Friday, December6, 2019
Privacy Policy
L-36.com


Marine Weather and Tides
Narragansett Pier, RI

Version 3.4
NOTICE
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.
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 6:55AMSunset 4:17PM Friday December 6, 2019 7:35 AM EST (12:35 UTC) Moonrise 2:36PMMoonset 2:03AM Illumination 71% Phase: Waxing Gibbous; Moon at 9 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
    EDIT      (on/off)   Help
ANZ236 Narragansett Bay- 716 Am Est Fri Dec 6 2019
.small craft advisory in effect through this evening...
Today..W winds around 10 kt with gusts up to 20 kt, becoming sw 15 to 20 kt with gusts up to 30 kt this afternoon. Waves 2 to 4 ft. Rain likely this afternoon.
Tonight..W winds 15 to 20 kt, becoming nw 10 to 15 kt after midnight. Gusts up to 30 kt. Waves 2 to 4 ft.
Sat..NW winds 5 to 10 kt. Waves around 2 ft.
Sat night..NW winds 5 to 10 kt, diminishing to around 5 kt after midnight. Waves 1 foot or less.
Sun and Sun night..S winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft.
Mon..S winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 4 ft. Showers likely. Vsby 1 to 3 nm.
Mon night..S winds 15 to 20 kt with gusts up to 30 kt. Waves 3 to 5 ft. Showers likely. Vsby 1 to 3 nm.
Tue and Tue night..SW winds 15 to 20 kt, becoming W 10 to 15 kt. Gusts up to 25 kt. Waves 2 to 4 ft. Showers likely. 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 Fri Dec 6 2019
Synopsis for massachusetts and rhode island coastal waters.. Stiff nw winds will blow early this morning behind an exiting cold front. A fast moving low pres system will approach from the west today, sweeping across the waters tonight. Large high pres then builds in from the west Sat into Sat night. The high pres system moves off the coast Sun as a slow moving cold front approaches from the west Mon into Tue. 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
   Hourly   EDIT   Help
location: 41.44, -71.43     debug


Area Discussion for - Boston, MA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS61 KBOX 061202 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 702 AM EST Fri Dec 6 2019

SYNOPSIS. Clouds will increase ahead of a fast-moving clipper system that will push through with periods of light snow this afternoon and early evening. Best chance of seeing light accumulations is along and north of the MA turnpike. The East Slopes of the Berkshires could see upwards of 2 inches. Colder, drier air moves in Friday night and Saturday as high pressure brings dry weather for the weekend. The high moves offshore Sunday, starting a return flow of milder and moist air for the first half of the week. This will bring off and on rain for Monday and Tuesday. A cold front moves through Tuesday night, followed by a return to cooler temperatures for Wednesday and Thursday.

NEAR TERM /UNTIL 6 PM THIS EVENING/.

7 AM Update .

Mid and high clouds increasing over Southern New England, while lower clouds remain to our west in NY/PA, roughly on a ROC-BFD line. Expect increasing sky cover this morning with the western NY/PA precip reaching us in the afternoon. No significant changes to the grids.

Previous Discussion .

***A CLIPPER SYSTEM IS EXPECTED TO BRING COATING TO AN INCH OF SNOW ESPECIALLY ALONG & NORTH OF THE MA TURNPIKE LATE THIS AFTERNOON INTO EARLY EVENING. LOCALLY 2-3 INCHES ARE POSSIBLE IN THE EAST SLOPES OF THE BERKSHIRES.***

Satellite shows clouds mostly clearing out early this morning, but it will be short lived. Looking upstream we see the deck of mid level clouds making its way toward southern New England. These will fill in from west to east by sunrise in western MA/CT and eastern MA by 9-10 AM.

These clouds precede a quick hitting clipper type system that will strength over the Great Lakes in the next several hours before crossing directly over southern New England with its surface arctic front from 21-03Z (4-10 pm). This system brings our next shot of snow and rain. At the upper levels we have good jet dynamics in play beneath the RRQ of a modest upper jet which will help increase synoptic lift while in the lower levels speed convergence on the front of a 50 kt LLJ will enhance precip formation. The very progressive nature of the storm should limit snowfall to generally late morning through early evening, with accumulations of only a coating to 2 inches for most, mainly along and north of the MA Pike, and perhaps some spots of 2-3 inches in the highest elevations of the Berkshires. Nearly all guidance is in favor of this solution, with the latest EPS giving a 0% chance of >3" in southern New England, and the 00Z HREF mean guidance trending down toward the synoptic models. Given the amounts expected, we will continue to message this with a Special Weather Statement highlighting the impact that it may have to the evening commute. Those in eastern/central MA will continue to be impacted by snow showers during the Friday evening rush hour which could cause some additional travel hazards. Winds will also become breezy as the pressure gradient tightens south of the low, mainly along the south coast and over the southern waters where mixing is better; winds gust 25-30 mph.

SHORT TERM /6 PM THIS EVENING THROUGH 6 PM SATURDAY/. Snow and rain showers should be tapering off in extreme eastern MA by 8-10 pm as the low center makes a hasty exit. Winds slowly but steadily decrease as a sprawling surface high moves in and the gradient relaxes. With this we also see post frontal NW winds begin to bring in much cooler air, though the breezy winds will likely limit much contribution from radiational cooling. Even so, temperatures dip into the teens to low 20s; warmer on the south coast.

Saturday colder and drier air funnels into the region as high pressure builds in, though cyclonic flow lingers aloft. Subsidence under this high will keep things dry and skies mostly clear, though there is still some question as to whether we'll see more diurnal clouds than are currently forecast given that tendency under cyclonic flow with CAA and daytime heating. Overall a very nice, if cold, day with high temperatures in the upper 20s (higher elevations) to low 30s.

LONG TERM /SATURDAY NIGHT THROUGH THURSDAY/. Big Picture .

Zonal flow over the weekend, but this changes early next week as a digging upper trough sweeps south from the Canadian Prairies into the USA Plains and Great Lakes. This digging trough turns the flow over the Eastern USA out of the south and southwest, drawing milder air up over us as well as increasing moisture. The trough axis then moves across our area Wednesday with drier air moving in.

Normal 500-mb heights in this area in early December are in the upper 540s and 550s. Forecast heights moderate to the higher/warmer side Sunday through Tuesday. These values then lower again Tuesday night through Thursday as the upper trough moves overhead. Expect a milder trend for early next week, and a return to colder temps midweek.

Mass fields and thermal fields in the models are similar through Monday but then show some model-to-model differences midweek. This means moderate to high confidence through the early week, then diminishing confidence midweek.

Daily Concerns .

Saturday night and Sunday .

High pressure builds over the region with sufficient subsidence to bring clearing skies and light wind. This will allow for radiational cooling Saturday night, With dew points in the upper single numbers and teens, that should allow temperatures to fall to similar values overnight . possibly around 20 near the coast.

The high pressure slides offshore Sunday, making room for milder air to move north. The milder air will move earliest at the higher levels, which may bring some mid and high clouds Sunday afternoon. Overall a fair day. Temps at 925 mb and 950 mb were used to represent the lingering cold air near the surface. Those values will support max sfc temps in the 30s to low 40s.

Increasing south to southwest flow Sunday night will bring increasing clouds. The flow itself will be strong with speeds increasing to 40-50 kt overnight. Not sure how much of this will reach the surface in gusts, but suspect the warm advection will work against any mixing.

The 00Z GGEM brings light precipitation into our area late at night, while the 00z GFS and ECMWF keep precipitation just south of us. Guidance is more aggressive with POP values. The forecast will trim values below 15 pct for most of the night based on the dry air forecast in the nucleation zone for Sunday night, as seen in BUFKit soundings.

With the warm advection in place, expect min temps in the early night followed by warming temps overnight. Temperatures will be above freezing all areas after midnight, so any late night precip should be as rain.

Monday-Tuesday .

Mild south-southwest flow will continue to bring warmer air and increased moisture. PW values will climb over 1 inch and RH fields show a deep column of moisture over us for Monday and Tuesday. Low level jet at 50-60 kt will support low level convergence and lift while also supplying the moisture. The GFS and ECMWF show a 150-kt upper level jet approaching on Monday. The GFS shows Srn New England in the left exit region for at least a part of the time while the ECMWF is a tad farther north. All of this points to good lift and good moisture both days, and a deep layer of above-freezing temps supports max sfc temps mainly in the 50s each day. Will forecast showers both days.

Another concern will be winds. A low level southerly jet of 50-60 kt will linger overhead through the period and may bring gusts of 30 to 40 mph down to the surface each day. Gridded guidance is much more conservative. The forecast will increase winds from the grid guidance closer to 25 kt/30 mph, and it may need to go higher in later forecasts.

The upper trough pushes a cold front through our area Tuesday night, with showers diminishing after passage.

Wednesday-Thursday .

Colder drier air moves in Wednesday. Cold advection will encourage mixing 35-45 mph winds to the surface in gusts. High pressure builds in by Thursday with fewer clouds and lighter winds. Mixing to 850 mb will tap -10C air Wednesday and -18C air Thursday. Will go with max temps 35-45 Wednesday and 20s to mid 30s Thursday.

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

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

Short Term /through Saturday/ . High confidence.

Today . VFR initially, but cigs will lower to MVFR along with brief periods of light to moderate snow 18z-00z. Expecting mainly rain across the Cape and Islands and a period of a rain/snow mix at PVD. Potential for brief periods of IFR across northern MA, including BOS, with any heavier snow bands moving through. Precipitation ends from west to east Friday evening.

Tonight . MVFR north of the Mass Pike, VFR to the south. Trend to VFR all areas between 00Z and 06Z with clearing skies after midnight.

Saturday . VFR. Light NW winds.

KBOS Terminal . High confidence in TAF. Moderate confidence after 18Z.

KBDL Terminal . High confidence in TAF.

Outlook /Saturday Night through Tuesday/ .

Saturday Night: Mainly VFR. Breezy. Patchy BR.

Sunday: VFR. Breezy.

Sunday Night: Mainly VFR. Windy with local gusts up to 30 kt. Patchy BR.

Monday: MVFR/IFR conditions possible. Windy with local gusts up to 30 kt. Chance SHRA.

Monday Night: Mainly MVFR, with local IFR possible. Windy with gusts up to 30 kt. SHRA likely.

Tuesday: Mainly MVFR, with local IFR possible. Windy with local gusts up to 30 kt. SHRA likely.

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

Today . NW winds decrease and become SW through the morning and early afternoon before increasing again tonight. Winds on the southern waters gust 25-35 kts this evening into tonight as a clipper low moves across CT/RI and southeast MA today. Vsby will lower to 1 mile or less in snow. Seas 3-4 ft.

Tonight . Gusty SW winds 25-35 kts decreasing through the night. Seas 8-10 ft on southern waters.

Saturday . Clear skies and light winds. Seas 3-5 ft.

Outlook /Saturday Night through Tuesday/ .

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

Sunday: Winds less than 25 kt. Seas less than 4 feet.

Sunday Night: Low risk for Small Craft Advisory winds with local gusts up to 30 kt. Areas of seas approaching 5 ft.

Monday: Low risk for gale force winds with gusts up to 35 kt. Local rough seas building to 5 to 10 feet. Chance of rain showers.

Monday Night: Moderate risk for gale force winds with gusts up to 35 kt. Rough seas up to 13 ft. Rain showers likely.

Tuesday: Low risk for gale force winds with gusts up to 35 kt. Rough seas up to 12 ft. Rain showers likely.

BOX WATCHES/WARNINGS/ADVISORIES. CT . None. MA . None. RI . None. MARINE . Small Craft Advisory until 7 AM EST Saturday for ANZ232>235- 237. Small Craft Advisory until midnight EST tonight for ANZ236. Small Craft Advisory until 10 AM EST Saturday for ANZ250. Small Craft Advisory until noon EST Saturday for ANZ254. Gale Warning from 5 PM this afternoon to midnight EST tonight for ANZ255-256.

SYNOPSIS . WTB/BW NEAR TERM . WTB/BW SHORT TERM . BW LONG TERM . WTB AVIATION . WTB/BW MARINE . WTB/BW


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NWPR1 - 8452660 - Newport, RI 7 mi66 min WSW 9.9 G 11 33°F 38°F1019.5 hPa
QPTR1 - 8454049 - Quonset Point, RI 10 mi66 min WSW 8 G 9.9 32°F 44°F1019.9 hPa
PRUR1 13 mi66 min 31°F 20°F
NAXR1 - Narragansett Bay Reserve, RI 14 mi111 min W 6 30°F 1019 hPa19°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 14 mi66 min W 5.1 G 9.9 31°F 1020.1 hPa
CPTR1 - 8452944 - Conimicut Light, RI 20 mi66 min SW 8.9 G 11 30°F 42°F
BUZM3 - Buzzards Bay, MA 21 mi36 min WNW 18 G 21 35°F 1020 hPa (+1.1)
FRXM3 22 mi66 min 33°F 22°F
FRVM3 - 8447386 - Fall River, MA 23 mi66 min 32°F 43°F1019.8 hPa
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 23 mi66 min WSW 12 G 13 33°F 1019.5 hPa
PVDR1 24 mi66 min SW 5.1 G 6 30°F 1019.8 hPa19°F
FOXR1 - 8454000 - Providence, RI 25 mi66 min WSW 4.1 G 5.1 29°F 44°F1019.6 hPa
NLNC3 - 8461490 - New London, CT 35 mi66 min WNW 2.9 G 5.1 31°F 50°F1019.8 hPa
44097 - Block Island, RI (154) 36 mi36 min 51°F5 ft
LDLC3 - New London Ledge CT - Ledge Light Weather 36 mi36 min WNW 8.9 G 14 34°F 1016.6 hPa (+1.0)21°F
MTKN6 - 8510560 - Montauk, NY 39 mi66 min 37°F 44°F1020 hPa
BZBM3 - 8447930 - Woods Hole, MA 41 mi66 min 33°F 42°F1019.2 hPa
WAXM3 - Waquoit Bay Reserve, MA 49 mi111 min W 5.1 32°F 1019 hPa20°F

Wind History for Newport, RI
(wind in knots)    EDIT      (on/off)   Help
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
Last
24hr
W9
W9
G13
NW11
G15
NW14
G22
NW12
G24
W14
G18
NW13
G22
NW10
G20
NW14
G18
NW8
G15
W9
G12
NW14
G25
NW19
G29
NW13
G29
NW13
G22
W15
G19
NW10
G16
NW10
G14
W14
G18
W14
G17
NW8
G14
W7
G11
SW8
W8
G12
1 day
ago
SW6
SW7
G11
W5
G8
W6
G9
SW6
G9
W4
G7
W6
W7
G10
SW3
W10
W9
W10
W7
G10
W8
W10
NW6
2 days
ago
N16
G24
NW17
NW11
G14
NW12
G18
NW12
G17
W14
G21
NW14
G20
NW17
G21
NW15
NW9
G17
NW9
G15
NW8
G15
W10
G14
NW11
G14
W12
G16
W8
G12
W9
G13
NW8
G12
NW6
G9
NW7

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Newport, Newport State Airport, RI11 mi43 minW 710.00 miFair32°F19°F61%1019.6 hPa
Block Island State Airport, RI20 mi40 minW 1010.00 miFair35°F21°F57%1020.3 hPa
Providence, Theodore Francis Green State Airport, RI20 mi45 minSSW 610.00 miMostly Cloudy27°F19°F72%1019.7 hPa
Westerly, Westerly State Airport, RI21 mi43 minW 510.00 miFair33°F19°F56%1020.3 hPa

Link to 5 minute data for KUUU

Wind History from UUU (wind in knots)
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
Last 24hrW5W5NW11
G19
NW14
G22
NW12
G25
W16
G22
W13
G20
NW15
G25
W11
G19
NW14
G20
W9
G19
W9
G17
W16
G28
NW17
G27
NW12
G19
NW12
G24
NW10
G23
NW15
G20
W9
G17
W10
G18
W9
G16
W75W7
1 day agoW3W54W44W6W4SW4Calm3W56NW5W53W5NW3NW5W6W6W6W4W4W4
2 days agoNW14
G21
NW13
G20
NW10
G20
NW14
G19
NW12
G21
W13
G23
NW15
G23
NW13
G24
NW16
G23
NW13
G20
NW14
G19
NW10W10NW13
G19
W10NW11W7
G15
NW6NW8
G15
W4NW6CalmSW3Calm

Tide / Current Tables for Watson Pier, Boston Neck, Narragansett Bay, Rhode Island
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
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
   EDIT      (on/off)   Help   One Week of Data
Westport River Entrance
Click for Map
Fri -- 01:02 AM EST     Moonset
Fri -- 01:38 AM EST     2.22 knots Max Flood
Fri -- 03:54 AM EST     -0.00 knots Slack
Fri -- 06:19 AM EST     -2.23 knots Max Ebb
Fri -- 06:56 AM EST     Sunrise
Fri -- 10:53 AM EST     0.00 knots Slack
Fri -- 01:35 PM EST     Moonrise
Fri -- 02:07 PM EST     2.09 knots Max Flood
Fri -- 04:14 PM EST     Sunset
Fri -- 04:19 PM EST     -0.01 knots Slack
Fri -- 06:41 PM EST     -2.15 knots Max Ebb
Fri -- 11:00 PM EST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
1.42.12.21.4-0.1-1.5-2.2-2.1-1.7-1.2-0.60.10.91.62.11.70.5-1-2-2.1-1.7-1.2-0.7-0

Weather Map
       (on/off)   Help Weather Map
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 (7,2,3,4)
      (on/off)   Help

Ground Weather Radar Station Boston, MA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Cookie Policy:
This webiste uses cookies to save your settings. No personal information is saved. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. I do not keep site logs longer than I need to to keep bad actors off the site. Basically, I delete them after looking at them. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway.
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.