Friday, October18, 2019 L-36.com


Marine Weather and Tides
Brewster, MA

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 6:55AMSunset 5:57PM Friday October 18, 2019 8:19 PM EDT (00:19 UTC) Moonrise 9:06PMMoonset 11:29AM Illumination 72% Phase: Waning Gibbous; Moon at 20 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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ANZ231 Cape Cod Bay- 717 Pm Edt Fri Oct 18 2019
.small craft advisory in effect until 8 pm edt this evening...
Tonight..NW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas around 4 ft.
Sat..NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas around 3 ft.
Sat night..W winds around 5 kt. Seas around 2 ft.
Sun..S winds around 5 kt. Seas 1 foot or less.
Sun night..E winds 5 to 10 kt. Seas 1 foot or less, then around 2 ft after midnight.
Mon..NE winds 5 to 10 kt. Seas around 2 ft.
Mon night..NE winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas around 3 ft.
Tue..E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. A chance of showers.
Tue night..SE winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. Showers.
Wed..SW winds around 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. Showers likely, mainly in the morning.
Wed night..W winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.
ANZ200 717 Pm Edt Fri Oct 18 2019
Synopsis for massachusetts and rhode island coastal waters.. A gale center moves up into the maritimes overnight. West winds gradually weaken by Saturday morning as high pressure builds over the east coast for the weekend. Low pressure may approach the southern waters Sunday night and Monday then remain in the vicinity through Tuesday. A cold front swings across the waters on Wednesday. For information on possible hazardous weather beyond the 24-36 hour forecast period, please visit www.weather.gov/boston and follow the current hazards link above the map on the left.


7 Day Forecast for Marine Location Near Brewster, MA
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location: 41.77, -70.08     debug


Area Discussion for - Boston, MA
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Fxus61 kbox 182259
afdbox
area forecast discussion
national weather service boston norton ma
659 pm edt Fri oct 18 2019

Synopsis
High pressure will build across the region this weekend bringing
dry and seasonable fall-like weather. Low pressure across the
great lakes with another low well south of nantucket will
likely bring showers and gusty onshore winds Tuesday into the
mid week timeframe. Another high builds to the mid atlantic
coast with more dry weather around Thursday.

Near term until 6 am Saturday morning
700 pm update...

no major changes to the near term forecast this evening. Skies
continue to clear with the last of the mid level deck lingering
over western ma and ct this evening. These will be gone in
plenty of time to benefit from radiative cooling overnight.

The big storm from yesterday will continue to move north across
eastern canada tonight as high pressure builds in from the west.

This coupled with the loss of daytime heating should allow gusty
winds to diminish early this evening. We also should see the strato
cu dissipate this evening with skies eventually becoming mainly
clear tonight.

Diminishing winds coupled with mainly clear skies should result in a
good night of radiational cooling. Low temps in many locations
should bottom out in the lower to middle 30s. We have continued the
frost advisory for the areas that were technically still in the
growing season. The urban heat islands of boston providence should
only drop into the upper 30s to lower 40s by daybreak.

Short term 6 am Saturday morning through Saturday night
Saturday...

high pressure overhead will result in a very nice fall day. After a
chilly start, mostly sunny skies should allow Sat afternoon high
temps to top out near 60 in most locations. Light winds and lots of
sunshine will make for a rather comfortable, but fall-like afternoon.

Saturday night...

high pressure will remain in control of the region, resulting in
continued dry tranquil weather. Model cross sections do indicate
that some high thin cloudiness may move into the region, but do not
expect them to have much impact on temperatures. The relatively dry
airmass in place along with light winds should allow a good night of
radiational cooling. Low temperatures by daybreak Sunday will be in
the upper 20s to the middle 30s in most locations except milder in a
few of the urban centers. Additional frost freeze headlines will
likely be needed where the growing season is technically still in
progress.

Long term Sunday through Friday
Highlights...

* remnants of tropical storm nestor may bring some showers on
Sunday, mainly to the south coast
* dry Monday under high pressure ridge
* unsettled weather returns tues Wed with rain and gusty winds
* dry late week
Sunday and Monday...

upper level ridge axis crosses the region early Sunday, placing
southern new england on the backside of the ridge under SW return
flow aloft, brining in more moisture and cloudy skies. Better cloud
coverage the further south you go, in closer proximity to the
subtropical tap of moisture lifting north. This is associated with
what is now tropical storm nestor, currently in the gulf of mexico.

Nestor is expected to move off the coast of north carolina into the
western atlantic as a post-tropical cyclone late Sunday. Currently
the most consistent guidance keeps the low center far enough south
that southern new england should escape any significant wind rain,
with perhaps the northern periphery of the rain shield reaching the
south coast or toward the mass pike. For now going with a slight
chance of rain showers Sunday in southern ma and southern ri.

Monday, while the remnants of nestor meander well to our south a
nice day is in store. An inverted ridge of high pressure keeps the
low center away while a mid level heights rise. Good subsidence and
a dry column will lead to a sunny, dry day with highs in the 60s.

This is right in line with seasonal normals for late october. The
gradient between the high and remnant low to our south may make
things breezy along the south coast, but not expecting anything
particularly impactful (gusts 15-25 mph).

Tuesday and Wednesday...

next chance of rain ramps up on Tuesday, maximizing in probability
and rainfall amounts Tuesday evening through the overnight hours.

This as a deep mid level shortwave approaches from the midwest,
becoming negatively tilted as it approaches new england Tuesday
night. A deep plume of moisture precedes the associated cold front
which crosses the region sometime late Tuesday or early Wednesday.

Additionally, along this frontal boundary a secondary low is
generated over the delmarva, while likely phasing with the remnants
of nestor. A lot of dynamic mesoscale features will be in play with
many moving parts, details of which will come into better focus as
we approach. All things considered, none of the guidance shows this
system getting near the strength of this past week's storm; no eps
members take the low sub-1000mb over southern new england. So,
expecting a rain event with breezy winds - details to be ironed out
in the future.

Thursday and Friday...

dry weather on tap to end the week as high pressure takes hold. No
major warm ups or cool downs; temperatures stay seasonal with highs
in the low 60s and lows in the 40s.

Aviation 00z Saturday through Wednesday
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Saturday night ...

00z update...

tonight... High confidence.VFR conditions as the remaining
strato CU dissipates this evening. Gusty northwest winds
diminish early in the evening.

Saturday and Saturday night... High confidence inVFR conditions.

Nw winds of 5 to 10 knots during the daylight hours Saturday
become very light Saturday night.

Kbos terminal... High confidence in taf.

Kbdl terminal... High confidence in taf.

Outlook Sunday through Wednesday ... High confidence.

Sunday:VFR. Slight chance shra.

Sunday night:VFR.

Monday through Monday night:VFR. Breezy.

Tuesday: mainlyVFR, with local ifr possible. Breezy. Chance
shra.

Tuesday night: mainlyVFR, with local ifr possible. Breezy.

Shra likely.

Wednesday:VFR. Breezy. Chance shra.

Marine
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Saturday night ...

tonight... High confidence. Lingering SCA winds seas will gradually
diminish as the night wears along from west to east. This in
response to high pressure building in from the west. SCA headlines
will gradually expire in most locations tonight as a result.

Saturday and Saturday night... High confidence. High pressure in
control will keep winds seas below small craft advisory thresholds.

Outlook Sunday through Wednesday ... Moderate confidence.

Sunday through Sunday night: winds less than 25 kt. Slight
chance of rain showers.

Monday: winds less than 25 kt. Local rough seas.

Monday night: winds less than 25 kt. Areas of rough seas.

Slight chance of rain showers.

Tuesday: low risk for small craft advisory winds with gusts up
to 25 kt. Rough seas up to 9 ft. Chance of rain showers.

Tuesday night: low risk for small craft advisory winds with
gusts up to 25 kt. Rough seas up to 9 ft. Rain showers likely.

Wednesday: moderate risk for small craft advisory winds with
gusts up to 25 kt. Rough seas up to 8 ft. Chance of rain
showers.

Box watches warnings advisories
Ct... Frost advisory from 3 am to 8 am edt Saturday for ctz002>004.

Ma... Frost advisory from 3 am to 8 am edt Saturday for maz017-018.

Ri... Frost advisory from 3 am to 8 am edt Saturday for riz001-003.

Marine... Small craft advisory until 8 pm edt this evening for
anz231>235-237-251-256.

Small craft advisory until 8 am edt Saturday for anz250-254.

Small craft advisory until 2 am edt Saturday for anz255.

Synopsis... Frank bw
near term... Frank bw
short term... Frank
long term... Bw
aviation... Frank bw
marine... Frank bw


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44090 14 mi49 min 56°F3 ft
44020 - NANTUCKET SOUND 22 mi39 min 57°F1 ft
WAXM3 - Waquoit Bay Reserve, MA 27 mi94 min WNW 1 53°F 1009 hPa43°F
44018 - SE Cape Cod 30NM East of Nantucket, MA 30 mi29 min WNW 21 G 25 53°F 4 ft1009.4 hPa (+2.7)39°F
NTKM3 - 8449130 - Nantucket Island, MA 34 mi49 min NW 7 G 9.9 56°F 57°F1009.9 hPa
BZBM3 - 8447930 - Woods Hole, MA 36 mi49 min 56°F 60°F1010.1 hPa

Wind History for Nantucket Island, MA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hyannis, Barnstable Municipal-Boardman Airport, MA12 mi83 minWNW 510.00 miFair53°F39°F61%1009.1 hPa
Provincetown Municipal Airport, MA18 mi23 minNW 1710.00 miFair53°F42°F66%0 hPa

Link to 5 minute data for KCQX

Wind History from CQX (wind in knots)
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Last 24hrCalmCalmS3CalmCalmCalmCalmSE3E9SE11
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1 day agoW5NW34NW54NW4Calm66NW76N7N654NE4NE3CalmCalmCalmCalmCalmCalmCalm
2 days agoCalmS3S3S3S4CalmS5SE3SE6E5E6E7E3Calm4344W4SW4SW464W5

Tide / Current Tables for Sesuit Harbor, East Dennis, Cape Cod Bay, Massachusetts
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Pollock Rip Channel, Massachusetts Current
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Pollock Rip Channel
Click for Map
Fri -- 12:56 AM EDT     -0.00 knots Slack
Fri -- 03:32 AM EDT     -1.79 knots Max Ebb
Fri -- 06:37 AM EDT     0.00 knots Slack
Fri -- 06:55 AM EDT     Sunrise
Fri -- 09:43 AM EDT     1.83 knots Max Flood
Fri -- 11:27 AM EDT     Moonset
Fri -- 01:07 PM EDT     -0.00 knots Slack
Fri -- 03:49 PM EDT     -1.81 knots Max Ebb
Fri -- 05:54 PM EDT     Sunset
Fri -- 06:52 PM EDT     0.00 knots Slack
Fri -- 09:05 PM EDT     Moonrise
Fri -- 10:07 PM EDT     2.01 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.9-0.1-1.1-1.7-1.7-1.3-0.50.31.21.71.81.510.1-0.9-1.6-1.8-1.4-0.80.111.721.9

Weather Map
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wmap_A
GEOS Local Image of Northeast    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 Boston, MA (20,4,5,8)
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Ground Weather Radar Station Boston, MA
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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.