Spanish Ranch, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

416
FXUS66 KSTO 292027
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
127 PM PDT Tue Apr 29 2025

For additional details on weather and expected impacts over the
next 7 days, please visit weather.gov/sto/briefing.


.Discussion...

.Synopsis...
Two mostly minor impact weather systems to impact the area over
the next 7 days. The first system will drop into the area
Wednesday and bring a pretty good chance (40% to 60%) of showers
and thunderstorms to foothills and higher terrain to areas south
of Highway 50 tomorrow afternoon and evening. For the most part
weather will be dry and mild until the stronger system moves into
the area Saturday bringing cooler temperatures and widespread
chance of light precipiitation...with light accumulations of snow
above 6000 feet in the Sierra.

&&

.Key Messages...

* Wednesday:

 -Good chance (40-60%) of showers and thunderstorms mainly south
   of highway 50 afternoon and evening.

* Friday into Sunday
    -Cooling trend returns with chances of showers in the
     mountains, foothills, and northern Sacramento Valley.
    -Isolated mountain thunderstorms possible with breezy onshore
     winds.
    -Snow levels generally above pass levels on Friday then
     lowering on Saturday into Sunday, with light high elevation
     snowfall currently expected, though exact details remain
     uncertain at this point.

.Changes from previous forecast...

* Nothing significant

&&
.AVIATION...

VFR conditions are expected over the next 24 hours, with surface
winds less than 12 kts. West-northwest wind gusts 15-20 kts are
expected over the Sierra between 21-03Z. Additionally, there is a
10-15% chance of isolated mountain thunderstorms between 23Z-06Z.
&&

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

$$