Saturday, December16, 2017 L-36.com


Marine Weather and Tides
Warwick, RI

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:05AMSunset 4:18PM Saturday December 16, 2017 7:17 PM EST (00:17 UTC) Moonrise 6:19AMMoonset 4:32PM Illumination 2% Phase: Waning Crescent; Moon at 28 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- 630 Pm Est Sat Dec 16 2017
Tonight..NW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Waves 2 to 3 ft. Snow showers likely this evening.
Sun..NW winds 5 to 10 kt. Waves 1 foot or less.
Sun night..NW winds around 5 kt, becoming sw after midnight. Waves 1 foot or less.
Mon..S winds around 5 kt, becoming sw around 5 kt in the afternoon. Waves 1 foot or less. A chance of snow showers.
Mon night..W winds around 5 kt. Waves 1 foot or less.
Tue..SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Gusts up to 30 kt. Waves 2 to 3 ft.
Tue night..W winds 10 to 15 kt with gusts up to 30 kt. Waves 2 to 4 ft.
Wed..W winds 10 to 15 kt with gusts up to 30 kt. Waves 2 to 3 ft.
Wed night..NW winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft.
Thu..NW winds 5 to 10 kt with gusts up to 20 kt. Waves around 2 ft.
Thu night..NE winds 5 to 10 kt. Waves 1 foot or less. 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 630 Pm Est Sat Dec 16 2017
Synopsis for massachusetts and rhode island coastal waters.. High pres builds over new eng Sun, then a warm front will lift across the waters Mon. Another cold front will sweep across new eng and the coastal waters Tue night followed by gusty winds Wed. 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 170014
afdbox
area forecast discussion
national weather service taunton ma
714 pm est Sat dec 16 2017

Synopsis
Blustery and cold conditions today with less wind Sunday as
high pressure builds across the region. A weak wave of low
pressure may bring spotty light snow showers to the region late
Sunday night into Monday morning. Temperatures will be milder on
Tuesday ahead of a cold front, then turning blustery and colder
Wednesday into Thursday. A wave of low pressure which may track
to our west will bring the potential for a wintry mix rain
sometime Friday and or Saturday.

Near term until 6 am Sunday morning
710 pm update...

scattered light snow showers flurries have pretty much exited
the south coast early this evening. There were a few more brief
flurries snow showers dropping down into northern ma, but this
activity should wind down in the next hour or two. Drier air
working in from the northwest should allow skies to become
mainly clear from north to south through midnight.

Very cold temperatures will also be ushered into the region
overnight behind the cold front. Winds should gradually
diminish overnight allowing the coldest outlying locations to
drop into the single digits by daybreak especially with snow
cover. The rest of the region should see overnight lows drop
well down into the teens.

Short term 6 am Sunday morning through Sunday night
Sunday into Sunday night...

high pressure north of the region will continue to build into
tomorrow. This will result in light winds and mostly clear skies. A
chilly start to the morning with temps rebounding into the upper 20s
to low 30s. Despite weak WAA during the later half of the day, still
enough shallow cold air to keep temps cooler than today. Clouds will
build within the WAA pattern during the later afternoon into evening
hours.

Surface low pressure system moving into the great lakes with warm
front extending towards the northeast. High pressure remaining to
our north will keep winds light during the overnight hours. However
with clouds thickening during the late evening, radiational cooling
will be limited resulting in lows in the teens and low 20s.

Increasing threat-e ahead of the warm front could be enough for a few
snow showers towards the early morning. Models are indicating very
little in the way of QPF and with not a lot of lift, will keep the
potential at a chance for now.

Long term Monday through Saturday
Highlights...

* lingering spotty light snow showers possible into Mon am
* low risk for spotty freezing drizzle northern and ESP NE ma Mon pm
* mainly dry and much milder tue
* blustery and colder with mainly dry weather Wed into thu
* period of wintry mix rain possible sometime Fri and or sat
details...

Monday morning...

moisture and weak lift may be enough for a bit of lingering spotty
light snow showers into Monday morning. Limited moisture forcing
will should keep any accums to a dusting to no more than an inch.

Monday afternoon and night...

somewhat of a tricky forecast Monday afternoon and night. Low clouds
will likely hang tough on Monday. Temps should climb above freezing
Monday afternoon to the south of the ma turnpike with readings
reaching well into the 30s to the lower 40s. North of the ma
turnpike, temps will struggle to climb much above freezing. In
fact, some of the guidance shows a weak meso-low lifting northeast
of the region. This may allow temps to fall a bit across parts of
the area during the afternoon, especially northeast ma where some
guidance has readings in the 20s by early evening. Not sure if
there will be enough left over low level moisture for any precip,
but can not rule out the low risk for spotty freezing drizzle or
flurries in north and especially northeast ma Mon pm. Something
will have to watch closely though given just trace amounts of spotty
freezing drizzle can be problematic.

Tuesday...

westerly flow aloft, 850t near -2c and decent mixing should push
high temps well up into the 40s to perhaps even near 50 in a few
locations along the coastal plain. Mainly dry weather anticipated
as synoptic forcing is limited, but can not rule out a few showers
in the afternoon across western ma as a cold front approaches.

Tuesday night and Wednesday...

a cold front will cross the region Tue night into early Wed with
perhaps a few brief rain snow showers. High temps will recover well
into the 30s to around 40, but a well mixed atmosphere should result
in northwest wind gusts of 30 to 40 mph developing Wednesday and
making it feel colder.

Thursday...

mainly dry and cold weather continues but with less wind than on
Wednesday. High temps will be held mainly in the lower to middle
30s.

Friday and Saturday...

low confidence forecast as always given time range but even more
complicated by the pattern. Model guidance has a classic la nina
pattern with upper level ridging over the southeast u.S., resulting
in above normal temps in that region. Meanwhile, arctic air will be
sitting across eastern canada. This will put our region in the
battle ground with a wide range in possible temperature outcomes and
ptypes. Based on the current guidance an initial wave of low
pressure appears like it will track west of the region Fri into sat.

Assuming that happens, ptype would either be mainly rain or snow ice
transitioning to mainly rain. Of course a lot can change
between now and that time, and given the large temperature
gradient that will be setting up across the eastern u.S. Would
not put to much into a deterministic forecast this far out.

Aviation 00z Sunday through Thursday
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Sunday night ... High confidence.

Overnight and Sunday...VFR conditions other than a brief spot
snow shower possible through 02z.

Sunday night...VFR to start with MVFR conditions expanding from
south to north towards daybreak. Chance of snow showers during
the overnight.

Kbos terminal... High confidence.

Kbdl terminal... High confidence.

Outlook Monday through Thursday ...

Monday: mainlyVFR, with areas MVFR possible. Chance shsn,
slight chance fzdz.

Monday night: mainlyVFR, with local MVFR possible. Slight
chance fzdz.

Tuesday: mainlyVFR, with local MVFR possible. Windy with areas
gusts to 30 kt. Slight chance shra.

Tuesday night:VFR. Windy with gusts to 30 kt. Slight chance
shra.

Wednesday:VFR. Windy with gusts to 35 kt.

Wednesday night:VFR. Windy with local gusts to 30 kt.

Thursday:VFR. Breezy.

Marine
Forecaster confidence levels...

low - less than 30 percent.

Moderate - 30 to 60 percent.

High - greater than 60 percent.

Short term through Sunday night ... High confidence.

Tonight... W-nw gusts to 25-30 kt lingering into this evening
before diminishing after midnight. SCA all waters.

Sunday and Sunday night... Light NW winds with seas below sca.

Outlook Monday through Thursday ...

Monday: winds less than 25 kt. Chance of snow showers, slight
chance of rain showers.

Monday night: winds less than 25 kt.

Tuesday: moderate risk for small craft advisory winds with
gusts up to 30 kt. Local rough seas. Slight chance of rain
showers.

Tuesday night: low risk for gale force winds with gusts up to
30 kt. Local rough seas. Slight chance of rain showers.

Wednesday: low risk for gale force winds with gusts up to
35 kt. Areas of rough seas.

Wednesday night: moderate risk for small craft advisory winds
with gusts up to 30 kt. Local rough seas.

Thursday: low risk for small craft advisory winds with gusts up
to 25 kt. Seas locally approaching 5 ft.

Box watches warnings advisories
Ct... None.

Ma... None.

Ri... None.

Marine... Small craft advisory until 1 am est Sunday for anz231>234-251.

Small craft advisory until 3 am est Sunday for anz235-237-250.

Small craft advisory until 8 am est Sunday for anz254>256.

Synopsis... Dunten frank
near term... Frank dunten
short term... Dunten
long term... Frank
aviation... Dunten frank
marine... Dunten frank


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 2 mi48 min N 7 G 12 32°F 1018.1 hPa
NAXR1 - Narragansett Bay Reserve, RI 2 mi93 min NW 8 33°F 996 hPa21°F
CPTR1 - 8452944 - Conimicut Light, RI 3 mi48 min WNW 12 G 17 32°F 41°F1017.9 hPa
PRUR1 5 mi48 min 33°F 20°F
QPTR1 - 8454049 - Quonset Point, RI 7 mi48 min NW 7 G 8.9 32°F 39°F1018.2 hPa
PVDR1 8 mi48 min NW 8 G 11 31°F 1018.1 hPa20°F
FRXM3 9 mi48 min 33°F 21°F
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 10 mi48 min NW 12 G 15 33°F 1017.1 hPa
FOXR1 - 8454000 - Providence, RI 10 mi54 min NW 11 G 13 31°F 43°F1017.5 hPa
FRVM3 - 8447386 - Fall River, MA 10 mi48 min 33°F 41°F1018.3 hPa
NWPR1 - 8452660 - Newport, RI 12 mi48 min NNW 11 G 15 33°F 43°F1017.5 hPa
BUZM3 - Buzzards Bay, MA 25 mi78 min W 25 G 29 36°F 1016.6 hPa (+2.5)
BZBM3 - 8447930 - Woods Hole, MA 37 mi48 min 34°F 42°F1017.2 hPa
WAXM3 - Waquoit Bay Reserve, MA 44 mi93 min 4.1 32°F 1016 hPa19°F
NLNC3 - 8461490 - New London, CT 45 mi48 min NW 1.9 G 6 34°F 47°F1018 hPa
LDLC3 - New London Ledge CT - Ledge Light Weather 46 mi33 min WNW 9.9 G 12 35°F 1017.6 hPa22°F

Wind History for Potter Cove, Prudence Island, RI
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
N. Kingston / Quonset, RI6 mi2.5 hrsW 615.00 miOvercast34°F19°F56%1015.2 hPa
Providence, Theodore Francis Green State Airport, RI6 mi27 minNW 710.00 miOvercast31°F21°F67%1018.6 hPa
Newport, Newport State Airport, RI10 mi25 minNNW 11 G 1710.00 miOvercast31°F21°F69%1018.3 hPa
Pawtucket, North Central State Airport, RI17 mi22 minNW 510.00 miMostly Cloudy27°F19°F72%1012.9 hPa
New Bedford, New Bedford Regional Airport, MA20 mi25 minWNW 810.00 miOvercast31°F19°F64%1018 hPa
Taunton, Taunton Municipal Airport, MA23 mi26 minW 510.00 miMostly Cloudy29°F19°F66%1017.7 hPa

Wind History from OQU (wind in knots)
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Last 24hrNW5NW5N5NW5----------------------W12W13
G23
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G23
NW15W15W15W15W14W6
1 day agoNW12NW14NW18NW14NW12NW15----------------W5W5W8W6CalmCalmCalmCalmNE5NE5
2 days agoW15W15W15NW16NW8NW13----------------N13N10N10N9N9NW8W17NW10NW15NW15

Tide / Current Tables for Nayatt Point, Narragansett Bay, Rhode Island
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Nayatt Point
Click for Map
Sat -- 05:19 AM EST     Moonrise
Sat -- 06:18 AM EST     5.22 feet High Tide
Sat -- 07:06 AM EST     Sunrise
Sat -- 12:31 PM EST     0.12 feet Low Tide
Sat -- 03:32 PM EST     Moonset
Sat -- 04:15 PM EST     Sunset
Sat -- 06:37 PM EST     4.40 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.10.412.13.44.55.2542.61.40.60.20.20.51.22.33.54.24.33.62.31.10.3

Tide / Current Tables for Westport River Entrance, Massachusetts Current
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Westport River Entrance
Click for Map
Sat -- 01:50 AM EST     0.00 knots Slack
Sat -- 04:48 AM EST     2.45 knots Max Flood
Sat -- 05:17 AM EST     Moonrise
Sat -- 07:04 AM EST     -0.00 knots Slack
Sat -- 07:04 AM EST     Sunrise
Sat -- 09:38 AM EST     -2.31 knots Max Ebb
Sat -- 02:06 PM EST     0.00 knots Slack
Sat -- 03:32 PM EST     Moonset
Sat -- 04:15 PM EST     Sunset
Sat -- 05:13 PM EST     2.70 knots Max Flood
Sat -- 07:37 PM EST     -0.01 knots Slack
Sat -- 10:06 PM EST     -2.13 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1.4-0.70.21.22.12.41.70.1-1.4-2.2-2.3-2-1.6-1-0.1122.72.41-0.6-1.8-2.1-2

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Northeast    EDIT
Geos

Wind Forecast for Boston, MA (19,4,5,8)
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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.