Monday, January22, 2018 L-36.com


Marine Weather and Tides
Sagamore, MA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
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.

Sunrise 6:59AMSunset 4:46PM Monday January 22, 2018 11:05 AM EST (16:05 UTC) Moonrise 11:05AMMoonset 11:21PM Illumination 33% Phase: Waxing Crescent; Moon at 6 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- 1001 Am Est Mon Jan 22 2018
.gale warning in effect from Tuesday morning through Tuesday afternoon...
This afternoon..SE winds around 5 kt, becoming e. Seas 1 to 2 ft. Areas of fog. Showers early, then a chance of showers. Vsby 1 to 3 nm.
Tonight..SE winds 5 to 10 kt, becoming S 10 to 15 kt after midnight. Gusts up to 20 kt. Seas around 2 ft. Areas of fog. A chance of rain. Vsby 1 to 3 nm.
Tue..S winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 35 kt. Seas 3 to 5 ft. Patchy fog. Rain. Vsby 1 nm or less.
Tue night..SW winds 15 to 20 kt, becoming W 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft. A chance of showers.
Wed..W winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft.
Wed night..NW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 5 ft.
Thu..NW winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft.
Thu night..NW winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft.
Fri..NW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft.
Fri night..SW winds 5 to 10 kt. Seas around 2 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 1001 Am Est Mon Jan 22 2018
Synopsis for massachusetts and rhode island coastal waters.. Low pres will pass well W of the region late today. As a warm front passes N of the waters, rain will fall heavily at times with gusty south to southeast winds late tonight through Tue. A cold front will pass across the waters Wed as winds shift to W to nw. Winds will remain gusty Wed and Thu as large high pres builds toward the waters. The high will crest over the waters on Fri shifting east of the waters on Sat. 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 Sagamore, MA
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location: 41.83, -70.55     debug


Area Discussion for - Boston, MA
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Fxus61 kbox 221509
afdbox
area forecast discussion
national weather service taunton ma
1009 am est Mon jan 22 2018

Synopsis
Some light precipitation is expected today and tonight. Most of it
will be rain, but light icing is likely over interior high terrain
especially tonight into early Tuesday. A fast moving storm system
will bring a period of heavy rain to the region Tuesday along with
strong winds across SE new england. Blustery, dry and colder weather
follows Wednesday through Friday, then a warming trend next weekend.

A cold front may bring showers by next Sunday.

Near term until 6 pm this evening
1010 am update...

weak warm advection over the shallow cool dome in place has
resulted in a band of rain showers sweeping across the region
this morning. While most of the precipitation was just
liquid... Temps generally between 32 and 34 have resulted in some
slippery roads walkways across parts of interior ma especially
in the high terrain. Despite marginal temperatures... Paved
surfaces are still cold so some slick spots possible where even
temps are above freezing.

Batch of steady rain showers should exit the region by early
afternoon... But a few spot showers and pockets of drizzle along
with areas of fog will persist. May see threat for showers
increase toward evening... Especially in our western zones as
forcing deeper moisture moves into the region.

Temperatures will mainly hold in the 30s and there will
continue to be the threat for some icy travel across interior
ma... Especially across the high terrain. Therefore... Opted to
begin winter weather advisory now to cover this potential. Still
monitoring the need to expand advisory across interior
northeast ma.

Short term 6 pm this evening through 6 pm Tuesday
Tonight...

a stalled front near or just N of the region will not move much
tonight as the low moves into the western great lakes. With the
colder air sitting across northern new england, noting the cold
air damming signature becoming better established tonight,
especially across N central and NW mass. The bulk of the precip
will shift into northern new england, but will still see more
spotty light precip linger across the region. With the cold air
in place, and milder air working in aloft, will see periods of
light freezing rain continue. As mentioned above, the winter
weather advisory remains in effect from N worcester county
westward through the night. May see up to 0.1" ice accretion
across portions of the route 2 corridor mainly W of the
merrimack valley, where the best chance for freezing rain will
occur.

The warm front S of the region will start to lift N overnight,
so will see temps rise after midnight mainly toward daybreak
along the S coast, with readings holding around freezing well
inland.

Tuesday...

as the low pressure across the great lakes lifts into southern
ontario, will see another shot of milder air lift northward.

This is also associated with a very strong low level jet, on the
order of 50-55 kt, which will move across portions of ri SE mass
during the morning and midday hours. Noting very good low level
mixing in place, along with an increasing pressure gradient as
the low to the W strengthens. Could see S winds gusting up to
35-45 mph Tuesday morning into midday as the jet passes.

Also noting a deep tropical moisture connection, as pwat plume
of 1 to 1.25" works across the region. Will also see some good
instability ahead of the approaching cold front as total totals
rise to the lower 50s. Have also mentioned the chance for an
isolated thunderstorms as the front crosses the region from
midday through the afternoon hours.

An area of moderate to heavy rainfall will cross the region
during the day, with the highest amounts (up to around 1 to 1.3
inches across N central and W mass) moving across. There is a
risk for some urban and poor drainage flooding in any heavy
downpours. Could also see some issues along some of the mainstem
rivers, especially along the connecticut river where the higher
precipitation is expected to fall. Have held off issuing a flood
watch at this point, but will continue to monitor this aspect
closely.

Will see temps reach to lower-mid 50s across central and
southern areas, but remain in the upper 40s across the higher
terrain.

Long term Tuesday night through Sunday
Highlights...

* blustery and colder wed, and especially Thu fri, but dry
* much milder next weekend with showers possible by Sunday
Tuesday night...

cold front will be in the vicinity of the CAPE islands Tue evening
then moving offshore. Some lingering showers are possible here
early, and a few rain to snow showers possible western ma in the
evening as mid level trough swings through. Otherwise, gradual
clearing will develop although some lower clouds may linger across
nw ma. Gusty west winds will develop overnight as low level cold
advection increases.

Wednesday through Friday...

blustery and colder pattern as longwave trough develops over the ne
but mainly dry weather expected with dry column and subsidence. Near
normal temps wed, then trending below normal Thu fri. Core of the
coldest air aloft on Thu with 850 mb temps near -15c. This will
result in highs Thu mainly in the 20s to near 30 with gusty winds
making it feel considerably colder, while Thu night wind chills drop
into the single numbers and subzero higher terrain. Temps recover
fri as heights begin to rise and low level temps moderate but a cold
start will hold temps from the upper 20s to mid 30s.

Saturday and Sunday...

return to milder airmass and well above normal temps as high pres
moves offshore and mid level ridge builds north along the east
coast. 850 mb temp anomalies 1-2sd and eps GEFS ensembles have
fairly high probs of 50s in the coastal plain by sun. Deterministic
gfs looks too fast with next approaching trough and not supported by
majority of GEFS members so we leaned toward slower ecwmf solution
given downstream ridging in place over the western atlantic. Next
chance of showers assocd with the mid level trough and attending
cold front should hold off until Sunday or possibly Sat night. Very
low risk of some icing distant interior if precip comes in Sat night
but any freezing precip would probably be localized and this is
a very low probability.

Aviation 15z Monday through Friday
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Tuesday ...

today... Moderate confidence. Mainly ifr with localized lifr
conditions in areas of fog, drizzle and showers. Localized
-fzra fzdz remains possible across parts of interior
ma... Especially the high terrain.

Tonight... Low to moderate confidence.

MVFR-ifr CIGS for most areas. Rain most places with -fzra
across N central and NW mass as winds shift to e- there. Across
s areas, winds shift to S and increase after midnight, with
cigs lifting toVFR but MVFR-ifr vsbys linger in patchy fog.

Tuesday... Moderate confidence.

Mix of conditions from locallyVFR to start across N ct ri se
mass, ranging to ifr across N central and W mass. Conditions
lower to MVFR-ifr as cold front approaches, bringing low clouds
and areas of locally heavy rain. Low chance of tsra. Depending
upon the timing of the cold front, conditions may improve toVFR
across western areas during the afternoon.

Kbos terminal... Moderate to high confidence in taf.

Kbdl terminal... Moderate to high confidence in taf.

Outlook Tuesday night through Friday ...

Tuesday night: mainlyVFR, with local MVFR ifr possible in the
evening across CAPE islands. Windy with gusts to 30 kt. Slight
chance shra in the evening.

Wednesday:VFR. Windy with gusts to 30 kt.

Wednesday night through Friday:VFR. Breezy.

Marine
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Tuesday ... Moderate confidence.

Today...

light e-se winds increase to around 10 kt during the day. Seas
build up to 2-3 ft. Visibility reduced to around 3 miles during
the afternoon in rain and fog.

Tonight...

wind shift to se-s during the night, with gusts increasing to
20-25 kt. Seas build to 3-5 ft on the outer waters after
midnight. Visibility lowering to 1-3 miles in rain and fog.

Tuesday...

gale warning issued for all waters. S winds increase, gusting up
to 35-40 kt, highest from mid morning through the afternoon.

Seas build up to 6-9 ft. Visibility 1-3 miles in rain and fog.

Chance for isolated thunderstorm.

Outlook Tuesday night through Friday ...

Tuesday night: low risk for gale force winds with gusts up to
35 kt. Rough seas up to 12 ft. Slight chance of rain showers.

Wednesday: moderate risk for small craft advisory winds with
gusts up to 30 kt. Rough seas up to 11 ft.

Wednesday night: low risk for small craft advisory winds with
gusts up to 25 kt. Areas of rough seas.

Thursday through Thursday night: moderate risk for small craft
advisory winds with gusts up to 30 kt. Areas of rough seas.

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

Hydrology
A flood warning remains in effect for the connecticut river at
middle haddam, where ice jams are causing river fluctuations.

No significant change from earlier forecasts.

For details on specific area rivers, including observed and
forecast river stages, please visit the advanced hydrologic
prediction service (ahps) graphs on our website.

Box watches warnings advisories
Ct... None.

Ma... Winter weather advisory until 9 am est Tuesday for maz002>004-
008-026.

Ri... None.

Marine... Gale warning from 9 am to 8 pm est Tuesday for anz232>235-237-
250-254>256.

Gale warning from 10 am to 6 pm est Tuesday for anz230-231-236-
251.

Synopsis... Kjc
near term... Frank
short term... Evt
long term... Kjc
aviation... Frank evt kjc
marine... Evt kjc
hydrology... Staff


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44090 12 mi65 min 37°F
WAXM3 - Waquoit Bay Reserve, MA 17 mi80 min Calm 36°F 1026 hPa35°F
BZBM3 - 8447930 - Woods Hole, MA 22 mi47 min 37°F 34°F1025.4 hPa
44020 - NANTUCKET SOUND 33 mi75 min S 1.9 G 1.9 36°F 37°F1 ft1025.8 hPa (+2.2)36°F
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 34 mi47 min E 2.9 G 4.1 39°F 1024.9 hPa
FRVM3 - 8447386 - Fall River, MA 34 mi47 min 39°F 35°F1026 hPa
FRXM3 35 mi47 min 38°F 37°F
44013 - BOSTON 16 NM East of Boston, MA 36 mi75 min Calm G 0 39°F 40°F1 ft1025.8 hPa (+2.9)
BUZM3 - Buzzards Bay, MA 39 mi65 min ESE 8.9 G 8.9 38°F 1025.4 hPa (+2.0)
CPTR1 - 8452944 - Conimicut Light, RI 43 mi47 min ENE 5.1 G 5.1 37°F 35°F1025.4 hPa
NAXR1 - Narragansett Bay Reserve, RI 44 mi80 min NNE 1 37°F 1003 hPa37°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 44 mi47 min E 1.9 G 4.1 37°F 1025.1 hPa
PVDR1 44 mi47 min ENE 1 G 1.9 38°F 1025.7 hPa38°F
FOXR1 - 8454000 - Providence, RI 45 mi47 min E 4.1 G 5.1 37°F 36°F1025.2 hPa
NTKM3 - 8449130 - Nantucket Island, MA 45 mi47 min SE 2.9 G 5.1 40°F 35°F1025.8 hPa
BHBM3 - 8443970 - Boston, MA 45 mi47 min 36°F 1025.2 hPa
NWPR1 - 8452660 - Newport, RI 47 mi47 min E 5.1 G 8 40°F 36°F1024.7 hPa
44029 - Buoy A0102 - Mass. Bay/Stellwagen 48 mi121 min 3.9 G 5.8 39°F 39°F2 ft1024.6 hPa
QPTR1 - 8454049 - Quonset Point, RI 48 mi53 min NNE 6 G 7 38°F 35°F1025.5 hPa

Wind History for Borden Flats Light at Fall River, MA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Plymouth, Plymouth Municipal Airport, MA11 mi73 minE 32.00 miLight Rain Fog/Mist38°F36°F93%1025.8 hPa
Otis Air National Guard Base, MA12 mi70 minENE 42.50 miFog/Mist36°F35°F100%1026.1 hPa
Hyannis, Barnstable Municipal-Boardman Airport, MA18 mi69 minN 04.00 miLight Rain Fog/Mist39°F36°F89%1025.6 hPa
Marshfield Airport, MA20 mi70 minN 01.75 miLight Rain37°F37°F100%1025.7 hPa
Provincetown Municipal Airport, MA22 mi69 minN 010.00 miLight Rain39°F34°F82%0 hPa
New Bedford, New Bedford Regional Airport, MA24 mi72 minN 02.50 miLight Rain Fog/Mist37°F37°F100%1025.4 hPa

Wind History from PYM (wind in knots)
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Last 24hrNW74CalmNE6E3E3CalmCalmE3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmE3Calm
1 day agoSW12SW14
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W12SW10SW10W10W10W7SW6W3SW4CalmSW3S3CalmCalmCalmCalmCalmSW3W6W5
2 days agoNW7W7W9SW5W6SW4SW3SW4SW5SW6SW6SW6S4CalmS6SW8SW6S8SW9SW9SW13
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Tide / Current Tables for Cape Cod Canal, Bournedale, Massachusetts
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Cape Cod Canal
Click for Map
Mon -- 02:07 AM EST     6.16 feet High Tide
Mon -- 07:03 AM EST     Sunrise
Mon -- 08:21 AM EST     0.53 feet Low Tide
Mon -- 10:05 AM EST     Moonrise
Mon -- 02:20 PM EST     6.36 feet High Tide
Mon -- 04:45 PM EST     Sunset
Mon -- 08:45 PM EST     0.12 feet Low Tide
Mon -- 10:21 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.55.66.25.94.93.72.41.30.60.81.83.24.55.76.36.25.342.61.30.40.20.92.3

Tide / Current Tables for Cape Cod Canal, Massachusetts Current
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Cape Cod Canal
Click for Map
Mon -- 12:52 AM EST     -0.18 knots Slack
Mon -- 03:46 AM EST     -4.15 knots Max Ebb
Mon -- 06:38 AM EST     0.03 knots Slack
Mon -- 07:03 AM EST     Sunrise
Mon -- 09:34 AM EST     3.96 knots Max Flood
Mon -- 10:05 AM EST     Moonrise
Mon -- 12:50 PM EST     -0.03 knots Slack
Mon -- 04:04 PM EST     -4.34 knots Max Ebb
Mon -- 04:45 PM EST     Sunset
Mon -- 07:01 PM EST     0.01 knots Slack
Mon -- 10:03 PM EST     4.14 knots Max Flood
Mon -- 10:21 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.5-1-3-3.9-4.1-3.6-2.31.73.23.93.93.42.4-1.1-3-4-4.3-4-3-0.52.93.84.13.9

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Northeast    EDIT
Geos

Wind Forecast for Boston, MA (11,2,3,4)
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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.