453  
WWUS75 KBOU 202000  
NPWBOU  
 
URGENT - WEATHER MESSAGE  
NATIONAL WEATHER SERVICE DENVER CO  
200 PM MDT SAT APR 20 2024  
 
COZ036-038>043-045-046-211500-  
/O.NEW.KBOU.FG.Y.0008.240420T2000Z-240421T1500Z/  
JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR  
CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET-LARIMER COUNTY  
BELOW 6000 FEET/NORTHWEST WELD COUNTY-BOULDER AND JEFFERSON  
COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY-NORTH DOUGLAS  
COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE  
COUNTIES/EAST BROOMFIELD COUNTY-ELBERT/CENTRAL AND EAST DOUGLAS  
COUNTIES ABOVE 6000 FEET-NORTHEAST WELD COUNTY-CENTRAL AND SOUTH  
WELD COUNTY-CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES-NORTH  
AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY-  
INCLUDING THE CITIES OF EATON, GROVER, AGATE, GOLDEN, EVERGREEN,  
CENTRAL CITY, NUNN, ARVADA, GREELEY, LITTLETON, BRIGHTON,  
LARKSPUR, GEORGETOWN, PAWNEE BUTTES, BYERS, HIGHLANDS RANCH, DEER  
TRAIL, LOVELAND, AURORA, FONDIS, RAYMER, IDAHO SPRINGS, KIOWA,  
HUGO, CASTLE ROCK, FORT LUPTON, BAILEY, CITY OF DENVER, DENVER  
INTERNATIONAL AIRPORT, LAKEWOOD, BOULDER, FORT COLLINS, STONEHAM,  
LIMON, ELBERT, WESTCREEK, BENNETT, PARKER, MATHESON, LEADER,  
HEREFORD, ROGGEN, LONGMONT, AND BRIGGSDALE  
200 PM MDT SAT APR 20 2024  
   
..DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM MDT SUNDAY
 
 
* WHAT...VISIBILITY ONE QUARTER MILE OR LESS IN DENSE FOG. NEAR ZERO  
VISIBILITY IN THE DENSEST FOG THIS AFTERNOON THROUGH TONIGHT.  
 
* WHERE...THE SOUTHERN FRONT RANGE FOOTHILLS, FORT COLLINS, BOULDER  
AND THE WESTERN SUBURBS OF DENVER, DENVER, CASTLE ROCK,  
BRIGGSDALE, GREELEY, BYERS, AND LIMON.  
 
* WHEN...UNTIL 9 AM MDT SUNDAY.  
 
* IMPACTS...LOW VISIBILITY COULD MAKE DRIVING CONDITIONS HAZARDOUS.  
 
* ADDITIONAL DETAILS...PATCHY DENSE FOG THIS AFTERNOON IS EXPECTED  
TO BECOME MORE WIDESPREAD THROUGH THE EVENING HOURS, ESPECIALLY  
ACROSS THE DENVER METRO.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
IF DRIVING, SLOW DOWN, USE YOUR HEADLIGHTS, AND LEAVE PLENTY OF  
DISTANCE AHEAD OF YOU.  
 

 
 

 
 
FOR MORE INFORMATION FROM THE NATIONAL WEATHER SERVICE, VISIT  
HTTPS://WEATHER.GOV/BOU  
 
HIRIS  
 
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