141
FXUS66 KSTO 031802
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
1102 AM PDT Wed Jun 3 2026


.KEY MESSAGES...

 -Very warm conditions through Friday with some cooling starting
  Saturday through early next week. Widespread moderate HeatRisk.

 -Dry weather except for a chance of light showers Monday and
  Tuesday.

 -Breezy afternoon and evening winds through Sunday with low
  humidities bringing a few areas of elevated fire conditions.
&&

.DISCUSSION...

...Main update to the forecast is the introduction of low chances
of light rain showers Monday and Tuesday...

...Thursday and Friday...
Temperature forecast still on track. NBM probabilities suggesting
only a slight (less then 20%) of temperatures reaching 100
degrees. Temperatures will be above normal in the mid to upper
90s. Winds aloft will be from the west as a weather system drops
south out of the Gulf of Alaska which will bring delta breezes and
breezy winds at times.

...Saturday and Sunday...
The pre-mentioned upper trough starts to knock down heights over
the area while increasing westerly flow aloft. This will result in
temperatures dropping mostly out of the 90s and into the 80s.
Relative humidities remain low in the valley and combined with the
gusty winds will bring a few hours and aras of elevated fire
concerns through Sunday which is mainly in the north Sacramento
Valley.

The trouhging that sets up Saturday and Sunday will persist into
early next week. Some limited moisture also will then bring a
chance of a few light rain showers. The chances (generally less
then 30%) look to be confined to the foothills and mountains.

&&
.AVIATION...


VFR conditions at TAF sites over the next 24 hours. Northwest
surface winds sustained 10 to 15 kts with gusts 15 to 20 kts in
the north/central Sacramento Valley and northern San Joaquin
Valley between 22Z Wednesday and 05Z Thursday. In the Delta
vicinity, west winds sustained 10 to 15 kts with gusts to 20 kts
through 09Z Thursday, and again after 22Z Wednesday in the Delta
and mountains.

&&

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

$$