

http://www.wrh.noaa.gov/fgz
fxus65 kfgz 182213
afdfgz
Area forecast discussion
National Weather Service Flagstaff Arizona
310 PM MST Thursday Jan 20 2007
Synopsis...a low pressure center along the northern Baja California coast will
begin to move inland this evening. This low will track across
southern Arizona Thursday and into New Mexico by Saturday morning.
Expect increasing clouds tonight with a chance of rain and snow
developing by Friday morning. The heaviest snowfall is expected from
Happy Jack and northern Gila County eastward to the White Mountains.
Brief clearing can be expected Saturday night before a colder storm
from the northern rockies moves into northeastern Arizona late
Sunday through Tuesday.
&&
Discussion...the low pressure center that has been moving down the
West Coast is beginning to turn eastward this afternoon. The high
level cloud shield that has been streaming over southern and eastern
Arizona today is thinning this afternoon. The low tracks across
southern Arizona and just south of the White Mountains. This will
pull moisture across northern Arizona. Northern Gila County...eastern
Mogollon Rim...and White Mountains will be the most favorable
locations for heavier precipitation beginning by 12z Friday. A Winter
Storm Watch has been issued for these areas. As the low moves across
the state...moisture will wrap around the low bringing chances of
precipitation to most of the County Warning Area. Snow levels will start at around
6000 feet early Friday...falling to around 4500 to 5000 feet
Saturday morning. Precipitation will end from west to east Saturday
afternoon. Another low pressure center over the northern rockies is
expected to move into northeastern Arizona by late Sunday. This will
bring a reinforcing shot of cold air and a chance for snow showers
through Monday. The chance for snow should remain east of Flagstaff
with this storm.