Sunday, March7, 2021
Privacy Policy
L-36.com

Marine Weather and Tides
Concord, CA

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:28AMSunset 6:09PM Sunday March 7, 2021 3:17 PM PST (23:17 UTC) Moonrise 2:54AMMoonset 12:23PM Illumination 32% Phase: Waning Crescent; Moon at 24 days in cycle
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
    EDIT      (on/off)   Help
PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 201 Pm Pst Sun Mar 7 2021
.small craft advisory in effect from Monday morning through Monday afternoon...
Today..W winds 5 to 15 kt. Gusts up to 25 kt this afternoon.
Tonight..W winds 5 to 15 kt.
Mon..SW winds 15 to 25 kt with gusts up to 30 kt. A chance of rain.
Mon night..SW winds 5 to 15 kt. A chance of rain.
Tue..S winds 5 to 15 kt. Rain.
Tue night..SW winds 5 to 10 kt. Rain.
Wed..W winds up to 10 kt. Rain likely.
Thu..W winds up to 10 kt.
PZZ500 201 Pm Pst Sun Mar 7 2021
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Northwest winds will prevail through the evening with locally moderate occasionally gusty winds along the immediate coast, particularly south of point sur, between pescadero and davenport, through the golden gate gap, and north of point reyes. Northwest winds ease and begin to back towards the west overnight and southwest tomorrow ahead of an approaching storm system that will bring showers and potentially Thunderstorms across the waters through mid week. Moderate northwest swell continues through Sunday, with a stronger northwest swell arriving Monday, bringing hazardous seas conditions for smaller vessels.


7 Day Forecast for Marine Location Near Concord, CA
   Hourly   EDIT   Help
location: 38, -122     debug


Area Discussion for - Sacramento, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS66 KSTO 072142 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 142 PM PST Sun Mar 7 2021

SYNOPSIS. Dry today, then unsettled weather expected through the first half of this week with periods of rain showers, mountain and upper foothill snow showers, and lower elevation afternoon thunderstorms. Lingering snow showers possible over the Sierra Nevada Thursday.

DISCUSSION.

The next storm currently in the Gulf of Alaska will near the area tonight and some showers may pop up over the mountains and north end of the valley by Monday morning. There will be an increase in shower chances on Monday mainly from around Sacramento northward. The atmosphere becomes unstable in the afternoon but profiles are not as unstable as they were yesterday. Thunderstorms may develop over the central and northern Sacramento valley. In general brief heavy rain and small hail would be expected from any thunderstorms. Over the north end of the valley really good shear continues in the models but with the instability not forecast to be as good as yesterday confidence in larger hail forming, funnel clouds and possibly a weak tornado has lowered but we will still have to monitor given the amount of wind shear.

The amount of rain outside of thunderstorm consideration looks low with this first wave but snow levels will be low ranging from 1500 to 2500 feet over Shasta County to 2500 to 3000 feet over the Motherlode. Rainfall amounts do increase over Western Shasta County Monday evening and with the low snow levels have issued a Winter Weather Advisory through Tuesday night for that area. Models are mixed over Western Plumas county with amounts of rain/snow Monday night so have held off issuing anything for that area for now.

On Tuesday the low deepens along the west coast unstable air will continue over the interior but for a greater area with slightly more unstable air. Chances of showers and afternoon thunderstorms will continue. Profiles for thunderstorms indicate an increase in potential for heavy rain and small hail that could lead to some street flooding issues . mainly from near Chico southward. The showery rainfall within the valley during the afternoon and into the early evening hours will likely be intense at times given the convective nature of the atmosphere and make for poor driving conditions.

Snow levels will remain low but look like they may come up by about 500 to 1000 feet during the day. This second wave should have more rainfall associated with it with rain and snow most noticeably increasing Tuesday evening over the western slopes of the Sierra Nevada. Current thinking is that this is when we may need to issue a Winter Weather Advisory for the Sierra Nevada. Any snowfall preceding that time frame looks light with only minor impacts.

The low pressure area will continue to move south along the coast and by Wednesday the central part will be located off the Bay Area. More showers and thunderstorms are expected across the interior with the heavy rain profiles indicated from around Sacramento southward. Snow levels will continue in the 2500 to 3500 foot range.

EXTENDED DISCUSSION (Thursday THROUGH Sunday).

No major changes to the extended forecast. GEFS ensembles and clusters have come into good agreement with placement of upper low over SoCal Thursday. This will keep most precip south of the area, except for a few light showers over the high Sierra, generally south of highway 50. Low will then gradually shift into the Four Corners region with ridge building over NorCal Friday/Saturday. There is continued uncertainty in clusters on Sunday with possible trough trying to move through ridge. Have kept NBM guidance with some low pops going, given low confidence forecast. High temperatures generally from 65 to 70 degrees for Valley locations through the period.

AVIATION.

VFR conditions expected next 24 hours except for localized MVFR conditions with -SHRA after 12z Monday. Winds less than 12 kts expected at TAF sites.

STO WATCHES/WARNINGS/ADVISORIES. Winter Weather Advisory from 7 PM Monday to 4 AM PST Wednesday for Shasta Lake Area / Northern Shasta County.




Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PCOC1 - 9415144 - Port Chicago, CA 4 mi47 min WSW 11 G 12 60°F 57°F1017.5 hPa
UPBC1 7 mi47 min WNW 8 G 12
MZXC1 - 9415102 - Martinez-Amorco CA 7 mi47 min W 7 G 12 59°F 56°F1017.8 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 7 mi47 min NW 7 G 9.9 61°F 1017.4 hPa
CQUC1 13 mi154 min 55°F
SFXC1 - San Francisco Bay Reserve, CA 14 mi92 min W 5.1 63°F 1018 hPa36°F
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 15 mi47 min WSW 5.1 G 6 58°F 1017.6 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 20 mi47 min S 8 G 9.9 56°F 1018.6 hPa
LNDC1 21 mi47 min WSW 8.9 G 12 55°F 1018.4 hPa
RCMC1 - 9414863 - Richmond, CA 22 mi47 min SSE 6 G 7 56°F 53°F1018.2 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 22 mi47 min W 9.9 G 11
OKXC1 - 9414776 - Oakland (Berth 34), CA 22 mi47 min W 8.9 G 12 55°F 1018.4 hPa
AAMC1 - 9414750 - Alameda, CA 22 mi47 min W 6 G 7 56°F 57°F1018.8 hPa
OBXC1 23 mi47 min 55°F 47°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 25 mi47 min WSW 9.9 G 17 55°F 1017.6 hPa
PXSC1 25 mi47 min 56°F 48°F
TIBC1 - Tiburon Pier, San Francisco Bay, CA 25 mi156 min SE 5.1 54°F 1020 hPa
FTPC1 - 9414290 - San Francisco, CA 28 mi47 min W 8.9 G 18 53°F 55°F1018.7 hPa
RTYC1 - 9414523 - Redwood City, CA 36 mi47 min NW 12 G 17 57°F 59°F1019.1 hPa
46237 - San Francisco Bar, CA (142) 37 mi77 min 53°F6 ft
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 48 mi27 min NW 16 G 21 51°F6 ft1019.5 hPa

Wind History for Port Chicago, CA
(wind in knots)    EDIT      (on/off)   Help
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
Last
24hr
W11
G14
W12
W14
G17
W14
G17
W12
G19
W15
G20
SW11
G15
SW7
G10
SW8
SW4
S4
SW10
SW9
SW6
G11
SW4
G7
S7
G10
SW4
W10
W8
W10
W10
W8
G11
W9
G12
W10
G13
1 day
ago
W12
G17
W9
G14
W10
G13
SW5
G9
S6
S10
G13
S6
G12
W31
G39
W22
G27
SW5
SW14
G19
SW8
G19
S4
G8
W18
G22
SW8
SE4
S4
W11
G14
W12
G15
W13
W11
G14
W10
W7
G10
W8
G11
2 days
ago
W10
W13
W8
SW9
SW9
G12
SW10
SW8
SW8
SW3
SW6
G9
SW6
G9
SW4
SW3
SW3
S4
G7
S5
S4
G8
S3
W4
W7
NW5
W10
W14
G17
W15
G19

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA3 mi24 minWNW 910.00 miFair65°F36°F34%1016.1 hPa
Fairfield / Travis Air Force Base, CA20 mi19 minW 410.00 miFair71°F35°F27%1017.9 hPa
Napa, Napa County Airport, CA21 mi23 minW 9 G 1510.00 miFair64°F45°F50%1016.4 hPa
Livermore, Livermore Municipal Airport, CA23 mi24 minW 710.00 miFair61°F38°F43%1017.3 hPa
Hayward, Hayward Air Terminal, CA24 mi23 minW 1210.00 miFair58°F45°F62%1019.2 hPa
Oakland, Metro Oakland International Airport, CA24 mi24 minWSW 1310.00 miA Few Clouds61°F45°F56%1018.5 hPa

Link to 5 minute data for KCCR

Wind History from CCR (wind in knots)
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
Last 24hrW8W8W10W10W6SW53SW4S4SE5S5SW9S4SW6S3S3S3W8W5W5W7NW8
G14
W9W9
1 day agoW14SW11W8SW5SW14S10S14S11W10
G19
SE7SW3W8SE5CalmSW6E5S4SW9W55W10W9NW95
2 days agoNW10W9W8SW7CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSE3CalmS3S3S3NW6N76W6SW11

Tide / Current Tables for Mallard Island Ferry Wharf, Suisun Bay, California
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Mallard Island Ferry Wharf
Click for Map
Sun -- 02:54 AM PST     Moonrise
Sun -- 03:18 AM PST     1.76 feet Low Tide
Sun -- 06:30 AM PST     Sunrise
Sun -- 09:10 AM PST     4.06 feet High Tide
Sun -- 12:22 PM PST     Moonset
Sun -- 05:27 PM PST     0.02 feet Low Tide
Sun -- 06:07 PM PST     Sunset
Sun -- 11:39 PM PST     3.31 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
2.72.321.81.82.22.83.43.94.143.632.31.610.40.10.10.51.222.73.2

Tide / Current Tables for Stake Point .9 Mi NNW, Suisun Bay, California Current
   EDIT      (on/off)   Help   One Week of Data
Stake Point .9 Mi NNW
Click for Map
Sun -- 01:55 AM PST     -0.33 knots Max Ebb
Sun -- 02:54 AM PST     Moonrise
Sun -- 03:52 AM PST     0.00 knots Slack
Sun -- 06:30 AM PST     Sunrise
Sun -- 07:25 AM PST     0.80 knots Max Flood
Sun -- 10:34 AM PST     -0.00 knots Slack
Sun -- 12:22 PM PST     Moonset
Sun -- 02:47 PM PST     -0.81 knots Max Ebb
Sun -- 06:07 PM PST     Sunset
Sun -- 06:20 PM PST     0.00 knots Slack
Sun -- 10:16 PM PST     0.75 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
-0.1-0.3-0.3-0.200.40.60.80.80.60.2-0.1-0.5-0.7-0.8-0.8-0.7-0.4-0.10.20.40.60.70.7

Weather Map
       (on/off)   Help Weather Map
wmap_P
GEOS Local Image of CentralWestCoast    EDIT
NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
Link to Loop

Other links: GEOS-West     Contential US     Full GOES-East
Ground Weather Radar Station




Please read website Cookie, Privacy, and Disclamers by clicking HERE.