Area Forecast Discussion
Issued by NWS Eureka, CA
FXUS66 KEKA 232245
AREA FORECAST DISCUSSION
National Weather Service Eureka CA
345 PM PDT SAT JUL 23 2016
.SYNOPSIS...Strong high pressure will bring a significant warming
trend into the coming week with temperatures approaching the
triple digits across the interior. Coastal areas will continue to
see a mix of clouds and sun as the marine layer fluctuates in
.DISCUSSION...A patch of low clouds held firm along the immediate
Redwood Coast into early afternoon. This was aided by a flow
reversal just offshore. Wind have since become more uniformly N
along the coast, and the remaining clouds have all but dissipated.
Temperature across the interior have soared into the 90s in many
locations with a few high valleys over the century mark.
Temperatures along the Pacific Coast are running in the mid 60s.
High pressure aloft will gradually build over the desert SW over
the next few days, with high temperatures at many interior
locations exceeding 100 degrees. A few high valley spots may see
readings reach 110 by mid to late in the coming week with 500 MB
heights building to near 597 dam as close as the NV/UT border.
Rain chances appear scant over the next week. Have left in some
silent PoPs over portions of the interior for Friday and Saturday
afternoons. However, models appear to be keeping most of the
monsoonal moisture bottled up well south of the area, and GFS
instability parameters look meager. /SEC
.AVIATION...The afternoon northwest gusty winds along the coast will
subside near sunset with the winds becoming light westerly and then
becoming southerly near midnight. The coastal stratus and fog will
move over the coastal airfields soon after midnight. IFR to LIFR
conditions expected by 1100Z. The airfields are expected return to
VFR conditions around noon Sunday. Interior airfields will continue
to be VFR overnight as the lower levels of the atmosphere remain
warm and dry.
.MARINE...A tight pressure gradient resulting from the interaction
between the eastern pacific high pressure system and the thermal
trough over interior California is generating gale force winds
over the outer waters and strong breeze to near gale winds in the
inner waters. These northwest winds are forecast to generate steep
waves across the outer and inner waters. Thus a gale warning is
in effect through Tuesday for the outer waters. For the inner
waters a small craft advisory is in effect for winds and
hazardous seas tonight and Sunday and then for hazardous seas
through the middle of next week. The sea state across the outer
waters will range from 12 to 14 feet and 8 to 10 feet across the
NORTHWEST CALIFORNIA COASTAL WATERS...
Small Craft Advisory until 2 PM Wednesday for PZZ450.
Gale Warning until 3 AM Wednesday for PZZ470-475.
Small Craft Advisory until 2 PM Wednesday for PZZ455.
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