Hazardous Weather Outlook
Issued by NWS Denver/Boulder, CO

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FLUS45 KBOU 311819
HWOBOU

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
1119 AM MST SUN JAN 31 2016

COZ030>051-011830-
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-
1119 AM MST SUN JAN 31 2016

...PROLONGED WINTER STORM WITH HEAVY SNOW ACCUMULATIONS LIKELY FOR
MOST OF COLORADO...

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

.DAY ONE...TODAY AND TONIGHT

PERIODS OF LIGHT SNOW WILL BE POSSIBLE TODAY...MAINLY SOUTH OF
INTERSTATE 70. SNOW WILL THEN INCREASE FROM SOUTH TO NORTH THIS
EVENING AND THROUGH TONIGHT AS A PACIFIC STORM SYSTEM APPROACHES
COLORADO. ROADS ARE EXPECTED TO BECOME SNOW PACKED AND SLIPPERY
TONIGHT IN TIME FOR THE MONDAY MORNING COMMUTE. SNOW ACCUMULATIONS
TONIGHT WILL LIKELY BE 1 TO 4 INCHES OVER THE PLAINS...WITH
HIGHEST AMOUNTS NEAR THE FOOTHILLS....AND 3 TO 8 INCHES OVER THE
MOUNTAINS AND FOOTHILLS WITH HIGHEST AMOUNTS NEAR THE I70
CORRIDOR.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

SNOW WILL CONTINUE ACROSS THE OUTLOOK AREA MONDAY AND MONDAY
NIGHT AS A SLOW MOVING AND STRONG PACIFIC STORM SYSTEM PASSES OVER
COLORADO. THE HEAVIEST SNOWFALL WILL LIKELY OCCUR MONDAY
AFTERNOON AND EVENING BECAUSE OF A DEEP AND MOIST UPSLOPE FLOW.
SOME AREAS OF THE FRONT RANGE MOUNTAINS AND FOOTHILLS COULD SEE
1 TO 1.5 INCH PER HOUR SNOWFALL RATES DURING THIS TIME PERIOD.
SNOWFALL RATES ARE NOT EXPECTED TO BE AS GREAT AT LOWER
ELEVATIONS. HOWEVER BECAUSE OF THE LONG DURATION OF
SNOWFALL...SIGNIFICANT ACCUMULATIONS ARE STILL LIKELY. TOTAL SNOW
AMOUNTS BY MIDDAY TUESDAY COULD RANGE ANYWHERE FROM 6 TO 14 INCHES
ON THE PLAINS WITH THE HEAVIER AMOUNTS NEAR THE FOOTHILLS AND
ALONG THE I-70 CORRIDOR AND PALMER DIVIDE AREA OF THE PLAINS. IN
THE FRONT RANGE MOUNTAINS AND FOOTHILLS...LOOK FOR AMOUNTS RANGING
FROM 10 TO 24 INCHES WITH THE HEAVIER TOTALS ON EAST FACING
SLOPES.

STRONG AND GUSTY NORTHEAST WINDS STARTING MONDAY AFTERNOON AND
CONTINUING THROUGH TUESDAY ON THE HIGH PLAINS WILL PRODUCE AREAS
OF BLOWING AND DRIFTING SNOW. VISIBILITIES MAY BE SIGNIFICANTLY
REDUCED AND TRAVEL WILL LIKELY BECOME DIFFICULT ON THE EASTERN
PLAINS...WITH THE WORST CONDITIONS ANTICIPATED IN
ELBERT...WASHINGTON...AND LINCOLN COUNTIES. MUCH LIGHTER WINDS CAN
BE ANTICIPATED ALONG THE I-25 CORRIDOR AND IN THE MOUNTAINS.

THIS STORM SYSTEM HAS THE POTENTIAL TO DISRUPT AIR AND GROUND
TRAVEL ACROSS COLORADO AND SURROUNDING STATES MONDAY AND TUESDAY.
TRAVELERS SHOULD PREPARE TO MAKE ALTERNATE ARRANGEMENTS SHOULD
ROADS BE CLOSED AND FLIGHTS BE CANCELLED DUE TO INCLEMENT WINTER
WEATHER.

BEGINNING WEDNESDAY...CONDITIONS WILL GRADUALLY WARM AND DRY ON
THE PLAINS. FOR THE HIGH COUNTRY...A MOIST NORTHWEST FLOW AND THE
OCCASIONAL WEATHER DISTURBANCE WILL CONTINUE TO PRODUCE PERIODS
OF LIGHT SNOWFALL THROUGH SATURDAY.

STAY TUNED FOR THE LATEST UPDATES ON WHAT WILL LIKELY BE A MAJOR
SNOWSTORM FOR MOST OF COLORADO.

.SPOTTER INFORMATION STATEMENT...

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

$$


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