Marine Weather and Tide Forecast for Concord, CA

KEY MESSAGES

* Today-Wednesday:

- Temperatures begin a cooling trend today and Wednesday to near normal temperatures, with below normal temperatures expected Wednesday in areas adjacent to the Delta.
- Smoke will continue to impact areas in the vicinity of the Green Fire, though more southerly winds this evening and on Wednesday should keep most smoke out of the Valley during the day.
- Locally breezy northerly flow in the northern/central Sacramento Valley and adjacent terrain which may allow smoke from the Green Fire into the Valley, mainly in the overnight through morning timeframe.
- Onshore flow and Delta Breeze influence expected through the weekend, bringing minor cooling and overnight relief to the Delta and adjacent Valley.
- Breezy to gusty southerly winds expected this evening, especially in the vicinity of the Delta.
- Probability of gusts 30 mph or greater this evening: - 20 to 50% in the central and northern Sacramento Valley - 60 to 95% in the Delta and vicinity - Humidities improve slightly throughout this week, especially closer to the Delta. Daytime humidities and overnight humidities decrease again Friday and into the weekend.

* Thursday-Monday:

- Upper level pattern remains largely persistent with broad troughing/northwesterly flow across interior NorCal.
- Near seasonable temperatures continue late in the week, increasing slightly over the weekend, before cooling again early next week.
- Periodically breezy onshore flow expected to persist in the afternoon and evening late this week, shifting toward terrain driven influence during the overnight hours.
- Persistent and periodic late day wind gusts 20 to 30 mph anticipated throughout the Delta and vicinity each day.

Changes from previous forecast
- Minimal changes from the previous forecast.

AVIATION
Wildfire smoke may result in periodic MVFR and IFR conditions in the northern Sacramento Valley today. VFR conditions expected elsewhere across interior Northern California over the next 24 hours. West-southwest winds will be breezy through the Delta with gusts 20 to 30 kts through 18Z Wednesday. Elsewhere, sustained speeds generally around 12 knots with periodic gusts 15 to 20 kts in the Valley until around 06Z Wednesday.

STO WATCHES/WARNINGS/ADVISORIES
None.