Area Forecast Discussion
Issued by NWS Flagstaff, AZ

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000
FXUS65 KFGZ 011027
AFDFGZ

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
327 AM MST FRI AUG 1 2014

.SYNOPSIS...
MODERATE THUNDERSTORM ACTIVITY WILL CONTINUE OVER NORTHERN
ARIZONA THROUGH FRIDAY. OVER THE WEEKEND...MOISTURE AND THE CHANCE
OF STORMS IS EXPECTED TO INCREASE AS HIGH PRESSURE SHIFTS TOWARD
THE FOUR CORNERS AREA AND A WEAK WEATHER DISTURBANCE MOVES ACROSS
ARIZONA FROM THE SOUTH.

&&

.DISCUSSION...
ISOLATED SHOWERS AND THUNDERSTORMS HAVE CONTINUED OVERNIGHT ACROSS
NORTHERN ARIZONA...WITH AN INCREASE IN ACTIVITY ANTICIPATED DURING
THE AFTERNOON HOURS. A MORE SUBSTANTIAL INCREASE IN MOISTURE AND
THUNDERSTORMS IS FORECAST OVER THE WEEKEND...WHEN NORTHERN ARIZONA
REMAINS BETWEEN HIGH PRESSURE TO THE EAST AND A TROUGH MOVING FROM
NORTHERN BAJA NORTHWARD THROUGH WESTERN AZ. THIS SHOULD RESULT IN
A MARKED INCREASE IN SHOWER AND THUNDERSTORM ACTIVITY AND COOLER
TEMPERATURES. STAY TUNED TO THE FORECAST THIS WEEKEND...ESPECIALLY
IF PLANNING OUTDOOR ACTIVITIES.

&&

.AVIATION...
FOR THE 12Z PACKAGE...MONSOON MOISTURE WILL REMAIN OVER NORTHERN
ARIZONA. ISOLATED SHOWERS UNDER SCT-BKN SKIES AND 9-12 KFT AGL
CEILINGS UNTIL 17Z. AFTER 17Z...SCT-NMRS SHOWERS AND STORMS WILL
DEVELOP...DIMINISHING IN COVERAGE AFTER 03Z. WIND GUSTS TO 35 KTS
NEAR STORMS. AVIATION DISCUSSION NOT UPDATED FOR AMENDMENTS.

&&

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

&&

$$

PUBLIC.........KD
AVIATION.......MCCOLLUM

FOR NORTHERN ARIZONA WEATHER INFORMATION VISIT
WEATHER.GOV/FLAGSTAFF








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