Flash Flood Warning 21, NWS Denver/Boulder, CO

Issued

Jul 29, 1997, 8:15 PM MDT (02:15 UTC)

Expired

Jul 29, 1997, 11:30 PM MDT

In force

3 hr

Issued by

NWS Denver/Boulder, CO

Area

Whole counties; the outline is the Mesonet’s reconstruction

County Larimer County, CO

The Cheyenne radar (KCYS), 50 km from the middle of the area, began a volume at 02:18 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 300216
FFWDEN
COC069-300515-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DENVER CO
815 PM MDT TUE JUL 29 1997

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A FLASH FLOOD
WARNING EFFECTIVE UNTIL 1130 PM MDT FOR PEOPLE IN THE FOLLOWING
COUNTIES

IN NORTH CENTRAL COLORADO
     NORTHEASTERN LARIMER

INCLUDING THE FOLLOWING LOCATIONS
     LIVERMORE...MISHOWAKA...POUDRE PARK...RED FEATHER LAKES...
     RUSTIC...TEDS PLACE AND VIRGINIA DALE

AT 811 PM MDT WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN
IN NORTHEAST LARIMER COUNTY FROM THE WYOMING BORDER SOUTH TO RED
RED FEATHER LAKES AND TEDS PLACE.  RAINFALL OF 1 TO 2 INCHES IN THE
PAST HOUR HAS BEEN DETECTED JUST NORTH OF RED FEATHER LAKES.  HEAVY RAIN
IS ALSO FALLING ON THE EASTERN SIDE OF FORT COLLINS BUT LESS THAN 1/2
INCH HAS BEEN OBSERVED THUS FAR.  

SATURATED SOIL FROM MONDAYS RAIN WILL ALLOW RUNOFF TO OCCUR IMMEDIATELY
IN THE AREA OF THE FLASH FLOOD WARNING.  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.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVnICE FORECAST OFFICE IN
DENVER.

LAT...LON 4100 10499 4064 10504 4065 10563 4099 10562

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.