

330 

WGUS75 KBOU 120920

FFSBOU



FLASH FLOOD STATEMENT

NATIONAL WEATHER SERVICE DENVER CO

320 AM MDT THU SEP 12 2013



COC013-059-121015-

/O.CON.KBOU.FF.W.0034.000000T0000Z-130912T1015Z/

/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

JEFFERSON CO-BOULDER CO-

320 AM MDT THU SEP 12 2013



...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 415 AM MDT FOR

NORTHERN JEFFERSON AND BOULDER COUNTIES...



...THIS IS A FLASH FLOOD EMERGENCY FOR BOULDER COUNTY...



EMERGENCY MANAGEMENT REPORTED COLLAPSED HOUSES NEAR JAMESTOWN. MAJOR 

FLOODING IS OCCURRING ON SOUTH SAINT VRAIN CREEK IN NORTHERN BOULDER 

COUNTY. THERE IS MODERATE TO MAJOR FLOODING IN THE FOURMILE BURN 

AREA WEST OF THE CITY OF BOULDER. THERE IS MODERATE FLOODING ON 

BOULDER CREEK THROUGH THE CITY OF BOULDER AND IN LEFTHAND CANYON. 

MINOR FLOODING IS FORECAST OR OCCURRING ON SAINT VRAIN CREEK THROUGH 

LYONS. MINOR FLOODING HAS BEEN OCCURRING ON SOUTH BOULDER CREEK IN 

SOUTHERN BOULDER COUNTY.



RAINFALL AMOUNTS HAVE BEEN FROM 4 TO 6 INCHES WITH LOCALLY OVER 7 

INCHES IN A FEW LOCATIONS.



SOME LOCATIONS EXPERIENCING FLOODING INCLUDE... NORTHWESTERN 

ARVADA...WESTERN WESTMINSTER...BOULDER...WESTERN 

BROOMFIELD...LAFAYETTE...LOUISVILLE...ERIE...SUPERIOR...LYONS... 

JAMESTOWN...SALINA...ELDORADO SPRINGS...CRISMAN...GOLD HILL... 

NIWOT...SUMMERVILLE...PEACEFUL VALLEY...ALLENSPARK...WALLSTREET... 

ROCKY FLATS...RAYMOND...MEEKER PARK...SUNSHINE AND WHITE RANCH OPEN 

SPACE.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



MOVE TO HIGHER GROUND NOW. THIS IS AN EXTREMELY DANGEROUS AND LIFE

THREATENING SITUATION. DO NOT ATTEMPT TO TRAVEL UNLESS YOU ARE

FLEEING AN AREA SUBJECT TO FLOODING OR UNDER AN EVACUATION ORDER.



THIS IS A LIFE THREATENING SITUATION FOR PEOPLE ALONG BOULDER CREEK

IN THE CITY OF BOULDER...IN THE FOURMILE BURN AREA...AND IN BOULDER

CANYON.  HEAVY RAINFALL WILL CAUSE EXTENSIVE AND SEVERE FLASH

FLOODING OF CREEKS AND STREAMS FROM THE FOURMILE BURN AREA DOWNSTREAM

THROUGH THE CITY OF BOULDER.  SOME DRAINAGE BASINS IMPACTED INCLUDE

BOULDER CREEK...FOURMILE CREEK...GOLD RUN...FOURMILE CANYON CREEK...

AND WONDERLAND CREEK.  SEVERE DEBRIS FLOWS CAN ALSO BE ANTICIPATED

ACROSS ROADS.  ROADWAYS AND BRIDGES MAY BE WASHED AWAY IN PLACES.  IF

YOU ENCOUNTER FLOOD WATERS...CLIMB TO SAFETY.



BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE

DANGERS OF FLOODING.



&&



LAT...LON 4011 10515 4010 10505 3996 10505 3994 10511

      3995 10513 3993 10515 3991 10510 3985 10509

      3978 10521 3977 10540 3992 10539 3994 10545

      4026 10555 4026 10524



$$



RPK

