094
FXUS66 KSTO 091957
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
1257 PM PDT Mon Mar 9 2026


.KEY MESSAGES...

 - Dry and warm weather prevails, with slightly cooler yet still
   above-normal temperatures on Tuesday.

 - Well-above normal high temperatures expected Thursday onward,
   with areas of Minor HeatRisk in the Valley.

&&

.DISCUSSION...

...Today-Tuesday...
Temperatures will remain above-normal today as westerly flow
continues aloft and ridging builds over the Eastern Pacific.
A slight "cool down" is expected on Tuesday as ridging continues
to flatten out over Northern California, however temperatures will
still be a few degrees above normal. Winds will be light, with
occasionally breezy onshore flow through the Delta and southern
Sacramento Valley this evening.


...Wednesday-Sunday...
Ridging begins to strengthen and build over Northern California
by mid week, and is on track to dominate the synoptic pattern
through Sunday. Temperatures will climb well above-normal, with
Minor HeatRisk returning to the Valley Thursday onward. The NBM
is indicating a 60 to 90% chance of Valley high temperatures
greater than 80 degrees Wednesday through Sunday. Warmer overnight
lows compared to seasonal averages are expected during this time
as well. Relative humidities will also trend lower, especially
over the mountains and foothills with minimum values in the 20s
teens to low 30s.

Be sure to take extra precautions against heat related
illnesses when spending time outside. Additionally, locally water
ways are still running cold so be sure to practice cold water
safety if spending time on the water this week.

&&


.AVIATION...
VFR conditions are expected through the next 24 hours, with winds
at 5-10kts. Light and variable winds expected during the
overnight hours. Cloud development around 04-06z and continuing
through 15-17z. There is a slight chance for lower clouds to
develop as well, but that is around a 15-20 percent chance at this
time.

&&

.STO WATCHES/WARNINGS/ADVISORIES...
None.
&&

$$