256
FXUS65 KTWC 260930
AFDTWC

Area Forecast Discussion
National Weather Service Tucson AZ
230 AM MST Wed Nov 26 2025

.SYNOPSIS...Warmer temperatures through Friday as above normal
temperatures prevail. Cooler temperatures return with highs near
normal Saturday and then additional cooling with below normal
temperatures Sunday and into next work week.  Dry conditions through
Saturday before a weather system potentially brings another chance
of valley rain and mountain snow Sunday and Monday.

&&

.DISCUSSION...Surface observations at 2 am showed isolated areas
of relative humidity values over 95 percent, mainly along I-10
between Tucson and Phoenix, which may lead to some light fog with
visibilities down to around 4-5 miles. Otherwise warmer today, up
2 to 6 degrees versus yesterday, with high pressure building
overhead.

Thanksgiving Day is forecast to be the warmest day of this week
with most locals seeing its warmest Turkey day since 2017.

Friday and Saturday: Temperatures cool back down to normal by
Saturday as a weather system moves through the Rockies.

Sunday and Monday: Per the latest deterministic models and
ensemble, this potential next precipitation maker is more
progressive with a glancing hit for the area. The NBM continues to
back off with less PoPs and QPF/high elevation snow for the area.
Cooler below normal high temperatures still on track.

&&

.AVIATION...Valid through 27/12Z.
Isold areas of light fog with vsbys 4-6 miles. Otherwise SKC thru
valid pd. SFC winds terrain and diurnally driven less than 10 kts
thru 26/15Z, then mainly ELY/SELY 8-14 kts with a few higher
gusts. Aviation discussion not updated for TAF amendments.

&&

.FIRE WEATHER...Dry conditions through Saturday, then a weather
system will bring a chance of valley rain and mountain snow Sunday
and Monday. Temperatures will continue to warm this week, peaking at
4 to 9 degrees above normal Thursday and Friday, before cooling to
much below normal values by Sunday and Monday. Min RH values
continue to lower, dropping to 20-30 percent Wednesday to Saturday,
before rising to 30-50 percent Sunday and Monday. 20-foot winds
Wednesday and Thursday will favor easterly to southeasterly
direction, otherwise normal diurnal trends with speeds 5 to 15 mph
and occasional afternoon gusts through Saturday then breezy 15 to 25
mph Sunday and Monday.

&&

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

&&

$$

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