Monday, August19, 2019 L-36.com


Marine Weather and Tides
Warwick, RI

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 5:56AMSunset 7:41PM Monday August 19, 2019 11:46 PM EDT (03:46 UTC) Moonrise 9:56PMMoonset 9:39AM Illumination 79% Phase: Waning Gibbous; Moon at 19 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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ANZ236 Narragansett Bay- 1000 Pm Edt Mon Aug 19 2019
Overnight..W winds 5 to 10 kt. Waves 2 to 3 ft.
Tue..N winds around 5 kt, becoming S in the afternoon. Waves 2 to 3 ft.
Tue night..S winds around 5 kt. Waves around 2 ft. A chance of showers.
Wed..S winds 5 to 10 kt. Waves around 2 ft. A chance of showers and tstms.
Wed night and Thu..SW winds 5 to 10 kt. Waves 2 to 4 ft. A chance of showers and tstms.
Thu night..W winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers and tstms.
Fri through Sat..N winds 5 to 10 kt. Waves 2 to 3 ft. 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 1000 Pm Edt Mon Aug 19 2019
Synopsis for massachusetts and rhode island coastal waters.. Small area of high pressure will cross over the waters Tuesday. Late Tue night a front moves northward as a warm front. Risk for more showers and Thunderstorms Wed and possibly into Thu. A stronger cold front sweeps across the waters late Thu followed by dry weather and good vsby Fri into the weekend. 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 Warwick, RI
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location: 41.67, -71.35     debug


Area Discussion for - Boston, MA
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Fxus61 kbox 200206
afdbox
area forecast discussion
national weather service boston norton ma
1006 pm edt Mon aug 19 2019

Synopsis
A weak cold front sweeps across the area overnight. Behind the
front, a brief period of drier and less humid weather will be
with us for Tuesday. The front returns north on Wednesday as a
warm front. Humid and very warm conditions overspread the
region Wed afternoon through Thursday. The return of this
summer-like airmass will be accompanied by the risk for
scattered thunderstorms Wed and thu. A cold front sweeps across
the area late Thu setting the stage for dry and less humid
weather Friday into the weekend.

Near term until 6 am Tuesday morning
The last of the showers is moving past the outer CAPE and
nantucket. Per satellite, skies are clear or mostly clear across
most of southern new england. Most of the clouds, over CAPE cod
and the islands, will be moving off to the east by midnight.

Weak cold front has moved through the berkshires and is moving
east. This will move through southern new england overnight with
light south winds becoming light northwest. Dew points, which
were near 70 earlier, will trend to the mid 60s, possibly low
60s in northwest ma. Based on this, we continue to expect
overnight min temps in the 60s.

Short term 6 am Tuesday morning through Tuesday night
445 pm update ...

Tuesday ...

post frontal airmass settles over the region tomorrow with good
column drying as pwats fall below 1 inch, providing abundant
sunshine. This dry air mixes to the surface with dew pts in the
mid to upper 50s, although afternoon seabreezes will keep dew
pts in the low to mid 60s. Still much more comfortable than the
mid 70 dew pts of today.

Not as hot as today but warm with highs in the mid to upper 80s,
just more tolerable with dew pts in the mid to upper 50s.

Overall a real nice late summer day by new england standards.

Tuesday night ...

pleasant during the evening hours with dry weather and
comfortable humidity hanging on. Second half of the night warm
front approaches from the southwest with risk of showers and
thunderstorms toward daybreak. Also patchy fog possible late.

Long term Wednesday through Monday
*** will update after thunderstorms exit ***
highlights...

* shower and thunderstorm chances Wednesday-Thursday
* a cold front brings dry & cooler conditions Friday through the
weekend
details...

Tuesday night through Thursday... .

A series of shortwaves and a strong cold front will bring periodic
shower and thunderstorm chances through Thursday. Starting late
Tuesday early Wednesday a warm front will begin to make its way
north across the region. With this warm front comes a very humid
airmass (dewpoints rising from the 50s Tuesday to the low 70s early
Wednesday, and pwats back up near 2"). As mid level energy
associated with a weak shortwave moves through and interacts with
the warm front it initiates showers and thunderstorms. There is
potential for some strong thunderstorms given the moist warm sector
and CAPE values 2000-3000 j kg with moderate to good bulk shear (35-
45kts). Any storms that form could produce gusty winds and heavy
downpours given how much moisture is in the column. At the moment
the best chance for heavier rainfall looks to be areas north and
west, with less QPF over southeast ma coastal ri. However, we're
still too far out to nail down specifics with much confidence.

The surface low and upper trough over the great lakes region then
slides north and east late Wednesday to Thursday dragging its cold
front across southern new england overnight Thursday. Along and
ahead of the front we again see shower and thunderstorm chances with
>2000 j kg CAPE and good shear parameters (>40 kts bulk shear).

Temperatures remain relatively steady through this period in the
80s before a cool down arrives to end the week.

Friday through Sunday...

the cold front exits off the south coast or in the vicinity by
Friday morning leaving a cooler and much drier post frontal airmass
in its wake. Pwats drop to 0.5" while surface dewpoints in the low
50s will make the air feel refreshing compared to the previous week.

Surface high pressure and mid level ridging builds in through the
period bringing dry and pleasant weather through the weekend. Cold
pool aloft (850mb temps 7-10c) will allow for surface highs in the
70s each day.

Aviation 02z Tuesday through Saturday
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Tuesday night ... Moderate confidence.

Last of the showers are moving off CAPE cod. Lingering 800 to
1200 foot ceilings with these showers, but all of this is moving
off to the east. Observed conditions are mostly clear off-cape
and trending clear on-cape. Light south winds will turn from the
west and northwest as a weak cold front moves through overnight.

Tuesday ...

vfr and dry weather. Afternoon seabreezes near the coast.

Tuesday night ...

vfr and dry to start but becoming MVFR with chance of showers
and thunderstorms toward morning.

Kbos terminal... High confidence in taf.

Kbdl terminal... High confidence in taf.

Outlook Wednesday through Saturday ... Moderate confidence.

Wednesday: mainly MVFR, with areasVFR possible. Chance shra,
chance tsra.

Wednesday night: mainlyVFR, with areas MVFR possible. Chance
shra, chance tsra.

Thursday: mainly MVFR, with areasVFR possible. Chance shra,
chance tsra.

Thursday night: mainlyVFR, with areas MVFR possible. Slight
chance shra.

Friday:VFR.

Friday night: mainlyVFR, with local MVFR possible. Slight
chance shra.

Saturday:VFR.

Marine
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

5 pm update ...

short term through Tuesday night ... High confidence.

Tonight ...

last of the showers are over nantucket sound and east of the
outer cape. These will move out to sea by midnight. Visibility
in these showers is 5 nm or higher. Clear skies and light wind
will be over the waters through the night.

Tuesday ...

very pleasant weather with light winds and good vsby.

Tuesday night ...

tranquil dry weather in the evening, then lowering vsby toward
daybreak in fog and chance of showers and thunderstorms.

Outlook Wednesday through Saturday ... Moderate confidence.

Wednesday: winds less than 25 kt. Chance of rain showers,
chance of thunderstorms.

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

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

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

Friday through Friday night: winds less than 25 kt. Areas of
seas approaching 5 ft. Slight chance of rain showers.

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

Box watches warnings advisories
Ct... None.

Ma... None.

Ri... None.

Marine... None.

Synopsis... Nocera
near term... Wtb nocera
short term... Nocera
long term... Bw
aviation... Nocera bw
marine... Nocera bw


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 2 mi53 min WSW 4.1 G 5.1 71°F 1015.8 hPa
NAXR1 - Narragansett Bay Reserve, RI 2 mi62 min WSW 1.9 70°F 1015 hPa70°F
CPTR1 - 8452944 - Conimicut Light, RI 3 mi53 min WSW 2.9 G 4.1 73°F 77°F1015.3 hPa
PRUR1 5 mi53 min 71°F 69°F
QPTR1 - 8454049 - Quonset Point, RI 7 mi53 min SSW 1.9 G 2.9 72°F 71°F1015.5 hPa
PVDR1 8 mi53 min SW 1 G 1.9 73°F 1015.4 hPa71°F
FRXM3 9 mi53 min 73°F 69°F
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 10 mi53 min SSW 2.9 G 4.1 74°F 1015.2 hPa
FOXR1 - 8454000 - Providence, RI 10 mi53 min SW 2.9 G 4.1 73°F 76°F1015 hPa
FRVM3 - 8447386 - Fall River, MA 10 mi53 min 74°F 79°F1015.5 hPa
NWPR1 - 8452660 - Newport, RI 12 mi53 min SW 2.9 G 4.1 72°F 68°F1015.3 hPa
BZBM3 - 8447930 - Woods Hole, MA 37 mi53 min 74°F 73°F1014.8 hPa
WAXM3 - Waquoit Bay Reserve, MA 44 mi62 min W 2.9 73°F 1015 hPa72°F
NLNC3 - 8461490 - New London, CT 45 mi53 min SSW 1 G 2.9 74°F 72°F1015.2 hPa

Wind History for Potter Cove, Prudence Island, RI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Providence, Theodore Francis Green State Airport, RI6 mi1.9 hrsN 010.00 miA Few Clouds72°F71°F97%1015.1 hPa
Newport, Newport State Airport, RI10 mi1.9 hrsN 010.00 miFair72°F68°F87%1014.8 hPa
Pawtucket, North Central State Airport, RI17 mi1.8 hrsWSW 33.00 miFog/Mist69°F69°F100%1010 hPa
New Bedford, New Bedford Regional Airport, MA20 mi1.9 hrsWSW 410.00 miFair70°F68°F93%1014.4 hPa
Taunton, Taunton Municipal Airport, MA23 mi1.9 hrsW 510.00 miFair72°F68°F87%1014.5 hPa

Link to 5 minute data for KPVD

Wind History from PVD (wind in knots)
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Last 24hrS7S5S8SW7SW6SW6SW4S3S5SW8SW8E8
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1 day agoS4S4S4CalmCalmW4S3SW5CalmW34CalmCalmS13S11S13SE12
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2 days agoS3SE6S6S5CalmSE3E3E3SE5SE7S6S7S7S7S5S5E4S7S7S6SE5S3S4S3

Tide / Current Tables for Bristol Highlands, Narragansett Bay, Rhode Island
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Bristol Highlands
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Mon -- 03:58 AM EDT     0.31 feet Low Tide
Mon -- 05:57 AM EDT     Sunrise
Mon -- 09:38 AM EDT     Moonset
Mon -- 11:13 AM EDT     4.36 feet High Tide
Mon -- 04:16 PM EDT     0.57 feet Low Tide
Mon -- 07:39 PM EDT     Sunset
Mon -- 09:55 PM EDT     Moonrise
Mon -- 11:27 PM EDT     4.16 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.92.81.50.60.30.511.72.53.344.34.13.32.11.10.60.71.11.72.333.74.1

Tide / Current Tables for Westport River Entrance, Massachusetts Current
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Westport River Entrance
Click for Map
Mon -- 02:10 AM EDT     -2.72 knots Max Ebb
Mon -- 05:52 AM EDT     0.00 knots Slack
Mon -- 05:57 AM EDT     Sunrise
Mon -- 09:37 AM EDT     Moonset
Mon -- 09:48 AM EDT     2.21 knots Max Flood
Mon -- 12:09 PM EDT     -0.00 knots Slack
Mon -- 02:35 PM EDT     -2.68 knots Max Ebb
Mon -- 06:18 PM EDT     0.00 knots Slack
Mon -- 07:38 PM EDT     Sunset
Mon -- 09:55 PM EDT     Moonrise
Mon -- 10:08 PM EDT     1.92 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.5-2-2.7-2.4-1.6-0.70.10.91.522.21.60.3-1.4-2.5-2.6-2-1.1-0.20.51.11.61.91.7

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 (23,6,7,8)
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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.