Hazardous Weather Outlook
Issued by NWS Denver/Boulder, CO

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FLUS45 KBOU 211814
HWOBOU

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
1114 AM MST SAT FEB 21 2015

COZ030>051-220615-
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-
1114 AM MST SAT FEB 21 2015

...WINTER STORM WARNINGS IN EFFECT FOR MOUNTAINS...FOOTHILLS AND
MOST OF THE ADJACENT PLAINS THROUGH SUNDAY...

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

.DAY ONE...TODAY AND TONIGHT

AREAS OF SNOW WILL CONTINUE IN THE MOUNTAINS...FOOTHILLS AND ALONG
THE URBAN CORRIDOR THIS AFTERNOON AND TONIGHT. THE SNOW IS
EXPECTED TO BECOME HEAVIER AS ANOTHER COLD FRONT AND SURGE OF
COLDER AIR AND UPSLOPE FLOW MOVES INTO THE PLAINS AND FOOTHILLS
THROUGH THIS AFTERNOON. SNOWFALL RATES OF 3/4 TO 2 INCHES PER
HOUR WILL BE POSSIBLE LATE THIS AFTERNOON INTO THE MID AND LATE
EVENING HOURS IN AND NEAR THE FOOTHILLS AND PALMER DIVIDE.
OVERNIGHT AREAS OF LIGHT TO MODERATE SNOW WILL CONTINUE OVER MOST
AREAS.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

LIGHT SNOW WILL CONTINUE OVER MOST OF NORTHEAST AND NORTH CENTRAL
COLORADO SUNDAY AND SUNDAY EVENING. HOWEVER...ADDITIONAL
ACCUMULATIONS WILL STILL OCCUR DURING THIS LONG DURATION WINTER
STORM...AND A FEW BANDS OF HEAVIER SNOW ARE STILL POSSIBLE. AT
THIS TIME...THE HEAVIEST ADDITIONAL SNOWFALL IS EXPECTED TO OCCUR
FROM PARK AND SUMMIT COUNTY EAST AND NORTHEAST INTO THE FRONT
RANGE FOOTHILLS THROUGH SUNDAY EVENING. UNDER THE ARCTIC
AIRMASS...HIGH TEMPERATURES WILL STRUGGLE TO GET OUT OF THE TEENS
AT BEST ON SUNDAY WITH READINGS NEAR ZERO OVERNIGHT.

EXPECT HAZARDOUS WINTER DRIVING CONDITIONS THROUGH THE WEEKEND
ALONG WITH POTENTIAL ROAD CLOSURES IN THE MOUNTAINS. SECONDARY
ROADS MAY ALSO BECOME IMPASSABLE TO SOME VEHICLES IN AREAS THAT
SEE THE HEAVIER SNOW ACCUMULATIONS.

THIS ACTIVE WEATHER PATTERN WILL BRING ANOTHER THREAT OF
ACCUMULATING SNOW AND COLDER TEMPERATURES FOR LATE WEDNESDAY INTO
FRIDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT.
HOWEVER...ANY REPORTS OF ACCUMULATING SNOWFALL WILL BE
APPRECIATED.

$$
RJK/KRIEDERMAN



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