974  
FLUS45 KBOU 201720  
HWOBOU  
 
HAZARDOUS WEATHER OUTLOOK  
NATIONAL WEATHER SERVICE DENVER/BOULDER CO  
1120 AM MDT MON MAY 20 2024  
 
COZ030>051-211730-  
JACKSON COUNTY BELOW 9000 FEET-  
WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET-  
GRAND AND SUMMIT COUNTIES BELOW 9000 FEET-  
SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/  
NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET-  
SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/  
GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE  
9000 FEET-LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET-  
JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR  
CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET-  
CENTRAL AND SOUTHEAST PARK COUNTY-  
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-MORGAN COUNTY-  
CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES-  
NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN  
COUNTY-  
SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY-  
LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY-  
1120 AM MDT MON MAY 20 2024  
   
..SEVERE STORM CONFIDENCE INCREASING...WITH LARGE HAIL
 
DAMAGING  
WINDS...AND TORNADOES LATE THIS AFTERNOON THROUGH THE EVENING...  
 
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL  
COLORADO.  
   
DAY ONE
 
TODAY AND TONIGHT  
 
SEVERE THUNDERSTORMS ARE EXPECTED TO DEVELOP ACROSS NORTHEAST  
COLORADO THIS AFTERNOON. DAMAGING HAIL AND WINDS, AND EVEN A  
COUPLE TORNADOES WILL BE POSSIBLE. THE STRONGER STORMS ARE  
EXPECTED TO BEGIN DEVELOPING OVER THE SOUTHERN AND EASTERN  
PORTIONS OF METRO DENVER OR THE PALMER DIVIDE TOWARD MID TO LATE  
AFTERNOON, AND THEN BECOME MORE NUMEROUS AS THEY SPREAD NORTHEAST  
ACROSS THE PLAINS THROUGH THIS EVENING.  
 
THERE IS A RISK OF TORNADOES IN THE SOUTH AND EAST PORTIONS OF THE  
METRO DENVER AREA MID TO LATE AFTERNOON, WHILE THE GREATEST RISK  
OF SEVERE WEATHER INCREASES ACROSS THE NORTHEAST PLAINS THROUGH  
THIS EVENING.  
 
IT'S A GOOD AFTERNOON AND EVENING TO STAY WEATHER READY, AND BE  
READY TO TAKE ACTION SHOULD HAZARDOUS WEATHER APPROACH YOUR  
LOCATION!  
   
DAYS TWO THROUGH SEVEN
 
TUESDAY THROUGH SUNDAY  
 
SCATTERED TO NUMEROUS SHOWERS AND EMBEDDED STORMS ARE LIKELY  
TUESDAY THROUGH WEDNESDAY MORNING. NON-SEVERE STORMS MAY PRODUCE  
SMALL AND HAIL AND GUSTY WINDS UP TO 35 MPH. LIGHT SNOW WILL BEGIN  
FOR AREAS ABOVE 9 THOUSAND FEET ELEVATION BRINGING SLICK TRAVEL  
ALONG MOUNTAIN PASSES. SNOWFALL TOTALS RANGE FROM 2-5 INCHES.  
 
WEDNESDAY THROUGH FRIDAY WILL BE WARMER AND DRIER ACROSS THE REGION.  
ISOLATED SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE EACH AFTERNOON,  
MAINLY ACROSS THE HIGH COUNTRY.  
   
SPOTTER INFORMATION STATEMENT
 
 
SPOTTER ACTIVATION WILL BE NEEDED FROM 2 PM TO MIDNIGHT.  
 

 
 
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