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000
FXUS65 KFGZ 060414
AFDFGZ

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
900 PM MST THU DEC 5 2013

.SYNOPSIS...A VERY COLD AIR MASS WILL REMAIN ACROSS NORTHERN ARIZONA
THROUGH EARLY NEXT WEEK. HIGH AND LOW TEMPERATURES WILL REMAIN MUCH
BELOW NORMAL...AND ANOTHER STORM SYSTEM WILL BRING SNOW TO THE AREA
THIS WEEKEND.

&&

.DISCUSSION...CLEAR SKIES WERE BEING OBSERVED ACROSS NORTHERN
ARIZONA DURING THE EVENING HOURS. THE CURRENT FORECAST IS IN GOOD
SHAPE WITH NO UPDATES ANTICIPATED.

OTHERWISE...THE VERY COLD ARCTIC AIR MASS CURRENTLY OVER THE
SOUTHWEST WILL REMAIN IN PLACE THROUGH EARLY NEXT WEEK. DAYTIME
TEMPERATURES WILL STRUGGLE TO CLIMB ABOVE FREEZING IN ALL BUT THE
LOWEST ELEVATIONS. SOME LOCATIONS IN NORTHERN ARIZONA WILL SEE
OVERNIGHT LOW TEMPS BELOW ZERO DEGREES AGAIN TONIGHT.

ANOTHER ARCTIC FRONT WILL MOVE THROUGH NORTHERN ARIZONA THIS
WEEKEND. SNOW SHOULD DEVELOP ACROSS WESTERN ARIZONA SATURDAY
AFTERNOON AND SPREAD EASTWARD SATURDAY NIGHT...ENDING LATE SUNDAY.
SNOW LEVELS WILL FALL TO VALLEY FLOORS IN MOST LOCATIONS...WITH THE
POSSIBLE EXCEPTION OF FAR SOUTHWESTERN YAVAPAI COUNTY...BY SUNDAY
MORNING. CURRENT FORECASTS SUGGEST 1 TO 3 INCHES OF SNOW BELOW 5000
FEET...3 TO 6 INCHES ABOVE 5000 FEET...AND 6 TO 10 INCHES OVER THE
HIGHEST PEAKS. TEMPERATURES WILL REMAIN BELOW NORMAL DURING THIS
PERIOD.

RIDGING SLOWLY DEVELOPS OVER THE EASTERN PACIFIC NEXT WEEK BUT THE
RIDGE AXIS WILL REMAIN FAR TO OUR WEST. THIS WILL RESULT IN A
NORTHWESTERLY FLOW ALOFT...BREEZY NORTHEAST SURFACE WINDS...AND A
CONTINUATION OF BELOW AVERAGE TEMPERATURES. THE RIDGE FLATTENS BY
THE LATTER HALF OF THE WEEK ALLOWING A MODERATING PACIFIC AIR MASS
TO MOVE ACROSS THE SOUTHWEST.

&&

.AVIATION...FOR THE 06Z PACKAGE...EXPECT VFR CONDITIONS OVER THE
NEXT 24 HOURS. AVIATION DISCUSSION NOT UPDATED FOR AMENDMENTS.

&&

.FGZ WATCHES/WARNINGS/ADVISORIES...NONE.

&&

$$

PUBLIC.........MCCOLLUM/DB
AVIATION.......MCCOLLUM/BOHLIN

FOR NORTHERN ARIZONA WEATHER INFORMATION VISIT WEATHER.GOV/FLAGSTAFF