Tuesday, March26, 2019 L-36.com


Marine Weather and Tides
Chelsea, 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 6:35AMSunset 7:04PM Tuesday March 26, 2019 6:23 AM EDT (10:23 UTC) Moonrise 12:29AMMoonset 10:18AM Illumination 71% 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
    EDIT      (on/off)   Help
ANZ230 Boston Harbor- 339 Am Edt Tue Mar 26 2019
Today..N winds 10 to 15 kt, becoming ne this afternoon. Waves around 2 ft this morning, then 1 foot or less.
Tonight..N winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft.
Wed..N winds 5 to 10 kt, becoming E in the afternoon. Waves 1 foot or less.
Wed night..S winds 5 to 10 kt. Waves 1 foot or less.
Thu..SW winds 5 to 10 kt, becoming S 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves around 2 ft.
Thu night..SW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves around 2 ft. A chance of showers.
Fri..SW winds 5 to 10 kt. Waves around 2 ft in the morning, then 1 foot or less.
Fri night..S winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft after midnight.
Sat..S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves around 2 ft.
Sat night..S winds 10 to 15 kt. Gusts up to 20 kt in the evening. Waves around 2 ft. A chance of rain after midnight. 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 339 Am Edt Tue Mar 26 2019
Synopsis for massachusetts and rhode island coastal waters.. As a storm sweeps E from the mid-atlantic today, high pressure builds across the region immediately after persisting through midweek. By late week, we'll see another weak cold frontal system stall as it approaches the region, lingering into the weekend. Lifting, turning warmer, all prior to a more potent frontal system for early next week. 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 Chelsea, MA
   Hourly   EDIT   Help
location: 42.37, -71.06     debug


Area Discussion for - Boston, MA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 kbox 260749
afdbox
area forecast discussion
national weather service boston norton ma
349 am edt Tue mar 26 2019

Synopsis
Building high pressure through Wednesday with seasonable, dry
weather. A weak cold front may bring a few showers Thursday
night, otherwise moderating temperatures Thursday into Friday.

Mild weather next weekend, but low pressure may bring a period
of rain sometime late Sunday into Monday with much cooler
weather possible by Monday.

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

chilly start. Cloud shield continues to erode s. Where winds are
onshore with higher dewpoint, rather than a drier N wind, seeing
some low clouds develop as the boundary layer cools, condenses,
mainly over SE new england with scattered to broken ceilings
around 2-3 kft agl. Will see N winds uptick W to E through this
morning making it feel colder with lows around the 20s for the
bus stop, roughly about 5 to 10 degrees. Cloud shield continuing
to erode s, expect plenty of sunshine at sunrise. Sunglasses
advised with morning solar glare.

Today ...

dry. Near-seasonable. Influential dome of high pressure beneath
a mid-level sweeping h5 trof axis and attendant vortmax. Overall
dry column as N winds persist in wake of aforementioned dynamics
and as mid-atlantic surface low pressure ejects out to sea, winds
that diminish with time allowing onshore sea-breezes along E ma
later in the day. Well-mixed to h8, dropped dewpoints considerably
into the single digits. Highs around the low to mid 40s. Mostly
clear conditions, abundant sunshine.

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

chilly again. Dome of high pressure more influential, light winds
and mostly clear conditions, leaned with coldest forecast guidance
mainly consisting of MOS guidance that has undergone bias correction.

Looking at lows around 20 degrees for most of S new england.

Wednesday ...

beautiful day. Beneath high pressure, light winds becoming s, abundant
sunshine, slightly warmer aloft, looking at highs around the mid to
upper 40s with another day of very dry conditions, dewpoints back
down into the single digits with boundary-layer mixing. Keep the
lip balm on hand.

Long term Wednesday night through Monday
Highlights...

* dry weather prevails much of this time period
* warming trend from Thursday through Saturday
* low risk of showers Thu night Fri morning, then again
sometime Saturday night into Monday morning
Thursday through Saturday...

high pressure should move farther out to sea Thursday, which will
permit a cold front to approach southern new england towards
daybreak Friday. Above normal temperatures expected during this
time. Rainfall chances will be scattered at best and mainly confined
towards northwest massachusetts, at least until a low pressure moves
through the great lakes Saturday. It is possible a secondary low
pressure develops more towards our region Saturday night as this
system passes by. This would lead to a more widespread, but still
light, rainfall. Have only moderate confidence in the timing of
rainfall chances during this portion of the forecast.

Sunday into Monday...

expecting Sunday to be another transition day, not atypical of
spring. As a weak low pressure passes by, our warming trend is
snapped and we start trending toward lower temperatures. Still
thinking temperatures will be above normal, but noticeably colder
conditions by Monday when compared to the warmth of Saturday. High
pressure building in from the west should mean drier weather
developing from west to east on Monday.

Aviation 08z Tuesday through Saturday
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Wednesday ...

today ...

vfr. Morning sct-bkn MVFR 2-3 kft over SE ma eroding quick. N
winds persisting however E ma sea-breezes developing around 15z.

Tonight ...

vfr. Light N winds. Skc.

Wednesday ...

vfr. Light winds becoming s. Skc.

Kbos terminal ...

n winds this morning, watching for sea-breeze development around
15z.

Kbdl terminal ...

high confidence in taf
outlook Wednesday night through Saturday ...

Wednesday night:VFR.

Thursday:VFR. Breezy.

Thursday night:VFR. Breezy. Chance shra.

Friday:VFR.

Friday night: mainlyVFR, with local MVFR possible. Slight
chance shra.

Saturday:VFR. Breezy.

Marine
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Wednesday ...

today ...

mid-atlantic surface low pressure ejecting out to sea as high
pressure builds into the waters, a brief period of 25 kt gusts
and 5 foot seas for the S SE outer waters especially, concluding
by sunset.

Tonight and Wednesday ...

beneath high pressure, light winds prevailing, seas diminishing,
good boating weather prevails.

Outlook Wednesday night through Saturday ...

Wednesday night: winds less than 25 kt.

Thursday: winds less than 25 kt. Areas of seas approaching
5 ft.

Thursday night: winds less than 25 kt. Seas up to 5 ft. Slight
chance of rain showers.

Friday: winds less than 25 kt. Seas up to 5 ft.

Friday night: winds less than 25 kt. Areas of seas approaching
5 ft.

Saturday: winds less than 25 kt. Seas up to 5 ft.

Box watches warnings advisories
Ct... None.

Ma... None.

Ri... None.

Marine... Small craft advisory until 8 pm edt this evening for anz255.

Small craft advisory from 8 am this morning to 8 pm edt this
evening for anz254.

Small craft advisory until 11 am edt this morning for anz235-
237.

Small craft advisory until 2 pm edt this afternoon for anz256.

Synopsis... Belk sipprell
near term... Sipprell
short term... Sipprell
long term... Belk
aviation... Belk sipprell
marine... Belk sipprell


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
BHBM3 - 8443970 - Boston, MA 1 mi35 min 33°F 1022.4 hPa
44013 - BOSTON 16 NM East of Boston, MA 22 mi33 min NNE 12 G 16 37°F 39°F2 ft1021.4 hPa (+1.3)17°F
44029 - Buoy A0102 - Mass. Bay/Stellwagen 28 mi79 min NNE 12 G 14 36°F 38°F2 ft1020.1 hPa
FOXR1 - 8454000 - Providence, RI 43 mi41 min NE 8 G 13 33°F 41°F1021.1 hPa
PVDR1 44 mi35 min N 9.9 G 14 33°F 1021.6 hPa9°F
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 46 mi35 min NNE 12 G 15 34°F 1021.3 hPa
FRVM3 - 8447386 - Fall River, MA 46 mi35 min 34°F 43°F1021.5 hPa
FRXM3 47 mi41 min 35°F 24°F
IOSN3 - Isle of Shoals, NH 47 mi83 min NW 8 G 8 33°F 1021.2 hPa (+0.7)8°F
CPTR1 - 8452944 - Conimicut Light, RI 48 mi35 min N 12 G 16 33°F 42°F1021.3 hPa
BGXN3 - Great Bay Reserve, NH 49 mi98 min Calm 20°F 1023 hPa16°F

Wind History for Providence, RI
(wind in knots)    EDIT      (on/off)   Help
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
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
Last
24hr
NW6
G9
N7
NE4
G14
NE3
G12
NE7
G11
N2
SE4
NW6
G10
S4
G12
N7
G10
N12
S10
G13
S9
S13
G17
S11
G15
S8
G11
S3
SW1
NE7
G11
N7
G13
N7
G10
NE7
G10
NE9
G14
NE5
G11
1 day
ago
NW5
G8
NW4
G10
NW7
G15
W9
G14
NW3
G12
NW7
G10
W8
G16
W12
G17
W9
G15
W7
G12
SW13
G16
SW9
G12
SW10
G14
SW8
G12
SW5
W2
G5
W4
W4
W3
SW1
SW3
W1
W2
W2
G5
2 days
ago
NW16
G22
NW12
G24
NW16
G27
NW12
G30
N11
G24
NW16
G27
NW18
G27
NW17
G22
N18
G26
N19
G26
N15
G23
NW11
G19
N11
G21
NW11
G20
NW15
G21
NW12
G19
NW13
G17
N10
G16
N4
G12
NW8
G12
NW4
G8
NW4
G8
NW7
G11
NW6
G10

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Boston, Logan International Airport, MA2 mi29 minNNW 610.00 miA Few Clouds33°F7°F33%1022.4 hPa
Norwood, Norwood Memorial Airport, MA14 mi30 minN 410.00 miFair32°F6°F33%1022.1 hPa
Laurence G Hanscom Field Airport, MA14 mi27 minNNW 310.00 miFair25°F8°F48%1023.5 hPa
Beverly, Beverly Municipal Airport, MA16 mi30 minN 510.00 miFair30°F3°F31%1021.8 hPa

Wind History from BOS (wind in knots)
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
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
Last 24hrN13N11N13
G20
NW13W12NW8
G14
--NW10
G17
CalmNW13
G21
E13E14SE10SE7S7S5S3S4S3N6N8N11N8N6
1 day agoSW9SW7W11
G16
W12W10W12
G18
W11SW13
G20
SW17
G22
SW11
G17
SW12
G20
W15
G24
W12SW13SW13SW14--W10W4SW7W11W12W7SW7
2 days agoW19
G30
W22
G29
NW21
G29
W23
G28
W25
G35
W17
G31
W23
G32
W21
G34
W22
G31
NW15
G30
NW20
G34
NW19
G27
NW17
G29
W17
G22
W17W16
G22
W15W17
G27
W12W12
G19
W11
G16
W8W9W12

Tide / Current Tables for Charles River Dam, Charles River, Massachusetts
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Charles River Dam
Click for Map
Tue -- 12:29 AM EDT     Moonrise
Tue -- 04:01 AM EDT     10.60 feet High Tide
Tue -- 06:37 AM EDT     Sunrise
Tue -- 10:18 AM EDT     Moonset
Tue -- 10:21 AM EDT     -0.22 feet Low Tide
Tue -- 04:38 PM EDT     9.38 feet High Tide
Tue -- 07:03 PM EDT     Sunset
Tue -- 10:36 PM EDT     0.82 feet Low 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
3.25.689.910.6108.36.13.61.2-0.10.11.43.35.67.89.19.38.46.84.72.61.10.9

Tide / Current Tables for Boston Harbor, Massachusetts Current
   EDIT      (on/off)   Help   One Week of Data
Boston Harbor
Click for Map
Tue -- 12:28 AM EDT     Moonrise
Tue -- 12:51 AM EDT     1.22 knots Max Flood
Tue -- 03:34 AM EDT     -0.00 knots Slack
Tue -- 06:37 AM EDT     Sunrise
Tue -- 08:00 AM EDT     -1.26 knots Max Ebb
Tue -- 10:16 AM EDT     0.00 knots Slack
Tue -- 10:18 AM EDT     Moonset
Tue -- 01:31 PM EDT     1.10 knots Max Flood
Tue -- 04:07 PM EDT     -0.00 knots Slack
Tue -- 07:02 PM EDT     Sunset
Tue -- 08:32 PM EDT     -1.06 knots Max Ebb
Tue -- 10:34 PM EDT     0.00 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
1.21.210.4-0.2-0.7-1-1.2-1.3-1-0.30.611.11.10.70.1-0.4-0.7-0.9-1-1-0.50.4

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
GOES Local Image of    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 (6,6,7,8)
      (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.