San Mateo, CA Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for San Mateo, CA

June 14, 2024 1:55 PM PDT (20:55 UTC) Change Location
Sunrise 5:45 AM   Sunset 8:33 PM
Moonrise 12:40 PM   Moonset 12:31 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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PZZ531 San Francisco Bay South Of The Bay Bridge- 844 Am Pdt Fri Jun 14 2024

.small craft advisory in effect from 3 pm pdt this afternoon through late Saturday night - .

Today - SW wind 5 to 10 kt, becoming W 20 to 25 kt. 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 with gusts up to 35 kt, easing to 10 to 15 kt after midnight. Waves around 2 ft or less.

Sun - W wind 10 to 15 kt, rising to 20 to 25 kt with gusts up to 35 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 around 10 kt, rising to 15 to 20 kt in the afternoon. Waves around 2 ft or less.

Mon night - W wind 15 to 20 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.

PZZ500 844 Am 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 - .
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.


7 Day Forecast for Marine Location Near San Mateo, CA
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Area Discussion for - San Francisco/Monterey Bay Area, CA
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FXUS66 KMTR 141732 AFDMTR

Area Forecast Discussion National Weather Service San Francisco CA 1032 AM PDT Fri Jun 14 2024

New AVIATION, MARINE

SYNOPSIS
Issued at 208 AM PDT Fri Jun 14 2024

Slight temperature warm up for Friday, especially away from the coast. Near normal temperatures over the weekend. Northerly winds will increase later Friday and persist over the weekend. The stronger winds will lead to hazardous conditions over the coastal waters and elevated fire weather conditions overland. Longer range outlook shows a notable warm up late next week.

SHORT TERM
Issued at 208 AM PDT Fri Jun 14 2024 (Today and tonight)

Overnight satellite imagery shows a June Gloom-ish type picture with marine layer stratus covering the coast from the Golden Gate southward. The stratus is also at a depth of 1700 feet per Fort Ord profiler with decent inland coverage around Monterey Bay, Hollister, and Salinas Valley. Despite the cloudy start for some areas, today will generally be warmer than Thursday. The reason? Building shortwave ridge aloft in from the south and increasing N-S gradient (SFO-ACV). In other words, a higher likelihood of seeing sunshine today, even at the coast. Temperatures today will be in the 60s to mid 70s coast/bays and upper 70s to upper 90s inland. The warmest temperatures will be interior portions of Monterey/San Benito with isolated HeatRisk values in the Moderate category.

For tonight, the shortwave ridge building in from the south will battle a passing upper level trough through NorCal and the PacNW.
This passing trough will help to established increasing N-S pressure gradients and developing offshore flow over the higher terrain. As a result, the marine layer will be much less and confined more to the coast.

LONG TERM
Issued at 250 AM PDT Fri Jun 14 2024 (Saturday through Thursday)

The weekend into early next week: the shortwave ridge gets flattened as the aforementioned longwave trough (embedded upper low) becomes more entrenched across the West Coast. The end result? Cooler, but seasonable, temperatures. Highs ranging from 60s to mid 70s coast/bays and mid 70s to lower 90s inland. The more noteworthy weather item over the weekend will be the increasing northerly flow leading to marine hazards and fire weather concerns. See MARINE and FIRE WEATHER sections for specific details. Generally speaking, the northerly gradient will increase further and peak close to -8.5mb for SFO-ACV by Saturday night/Sunday. That type of set up will make it hard for the marine layer to remain , but also support wind gusts of 35-45 mph. Could even see some gusts approach 50 mph over the coastal waters.
Confidence is pretty high for the stronger wind potential as ensembles and ECMWF Extreme Forecast Index highlight portions of the CWA In fact, the ECMWF EFI pin-points strongest winds along the Big Sur coast south to Pt Conception. While not strong enough to warrant a Wind Advisory they will be able to blow loose items around, especially along the coast, bays, and N-S oriented valleys.

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 315 AM 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 notable change from previous forecast. Friday will feature the last full day of onshore flow with an impactful marine layer (cool/higher RH). By late Friday night/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

MTR WATCHES/WARNINGS/ADVISORIES
CA...None.
PZ...Small Craft Advisory from 3 PM this afternoon to 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 from 3 PM this afternoon to 3 AM PDT Sunday for Pt Reyes to Pigeon Pt 0-10 nm.




Weather Reporting Stations
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Stations Dist Age Wind AirWater WavesinHgDewPt
RTYC1 - 9414523 - Redwood City, CA 8 mi56 minN 7G9.9 64°F 30.05
AAMC1 - 9414750 - Alameda, CA 13 mi56 minWSW 9.9G13 59°F 30.07
LNDC1 14 mi56 minWSW 8.9G11 60°F 30.06
OKXC1 - 9414776 - Oakland (Berth 34), CA 15 mi56 minW 6G8.9 60°F 30.06
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 15 mi56 minSSW 8.9G13
PXOC1 - 9414311 - San Francisco (Pier 1), CA 15 mi56 minW 5.1G12 60°F 30.03
PXSC1 15 mi56 min 60°F
FTPC1 - 9414290 - San Francisco, CA 17 mi56 minWSW 5.1G18 58°F 30.05
46237 - San Francisco Bar, CA (142) 22 mi56 min 55°F 59°F6 ft
PPXC1 - 9414847 - Richmond (Point Potrero), CA 22 mi56 minSSW 14G18 56°F 30.06
TIBC1 - Tiburon Pier, San Francisco Bay, CA 22 mi162 minSSE 11 59°F 30.0151°F
RCMC1 - 9414863 - Richmond, CA 24 mi56 minS 8.9G13 59°F 30.04
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 30 mi76 min 54°F8 ft
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 32 mi56 minWSW 11G15 67°F 30.00
MZXC1 - 9415102 - Martinez-Amorco CA 32 mi56 minWNW 11G13 72°F 30.00
UPBC1 33 mi56 minWNW 12G14
PCOC1 - 9415144 - Port Chicago, CA 35 mi56 minW 13G14 72°F 29.99
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 38 mi56 minNW 15G18 72°F 29.97
1801583 40 mi86 minNW 17G20 54°F 53°F9 ft30.1149°F
PRYC1 - 9415020 - Point Reyes, CA 45 mi56 min 30.07
SFXC1 - San Francisco Bay Reserve, CA 45 mi71 minW 11 74°F 29.9853°F


Wind History for Redwood City, CA
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Airport Reports
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Wind History graph: SFO
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Tide / Current for Coyote Point Marina, San Francisco Bay, California
   
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Coyote Point Marina
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Fri -- 01:20 AM PDT     2.50 feet Low Tide
Fri -- 01:31 AM PDT     Moonset
Fri -- 05:47 AM PDT     Sunrise
Fri -- 06:41 AM PDT     5.02 feet High Tide
Fri -- 01:01 PM PDT     1.17 feet Low Tide
Fri -- 01:39 PM PDT     Moonrise
Fri -- 07:54 PM PDT     6.58 feet High Tide
Fri -- 08:32 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Coyote Point Marina, San Francisco Bay, California, Tide feet
12
am
2.9
1
am
2.5
2
am
2.6
3
am
3.1
4
am
3.8
5
am
4.5
6
am
4.9
7
am
5
8
am
4.6
9
am
3.9
10
am
2.9
11
am
2.1
12
pm
1.4
1
pm
1.2
2
pm
1.4
3
pm
2.2
4
pm
3.3
5
pm
4.5
6
pm
5.6
7
pm
6.3
8
pm
6.6
9
pm
6.2
10
pm
5.4
11
pm
4.4


Tide / Current for San Mateo Bridge, South San Francisco Bay, California Current
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San Mateo Bridge
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Fri -- 01:31 AM PDT     Moonset
Fri -- 02:51 AM PDT     0.00 knots Slack
Fri -- 05:08 AM PDT     0.67 knots Max Flood
Fri -- 05:47 AM PDT     Sunrise
Fri -- 08:06 AM PDT     -0.00 knots Slack
Fri -- 11:15 AM PDT     -0.94 knots Max Ebb
Fri -- 01:39 PM PDT     Moonrise
Fri -- 02:40 PM PDT     0.00 knots Slack
Fri -- 05:37 PM PDT     1.15 knots Max Flood
Fri -- 08:31 PM PDT     Sunset
Fri -- 09:04 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

San Mateo Bridge, South San Francisco Bay, California Current, knots
12
am
-0.8
1
am
-0.6
2
am
-0.3
3
am
0.1
4
am
0.5
5
am
0.7
6
am
0.6
7
am
0.4
8
am
0.1
9
am
-0.4
10
am
-0.7
11
am
-0.9
12
pm
-0.9
1
pm
-0.6
2
pm
-0.3
3
pm
0.2
4
pm
0.8
5
pm
1.1
6
pm
1.1
7
pm
1
8
pm
0.6
9
pm
0
10
pm
-0.5
11
pm
-0.8


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GEOS Local Image of Central West Coast   
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San Francisco Bay Area, CA,




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