Hazardous Weather Outlook
Issued by NWS Denver/Boulder, CO

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FLUS45 KBOU 051010
HWOBOU

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
410 AM MDT THU MAY 5 2016

COZ030>051-061015-
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-
410 AM MDT THU MAY 5 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL
COLORADO.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. IT WILL BE DRY AND
UNSEASONABLY WARM TODAY ON THE PLAINS BENEATH A STRONG RIDGE OF
HIGH PRESSURE. IN THE MOUNTAINS A STRONG MAY SUN WILL PRODUCE
ISOLATED TO WIDELY SCATTERED SHOWERS BY AFTERNOON AND POSSIBLY A
FEW GUSTY THUNDERSTORMS BY MID TO LATE AFTERNOON. MOST OF THIS
SHOWER ACTIVITY SHOULD DISSIPATE THIS EVENING. AN INCREASE IN MID
AND HIGH-LEVEL CLOUDS OVERNIGHT WILL RESULT VERY MILD TEMPERATURES
FOR MOST AREAS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

THERE WILL BE A THREAT OF SEVERE THUNDERSTORMS LATE FRIDAY AND
SATURDAY.

A DEEP UPPER LEVEL STORM SYSTEM WILL MOVE INTO THE DESERT
SOUTHWEST LATE FRIDAY. AT THE SAME TIME...A WEAK COOL FRONT WILL
PUSH ACROSS THE WYOMING/COLORADO BORDER. THE COMBINATION OF THESE
TWO FEATURES MAY ALLOW A COUPLE STRONG TO SEVERE THUNDERSTORMS TO
DEVELOP...MOSTLY OVER THE NORTHERN BORDER AREA LATE FRIDAY
AFTERNOON AND EVENING. THE MAIN THREAT FROM THESE STORMS WOULD BE
LARGE HAIL.

THE SEVERE WEATHER THREAT WILL INCREASE ACROSS EASTERN COLORADO ON
SATURDAY. THE RISK OF SEVERE WEATHER WILL DEPEND ON EXACTLY HOW
FAR SOUTH A WEAK COLD FRONT PUSHES ACROSS THE PLAINS. THE MAIN
THREAT OF SEVERE WEATHER IS EXPECTED TO DEVELOP NEAR AND JUST
NORTH OF THIS FRONT SATURDAY AFTERNOON AND EVENING. WIND SHEAR AND
INSTABILITY WILL INCREASE AS THE STORM SYSTEM APPROACHES...BRINING
POTENTIAL FOR LARGE HAIL...DAMAGING WINDS...AND TORNADOES FROM
SEVERE THUNDERSTORMS.

THE UPPER LEVEL STORM SYSTEM WILL MOVE OVER THE CENTRAL ROCKIES
SUNDAY AND REMAIN OVER THE REGION INTO EARLY NEXT WEEK. THIS WILL
KEEP SHOWERS AND A FEW THUNDERSTORMS IN THE FORECAST EACH DAY.
HOWEVER...THE THREAT OF ANY SEVERE WEATHER WILL LOWER WITH THE
LOSS OF WIND SHEAR AND SUFFICIENT INSTABILITY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT.

$$
BAKER/MEIER



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