Hazardous Weather Outlook
Issued by NWS Denver/Boulder, CO

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FLUS45 KBOU 231011
HWOBOU

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
411 AM MDT SAT MAY 23 2015

COZ030>051-241015-
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-
411 AM MDT SAT MAY 23 2015

...FLASH FLOOD WATCH FOR THE NORTHEAST PLAINS THIS AFTERNOON
THROUGH THIS EVENING...

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

.DAY ONE...TODAY AND TONIGHT

A STORM SYSTEM OVER EASTERN UTAH WILL MOVE SLOWLY INTO WESTERN
COLORADO BY TONIGHT. THIS SYSTEM WILL COMBINE WITH ABUNDANT
MOISTURE AND ALLOW FOR ANOTHER ROUND OF SHOWERS AND THUNDERSTORMS
ACROSS MUCH OF THE AREA THIS AFTERNOON INTO THE EARLY EVENING
HOURS.

A FEW SEVERE STORMS WILL BE POSSIBLE OVER THE PLAINS OF NORTHEAST
COLORADO WITH LARGE HAIL AND A FEW TORNADOES. IN ADDITION THERE
WILL BE SOME HEAVY RAINFALL AS WELL WITH SOME AREAS OVER THE
PLAINS RECEIVING 1 TO 2 INCHES OF RAIN IN A SHORT PERIOD OF TIME.
THIS MAY CAUSE SOME FLASH FLOODING DUE TO SATURATED SOILS.


.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

SUBTLE DAY TO DAY TEMPERATURE AND PRECIPITATION CHANCES ARE IN
STORE FOR THE FORECAST AREA DURING THE UPCOMING WEEK. SUNDAY AND
WEDNESDAY WILL HAVE THE BEST CHANCE OF SHOWERS AND THUNDERSTORMS
WITH PASSING WEATHER SYSTEMS. MONDAY AND TUESDAY WILL BE DRIER AND
WARMER WITH A PASSING HIGH PRESSURE RIDGE. ALTHOUGH DAYTIME
HEATING AND RESIDUAL MOISTURE ARE LIKELY TO PRODUCE SCATTERED
AFTERNOON AND EVENING SHOWERS AND THUNDERSTORMS BOTH DAYS...
MAINLY OVER AND NEAR THE MOUNTAINS. BY LATE IN THE WEEK...WETTER
AND COOLER CONDITIONS COULD RETURN WITH UPSLOPE FLOW AND A PASSING
PACIFIC STORM SYSTEM. TEMPERATURES THROUGH THE PERIOD WILL RANGE
FROM NEAR TO SLIGHTLY BELOW AVERAGE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED OVER NORTHEAST COLORADO BY 1 PM.

$$
RPK/BAKER


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