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

Marine Weather and Tides North Richmond, CA Version 3.4

NOTICE 6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

---

Sunrise 5:59AM

Sunset 8:32PM

Wednesday July 17, 2019 9:23 AM PDT (16:23 UTC)

Moonrise 8:23PM

Moonset 5:38AM

Illumination 100%

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 North Richmond, CA

   Hourly   EDIT   Help

---

Area Discussion for - San Francisco/Monterey Bay Area, CA

      (on/off)   Help   NOTE: mouseover dotted underlined text for definition

Fxus66 kmtr 171600 afdmtr area forecast discussion national weather service san francisco bay area 900 am pdt Wed jul 17 2019 Synopsis Slight cooling is forecast for most areas today. More significant cooling is expected on Thursday and Friday, especially inland. Also, night and morning low clouds will become more widespread over the next few days. Temperatures will begin to increase by late in the weekend, but likely remain below seasonal averages through Sunday. Temperatures are then expected to warm to about average, or slightly above average, next week. Discussion As of 08:59 am pdt Wednesday... Stratus which spread inland overnight continues to dissipate this morning with temperatures running in the upper 50s to lower 60s. As mentioned in the previous discussion, the deeper marine layer in place and weak onshore flow should allow for slightly cooler conditions across the region this afternoon. However, mostly sunny conditions are likely region-wide with the coolest conditions near the coast (60s to middle 70s in the warmer locations) with more widespread 80s inland (lower 90s in the warmest interior locations). With this said, no significant changes to the ongoing forecast other than minor adjustments to sky cover based on latest satellite imagery. For additional details, please read the previous forecast discussion below. Prev discussion As of 4:00 am pdt Wednesday... The fort ord profiler indicated a rapid deepening of the marine layer last evening. Based on current satellite imagery, the depth of the marine layer is likely between 1500 and 2000 feet. Low clouds have developed as far inland as the pacheco pass, but inland development farther to the north across the sf bay area has been somewhat limited. This is likely due to the fact that a moderate 4.5 mb pressure gradient remains in place from acv to sfo. The temperature forecast for today is rather tricky. On the one hand, a deeper marine layer should mean much cooler temperatures. But on the other hand, onshore flow remains weak and the models forecast slight warming of the airmass aloft by this afternoon. The most likely outcome will be slightly cooler temperatures in most areas today. The northerly surface gradient is forecast to weaken tonight which should result in more widespread inland development of low clouds by Thursday morning. Meanwhile, an upper trough currently settling into the pacific northwest is forecast to sag slowly south into northern california tomorrow through Friday, resulting in further deepening of the marine layer. In addition, the models develop a low level cyclonic circulation center off the north bay coast by tomorrow afternoon, and then maintain a weak surface low off our coast through the end of the week. The resulting southerly low level flow along our coast will more efficiently transport marine air inland tomorrow and Friday. Thus, more significant cooling is expected over the next two days, particularly in areas that cool more readily during southerly

flow such as the north bay valleys and santa cruz county. Some inland areas may cool by as much as 15 degrees by Friday and low clouds will likely linger into the afternoon hours in some areas. The upper trough to our north is forecast to move to the east by the weekend, which will allow for modest warming by Sunday. Even so, temperatures will likely remain at least slightly cooler than seasonal averages through the upcoming weekend. In the longer range, the GFS and ECMWF agree that an upper ridge will quickly amplify across the west early next week, with the ridge axis aligned from the four corners northward to the northern rockies. Heights will rise as far west as california as this ridge strengthens, but a trough offshore along 140w is expected to prevent the ridge from expanding more strongly over california as had been previously forecast. Thus, the amount of inland warming next week now looks to be rather modest, with temperatures expected to warm only slightly above seasonal averages. Aviation As of 4:45 am pdt Wednesday... Ft ord profiler shows the marine layer is becoming less defined. This is in response to an upper trough moving through the area cooling the airmass aloft. There is also a low level cyclonic circulation at 925 mb over the area which is bringing in a drier northerly flow. Stratus which came in earlier is now starting to retreat in response to this drier flow. Thus we should seeVFR conditions for sfo and the approach today with just some early morning scattered clouds near the airport. Stratus is more organized in the mry bay area and there could be some morning drizzle as well. Vicinity of ksfo...VFR expected today. Could see a light north to northeast wind this morning up to 6 kt. West winds gusting up to 25 kt after 22z. Sfo bridge approach... Similar to ksfo. Monterey bay terminals... Ifr CIGS with patchy drizzle through 17z. Becoming MVFR until 19z. Marine As of 08:59 am pdt Wednesday... Moderate northwest winds across the waters north of point reyes through tomorrow, with lighter northwest winds elsewhere. Wind driven northwest seas will be locally steep and hazardous to small craft vessels. Light long period southerly swell will continue to be the dominant swell group through at least Thursday. Mtr watches warnings advisories Tngt Sca... Pt arena to pigeon pt 10-60 nm sca... Pt arena to pt reyes 0-10 nm until 3 am sca... Pigeon pt to pt piedras blancas 10-60 nm until 9 pm public forecast: rgass dykema aviation: W pi marine: drp visit us at

---

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
RCMC1 - 9414863 - Richmond, CA	5 mi	53 min	S 4.1 G 8		63°F		1012.7 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA	7 mi	53 min	SW 6 G 8.9	59°F			1013.2 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA	8 mi	53 min	W 5.1 G 8.9	61°F			1012.4 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA	8 mi	42 min	SE 6	60°F			1013 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA	14 mi	53 min	E 5.1 G 6	60°F			1011.9 hPa
FTPC1 - 9414290 - San Francisco, CA	14 mi	53 min	W 5.1 G 8.9	58°F	61°F		1013.4 hPa
OBXC1	14 mi	53 min		60°F				58°F
OKXC1 - 9414776 - Oakland (Berth 34), CA	14 mi	53 min	S 2.9 G 5.1	61°F			1013 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA	14 mi	53 min	S 1.9 G 5.1
UPBC1	15 mi	53 min	NW 8 G 8.9
MZXC1 - 9415102 - Martinez-Amorco CA	15 mi	53 min	WNW 8 G 8.9	62°F	69°F		1012.5 hPa
LNDC1	16 mi	53 min	SE 4.1 G 5.1	62°F			1012.8 hPa
AAMC1 - 9414750 - Alameda, CA	17 mi	53 min	SW 1.9 G 2.9				1013.4 hPa
46237 - San Francisco Bar, CA (142)	19 mi	53 min			57°F	5 ft
PCOC1 - 9415144 - Port Chicago, CA	20 mi	53 min	W 8.9 G 12	62°F	69°F		1012.5 hPa
SFXC1 - San Francisco Bay Reserve, CA	24 mi	98 min	WNW 9.9	60°F			1012 hPa	57°F
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA	27 mi	53 min	NW 6 G 8	66°F			1011.9 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA	29 mi	33 min	S 1.9 G 3.9	54°F	53°F	6 ft	1013.6 hPa
PRYC1 - 9415020 - Point Reyes, CA	31 mi	53 min			52°F		1013 hPa
RTYC1 - 9414523 - Redwood City, CA	35 mi	53 min	E 1.9 G 2.9	63°F	73°F		1013.4 hPa

Wind History for Richmond, CA

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

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

12 AM

1 AM

2 AM

3 AM

4 AM

5 AM

6 AM

7 AM

8 AM

9 AM

Last 24hr

S9 G13

S9 G13

S9 G15

S10 G15

S7 G11

SE1 G5

SE4

W6 G17

SW3 G6

W11 G16

SE4

SE4

SE3 G7

SE11 G17

S13 G18

S12 G16

S12 G15

S8 G13

S6 G9

S7 G11

S7 G12

S7 G11

S5 G8

S6

1 day ago

SE9 G14

SE7 G11

SE3 G7

S6 G9

SE4

S4 G7

S5

S7

S3 G8

S9

S6 G9

S4

S5

SE8 G15

SE8 G14

SE8 G13

SE10 G15

SE8 G13

SE9 G15

S10 G17

SE12 G16

S11 G14

S10 G13

SE5 G8

2 days ago

S11

S9 G13

S11 G15

S8 G12

S8 G11

S9 G12

S9

S9 G12

SE7

S4 G7

S4

SE7 G11

SE9 G14

S10 G14

S6 G9

S4 G9

SE5

S9 G12

S6

SE8

S6

SE5 G10

S10

S8 G11

---

Airport Reports

    EDIT      (on/off)   Help   Click EDIT to display multiple airports

Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Novato / Gnoss Field, CA	13 mi	48 min	N 0	10.00 mi	Fair	63°F	55°F	77%	1013.2 hPa
Napa, Napa County Airport, CA	16 mi	29 min	N 0	10.00 mi	Partly Cloudy	62°F	55°F	80%	1012.1 hPa
Concord, Buchanan Field, CA	19 mi	30 min	S 5	10.00 mi	Fair	68°F	54°F	61%	1011.1 hPa
Petaluma Municipal Airport, CA	21 mi	28 min	Var 3	9.00 mi	Fair	64°F	57°F	78%	1013.2 hPa
Oakland, Metro Oakland International Airport, CA	23 mi	30 min	SSE 8	10.00 mi	A Few Clouds	65°F	54°F	68%	1013 hPa

Wind History from DVO (wind in knots)

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

12 AM

1 AM

2 AM

3 AM

4 AM

5 AM

6 AM

7 AM

8 AM

9 AM

Last 24hr

Calm

4

4

SE9

SW12 G19

SW19 G24

W19 G29

W22 G29

W21 G29

W18 G32

S13

SW7 G14

SE4

E4

Calm

Calm

Calm

Calm

Calm

Calm

Calm

Calm

Calm

Calm

1 day ago

Calm

3

N5 G11

W10

SW16 G22

S12 G19

SW11 G17

S8

5 G12

S8 G15

S12

S7 G13

Calm

4

Calm

Calm

NE5

NE4

Calm

NW4

Calm

Calm

N4

Calm

2 days ago

Calm

E4

E6

4 G13

SE7

E6 G11

SW9

S9

S9

S8

S13

SE5

NE3

SE7

Calm

Calm

Calm

Calm

NE5

E4

Calm

NW3

Calm

Calm

---

Tide / Current Tables for Pinole Point, San Pablo Bay, California

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

---

Tide / Current Tables for Pinole Point 1.2 mi W, San Pablo Bay, California Current

   EDIT      (on/off)   Help   One Week of Data

---

Weather Map and Satellite Images

       (on/off)   HelpWeather Map

GOES 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 San Francisco/Monterey Bay Area, CA (12,3,4,5)

      (on/off)   Help

---

Ground Weather Radar Station Sacramento, CA

   (on/off)   Help

---

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 numerious 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.