Area Forecast Discussion
Issued by NWS Tucson, AZ

Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

FXUS65 KTWC 151550

Area Forecast Discussion
National Weather Service Tucson AZ
850 AM MST Mon Jan 15 2018

.SYNOPSIS...Very warm mid-January afternoon temperatures and
generally dry conditions will persist through the upcoming week. A
pattern change late in the week into next weekend should bring much
cooler temperatures and the chance of valley rain and mountain snow
Friday night and Saturday.


.DISCUSSION...Satellite imagery this morning showed scattered to
broken high alto cumulus and cirrus clouds moving across the area.
Ran out a quick update to the sky conditions last hour to account
for more mostly cloudy conditions this morning versus partly
cloudy especially from Tucson west. This cloud cover will continue
to push on east today. Highs on this MLK holiday will be 2-5
degrees cooler than Sunday.

Quick moving weather system will impact the area Tuesday night
into Wednesday, bringing cooler temperatures to the area next two
days along with a chance of snow showers to the White Mountains.

Warmer Thursday and Friday before a more significant weather
system impacts the area next weekend. More on this in the
afternoon discussion.


.AVIATION...Valid thru 16/12Z.
SCT-BKN clouds between 20-25k ft AGL will persist into tonight.
Expect SFC winds to remain diurnal in nature and less than 12 kts
into this evening. Then, SFC wind generally to the east of Tucson
will become ELY/SELY 15-20 kts. Aviation discussion not updated for
TAF amendments.


.FIRE WEATHER...Warm and dry conditions will continue today. A
passing disturbance will create gusty easterly winds Tuesday, as
well as a slight chance of light showers mainly in the White
Mountains Tuesday night into Wednesday. Things will dry out for
Thursday before another system moves through Friday night and
Saturday, bringing with it cooler temperatures, increased
westerly/southwesterly winds, and a better chance of valley rain and
mountain snow showers.





Visit us on Facebook...Twitter...YouTube...and at is the U.S. government's official web portal to all federal, state and local government web resources and services.