Sunrise 6:04 AM   Sunset 8:22 PM Moonrise 5:12 AM   Moonset 8:40 PM

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PZZ410 1057 Pm Pdt Wed Mar 27 2024
a marine weather statement has been issued for the following areas - . 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 1056 pm pdt, doppler radar indicated strong Thunderstorms, capable of producing winds to around 30 knots and small hail. These Thunderstorms were located along a line extending from 12 nm northwest of cape mendocino to 37 nm southwest of eureka, moving northeast at 25 knots.
precautionary/preparedness actions - .
water spouts are possible along with stronger Thunderstorms - .locally higher waves - .and lightning strikes. Boaters should seek safe harbor immediately until these storms pass.
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.
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lat - .lon 4082 12409 4080 12413 4081 12416 4080 12418 4075 12419 4072 12422 4070 12421 4069 12423 4071 12427 4061 12433 4044 12441 4039 12437 4023 12480 4061 12466 4087 12416 4076 12423 4086 12415 4085 12412 4086 12410

PZZ400 258 Pm Pdt Wed May 8 2024
Synopsis for northern california waters - Northerlies will remain elevated at gale force in the northern and southern waters through Thursday morning. Northerly seas have increased to around 12 to 15 ft at 11 seconds and will remain elevated through tonight. Winds then quickly weaken Thursday.

FXUS66 KEKA 082202 AFDEKA

AREA FORECAST DISCUSSION National Weather Service Eureka CA 302 PM PDT Wed May 8 2024

SYNOPSIS
A building expansive Pacific ridge of high pressure will continue to bring warming temperatures and strengthening N to NE winds. This combination of elements will allow for unseasonably warm and possibly record high temperatures closer to the coast and in the interior valleys. A cooling trend is expected for the weekend.

DISCUSSION
High pressure is building into the Pacific Northwest and an upper level low is slowly retrograding to the southwest over the Central Rockies. This is creating a tight pressure gradient across the area bringing gusty north winds to the coastal areas and over the higher terrain. These are expected to increase tonight over the higher terrain, especially in SE Trinity, NE Mendocino and Lake counties. There is a 50 to 80 percent chance of greater than 40 mph wind gusts in these areas.
The wind advisories remain on track. The valleys and coastal areas will likely decouple in most areas and winds will become light overnight. Frost is not expected in most areas, although the coldest spots could approach the mid 30s. Went below the NBM guidance by several degrees for the protected valleys and coastal areas tonight, but temperatures still remain above 36 degrees.
This offshore flow is expected to keep all the stratus away from the coast and very few river valleys are likely to see any fog or stratus. Thursday the low pressure over the Rockies continues to drop south and this will gradually the pressure gradient to relax and winds start to diminish through the day. Temperatures will continue to warm each day through Friday as high pressure builds.
Inland temperatures will peak near 90 in the warmer valleys. As the winds diminish they become northeast and offshore and this should help warm temperatures along the coast. Temperatures may peak around 70. A few locations could reach the mid or upper 70s briefly early in the afternoon Thursday or Friday.

Saturday the ridge axis starts to move to the east and the high pressure. This looks like it will allow stratus to move up the coast and this will likely keep temperatures cooler. Saturday will likely be a transition day and there may not be too much stratus, just cooler temperatures in the coastal and near coastal areas.

Sunday and Monday a weak shortwave moving by to the north may be enough to spark off a shower or two over eastern Trinity county.
There is a ten percent chance of thunder at this point. This shortwave could also bring drizzle to the coast. Tuesday high pressure starts to build back in and temperatures will warm back into the 90s inland and low 60s at the coast. MKK

AVIATION
Overnight/early morning fog developed over the coastal-interior river valleys, but dissipated within a few hours after sunrise. Otherwise, benign VFR prevailed across the region.
The more concerning aviation hazard has been strong gusty NW-N winds today along the coast, due to interaction between offshore high pressure and thermal/inverted trofing extending offshore. An absent marine layer was also the result of strong offshore flow: above ground winds at night promoted low level windshear (LLWS).
Conditions are expected to stay fairly unchanged through the 24 hour Taf period. /TA

MARINE
Northerly gales continue across the waters and steep waves have built to around 10 to 12 feet with a small swell making them slightly larger. Winds will start to diminish tonight and continue to diminish on Thursday. Winds will diminish more quickly in the southern waters tonight and the gale warning may need to be ended sooner than it currently is.

Friday and Saturday the winds continue to to diminish and will only be around 5 to 10 kt. Saturday night into Sunday winds increase again and may reach gale force by Monday or Tuesday. A small NW swell of 3 to 4 feet at 11 seconds is possible over the weekend. There may also be a southerly long period, but this will only be around 2 to 3 feet as well. MKK

EKA WATCHES/WARNINGS/ADVISORIES
CA...
Wind Advisory from 8 PM this evening to 9 AM PDT Thursday for CAZ108-111.

Wind Advisory until 9 AM PDT Thursday for CAZ114-115.

NORTHWEST CALIFORNIA COASTAL WATERS...
Gale Warning until 3 AM PDT Thursday for PZZ450-455-470-475.

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Eureka Slough Bridge
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Wed -- 12:31 AM PDT     8.96 feet High Tide
Wed -- 06:05 AM PDT     Sunrise
Wed -- 06:11 AM PDT     Moonrise
Wed -- 07:09 AM PDT     -1.51 feet Low Tide
Wed -- 02:08 PM PDT     6.44 feet High Tide
Wed -- 06:45 PM PDT     2.60 feet Low Tide
Wed -- 08:21 PM PDT     Sunset
Wed -- 09:39 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION

Eureka Slough Bridge, Humboldt Bay, California, Tide feet

Humboldt Bay Entrance
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Wed -- 06:06 AM PDT     Sunrise
Wed -- 06:12 AM PDT     Moonrise
Wed -- 07:04 AM PDT     -1.48 feet Low Tide
Wed -- 01:27 PM PDT     5.20 feet High Tide
Wed -- 06:40 PM PDT     2.55 feet Low Tide
Wed -- 08:21 PM PDT     Sunset
Wed -- 09:40 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION

Humboldt Bay Entrance, California, Tide feet

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