Monday, June18, 2018 L-36.com


Marine Weather and Tides
Dover, MA

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 5:06AMSunset 8:26PM Monday June 18, 2018 12:11 AM EDT (04:11 UTC) Moonrise 10:38AMMoonset 12:00AM Illumination 22% Phase: Waxing Crescent; Moon at 5 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- 929 Pm Edt Sun Jun 17 2018
.small craft advisory in effect from Monday morning through Monday evening...
Overnight..S winds 5 to 10 kt. Waves 1 foot or less.
Mon..SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Gusts up to 25 kt. Waves around 2 ft.
Mon night..SW winds 10 to 15 kt with gusts up to 25 kt, becoming W 5 to 10 kt after midnight. Waves around 2 ft. A chance of showers and tstms. Some tstms may produce heavy rainfall.
Tue..N winds 5 to 10 kt. Waves 1 foot or less.
Tue night..N winds around 5 kt, becoming W around 5 kt after midnight. Waves 1 foot or less.
Wed..SW winds around 5 kt. Waves 1 foot or less.
Wed night..SW winds around 5 kt, becoming nw after midnight. Waves 1 foot or less.
Thu..NE winds around 5 kt. Waves 1 foot or less.
Thu night..SW winds around 5 kt. Waves 1 foot or less.
Fri..E winds around 5 kt. Waves 1 foot or less.
Fri night..SW winds 5 to 10 kt. Waves 1 foot or less. Winds and waves higher in and near tstms. 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 929 Pm Edt Sun Jun 17 2018
Synopsis for massachusetts and rhode island coastal waters.. High pres will shift fully to the east on Mon. A cold front will approach the waters from the northwest Mon evening, crossing the waters by Tue morning. Fair weather high pres returns Tue through at least Thu. 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 Dover, MA
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location: 42.27, -71.27     debug


Area Discussion for - Boston, MA
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Fxus61 kbox 180138
afdbox
area forecast discussion
national weather service boston norton ma
938 pm edt Sun jun 17 2018

Synopsis
Very hot and humid conditions will impact the interior Monday
with record high temperatures. An approaching cold front will
likely trigger a few thunderstorms Monday afternoon and Monday
night, and some of the stronger storms could produce locally
heavy rainfall and gusty winds. Behind the departing cold
front, less humid and not as hot Tuesday and Wednesday then a
slight cooling trend for the end of the week.

Near term until 6 am Monday morning
935 pm update...

quiet weather continues overnight with lightly southerly flow
allowing higher dewpoint air to advect northward.

Therefore... Despite just some scattered high clouds, low temps
will only fall into the lower to middle 60s in most locations.

Not too concerned about low cloud fog potential... But can not
rule out the low risk for a few patches near the south coast
toward daybreak as higher dewpoint air continues to work into
the region.

Short term 6 am Monday morning through Monday night
Monday...

anomalously warm airmass will advect into sne along northern
periphery of upper level ridge. 925 mb temps increase to 26-27c
across interior ma and with W SW boundary layer flow, this would
support highs into the mid upper 90s in the merrimack and ct
valleys, with hottest temps in NE ma. SW flow will keep ri and
se ma cooler in the mid 80s to 90 degrees, with upper 70s along
the south coast beaches and islands. With dewpoints climbing
into the upper 60s to near 70 degrees, heat indices will likely
reach 100 degrees for a few hours in the merrimack and ct
valleys where heat advisories will be issued.

The increasing heat and humidity will result in sbcapes
increasing to 1000-2000 j kg across the interior in the
afternoon. In fact, href probs indicating 60-70 percent probs
of 2000 j kg. Forcing for ascent is limited but this instability
supports at least widely scattered t-storms developing in the
afternoon. 0-6km shear increases to 30-35 kt so potential for a
few strong storms and can't rule out severe weather, but meager
mid level lapse rates will limit robust updrafts and likely
reduce severe threat. Pwats increasing over 2 inches so heavy
rainfall will be the primary threat, but a few of the stronger
storms could produce strong wind gusts. The main threat for
strong to severe storms will be across interior ma and northern
ct.

Monday night...

pronounced low level theta-e ridge axis with pwats up to +3 sd
sets up across sne ahead of southward moving cold front. Due to
meager mid level lapse rates, sfc based instability will
diminish but there is some elevated instability and forcing for
ascent increases ahead of the front. This will lead to risk for
showers and t-storms continuing into Mon evening and possibly
overnight based on timing of the front which doesn't reach the
south coast until Tue morning. Given the anomalous pwats, heavy
rainfall will be the main concern. It will be a warm and humid
night with dewpoints near 70, but drier air will be moving into
northern ma toward daybreak behind the front. Areas of fog,
locally dense, will likely develop near the south coast and
cape islands.

Long term Tuesday through Sunday
Highlights...

* dry, less humid Tuesday afternoon into Saturday
* near normal temperatures Thursday and Friday
* potential for some showers on Sunday
overview...

12z model guidance is in agreement with a strong high pressure
southern california with a large mid-level trough over quebec.

Southern new england will be on the edge of the upper level trough
and upstream of the mean axis. This will favor subsidence and dry
weather through this upcoming week. However, cannot rule out the
potential for a few showers, but very low confidence as ensembles
keep the region mostly dry. Pattern turns a bit more active Sunday
into early next week with a few disturbances moving in the flow.

Tuesday into Sunday...

a few lingering showers on Tuesday as a cold front sweeps through
the region. However, dewpoints and k values will be quickly dropping
in the late morning into afternoon and thus expect clearing skies
and dry weather. Otherwise, high pressure will dominate the area
late Tuesday into Wednesday as temperatures remain above normal.

Passing cold front on Thursday will be quite dry as moisture is
marginal. Cooler air will filter in behind this front which will
drop temperatures on Thursday into Friday to be closer to normal.

High pressure will dominate again on Friday lasting into the first
half of the weekend before precip begins to push into the region
Sunday Monday.

Aviation 02z Monday through Friday
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Monday night ...

through tonight... High confidence.VFR.

Monday... High confidence.

MainlyVFR, but isold to sct showers t-storms likely developing
in the afternoon in the interior. Any stronger storms will be
accompanied by brief MVFR ifr conditions along with heavy
downpours and gusty wind. SW gusts around 25 kt developing,
especially eastern ma and ri.

Monday night... Moderate confidence.

Scattered showers t-storms with brief MVFR ifr and heavy
downpours in the stronger storms, especially in the evening.

Otherwise, stratus and fog will likely develop over the islands
and south coastal regions with ifr lifr conditions.

Kbos terminal... High confidence in taf.

Kbdl terminal... High confidence in taf.

Outlook Tuesday through Friday ...

Tuesday:VFR. Breezy.

Tuesday 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 Monday night ...

tonight... High confidence. Winds and seas below sca.

Monday... High confidence. Increasing SW flow with gusts to 25 kt
developing over nearshore waters, including boston harbor and
narragansett bay. Persistent flow will also lead to building
seas above 5 ft by evening. Small craft advisories have been
issued.

Monday night... High confidence. SW gusts 20-25 kt diminishing
overnight, but 5+ ft seas will persist over outer waters. Areas
of fog developing will result in poor vsbys, especially over
south coastal waters.

Outlook Tuesday through Friday ...

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

Tuesday night through Friday: winds less than 25 kt.

Climate
Here are the record and forecast highs for Monday june 18...

bos ... 94 (1907 & 1929) ... Forecast high 94
bdl ... 95 (1957 & 1994) ... Forecast high 95
pvd ... 94 (1929) ... Forecast high 87
orh ... 93 (1907 & 1929) ... Forecast high 90

Box watches warnings advisories
Ct... Heat advisory from 1 pm to 7 pm edt Monday for ctz002.

Air quality ALERT from 11 am to 10 pm edt Monday for
ctz002>004.

Ma... Air quality ALERT until 11 pm edt this evening for maz020>024.

Air quality ALERT from 11 am to 11 pm edt Monday for
maz003>007-009>016-026.

Heat advisory from 1 pm to 7 pm edt Monday for maz005-006-011-
014-026.

Ri... Air quality ALERT until 11 pm edt this evening for riz001>008.

Marine... Small craft advisory from 2 pm to 10 pm edt Monday for
anz232>235-237.

Small craft advisory from 11 am to 8 pm edt Monday for anz230-
236.

Small craft advisory from 2 pm to 8 pm edt Monday for anz231-
251.

Small craft advisory from noon Monday to 7 am edt Tuesday for
anz250-254.

Small craft advisory from 2 pm Monday to 7 am edt Tuesday for
anz255-256.

Synopsis... Kjc dunten
near term... Frank
short term... Kjc
long term... Dunten
aviation... Kjc dunten
marine... Kjc dunten
climate... Staff


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BHBM3 - 8443970 - Boston, MA 13 mi42 min 72°F 1016.1 hPa
44013 - BOSTON 16 NM East of Boston, MA 33 mi82 min SSE 9.7 G 9.7 64°F 62°F1 ft1017.3 hPa (-0.4)60°F
FOXR1 - 8454000 - Providence, RI 33 mi42 min S 6 G 7 66°F 65°F1017.5 hPa
PVDR1 34 mi42 min SSE 9.9 G 11 66°F 1018.2 hPa64°F
CPTR1 - 8452944 - Conimicut Light, RI 38 mi42 min S 8.9 G 9.9 65°F 67°F1018.1 hPa
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 39 mi42 min SSW 6 G 8.9 67°F 1018.1 hPa
FRXM3 40 mi42 min 67°F 59°F
FRVM3 - 8447386 - Fall River, MA 40 mi42 min 67°F 68°F1018.6 hPa
44029 - Buoy A0102 - Mass. Bay/Stellwagen 41 mi68 min 63°F 59°F2 ft1015.6 hPa
NAXR1 - Narragansett Bay Reserve, RI 44 mi87 min SSW 2.9 64°F 1019 hPa62°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 44 mi42 min WSW 2.9 G 5.1 64°F 1018.2 hPa
PRUR1 46 mi42 min 64°F 62°F
QPTR1 - 8454049 - Quonset Point, RI 48 mi60 min SSW 7 G 8 65°F 66°F1018.3 hPa

Wind History for Providence, RI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Norwood, Norwood Memorial Airport, MA8 mi19 minS 610.00 miFair67°F57°F73%1017 hPa
East Milton, MA9 mi16 minS 14 mi67°F55°F66%1018 hPa
Bedford, Hanscom Field, MA14 mi16 minSSW 610.00 miFair68°F55°F65%1017.4 hPa
Boston, Logan International Airport, MA15 mi18 minS 810.00 miPartly Cloudy69°F55°F61%1016.8 hPa

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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmCalm3CalmCalmCalmW65NE8E7NE4S8S7S6S4S5S6
1 day agoCalmCalmS3CalmCalmE3CalmSW4W6NW9NW7N10
G17
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NE74W5CalmW6SW3CalmCalmCalmCalm
2 days agoNW4NE5NE5NE4NE6NE65E6NE7NE43SE643NE73NW4W8W6CalmCalmCalmCalmCalm

Tide / Current Tables for Dover St. Bridge, Fort Point Channel, Boston, Massachusetts
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Dover St. Bridge
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Mon -- 03:23 AM EDT     11.69 feet High Tide
Mon -- 05:07 AM EDT     Sunrise
Mon -- 09:49 AM EDT     -1.26 feet Low Tide
Mon -- 10:36 AM EDT     Moonrise
Mon -- 04:07 PM EDT     10.53 feet High Tide
Mon -- 08:23 PM EDT     Sunset
Mon -- 10:09 PM EDT     0.07 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
57.810.211.611.49.97.44.51.6-0.6-1.2-0.12.14.77.49.610.5108.46.13.51.20.10.7

Tide / Current Tables for Boston Harbor, Massachusetts Current
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Boston Harbor
Click for Map
Mon -- 02:52 AM EDT     -0.00 knots Slack
Mon -- 05:06 AM EDT     Sunrise
Mon -- 06:57 AM EDT     -1.22 knots Max Ebb
Mon -- 09:39 AM EDT     0.00 knots Slack
Mon -- 10:36 AM EDT     Moonrise
Mon -- 12:38 PM EDT     1.19 knots Max Flood
Mon -- 03:30 PM EDT     -0.00 knots Slack
Mon -- 07:51 PM EDT     -1.09 knots Max Ebb
Mon -- 08:23 PM EDT     Sunset
Mon -- 10:04 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.21.10.6-0.1-0.6-1-1.2-1.2-1.1-0.60.311.21.210.3-0.3-0.7-0.9-1.1-1.1-0.9-0.10.8

Weather Map and Satellite Images
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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.
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Wind Forecast for Boston, MA (0,6,7,8)
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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.