Saturday, February27, 2021
Privacy Policy
L-36.com

Marine Weather and Tides
Province, MA

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:16AMSunset 5:30PM Saturday February 27, 2021 4:32 PM EST (21:32 UTC) Moonrise 6:57PMMoonset 7:52AM Illumination 99% Phase: Waning Gibbous; Moon at 16 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
ANZ231
ANZ200


7 Day Forecast for Marine Location Near Province, MA
   Hourly   EDIT   Help
location: 41.99, -70.06     debug


Area Discussion for - Boston, MA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS61 KBOX 272046 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 346 PM EST Sat Feb 27 2021

SYNOPSIS. Rain will come to an end this afternoon as low pressure lifts through, though some drizzle may persist into the evening. Brief reprieve as high pressure builds in tonight. Rain returns Sunday into Monday, especially near the South Coast, as low pressure passes southeast of New England. A strong cold front brings a period of scattered snow showers Monday night, along with gusty winds and well below normal temperatures into Tuesday. Temperatures rebound back to near to above normal for mid to late in the week before a cooldown into the weekend. Mainly dry weather for the rest of the workweek, though turning unsettled by the weekend.

NEAR TERM /UNTIL 6 AM SUNDAY MORNING/.

Temperatures have risen well into the mid 40s across much of the region, with upper 30s in the higher elevations. As such, precipitation continues to fall as rain. The back edge of the precip shield has moved a bit faster than previously thought, already into western Worcester county/exiting Hartford county at 230 PM. The steady rain will continue until the back edge of precipitation arrives, around 2-4 PM for western MA/CT and 5-7 PM for eastern MA/RI. However, while model soundings indicate moisture quickly exiting above 900 mb (bringing an end to the steady rain) the lowest 2,000 ft remain saturated for several more hours. This will lead to some drizzle continuing into the evening along with some dense fog and low clouds. The column dries out more overnight as the shortwaves lifts northeast and moderate mid level ridging builds in. It will be short lived, however, as clouds fill back in by Sunday morning ahead of the next disturbance. Low temps will be several degrees warmer than the night previous, in the upper 20s (high elevations) to upper 30s (coastal plain).

SHORT TERM /6 AM SUNDAY MORNING THROUGH SUNDAY NIGHT/.

The main adjustment with this forecast update was to slow down onset of rain showers on Sunday a bit. A warm front lifts north associated with the surface low moving out of the Great Lakes into Canada. This will keep temperatures quite mild during the day and allow it to be an all rain event. Rain arrives by early to mid afternoon, spreading northeast by late afternoon. Along with warm air advection we have dynamic support from a 30-35 kt low level jet which moves overhead on the time timeline. A secondary low forms along the frontal boundary near or just south of southern New England late Sunday into Monday which will focus better forcing along the south coast or offshore, so expecting the highest rainfall totals along the south coast with lesser amounts toward northern New England. Cold front doesn't come through until later in the day on Monday, so low temperatures overnight will be limited by very mild dewpoints . we should remain above freezing everywhere.

LONG TERM /MONDAY THROUGH SATURDAY/.

Highlights .

* Arctic front brings a period of brief snow bursts/snow squalls Mon night, gusty NW winds and well below normal temps Mon night into Tues. Gale-force gusts and freezing spray likely on the waters.

* Temperatures rebound back into the 40s Wed into Thurs.

* Turning cooler Fri into the weekend.

Details:

Monday:

Lingering showers along a cold front, mainly for SE MA into RI and our southern waters, should be clearing into the offshore waters by the early afternoon. NW winds and drier conditions should ensue for the afternoon, preceding a strong Arctic front for Monday night (see below). Highs mainly in the 40s, with a few lower 50s across eastern RI and SE MA/Cape and Islands.

Monday Night into Tuesday:

**Arctic Frontal Snow Bursts/Squalls Possible Mon Nite** **Gusty NW Winds brings low wind chills Mon Nite, Cold Tuesday**

Mon night into Tues looks to be the most active in this long-term forecast period. A lobe of the tropospheric polar vortex traverses SE through New England Mon night into Tues, with its Arctic surface cold front moving through mainly during the evening and overnight hrs. Though it is brief, it ushers in a significant shot of cold air (about -35 to -38C at 500 mb, -16 to -20C @ 925 mb). This should bring a period of isolated to scattered snow bursts/snow squalls Monday night, increasingly gusty winds overnight into Tues, and well- below normal temperatures for early March Mon night into Tues.

1/ Arctic Front and Isolated Snow Showers/Squalls

Arctic front looks to progress through SNE mainly during the post-PM commute period into the overnight (00-06z). Most models depict some very limited QPF (a few hundredths at best) with the frontal passage. Fairly robust signals for convective snow bursts and possible snow squalls centered in this timeframe, including NAM- based snow squall parameter values in excess of 2 units, owing to nearly dry adiabatic lapse rates given strong CAA. The depiction of a strong isallobaric rise/fall couplet and CAPE values around 50 J/kg or so supports this risk, as does the strong background dynamics associated with the TPV. The shallow instability/CAPE in a saturated dendrite growth region would support brief but locally intense snow showers. Though brief low-visibility snow showers/squalls are possible, with up to an inch of new snow falling in a short period of time, given the timing more into the late evening hours and less vehicle traffic it's questionable if we'll really see any impact from these. Have carried 20-25 PoPs for isolated/scattered snow showers.

2/ Gusty Winds

Strong cold advection should begin to steepen lapse rates and promote good mixing even into the overnight hours. Model soundings even during the overnight suggest mixing potentially as deep as 800 mb! Momentum transfer suggests winds at the top of the mixed layer may support wind headlines. Not yet confident to hoist any wind advisories as yet but may need to be considered later. However think its main effect would be to produce low wind chills for overnight/early Tues AM (5 to 10 below in northern/western MA and the terrain, around 0 for the Hartford-Boston metros, and low single digits above SE MA/RI).

Expect winds to become increasingly gusty late in the overnight and continuing into a good part of Tuesday until the pressure gradient starts to slacken. Showed gusts in the 35 to 45 mph range similar to the 90th percentile NBM wind gusts and close to Advisory levels, peaking thru the first half of Tues. Offered a slow decrease in gusts for the afternoon as the gradient slackens and mixed winds diminish. Winds and gusts should diminish even further for the evening.

3/ Temperatures

Sharp cold advection post-frontal should cause temps to plummet into the single numbers to teens above zero - on the milder end of guidance given mixing from winds.

Highs Tuesday in the 20s to low 30s, though the winds/gusts will make it feel like the single digits to the teens, with mid teens wind chills across Cape Cod.

Wednesday into Thursday:

The shot of below normal temperatures is brief with SW return flow resuming on Wednesday and continuing into Thursday. Under high pressure and mostly clear conditions, highs in the 40s should again be common for much of SNE with lows in the 20s to near freezing.

Friday into the Weekend:

Forecast confidence then diminishes for late week/weekend. There is some indication of a southern-stream trough interacting or potentially becoming in phase with digging northern stream energy over eastern Canada. This could offer coastal storminess into the weekend, but too much uncertainty limits predictability at this point.

AVIATION /20Z SATURDAY THROUGH THURSDAY/. Forecaster Confidence Levels.

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

This afternoon . High confidence in trends, moderate confidence in timing

IFR conditions will continue to fall to LIFR as rain falls this afternoon. This is potential for dense fog across the interior where the rain will help erode the snowpack. Winds S to SE at 5-10 kts will turn out of the SW this evening. Only exception is along the coastal plain where as a strong low level jet moves through could have some gusty winds mix down. Expecting gusts of 20-25 kts.

Tonight . High confidence in trends moderate in timing

Conditions improve to VFR from west to east as a high pressure builds in. Some patchy fog is possible across the CT River Valley. Winds will be light out of the W/NW.

Sunday and Sunday night . High confidence

VFR to start with increasing low to mid level clouds during the late afternoon/evening. Should see conditions deteriorating to MVFR and localized IFR as light rain spreads in. Light and variable winds to start shifting to the SE during the afternoon. Rain continues overnight.

KBOS TAF . High confidence in trends, but moderate in timing of MVFR/IFR. Cannot rule out LIFR this afternoon with SE winds.

KBDL TAF . Moderate confidence in TAF.

Outlook /Monday through Thursday/ .

Monday: Mainly VFR, with local IFR possible. Breezy.

Monday Night: Mainly VFR, with local IFR possible. Strong winds with areas of gusts up to 40 kt. Isolated SHSN.

Tuesday: VFR. Strong winds with areas of gusts up to 45 kt.

Tuesday Night: VFR. Windy with local gusts up to 30 kt.

Wednesday through Wednesday Night: VFR. Breezy.

Thursday: VFR.

MARINE.

Tonight . High confidence

Winds shifting to the SW/W by this evening as the system exits. Winds shift to the NW overnight. The strong winds diminish tonight as high pressure builds in. Waves 5-9 feet diminish by Sunday morning.

Sunday and Sunday night . High confidence

Light and variable winds during the morning shift to the SE during the afternoon and increasing as the next system moves in. Waves 3-5 feet across the outer and southern waters, increasing 5-7 feet for a time Sunday night.

Outlook /Monday through Thursday/ .

Monday: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Seas up to 5 ft. Chance of rain showers.

Monday Night: Strong winds with gusts up to 40 kt. Rough seas up to 12 ft. Freezing spray, isolated snow showers. Local visibility 1 nm or less.

Tuesday: Strong winds with gusts up to 45 kt. Rough seas up to 14 ft. Freezing spray.

Tuesday Night: Moderate risk for Small Craft Advisory winds with gusts up to 30 kt. Areas of rough seas. Freezing spray.

Wednesday: Moderate risk for Small Craft Advisory winds with gusts up to 25 kt. Local rough seas.

Wednesday Night: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Local rough seas.

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

TIDES/COASTAL FLOODING. Tides are astronomically high Monday, with Boston at 11.0 FT MLLW (12:36 PM), Nantucket 3.6 FT MLLW (12:02 PM), and Providence at 5.0 FT MLLW (9:23 AM). Current expectation is for a surge of less than one foot along the south coast, and perhaps around 1 foot along eastern MA coast, which would keep the total water level below the minor flood category for both coasts.

In addition, winds are expected to shift to the W/NW in the morning as a cold front moves offshore, lessening the potential along E MA coast. If front ends up slowing down, it is possible we could see minor splashover (sub-Coastal Flood Advisory level) along both coasts, but that seems to be a worst case scenario right now.

Does not appear to be a prolonged period of strong enough S/SE winds to build up seas offshore more than 4-5 FT, so beach erosion is not expected to be an issue right now either.

BOX WATCHES/WARNINGS/ADVISORIES. CT . None. MA . None. RI . None. MARINE . Gale Watch from Monday evening through Tuesday evening for ANZ230>237-250-251-254>256. Small Craft Advisory until 7 PM EST this evening for ANZ232>234. Small Craft Advisory until 1 AM EST Sunday for ANZ231-251. Small Craft Advisory until 7 PM EST Sunday for ANZ235-237-256. Gale Warning until 7 PM EST this evening for ANZ250-254-255.

SYNOPSIS . Loconto/BW NEAR TERM . BW SHORT TERM . BW LONG TERM . Belk/Loconto AVIATION . Loconto/BW MARINE . Loconto/BW TIDES/COASTAL FLOODING .


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
44018 - SE Cape Cod 30NM East of Nantucket, MA 16 mi23 min S 23 G 29 44°F 41°F1012.6 hPa43°F
44090 18 mi37 min 38°F3 ft
CHTM3 22 mi45 min S 16 G 24 46°F 40°F1014.5 hPa
44020 - NANTUCKET SOUND 36 mi23 min SSW 12 G 18 37°F
WAXM3 - Waquoit Bay Reserve, MA 37 mi48 min SE 7 46°F 1015 hPa46°F
44013 - BOSTON 16 NM East of Boston, MA 40 mi23 min S 9.7 G 14 42°F 39°F1014.2 hPa41°F
44029 - Buoy A0102 - Mass. Bay/Stellwagen 46 mi89 min S 18 G 21 42°F 6 ft1013.5 hPa
BZBM3 - 8447930 - Woods Hole, MA 46 mi45 min 47°F 37°F1014.5 hPa
NTKM3 - 8449130 - Nantucket Island, MA 49 mi45 min S 14 G 19 47°F 39°F1015.4 hPa

Wind History for Nantucket Island, MA
(wind in knots)    EDIT      (on/off)   Help
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
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
Last
24hr
SE4
G7
S2
G5
E3
SE4
SE2
S5
G8
S3
G6
S4
G8
SE6
SE4
G11
S3
G8
SE5
G9
SE7
G11
SE8
G15
SE11
G15
SE11
G16
SE11
G18
SE13
G17
SE10
G16
SE9
G15
SE9
G16
SE11
G19
SE11
G19
SE12
G17
1 day
ago
W8
G15
W5
G13
W3
G7
W4
G8
W6
G10
NW8
G16
NW9
G17
NW7
G15
NW6
G14
NW9
G12
NW6
G12
NW5
G10
NW5
G10
NW8
G12
NW8
G13
NW6
G14
NW7
G13
NW11
G15
NW8
G13
NW7
G11
N4
G8
NE5
NE3
SW6
G9
2 days
ago
SW9
G16
SW7
G13
S8
G12
SW8
G12
SW10
G14
SW11
G18
SW8
G14
S9
G13
SW7
G17
SW8
G19
SW9
G14
SW7
G13
W10
G18
W9
G16
W8
G19
NW11
G17
NW11
G20
NW9
G19
NW8
G15
NW10
G14
NW9
G12
NW6
G9
NW10
G14
NW9
G14

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Provincetown Municipal Airport, MA8 mi37 minS 15 G 245.00 miLight Rain Fog/Mist46°F46°F100%1014.1 hPa
Chatham, Chatham Municipal Airport, MA20 mi41 minS 10 G 202.00 miLight Rain Fog/Mist46°F44°F93%1015.5 hPa
Hyannis, Barnstable Municipal-Boardman Airport, MA24 mi37 minS 13 G 262.00 miLight Rain Fog/Mist47°F46°F97%1014 hPa

Link to 5 minute data for KPVC

Wind History from PVC (wind in knots)
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
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
Last 24hrNE3E3E6SE6SE6S8S7S9S12S11
G15
S8S6S8S9SE9
G17
SE10
G18
SE13SE10SE12
G18
SE13
G18
SE13
G21
SE13
G20
S18
G29
S15
G24
1 day agoW12W10W11W14
G22
W16
G21
NW18
G24
NW15
G21
W13
G20
W14W14NW12
G18
NW14NW14NW14NW11NW14NW12NW9NW10NW11NW8N7NE5Calm
2 days agoSW18
G26
SW14SW16SW18
G22
SW17
G23
SW20
G25
SW17
G22
SW17SW16
G22
SW17
G24
SW13SW15W14W21
G29
W21
G28
NW21
G29
NW21
G27
NW17
G22
NW16
G23
NW16NW10NW12
G19
W12W8

Tide / Current Tables for Cape Cod Lighthouse, SE of, Cape Cod, Massachusetts
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Cape Cod Lighthouse
Click for Map
Sat -- 03:19 AM EST     Full Moon
Sat -- 05:04 AM EST     -0.08 feet Low Tide
Sat -- 06:17 AM EST     Sunrise
Sat -- 06:51 AM EST     Moonset
Sat -- 11:18 AM EST     8.82 feet High Tide
Sat -- 05:28 PM EST     Sunset
Sat -- 05:35 PM EST     -0.83 feet Low Tide
Sat -- 05:57 PM EST     Moonrise
Sat -- 11:48 PM EST     8.22 feet High Tide
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
7.46.14.42.40.7-0.10.5246.17.88.88.57.35.33.10.9-0.6-0.70.42.34.46.47.8

Tide / Current Tables for Provincetown, Massachusetts (2)
   EDIT      (on/off)   Help   One Week of Data
Provincetown
Click for Map
Sat -- 03:19 AM EST     Full Moon
Sat -- 05:12 AM EST     -0.10 feet Low Tide
Sat -- 06:18 AM EST     Sunrise
Sat -- 06:51 AM EST     Moonset
Sat -- 11:22 AM EST     10.48 feet High Tide
Sat -- 05:28 PM EST     Sunset
Sat -- 05:42 PM EST     -0.98 feet Low Tide
Sat -- 05:57 PM EST     Moonrise
Sat -- 11:52 PM EST     9.77 feet High Tide
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
8.87.45.43.11-0.10.42.24.579.210.410.28.86.53.91.3-0.5-0.90.32.557.49.2

Weather Map
       (on/off)   Help Weather Map
wmap_A
GEOS Local Image of    EDIT
NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
Link to Loop

Other links: GEOS-West     Contential US     Full GOES-East
Ground Weather Radar Station




Cookie Policy:
This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. 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. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. Google supplies the ads on this site. Because I do not track who you are, I cannot customize how these ads are served. They may be personalized to improve the ad experience. If you do not want personalized ads, please adjust the settings on the Google site HERE. NOTE: The best I can determine, this site is not subject to CCPA but I am doing my best to comply 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 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.