Monday, August26, 2019 L-36.com


Marine Weather and Tides
Narragansett Pier, RI

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 6:03AMSunset 7:30PM Monday August 26, 2019 3:45 AM EDT (07:45 UTC) Moonrise 1:26AMMoonset 4:51PM Illumination 18% 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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ANZ236 Narragansett Bay- 116 Am Edt Mon Aug 26 2019
Rest of tonight..NE winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft.
Mon..NE winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft.
Mon night..NE winds 5 to 10 kt. Waves around 2 ft.
Tue..NE winds around 5 kt, becoming se around 5 kt in the afternoon. Waves around 2 ft.
Tue night..E winds around 5 kt. Waves around 2 ft.
Wed..SE winds 5 to 10 kt. Waves 2 to 3 ft. A chance of showers.
Wed night..E winds 5 to 10 kt, becoming ne after midnight. Waves 2 to 3 ft. Showers likely. Vsby 1 to 3 nm.
Thu..NW winds around 5 kt. Waves 2 to 3 ft. A chance of showers.
Thu through Fri..SW winds 5 to 10 kt. Waves 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 Narragansett Pier, RI
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location: 41.44, -71.43     debug


Area Discussion for - Boston, MA
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Fxus61 kbox 260729
afdbox
area forecast discussion
national weather service boston norton ma
329 am edt Mon aug 26 2019

Synopsis
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 pm this evening
High pressure centered over the maritimes is building south
across new england. This is diminishing the wind over southern
new england and decreasing the onshore flow of moist air and
resulting clouds. It is also increasing the subsidence and
resulting drying of the air.

Most of the low clouds that lingered over ri and SE mass had
dissipated by 230 am. Another area of clouds was becoming
uncovered over georges bank... This was trending west and the
current trend would bring it to the outer CAPE and nantucket
around 930 am. That assumes it doesn't dissipate from subsidence
along the way.

Aside from the question of clouds over the CAPE this morning,
the overall trend for southern new england is subsidence sunny
skies dry air courtesy of the northern high pressure. Gusty
east-northeast winds will be strongest on the islands, weakest
in northern massachusetts. Gusts on the CAPE and islands may
reach 20-25 mph.

Solar mixing is expected to reach near 850-mb, where
temperatures will be 8-10c. That suggests MAX sfc temperatures
today will be in the 70s. Along the eastern mass coastline, a
few spots may top out in the upper 60s.

Short term 6 pm this evening through 6 pm Tuesday
High pressure remains in control tonight and Tuesday. Light
winds will allow temperatures to radiate tonight. Dew points
will be 45 to 55, so min temps should range from the mid 40s
inland through the 50s. The radiational cooling may also bring
areas of fog. Favored areas include the ct river valley of mass,
and the normal fog-developing spots region-wide.

Subsidence should maintain clear or mostly clear skies during
the day Tuesday. Deeper subsidence may limit the mixed layer to
just 925-mb. Temps at 925 mb will be about 16c, equiv to 8-9c
at 850 mb. That would support MAX sfc temps in the 70s.

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...

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 07z 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.

Today...

high pressure over new brunswick will maintain mostly clear
skies across the region and 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.

There is some concern about an area of clouds over the ocean
near georges bank, moving west. If these clouds hold together
they should reach outer CAPE cod and nantucket about 930 am and
affect the CAPE and islands with 2500 foot ceilings through the
rest of the morning. This will need to be monitored.

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... High confidence in taf.VFR clear with ene wind
around 10 kt.

Kbdl terminal... High confidence in taf.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.

High pressure over the maritimes is building south over the
waters. But it continues to generate east-northeast winds over
the southern new england waters with strongest winds south of
the islands with gusts to 25 kt. The persistant wind has built
seas to 5-7 feet
as the high builds farther south today, the winds will diminish
with light winds on all waters tonight and Tuesday. Seas will
linger at 5-7 feet today and tonight, then diminish during the
day Tuesday. We will maintain small craft advisories through
that time.

Outlook Tuesday night through Friday ... Moderate confidence.

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... Wtb belk
near term... Wtb
short term... Wtb
long term... Belk
aviation... Wtb belk
marine... Wtb belk


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NWPR1 - 8452660 - Newport, RI 7 mi46 min NNE 9.9 G 14 60°F 64°F1023.3 hPa (-1.1)
QPTR1 - 8454049 - Quonset Point, RI 10 mi52 min NNE 17 G 20 62°F 73°F1023.9 hPa
PRUR1 13 mi46 min 60°F 57°F
NAXR1 - Narragansett Bay Reserve, RI 14 mi61 min NE 13 61°F 1024 hPa58°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 14 mi46 min NE 11 G 15 61°F 1024.3 hPa (-0.7)
CPTR1 - 8452944 - Conimicut Light, RI 20 mi46 min N 11 G 12 59°F 71°F1024 hPa (-0.8)
BUZM3 - Buzzards Bay, MA 21 mi46 min NNE 17 G 19 62°F 1023 hPa (-1.3)
FRXM3 22 mi46 min 60°F 56°F
FRVM3 - 8447386 - Fall River, MA 23 mi46 min 59°F 75°F1024 hPa (-0.8)
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 23 mi46 min NNE 8.9 G 11 60°F 1023.7 hPa (-0.6)
PVDR1 24 mi46 min N 7 G 9.9 58°F 1024.2 hPa (-0.8)54°F
FOXR1 - 8454000 - Providence, RI 25 mi46 min NE 7 G 9.9 58°F 70°F1024 hPa (-0.7)
NLNC3 - 8461490 - New London, CT 35 mi46 min N 2.9 G 8 58°F 69°F1023.5 hPa (-0.6)
44097 - Block Island, RI (154) 36 mi46 min 70°F6 ft
LDLC3 - New London Ledge CT - Ledge Light Weather 36 mi16 min N 13 G 16 58°F 54°F
MTKN6 - 8510560 - Montauk, NY 39 mi46 min 63°F 69°F1023.1 hPa (-0.6)
BZBM3 - 8447930 - Woods Hole, MA 41 mi46 min 60°F 72°F1023 hPa (-1.1)
WAXM3 - Waquoit Bay Reserve, MA 49 mi61 min W 1 58°F 1023 hPa56°F

Wind History for Newport, RI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Newport, Newport State Airport, RI11 mi2.9 hrsNE 810.00 miPartly Cloudy61°F55°F84%1024 hPa
Block Island State Airport, RI20 mi4.8 hrsNNE 14 G 2210.00 miOvercast0°F0°F%1024.4 hPa
Providence, Theodore Francis Green State Airport, RI20 mi4.9 hrsNNE 1110.00 miOvercast62°F55°F80%1025.2 hPa
Westerly, Westerly State Airport, RI21 mi4.9 hrsN 510.00 miMostly Cloudy60°F55°F86%1024.6 hPa

Link to 5 minute data for KUUU

Wind History from UUU (wind in knots)
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NE10N10NE10N7NE9--NE8--NE7
1 day agoN6N7N7N6N8N5N9NE8N9
G14
NW7W6N8N11NE12NE8NE8NE5NE8NE6----NE7N6--
2 days ago--N4N3N4NW4--N3CalmCalmNW45CalmNW4CalmCalmCalmE5NW3Calm--------N9

Tide / Current Tables for Narragansett Pier, Narragansett Bay, Rhode Island
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Narragansett Pier
Click for Map
Mon -- 01:25 AM EDT     Moonrise
Mon -- 04:31 AM EDT     2.92 feet High Tide
Mon -- 06:05 AM EDT     Sunrise
Mon -- 10:06 AM EDT     0.33 feet Low Tide
Mon -- 04:50 PM EDT     Moonset
Mon -- 05:00 PM EDT     3.77 feet High Tide
Mon -- 07:28 PM EDT     Sunset
Mon -- 11:13 PM EDT     0.32 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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11.41.92.42.92.92.51.81.10.50.30.50.91.42.12.83.53.83.52.81.91.10.50.3

Tide / Current Tables for Westport River Entrance, Massachusetts Current
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Westport River Entrance
Click for Map
Mon -- 01:24 AM EDT     Moonrise
Mon -- 03:21 AM EDT     1.82 knots Max Flood
Mon -- 05:36 AM EDT     -0.00 knots Slack
Mon -- 06:04 AM EDT     Sunrise
Mon -- 07:57 AM EDT     -2.28 knots Max Ebb
Mon -- 11:46 AM EDT     0.00 knots Slack
Mon -- 03:46 PM EDT     1.58 knots Max Flood
Mon -- 04:49 PM EDT     Moonset
Mon -- 05:52 PM EDT     -0.00 knots Slack
Mon -- 07:27 PM EDT     Sunset
Mon -- 08:21 PM EDT     -2.49 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.511.51.81.70.8-0.6-1.8-2.3-1.9-1.2-0.50.10.61.11.41.61.1-0.2-1.6-2.4-2.3-1.6-0.8

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.