WEATHER »
  • Special Weather Statement for Ventura County Coast County, California
  • Special Weather Statement issued July 02 at 6:37AM PDT by NWS
  • Effective: Friday, July 6, 2018 at 11 a.m.
  • Expires: Monday, July 2, 2018 at 8 p.m.
  • |...Very dangerous heat and elevated fire danger expected for much
    of southwestern California late this week into this weekend...
    A strong upper level high pressure system is forecast to expand westward
    from the Central United States later this week, causing heat to
    build significantly across Southwestern California.
    A fairly deep marine layer and onshore flow will keep temperatures
    near or below normal across most of the region through Independence
    Day. On Thursday, the atmosphere will begin to warm, the marine
    layer will become more shallow, and onshore flow will decrease.
    This will lead to noticeable warming on Thursday, especially inland,
    where high temperatures should approach 100 degrees in the Antelope
    Valley, in lower elevations in the mountains, in the interior
    valleys of San Luis Obispo County and in the Cuyama Valley.
    Temperatures could even get close to 100 degrees Thursday in some
    of the warmest locations in the Los Angeles and Ventura County
    valleys.
    Gusty north winds are expected to develop across southern Santa Barbara
    County and possibly through the Interstate 5 corridor Thursday
    night. Winds could approach advisory levels in some of these areas
    Thursday night, and the combination of gusty winds, high
    temperatures and low relative humidity will increase fire danger
    substantially, possibly approaching critical levels.
    Gusty north winds are expected to continue across southern Santa
    Barbara County and through the Interstate 5 corridor Friday
    through Saturday evening, with the peak of the winds expected
    Friday night. Winds may also affect other areas as well. The air
    mass in place across the region will be extremely hot Friday
    through Saturday. It will remain very warm at night Thursday night
    and Friday night, with temperatures remaining in the 80s in
    foothill areas and where it remains breezy. Lows will likely
    remain in the 70s in most other areas south of Point Conception.
    During Friday and Saturday, high temperatures will likely be
    between 100 and 112 degrees in many valley locations, in the
    lower elevations in the mountains, and in the Antelope Valley.
    Many daily high temperature records are likely to be broken
    both days.
    The very high daytime temperatures and limited overnight cooling
    will create significant heat stress for people in the region. If
    computer models, which have been consistent, continue to show this
    event unfolding as is, Excessive Heat Watches will likely have to
    be issued for a good portion of the region, and Heat Advisories
    may be needed in most other areas.
    People should plan to reduce time in the sun during peak heating
    hours later this week into this weekend and drink additional
    water to keep hydrated.
    Stay tuned to the latest National Weather Service forecasts and
    statements on this developing weather situation.

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