Area Forecast Discussion
Issued by NWS Flagstaff, AZ

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000
FXUS65 KFGZ 300347
AFDFGZ

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
847 PM MST MON SEP 29 2014

.SYNOPSIS...
COOL DRY AIR WILL MOVE IN FROM THE WEST AS THE LOW
PRESSURE SYSTEM EXITS THE REGION. EXPECT COOLER NIGHTS WITH LITTLE
PRECIPITATION FORECAST THROUGH THE REMAINDER OF THE WEEK. A WEAK
TROUGH WILL BRUSH THROUGH UTAH ON WEDNESDAY WITH HIGHER CLOUD COVER
AND SLIGHT CHANCES FOR LIGHT SHOWERS OVER THE UTAH BORDER REGION.
THE PACIFIC RIDGE WILL BUILD INTO ARIZONA ON FRIDAY WITH WARMER HIGH
TEMPERATURES FORECAST THROUGH THE UPCOMING WEEKEND.

&&

.DISCUSSION...MOSTLY CLEAR SKIES ARE BEING OBSERVED THIS EVENING
ACROSS NORTHERN ARIZONA. OTHER THAN A FEW CLOUDS ALONG THE AZ/UT
BORDER...CLEAR SKIES WILL CONTINUE OVERNIGHT. NO FORECAST UPDATES
ARE NEEDED AND THE PREVIOUS DISCUSSION STILL APPLIES.

&&

.PREVIOUS DISCUSSION (330 PM MST)...
A LARGE LOW PRESSURE SYSTEM CUT-OFF FROM THE POLAR
FRONT JET WILL CONTINUE TO DRIFT EASTWARD THROUGH UTAH THIS EVENING.
SHOWER ACTIVITY ALONG THE UTAH AND NEW MEXICO BORDER WILL DIMINISH
AFTER SUNSET. DRIER WESTERLY FLOW ALOFT HAS FIRMLY REPLACED THE
MOIST SOUTHERLY FLOW PATTERN. THE DRIER FALL CONDITIONS AND CLEAR
SKIES WILL LEAD TO OVERNIGHT AND MORNING TEMPERATURES APPROACHING
FREEZING IN PORTIONS OF THE HIGH COUNTRY.

WEDNESDAY THROUGH SUNDAY...ANOTHER WEAK TROUGH MOVING THROUGH UTAH
ON WEDNESDAY WILL BRING SLIGHT CHANCES FOR LIGHT SHOWERS TO THE UTAH
BORDER REGION. ELSEWHERE DRY CONDITIONS WILL PREVAIL THROUGH MUCH OF
THE UPCOMING WORK WEEK. BY FRIDAY...THE PACIFIC RIDGE WILL BUILD
INTO ARIZONA WARMING UP OUR HIGH TEMPERATURES IN NORTHERN ARIZONA BY
AROUND 5 DEGREES FAHRENHEIT. THESE WARMER DAY TIME TEMPERATURES
ALONG WITH SUNNY SKIES WILL PERSIST FROM FRIDAY INTO THE UPCOMING
WEEKEND. A GREAT WEEKEND FOR OUTDOOR ACTIVITIES.

&&

.AVIATION...
FOR THE 06Z PACKAGE...VFR CONDITIONS WILL PERSIST FOR THE NEXT 24
HOURS WITH MOSTLY CLEAR SKIES. GENERALLY LIGHT SW-W WINDS ARE
FORECAST FOR TUESDAY AFTERNOON. AVIATION DISCUSSION NOT UPDATED
FOR AMENDMENTS.

&&

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

&&

$$

PUBLIC.........MCS/BOHLIN
AVIATION.......MCS/JJ

FOR NORTHERN ARIZONA WEATHER INFORMATION VISIT
WEATHER.GOV/FLAGSTAFF





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