Monday, January27, 2020
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Marine Weather and Tides
Narragansett Pier, RI

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 7:00AMSunset 4:55PM Monday January 27, 2020 9:49 AM EST (14:49 UTC) Moonrise 9:51AMMoonset 8:40PM Illumination 7% Phase: Waxing Crescent; Moon at 2 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- 716 Am Est Mon Jan 27 2020
Today..W winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft.
Tonight..NW winds 5 to 10 kt. Gusts up to 20 kt in the evening. Waves 2 to 3 ft.
Tue..NW winds 5 to 10 kt. Waves around 2 ft.
Tue night..NW winds 5 to 10 kt. Waves around 2 ft.
Wed and Wed night..N winds 5 to 10 kt. Waves around 2 ft.
Thu through Fri night..NW winds 5 to 10 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 716 Am Est Mon Jan 27 2020
Synopsis for massachusetts and rhode island coastal waters.. Low pres will remain nearly stationary over the maritimes Mon and Tue. High pres builds over eastern canada Wed, then into northern new eng 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 Narragansett Pier, RI
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location: 41.44, -71.43     debug


Area Discussion for - Boston, MA
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FXUS61 KBOX 271138 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 638 AM EST Mon Jan 27 2020

SYNOPSIS. Varying amounts of clouds much of the week ahead along with mainly dry weather. Cooler weather overspreads the area Monday and Tuesday with colder air to follow Tuesday night into Thursday. Temperatures begin to moderate Friday. There is the potential for a storm to impact the region sometime this weekend, though it remains far from a certainty at this point.

NEAR TERM /THROUGH TONIGHT/.

645 am update .

Main update this morning to expand coverage of light flurries across eastern MA. Lots of low level dry air (dewpoint depressions of 10-15 degrees) and any flakes that make it to the ground shouldn't accumulate given warmer surface temps.

Previous Discussion .

Northern stream short wave approaches the region from the west today providing cyclonic flow and lots of clouds especially inland and the high terrain with less clouds across the coastal plain. Not much moisture from this feature so any snow showers/flurries should be confined to the upslope regions of the Berkshires and possibly the Worcester Hills. Although with lots of dry air below cloud bases any activity should be fairly localized. Otherwise the remainder of the region should remain dry. Not as mild as Sunday with 850 mb temps down to about -6C today. Although well mixed boundary layer and some downslope WNW wind component should support highs of 40-45, except upper 30s high terrain which is still 5-10 degs above normal. A modest WNW wind will make it feel a bit cooler.

SHORT TERM /TUESDAY/. 235 AM Update .

Tonight .

Dry weather continues behind departing short wave along with decreasing clouds after sunset. Weak cold air advection behind the trough with 925 mb temps cooling from about -2C at 00z to -4C by 12z Tue. Brisk NW winds at sunset will diminish as boundary layer likely decouples except in the urban areas, high terrain and Cape Cod/Islands should be enough pres gradient for at least some wind. Cooler but lows still a few degs above normal with low temps in the 20s, except 30-35 in the urban areas and Cape Cod/Islands.

Tuesday .

Dry weather likely prevails with next potent northern short wave not approaching the region until Tue night. The only exception to dry weather may be across the outer Cape including Nantucket and Cape Ann if winds have enough northerly component to generate some ocean effect snow (OES) showers. All Hi Res guidance hints at this OES potential. 925 mb temps cool a bit more to about -3C, supporting highs from the upper 30s to lower 40s, mid 30s high terrain. Still a few degs above normal. Regarding cloud cover, breaks of sunshine in the morning likely give way to diurnal clouds with cooling temps aloft and cyclonic flow. Clouds most abundant over Cape Cod and Nantucket with winds becoming northerly and cold advection across the relatively warm ocean waters.

LONG TERM /TUESDAY NIGHT THROUGH SUNDAY/. Highlights .

* Generally dry with near-slightly above normal temps Tue through Fri

* Potential storm next weekend, but uncertainty is high

Details .

Tuesday night through Friday .

Another remarkably quiet week upcoming which continues clear through at least Friday under an incoming surface high and mid level ridging. Late Tuesday night into Wednesday will be our only chance at some precip, over Cape Cod and the islands. We'll likely be dealing with some ocean enhanced clouds and snow showers during the evening and overnight hours as a weak shortwave rotates through and we have good moisture in the low levels. By Wednesday night winds before more northerly, but the moisture is gone. That leaves us with sunny skies Wednesday/Thursday and partly sunny skies on Friday as SW flow on the backside of the ridge brings in more moisture. It also brings in milder air, so after our coldest day on Thursday (highs in the low 30s) Friday will be quite a bit warmer, in the low 40s.

Next Weekend .

There remains a high degree of uncertainty with next weekend's potential storm system. The key word is "potential." Possibilities range from a rainy inside runner to a significant snow storm to the chance that we see nothing more than a weak frontal wave that stays out to sea. A lot rides on whether a couple of northern and southern stream disturbances can phase and bring the right combo of moisture and cold air together. At the moment all options are on the table and ensemble spread continues to indicate the possibility of a track favorable for southern New England precip. Another complicating factor for those craving some snow will be the warmer than average antecedent airmass; highs on Friday and Saturday will be in the low 40s so ptype with any system is uncertain. Stay tuned!

AVIATION /12Z MONDAY THROUGH FRIDAY/. Forecaster Confidence Levels .

Low - less than 30 percent. Moderate - 30 to 60 percent. High - greater than 60 percent.

12z update .

Short Term . High confidence.

Today .

Cigs BKN-OVC040-050 today. Mainly dry weather with any light snow showers/flurries confined to western MA. SW winds this morning becoming west this afternoon.

Tonight .

Decreasing clouds with VFR. Modest WNW winds.

Tuesday .

VFR to start but then MVFR cigs develop over high terrain and also along eastern MA coast from Cape Ann to Cape Cod to Nantucket along with isolated -SHSN.

KBOS Terminal . High confidence in TAF.

KBDL Terminal . High confidence in TAF.

Outlook /Tuesday night through Thursday/ .

Tuesday Night through Wednesday: VFR.

Wednesday Night through Thursday: VFR. Breezy.

Thursday Night through Friday: VFR.

MARINE. Short Term /through Tuesday/ . High confidence.

Today . SW winds 15-20 kt with gusts up to 25 kt then becoming west at the same speeds this afternoon. Dry weather and good vsby.

Tonight . light NW winds along with dry weather and good vsby.

Tuesday . NNW winds 10-15 kt. Scattered rain/snow showers eastern waters from Nantucket to Cape Cod to Cape Ann. Mainly dry elsewhere.

Outlook /Tuesday Night through Friday/ .

Tuesday Night: Winds less than 25 kt. Areas of seas approaching 5 ft. Slight chance of snow showers. Areas of visibility 1 to 3 nm.

Wednesday: Winds less than 25 kt. Areas of seas approaching 5 ft.

Wednesday Night: Winds less than 25 kt. Local rough seas.

Thursday: Winds less than 25 kt. Areas of seas approaching 5 ft.

Thursday Night: Winds less than 25 kt. Seas locally approaching 5 ft.

Friday: Winds less than 25 kt.

BOX WATCHES/WARNINGS/ADVISORIES. CT . None. MA . None. RI . None. MARINE . Small Craft Advisory from 10 AM this morning to 5 PM EST this afternoon for ANZ232>234. Small Craft Advisory until 7 PM EST this evening for ANZ235- 237-250-254>256. Small Craft Advisory until 5 PM EST this afternoon for ANZ251.

SYNOPSIS . Nocera/BW NEAR TERM . Nocera/BW 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
NWPR1 - 8452660 - Newport, RI 7 mi49 min 38°F 37°F1003.8 hPa (+0.0)
QPTR1 - 8454049 - Quonset Point, RI 10 mi55 min 37°F 39°F1004.1 hPa
PRUR1 13 mi49 min 38°F 30°F
NAXR1 - Narragansett Bay Reserve, RI 14 mi64 min W 4.1 37°F 1004 hPa30°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 14 mi49 min 38°F 1004.5 hPa (+0.3)
CPTR1 - 8452944 - Conimicut Light, RI 20 mi49 min 36°F 39°F1003.8 hPa
BUZM3 - Buzzards Bay, MA 21 mi49 min W 18 G 19 39°F 1004.4 hPa (+0.0)
FRXM3 22 mi55 min 37°F 31°F
FRVM3 - 8447386 - Fall River, MA 23 mi55 min 37°F 40°F1004.1 hPa
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 23 mi49 min 37°F 1003.9 hPa (+0.3)
PVDR1 24 mi49 min 37°F 1004 hPa (+0.0)30°F
FOXR1 - 8454000 - Providence, RI 25 mi49 min 38°F 39°F1003.8 hPa (+0.0)
NLNC3 - 8461490 - New London, CT 35 mi49 min 39°F 42°F1004.5 hPa (+0.4)
44097 - Block Island, RI (154) 36 mi19 min 44°F6 ft
LDLC3 - New London Ledge CT - Ledge Light Weather 36 mi39 min W 20 G 24 39°F 1001.8 hPa32°F
MTKN6 - 8510560 - Montauk, NY 39 mi55 min 39°F 40°F1005 hPa
BZBM3 - 8447930 - Woods Hole, MA 41 mi55 min 39°F 39°F1004.1 hPa
WAXM3 - Waquoit Bay Reserve, MA 49 mi64 min SW 2.9 39°F 1004 hPa31°F

Wind History for Newport, RI
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Newport, Newport State Airport, RI11 mi56 minWSW 610.00 miOvercast38°F28°F68%1003.6 hPa
Block Island State Airport, RI20 mi53 minW 1110.00 miOvercast39°F32°F76%1004.9 hPa
Providence, Theodore Francis Green State Airport, RI20 mi58 minW 910.00 miMostly Cloudy36°F28°F76%1003.7 hPa
Westerly, Westerly State Airport, RI21 mi56 minWSW 810.00 miPartly Cloudy41°F28°F62%1004.7 hPa

Link to 5 minute data for KUUU

Wind History from UUU (wind in knots)
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Last 24hrW9W85SW12
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55W7W6W4Calm45443W4333SW6446W6
1 day agoE14
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5Calm3SW3SW6SW6W4W9W12NW9W9
2 days agoN4N43N7NE10NE6S3E3E6NE5NE5NE6NE4NE4NE4E5NE5NE5NE6NE7NE7E9E9E10

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
Mon -- 12:27 AM EST     -2.28 knots Max Ebb
Mon -- 04:46 AM EST     0.00 knots Slack
Mon -- 07:01 AM EST     Sunrise
Mon -- 08:01 AM EST     2.03 knots Max Flood
Mon -- 08:48 AM EST     Moonrise
Mon -- 10:10 AM EST     -0.00 knots Slack
Mon -- 12:39 PM EST     -2.50 knots Max Ebb
Mon -- 04:43 PM EST     0.00 knots Slack
Mon -- 04:53 PM EST     Sunset
Mon -- 07:39 PM EST     Moonset
Mon -- 08:22 PM EST     2.41 knots Max Flood
Mon -- 10:45 PM EST     -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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-2.2-2.2-1.8-1.2-0.60.211.721.60.3-1.3-2.3-2.5-2-1.3-0.60.211.82.42.21.2-0.4

Weather Map
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wmap_A
GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Boston, MA (9,2,3,4)
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Ground Weather Radar Station Boston, MA
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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 numerous 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.