO OVERFLOW THEIR BANKS IN SOME AREAS.

EXCESSIVE RUNOFF FROM THIS STORM 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.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

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 VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND.

END...BOODA...WSFO DENVER
$$
LAT...LON 3927 10373 3914 10466 3955 10467 3955 10375

In the hours before

COZ041-312045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
200 PM MDT THU JUL 31 1997

...THUNDERSTORMS WITH HEAVY RAIN IN WESTERN ELBERT COUNTY...

AT 155 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH HEAVY RAIN OVER WESTERN ELBERT COUNTY.  SMALL
HAIL IS ALSO POSSIBLE WITH THE STORMS.

THE STORMS WERE MOVING NORTHEAST AT 20 MILES PER HOUR.

DOPPLER RADAR ESTIMATED UP TO AN INCH AN HOUR HAD FALLEN SOUTHWEST
OF KIOWA.

PERSONS IN OR NEAR ELIZABETH AND KIOWA SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER AND MOVE TO A PLACE OF SAFETY IF BAD WEATHER
APPROACHES.

SOME ROADS MAY BE COVERED WITH WATER.  DO NOT ATTEMPT TO DRIVE
THROUGH WATER OF UNKNOWN DEPTH.

A FLASH FLOOD WATCH IS IN EFFECT FOR MUCH OF NORTHEAST COLORADO
UNTIL MIDNIGHT TONIGHT.

LESZCYNSKI

COZ041-312045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
200 PM MDT THU JUL 31 1997

...THUNDERSTORMS WITH HEAVY RAIN IN WESTERN ELBERT COUNTY...

AT 155 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH HEAVY RAIN OVER WESTERN ELBERT COUNTY.  SMALL
HAIL IS ALSO POSSIBLE WITH THE STORMS.

THE STORMS WERE MOVING NORTHEAST AT 20 MILES PER HOUR.

DOPPLER RADAR ESTIMATED UP TO AN INCH AN HOUR HAD FALLEN SOUTHWEST
OF KIOWA.

PERSONS IN OR NEAR ELIZABETH AND KIOWA SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER AND MOVE TO A PLACE OF SAFETY IF BAD WEATHER
APPROACHES.

SOME ROADS MAY BE COVERED WITH WATER.  DO NOT ATTEMPT TO DRIVE 0
THROUGH WATER OF UNKNOWN DEPTH.

A FLASH FLOOD WATCH IS IN EFFECT FOR MUCH OF NORTHEAST COLORADO
UNTIL MIDNIGHT TONIGHT.

LESZCYNSKI

COZ040-312245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DENVER CO
404 PM MDT THU JUL 31 1997

...THUNDERSTORMS PRODUCING HEAVY RAIN IN OVER NORTH CENTRAL
DOUGLAS...WESTERN ARAPAHOE...SOUTHWESTERN DENVER AND SOUTHWESTERN
ADAMS COUNTIES...

AT 405 PM MDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM OVER SOUTH GLENN...OR ABOUT 10 MILES SOUTH OF DENVER.
THIS STORM WAS MOVING NORTHEAST AT 20 MILES PER HOUR AND PRODUCING
RAINFALL AMOUNTS OF UP TO 0.50 INCHES OF RAIN PER HOUR.

PERSONS IN OR NEAR AURORA...SOUTHERN DENVER...ENGLEWOOD...
LITTLETON...ARAPAHOE PARK...CHATFIELD RESERVOIR...GREENWOOD
VILLAGE...HIGHLANDS RANCH AND SHERIDAN SHOULD BE ON THE LOOKOUT FOR
HEAVY RAINFALL.  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.

SHORT LIVED WEAK TORNADOES ARE ALSO POSSIBLE WITH THIS STORM.

RJK

Flash Flood Warnings in Colorado, 1997Every flash flood warning in 1997

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.