Sunrise 6:11 AM   Sunset 8:01 PM Moonrise 1:42 AM   Moonset 11:44 AM

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PZZ545 Coastal Waters From Point Reyes To Pigeon Point California Out To 10 Nm- 248 Am Pdt Wed May 1 2024
.small craft advisory in effect through late Thursday night - .
Today - NW winds 20 to 30 knots. Wind waves 7 to 9 ft. W swell 2 to 4 ft at 12 seconds and sw around 2 ft at 18 seconds. Tonight - NW winds 20 to 30 knots with gusts up to 40 knots. Wind waves 8 to 10 ft. NW swell 2 to 4 ft at 11 seconds. Thu - NW winds 15 to 25 knots with gusts up to 35 knots. Wind waves 6 to 8 ft. NW swell 2 to 3 ft at 10 seconds. Thu night - NW winds 15 to 25 knots with gusts up to 35 knots. Wind waves 7 to 9 ft. NW swell 2 to 4 ft at 9 seconds. Fri - NW winds 10 to 20 knots with gusts up to 30 knots. Wind waves 5 to 7 ft. NW swell 2 to 3 ft at 9 seconds. Fri night - W winds 15 to 20 knots with gusts up to 25 knots. Wind waves 4 to 5 ft. NW swell around 2 ft at 8 seconds. Sat - W winds 10 to 15 knots. Wind waves 4 to 5 ft. W swell around 2 ft and sw around 2 ft. A chance of rain. Sun - NW winds 10 to 15 knots. Wind waves 5 to 7 ft. W swell 2 to 3 ft and sw around 2 ft.
- .san francisco bar/fourfathom bank forecast - - .
in the deep water channel - .mixed seas of 4 to 6 ft at 10 seconds.
across the bar - .mixed seas of 5 to 7 ft at 10 seconds. Maximum ebb current of 2.2 kt at 10:10 am Wednesday and 1.4 kt at 12:28 am Thursday.

PZZ500 248 Am Pdt Wed May 1 2024
Synopsis for the central california coast and bays including the Monterey bay - Greater farallones - .and cordell bank national marine sanctuaries - .
breezy and gusty winds continue through Friday, with gale force gusts of 40 to 45 knots possible in the outer waters through much of the week. Strong winds will result in hazardous seas and steep wind waves with significant wave heights reaching 10 to 14 feet in the outer waters. Conditions gradually improve over the weekend and into next week as winds begin to ease. Rain chances begin early Saturday as a trough descends over the region.

FXUS66 KMTR 010833 AFDMTR

Area Forecast Discussion National Weather Service San Francisco CA 133 AM PDT Wed May 1 2024

New SYNOPSIS, SHORT TERM, LONG TERM

SYNOPSIS
Issued at 125 AM PDT Wed May 1 2024

High pressure brings quiet weather and slowly warming temperatures this week. Breezy onshore winds will keep temperatures along the coast cooler however. Wet, unsettled conditions returning Friday night and Saturday, much cooler inland Saturday. Unseasonably cool daytime highs continuing into early next week then gradually warming by the middle of the week.

SHORT TERM
(Today and tonight)
Issued at 133 AM PDT Wed May 1 2024

Today's weather will be similar to Tuesday's weather, dry conditions prevailing with high pressure over the offshore waters to far northern California. Gusty northwest winds continuing over the coastal waters.
Forecast highs today 60s near the coast and bays to the 70s-80 inland.

LONG TERM
(Thursday through Tuesday)
Issued at 133 AM PDT Wed May 1 2024

Dry Thursday and Friday, increasing clouds Friday night with rain developing over the North Bay, rain spreading southeastward across much of the rest of the forecast area Saturday. It'll turn noticeably cooler especially inland Saturday with daytime highs Saturday 10F to 18F cooler inland compared to Friday's forecast highs.

In the last 12-24 hours global and mesoscale models are more in line focusing on the arrival of a cold core low pressure system from the Bering Sea/Aleutian Islands arriving in northern California Friday night and Saturday. The southeastward trajectory takes it across cooler than normal sea surface temperatures (negative phase PDO)
at least somewhat minimizing maritime thermal modification along the way and for maintenance/development it'll travel through a long wave trough on the West Coast. The low will brush by and tap higher levels of water vapor extending far north of Hawaii, however the low is forecast to move through our forecast area retaining a strong mid-latitude influence. Recent precipitable water values on the GFS have been 1.00" to 1.10" for Saturday, not far from the max moving average on Oakland upper air sounding climatology in early May.
Model forecast rainfall amounts vary from 0.25" to 0.70" North Bay, 0.15"-0.25" low elevations to 0.40" hills/mountains elsewhere across the Bay Area to around 0.10" interior north Central Coast to 0.33" Big Sur Coast. Wet and cooler weather Saturday, gusty northwest winds over the coast temporarily subsiding with the passage of a surface cold front/trough. Dry weather returns Sunday. The surface pressure pattern looks favorable for gusty northwest winds redeveloping over the coastal waters beginning next Tuesday. Daytime highs gradually warming by the middle of next week.

AVIATION
(06Z TAFS)
Issued at 1022 PM PDT Tue Apr 30 2024

Generally VFR through the TAF period with patchy stratus in the higher elevations. Westerly flow will diminish through the night, but northerly winds aloft remain strong, causing LLWS across the region through Wednesday morning. Northerly winds build through Wednesday, generally gusting through 20-25 knots.

Vicinity of SFO... VFR through the TAF period. West winds diminishing through the night with northerly winds aloft causing LLWS early Wednesday morning. Northwest winds build through Wednesday gusting to 20-25 knots, before diminishing through the evening.

SFO Bridge Approach... Similar to SFO.

Monterey Bay Terminals... VFR through the TAF period. Directional LLWS through Wednesday morning as valley drainage flow at the surface meets northerly flow aloft. Northwesterly flow develops on Wednesday with gusts up to 20-25 knots, diminishing again in the evening with directional LLWS resuming at MRY.

MARINE
(Tonight through next Monday)
Issued at 856 PM PDT Tue Apr 30 2024

Breezy and gusty winds last through Friday, with gale force gusts of 40 to 45 knots possible in the outer waters through much of the week. The strong winds will result in hazardous seas and steep wind waves with significant wave heights reaching 10 to 14 feet in the outer waters. Conditions will gradually improve over the weekend and into next week as winds begin to ease. Chances of rain begin early Saturday as a trough descends over the region.

MTR WATCHES/WARNINGS/ADVISORIES
CA...None.
PZ...Small Craft Advisory until 3 AM PDT early this morning for Mry Bay.

Small Craft Advisory from 9 AM this morning to 9 PM PDT this evening for Mry Bay.

Gale Warning until 3 AM PDT early this morning for Pigeon Pt to Pt Pinos 0-10 nm-Pt Arena to Pt Reyes 0-10 nm-Pt Reyes to Pigeon Pt 0-10 nm.

Gale Warning until 3 AM PDT Thursday for Pt Arena to Pt Reyes 10- 60 NM-Pt Pinos to Pt Piedras Blancas 0-10 nm.

Gale Warning until 9 AM PDT Thursday for Pigeon Pt to Pt Pinos 10-60 NM.

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Half Moon Bay
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Wed -- 02:41 AM PDT     Moonrise
Wed -- 04:11 AM PDT     4.67 feet High Tide
Wed -- 04:27 AM PDT     Last Quarter
Wed -- 06:13 AM PDT     Sunrise
Wed -- 11:33 AM PDT     -0.37 feet Low Tide
Wed -- 12:43 PM PDT     Moonset
Wed -- 07:00 PM PDT     4.29 feet High Tide
Wed -- 08:00 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION

Half Moon Bay, California, Tide feet

San Mateo Bridge
Click for Map
Wed -- 02:02 AM PDT     0.00 knots Slack
Wed -- 02:41 AM PDT     Moonrise
Wed -- 04:26 AM PDT     0.68 knots Max Flood
Wed -- 04:27 AM PDT     Last Quarter
Wed -- 06:12 AM PDT     Sunrise
Wed -- 07:12 AM PDT     -0.00 knots Slack
Wed -- 11:14 AM PDT     -1.49 knots Max Ebb
Wed -- 12:42 PM PDT     Moonset
Wed -- 02:48 PM PDT     0.01 knots Slack
Wed -- 05:52 PM PDT     1.53 knots Max Flood
Wed -- 07:59 PM PDT     Sunset
Wed -- 09:39 PM PDT     -0.01 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION

San Mateo Bridge, South San Francisco Bay, California Current, knots

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