813
FXUS66 KSTO 071953
AFDSTO
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
1253 PM PDT TUE OCT 7 2025
SYNOPSIS
WARM AND DRY CONDITIONS TODAY WITH UNSETTLED WEATHER DEVELOPING
LATER THIS WEEK BRINGING COOLER TEMPS, WETTING RAINS, AND BREEZY
WINDS.
KEY MESSAGES
* TODAY - WEDNESDAY:
- DRY CONDITIONS AND SEASONAL TEMPERATURES PREVAIL THROUGH MID-
WEEK WITH VALLEY HIGH TEMPERATURES IN THE 80S TODAY AND
WEDNESDAY, WARMEST TODAY
- BREEZY ONSHORE FLOW RETURNS ON WEDNESDAY AFTERNOON INTO FRIDAY
WITH PERIODS OF GUSTS UP TO 15-25 KTS BUT NO SIGNIFICANT
IMPACTS EXPECTED.
* THURSDAY-SUNDAY
- CLUSTERS AND ENSEMBLES DEPICT AN UPPER LOW APPROACHING THE
REGION LATE NEXT WEEK WHICH WILL BRING LIGHT PRECIPITATION AND
COOLER TEMPERATURES, WITH PERIODS OF RAIN FORECASTED THURSDAY
NIGHT - EARLY SATURDAY MORNING
- MINIMAL PRECIPITATION IMPACTS, WITH BEST CHANCES OVER THE
NORTHERN SACRAMENTO VALLEY, FOOTHILLS, AND MOUNTAINS. NBM IS
CURRENTLY ADVERTISING A 40-70% CHANCE OF PRECIPITATION AMOUNTS
0.50" OR MORE OVER NORTHERN SACRAMENTO VALLEY AND MOUNTAIN
AREAS NORTH OF INTERSTATE 80 AND 5-15% CHANCE OF THUNDER NEAR
LASSEN NP AND ACROSS SHASTA COUNTY.
- NON-ZERO CHANCES FOR LIGHT, HIGH ELEVATION MOUNTAIN SNOW,
THOUGH LITTLE IF ANY IMPACTS ARE EXPECTED AND CONFIDENCE IS
LOW.
- TEMPERATURES WILL TREND COOLER LATE WEEK INTO NEXT WEEKEND,
WITH VALLEY HIGH TEMPERATURES IN THE 70S. PERIODS OF BREEZY
ONSHORE WINDS ARE ANTICIPATED AS WELL.
AVIATION
VFR CONDITIONS NEXT 24 HOURS. WEAKENING NORTHERLY TO EASTERLY
WINDS ACROSS THE NORTHERN SAC VALLEY AND MOUNTAINS BECOMING LIGHT
WINDS NEAR 01Z WED. ELSEWHERE, SURFACE WINDS GENERALLY REMAIN AT
OR BELOW 12 KTS.
STO WATCHES/WARNINGS/ADVISORIES
NONE.
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