Area Forecast Discussion
Issued by NWS Eureka, CA

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
FXUS66 KEKA 261713

National Weather Service Eureka CA
1013 AM PDT MON SEP 26 2016

.SYNOPSIS...Strong high pressure aloft over the region will
promote warmer than normal temperatures across the coast and
interior again today. A gradual cooling trend is expected by
mid week as the high pressure weakens...while a slight chance
of rain is possible late in the week.


.UPDATE...Temperatures are warming quickly again today. In fact,
ACV is 10 degrees warmer than at the same time yesterday. We are
still anticipating a wind shift this afternoon which should keep
temperatures several degrees cooler than yesterday, but the
current temperature trends required a bump in coastal high
temperatures for today. Otherwise the forecast remains on track
and the previous discussion is below. /RPA


.PREV DISCUSSION... /issued 320 AM PDT MON SEP 26 2016/

DISCUSSION...One more day of strong high pressure aloft and
associated offshore flow is expected with plenty of sunshine and
warm temperatures again this afternoon. For the wont
be quite as warm as yesterday as the east winds are not quite as
strong...however it will still be another very nice day. Tuesday
through Thursday an upper level trough slowly approaches the area
as the ridges gets pushed out. This will bring a slow but steady
cooling trending to the inland areas and the coast will likely see
increasing stratus, although afternoon clearing is likely. Some
drizzle is possible overnight, but have held off adding it to the
forecast at this point due to low confidence in the timing. Friday
into the weekend the trough finally moves through. Forecast models
are struggling on exactly how far south to bring any rain. Most
recent GFS keeps the rain mostly up in Oregon until Monday, while
the ECMWF brings it down to Cape Mendocino for Friday night into
the weekend. For now trended the forecast a bit drier, mainly due
to the GFS putting off bringing any significant rain until Monday

AVIATION...VFR conditions are expected to prevail today.
Some fog and low clouds are expected to return tonight.

MARINE...North winds will increase offshore tonight and
remain elevated through Wed. SMALL CRAFT ADVISORIES for both winds
and combined seas are in effect.


.EKA Watches/Warnings/Advisories...
     Small Craft Advisory from 11 PM this evening to 8 PM PDT
     Wednesday for PZZ470.



Visit us at

Follow us on Facebook and Twitter at:

For forecast zone information
see the forecast zone map online: is the U.S. government's official web portal to all federal, state and local government web resources and services.