Sunrise 5:57 AM   Sunset 8:21 PM Moonrise 11:57 AM   Moonset 1:27 AM

  Print   HELP   Reset   Save   Recall  New

PZZ540 Coastal Waters From Point Arena To Point Reyes California Out To 10 Nm- 840 Pm Pdt Tue May 14 2024
Tonight - W wind around 5 kt, backing to se after midnight. Seas 5 to 7 ft. Wave detail: nw 6 ft at 12 seconds and sw 2 ft at 15 seconds. Patchy dense fog late this evening. Wed - S wind 5 to 10 kt. Seas 6 to 8 ft. Wave detail: nw 7 ft at 11 seconds and sw 2 ft at 15 seconds. Wed night - SW wind around 5 kt. Seas 4 to 6 ft. Wave detail: nw 5 ft at 13 seconds and sw 2 ft at 14 seconds. Patchy dense fog in the evening. Thu - S wind 5 to 10 kt. Seas 4 to 6 ft. Wave detail: nw 5 ft at 13 seconds and sw 2 ft at 14 seconds. Thu night - NW wind 5 to 10 kt. Seas 5 to 7 ft. Wave detail: nw 6 ft at 13 seconds and sw 2 ft at 18 seconds. Fri - N wind 5 to 10 kt, backing to W in the afternoon. Seas 5 to 8 ft. Wave detail: nw 7 ft at 12 seconds and sw 2 ft at 19 seconds. Fri night - NW wind 10 to 15 kt. Seas 5 to 8 ft, building to 7 to 9 ft after midnight. Sat - E wind 5 to 10 kt, veering to sw in the afternoon. Seas 7 to 9 ft. Sat night - NW wind around 10 kt. Seas 6 to 9 ft. Sun - NW wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Seas 6 to 9 ft. Sun night - NW wind 15 to 20 kt. Seas 7 to 10 ft.

PZZ500 840 Pm Pdt Tue May 14 2024
Synopsis for the central california coast and bays including the Monterey bay - Greater farallones - .and cordell bank national marine sanctuaries - .
rough seas continue to diminish through Wednesday as the pressure gradient slackens and winds decrease. A moderate nw swell will continue to keep significant wave heights elevated, bordering on hazardous for small craft, in the far nw coastal zone. Otherwise, favorable conditions will continue into the weekend, with stronger nw winds expected next week.

FXUS66 KEKA 142205 AFDEKA

AREA FORECAST DISCUSSION National Weather Service Eureka CA 305 PM PDT Tue May 14 2024

SYNOPSIS
Summer-like weather pattern will persist through the week with hot and dry afternoons in the interior and low clouds and fog along the coast.

DISCUSSION
Thin line of stratus and fog along or just offshore the northern Humboldt coast has been slowly decaying this afternoon.
Fog and low clouds should continue to steadily erode into the late afternoon with mostly clear skies into the evening north of Cape Mendocino. It is not certain that stratus and fog will reform later tonight as a broad flat ridge aloft builds from the west tonight. E-NE winds above mean sea level should keep the stratus and fog much more limited tonight. NE-E winds are forecast to be strongest over Del Norte county where no stratus or fog is forecast for tonight. Around Humboldt Bay and Eel delta, humidities remain higher and HRRR indicates low probabilities around 20% for 1/2SM in fog. Granted the HRRR probabilities were not very high for KCEC and KACV with both ASOS sites reporting vsby's to 1/4SM earlier today. South of Cape Mendocino along the SW Humboldt and Mendocino coastlines, confidence is much higher that stratus and fog will persist. HRRR indicates probabilities > 70% for 1/4SM or less in fog. Fog may be dense in spots.

Otherwise, skies are forecast to remain clear for interior NW California tonight through Wed. High temperatures are forecast to peak on Wed, about 15F above mid May normals. This minor warm up (highs in the upper 80's to mid 90's) may create a moderate heat risk for sensitive groups, however. Interior temperatures are forecast to trend down for the remainder of the week, but remain above normal. A transient shortwave trough is forecast to move into the Pac NW Thu into Fri and may induce a push of marine air with greater coverage of low clouds into the interior valleys.
The ECMWF is much more stout with the ridge holding firm while the GFS looks faster and slightly deeper with the trough. Some coastal drizzle is not completely impossible, but for now will not add any to the forecast with low probabilities for measurement.

Additional troughs will knock down the ridge over the weekend for a continued downward trend of high temperatures. The rate of decrease and the magnitude of "cooling" are not completely certain. NBM probabilities for 80F or more for our warmest interior valleys are still around 50-60% and no more than 10% for 90F or more. A deeper trough scenario would yield near or slightly below normal temperatures for the interior valleys; lower to mid 70's. This is a low probability outcome with only 16% of ensemble members in this camp this weekebd. There are indications for breezier or windier conditions with these troughs over the weekend into early next week. Stronger NW-W breezes may help to knock down interior temperatures below normal early to mid next week. DB

AVIATION
A slightly more compressed coastal marine layer remained in place through much of the afternoon south of CEC.
However, conditions scoured out at CEC around 18z as coastal winds increased. Pilot reports this morning indicated that cloud top were between 1500 to 1700 feet. A persistent thin layer of stratus/fog continued at EKA and ACV with conditions LIFR/IFR into middle afternoon; partial clearing is expected by late afternoon.
At UKI, VFR prevailed although a surge of stratus moved to within 5 miles of the airport. Prognosis is that stratus will not infiltrate Uki's terminal on Wednesday. For Wednesday, offshore flow will increase over Del Norte most likely preventing stratus and fog redevelopment at CEC. Above ground (offshore)winds will become strong enough to warrant adding LLWS to CEC's TAF around midnight. Some model data are differing on the coverage or amount (if any) of stratus/fog reforming from Humboldt Bay to ACV. But, history or persistence tends to support some amount of marine clouds Monday morning. /TA

MARINE
Northerly gales are expected to persist over the northern outer waters through much of week. Wind magnitudes appear to be modulated by interior heat and a resultant thermal trough along the CA-OR coasts. Therefore, strongest winds will most likely occur during the afternoon and evening hours. Large and very steep short period seas will lag behind the strongest winds and probably persist into the late night and morning hours.
Thus, the long duration gale warning for the northern outer waters through Thursday evening appears to be on track. The gale may need to be extended into Friday and/or expanded southward into zone 475 by Saturday.

Closer to shore, winds are forecast to remain much more subdued with the usual wind-prone points like Pt St George gusting to 35-40kt during the late afternoon and evening hours. Winds have been shifting to southerly across the southern inner waters as multiple small scale eddies spin up in the lee of the Cape Mendo.

Also, small NW and S swells are forecast to move through the waters through the week. Seas will remain primarily locally generated and dominated by short-period northerlies from the wind speed maximums in the northern outers. Short period seas look to hit their maximum late tonight...with hazardous seas propagating into the inner waters north of Cape Mendocino late tonight. Granted the largest and steepest waves look to occur across the outer fringes of the inner waters.

The northerly wind pattern with steep short period waves will most likely persist into the latter portion of the week. There are subtle indications for stronger N-NW winds to shift into the inner waters over the weekend as an trough drops down from the northwest and pressure gradients tighten up across the area. DB



EKA WATCHES/WARNINGS/ADVISORIES
CA...
None.
NORTHWEST CALIFORNIA COASTAL WATERS...
Small Craft Advisory until 3 PM PDT this afternoon for PZZ450-455.

Hazardous Seas Warning until 9 AM PDT Thursday for PZZ450.

Gale Warning until 11 PM PDT Thursday for PZZ470.

Hazardous Seas Warning until 11 PM PDT Thursday for PZZ475.

toggle option: (graph/table)

Albion
Click for Map
Wed -- 12:07 AM PDT     2.88 feet Low Tide
Wed -- 02:29 AM PDT     Moonset
Wed -- 04:49 AM PDT     First Quarter
Wed -- 04:54 AM PDT     4.24 feet High Tide
Wed -- 06:01 AM PDT     Sunrise
Wed -- 12:07 PM PDT     0.30 feet Low Tide
Wed -- 12:58 PM PDT     Moonrise
Wed -- 07:31 PM PDT     4.63 feet High Tide
Wed -- 08:22 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION

Albion, California, Tide feet

Point Arena
Click for Map
Wed -- 12:05 AM PDT     2.88 feet Low Tide
Wed -- 02:29 AM PDT     Moonset
Wed -- 04:43 AM PDT     4.24 feet High Tide
Wed -- 04:49 AM PDT     First Quarter
Wed -- 06:01 AM PDT     Sunrise
Wed -- 12:05 PM PDT     0.30 feet Low Tide
Wed -- 12:59 PM PDT     Moonrise
Wed -- 07:20 PM PDT     4.63 feet High Tide
Wed -- 08:21 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION

Point Arena, California, Tide feet

Full Color Weather Map

Link to Loop


Other links: GEOS-West     Contential US     Full GOES-East

Beal AFB, CA,