Marine Weather and Tide Forecast for Placerville, CA

DISCUSSION

Hot, well-above normal temperatures continue today with widespread Moderate HeatRisk and areas of Major HeatRisk in the northern/central Sacramento Valley and adjacent foothills. Hottest temperatures of the week are expected on Monday, with highs approaching 110 in the northern Sacramento Valley. Expect elevated overnight lows in the upper 60s to mid 70s as well which will limit overnight relief. As a result, an Extreme Heat Warning is in effect through 11 PM Tuesday. Diurnal delta breeze influence will work to keep the vicinity Delta and Sacramento area cooler compared to the rest of the Valley through this heat event, but highs will still be in the mid to upper 90s. Remember to stay cool and hydrated, and consider checking in on those more sensitive to heat.

These hot temperatures combined with low relative humidity and breezy onshore winds, will lead to elevated fire weather conditions in the northern Sacramento Valley and adjacent terrain through Tuesday. Daytime RHs will be in the teens to mid 20s, with overnight recoveries in the 50s. A few areas may see single digit RHs as well.

Temperatures begin a gradual cooling trend Wednesday onward as ridging overhead breaks down. More significant cooling expected Thursday into the weekend, with increased onshore flow through the Delta and Valley and below-normal high temperatures.

Dry weather is expected over the next 7 days, however there remains a 10-20% chance for isolated showers/thunderstorms over the Sierra crest today south of US 50 and Thursday.

AVIATION

VFR conditions with clear skies over the next 24 hours. Winds generally less than 12 kts everywhere, except in the immediate vicinity of the Delta, where westerly gusts up to 25 kts are possible through the forecast period.

STO WATCHES/WARNINGS/ADVISORIES
None.