

525 

WGUS55 KBOU 130452

FFWBOU

COC013-059-130945-

/O.NEW.KBOU.FF.W.0066.130913T0452Z-130913T0945Z/

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



BULLETIN - EAS ACTIVATION REQUESTED

FLASH FLOOD WARNING

NATIONAL WEATHER SERVICE DENVER CO

1052 PM MDT THU SEP 12 2013



THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A



* FLASH FLOOD WARNING FOR...

  NORTHERN JEFFERSON COUNTY IN NORTHEAST COLORADO...

  BOULDER COUNTY IN NORTHEAST COLORADO...



* UNTIL 345 AM MDT



* AT 1045 PM MDT...WIDESPREAD AND LIFE THREATENING FLASH FLOODING 

  WAS OCCURRING ACROSS BOULDER AND NORTHERN JEFFERSON COUNTIES.   

 

...THIS IS A FLASH FLOOD EMERGENCY FOR BOULDER AND NORTHERN 

JEFFERSON COUNTY. SEEK HIGHER GROUND NOW! THIS IS LIFE THREATENING 

SITUATION! 



NEW EVACUATIONS HAVE BEEN ORDERED FROM THE MOUTH OF BOULDER CANYON 

ALONG BROADWAY...AND THEN PEARL TO MARINE.



WIDESPREAD FLASH FLOODING WAS CAUSING NUMEROUS AND WIDESPREAD ROAD 

CLOSURES WERE REPORTED ACROSS ALL OF BOULDER COUNTY...AS WELL AS 

NORTHWESTERN JEFFERSON COUNTY.  TRAVEL IS VIRTUALLY 

IMPOSSIBLE...STAY OFF THE ROADS AND STAY SAFE.



LEYDEN RESERVOIR IN NORTHWESTERN ARVADA IS ALSO RELEASING FLOWS AT A 

HIGH RATE...WITH EVACUATIONS NOW OCCURRING DOWNSTREAM OF THE DAM TO 

ALKIRE STREET.



DOPPLER RADAR INDICATED RAIN HAD DIMINISHED SOMEWHAT IN   

INTENSITY...BUT ANOTHER HALF INCH OF RAIN CAN STILL BE EXPECTED IN   

THE NEXT HOUR OR TWO.  THIS WILL CONTINUE TO PRODUCE FLASH   

FLOODING.



* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...

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

  LONGMONT...SOUTHWESTERN BROOMFIELD...LAFAYETTE...NORTHWESTERN

  GOLDEN...LOUISVILLE...SUPERIOR...LYONS...NEDERLAND...JAMESTOWN...

  WARD...SALINA...NIWOT...ELDORA...ALLENSPARK...WALLSTREET...ROCKY

  FLATS...BRAINARD LAKE...WHITE RANCH OPEN SPACE...ELDORADO

  SPRINGS...CRISMAN...GOLD HILL...SUMMERVILLE...PEACEFUL VALLEY...

  RAYMOND...MEEKER PARK...SUNSHINE AND LONGS PEAK.



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. 

TRAVEL IS NEARLY IMPOSSIBLE.



THIS IS A LIFE THREATENING SITUATION...INCLUDING PEOPLE ALONG 

BOULDER CREEK IN THE CITY OF BOULDER...IN THE FOURMILE BURN 

AREA...IN BOULDER CANYON....LEFTHAND CANYON...AND ST VRAIN CANYON 

THROUGH THE TOWN OF LYONS...ALONG SOUTH BOULDER CREEK THROUGH 

ELDORADO SPRINGS...AND COAL CREEK CANYON. HEAVY RAINFALL WILL CAUSE 

EXTENSIVE AND SEVERE FLASH FLOODING. NUMEROUS ROADS AND BRIDGES HAVE 

BEEN WASHED OUT.



TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD 

DEATHS OCCUR IN VEHICLES. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS 

HARDER TO RECOGNIZE THE DANGERS OF FLOODING.



&&



LAT...LON 4009 10510 3990 10514 3991 10516 3990 10516

      3989 10514 3990 10511 3982 10510 3972 10527

      3986 10540 3993 10541 3993 10565 4010 10561

      4026 10563 4026 10515



$$



BARJENBRUCH

