Grizzly Flats, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

751
FXUS66 KSTO 132032
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
132 PM PDT Fri Jun 13 2025

.DISCUSSION...

.SYNOPSIS...
Dry weather continues into next week. Slight cooldown expected
through the weekend with periods on breezy onshore flow. Warming
trend by Tuesday, followed by areas of Moderate HeatRisk in the
Valley and foothills on Wednesday.

&&

.KEY MESSAGES...

* Today-Monday:

 -Gradual cooling trend expected through the remainder of the
  week. Primarily Minor HeatRisk as temperatures become more
  seasonable.

 -Probability of Valley High Temperatures > 90F:
  --Northern/Central Sacramento Valley: 30-50% Fri-Sat, 40-85%
   Sun-Mon
  --Delta, S. Sacramento Valley, N. San Joaquin Valley: 10-30%
   Fri-Sat, Sun-Mon 35-70%

 -Onshore flow expected to persist with periods of breezy winds,
  mainly in the afternoons and evenings and strongest across the
  Delta and vicinity. Breezy westerlies over the Sierra.

* Tuesday-Wednesday:

 - Above normal temperatures with areas of Moderate HeatRisk in
   the Valley and foothills by Wednesday. Potential for triple
   digit heat in the northern Sacramento Valley; low to upper 90s
   in other Valley locations.

 -Probability of Valley High Temperatures > 95F:
  --Northern/Central Sacramento Valley: 50-85% Tue, 60-95% Wed
  --Delta, S. Sacramento Valley, N. San Joaquin Valley: 10-30%
   Tue, 50-70% Wed

 -Warming and drying trend by mid-week may bring a brief period of
  elevated fire weather conditions, mainly across the northern
  Sacramento Valley.

.Changes from previous forecast...
 -No notable forecast changes since last update.

&&

.AVIATION...
VFR conditions with mostly clear skies are expected to continue
at TAF sites over the next 24 hours. Surface winds will generally
below 12 kts over the northern Sacramento Valley again today. In
the Delta area, we`ll see sustained winds over 12 kts and gusts
will get up to 25 kts between 21z today and 06z Saturday. In the
southern Sacramento Valley and northern San Joaquin Valley after
21z today, sustained winds will get up to 12 kts with gusts around
15 to 20 kts through 06z Saturday.

&&

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

$$