

971 

WGUS75 KBOU 130418

FFSBOU



FLASH FLOOD STATEMENT

NATIONAL WEATHER SERVICE DENVER CO

1018 PM MDT THU SEP 12 2013



COC013-059-130530-

/O.CON.KBOU.FF.W.0058.000000T0000Z-130913T0530Z/

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

JEFFERSON CO-BOULDER CO-

1018 PM MDT THU SEP 12 2013



...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1130 PM MDT

THURSDAY FOR NORTHWESTERN JEFFERSON AND BOULDER COUNTIES...



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

JEFFERSON COUNTY...



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.



RADAR AND AUTOMATED RAIN GAUGES INDICATED THAT HEAVY RAIN WAS 

FALLING IN THE FOOTHILS OF BOULDER COUNTY INTO NORTHWEST JEFFERSON 

COUNTY. 

 

BETWEEN 1 AND 1.5 INCHES OF RAIN HAS FALLEN IN THE LAST 3 

HOURS...WITH ANOTHER ONE HALF TO 1 INCH EXPECTED THROUGH THE 

MIDNIGHT HOUR....MAINLY IN AND RIGHT NEXT TO THE FOOTHILLS.



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...AND ALONG SOUTH BOULDER CREEK THROUGH 

ELDORADO SPRINGS. 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.



&&



LAT...LON 4026 10518 4008 10509 3993 10515 3990 10514

      3991 10516 3988 10515 3981 10517 3974 10530

      3989 10541 3993 10540 3994 10544 3997 10546

      4026 10546



$$



BARJENBRUCH

