Shasta Lake, California 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

636
FXUS66 KSTO 012016
AFDSTO

Area Forecast Discussion
National Weather Service Sacramento CA
116 PM PDT Thu May 1 2025

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

.Discussion...

.Synopsis...
Minor weather impacts over the next 7 days. Gusty north winds on
Sunday and Monday in the northern Sacramento Valley.

Warm temperatures today, then cooling begins on Friday with the
coolest day on Saturday. Light rain showers are expected Saturday
with most areas receiving less than a tenth of an inch. As the
system exits the area on Sunday and Monday...expect gusty winds
up to 40 mph in the northern Sacramento Valley and gusts 25 mph
most other locations. Dry and mild conditions are then expected
into early next week.

&&

.Key Messages...

* Today:
 -Warm high temperatures, warmest in the northern and central
     Sacramento Valley
-Probability of central and north Sac Valley temps 90 degrees or
     higher: 50-90%
-Probability of southern Sac Valley temps 90 degrees or higher:
     5-25%

* Friday and Saturday:
    -Cooling trend starts with chances of showers in the
     mountains, foothills, and northern Sacramento Valley.
    -Light precipitation chances on both days with most areas
     seeing less than a tenth of an inch over 48 hours.

* Sunday and Monday:
-Mostly dry and gusty north winds
-Warmer temperatures than Saturday.


* Early Next Week:
- Slightly warmer than normal temperatures and dry.

.Changes from previous forecast...

* Winds have trended up slightly for Sunday and Monday

&&

.AVIATION...
VFR conditions expected over the next 24 hours across interior
NorCal. Surface winds less than 12 knots at TAF sites through
Friday morning. Breezy southerly wind gusts up to 15-20 kts across
the Sacramento Valley, west to northwest gusts up to 20 kts over
the northern San Joaquin Valley, and southwest gusts up to 20-25
kts over the Sierra 18z Friday - 06z Saturday. Over the Sierra,
north to east winds will gust 15 to 25 kts from 05Z through 18Z
Thursday. Southwesterly wind gusts up to 25 kts vicinity Delta.
There is a 10-30% chance of isolated thunderstorms over the Sierra
mainly from HWY 50 southward until 03z Friday, and over the
mountains from 18z Friday - 03z Saturday, with brief periods of
MVFR conditions. Gusty and erratic winds near thunderstorms.

&&

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

&&

$$