Friday, October18, 2019 L-36.com


Marine Weather and Tides
Lynn, 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 6:58AMSunset 5:59PM Friday October 18, 2019 8:13 PM EDT (00:13 UTC) Moonrise 9:07PMMoonset 11:34AM 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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ANZ230 Boston Harbor- 717 Pm Edt Fri Oct 18 2019
Tonight..NW winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft.
Sat..NW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt in the afternoon. Waves around 2 ft in the morning, then 1 foot or less.
Sat night..NW winds around 5 kt. Waves 1 foot or less.
Sun..NW winds around 5 kt, becoming se in the afternoon. Waves 1 foot or less.
Sun night..SE winds around 5 kt, becoming ne after midnight. Waves 1 foot or less.
Mon..NE winds 5 to 10 kt. Waves 1 foot or less.
Mon night..NE winds 5 to 10 kt. Waves 1 foot or less, then around 2 ft after midnight.
Tue..E winds around 10 kt with gusts up to 20 kt. Waves around 3 ft, except 5 to 6 ft at the outer harbor entrance. A chance of showers.
Tue night..SE winds around 10 kt. Gusts up to 20 kt after midnight. Waves around 3 ft. Showers.
Wed..SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Showers likely, mainly in the morning.
Wed night..W winds 10 to 15 kt. Waves 1 foot or less. 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 Lynn, MA
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location: 42.45, -70.95     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
BHBM3 - 8443970 - Boston, MA 8 mi61 min 56°F1009.3 hPa
44013 - BOSTON 16 NM East of Boston, MA 17 mi83 min NW 19 G 25 55°F 57°F3 ft1008.4 hPa (+2.7)40°F
44029 - Buoy A0102 - Mass. Bay/Stellwagen 21 mi129 min WNW 18 G 21 55°F 56°F2 ft1007.6 hPa
IOSN3 - Isle of Shoals, NH 40 mi73 min WNW 16 G 18 51°F 1008.7 hPa (+3.2)40°F
BGXN3 - Great Bay Reserve, NH 43 mi88 min W 5.1 50°F 1009 hPa39°F
44073 45 mi129 min WNW 19 G 25 55°F
CMLN3 45 mi189 min 56°F
44018 - SE Cape Cod 30NM East of Nantucket, MA 46 mi83 min NW 18 G 21 54°F 5 ft1008.8 hPa (+2.7)38°F
44098 - Jeffrey's Ledge, NH (160) 48 mi35 min 55°F5 ft

Wind History for Providence, RI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Boston, Logan International Airport, MA6 mi19 minNW 12 G 2110.00 miA Few Clouds53°F36°F52%1010.9 hPa
Beverly, Beverly Municipal Airport, MA9 mi20 minNW 1010.00 miFair49°F37°F64%1010 hPa
Laurence G Hanscom Field Airport, MA18 mi22 minWNW 12 G 1910.00 miFair52°F36°F55%1012.1 hPa
Lawrence Municipal Airport, MA21 mi19 minWNW 610.00 miFair48°F37°F66%1011.3 hPa
Norwood, Norwood Memorial Airport, MA21 mi20 minNNW 410.00 miFair50°F36°F59%1010.9 hPa

Link to 5 minute data for KBOS

Wind History from BOS (wind in knots)
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1 day agoE17E24
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2 days agoS7S7S7CalmS5SW6SW6SW5S5S5CalmS3SE6SE11SE11SE13E20E18E18E16E18E14E15
G22
E18
G23

Tide / Current Tables for Lynn, Lynn Harbor, 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 Marblehead Channel, Massachusetts Current
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Marblehead Channel
Click for Map
Fri -- 03:23 AM EDT     -0.00 knots Slack
Fri -- 06:12 AM EDT     -0.33 knots Max Ebb
Fri -- 06:59 AM EDT     Sunrise
Fri -- 09:57 AM EDT     0.00 knots Slack
Fri -- 11:33 AM EDT     Moonset
Fri -- 12:09 PM EDT     0.46 knots Max Flood
Fri -- 03:42 PM EDT     -0.00 knots Slack
Fri -- 05:56 PM EDT     Sunset
Fri -- 06:40 PM EDT     -0.38 knots Max Ebb
Fri -- 09:06 PM EDT     Moonrise
Fri -- 10:32 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.40.40.30.1-0.1-0.3-0.3-0.3-0.3-0.200.30.50.40.30.2-0.1-0.3-0.4-0.4-0.3-0.3-0.10.1

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.
Link to Loop

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.