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PZZ410 1010 Am Pst Thu Nov 30 2023
.strong Thunderstorms over the waters...
the areas affected include... Coastal waters from cape mendocino to pt. Arena ca out 10 nm... Coastal waters from pt. St. George to cape mendocino ca out 10 nm... Humboldt bay... Humboldt bay bar... Waters from cape mendocino to pt. Arena ca from 10 to 60 nm... Waters from pt. St. George to cape mendocino ca from 10 to 60 nm...
at 1008 am pst, doppler radar indicated strong Thunderstorms, capable of producing winds to around 30 knots. These Thunderstorms were located along a line extending from 18 nm north of trinidad head to 11 nm northwest of cape mendocino to 62 nm southwest of eureka, moving south at 15 knots.
precautionary/preparedness actions...
mariners can expect gusty winds to around 30 knots...locally higher waves...and lightning strikes. Boaters should seek safe harbor immediately until these storms pass.
&&
lat...lon 4173 12415 4110 12416 4098 12412 4076 12423 4087 12415 4085 12409 4083 12408 4080 12418 4070 12421 4070 12427 4071 12427 4044 12441 3973 12493 4008 12512 4072 12471 4178 12434 4178 12426

PZZ400 235 Pm Pst Sun Dec 10 2023
Synopsis for northern california waters..Steep westerly swell and southerly wind waves will combine to yield seas around 9 to 11 ft in the northern outer waters today, but seas will continue to fall throughout the day and overnight. Light northerly breezes up to 15 kt will return tomorrow, followed by light southerly to southeasterly breezes up to 15 kt on Wednesday. A series of westerly swells will spread into the waters during the remainder of this coming week.

FXUS66 KSTO 102107 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 107 PM PST Sun Dec 10 2023

Synopsis
Despite cold morning temperatures and areas of frost, quiet and mild weather prevails across interior NorCal through the forecast period.

Areas of high clouds continue over NorCal on GOES-18 West imagery today, though that didn't stop temperatures in the Valley from reaching near to below freezing in many places this morning. High temperatures today will reach the mid to high 50s in the Valley, and 40s to mid 50s in the foothills and mountains.

A weak shortwave trough enveloped in the prevailing northwesterly flow will begin moving over the area tonight, though little to no impacts are expected from it. Despite the trough, temperatures will continue to warm Monday and Tuesday, with highs in the Valley reaching the mid 60s and in the foothills and mountains getting up to the high 50s to low 60s. Low temperatures, however, will stay colder in the low 30s to low 40s. The trough does bring a slight chance of precipitation, specifically in the northwestern portion of Shasta County, though probabilities are low, with a 15-20% chance of isolated showers. Wednesday sees the building of a trough offshore, though the ridge and its associated mild and calm weather are expected to remain in place through the week and into the weekend.

.EXTENDED DISCUSSION (Thursday THROUGH Sunday)...
On Thursday, the area will still be under the influence of upper level ridging with dry conditions. Upper level troughing will remain offshore in the Pacific and off the coast through the weekend. Overall weather pattern will remain the same through the weekend, until Sunday when ensembles suggest a weak shortwave to move through the region. The National Blend of Models (NBM)
projects low (20-30%) chances of showers over much of the area, however other ensembles such as the GFS and ECMWF keep the area dry, so there is disagreement on progression of any system moving through and producing rainfall.

Temperatures during the extended look to remain in the upper 50s to low 60s for Valley locations and upper 40s to 50s for higher elevations.

AVIATION
VFR conditions across interior NorCal prevail for the next 24 hours, with isolated MVFR/IFR/LIFR conditions expected to develop for Valley locations, mainly from Sacramento south, for BR and FG, Monday from 04z to 18z. Surface winds are expected to be below 12 knots across all TAF sites.

STO WATCHES/WARNINGS/ADVISORIES
None.

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Arcata Wharf
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Sun -- 03:56 AM PST     2.91 feet Low Tide
Sun -- 05:10 AM PST     Moonrise
Sun -- 07:29 AM PST     Sunrise
Sun -- 10:03 AM PST     7.36 feet High Tide
Sun -- 03:01 PM PST     Moonset
Sun -- 04:48 PM PST     Sunset
Sun -- 05:18 PM PST     -0.28 feet Low Tide
Sun -- 11:55 PM PST     5.24 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Arcata Wharf, Humboldt Bay, California, Tide feet

Eureka Slough Bridge
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Sun -- 03:14 AM PST     2.87 feet Low Tide
Sun -- 05:10 AM PST     Moonrise
Sun -- 07:29 AM PST     Sunrise
Sun -- 09:47 AM PST     7.91 feet High Tide
Sun -- 03:01 PM PST     Moonset
Sun -- 04:36 PM PST     -0.38 feet Low Tide
Sun -- 04:48 PM PST     Sunset
Sun -- 11:39 PM PST     5.60 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Eureka Slough Bridge, Humboldt Bay, California, Tide feet

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