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Sample Forecast for Sausalito, CA

October 4, 2024 4:40 AM PDT (11:40 UTC) Change Location
Sunrise 7:07 AM   Sunset 6:48 PM
Moonrise 7:58 AM   Moonset 6:35 PM 
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NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

Marine Forecasts
   
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PZZ545 Coastal Waters From Point Reyes To Pigeon Point California Out To 10 Nm- 211 Am Pdt Fri Oct 4 2024

Rest of tonight - NW wind around 5 kt. Seas 3 to 5 ft. Wave detail: nw 4 ft at 12 seconds. Patchy dense fog.

Fri - NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: nw 4 ft at 12 seconds and S 2 ft at 16 seconds. Patchy dense fog in the morning.

Fri night - NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: nw 3 ft at 11 seconds and S 2 ft at 15 seconds.

Sat - N wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: nw 3 ft at 7 seconds and sw 2 ft at 15 seconds.

Sat night - NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: nw 3 ft at 8 seconds and S 2 ft at 15 seconds.

Sun - NW wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: nw 3 ft at 7 seconds and sw 2 ft at 14 seconds.

Sun night - NW wind 5 to 10 kt. Seas 3 to 5 ft. Wave detail: nw 4 ft at 7 seconds and S 2 ft at 14 seconds.

Mon - NW wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Seas 3 to 5 ft. Wave detail: nw 4 ft at 7 seconds and sw 2 ft at 14 seconds.

Mon night - NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave detail: nw 6 ft at 8 seconds and S 2 ft at 13 seconds.

Tue - NW wind 10 to 15 kt. Seas 5 to 7 ft. Wave detail: nw 6 ft at 8 seconds and S 2 ft at 13 seconds.

Tue night - NW wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Seas 4 to 6 ft. Wave detail: nw 5 ft at 8 seconds and sw 2 ft at 13 seconds. Patchy fog.

- .san francisco bar/fourfathom bank forecast - - .
in the deep water channel - .mixed seas of 2 to 4 ft at 11 seconds.
across the bar - .mixed seas of 3 to 5 ft at 11 seconds. Maximum ebb current of 1.7 kt at 06:18 am Friday and 3.1 kt at 06:04 pm Friday.
PZZ500 211 Am Pdt Fri Oct 4 2024

Synopsis for the central california coast and bays including the Monterey bay - Greater farallones - .and cordell bank national marine sanctuaries - .
dry Thunderstorm activity is being observed in the southern waters with lighting possible into the mid morning. Light winds are expected through the weekend. More moderate winds arrive into the next work week with seas beginning to become more elevated.

7 Day Forecast for Marine Location Near Sausalito, CA
   
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Tide / Current for San Francisco Bar, California
  
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San Francisco Bar
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Fri -- 12:38 AM PDT     4.60 feet High Tide
Fri -- 06:02 AM PDT     1.93 feet Low Tide
Fri -- 07:09 AM PDT     Sunrise
Fri -- 08:58 AM PDT     Moonrise
Fri -- 12:19 PM PDT     5.42 feet High Tide
Fri -- 06:43 PM PDT     0.49 feet Low Tide
Fri -- 06:47 PM PDT     Sunset
Fri -- 07:36 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

San Francisco Bar, California, Tide feet
12
am
4.5
1
am
4.6
2
am
4.2
3
am
3.5
4
am
2.8
5
am
2.2
6
am
1.9
7
am
2.1
8
am
2.7
9
am
3.5
10
am
4.3
11
am
5
12
pm
5.4
1
pm
5.3
2
pm
4.7
3
pm
3.6
4
pm
2.4
5
pm
1.3
6
pm
0.6
7
pm
0.5
8
pm
0.9
9
pm
1.6
10
pm
2.5
11
pm
3.3

Tide / Current for South Channel, San Francisco Bay Approach, California Current
  
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South Channel
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Fri -- 02:06 AM PDT     -0.00 knots Slack
Fri -- 04:31 AM PDT     -1.15 knots Max Ebb
Fri -- 07:08 AM PDT     Sunrise
Fri -- 07:36 AM PDT     0.00 knots Slack
Fri -- 08:58 AM PDT     Moonrise
Fri -- 10:26 AM PDT     1.04 knots Max Flood
Fri -- 01:41 PM PDT     -0.00 knots Slack
Fri -- 04:43 PM PDT     -1.61 knots Max Ebb
Fri -- 06:47 PM PDT     Sunset
Fri -- 07:36 PM PDT     Moonset
Fri -- 08:08 PM PDT     0.00 knots Slack
Fri -- 11:07 PM PDT     1.25 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

South Channel, San Francisco Bay Approach, California Current, knots
12
am
1
1
am
0.6
2
am
0.1
3
am
-0.6
4
am
-1.1
5
am
-1.1
6
am
-0.8
7
am
-0.3
8
am
0.2
9
am
0.7
10
am
1
11
am
1
12
pm
0.8
1
pm
0.4
2
pm
-0.2
3
pm
-0.9
4
pm
-1.5
5
pm
-1.6
6
pm
-1.3
7
pm
-0.7
8
pm
-0.1
9
pm
0.5
10
pm
1
11
pm
1.2

Area Discussion for San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 040617 AFDMTR

Area Forecast Discussion National Weather Service San Francisco CA 1117 PM PDT Thu Oct 3 2024

New AVIATION

SYNOPSIS
3 Issued at 200 PM PDT Thu Oct 3 2024

Hot and dry conditions continue with dangerous heat and potentially critical fire weather conditions for the remainder of the work week. The heatwave did peak the last couple of days, but impacts from Moderate to Extreme HeatRisk at times, will be felt into the weekend. The beginning of next week does hint at relief from the heatwave, however temperatures are still slightly above normal for interior locations toward the end of the extended forecast.

UPDATE
Issued at 817 PM PDT Thu Oct 3 2024

Warm conditions continue tonight across the interior Bay Area and Central Coast, with current temperatures in the 80s and lower 90s across the thermal belts. The Excessive Heat Warning for the North Bay Interior Mountains does expire at 11 PM tonight, but a Heat Advisory will be issued at that time to last through Saturday. Elsewhere as stated in the previous discussion, heat products (Excessive Heat Warnings and Heat Advisories) have been extended into Saturday as the forecast has trended warmer. The operations floor considered letting the Heat Advisory expire tonight for the coastal regions, as temperatures will start to cool slightly. However, based on the warming trend for the weekend, and the cumulative effects of heat on the human body, we ultimately elected to continue the Heat Advisory through Saturday.
An extension into Sunday is still possible, particularly for the interior Bay Area where widespread Major HeatRisk (heat that impacts anyone without effective cooling or adequate hydration)
continues.

The Red Flag Warning in the interior Central Coast was allowed to expire, but near critical fire weather continues into the weekend.
For more information, see the updated Fire Weather discussion.

DialH

SHORT TERM
Issued at 240 PM PDT Thu Oct 3 2024 (This evening through Friday)

Key Points: * Updated forecast trending warmer into the weekend * Some heat hazard products have been extended into Saturday * Red Flag Warning may expire this evening, but NEAR CRITICAL conditions persist in the weekend * Check latest SFONPWMTR for Heat Product updates

The Bay Area and Central Coast continue to be gripped by an impressive round of heat. While 24 hour trends do show cooler temperatures (slightly cooler airmass/shifting of upper level high pressure)that is not the whole story. Current observations around the region still show many locations well into the 90s and lower 100s. Pretty impressive to see Big Sur sitting at 104 degrees. Additionally, San Jose has a chance of breaking 100 degrees again. If that happens, it would be the first time San Jose is 100 deg or more three days in a row for October. I have been be forecasting CA weather for nearly 20 years and this event is one of the more notable heat events for October that I can remember. Not just daytime temps, but overnight lows staying in the 80s even with longer nights.

Tonight into Friday: The ridge overhead will provide another night of mild temperatures and mostly clear skies. Thermal belts will remain active with lows staying in the 70s/80s hills and mid 50s to lower 60s valleys/coast. The one thing that could be a plus is a southerly surge sneaking up the coast. Not looking promising at the moment, but low cigs remain around Pt Conception and the HRRR does show some cloud sneaking up the coast to Monterey Bay (20-30%). This may bring some shallow/immediate coastal relief, but most of the forecast area won't feel any impacts.

To round out the workweek...a slight pause or downward dip in the heat. A shortwave trough (currently seen on satellite off the PacNW) will move through flattening of the ridge. Temperatures will cool 3-5 degrees. Despite the cooling HeatRisk still remain elevated and temperatures will still be near record levels. Highs on Friday will be in the 70s to near 90 coast and upper 80s to lower 100s inland/mts. Current Heat Advisory and Excessive Heat Warning remain for Friday. The exception will be N Bay Mts where conditions meet Heat Advisory. This will likely be issued by the night shift.

LONG TERM
Issued at 250 PM PDT Thu Oct 3 2024 (Friday night through next Wednesday)

The brief dip with the longwave pattern goes away as the upper level ridge surges northward over the forecast area again. For a few days models showed a gradual step down temperature wise for Saturday and Sunday, but latest forecast has trended warmer.
Still no real sign of a big marine push and the ridge doesn't go away. Therefore, temperatures have been raised both day and night for Saturday and Sunday. HeatRisk still highlights a large portion of the Bay Area for Major on Saturday with even a few pockets of Extreme. Have extended the Excessive Heat Warning for South and East Bay, and Santa Cruz Mts. Elsewhere will be a Heat Advisory for Saturday. The good news is subtle cooling Sunday will allow for many locations to drop categories HeatRisk. Will likely only need advisories on Sunday.

Next week, the cooldown has been delayed and Monday now looks to hold onto some impactful heat. Will have to evaluate over time if any advisories are needed on Monday. Cooler weather finally returns Tuesday as the ridge breaks down and a trough approaches form the northwest. Onshore flow and a possible marine layer return.

AVIATION
(06Z TAFS)
Issued at 1117 PM PDT Thu Oct 3 2024

VFR through the TAF period for all of the TAF sites. Dry conditions will limit cloud cover for all but the most immediate coast. Expect light and variable winds overnight with more moderate winds expected into the afternoon, but becoming light again into the mid evening and early night.

Vicinity of SFO...VFR through the TAF period. Winds stay light through the night and the morning before increasing to around 12 kts in the mid afternoon before becoming light again Friday night.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...VFR through the TAF period. Expect light and variable winds through the night but winds become moderate in the late morning. Some low clouds look to form in the Monterey Bay itself, but do not look to approach the terminals. Winds become light again Friday night.

MARINE
(Tonight through next Wednesday)
Issued at 817 PM PDT Thu Oct 3 2024

Gentle to moderate northerly winds will prevail through Sunday as high pressure remains in place. As the pressure gradient tightens Monday, northwesterly breezes become moderate to fresh and seas become rough in the outer waters.

FIRE WEATHER
Issued at 817 PM PDT Thu Oct 3 2024

Although the Red Flag Warning for the interior Central Coast has been allowed to expire, near critical fire weather conditions continue through the weekend across the district, due to low relative humidities and low fuel moistures. Pulses of offshore winds could develop in the higher elevations each night and morning, especially in the North Bay and Central Coast, but these are not expected to reach Red Flag criteria.

From the previous discussion: One potential area of concern are winds picking up across the higher terrain of the N Bay due to a passing disturbance to the north. Not strong enough to need a Red Flag warning, but some gusts of 20-25 mph will be possible.

Additionally, the Central Coast will continue to get bursts of offshore flow through Saturday keeping fire weather concerns elevated.

Still valid: Other concerns from a fire weather perspective are the fuels. Latest observations suggest critically dry fuels.
Current 100 and 1000 hr fuels are near or slightly below avg, but trending drying Current 10 hr fuels are critically low as well.
Additionally, latest intel with Live Fuel Moisture shows values trending toward the 60% threshold. Simply put, fuels are receptive to fire starts.

CLIMATE
Issued at 832 PM PDT Thu Oct 3 2024

Record high temperatures and years of occurrence at the long term climate stations October 4 through October 5.

Station Oct 4 Oct 5

Santa Rosa 101 2020 103 1933 Kentfield 99 1987 100 1987 Napa 100 1987 101 1987 Richmond 99 1987 99 1987 Livermore 106 1980 100 1980 San Francisco 100 1987 102 1987 SFO Airport 95 1987 99 1987 Redwood City 101 1980 99 1987 Half Moon Bay 87 1953 90 2023 Oakland museum 92 2014 96 1987 San Jose 96 1987 101 1987 Salinas Airport 100 1987 105 1987

MTR WATCHES/WARNINGS/ADVISORIES
CA...Heat Advisory until 11 PM PDT Saturday for CAZ006-506-509- 528>530.

Excessive Heat Warning until 11 PM PDT Saturday for CAZ502>504- 508-510-512>518.

PZ...None.


Weather Reporting Stations
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Stations Dist Age Wind AirWater WavesinHgDewPt
FTPC1 - 9414290 - San Francisco, CA 1 mi70 minSSE 2.9G4.1 58°F 29.84
PXOC1 - 9414311 - San Francisco (Pier 1), CA 4 mi70 minWNW 1G1.9 61°F 29.80
PXSC1 4 mi82 min 61°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 7 mi70 minNW 2.9G2.9 61°F 29.83
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 7 mi70 minNNE 1G1.9
PPXC1 - 9414847 - Richmond (Point Potrero), CA 8 mi70 minN 2.9G2.9 62°F 29.85
RCMC1 - 9414863 - Richmond, CA 8 mi70 min0G2.9 62°F 65°F29.83
46237 - San Francisco Bar, CA (142) 9 mi70 min 58°F 59°F5 ft
AAMC1 - 9414750 - Alameda, CA 9 mi70 minN 1.9G4.1 63°F 67°F29.85
LNDC1 10 mi70 minNNE 2.9G4.1 62°F 29.83
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 19 mi70 minW 5.1G6 63°F 29.83
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 21 mi60 min 59°F6 ft
MZXC1 - 9415102 - Martinez-Amorco CA 23 mi70 minWNW 13G15 64°F 69°F29.82
UPBC1 23 mi70 minWNW 14G16
RTYC1 - 9414523 - Redwood City, CA 25 mi70 minSW 1G1.9 65°F 74°F29.84
PCOC1 - 9415144 - Port Chicago, CA 28 mi70 minSW 8.9G11 63°F 29.80
PRYC1 - 9415020 - Point Reyes, CA 30 mi70 min 29.85
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 34 mi70 minNW 6G8 69°F 29.79
SFXC1 - San Francisco Bay Reserve, CA 35 mi115 minWNW 8 64°F 29.8048°F
1801593 39 mi130 minNNW 8.6G9.7 58°F 59°F7 ft29.8456°F


Wind History for San Francisco, CA
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Airport Reports
   
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GEOS Local Image of Central West Coast  
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San Francisco Bay Area, CA,





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