Tuesday, October22, 2019 L-36.com


Marine Weather and Tides
Geyserville, CA

Version 3.4
NOTICE
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.
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 7:26AMSunset 6:25PM Tuesday October 22, 2019 4:31 PM PDT (23:31 UTC) Moonrise 12:00AMMoonset 2:32PM Illumination 31% 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
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PZZ540 Coastal Waters From Point Arena To Point Reyes California Out To 10 Nm- 243 Pm Pdt Tue Oct 22 2019
.small craft advisory in effect through Wednesday afternoon...
Tonight..NW winds 15 to 25 kt with gusts up to 30 kt. Wind waves 3 to 4 ft, increasing to 5 to 6 ft after midnight. NW swell 6 to 8 ft at 11 seconds. SWell sw around 2 ft.
Wed..NW winds 15 to 25 kt with gusts up to 30 kt. Wind waves 6 to 7 ft. NW swell 7 to 9 ft at 11 seconds and S around 2 ft at 15 seconds.
Wed night..N winds 5 to 15 kt. Wind waves 3 to 4 ft. NW swell 6 to 8 ft at 11 seconds and S around 2 ft at 14 seconds.
Thu..NE winds 5 to 10 kt. Wind waves 1 to 2 ft. NW swell 5 to 7 ft at 10 seconds and S around 2 ft at 14 seconds.
Thu night..NE winds up to 10 kt. Wind waves 1 ft. NW swell 3 to 5 ft at 9 seconds and S around 2 ft at 14 seconds.
Fri..NW winds up to 10 kt. Wind waves 1 to 2 ft. Mixed swell nw 2 to 4 ft at 9 seconds and S around 2 ft at 14 seconds.
Fri night..NW winds 5 to 10 kt. Wind waves 1 ft. NW swell 3 to 5 ft at 11 seconds and S around 2 ft at 14 seconds.
Sat..NW winds 5 to 15 kt. Wind waves 1 to 2 ft. NW swell 6 to 8 ft and S around 2 ft.
Sun..N winds up to 10 kt. Wind waves 1 ft. NW swell 6 to 8 ft and S around 2 ft.
PZZ500 243 Pm Pdt Tue Oct 22 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... High pressure over the eastern pacific and pacific northwest will produce moderate northerly winds across the coastal waters through midweek. The strongest winds are expected across the northern outer waters. As high pressure builds over the great basin, a thermal trough will develop along the coast. This will result in light offshore flow across the coastal waters. A moderate northwest swell will continue through midweek.


7 Day Forecast for Marine Location Near Geyserville CDP, CA
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location: 38.71, -123     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 222241
afdsto
area forecast discussion
national weather service sacramento ca
341 pm pdt Tue oct 22 2019

Synopsis
Strong winds Wednesday into Thursday when elevated fire weather
concerns are expected. Dry conditions with above average
temperatures forecast through the remainder of the week.

Discussion
Warm and dry conditions continue today and through the rest of the
week as an upper level ridge remains centered over the eastern
pacific. Daytime temperatures will reach the mid to upper 80s for
the valley and 50s to 60s for the mountains this week, around 10
to 15 degrees above normal for late october. Overnight lows will
be mild across windier portions of the valley and in the foothills
thermal belts, but will be close to normal elsewhere.

The main concern this week is critical fire weather conditions
tomorrow and Thursday as an upper level shortwave digs into the
great basin region. Today, north to northeast pressure gradients
have tightened slightly resulting in gusts around 15-25 mph range
across the northern sacramento valley. Pressure gradients will
continue to tighten tomorrow as the shortwave deepens to the east
and the ridge deepens to the west. Strongest winds will begin in
the valley and northern foothills tomorrow morning, becoming
strong over the northern mountains Wednesday night. Sustained
winds 15 to 30 mph are possible with gusts 35 to 45 mph, locally
higher over more wind prone areas. A wind advisory has been issued
for the northern sacramento valley Wednesday morning through
evening. Gusty winds will continue through Thursday.

Extremely dry conditions will persist through Friday. Daytime
humidity levels will be in the teens to 20s with extremely poor
overnight recoveries Wednesday night only reaching the teens to
30 percent. The above normal temperatures and northerly winds will
enhance the drying. Fuels in the sacramento valley also continue
to dry, all of which combined create a critical fire weather
situation, resulting in a red flag warning. Those who live in the
area of concern should be preparing now for critical fire weather
conditions.

Lighter winds forecast to return later evening Thursday and
continue Friday as the shortwave moves east and the upper ridge
moves over california. Hec

Extended discussion (Saturday through Tuesday)
Models are in good agreement an upper level trough originating over
western canada will drop into the northern great basin on
Saturday. Impacts on Saturday will be minimal with daytime highs
likely to still be several degrees above normal. Northerly flow
will help to cool down the area starting Sunday.

On Sunday, the GFS and ECMWF model projections could not be more
different. The ECMWF is now digging the upper trough further
southwest with even tighter gradients with the center of low
pressure tracking south over nevada. Meanwhile, the GFS broadens
the trough and tracks it much farther east into the central u.S.

During the exact same timeframe. The impact of these model
projections would be dramatically different. If the GFS ultimately
verifies, we would likely see minimal impact to our area.

However, if the ECMWF solution ends up verifying, we will see
another round of strong northerly to northeasterly winds over
most of the CWA with the potential for enhanced fire weather
concerns. Models do agree on cooler temperatures early next week
with much of norcal forecast to come in a few degrees below
average for this time of year. High pressure is expected to build
in over our area early next week.

Aviation
Vfr conditions the next 24 hours at TAF sites. Generally
northerly sustained winds 5 to 15 knots, increasing after 12z
to 10 to 20 kts with gusts up to 35 kts for sacramento valley and
mountains.

Sto watches warnings advisories
Red flag warning from 8 am Wednesday to 4 pm pdt Thursday for
carquinez strait and delta-central sacramento valley in glenn,
colusa, yuba, northern sutter, and butte county below 1000 ft-
eastern mendocino nf-eastern portion of shasta trinity nf-lake
county portion of lake-napa-sonoma unit-northern motherlode from
1000 to 3000 ft. Includes portions of nevada-yuba-placer-amador
and eldorado units-northern sacramento valley to southern tehama
county line below 1000 ft-northern san joaquin valley in san
joaquin and stanislaus counties below 1000 ft-northern sierra
foothills from 1000 to 3000 ft. Includes portions of shasta-
trinity and butte units-northern sierra including lassen np and
plumas and lassen nf S west of the sierra crest (west of evans
peak-grizzly peak-beckworth peak)-northern sierra including the
tahoe and eldorado nf S west of the sierra crest-southeast edge
shasta-trinity nf and western portions of tehama-glenn unit-
southern sacramento valley in yolo-sacramento far western
placer, southern sutter and solano county below 1000 ft-
stanislaus nf west of the sierra crest.

Wind advisory from 11 am to 8 pm pdt Wednesday for central
sacramento valley-northern sacramento valley.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46013 - Bodega Bay - 48NM North Northwest of San Francisco, CA 36 mi21 min NW 12 G 18 54°F1019.4 hPa
ANVC1 - 9416841 - Arena Cove, CA 40 mi49 min WNW 5.1 G 9.9 64°F 53°F1020.9 hPa
PRYC1 - 9415020 - Point Reyes, CA 49 mi49 min 54°F1019.4 hPa

Wind History for Arena Cove, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Santa Rosa, Santa Rosa Sonoma County Airport, CA17 mi38 minVar 410.00 miPartly Cloudy90°F44°F20%1017.5 hPa

Link to 5 minute data for KSTS

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Last 24hrNW5W3NW5N8CalmN8CalmN3N7NW6NW5CalmW3W6S3CalmCalmNW3NW5N4NW4N434
1 day agoN8NW5SE6S4S5CalmCalmW3NW3W3CalmW5CalmCalmCalmNW5CalmN6N10N8N85NW5NW6
2 days agoCalmS3S3SE3CalmCalmCalmSW3CalmCalmW3CalmNW3CalmNW3N3CalmCalm345NE8NW9NW7

Tide / Current Tables for Fort Ross, California
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Fort Ross
Click for Map
Tue -- 12:09 AM PDT     0.08 feet Low Tide
Tue -- 12:51 AM PDT     Moonrise
Tue -- 07:27 AM PDT     4.63 feet High Tide
Tue -- 07:29 AM PDT     Sunrise
Tue -- 12:47 PM PDT     2.78 feet Low Tide
Tue -- 03:32 PM PDT     Moonset
Tue -- 06:06 PM PDT     5.05 feet High Tide
Tue -- 06:25 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.10.20.81.62.53.44.24.64.64.33.73.22.92.833.64.24.854.94.33.32.21.1

Tide / Current Tables for Salt Point, California Current
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Salt Point
Click for Map
Tue -- 12:51 AM PDT     Moonrise
Tue -- 01:39 AM PDT     0.00 knots Slack
Tue -- 04:47 AM PDT     0.94 knots Max Flood
Tue -- 07:29 AM PDT     Sunrise
Tue -- 08:18 AM PDT     -0.00 knots Slack
Tue -- 10:31 AM PDT     -0.63 knots Max Ebb
Tue -- 02:05 PM PDT     0.00 knots Slack
Tue -- 03:33 PM PDT     Moonset
Tue -- 04:42 PM PDT     0.59 knots Max Flood
Tue -- 06:25 PM PDT     Sunset
Tue -- 07:26 PM PDT     -0.00 knots Slack
Tue -- 10:43 PM PDT     -1.20 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.6-0.30.20.60.90.90.80.60.1-0.3-0.6-0.6-0.5-0.3-00.30.50.60.40.2-0.2-0.7-1.1-1.2

Weather Map
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wmap_P
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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Sacramento, CA (19,4,5,8)
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Ground Weather Radar Station Sacramento, CA
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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.