Sunrise 5:47 AM   Sunset 8:25 PM Moonrise 1:41 AM   Moonset 2:19 PM

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PZZ531 San Francisco Bay South Of The Bay Bridge- 235 Pm Pdt Sat Jun 1 2024
.small craft advisory in effect through late tonight - .
This afternoon - W wind 10 to 15 kt. Waves around 2 ft or less. Tonight - W wind 15 to 20 kt. Waves around 2 ft or less.Sun - W wind 10 to 15 kt. Waves around 2 ft or less. Sun night - W wind 10 to 15 kt. Waves around 2 ft or less. Mon - W wind 10 to 15 kt. Waves around 2 ft or less. Mon night - W wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Waves around 2 ft or less. Tue - W wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Waves around 2 ft or less. Tue night - W wind 10 to 15 kt, becoming sw 5 to 10 kt after midnight. Waves around 2 ft or less. Wed - W wind 5 to 10 kt. Waves around 2 ft or less. Wed night - SW wind 5 to 10 kt. Waves around 2 ft or less.

PZZ500 235 Pm Pdt Sat Jun 1 2024
Synopsis for the central california coast and bays including the Monterey bay - Greater farallones - .and cordell bank national marine sanctuaries - .
strong northwest winds with gale force gusts expected over portions of the northern waters today continue into the early night. Winds reduce overnight, but still remain hazardous for small craft across most of the waters. Significant wave heights of up to 11 to 12 feet in the outer waters north of pigeon point continue into Saturday night with 6 to 10 feet elsewhere over the open water. Seas begin to diminish towards the end of the weekend and into next week.

FXUS66 KMTR 012009 AFDMTR

Area Forecast Discussion National Weather Service San Francisco CA 109 PM PDT Sat Jun 1 2024

New SYNOPSIS, SHORT TERM, LONG TERM

SYNOPSIS
Issued at 109 PM PDT Sat Jun 1 2024

Cooler temperatures continue into Monday with coastal stratus developing overnight. Significant warming begins Tuesday with moderate HeatRisk across the interior regions through Thursday.

SHORT TERM
(This evening through Sunday)
Issued at 109 PM PDT Sat Jun 1 2024

Coastal stratus continues to gradually erode in the western San Mateo Peninsula and the Monterey Bay region, expected to clear through the rest of the afternoon. Widespread marine layer stratus is expected again across the lower elevations in the SF Bay Area and Central Coast tonight into Sunday morning, facilitated by a deep marine layer (2000 ft or greater as measured by the Fort Ord profiler). This is also helping to generally moderate temperatures from yesterday's warm readings. The most dramatic cooldowns have been in the interior valleys of the East Bay, South Bay, and southern Monterey County, where temperatures are as much as 20 degrees cooler than yesterday at the same time. The North Bay has cooled down slightly, but downsloping winds from the coastal ranges are themselves moderating the cooling effect of the marine layer, which is also slightly compressed compared to the situation further south (1200 feet as measured from the Bodega Bay profiler).

All this corresponds to high temperatures extending from the upper 70s to the lower 80s for the interior valleys, with the mid to upper 80s expected in the North Bay and southern Monterey County valleys, mid 60s to lower 70s along the Bayshore and near Santa Cruz, and the upper 50s to lower 60s along the Pacific coast. Lows tonight are generally in the low to mid 50s, except down into the low 40s across the higher elevations.

LONG TERM
(Sunday night through next Friday)
Issued at 109 PM PDT Sat Jun 1 2024

Relatively cool conditions continue into Monday. Impacts from a deep upper-level trough impacting British Columbia will be limited, and limited mainly to the North Bay, where the fringes of a cold front will moderate high temperatures to the mid 70s to lower 80s in the valleys. Any rain will be limited to the extreme northern reaches of Sonoma County with insignificant accumulations.

The pattern changes on Tuesday with a strengthening ridge over the Pacific migrating into the Western United States. In the interior regions, temperatures are expected to rise into the 90s to the low 100s into Thursday with a moderate HeatRisk, meaning that there's a risk of heat-related illnesses for sensitive populations (children, the elderly, pregnant women, and people without access to shade or air conditioning). The coastal regions remain quite uncertain. The main questions concerning the coastal forecast will any remaining sea breezes be strong enough to outweigh the general warming trend, how far will they travel inland, and how deep will be the remaining marine layer be. To give just one example of the potential uncertainty, the current forecast calls for highs in downtown San Francisco to top out at 78, but some of the model guidance extends into the mid 80s.

There is still a chance that the upper level trough stalls over the West Coast, but the model ensemble clusters suggest that the most likely outcome is that the ridge will start to build more towards the north and bring heat impacts into the northwestern United States. In addition, some of the global models show a southerly wind reversal setting up sometime later on Wednesday into Thursday. With the end of the heat still at least several days out, it's a good idea to stay tuned for further updates as forecast confidence increases.

AVIATION
(18Z TAFS)
Issued at 1037 AM PDT Sat Jun 1 2024

Stratus continues to erode across the area with widespread VFR conditions expected this afternoon through the evening. Breezy to gusty winds build this afternoon with gusts generally in the 20-25 knot range. The immediate coast and KSFO are likely to see greater than 30 kt gusts. These stronger winds appear to last well into the overnight hours, but will ease in the morning. Winds aloft stay strong and more northerly overnight, leading to LLWS concerns. Stratus returns to the coast and the Monterey Bay terminals in the early night, and around the SF Bay into early Sunday. Breezy winds and widespread VFR return Sunday afternoon.

Vicinity of SFO...VFR through early Sunday morning. Expect westerly winds to strengthen into the afternoon, gusting upwards of 35 knots. Winds reduce into the night but remain breezy until early Sunday morning as MVFR CIGs fill over the terminal. VFR and breezy winds are expected to return in the mid to late morning on Sunday.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...Stratus lingers at MRY and along the coast of Monterey bay. VFR returns in the afternoon as winds increase and gust around 20-25 knots. Surface winds look to reduce into the late evening and early night with MVFR CIGs beginning to move inland. However, winds aloft will stay stronger, leading to some LLWS concerns and could delay cloud cover from filling over terminals. Winds aloft reduce in the late night/ early Sunday, with IFR CIGS starting to form around that time.

MARINE
(Today through Wednesday)
Issued at 849 AM PDT Fri May 31 2024

Breezy to gusty northwest winds will continue over the outer waters into the weekend with gale force winds expected late Friday and into Saturday. This will cause a hazardous marine environment.
Significant wave heights will reach up to about 11-12 feet Friday afternoon, but will begin to reduce today through the remainder of the weekend.

CLIMATE
Issued at 127 AM PDT Sat Jun 1 2024

Record high temperatures at the long term climate stations for June 4th and 5th:

Station June 4th June 5th

Santa Rosa 98 in 1949 102 in 1926 Kentfield 101 in 1981 102 in 1926 Napa 102 in 1981 105 in 1903 Richmond 90 in 1955 86 in 1983 Livermore 105 in 1960 104 in 1926 San Francisco 92 in 1949 95 in 1883 SFO Airport 92 in 1955, 1949 89 in 1972 Redwood City 100 in 1981 97 in 2002, 1972 Half Moon Bay 71 in 1955 74 in 1958 Oakland downtown 96 in 1981 87 in 2002 San Jose 98 in 1904 100 in 1926 Salinas Airport 92 in 1949 87 in 1949 King City 102 in 1981, 1957 105 in 1926

MTR WATCHES/WARNINGS/ADVISORIES
CA...None.
PZ...Small Craft Advisory until 9 PM PDT this evening for SF Bay N of Bay Bridge.

Small Craft Advisory until 9 PM PDT this evening for Mry Bay.

Small Craft Advisory from 3 PM to 9 PM PDT Sunday for Mry Bay.

Gale Warning until 3 AM PDT Sunday for Pt Arena to Pt Reyes 0-10 nm.

Small Craft Advisory until 3 PM PDT this afternoon for Pt Reyes to Pigeon Pt 0-10 nm.

Gale Warning until 3 AM PDT Sunday for Pt Reyes to Pigeon Pt 0- 10 nm.

Small Craft Advisory until 3 PM PDT Sunday for Pigeon Pt to Pt Pinos 0-10 nm.

Small Craft Advisory until 9 PM PDT Sunday for Pigeon Pt to Pt Pinos 10-60 NM-Pt Pinos to Pt Piedras Blancas 0-10 nm.

Gale Warning until 9 PM PDT this evening for Pt Arena to Pt Reyes 10-60 NM.

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Smith Slough
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Sat -- 02:41 AM PDT     Moonrise
Sat -- 03:58 AM PDT     1.35 feet Low Tide
Sat -- 05:49 AM PDT     Sunrise
Sat -- 09:08 AM PDT     6.23 feet High Tide
Sat -- 03:19 PM PDT     Moonset
Sat -- 03:30 PM PDT     0.73 feet Low Tide
Sat -- 08:24 PM PDT     Sunset
Sat -- 09:45 PM PDT     8.00 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Smith Slough, San Francisco Bay, California, Tide feet

Dumbarton Hwy Bridge
Click for Map
Sat -- 12:36 AM PDT     -0.98 knots Max Ebb
Sat -- 02:40 AM PDT     Moonrise
Sat -- 03:59 AM PDT     0.01 knots Slack
Sat -- 05:48 AM PDT     Sunrise
Sat -- 06:56 AM PDT     1.24 knots Max Flood
Sat -- 09:40 AM PDT     -0.00 knots Slack
Sat -- 12:49 PM PDT     -0.89 knots Max Ebb
Sat -- 03:18 PM PDT     Moonset
Sat -- 03:52 PM PDT     0.01 knots Slack
Sat -- 07:07 PM PDT     1.60 knots Max Flood
Sat -- 08:24 PM PDT     Sunset
Sat -- 10:01 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION

Dumbarton Hwy Bridge, South San Francisco Bay, California Current, knots

Full Color Weather Map

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