Sunrise 5:46 AM   Sunset 8:30 PM Moonrise 4:33 AM   Moonset 8:21 PM

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PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 220 Am Pdt Thu Jun 6 2024
Rest of tonight - SW wind 5 to 10 kt. Waves around 2 ft or less.Thu - SW wind 5 to 10 kt. Waves around 2 ft or less. Thu night - SW wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Waves around 2 ft or less. A slight chance of drizzle after midnight. Fri - SW wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Waves around 2 ft or less. Fri night - SW wind 10 to 15 kt. Waves around 2 ft or less. A slight chance of drizzle after midnight. Sat - SW wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Waves around 2 ft or less. Sat night - SW wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Waves around 2 ft or less. Sun - SW wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Waves around 2 ft or less. Sun night - SW wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Waves around 2 ft or less. Mon - SW wind around 5 kt, rising to 10 to 15 kt in the afternoon. Waves around 2 ft or less. Mon night - SW wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Waves around 2 ft or less.

PZZ500 220 Am Pdt Thu Jun 6 2024
Synopsis for the central california coast and bays including the Monterey bay - Greater farallones - .and cordell bank national marine sanctuaries - .
expect breezy northerly winds to persist through the day before gradually easing into Friday. These winds along with rough seas will lead to hazardous conditions for small craft. A moderate period northwest swell will continue impact the coastal waters but will diminish Friday through Saturday before waves build again towards the end of the period.

FXUS66 KMTR 060734 AFDMTR

Area Forecast Discussion National Weather Service San Francisco CA 1234 AM PDT Thu Jun 6 2024

New AVIATION, MARINE

SYNOPSIS
Issued at 1255 PM PDT Wed Jun 5 2024

Hot again today as the heatwave peaks. A couple of degrees cooler Thursday, followed by further cooling Friday. Above average temperatures hang around through the weekend. Another potential hot period mid next week.

UPDATE
Issued at 754 PM PDT Wed Jun 5 2024

Another warm to hot day today, especially in locations further from the coast. We thought we had a record high today at Half Moon Bay, but further review of the data and surrounding stations makes us think that the observation was erroneous. Most of the region should start to cool down tomorrow, with the inland valleys seeing highs from the 90s into the low 100s in the most inland places.
The operations floor considered ending the Heat Advisory early as a result of the cooldown. However, the combination of temperatures remaining above seasonal averages, and the cumulative effect of the last two days of heat, have caused us to keep the Heat Advisory in effect into tomorrow.

DialH

SHORT TERM
(This evening through Thursday)
Issued at 1255 PM PDT Wed Jun 5 2024

Temperature today running pretty well in line with the forecast.
Based off of temperatures yesterday, kept today's forecast nudged toward the 90th percentile. Many locations will see highs today very similar to yesterday, a few degrees higher for areas south of the SF Bay Area. The only exception would be the immediate coastline where onshore flow is battling to keep the shallow marine layer intact. These areas are running a couple of degrees cooler. By Thursday, a shortwave trough around the periphery of a deep upper low in the Gulf of Alaska traverses through the West Coast, deepening the marine layer a bit and slightly enhancing the onshore flow. This will cool temperatures further for most locations, aside from the far inland spots like interior Napa, far eastern Alameda and Contra Costa, and interior Monterey/San Benito.

LONG TERM
(Thursday night through next Tuesday)
Issued at 1255 PM PDT Wed Jun 5 2024

The Heat Advisory expires at midnight Thursday night with further deepening of the marine layer and additional cooling expected by Friday into the weekend. Above average temperatures persist through the weekend as upper level ridging dominates the pattern over the west. However, persistent onshore flow and a weak trough over the eastern Pacific should moderate our temps enough to keep them a bit lower into early next week. The middle of next week looks like our next potentially impactful warm period as the ridge builds once again.

AVIATION
(06Z TAFS)
Issued at 1234 AM PDT Thu Jun 6 2024

Sky condition is VFR mixed with MVFR surface visibility in haze along the coastline. Microphysics satellite imagery shows fog slowly moving northward along the Big Sur Coast connected to an extensive pool of stratus and fog from Point Conception and areas to the southeast through southwest. In our forecast area the marine layer depth varies from a few hundred feet along the coast of the North Bay to almost 1,000 feet along the north Central Coast. Bodega Bay and Fort Ord profilers and Wednesday evening's Oakland upper sounding show the marine layer temperature inversion is still strong. The ACV-SFO pressure gradient (northerly wind)
is 6.2 mb and slowly decreasing, the SBA-SFO and SMX-SFO pressure gradients (southerly wind) have strengthened to 2.7 mb and 2.6 mb respectively, while the SFO-SAC pressure gradient is onshore at 2.3 mb.

As of current, the meso-scale model output are under-forecasting the aforementioned southerly pressure gradient(s) by at least 50%.
With the newly developed combined northerly and (under-forecasted)
southerly wind potential coupled to the onshore wind, am expecting at least what the meso-scale models show for cooling at 1000 mb (~300 feet) and at 925 mb (~2500 feet), therefore the lower level temperature inversion should weaken somewhat today below the 850 mb level (~5000 feet). Bottom line, this and current nocturnal radiative cooling provides coastal stratus and fog /VLIFR-IFR/ a foothold for additional development through daybreak, then mixing out temporarily during the day with the usual vertical mixing then redeveloping tonight and Friday morning.

Vicinity of SFO...VFR. West wind 5 to 15 knots through this morning, increasing to 18 to 25 knots in the afternoon and evening. West wind decreasing tonight and early Friday morning to near 10 knots.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...VFR then LIFR-IFR developing early this morning between 12z-16z, stratus and fog mixing out after 16z to VFR during the day. West to northwest winds in the afternoon, possibly shifting to southwest at KMRY depending how strong the southerly wind reversal is during the day. KSNS surface wind northwesterly and becoming gusty in the afternoon. Stratus /IFR/ forecast this evening and likely to continue tonight and Friday morning.

MARINE
(Tonight through next Tuesday)
Issued at 1043 PM PDT Wed Jun 5 2024

Moderate northerly winds will persist through Thursday before gradually easing into Friday. The stronger winds through Thursday will lead to hazardous conditions for small craft. A moderate period Northwest swell will continue impact the coastal waters through Thursday. Swell will diminish Friday through Saturday before waves build again towards the end of the period.

BEACHES
Issued at 505 PM PDT Wed Jun 5 2024

A Beach Hazards Statement is in effect from Wednesday morning through Thursday evening.

Forecast remains on track. Moderate period swell is entering the coastal waters at 14-17 seconds with heights varying 7-11 feet.
The would generate breaking waves of 8-15 feet with locally higher waves at favored break points. Sneaker waves can run over 100 ft up a dry beach, pulling people in the water from rocks, jetties, and beaches. Inexperienced swimmers should stay out of the water. Observe the ocean for 20 minutes before relaxing on the beach. The hot weather inland will lead to more people visiting the beach this week. Know where lifeguards are, obey their instructions, and never turn your back on the ocean!

MTR WATCHES/WARNINGS/ADVISORIES
CA...Beach Hazards Statement through Thursday evening for CAZ006-505- 509-530.

Heat Advisory until midnight PDT Thursday night for CAZ503-504- 506-510-512>516-518.

PZ...Small Craft Advisory until 3 AM PDT Friday for Pt Arena to Pt Reyes 0-10 nm-Pt Arena to Pt Reyes 10-60 NM.

Small Craft Advisory until 9 PM PDT Thursday for Pigeon Pt to Pt Pinos 10-60 NM-Pt Reyes to Pigeon Pt 0-10 nm.

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San Francisco
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Thu -- 05:33 AM PDT     Moonrise
Thu -- 05:40 AM PDT     New Moon
Thu -- 05:47 AM PDT     Sunrise
Thu -- 06:10 AM PDT     -1.62 feet Low Tide
Thu -- 01:33 PM PDT     4.63 feet High Tide
Thu -- 05:43 PM PDT     2.84 feet Low Tide
Thu -- 08:29 PM PDT     Sunset
Thu -- 09:21 PM PDT     Moonset
Thu -- 11:49 PM PDT     6.53 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION

San Francisco, California, Tide feet

Golden Gate Bridge .8 mi E .
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Thu -- 12:52 AM PDT     -0.00 knots Slack
Thu -- 04:36 AM PDT     -3.98 knots Max Ebb
Thu -- 05:33 AM PDT     Moonrise
Thu -- 05:40 AM PDT     New Moon
Thu -- 05:47 AM PDT     Sunrise
Thu -- 08:21 AM PDT     0.01 knots Slack
Thu -- 11:29 AM PDT     3.99 knots Max Flood
Thu -- 02:51 PM PDT     -0.00 knots Slack
Thu -- 05:19 PM PDT     -1.55 knots Max Ebb
Thu -- 08:05 PM PDT     0.00 knots Slack
Thu -- 08:29 PM PDT     Sunset
Thu -- 09:21 PM PDT     Moonset
Thu -- 10:54 PM PDT     2.56 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION

Golden Gate Bridge .8 mi E ., San Francisco Bay, California Current, knots

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