WEATHER »
  • Excessive Heat Watch for Catalina Island County, California
  • Excessive Heat Watch issued August 25 at 9:19PM PDT until August 29 at 10:00PM PDT by NWS
  • Effective: Sunday, August 27, 2017 at 10 a.m.
  • Expires: Tuesday, August 29, 2017 at 10 p.m.
  • ...Excessive Heat Watch in effect for Inland areas of Southwest
    California as well as the Los Angeles Basin beginning Sunday
    morning through Tuesday evening...
    ...Excessive Heat Watch in effect for the Coastal Areas from San
    Luis Obispo to Ventura Counties Monday morning through Tuesday
    evening...
    .The combination of strong high pressure building aloft and weak
    surface wind gradients will bring high temperatures that are 10
    to 18 degrees above normal in many parts of the forecast area
    beginning late this weekend and continue through at least mid
    week. There is a chance that these very hot conditions could
    linger through much of next week and Labor Day weekend. The
    warmest temperatures are expected to be across the Antelope
    Valley, lower mountain elevations, coastal and inland valleys as
    well as the Los Angeles Basin away from the coast.
    The other coastal areas will be under an Excessive Heat Watch
    beginning Monday morning and continue through Tuesday evening.
    ...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
    THROUGH TUESDAY EVENING...
    * TEMPERATURE...103 to 110 degrees. Low temperatures are expected
    to range from the mid 70s to near 80 degrees.
    * IMPACTS...The very high temperatures create a dangerous
    situation in which heat related illnesses are possible.
    Temperatures inside vehicles, even if the windows are
    partially open, can quickly rise to life-threatening levels.

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