Sunday, August25, 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 6:02AMSunset 7:31PM Sunday August 25, 2019 7:03 AM EDT (11:03 UTC) Moonrise 12:35AMMoonset 3:50PM Illumination 26% 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- 338 Am Edt Sun Aug 25 2019
.small craft advisory in effect from 10 am edt this morning through this afternoon...
Today..NE winds 10 to 15 kt with gusts up to 25 kt. Waves 2 to 3 ft. A chance of showers.
Tonight..NE winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Gusts up to 20 kt. Waves 2 to 3 ft.
Mon..NE winds around 10 kt with gusts up to 20 kt. Waves around 2 ft.
Mon night..NE winds 5 to 10 kt. Waves around 2 ft.
Tue..E winds around 5 kt. Waves 1 foot or less.
Tue night..NE winds around 5 kt. Waves around 2 ft.
Wed..E winds 5 to 10 kt. Waves around 2 ft.
Wed night..E winds around 5 kt. Waves around 2 ft. Patchy fog. Showers likely. Vsby 1 to 3 nm.
Thu..NW winds around 5 kt. Waves 2 to 3 ft. Patchy fog. A chance of showers. Vsby 1 to 3 nm.
Thu night..W winds around 5 kt. Waves around 2 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 338 Am Edt Sun Aug 25 2019
Synopsis for massachusetts and rhode island coastal waters.. High pressure moving over the maritimes will bring northeast winds to the southern new england coast starting today. The winds may be joined by a few light showers, especially across the waters south of boston. 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 250828
afdbox
area forecast discussion
national weather service boston norton ma
428 am edt Sun aug 25 2019

Synopsis
High pressure over the maritimes will bring low clouds and light
showers to southeast new england through at least midday. High
pressure lingers over new brunswick through midweek, bringing
fair dry seasonable weather to most of southern new england. A
cold front then crosses from the west, bringing showers and
scattered thunderstorms late Wednesday and Thursday. Still have
an eye on the tropics at this time, with potential high surf
and dangerous rip currents for the atlantic-exposed shoreline
of southern new england.

Near term until 6 pm this evening
Surface high pressure moves over the maritime provinces of
canada. Its position will direct east-northeast winds across the
gulf of maine into southern new england. These winds will pick
up moisture from the gulf of maine and bring it onshore over
eastern massachusetts and rhode island. The result will be areas
of clouds and light showers drizzle that move over this area
during the morning, possibly lingering later near the south
coast. Clouds will clear over northeast ma, and break over much
of southeast ma and ri.

The maritime high will provide plenty of subsidence over
southern new england. Cross sections even over eastern ma show
dry air at and above 700 mb through the day. This suggests
interior sections, especially the ct rvr valley, should have a
dry day with partly to mostly sunny skies. The mixed layer
reaches to about 850 mb where temperatures are forecast at 8-9c.

This would support MAX sfc temps in the low to mid 70s, with
areas along the eastern coast struggling to break 70.

East-northeast winds will gust 20 to 25 mph over land in east
coastal areas, then diminish toward evening.

Short term 6 pm this evening through 6 pm Monday
Tonight...

clouds diminish a little, but remain in place over southern ri
and southeast ma. Cross sections show moisture lingering below
900 mb until Monday morning. Clearing skies farther inland due
to the subsidence from the maritime high.

Dew points remain low dry, ranging from the mid 40s in NW mass
to the 50s across much of southern new england. With light wind
from the high pressure, expect temperatures to the 40s over
western ma and the 50s to around 60 over the remainder of the
region.

Ene wind gusts 25 to 30 mph along the south coast, while winds
are light across northern and western mass.

Monday...

high pressure expands a little and brings drying clearing to the
south coast. Expect a dry weather day. Temperatures aloft at the
top of the mixed layer will be 8-10c, so daytime temperatures
should be in the 70s.

Long term Monday night through Saturday
Highlights...

* temperatures will remain cool into Tuesday, then will moderate
to near and above normal by late this week
* onshore winds will bring spotty light rain or showers at times
into mid week, best chances on Wednesday
* scattered showers will move across late Wednesday through
Thursday
details...

Monday night and Tuesday...

high pressure will remain across the region, with the center
anchored across eastern canada into northern maine. This will
keep a cool e-ne wind flow in place. 00z models indicating that
the high center may actually slip S across the region by
Tuesday, so the e-ne winds, which may gust up to 15-20 mph early
Monday night will diminish. This will allow good subsidence and
dry conditions during this timeframe. May still see onshore
winds along the immediate coast on Tuesday.

Temperatures will moderate to near normal levels on Tuesday with
the lighter winds. Expect highs mainly in the 70s, but may hang
near 70 along the immediate E coast.

Wednesday through Friday...

big question at this point will be the passing of the potential
tropical system around the mid to late week period. 00z models
starting to show more spread as the low shifts NE from off the
carolina coast, which lends to lower confidence. In the
meantime, a cold front tries to shift E out of the eastern great
lakes to western ny pa.

The western edge of the high will ever so slowly shift E wed,
but the circulation around the offshore system will keep winds
from the E or se. May also see some showers develop off the
ocean across E mass into ri during the day.

At this point, showers develop across western areas as the
front approaches Wed night through Thu as the front passes.

This could be slower, however, depending upon the timing and
track of the passing offshore system.

The early morning forecast still suggest that the tropical
system will pass well southeast of nantucket. The most likely
impact from this system may 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.

Aviation 08z 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.

Today...

vfr most areas, although with patchy clouds. An area of
2000-2500 foot ceilings moves in from the east across eastern
ma and ri, with low clouds light showers drizzle. These low
conditions improve toVFR during the afternoon. East-northeast
winds become gusty across CAPE cod and islands, possibly the
south shore of eastern ma, then diminish toward evening.

Tonight...

high pressure over the maritimes will bring partial clearing to
the south coast, and mostly clear skies across the remainder of
southern new england. Light wind and temps near saturation will
allow patches of fog to form, causing a period of ifr CIGS vsbys
during the late night. East-northeast wind 10 to 15 kts.

Monday...

vfr with clearing skies along the south coast. East-northeast
wind gusting 20 to 25 kt along the coast.

Kbos terminal...

moderate confidence in low ceilings this morning.

Kbdl terminal...

high confidence in taf.

Outlook Monday night through Thursday ... Moderate confidence.

Monday night through Tuesday night:VFR.

Wednesday: mainlyVFR, with local MVFR possible. Slight chance
shra.

Wednesday night: MVFR ifr conditions possible. Chance shra,
patchy br.

Thursday: mainlyVFR, with local ifr possible. Chance shra.

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.

Long-fetch E NE winds will produce wind gusts 20 to 30 kt and
seas building to around 5-6 feet. High pressure centered over
the maritimes will maintain the ene wind through Monday,
maintaining the rough seas on the outer waters through that
time.

Wind gusts of 20 to 25 kt are likely on the southern waters
with 25 to 30 kt possible on the southern outer waters. Wind
gusts diminish Monday as the maritime high pressure expands
south.

The small craft advisory continues in effect. We extended the
advisory period through the day Monday. No other significant
changes were made.

Outlook Monday night through Thursday ... Moderate confidence.

Monday night: winds less than 25 kt. Seas up to 5 ft.

Tuesday: winds less than 25 kt. Areas of seas approaching 5 ft.

Tuesday night: winds less than 25 kt. Areas of seas approaching
5 ft. Local visibility 1 to 3 nm.

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

Wednesday night: winds less than 25 kt. Areas of seas
approaching 5 ft. Chance of rain showers, patchy fog. Areas of
visibility 1 to 3 nm.

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

Box watches warnings advisories
Ct... None.

Ma... None.

Ri... None.

Marine... Small craft advisory from 8 am this morning to 11 am edt
Monday for anz232>234.

Small craft advisory from 10 am this morning to 6 pm edt this
evening for anz231-236.

Small craft advisory from 10 am this morning to 5 am edt
Monday for anz235-237.

Small craft advisory until 8 pm edt Monday for anz250-254>256.

Synopsis... Wtb evt
near term... Wtb
short term... Wtb
long term... Evt
aviation... Wtb evt
marine... Wtb evt


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NWPR1 - 8452660 - Newport, RI 7 mi52 min NNE 5.1 G 8 62°F 65°F1024.6 hPa
QPTR1 - 8454049 - Quonset Point, RI 10 mi52 min NNE 15 G 19 64°F 73°F1025 hPa
PRUR1 13 mi46 min 61°F 58°F
NAXR1 - Narragansett Bay Reserve, RI 14 mi79 min NE 11 62°F 1025 hPa60°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 14 mi46 min NE 9.9 G 15 63°F 1025.4 hPa
CPTR1 - 8452944 - Conimicut Light, RI 20 mi46 min N 11 G 13 61°F 73°F1025.2 hPa
BUZM3 - Buzzards Bay, MA 21 mi64 min NNE 15 G 17 63°F 1024.4 hPa (+0.0)
FRXM3 22 mi52 min 62°F 59°F
FRVM3 - 8447386 - Fall River, MA 23 mi52 min 60°F 77°F1025.3 hPa
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 23 mi46 min NNE 9.9 G 12 62°F 1025 hPa
PVDR1 24 mi46 min N 6 G 8.9 1025.4 hPa
FOXR1 - 8454000 - Providence, RI 25 mi46 min ENE 7 G 8.9 60°F 71°F1025.1 hPa
NLNC3 - 8461490 - New London, CT 35 mi46 min NE 2.9 G 6 1024.5 hPa
44097 - Block Island, RI (154) 36 mi34 min 74°F4 ft
LDLC3 - New London Ledge CT - Ledge Light Weather 36 mi34 min N 14 G 18 60°F 1007.7 hPa56°F
MTKN6 - 8510560 - Montauk, NY 39 mi46 min 1024.2 hPa
BZBM3 - 8447930 - Woods Hole, MA 41 mi52 min 63°F 72°F1024.1 hPa
WAXM3 - Waquoit Bay Reserve, MA 49 mi79 min WNW 1.9 62°F 1024 hPa60°F

Wind History for Newport, RI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Newport, Newport State Airport, RI11 mi71 minNNE 810.00 miA Few Clouds61°F57°F90%1024.2 hPa
Block Island State Airport, RI20 mi68 minNNE 12 G 1910.00 miPartly Cloudy0°F0°F%1024 hPa
Providence, Theodore Francis Green State Airport, RI20 mi73 minN 810.00 miA Few Clouds59°F57°F93%1025.1 hPa
Westerly, Westerly State Airport, RI21 mi71 minN 410.00 miFair59°F57°F96%1024.6 hPa

Link to 5 minute data for KUUU

Wind History from UUU (wind in knots)
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Last 24hrN7N6N8N5N9NE8N9
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NW7W6N8N11NE12NE8NE8NE5NE8NE6----NE7N6--N6N6
1 day agoN3N4NW4--N3CalmCalmNW45CalmNW4CalmCalmCalmE5NW3Calm--------N9N6N7
2 days agoCalmCalmSW4S4S55S76--S9SW7S854--SW3------3--NW5--N4

Tide / Current Tables for Watson Pier, Boston Neck, Narragansett Bay, Rhode Island
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Westport River Entrance, Massachusetts Current
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Westport River Entrance
Click for Map
Sun -- 12:33 AM EDT     Moonrise
Sun -- 02:24 AM EDT     1.69 knots Max Flood
Sun -- 04:39 AM EDT     -0.00 knots Slack
Sun -- 06:03 AM EDT     Sunrise
Sun -- 07:02 AM EDT     -2.30 knots Max Ebb
Sun -- 10:38 AM EDT     0.00 knots Slack
Sun -- 02:50 PM EDT     1.49 knots Max Flood
Sun -- 03:48 PM EDT     Moonset
Sun -- 04:57 PM EDT     -0.00 knots Slack
Sun -- 07:26 PM EDT     -2.45 knots Max Ebb
Sun -- 07:29 PM EDT     Sunset
Sun -- 11:04 PM EDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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11.41.71.60.8-0.5-1.8-2.3-1.9-1.1-0.40.20.611.41.51.1-0.1-1.5-2.4-2.3-1.6-0.8-0

Weather Map and Satellite Images
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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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Boston, MA (7,2,3,4)
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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.