Sunday, August18, 2019 L-36.com


Marine Weather and Tides
The Pinehills, MA

Version 3.4
NOTICE
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 5:52AMSunset 7:41PM Sunday August 18, 2019 2:33 AM EDT (06:33 UTC) Moonrise 9:29PMMoonset 8:37AM Illumination 93% Phase: Waning Gibbous; Moon at 17 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
ANZ231 Cape Cod Bay- 116 Am Edt Sun Aug 18 2019
Rest of tonight..S winds around 5 kt. Seas 1 foot or less. Areas of fog. Vsby 1 to 3 nm.
Sun..SW winds around 5 kt, becoming S in the afternoon. Seas 1 foot or less. Areas of fog. Vsby 1 nm or less.
Sun night..S winds 5 to 10 kt. Seas 1 foot or less. Patchy fog. Vsby 1 nm or less.
Mon..S winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby 1 to 3 nm.
Mon night..SW winds 5 to 10 kt. Seas around 2 ft.
Tue and Tue night..S winds 5 to 10 kt. Seas 1 foot or less. A chance of showers. Vsby 1 to 3 nm.
Wed through Thu..W winds 10 to 15 kt. Seas around 2 ft. A chance of showers. 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 Sun Aug 18 2019
Synopsis for massachusetts and rhode island coastal waters.. A weak ridge of high pressure across the region will result in light east to southeast into early Sunday. Most of Monday will see south to southwest winds ahead of an approaching cold front. The cold front will cross the waters Monday night to bring northwest winds for Tuesday. 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 The Pinehills, MA
   Hourly   EDIT   Help
location: 41.92, -70.56     debug


Area Discussion for - Boston, MA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 kbox 180448
afdbox
area forecast discussion
national weather service boston norton ma
1248 am edt Sun aug 18 2019

Synopsis
Very warm and humid conditions Sunday with an increasing risk
for some showers and thunderstorms. These conditions continue
through midweek, when a cold front will sweep through. Drier and
not as warm late next week.

Near term until 6 am this morning
1 am update:
showers storms have subsided but still enough MUCAPE to allow
for leftover showers in parts of ct and NE ma, which should
continue to diminish overnight.

Plenty of low level moisture combined with light winds has
allowed areas of dense fog to develop, mainly in parts of south
coastal ri and around the islands. May need to issue a dense fog
advisory with next update around 4 am. So far webcams show it's
not too widespread but will need to keep an eye on that.

Short term 6 am this morning through 6 pm Monday
Sunday...

warm sector airmass across sne with boundary layer winds
turning sw. This will result in low clouds and patchy fog
burning off and giving way to at least partial sunshine. 850 mb
temps 17-18c which normally supports temps into the lower 90s,
but mixing depth may fall short of 850 mb so will go a bit
cooler with highs mid upper 80s with a few locations in ct
valley possibly reaching 90. Cooler along the coast where sea
breezes develop. Quite humid airmass with dewpoints into the
lower 70s.

Moderate instability develops in the afternoon with capes
1500-2000 j kg. While synoptic forcing is limited, enough
instability to support scattered showers t-storms in the
afternoon, mainly interior where best instability is located.

Sunday night...

expect scattered showers t-storms to linger into the evening as
decent instability persists within a well defined theta-e ridge.

Then convection diminishing overnight. Another warm and humid
night with lows upper 60s to lower 70s. Patchy low clouds and
fog may redevelop.

Long term Monday night through Saturday
Guidance shows ridging over the southern usa, shifting to the SW us
during wed-fri as a hudson bay trough deepens and extends southward
into the eastern u.S. Sne remains under the influence of decent mid-
level flow, steering a series of shortwaves in our direction thru
mid-week. Exact timing is uncertain on the shortwaves passing thru,
but with increased moisture, each will have the ability to produce
some showers and possibly some thunderstorms to our area.

A cold front pushes south towards into our area Monday
night Tuesday. However there is model uncertainty on whether or not
the front pushes south of sne, at least for a period of time, or if
it stalls over our area. If the 12z NAM solution pans out, we could
get a brief reprieve on shower potential during Tuesday. However
because of the uncertainty, we will have a continued risk for
showers and thunderstorms during this timeframe. The front should
move back north of our area as a warm front during Tuesday
night Wednesday, which will keep or bring back an unstable airmass
over our area.

Then as the upper trough deepens and pushes short wave energy thru
the eastern great lakes region, a cold front will pass thru our
area. The cold frontal passage should pass thru our area during thu.

The approach and passage of this front will likely bring our
greatest chance for showers and thunderstorms for the week.

High pressure builds in from the west for fri-sat. The base of the
upper trough may lag behind, which could keep a cold pool over new
england on Friday. With much drier air in place, model QPF is
lacking, and for now will continue with this dry forecast. By
Saturday the upper trough should be to our east, with dry conditions
prevailing.

Until the cold front pushes east of our region on thu, it will be
very warm and humid. Dewpoints will remain in the mid 60s to low
70s, with relief from the humidity thu-fri. With temperatures rising
to around 90 degrees early next week, we may need heat advisories
for a time.

Aviation 06z Sunday through Thursday
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Monday ... Moderate confidence.

Widespread ifr lifr through sunrise in low clouds and fog.

Conditions improve toVFR 12z-15z except closer to 18z on cape
cod and islands. Scattered showers and thunderstorms develop
during afternoon, mainly along and NW of a line from bdl-orh-
lwm.

Return to ifr lifr in low clouds and fog tonight, especially in
ri and E ma, as showers storms subside. Repeat for Monday with
improvement toVFR by 15z-18z then another round of scattered
showers and thunderstorms.

Kbos terminal... Moderate confidence in taf. Conditions should
lower to lifr for a few hours before sunrise.

Kbdl terminal... Moderate confidence in taf. Timing of ifr
conditions may be too soon.

Outlook Monday night through Thursday ... Moderate confidence.

Monday night:VFR. Slight chance shra, isolated tsra.

Tuesday:VFR. Chance shra, slight chance tsra.

Tuesday night: mainlyVFR, with local ifr possible. Chance
shra, slight chance tsra, patchy br.

Wednesday:VFR. Chance shra, slight chance tsra.

Wednesday night: mainlyVFR, with local ifr possible. Chance
shra, slight chance tsra, patchy br.

Thursday: mainlyVFR, with local MVFR possible. Chance shra,
slight chance tsra.

Marine
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Monday ... High confidence.

Primary marine concern will be areas of fog and poor vsbys
tonight into Sun morning and and possibly another round sun
night. Generally light winds and seas through the period.

Outlook Monday night through Thursday ... Moderate confidence.

Monday night: winds less than 25 kt. Areas of seas approaching
5 ft. Slight chance of rain showers, isolated thunderstorms.

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

Slight chance of rain showers, isolated thunderstorms.

Tuesday night: winds less than 25 kt. Seas locally approaching
5 ft. Chance of rain showers, slight chance of thunderstorms.

Wednesday through Wednesday night: winds less than 25 kt. Areas
of seas approaching 5 ft. Chance of rain showers, slight chance
of thunderstorms.

Thursday: winds less than 25 kt. Local rough seas. Chance of
rain showers, slight chance of thunderstorms.

Box watches warnings advisories
Ct... None.

Ma... None.

Ri... None.

Marine... None.

Synopsis... Kjc nmb
near term... Jwd
short term... Kjc
long term... Nmb
aviation... Jwd
marine... Kjc nmb


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
44090 13 mi33 min 69°F
WAXM3 - Waquoit Bay Reserve, MA 23 mi108 min E 1 71°F 1016 hPa71°F
BZBM3 - 8447930 - Woods Hole, MA 28 mi51 min 70°F 69°F1015.6 hPa
44013 - BOSTON 16 NM East of Boston, MA 30 mi43 min NW 3.9 G 3.9 67°F 68°F2 ft1014.7 hPa (-0.4)67°F
44018 - SE Cape Cod 30NM East of Nantucket, MA 30 mi43 min E 3.9 G 5.8 66°F 2 ft1015.5 hPa (-1.0)66°F
44020 - NANTUCKET SOUND 33 mi33 min SE 3.9 G 5.8 70°F 1015.5 hPa (-0.3)69°F
FRVM3 - 8447386 - Fall River, MA 35 mi51 min 73°F 77°F1016.3 hPa
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 36 mi45 min SW 2.9 G 4.1 73°F 1015.9 hPa
FRXM3 36 mi51 min 73°F 71°F
BHBM3 - 8443970 - Boston, MA 40 mi51 min 69°F 1015.9 hPa
44029 - Buoy A0102 - Mass. Bay/Stellwagen 42 mi89 min W 5.8 G 9.7 68°F 65°F2 ft1015.7 hPa
CPTR1 - 8452944 - Conimicut Light, RI 44 mi45 min S 8 G 8 71°F 75°F1015.7 hPa
FOXR1 - 8454000 - Providence, RI 45 mi45 min WSW 2.9 G 5.1 73°F 75°F1015.6 hPa
PRUR1 45 mi45 min 71°F 71°F
NAXR1 - Narragansett Bay Reserve, RI 46 mi108 min WSW 2.9 72°F 1016 hPa71°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 46 mi45 min SSW 1.9 G 5.1 71°F 1016.4 hPa

Wind History for Borden Flats Light at Fall River, MA
(wind in knots)    EDIT      (on/off)   Help
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
12
AM
1
AM
2
AM
Last
24hr
SE3
SE5
SE2
NE4
SE6
E5
SE3
SE4
E7
SE4
G7
SE7
SW3
SE5
E7
SE7
G10
SE5
G8
E9
G12
SE9
SE5
SE9
G12
SE6
SE8
SW5
SW4
1 day
ago
NE6
NE5
NE5
NE4
NE7
NE6
NE5
NE5
N4
E5
E6
G9
SW4
S9
E10
S12
G15
S10
G13
S8
S7
G10
SE5
SE6
SE4
SE5
SE4
SE5
2 days
ago
NE6
NE7
NE8
E7
NE9
NE5
NE7
N7
NE9
NE7
G10
NE6
G10
SE6
E8
G11
SE8
SE10
G14
SE10
G14
SE5
E4
G8
NE5
NE3
NE3
NE5

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Plymouth, Plymouth Municipal Airport, MA9 mi1.7 hrsSE 51.50 miFog/Mist69°F68°F96%1015.7 hPa
Marshfield Airport, MA14 mi78 minN 010.00 miOvercast70°F69°F100%1015.6 hPa
Otis Air National Guard Base, MA18 mi1.8 hrsESE 51.50 miFog/Mist72°F69°F94%1016.3 hPa
Provincetown Municipal Airport, MA20 mi97 minS 410.00 miMostly Cloudy70°F69°F97%1016.1 hPa
Hyannis, Barnstable Municipal-Boardman Airport, MA22 mi97 minN 01.75 miFog/Mist71°F69°F94%1015.8 hPa
Taunton, Taunton Municipal Airport, MA24 mi1.7 hrsN 09.00 miOvercast73°F70°F90%1015.6 hPa

Link to 5 minute data for KPYM

Wind History from PYM (wind in knots)
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
12
AM
1
AM
2
AM
Last 24hrSE4E4SE3CalmE5SE5SE55Calm4S6----E35SE7SE4E4CalmCalmCalmCalmSE5Calm
1 day agoCalmCalmNW3CalmCalmNE7NE4NE4NE6NE8NE8N8NE11E7E10E8SE5S5SE3SE4E3CalmCalmSE4
2 days agoN3NE3CalmNE5NE3NE5N8E6E9NE8NE9NE9NE7NE9NE9NE4E7E4E3E3CalmCalmCalmCalm

Tide / Current Tables for Plymouth, Massachusetts
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Plymouth
Click for Map
Sun -- 01:45 AM EDT     9.99 feet High Tide
Sun -- 05:53 AM EDT     Sunrise
Sun -- 08:13 AM EDT     0.25 feet Low Tide
Sun -- 08:37 AM EDT     Moonset
Sun -- 02:11 PM EDT     9.33 feet High Tide
Sun -- 07:39 PM EDT     Sunset
Sun -- 08:27 PM EDT     0.79 feet Low Tide
Sun -- 09:29 PM EDT     Moonrise
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
7.99.69.997.45.43.21.30.30.62.14.16.48.49.38.97.65.942.10.912.34.2

Tide / Current Tables for Cape Cod Canal, Massachusetts Current
   EDIT      (on/off)   Help   One Week of Data
Cape Cod Canal
Click for Map
Sun -- 02:50 AM EDT     -4.52 knots Max Ebb
Sun -- 05:53 AM EDT     Sunrise
Sun -- 05:59 AM EDT     0.03 knots Slack
Sun -- 08:37 AM EDT     Moonset
Sun -- 09:02 AM EDT     4.23 knots Max Flood
Sun -- 12:29 PM EDT     -0.03 knots Slack
Sun -- 03:14 PM EDT     -4.24 knots Max Ebb
Sun -- 06:14 PM EDT     0.19 knots Slack
Sun -- 07:38 PM EDT     Sunset
Sun -- 09:11 PM EDT     4.04 knots Max Flood
Sun -- 09:28 PM EDT     Moonrise
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
-1-3.3-4.3-4.5-4.1-30.133.94.243.42.1-2.2-3.7-4.2-4-3.2-1.42.53.643.93.3

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 (2,6,7,8)
      (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.