Friday, March24, 2017 L-36.com


Marine Weather and Tides
Pajaro Dunes, CA

Version 3.4
What's New / NOTES
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 7:02AMSunset 7:25PM Friday March 24, 2017 1:06 AM PDT (08:06 UTC) Moonrise 4:03AMMoonset 3:01PM Illumination 11% Phase: Waning Crescent; Moon at 26 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
PZZ535 Monterey Bay- 849 Pm Pdt Thu Mar 23 2017
.small craft advisory in effect from 3 pm pdt Friday through Friday evening...
Tonight..W winds 5 kt...becoming southeast after midnight. Wind waves 2 ft or less. W swell 4 to 6 ft at 13 seconds. Slight chance of rain after midnight.
Fri..SE winds 5 to 15 kt...increasing to 15 to 25 kt in the afternoon. Wind waves 3 to 5 ft. W swell 6 to 8 ft at 14 seconds. Chance of rain in the morning, then rain in the afternoon.
Fri night..SW winds 15 to 25 kt...becoming northwest 10 kt after midnight. Wind waves 3 to 5 ft in the evening...becoming 2 ft or less. W swell 7 to 8 ft at 12 seconds. Rain in the evening, then slight chance of showers after midnight.
Sat..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. W swell 4 to 6 ft at 15 seconds.
Sat night..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. W swell 6 to 8 ft at 14 seconds.
Sun..SW winds 10 kt. Wind waves 2 ft or less. W swell 4 to 6 ft. Chance of showers, then showers likely.
Mon..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. W swell 6 to 8 ft. Chance of showers.
Tue..NW winds 5 to 15 kt. Wind waves 1 to 3 ft...becoming 3 ft. W swell 7 to 9 ft.
PZZ500 849 Pm Pdt Thu Mar 23 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Occasional gale force gusts are possible late tonight and into tomorrow as a storm system impacts the region with strong southerly winds. Rough seas possible just ahead of and behind the frontal passage, but should begin to decrease by Saturday. Expect northwest winds to return by Saturday as well before briefly becoming southerly on Sunday as another weak system moves over the waters.

7 Day Forecast for Marine Location Near Pajaro Dunes, CA
   Hourly   EDIT   Help
location: 36.81, -121.96     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 kmtr 240543
afdmtr
area forecast discussion
national weather service san francisco bay area
1043 pm pdt Thu mar 23 2017

Rain and gusty southerly winds return on Friday...

Synopsis Rain and moderate southerly winds return to the north
bay overnight as a frontal system approaches. Rain and wind will
spread southward Friday as the front moves across the region. A
break in the rain is expected Saturday with showers anticipated to
return Sunday afternoon and night as a low pressure system moves
through the region.

Discussion As of 9:03 pm pdt Thursday... Radar starting to
slowly fill in with a few bucket tips just starting to show up in
northern sonoma county. Rain event is on track with 00z models
keeping similar timing with rain gradually increasing over the
north bay tonight reaching the greater bay area for Friday morning
commute. Looking at satellite IR imagery there are cooling cloud
tops well offshore and would expect to see some baroclinic leaf
structure development as trough digs and jet streak passes over
the region. Amsu/ssmi blended satellite scans show that the
moisture plume has tpw values from 2.0-2.3 inches, well in excess
of 200% of normal for late march. This depth of moisture with a
potentially slow moving front does raise concerns.

As the front moves southward through midday the models have been
consistent in developing a wave with an associated surface low
just west of half of moon bay. As this occurs the band of rain
will likely slow with latest projections showing the santa cruz
mountains once again taking the brunt of the rainfall with the
santa lucia range above big sur taking a close second. Heavy rain
rates will once again inundate small streams and any compromised
hill sides will once again be tested due to short term heavy rain
rates. The one bit of good news is of course we've had a little
bit of dry weather since the rain earlier this week and the main
stem rivers are running low. The Friday afternoon commute will be
a mess as well from san francisco southward to the central coast
with winter storm warnings up in the sierra as well so make your
weekend travel plans accordingly. In addition to the rainfall,
winds will once again be problematic ahead of the front with gusty
southerly winds from 35 to 45 mph in many coastal and hillside
locations. It appears that many trees are still stressed from the
long term drought and now saturated soils so more downed limbs,
trees and power lines seem likely.

Precip will turn showery by Friday night and end in the pre-dawn
hours of Saturday. Saturday looks dry but seasonably cool.

Rain chances return, and look likely by Sunday afternoon for the
bay area and north bay as another cold upper trough passes across
the state. This system wont have near the moisture tap but any
showers will bring moderate to heavy downpours with numerous hail
reports likely and snow levels down to around 4000 feet by the
tail end. Rain totals for the Sunday afternoon/night system look
to be around 0.25-0.50 with local amounts 0.75 inches. All rain
looks to be east of the area by Monday morning.

Beyond that much of next week now looking dry.

Prev discussion As of 1:40 pm pdt Thursday... After an active
weather day yesterday, today -- as expected -- has been tranquil
with just scattered clouds. Temperatures have been running close
to values from Tuesday with most spots in the upper 50s to the
lower 60s. Hard to believe in less than 24 hours we will be
dealing with another round of active weather.

Synoptically a cold front associated with a 988 mb low heading
toward british columbia will move through our region on Friday.

Models have shown very little variation from previous runs, so the
forecast was changed very little during the shift. Rain will move
north-to-south starting overnight in the north bay then down to
the sf bay area early in the morning and to monterey bay region
close to noon. Rain rates will pick up with the approaching front
and could be moderate to heavy at times. Current timing brings the
main band through sf bay late in the morning or early in the
afternoon. In fact, if the current NAM verifies the bulk of the
rain will fall after morning rush and before the afternoon
commute. Along with the rain southerly winds will increase with
many spots forecast to see gusts of 25 to 35 mph. Winds for higher
elevation locations will be stronger -- gusts over 45 mph are
likely.

Rainfall totals still look like 1.5" to 3" for the north bay with
2/3" to 1.5" around sf bay with generally less than 2/3" for
points to the south. All of the coastal ranges are expected to be
in the 2-4" range with a few local spots possibly seeing slightly
higher amounts.

Rain will switch to showers behind the front with light
precipitation possible through Friday night. However, by mid-day
Saturday all of the rain should be well to our south and east.

Similar to today's time period, that break will be short as
another system moves across on Sunday. This one should be quite a
bit weaker and will have less moisture to utilize. In general
amounts will be around half of what we get out of the first round.

Rain will switch over to showers going into Monday.

A ridge of high pressure will build back to our region starting
next Tuesday, although a system will dive down from the north late
Wednesday/early Thursday possibly bringing a few light showers.

However, after it departs a more pronounced pattern change will
take place as a stronger ridge of high pressure returns to our
region. This should give us dry conditions with warmer
temperatures toward the end of next week possibly through the
following week.

Aviation As of 10:40 pm pdt Thursday... For 06z tafs.VFR
conditions are expected to persist the next several hours across
the bay area through about 10 to 14z before showers associated
with an approaching front push onshore. Rain is expected to reach
the san francisco bay area terminals by Thursday morning with a
steady rain mid/late morning that will continue into the afternoon
and evening hours. Expect ceilings to become MVFR as the rain
reaches the terminals. Medium confidence on timing of the rain.

Winds are becoming southerly tonight and can expect breezy conditions
by mid morning at many locations. Gusts are likely to exceed 20
to 25 kt by 18z. High confidence on wind direction, medium
confidence on the timing and gust magnitude.

Vicinity of ksfo...VFR through about 9 to 10z, and then
transitioning to MVFR ceilings and with rain by Friday morning.

Southerly winds will increase by morning with gusts exceeding 20
kt by 18z and continuing into the afternoon and evening.

Sfo bridge approach... Same as ksfo.

Monterey bay terminals...VFR overnight with generally light winds.

Rain showers are expected to begin impacting after 18z with MVFR
ceilings and increasing southerly winds.

Marine As of 10:25 pm pdt Thursday... Occasional gale force
gusts are possible late tonight and into tomorrow as a storm
system impacts the region with strong southerly winds. Rough seas
possible just ahead of and behind the frontal passage, but should
begin to decrease by Saturday. Expect northwest winds to return
by Saturday as well before briefly becoming southerly on Sunday
as another weak system moves over the waters.

Mtr watches/warnings/advisories
Tngt Sca... Pigeon pt to pt pinos 0-10 nm from 5 am
sca... Pt pinos to pt piedras blancas 0-10 nm from 5 am
sca... Pt arena to pigeon pt 10-60 nm
sca... Pt reyes to pigeon pt 0-10 nm
sca... Pigeon pt to pt piedras blancas 10-60 nm
sca... Pt arena to pt reyes 0-10 nm
sca... Sf bay from 5 am
public forecast: rww
aviation: rowe
marine: rowe
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 TempWater Temp WavesPressureDewPt
46092 - MBM1 6 mi57 min ESE 5.8 54°F 56°F1023 hPa (+0.0)
46240 - Cabrillo Point, Monterey Bay, CA (158) 13 mi45 min 57°F3 ft
MEYC1 15 mi90 min ESE 5.1 G 5.1 50°F 57°F1024.3 hPa
46114 - West Monterey Bay, CA 22 mi36 min 56°F6 ft
46042 - MONTEREY - 27NM West of Monterey Bay, CA 26 mi76 min 7.8 G 9.7 56°F 57°F6 ft1023.5 hPa (+0.0)
46239 - Point Sur, CA (157) 33 mi44 min 56°F6 ft

Wind History for Monterey, CA
(wind in knots)    EDIT      (on/off)   Help
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
12
AM
Last
24hr
W11
G14
W18
G23
W14
G18
W13
G17
W13
W8
G13
W8
G12
NW9
NW9
NW8
NW5
NW6
NW10
NW9
W9
G12
SW6
G14
SW7
G14
SW7
G12
W4
S2
SE3
SE3
SE4
SE3
1 day
ago
SE2
SE7
G10
SE10
G15
S11
G17
S10
G13
SW8
G15
SE5
SE4
SE4
W4
W10
G13
W10
G14
W11
G16
W10
G14
W11
G16
W13
G17
W16
G20
W12
G17
W12
G17
W11
G14
W12
G16
W13
G18
W11
G16
W12
G15
2 days
ago
SE7
SE2
G5
SE5
G8
S11
G20
S12
G18
S11
G18
S11
G17
S5
G13
S11
G16
S7
G14
S8
G15
S15
G20
S13
G17
S9
G15
S9
G14
S4
S6
SE4
E4
SE4

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Watsonville, Watsonville Municipal Airport, CA13 mi73 minNW 310.00 miOvercast49°F46°F93%1024.5 hPa
Monterey, Monterey Peninsula Airport, CA16 mi72 minE 710.00 miOvercast49°F44°F83%1025.4 hPa
Salinas, Salinas Municipal Airport, CA21 mi73 minN 010.00 miFair48°F45°F89%1025.1 hPa

Wind History from WVI (wind in knots)
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
12
AM
Last 24hrN3NW3CalmNW3CalmW4NW3NW3CalmCalmCalmSW5S7SW8SW8S10W7SW11SW3CalmCalmCalmCalmNW3
1 day agoE5SW3NW3SE4NE3N3NW4SW3SE3Calm36SW9SW10SW13
G20
SW16
G21
W10
G16
W11
G16
W12
G19
W8
G17
W6SW7CalmW5
2 days agoSE3CalmS4CalmCalmCalmSE3SE8S6S19
G25
S8SW7SW9SW8SW10S10SW10
G18
S12S10S8S9S7S5Calm

Tide / Current Tables for General Fish Company Pier, Moss Landing, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
General Fish Company Pier
Click for Map
Fri -- 02:29 AM PDT     2.15 feet Low Tide
Fri -- 05:02 AM PDT     Moonrise
Fri -- 07:04 AM PDT     Sunrise
Fri -- 08:26 AM PDT     5.02 feet High Tide
Fri -- 03:18 PM PDT     0.16 feet Low Tide
Fri -- 04:00 PM PDT     Moonset
Fri -- 07:22 PM PDT     Sunset
Fri -- 09:45 PM PDT     4.32 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
32.52.22.22.63.23.94.654.94.53.62.51.40.60.20.30.81.72.73.64.24.34

Tide / Current Tables for Point Pinos, California Current
   EDIT      (on/off)   Help   One Week of Data
Point Pinos
Click for Map
Fri -- 01:16 AM PDT     -0.50 knots Max Ebb
Fri -- 04:48 AM PDT     0.00 knots Slack
Fri -- 05:02 AM PDT     Moonrise
Fri -- 07:04 AM PDT     Sunrise
Fri -- 07:34 AM PDT     0.52 knots Max Flood
Fri -- 10:25 AM PDT     -0.00 knots Slack
Fri -- 01:27 PM PDT     -0.82 knots Max Ebb
Fri -- 04:01 PM PDT     Moonset
Fri -- 05:19 PM PDT     0.00 knots Slack
Fri -- 07:23 PM PDT     Sunset
Fri -- 08:20 PM PDT     0.70 knots Max Flood
Fri -- 11:28 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.4-0.5-0.5-0.4-0.20.10.30.50.50.40.1-0.2-0.6-0.8-0.8-0.7-0.4-0.10.30.60.70.70.50.2

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of CentralWestCoast    EDIT
Geos

Wind Forecast for San Francisco/Monterey Bay Area, CA (4,6,7,8)
      (on/off)   Help

Ground Weather Radar Station San Francisco Bay Area, CA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.