Monday, January21, 2019 L-36.com


Marine Weather and Tides
Bourne, MA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:00AMSunset 4:44PM Monday January 21, 2019 12:33 PM EST (17:33 UTC) Moonrise 6:28PMMoonset 8:25AM Illumination 99% Phase: Full Moon; Moon at 16 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
ANZ234 Buzzards Bay- 1013 Am Est Mon Jan 21 2019
.gale warning in effect through Tuesday morning...
.freezing spray advisory in effect through Tuesday morning...
This afternoon..W winds 15 to 20 kt, becoming nw 20 to 25 kt. Gusts up to 35 kt. Seas 3 to 4 ft. Freezing spray. A chance of flurries. A chance of snow showers.
Tonight..NW winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 35 kt. Seas 3 to 4 ft. Freezing spray.
Tue..NW winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Freezing spray in the morning.
Tue night..W winds 5 to 10 kt, becoming sw after midnight. Seas 1 foot or less, then around 2 ft after midnight.
Wed..SW winds 15 to 20 kt with gusts up to 30 kt. Seas around 4 ft. Rain likely.
Wed night..SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 30 kt. Seas 4 to 5 ft. Rain. Vsby 1 nm or less, increasing to 1 to 3 nm after midnight.
Thu..SW winds 15 to 20 kt with gusts up to 30 kt. Seas 6 to 7 ft. Rain. Vsby 1 to 3 nm.
Thu night..W winds 10 to 15 kt with gusts up to 25 kt. Seas around 5 ft. A chance of rain in the evening.
Fri..W winds 10 to 15 kt with gusts up to 20 kt. Seas around 4 ft.
Fri night..W winds 10 to 15 kt with gusts up to 20 kt. Seas around 5 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 1013 Am Est Mon Jan 21 2019
Synopsis for massachusetts and rhode island coastal waters.. Arctic air will spread across the waters through tonight on gusty nw gales, resulting in widespread areas of freezing spray. High pres builds over the waters Tue, then moves off the mid- atlantic coast Wed. Low pres will move E across nrn new england Wed and Wed night, and be trailed by another low pres lifting ne over srn new england Thu. High pres follows for Fri and Fri night. 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 Bourne, MA
   Hourly   EDIT   Help
location: 41.74, -70.61     debug


Area Discussion for - Boston, MA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 kbox 211545
afdbox
area forecast discussion
national weather service boston norton ma
1045 am est Mon jan 21 2019

Synopsis
Arctic air pours into our region today behind the departing storm,
bringing dangerously cold wind chills. Moderating temperatures
Tuesday into Wednesday, then another storm brings a soaking rain
late Wednesday through Thursday night. Return of cold and mainly dry
conditions Friday into this weekend.

Near term until 6 pm this evening
1030 am update...

mid level vortex over vt and western ma this morning circulating
an arctic airmass across the region with 10 am temps from about
5 above to 5 below zero. This frigid temps combined with nw
winds 15-25g35 mph yielding dangerously cold wind chills as cold
as -30 at worcester! Speaking of worcester, they tied a record
low temp this morning of -6f, previously set back in 1970.

So wind chill warnings and advisories will remain posted today
given core of arctic airmass continues to overspread the region
with 1000-500 thickness falling below 500 dam!
a mix of Sun and clouds this afternoon but also some
flurries very light snow showers at times given cyclonic flow
aloft from mid level vortex combined with some upslope flow from
nw winds streaming across the high terrain.

Ocean effect snow showers continue for the outer CAPE given the
nw trajectory. Will be reviewing new model guid to see if extent
of accumulations if wind turns more to the nnw increasing the
fetch of cold air across the relatively warm waters. Speaking of
fetch, you know it's an extremely cold airmass when you have
ocean effect snow showers at nantucket with an extremely short
fetch across the sound. Also coastal web cams capturing arctic
sea smoke from extreme evaporation saturating the layer
immediately above the ocean surface.

Short term 6 pm this evening through 6 pm Tuesday
Overnight and Tuesday mid level heights are on the rise as a
high pressure ridge builds into the northeast. This will relax
our pressure gradient and bring down the winds by Tuesday as the
surface low moves over head. Overnight, skies clear rapidly
from the west as dry air moves in and plenty of Sun is in store
for Tuesday. Don't let the sunshine fool you, though, since
we'll remain locked in a very cold pattern until Wednesday. Lows
Tuesday morning in the single digits to below zero will rebound
to the mid 20s by Tuesday. It's not warm but compared to the
single digit highs of Monday, plus the lack of wind, Tuesday
will feel practically balmy.

Long term Tuesday night through Sunday
* highlights...

- soaking rains late Wednesday through Thursday night
- return cold air Friday into the weekend
- watching a following early week storm system
* discussion...

21 00z guidance remains in rather good overall agreement through
Wednesday, then differences start to amplify through early next
week. Will prefer a consensus approach to this forecast to smooth
over the less predictable details through Wednesday, and to minimize
the timing and amplitude differences for the second half of this
forecast period.

In general, broad mid level ridge over the eastern usa shifts over
the north atlantic Wednesday, while a trough dominates much of the
central usa. This configuration should result in a potent SW flow.

This will not only track a low pressure our way toward mid week, but
also raise temperatures where mainly rainfall is expected. Decent
signal for low level temperatures to be about 1 standard deviation
above normal. Also looking like another moisture-rich system, with
precipitable water values about 3 standard deviations above normal.

Have high confidence in a period of wet weather sometime Wednesday
into Thursday. Depending upon timing, looking like snow to start
with a transition to all rain by late Wednesday afternoon. Small
risk for precipitation to end as snow towards NW ma Thursday
afternoon.

Once this low pressure departs our region, we should have another
period of very cold weather heading into this weekend. This could
set the stage for another winter storm early next week. Still lots
of moving parts with that storm, so not much confidence in the
details at this time.

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 ... High confidence
1030 am update...

mainlyVFR but occasionally marginal MVFR in scattered
flurries snow showers. Also MVFR just offshore including cape
cod and islands with scattered snow showers. Previous discussion
below.

=================================================================
today...

mainlyVFR cigs, but areas of MVFR across eastern ma
and CAPE islands. Sct flurries or snow showers possible. Nw
gusts to 30 to 35 kt with isolated 40 kts across SE coastal
terminals.

Tonight and Tuesday...VFR.

Kbos terminal... High confidence in taf.

Kbdl terminal... High confidence in taf
outlook Tuesday night through Friday ...

Tuesday night:VFR. Breezy.

Wednesday: mainlyVFR, with local ifr possible. Windy with local
gusts to 30 kt. Ra or fzra, with a chance of sn or pl.

Wednesday night: mainlyVFR, with areas ifr possible. Windy
with gusts to 30 kt. Ra or fzra.

Thursday: mainlyVFR, with local ifr possible. Strong winds
with areas gusts to 40 kt. Chance ra.

Thursday night:VFR. Windy with gusts to 35 kt. Slight chance
ra.

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 ...

1030 am update...

expanded heavy freezing spray for all eastern ma waters.

Otherwise no changes. Previous discussion below.

===========================================================
nw gales persist through today in the strong cold advection.

With the arctic air pouring into the region and rough seas,
widespread moderate freezing spray will develop on all open
waters, with pockets heavy freezing spray.

Tuesday NW winds come down through the day, gusting 20-25 kts by
early afternoon. Seas start 5-7 ft with 9-11 ft on the outer
waters. By evening 2-4 ft for coastal waters and 5-8 ft outer.

Outlook Tuesday night through Friday ...

Tuesday night: winds less than 25 kt. Seas locally approaching
5 ft.

Wednesday: moderate risk for small craft advisory winds with
areas of gusts up to 30 kt. Areas of rough seas. Chance of
rain.

Wednesday night: low risk for gale force winds with gusts up to
30 kt. Areas of rough seas. Rain.

Thursday: moderate risk for gale force winds with gusts up to
40 kt. Rough seas up to 14 ft. Rain.

Thursday night: low risk for gale force winds with gusts up to
40 kt. Rough seas up to 13 ft. Chance of rain.

Friday: moderate risk for small craft advisory winds with gusts
up to 25 kt. Rough seas up to 11 ft.

Tides coastal flooding
1030 am update...

still running about a 0.3 ft surge in response to leftover
easterly swells precluding water from draining seaward. Given
high astro tide of 11.9 ft at boston total water levels will top
off just over 12 ft. So most prone areas will see very minor
water inundation along the eastern ma coastline. Previous
discussion below.

==================================================================
Monday morning astronomical high tides are a
few tenths higher along the east coast. While both seas and
surge will have subsided, there is a lingering easterly swell
and wave action offshore to lead to an additional 0.1-0.3 foot
surge.

With an astronomical tide around 11.9 at boston at 11am, there is
the risk for some spotty minor coastal flooding. Overall, the
flooding risk is lower, and will likely be limited to the typically
prone locations.

A coastal flood statement has been issued.

Box watches warnings advisories
Ct... Wind chill advisory until 8 am est Tuesday for ctz002>004.

Ma... Wind chill advisory until 8 am est Tuesday for maz005>007-
010>021.

Wind chill warning until 5 am est Tuesday for maz002-008-009.

Wind chill warning until 8 am est Tuesday for maz003-004-026.

Ri... Wind chill advisory until 8 am est Tuesday for riz001>007.

Marine... Heavy freezing spray warning until 6 am est Tuesday for anz231-
232-250-251-254.

Gale warning until 7 am est Tuesday for anz232>234.

Freezing spray advisory until 11 am est Tuesday for anz233>235-
237-255-256.

Gale warning until 9 pm est this evening for anz230.

Gale warning until 6 am est Tuesday for anz231-251.

Gale warning until 10 pm est this evening for anz236.

Gale warning until 5 am est Tuesday for anz235-237.

Gale warning until 10 am est Tuesday for anz250-254>256.

Synopsis... Belk sipprell bw
near term... Belk nocera bw
short term... Bw
long term... Belk
aviation... Belk nocera bw
marine... Belk nocera bw
tides coastal flooding... Nocera


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
WAXM3 - Waquoit Bay Reserve, MA 12 mi109 min W 8 8°F 1010 hPa-5°F
BZBM3 - 8447930 - Woods Hole, MA 15 mi40 min 7°F 35°F1009 hPa
44020 - NANTUCKET SOUND 24 mi34 min WNW 18 G 23 7°F 35°F1008.5 hPa (+0.5)-1°F
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 30 mi40 min WNW 23 G 27 5°F 1010 hPa
FRXM3 30 mi40 min 6°F 1°F
BUZM3 - Buzzards Bay, MA 33 mi34 min NW 26 G 28 4°F 1010.4 hPa (+0.6)
CPTR1 - 8452944 - Conimicut Light, RI 39 mi40 min WNW 24 G 30 3°F 38°F1010.6 hPa
NAXR1 - Narragansett Bay Reserve, RI 39 mi109 min WNW 13 5°F 1011 hPa-6°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 39 mi40 min NNW 8.9 G 18 4°F 1010.8 hPa
NWPR1 - 8452660 - Newport, RI 41 mi40 min NW 16 G 22 4°F 35°F1010.6 hPa
PVDR1 41 mi40 min WNW 15 G 21 4°F 1010.7 hPa-6°F
44018 - SE Cape Cod 30NM East of Nantucket, MA 41 mi44 min W 23 G 31 8°F 8 ft1006.6 hPa (+1.6)4°F
44013 - BOSTON 16 NM East of Boston, MA 42 mi44 min WNW 23 G 31 6°F 42°F6 ft1007.2 hPa (+1.6)3°F
NTKM3 - 8449130 - Nantucket Island, MA 42 mi40 min WNW 8.9 G 18 8°F 36°F1008.6 hPa
FOXR1 - 8454000 - Providence, RI 42 mi40 min NW 19 G 27 3°F 38°F1010.1 hPa
QPTR1 - 8454049 - Quonset Point, RI 44 mi40 min WNW 16 G 23 4°F 39°F1011 hPa
BHBM3 - 8443970 - Boston, MA 48 mi40 min 6°F 1008.8 hPa

Wind History for Borden Flats Light at Fall River, MA
(wind in knots)    EDIT      (on/off)   Help
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
10
AM
11
AM
12
PM
Last
24hr
NE8
N8
NW17
G22
N11
G15
NW8
G11
NW10
G13
NW15
G19
NW17
G25
NW17
G22
NW14
G25
NW21
G30
NW18
G25
NW20
W21
G29
W24
G33
NW19
G24
W22
G27
W19
G26
NW17
G21
W22
G27
W21
G29
NW20
G25
NW19
G24
W23
1 day
ago
NE12
G15
NE12
G15
NE10
G13
NE8
N7
NE10
NE10
NE11
G14
E10
E10
G13
E9
NE13
NE11
G15
NE12
G15
NE15
NE15
G19
E14
G18
NE14
NW10
G14
NE11
NE10
NE13
G16
NE9
NE9
G12
2 days
ago
SE4
W6
SW5
SW2
SW9
SW6
S5
W2
SW5
SW6
W5
W6
NW6
NW3
NW4
NW6
NE2
NE3
N2
NE5
NE11
NE11
NE11
NE9

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Otis Air National Guard Base, MA7 mi39 minNW 12 G 2110.00 miMostly Cloudy7°F-5°F56%1008.5 hPa
Plymouth, Plymouth Municipal Airport, MA13 mi42 minWNW 15 G 2410.00 miMostly Cloudy6°F-5°F60%1008.7 hPa
Hyannis, Barnstable Municipal-Boardman Airport, MA18 mi38 minWNW 11 G 1610.00 miMostly Cloudy10°F-5°F50%1007.8 hPa
New Bedford, New Bedford Regional Airport, MA19 mi41 minW 13 G 2510.00 miMostly Cloudy6°F-5°F60%1009.4 hPa
Marthas Vineyard Airport, MA23 mi41 minWNW 133.00 miLight Snow6°F-2°F69%1009.1 hPa
Taunton, Taunton Municipal Airport, MA24 mi42 minW 14 G 2210.00 miOvercast6°F-8°F52%1009.4 hPa

Wind History from FMH (wind in knots)
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
-12
PM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
Last 24hrNE13E6SE7NW14
G19
NW14
G19
NW8NW14
G19
NW16NW15
G21
W18
G24
NW14NW18
G26
NW18
G25
NW20
G31
NW20
G26
W15
G31
W13
G23
W15
G23
W17
G23
NW15
G21
NW18
G25
W15
G23
W17W19
G27
1 day agoNE12NE10NE11NE11NE9NE11E7NE8E7E9
G17
E10E10E13
G20
NE12
G19
NE11NE16NW7
G14
NE11SE13CalmSW14
G23
S16SE3NE8
2 days agoE4E5CalmCalmW3W3CalmCalmCalmCalmCalmCalmCalmW3CalmNW4NW3NW5NW5N5N8NE15NE9
G16
NE9

Tide / Current Tables for Cape Cod Canal, Buzzards Bay Entrance, Massachusetts
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Cape Cod Canal
Click for Map
Mon -- 12:17 AM EST     Full Moon
Mon -- 03:01 AM EST     -0.31 feet Low Tide
Mon -- 07:04 AM EST     Sunrise
Mon -- 07:25 AM EST     Moonset
Mon -- 08:46 AM EST     4.94 feet High Tide
Mon -- 04:08 PM EST     -0.90 feet Low Tide
Mon -- 04:43 PM EST     Sunset
Mon -- 05:28 PM EST     Moonrise
Mon -- 09:09 PM EST     4.01 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
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
0.6-0-0.2-0.3-0.20.623.64.74.94.43.21.80.6-0.1-0.6-0.9-0.60.52.13.443.72.8

Tide / Current Tables for Cape Cod Canal, Massachusetts Current
   EDIT      (on/off)   Help   One Week of Data
Cape Cod Canal
Click for Map
Mon -- 12:17 AM EST     Full Moon
Mon -- 02:58 AM EST     0.02 knots Slack
Mon -- 05:57 AM EST     4.48 knots Max Flood
Mon -- 07:04 AM EST     Sunrise
Mon -- 07:25 AM EST     Moonset
Mon -- 09:10 AM EST     -0.08 knots Slack
Mon -- 12:15 PM EST     -5.06 knots Max Ebb
Mon -- 03:25 PM EST     0.22 knots Slack
Mon -- 04:43 PM EST     Sunset
Mon -- 05:28 PM EST     Moonrise
Mon -- 06:32 PM EST     4.87 knots Max Flood
Mon -- 09:59 PM EST     -0.03 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
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
-4.6-4.2-3.10.63.24.24.54.23.31.4-3.1-4.5-5-4.9-4-2.22.64.14.84.84.33.3-0.4-3.5

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
GOES 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Boston, MA (12,3,4,5)
      (on/off)   Help

Ground Weather Radar Station Boston, MA
   (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.