Pleasanton, CA Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Pleasanton, CA

June 14, 2024 4:14 PM PDT (23:14 UTC) Change Location
Sunrise 5:43 AM   Sunset 8:32 PM
Moonrise 12:38 PM   Moonset 12:29 AM 
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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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PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 251 Pm Pdt Fri Jun 14 2024

.small craft advisory in effect through Saturday evening - .

This afternoon - SW wind 10 to 15 kt, becoming W 15 to 20 kt late. Waves around 2 ft or less.

Tonight - W wind 15 to 20 kt. Waves around 2 ft or less.

Sat - W wind 10 to 15 kt, rising to 15 to 20 kt in the afternoon. Waves around 2 ft or less.

Sat night - W wind 15 to 20 kt, easing to 10 to 15 kt after midnight. Waves around 2 ft or less.

Sun - W wind 10 to 15 kt, rising to 15 to 20 kt in the afternoon. Waves around 2 ft or less.

Sun night - W wind 15 to 20 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 - SW wind 10 to 15 kt, easing to 5 to 10 kt after midnight. Waves around 2 ft or less.

PZZ500 251 Pm Pdt Fri Jun 14 2024

Synopsis for the central california coast and bays including the Monterey bay - Greater farallones - .and cordell bank national marine sanctuaries - .
strong north and northwest winds with gale force gusts last through much of the weekend. Significant wave heights up to around 12 to 15 feet in the outer waters and 10 to 14 feet in the inner waters continue into the weekend. Hazardous conditions continue into the next work week as winds remain strong and seas remain elevated. Seas start to diminish in the middle part of the week.


7 Day Forecast for Marine Location Near Pleasanton, CA
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Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 142128 AFDMTR

Area Forecast Discussion National Weather Service San Francisco CA 228 PM PDT Fri Jun 14 2024

New SYNOPSIS, SHORT TERM, LONG TERM, FIRE WEATHER

SYNOPSIS
Issued at 107 PM PDT Fri Jun 14 2024

Dry and windy with elevated fire concerns into early next week.
Seasonal temps and quiet weather thereafter. Potential warming trend for late next week.

SHORT TERM
(This evening through Saturday)
Issued at 107 PM PDT Fri Jun 14 2024

Clear across the area this afternoon as N-S gradients strengthen further with the passing of a shortwave trough this evening. Today will likely be the warmest day until late next week by a few degrees for inland locations. Expecting winds to increase initially overnight tonight in coastal gaps and high elevation areas. Currently seeing this as winds at major sites showing mostly a northerly component and increasing in magnitude as of the last few hours. The ridge ultimately gets flattened by a deeper upper level trough that will move into the West Coast. This will keep temps down over the next several days as well as further strengthen the N-S gradients that will promote windy conditions into early next week.

LONG TERM
(Sunday through next Thursday)
Issued at 107 PM PDT Fri Jun 14 2024

The most noteworthy period of wind and elevated fire weather conditions looks like Sunday into early Monday morning when the N-S gradient is expected to increase to around -8.5mb (SFO-ACV).
For context, this gradient peaked at -5.8 this afternoon, and -4.8 Thursday afternoon. This type of setup will support wind gusts of 35-45 mph, with some areas near the coast and higher terrain seeing gusts up to 50 mph. Confidence remains high in this scenario. Have decided to forgo any fire weather highlights given the critical wind and RH values aren't quite there. Refer to the Fire Weather section for more.

FROM PREVIOUS DISCUSSION...Tuesday and beyond: Winds finally ease as the N-S begins to relax mitigating Marine and Fire Weather concerns. Interesting evolution of the longwave pattern middle of next week. While the pattern looks "troughy" it does show rising 500 mb heights over CA. More importantly, the warming of 850 mb temperatures. This begins to show up by Wednesday and then continue through next week. Rising 500 mb heights and warming 850 mb temperatures will kick off a warming and trend. Latest long range outlook from WPC highlights portions of the Central Valley and SoCal for Excessive Heat. Cluster analysis and NBM guidance supports this highlighting from WPC. Official forecast late next weekend has triple heat impacting interior portions of the Bay Area and Central Coast. Will need to monitor over the coming days.

AVIATION
(18Z TAFS)
Issued at 1032 AM PDT Fri Jun 14 2024

Most of the stratus have cleared creating VFR conditions through the region. VFR is expected to prevail through the TAF period. Models do hint at a slight chance of low ceilings tonight near Monterey Bay but confidence is low at this moment. Winds start to build to breezy to strong, with chances of gusty winds near the coast and gaps.
Winds diminish overnight but will remain relatively moderate to breezy with a chance of LLWS near North Bay as winds become light at the surface. Winds rebuild towards late Saturday morning.

Vicinity of SFO...VFR through the TAF period, with high confidence that winds will keep stratus mixed out. Onshore winds build to breezy and gusty this afternoon, then gradually becoming stronger into late afternoon. Models do not show that AWW winds are expected, but winds are expected to get up to 33 knots and will continue to monitor if there is any changes need. Gusty winds diminish overnight but sustained winds remain breezy before becoming gusty again Saturday afternoon.

SFO Bridge Approach...Similar to SFO.

Monterey Bay Terminals...VFR through the TAF period. Models hint at a small chance for MVFR/IFR conditions overnight but low confidence at this moment. Winds become breezy in the afternoon before returning to light to moderate overnight.

MARINE
(Today through Wednesday)
Issued at 1032 AM PDT Fri Jun 14 2024

Gale force gusts and strong north and northwest winds build across waters and last through much of the weekend. Significant wave heights build up to around 12 to 15 feet in the outer waters and 10 to 14 feet in the inner waters continue into the weekend.
Hazardous conditions continue into the next work week as winds remain strong and seas remain elevated. Mid work week, seas start to diminish.

FIRE WEATHER
Issued at 107 PM PDT Fri Jun 14 2024

Elevated Fire Weather Conditions Through The Weekend

*Less impactful marine layer *Increasing northerly winds, especially higher terrain *Lowering relative humidity values day and night

No major changes from previous.

By tonight into early Saturday, winds become more northerly over the higher terrain of the N and E Bay with gusts 25-35 mph. The developing offshore flow will usher in moderate to locally poor humidity recoveries above 1,000 feet. The drier airmass will ultimately spread across the entire district Saturday afternoon with 15-30% RH minimums across the interior. A slight uptick in RH recoveries on Saturday night as the marine layer tries to re- establish itself below 1,000 feet. Above 1,000 feet will feature another night with moderate to locally poor humidity recoveries Saturday night into Sunday. Despite some strong winds and lowering humidity onshore flow never completely goes aways. It would definitely be on the unusual side to issue a Red Flag Warning in June with some hint of a marine layer/onshore flow. Therefore, will keep a headline in place and continue to message elevated fire weather concerns. It should be noted, that does not mean grass fires will not be in the equation over the weekend. Fine fuels like grass will support fires as seen by recent fire trends.
However, larger fires with thicker fuels (non-grass) will be less likely. 100 and 1000 fuels are still holding onto some winter moisture. A great way to visually see this is watching ERC trends.
The ERC forecast through the weekend does show a trend toward seasonal levels, but not into the widespread critical range.

Regardless, individuals with outdoor activities planned this weekend should be fire weather aware. Be mindful and don't be "that spark".

MM/DB

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

Small Craft Advisory until 3 PM PDT Saturday for Mry Bay.

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




Weather Reporting Stations
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Wind History for Redwood City, CA
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Airport Reports
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Wind History graph: LVK
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Tide / Current for Mowry Slough, San Francisco Bay, California
   
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Mowry Slough
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Fri -- 01:30 AM PDT     Moonset
Fri -- 02:56 AM PDT     2.31 feet Low Tide
Fri -- 05:46 AM PDT     Sunrise
Fri -- 07:04 AM PDT     6.37 feet High Tide
Fri -- 01:38 PM PDT     Moonrise
Fri -- 02:17 PM PDT     1.06 feet Low Tide
Fri -- 08:30 PM PDT     Sunset
Fri -- 08:35 PM PDT     7.70 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Mowry Slough, San Francisco Bay, California, Tide feet
12
am
4.2
1
am
3.2
2
am
2.5
3
am
2.3
4
am
3
5
am
4.4
6
am
5.7
7
am
6.4
8
am
6.2
9
am
5.6
10
am
4.6
11
am
3.4
12
pm
2.3
1
pm
1.5
2
pm
1.1
3
pm
1.3
4
pm
2.2
5
pm
3.6
6
pm
5.2
7
pm
6.7
8
pm
7.5
9
pm
7.7
10
pm
7.2
11
pm
6.2


Tide / Current for Dumbarton Bridge, San Francisco Bay, California Current
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Dumbarton Bridge
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Fri -- 01:30 AM PDT     Moonset
Fri -- 02:19 AM PDT     0.00 knots Slack
Fri -- 05:15 AM PDT     0.83 knots Max Flood
Fri -- 05:46 AM PDT     Sunrise
Fri -- 08:49 AM PDT     -0.00 knots Slack
Fri -- 11:08 AM PDT     -0.66 knots Max Ebb
Fri -- 01:38 PM PDT     Moonrise
Fri -- 02:14 PM PDT     0.00 knots Slack
Fri -- 05:46 PM PDT     1.22 knots Max Flood
Fri -- 08:31 PM PDT     Sunset
Fri -- 09:41 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Dumbarton Bridge, San Francisco Bay, California Current, knots
12
am
-0.5
1
am
-0.4
2
am
-0.1
3
am
0.3
4
am
0.7
5
am
0.8
6
am
0.8
7
am
0.6
8
am
0.3
9
am
-0.1
10
am
-0.5
11
am
-0.7
12
pm
-0.6
1
pm
-0.4
2
pm
-0.1
3
pm
0.3
4
pm
0.8
5
pm
1.2
6
pm
1.2
7
pm
1.1
8
pm
0.8
9
pm
0.4
10
pm
-0.2
11
pm
-0.6


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San Francisco Bay Area, CA,




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