Page Links Change Location One Page Printer Page HELP AIS Default setup SAVE setting RECALL saved setting

Marine Weather and Tides American Canyon, CA Version 3.4

NOTICE 12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed. 10/9/2019 Updated the Marine Zones. 9/4/2019 Fixed the weather maps due to NOAA moving them. 7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

---

Sunrise 7:19AM

Sunset 5:21PM

Wednesday January 22, 2020 3:22 PM PST (23:22 UTC)

Moonrise 5:43AM

Moonset 3:26PM

Illumination 5%

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.

---

---

7 Day Forecast for Marine Location Near American Canyon, CA

   Hourly   EDIT   Help

---

Area Discussion for - Sacramento, CA

      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS66 KSTO 222250 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 250 PM PST Wed Jan 22 2020

Synopsis. Look for dense fog to develop late tonight into Thursday morning. A low impact weather system is expected to move into Norcal during the day on Thursday into Friday. A wetter weather system is forecast for the weekend.

Discussion. Ern Pac ridge axis along the W Coast will be moving across the CWA tonight and across the Great Basin on Thu. The cross mountain flow over the coastal range mtns has induced some downslope clearing on the Wrn side of the CWA while low level moisture remained trapped below the low level/subsidence inversion causing low clouds to linger on the E side of the Valley into the Sierra foothills. Moisture profiles suggest clearing over most of the area this evening before low clouds and fog are likely to reform overnite. After midnight, the HREF increases the probabilities of LIFR wx (stratus/fog) from OVE southward into the SJV, and by morning some patchy F+ (dense fog) is likely.

An upper trof, preceded by a cold front over the Ern Pac, is forecast to move into/across the Pac NW, brushing Norcal, Thu nite into Fri. For Norcal, this will be a weak system with minimal QPF, high snow levels and no significant impacts. QPF is expected to range from less than a tenth of an inch in the Valley to as much as a quarter to a third of an inch in the Nrn mtns. Snow levels at/above 7 kft at the onset when most of the precip will fall are expected to lower to 5.5 in the north to 7 kft in the south at the end of the event when precip is diminishing Fri afternoon and evening.

A wetter system is forecast to move into Norcal this weekend, beginning late Fri nite. The details concerning this system are discussed below. JHM

EXTENDED DISCUSSION (Saturday THROUGH Wednesday).

A somewhat subtle shortwave over the eastern Pacific will bring an extended period of wet weather this weekend. While the wave itself does not reach the coast until Saturday night, warm advection precipitation will be ongoing, particularly north of I-80, during the daytime. Given the warm nature of this system, snow levels are likely to be quite high at the onset, generally around 8,000 feet. Unlike the preceding storms, there should decent access to moisture with precipitable water values of 0.75 to 1.00 inch. A vast majority of the GEFS members favor a weak Atmospheric River event which is consistent with pattern recognition.

The leading edge of the upper trough/height falls arrive late Saturday/early Sunday bringing a band of moderate precipitation through the region. Some trailing instability showers are possible during the remainder of Sunday with coverage and intensity dependent on the timing of the frontal passage. Expecting anywhere from 0.25 to 0.50 inches of rainfall over the Delta and Valley, although closer to an inch in the northern Sacramento Valley. The usual upslope orographics will augment numbers in the foothills and mountains with 1 to 2 inches likely in these locations. While snow levels begin high, they will drop to mountain pass level by Sunday morning with mountain travel delays possible. 4 to 8 inches of snow is being forecast at 7,000 feet and above over the Sierra-Cascade range, higher over mountain summits. By Sunday evening into the following morning, snow levels drop to around 5,000 to 6,000 feet with lingering showers remaining in the picture.

Looking to next week, broad ridging extends over the region while the storm track shifts up to the Pacific Northwest. Models continue to advertise some light warm advection precipitation at times, mainly up toward the northern mountains. Given the ridge in place, do not anticipate any significant impacts aside from scattered showers and additional cloud cover over these regions. Overall high temperatures stay close to climatology with mid to upper 50s in the Valley and Delta, 40s in the upper foothills, and 30s into the higher elevation mountains. ~BRO

AVIATION.

Local MVFR/IFR conditions over Norcal expected to improve to VFR this evening, before IFR/LIFR conditions increase in the Valley from OVE-MOD due to F/F+ after 06z-08z. Conditions improve Thu afternoon as chance of R- spreads over the area mainly N of the I-80 corridor Thu afternoon/night. Winds mostly light.

STO WATCHES/WARNINGS/ADVISORIES. None.

---

Weather Reporting Stations

   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map

Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA	11 mi	59 min		53°F			1023.7 hPa
UPBC1	15 mi	65 min	ENE 4.1 G 5.1
MZXC1 - 9415102 - Martinez-Amorco CA	15 mi	53 min		57°F	51°F		1023.7 hPa
SFXC1 - San Francisco Bay Reserve, CA	15 mi	98 min	E 4.1
PCOC1 - 9415144 - Port Chicago, CA	17 mi	53 min		57°F	50°F		1023.5 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA	21 mi	59 min		60°F			1024.1 hPa
RCMC1 - 9414863 - Richmond, CA	21 mi	53 min			53°F		1023.4 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA	23 mi	42 min	Calm	58°F			1024 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA	25 mi	53 min		60°F			1023.6 hPa
OBXC1	28 mi	53 min		56°F				51°F
OKXC1 - 9414776 - Oakland (Berth 34), CA	28 mi	53 min		53°F			1023.8 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA	28 mi	71 min	NNW 7 G 8
LNDC1	29 mi	53 min		57°F			1023.6 hPa
FTPC1 - 9414290 - San Francisco, CA	29 mi	53 min			54°F		1023.9 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA	29 mi	59 min		54°F			1022.8 hPa
PXSC1	29 mi	59 min		54°F				54°F
AAMC1 - 9414750 - Alameda, CA	30 mi	53 min			52°F		1023.7 hPa
46237 - San Francisco Bar, CA (142)	34 mi	53 min			53°F	9 ft
PRYC1 - 9415020 - Point Reyes, CA	39 mi	53 min			53°F		1023.6 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA	43 mi	33 min	NW 3.9 G 7.8	54°F	55°F	9 ft	1024.5 hPa
RTYC1 - 9414523 - Redwood City, CA	49 mi	53 min		59°F	53°F		1023.8 hPa

Wind History for Union Pacific Rail Road Bridge (UPRR), CA

(wind in knots)    EDIT      (on/off)   Help

4 PM

5 PM

-12 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

S8 G14

S10 G13

SW5 G9

SW3 G10

W6

SW7 G10

W4

N1

E3

W4

N1

NW3

E2

NW3

SW2

NW5

NW5

NW5

NW3

NW1

NE4

E4

E5

1 day ago

NE3

SE2

E1

N2

NE2

NW1

NW1

W3

S4

W1

SE6 G11

SE2 G5

NE1

NE5 G8

NE4 G7

SE1

S10 G14

S5 G13

S8 G11

S10 G15

2 days ago

E12 G16

E14 G17

E13

E8

E8

E7

E10

E9

E12

NE11

E9

E8 G11

NE7

NE5

E4

E4

E4

E7

E4

E2

E5

E4

E4

---

Airport Reports

    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.

Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Napa, Napa County Airport, CA	1 mi	29 min	WSW 4	10.00 mi	Fair	59°F	44°F	58%	1022.8 hPa
Novato / Gnoss Field, CA	14 mi	28 min	N 0	10.00 mi	Fair	61°F	39°F	45%	1023.7 hPa
Petaluma Municipal Airport, CA	17 mi	48 min	N 0	10.00 mi	A Few Clouds	61°F	46°F	59%	1024 hPa
Fairfield / Travis Air Force Base, CA	20 mi	85 min	NE 6	10.00 mi	Fair	64°F	45°F	51%	1024 hPa
Concord, Buchanan Field, CA	21 mi	30 min	N 6	10.00 mi	Fair	63°F	48°F	60%	1022.2 hPa
Vacaville Nut Tree Airport, CA	22 mi	30 min	N 6	10.00 mi	Fair	62°F	45°F	54%	1024.2 hPa

Link to 5 minute data for KAPC

Wind History from APC (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 24hr

S10

S9

S6

SW5

S5

S3

S6

SW4

SW5

Calm

Calm

Calm

Calm

N3

N3

NE3

N5

N6

N6

N4

4

SW4

SW6

SW4

1 day ago

Calm

Calm

E3

Calm

Calm

Calm

Calm

E3

Calm

NE3

E3

NE3

E4

SE6

Calm

E3

E3

Calm

Calm

Calm

S9

S8

S10

S8

2 days ago

E16 G21

E16 G22

SE14 G20

E15 G22

E11

E9

E12 G19

E12

E13 G23

SE8

E5

E8

E5

NE6

SE3

E7

E6

NE9

E10

E8

E5

E5

SW4

SW3

---

Tide / Current Tables for Brazos Drawbridge, Napa River, Carquinez Strait, California

   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data

---

Tide / Current Tables for Mare Island Strait, So Vallejo, San Pablo Bay, California Current

   EDIT      (on/off)   Help   One Week of Data

---

Weather Map

       (on/off)   Help Weather Map

---

GEOS Local Image of CentralWestCoast    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East

---

Wind Forecast for Sacramento, CA (18,4,5,8)

      (on/off)   Help

---

Ground Weather Radar Station Sacramento, CA

   (on/off)   Help

---

Cookie Policy: This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser. Privacy Policy: I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway. Disclaimer: The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.