Monday, August26, 2019 L-36.com


Marine Weather and Tides
Salisbury, MA

Version 3.4
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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 6:00AMSunset 7:30PM Monday August 26, 2019 3:17 AM EDT (07:17 UTC) Moonrise 1:19AMMoonset 4:53PM Illumination 19% Phase: Waning Crescent; Moon at 25 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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ANZ251 Massachusetts Bay And Ipswich Bay- 116 Am Edt Mon Aug 26 2019
Rest of tonight..NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft.
Mon..NE winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt in the afternoon. Seas 3 to 5 ft.
Mon night..E winds 5 to 10 kt, becoming sw after midnight. Seas 3 to 5 ft.
Tue..W winds around 5 kt, becoming S in the afternoon. Seas 3 to 5 ft. Patchy dense fog. Vsby 1 nm or less.
Tue night..S winds 5 to 10 kt. Seas 2 to 4 ft.
Wed..SE winds 5 to 10 kt. Seas 2 to 3 ft.
Wed night..E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 nm.
Thu..NE winds around 5 kt. Seas 2 to 3 ft. A chance of showers. Vsby 1 to 3 nm.
Thu through Fri..SW winds 5 to 10 kt. Seas 2 to 3 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 116 Am Edt Mon Aug 26 2019
Synopsis for massachusetts and rhode island coastal waters.. Northeast winds will be gradually shifting to the east by midweek. A tropical depression may form off the coast of florida early next week. This system may track close enough to affect the coastal waters with elevated seas by mid week. A cold front will approach the waters from the west on Thursday. 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 Salisbury, MA
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location: 42.81, -70.81     debug


Area Discussion for - Boston, MA
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Fxus61 kbox 260550
afdbox
area forecast discussion
national weather service boston norton ma
150 am edt Mon aug 26 2019

Synopsis
Patchy low clouds over ri and SE mass will diminish this
morning. High pressure over the maritimes will build over
southern new england today and maintain dry pleasant weather
through Tuesday. Possible showers Wednesday and Thursday ahead
of a cold front. Still keeping an eye on the track of a
potential tropical system offshore late this week, which could
produce high surf and dangerous rip currents along the immediate
shoreline.

Near term until 6 am this morning
Satellite imagery... Nighttime microphysics and shortwave
ir... Shows low clouds moving slowly southwest across SE mass and
ri. These will continue to move across this area overnight,
spreading for a time into northeast ct as well. A few
sprinkles drizzle possibly in this area, but mainly dry
conditions. A few changes were made to sky cover forecast to
expand this area through 2 am.

Clear and dry conditions across the remainder of southern new
england overnight.

Observed temperatures at 9 pm were in the mid 50s to mid 60s.

Expect further cooling overnight, with overnight mins in the mid
40s through the 50s. This is in line with the existing forecast,
so no changes planned to the forecast.

Short term 6 am this morning through 6 pm Tuesday
2 pm update...

Monday...

looking to clear out. A continued long fetch off across the
gulf of me, two things: 1.) sea-surface temperatures have
lowered a bit with the turbidity and upwelling of the waters,
and 2.) dry air advection will be quite strong and deeper within
the column compared to today and sinking. So an expectation
that low clouds will linger across new england during the
morning hours, gradually dissipating S W with drier, subsiding
pushing s. But not ruling out scattered to broken cloud decks
given boundary layer mixing of onshore cool, moist air. Expect
cloudy issues to linger especially s-coastal new england but
lesser drizzle issues. Late summer Sun still strong while mixing
out to h85 undergoing cold air advection, around +8c, another
day of 70s throughout the interior while 60s along the E se
shore.

Monday night...

becoming clear. Daytime heating concludes, dry air and high
pressure in place, looking at the boundary layer to decouple and
light winds to prevail over most of S new england albeit the
southeast. Warm air advection aloft, moisture is trapped beneath
the dry inversion just above the surface. Dense fog not out of
the question especially in areas of onshore flow and or higher
dewpoints (notably earlier in the day with the cross-over
threshold). Lean with cooler guidance and evaluate fog based on
winds (below 3 mph) along with temperature- dewpoint thresholds
of 2 degrees or less. This as a first guess, fog seemingly will
be more prevalent.

Long term Tuesday night through Sunday
Highlights...

* temperatures will remain below normal Tuesday, then will
moderate to near and above normal by late this week
* scattered showers will move across our region sometime late
Wednesday into Thursday ahead of a cold front.

Details...

Tuesday...

high pressure will remain across the region, or at least close
by. Dry weather and below normal temperatures expected to
continue. Onshore winds will keep the immediate coastal areas
even cooler.

Wednesday through Friday...

the biggest question remaining to be answered will be how close
a potential tropical system comes to southern new england during
this time. Latest model guidance has trended ever so slightly
west, but still well within the margin of error for a forecast
this far out. Still expecting a cold front to slowly approach
from the west late Wednesday into Thursday. At this point,
expecting scattered showers with the cold front. Instability is
too poor to warrant a mention of thunderstorms in the forecast.

Rainfall chances would be significantly higher if the ocean low
pressure comes even closer to our region. Time will tell. The
most likely impact from this coastal system would be a period
of rough surf along ocean-exposed beaches.

There may be another front that might approach late this week,
but timing is very much in question.

Near to above normal temperatures should prevail during this
period.

Saturday and Sunday...

high pressure should be in control. Current forecast is for dry
weather. Above normal temperatures Saturday, with below normal
temperatures Sunday as this high pressure moves in.

Aviation 06z 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.

Rest of tonight...

MVFR ceilings over ri and SE mass as an area of clouds drifts
southwest across that area. Expect these clouds to diminish
overnight. Patchy ifr fg possible where skc prevails in the ct
river valley of ma as well as a few regular fog spots.VFR clear
across the remainder of southern new england.

Today...

any remaining MVFR ceilings over ri should dissipate this
morning. Similarly, any patchy fog from overnight should
dissipate after sunrise. High pressure over new brunswick will
maintain east-northeast winds today with strongest winds gusting
20 to 25 kt across the south coast and islands. The high will
build south over our area late today, diminishing the wind.

Tonight...

high pressure over the region will bring clear skies and light
wind. Radiational cooling will bring areas of fog, especially
over the ct river valley in mass. And in the regular fog spots
of SRN new england. Ifr CIGS vsbys in any fog.

Tuesday...

high pressure continues to bring mostly clear skies and light
wind. Thin cirrus will move in from the west, most likely over
ct and western ma.

Kbos terminal...

expect few025 through mid morning as fragments move up from the
marine clouds across SE massachusetts. OtherwiseVFR clear with
a continued east-northeast wind up to 10 kt.

Kbdl terminal...

lingering 2500 ft bases should remain south east of kbdl this
morning before dissipating.VFR clear with a light ene wind.

Outlook Tuesday night through Friday ... Moderate confidence.

Tuesday night:VFR.

Wednesday: mainlyVFR, with local MVFR possible. Chance shra.

Wednesday night: mainlyVFR, with local ifr possible. Chance
shra.

Thursday: mainlyVFR, with local MVFR possible. Chance shra.

Thursday night through Friday:VFR.

Marine
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Tuesday ... High confidence.

E NE winds persist through Tuesday morning. That will contribute
to an E swell and wave heights around 4 to 6 feet. Strong gusts
will taper slightly overnight, and then pick back up Monday
with gusts up to 25 kts. As high pressure builds from the n
into midweek, will see both winds and seas begin to subside.

Small craft advisory headlines continue for a majority of the
waters.

Outlook Tuesday night through Friday ... Moderate confidence.

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

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

Wednesday: winds less than 25 kt. Areas of seas approaching
5 ft. Chance of rain showers.

Wednesday night: winds less than 25 kt. Areas of seas
approaching 5 ft. Chance of rain showers. Local visibility 1 to
3 nm.

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

Thursday night through Friday: winds less than 25 kt. Seas
locally approaching 5 ft.

Box watches warnings advisories
Ct... None.

Ma... None.

Ri... None.

Marine... Small craft advisory until 11 am edt this morning for
anz232>234.

Small craft advisory until 5 am edt early this morning for
anz235-237.

Small craft advisory until 8 pm edt this evening for anz250-
254.

Small craft advisory until 6 am edt Tuesday for anz255-256.

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
IOSN3 - Isle of Shoals, NH 15 mi78 min NNE 13 G 14 61°F 1024.7 hPa (-0.9)55°F
BGXN3 - Great Bay Reserve, NH 17 mi93 min Calm 48°F 1026 hPa48°F
44073 20 mi134 min NNE 12 G 14 65°F
44029 - Buoy A0102 - Mass. Bay/Stellwagen 24 mi74 min NE 12 G 16 64°F 5 ft1024.5 hPa
44013 - BOSTON 16 NM East of Boston, MA 33 mi28 min 64°F 65°F4 ft1023.7 hPa (-0.3)
44030 - Buoy B0102 - Western Maine Shelf 33 mi74 min NNE 12 G 14 60°F 65°F4 ft1025.7 hPa
44098 - Jeffrey's Ledge, NH (160) 34 mi40 min 67°F4 ft
BHBM3 - 8443970 - Boston, MA 34 mi48 min 57°F 1025.3 hPa
WELM1 - 8419317 - Wells, ME 38 mi48 min N 4.1 G 7 52°F 67°F1025.9 hPa
WEXM1 - Wells Reserve, ME 39 mi78 min NNW 4.1 51°F 49°F

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lawrence Municipal Airport, MA17 mi4.4 hrsN 010.00 miFair52°F48°F89%1026.7 hPa
Beverly, Beverly Municipal Airport, MA17 mi2.4 hrsN 510.00 miFair51°F48°F89%1024.8 hPa
Pease Air Force Base / Portsmouth, NH19 mi4.4 hrsN 710.00 miFair56°F50°F84%1026.3 hPa

Link to 5 minute data for KBVY

Wind History from BVY (wind in knots)
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Last 24hrN6--N5N3--N4N8--N14
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1 day ago--N5N5N6NW6N6N5N6NE10NE13
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NE11NE8NE9E7E8E8E7NE6E4CalmCalm----N4
2 days ago----------W5NW6--NW8N9NW7NW9NW9NW10NW5NW7NW5NW4NW6NW5NW5------

Tide / Current Tables for Merrimack River Entrance, Massachusetts (2)
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Merrimack River Entrance
Click for Map
Mon -- 01:18 AM EDT     Moonrise
Mon -- 01:55 AM EDT     0.63 feet Low Tide
Mon -- 06:01 AM EDT     Sunrise
Mon -- 08:06 AM EDT     7.56 feet High Tide
Mon -- 02:07 PM EDT     1.09 feet Low Tide
Mon -- 04:52 PM EDT     Moonset
Mon -- 07:28 PM EDT     Sunset
Mon -- 08:21 PM EDT     8.92 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.210.61.12.345.87.17.67.36.34.731.71.11.42.64.46.488.98.77.86.1

Tide / Current Tables for Newburyport (Merrimack River), Massachusetts Current
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Newburyport (Merrimack River)
Click for Map
Mon -- 01:18 AM EDT     Moonrise
Mon -- 02:58 AM EDT     0.00 knots Slack
Mon -- 06:01 AM EDT     Sunrise
Mon -- 06:51 AM EDT     1.41 knots Max Flood
Mon -- 09:02 AM EDT     -0.00 knots Slack
Mon -- 11:27 AM EDT     -1.29 knots Max Ebb
Mon -- 03:13 PM EDT     0.00 knots Slack
Mon -- 04:53 PM EDT     Moonset
Mon -- 07:10 PM EDT     1.47 knots Max Flood
Mon -- 07:28 PM EDT     Sunset
Mon -- 09:23 PM EDT     -0.00 knots Slack
Mon -- 11:58 PM EDT     -1.52 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.3-0.9-0.600.91.21.31.410-0.8-1.2-1.2-0.9-0.6-0.20.71.31.41.51.30.4-0.6-1.3

Weather Map and Satellite Images
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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.
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Wind Forecast for Boston, MA (3,6,7,8)
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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.