- Excessive Heat Watch for Catalina Island County, California
- Excessive Heat Watch issued October 21 at 10:16AM PDT until October 24 at 8:00PM PDT by NWS
- Effective: Monday, October 23, 2017 at 10 a.m.
- Expires: Tuesday, October 24, 2017 at 8 p.m.
...Gusty winds to impact portion of the region today...
...Excessive Heat Watch in effect for Los Angeles and Ventura
County coast and valleys and the Santa Barbara County south coast
Monday and Tuesday...
.Gusty northerly winds will impact the Ventura and Los Angeles
County Mountains as well as the Santa Clarita, western San
Fernando and eastern Ventura County Valleys today. Wind gusts
between 40 and 50 mph can be expected.
A moderate Santa Ana wind event is expected to increase northeast
winds across eastern Ventura and western Los Angeles Counties
Sunday night through Tuesday afternoon. Strong high pressure in
combination with the winds will produce record setting hot
temperatures across southwest California. The hottest days are
expected to be Monday and Tuesday when highs near or in excess of
100 degrees are anticipated across coastal and valley regions of
Los Angeles and Ventura counties, including the Santa Monica
Mountains, as well as the south coast of Santa Barbara County.
Overnight temperatures will be quite warm, especially in the
foothills and Santa Monica Mountains where temperatures will only
drop to the mid to upper 70s and possibly lower 80s.
...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 PM PDT THIS
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH TUESDAY EVENING...
* WINDS...North to northeast 15 to 25 mph with gusts to 40 mph
through early this afternoon. The strongest winds will occur
through Newhall Pass, Porter Ranch, and in the Moorpark area.
* TEMPERATURES...100-106 degrees on Monday and Tuesday.
Overnight lows in the upper 60s and 70s. Isolated lower 80s
possible in the foothills and mountains.
* IMPACTS...Gusty winds will make driving difficult, especially
for high profile vehicles. This includes Highways 118, 23, and
Interstate 5. The very high temperatures create a dangerous
situation in which heat illnesses are possible. Temperatures
inside vehicles, even if the windows are partially open, can
quickly rise to life- threatening levels.