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Central Coast Heats Up Midweek as Offshore Winds Ease and Marine Layer Nears Return

Onshore flow rebuilds the marine layer to cool coastal areas by Thursday.

Overview

  • Strong offshore winds that peaked with an 86 mph gust at Mt. Umunhum have eased Tuesday, yet very dry air keeps fire danger elevated.
  • Forecasters expect Wednesday to be the warmest day, with inland San Luis Obispo and Santa Barbara counties in the 80s and beaches in the 70s.
  • An onshore turn begins Tuesday afternoon and strengthens through Thursday to start a coastal cooldown.
  • Night and morning low clouds return most likely Wednesday night into Thursday, with May Gray widespread by Friday morning.
  • Daytime humidity will sit in the teens to 20s through the week, leaving cured grasses quick to ignite even as winds fade.