977
FXUS65 KTWC 182140
AFDTWC

Area Forecast Discussion
National Weather Service Tucson AZ
240 PM MST Wed Sep 18 2024

.SYNOPSIS...Breezy and dry conditions with temperatures a few
degrees cooler than normal through the work week. Temperatures are
forecast to warm above normal again Sunday into next week.

&&

.DISCUSSION...Beautiful September day under southwest flow aloft.
Mostly clear cool nights and seasonal high temperatures to
continue into Friday. A weather system, currently off the central
California coast, will move across the state on Friday bringing
gusty winds Friday and cooler daytime temperatures on Saturday.

Upper ridging starts to build over the area on Sunday and will be
around for much of next week, bringing hotter daytime temperatures
to the area. A few ensemble members have near record highs late
next week with confidence level low. Weak low level easterly flow
will bring a modest moisture push into eastern zones during the
first half of next week. At this time we have a 10%-20% chance of
precipitation for the White mountains Tue/Wed.

&&

.AVIATION...Valid through 20/00Z.
FEW clouds between 7k and 9k ft AGl thru 19/03z otrw SKC-FEW
cirrus AOA 20k ft AGL thru fcst pd. SFC winds S/SW 10-15 kts with
ocnl gusts to 22 kts thru 19/02z then light and variable thru
19/17Z. Gusty winds return to terminal sites aft 19/19z. Aviation
discussion not updated for TAF amendments.

&&

.FIRE WEATHER...Dry conditions with temperatures near to a few
degrees below normal will continue through Saturday. Minimum
relative humidity down to 15 to 20 percent in lower elevations
with 20 to 35 percent in higher elevations. South to southwesterly
winds 10 to 15 mph with gusts up to 25 mph through Friday, then
becoming west to northwesterly on Saturday. Building high pressure
will bring lighter winds and above normal temperatures Sunday
into next week.

&&

.TWC WATCHES/WARNINGS/ADVISORIES...None.

&&

$$

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