San Franciscans feeling the heat wave's grip can expect a slight reprieve heading into the weekend as forecasters announce a cooldown in the Bay Area. According to the National Weather Service (NWS) in San Francisco, CA, daytime temperatures are predicted to dip following the expiration of Heat Advisories, which will be in effect until 11 PM tonight for several inland areas. While today's highs may still push into the 90s in some inland regions, the mercury will start its descent as we head towards Friday.
The NWS' Area Forecast Discussion notes that the South and East Bay interior regions are still hovering in the 60s overnight, with coastal areas experiencing a comparatively cooler range in the 50s. Yet, despite the compressing marine layer, which could lead to some early morning fog, especially along Monterey Bay, the overarching narrative is one of temperatures steadily falling. Although Heat Advisories remain for interior Monterey and San Benito counties, with a moderate heat risk, relief is on the horizon as an upper-level trough begins its inland journey, signaling even cooler weather starting Friday.
The extended outlook brings further good news, as a consensus of forecasts points to temperatures dropping by as much as 10 degrees by the end of the week. Cooler conditions are expected to persist into next week, with an upper-level low-pressure system contributing to below-average temperatures, particularly along the coast. Inland areas, however, may experience a slight upward tick in temperatures early next week, especially in typically hotter North and East Bay locales.
Maritime operations will also feel the effects of this weather change as breezy northwesterly winds persist along the coast. However, significant wave heights are expected to lessen over the coming days, this is according to the National Weather Service's marine forecast. Boaters should heed a Small Craft Advisory in effect until Friday afternoon for regions from Pt Arena to Pt Reyes beyond ten nautical miles from shore, with borderline strong gusts possible this weekend's marine forecast echoes the sentiment of a moderating climate, a sign perhaps, that the Bay's natural air conditioning system is kicking back into gear.
