Friday, November16, 2018 L-36.com


Marine Weather and Tides
Revere, 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 4:22PM Friday November 16, 2018 11:18 AM EST (16:18 UTC) Moonrise 2:25PMMoonset 12:21AM Illumination 62% Phase: Waxing Gibbous; Moon at 9 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- 934 Am Est Fri Nov 16 2018
.small craft advisory in effect until 3 pm est this afternoon...
This afternoon..NE winds 20 to 25 kt, becoming nw. Gusts up to 35 kt. Waves around 2 ft, except 10 to 11 ft at the outer harbor entrance. Rain early, then a chance of rain.
Tonight..W winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. At the outer harbor entrance, waves around 8 ft, subsiding to 4 ft after midnight.
Sat..W winds around 10 kt with gusts up to 20 kt. Waves around 2 ft.
Sat night..W winds 5 to 10 kt. Waves around 2 ft.
Sun..NW winds 5 to 10 kt. Waves 1 foot or less.
Sun night..E winds around 5 kt, becoming S after midnight. Waves 1 foot or less. A chance of showers. Vsby 1 to 3 nm after midnight.
Mon..W winds 5 to 10 kt. Waves 1 foot or less. A chance of showers in the morning.
Mon night..NW winds around 10 kt. Waves around 2 ft.
Tue..NW winds around 10 kt. Waves 1 foot or less.
Tue night..NW winds around 10 kt. Gusts up to 20 kt after midnight. Waves 1 foot or less, then around 2 ft 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 934 Am Est Fri Nov 16 2018
Synopsis for massachusetts and rhode island coastal waters.. A coastal storm moves moves across southeast new england by midday and then moves off to the maritimes. This will bring strong winds to the waters this morning and midday. High pressure returns for the weekend. A cold front passes across the waters on Sunday. 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 Revere, MA
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location: 42.44, -71.01     debug


Area Discussion for - Boston, MA
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Fxus61 kbox 161458
afdbox
area forecast discussion
national weather service boston norton ma
958 am est Fri nov 16 2018

Synopsis
Rain will come to an end through early afternoon... But will
change to a brief burst of snow in some locales across the
interior before ending. Dry and chilly weather move in this
afternoon and remain through the weekend as high pressure builds
in. Weak low pressure may bring patchy light rain and or snow
late Sunday into Monday. Another shot of colder air moves in by
the middle of next week, though it should be mainly dry.

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

associated low pressure system and its closed mid level
circulation were tracking across southeast new england this
morning. Wrap around precipitation in the form of rain was
impacting much of the region... But colder temperatures aloft
were working back into portions of the interior. The result was
rain was changing back to snow in some locations. Although the
heavier bands were somewhat disorganized... Some locales mainly
across interior ma and ct may see a brief burst of moderate to
heavy snow. An additional one half to two inches of snow may
impact portions of the region through lunchtime. This may result
in some roads becoming briefly slippery and we did issue a
special weather statement. Across eastern ma and ri... Ptype
will mainly be rain but some wet flakes may mix in at the end.

All the precipitation should pretty much be over by early
afternoon as the low departs. Clouds will hang tough through
most of the afternoon with gusty northwest winds. Temperatures
generally be in the 30s.

We canceled most of the wind headlines... Except for the
cape nantucket where they may flirt with criteria through lunch
time. Also... Left the winter weather advisory for the berks but
maybe able to cancel it a few hours early based on trends.

Short term 6 pm this evening through Saturday night
A broad upper trough lingers over hudson bay through Saturday
night. Several shortwaves move through this flow and over
southern new england. 500-mb heights remain near to below
normal through the period. Normal values are 557 to 563
decameters, while forecast values are in the 540s today and
550-555 Saturday.

One shortwave moves across southern new england early tonight.

This may be enough to generate scattered snow showers,
especially across northern massachusetts. These snow showers
should move out of state before midnight.

Cold advection will maintain some level of mixing tonight and
Saturday. Low level winds will be 30-35 kts tonight and 20-25
kts Saturday. Expect most or all of this wind to mix to the
surface in gusts tonight and Saturday.

Moisture cross sections show diminishing moisture aloft on
Saturday. This suggests a dry day, allowing for sunshine.

Temperatures upstream are in the upper 20s and lower 30s... This
should suffice for tonight's min temps. Mixing on Saturday
should reach 925 mb, where temps will support MAX surface temps
in the 40s. Min temps farther upstream point to Saturday night
mins in the mid 20s to lower 30s.

Long term Sunday through Thursday
Highlights...

* no changes to Thursday afternoon long term forecast for this
period.

* below average temperatures persist
* weak low pressure brings periods of rain and snow late Sun into
mon
* dry and cold mid week
overview...

the extended forecast features a few high pressure systems sandwiched
around a relatively weak low pressure disturbance or two in the
Sunday night Monday time frame which will bring the return of
both rain and snow chances. Model consensus is good that the
flow pattern becomes much less amplified and more zonal behind
Friday's system, persisting through late weekend. By then a mid
level shortwave digs south, crossing the region Sunday Monday
which will generate a weak surface low in the vicinity of sne
with another round of light snow rain. Beyond this, models
diverge a bit, with the GFS keeping things unsettled into
Tuesday before the high returns, while the euro returns a dry
high pressure more quickly. Either way, by mid to late week
heights begin to rise ever so slightly and a cold and dry
pattern returns.

Details...

Sunday and Monday...

Sunday high pressure sits over the northeast with light winds and
highs in the upper 30s-40s under a cold airmass; should be a mostly
dry day before snow rain chances increase from the west by the
evening overnight hours. The upper trough over canada digs south
helping to generate a surface low in the vicinity of sne which
brings weak fronts through in quick succession Sunday
night Monday. Still expecting mainly snow outside the coastal
plain, with rain along the coasts. QPF amounts are lackluster; a
few hundredths to a few tenths of liquid equivalent.

Tuesday through Thursday...

after the system exits zonal flow returns at the base of a large 500
mb trough over the eastern us Tuesday early Wednesday. Some
disagreement on slight precip chances Tuesday, but overall looks
dry; maybe some showers over the high terrain. By mid week a
surface high returns bringing dry weather. Given the overall
weak longwave trough pattern, cold temperatures will persist
with highs in the 30s and low 40s.

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

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Saturday night ...

rest of today... Moderate to high confidence. Ifr to low end
MVFR conditions in rain and some interior snow should come to an
end by early afternoon. MVFR CIGS will likely persist as winds
shift to the northwest with gusts of 20 to 30 knots.

Tonight...VFR. Gusty west winds 20 to 25 kt.

Saturday...VFR. Gusty west winds near 20 kt, diminishing
Saturday night.

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

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

Outlook Sunday through Tuesday ...

Sunday: mainlyVFR, with local ifr possible. Slight chance sn.

Sunday night: mainly ifr, with local MVFR possible. Chance sn,
slight chance ra.

Monday: MVFR ifr conditions possible. Breezy. Chance sn, slight
chance ra.

Marine
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Saturday night ... High confidence.

Today... We downgraded the remaining storm headlines to gales
with strong small craft across boston harbor narr bay. Seas
remain quite high though as strong easterly flow as buoy 44013
was still at 18 feet. Seas will gradually lower as winds shift
to the west... But they will remain quite high.

Tonight... West winds at 20 kt gusting to 30 kt. Seas 8 to 12
feet slowly subsiding during the night.

Saturday... West winds gusting 20 to 25 kt. Seas slowly
diminishing, but the outer waters will remain with 5 foot seas.

Saturday night... Winds less than 25 kt. Seas diminishing below
5 feet on the outer waters.

Outlook Sunday through Tuesday ...

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

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

Local visibility 1 to 3 nm.

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

Slight chance of rain.

Box watches warnings advisories
Ct... None.

Ma... Wind advisory until noon est today for maz022-024.

Winter weather advisory until 3 pm est this afternoon for
maz002-008-009.

Ri... None.

Marine... Gale warning until 3 pm est this afternoon for anz231>235-237-
250-251-254>256.

Small craft advisory until 3 pm est this afternoon for anz230-
236.

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BHBM3 - 8443970 - Boston, MA 6 mi30 min 37°F 996.5 hPa
44013 - BOSTON 16 NM East of Boston, MA 20 mi28 min N 33 G 41 44°F 52°F15 ft992.6 hPa (-4.6)43°F
44029 - Buoy A0102 - Mass. Bay/Stellwagen 24 mi74 min NNE 27 G 35 45°F 50°F993.8 hPa
IOSN3 - Isle of Shoals, NH 42 mi78 min N 31 G 35 31°F 998.2 hPa (-3.7)31°F
BGXN3 - Great Bay Reserve, NH 44 mi93 min NNE 7 30°F 29°F
PVDR1 49 mi30 min NNW 13 G 22 43°F 996.1 hPa42°F
44018 - SE Cape Cod 30NM East of Nantucket, MA 49 mi28 min SW 18 G 23 51°F 16 ft989.9 hPa (-6.2)49°F

Wind History for Providence, RI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Boston, Logan International Airport, MA4 mi24 minNNW 15 G 279.00 miLight Rain38°F35°F89%996.5 hPa
Beverly, Beverly Municipal Airport, MA11 mi25 minN 16 G 2410.00 miLight Rain35°F30°F85%996.3 hPa
Laurence G Hanscom Field Airport, MA15 mi22 minNNW 16 G 2610.00 miLight Rain33°F32°F96%999.3 hPa
East Milton, MA17 mi22 minNNW 16 G 33 mi34°F34°F100%997.1 hPa
Norwood, Norwood Memorial Airport, MA19 mi25 minNNW 15 G 229.00 miOvercast39°F35°F86%996.9 hPa
Lawrence Municipal Airport, MA21 mi24 minN 15 G 2610.00 miOvercast33°F28°F82%999.3 hPa

Wind History from BOS (wind in knots)
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Last 24hrN3CalmE44E7N11N8E11E10SE11E14E20E21
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1 day agoNW21
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N13N10N10N9NW9
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NW6NW11NW13NW10NW15NW9NW9NW5N6CalmN3Calm
2 days agoE7N6NW16
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Tide / Current Tables for Lynn Harbor, Massachusetts
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Lynn Harbor
Click for Map
Fri -- 05:40 AM EST     8.19 feet High Tide
Fri -- 06:36 AM EST     Sunrise
Fri -- 11:35 AM EST     2.04 feet Low Tide
Fri -- 01:24 PM EST     Moonrise
Fri -- 04:20 PM EST     Sunset
Fri -- 05:53 PM EST     8.52 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.62.53.85.36.988.17.56.34.93.42.22.12.945.46.98.18.586.85.33.62.1

Tide / Current Tables for Boston Harbor, Massachusetts Current
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Boston Harbor
Click for Map
Fri -- 02:43 AM EST     0.92 knots Max Flood
Fri -- 05:14 AM EST     -0.00 knots Slack
Fri -- 06:35 AM EST     Sunrise
Fri -- 09:48 AM EST     -0.98 knots Max Ebb
Fri -- 11:41 AM EST     0.00 knots Slack
Fri -- 01:24 PM EST     Moonrise
Fri -- 03:04 PM EST     0.88 knots Max Flood
Fri -- 04:20 PM EST     Sunset
Fri -- 05:27 PM EST     -0.00 knots Slack
Fri -- 10:10 PM EST     -1.07 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.50.80.90.90.60.1-0.3-0.5-0.7-0.9-1-0.60.20.70.80.90.70.2-0.2-0.5-0.8-0.9-1.1-0.9

Weather Map and Satellite Images
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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.
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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.