Thursday, December12, 2019
Privacy Policy
L-36.com


Marine Weather and Tides
North Eastham, MA

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 6:56AMSunset 4:12PM Thursday December 12, 2019 1:19 PM EST (18:19 UTC) Moonrise 5:44PMMoonset 8:13AM 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 Cape Cod Bay- 1105 Am Est Thu Dec 12 2019
This afternoon..NW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft.
Tonight..S winds around 5 kt, becoming se after midnight. Seas around 2 ft.
Fri..SE winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft.
Fri night..SE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Patchy fog. Rain. Vsby 1 to 3 nm.
Sat..SE winds 15 to 20 kt, becoming S 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Patchy fog. Rain. Vsby 1 to 3 nm.
Sat night..SW winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 3 to 5 ft. Rain likely.
Sun through Mon..W winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 6 ft.
Mon night..W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. A chance of snow and rain. Vsby 1 to 3 nm. 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 1105 Am Est Thu Dec 12 2019
Synopsis for massachusetts and rhode island coastal waters.. Large high pres will build across the waters, then will push offshore tonight. Low pres will approach from the southwest late Fri and Fri night, then moves across the waters Sat. A cold front crosses the waters Sunday, followed by another high pres system Mon. 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 North Eastham CDP, MA
   Hourly   EDIT   Help
location: 41.92, -70.03     debug


Area Discussion for - Boston, MA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS61 KBOX 121501 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA Issued by National Weather Service New York NY 1001 AM EST Thu Dec 12 2019

SYNOPSIS. High pressure will bring dry, cold conditions across the region today and tonight. The high moves east of the region Friday, bringing the risk for scattered light precipitation across western Massachusetts and northern Connecticut, which may begin as a very light wintry mix. Temperatures will gradually increase Friday night as winds become onshore. Low pressure will bring mainly rain Friday night and Saturday which will fall heavily at times. Dry and blustery conditions move in on Sunday, then colder air arrives Monday. Another system brings snow to start Monday night, then a wintry mix that will change to rain across the coastal plain, but remaining mixed rain and/or snow well inland into Tuesday. Dry and cold conditions return during Wednesday.

NEAR TERM /THROUGH TONIGHT/. 900 AM Update .

Clear skies dominate across the northeast.

Temps are warming through the 20s through 9 am.

Near term forecast pretty much on track at 14Z.

Previous Discussion .

Large high pressure building into the region today will result in sunny skies but cold temperatures. Temps should top out between 30 and 35 across most locations with some upper 20s in the high terrain.

SHORT TERM /FRIDAY THROUGH FRIDAY NIGHT/. * Risk for very light icing across parts of the interior Friday with the greatest threat across the CT River Valley

Tonight .

High pressure overhead this evening will allow for light winds and mainly clear skies this evening. This should result in temperatures quickly falling after sunset across the typically coldest outlying locations. Temps quickly drop into the teens this evening in many areas with light winds and snow cover. However, temps should level off or rise after midnight as clouds begin to increase from the west. This in response to high pressure moving off the coast and warm air advection commencing aloft.

Friday .

High pressure will continue to move east and away from the region as shortwave energy approaches from the southwest. This will induce a modest southwest LLJ and moisture return. The best forcing/moisture will reside across interior MA and CT, where some scattered light precipitation may develop. Ptype might be initially cold enough for a bit of very light snow across parts of the interior. However, warming aloft and limited saturation for ice nucleation may result in pockets of light freezing rain/freezing drizzle across the interior if temps remain below freezing for a time. The greatest risk for this will be across the CT River Valley, where high resolution model data indicates very light northerly surface winds persisting. Based on pattern recognition, guidance temps are likely too warm and it may take some time for temps to get above freezing even by Friday afternoon. If any icing occurs amounts will be very light, but it only takes a very small amount to create for hazardous travel. Something will have to examine more closely with latter model runs.

Meanwhile, south to southeast low level flow should allow the coastal plain to reach into the 40s. Mainly dry weather should also persist across eastern MA/RI for much of the day, although can not rule out a spot shower or two late.

LONG TERM /SATURDAY THROUGH WEDNESDAY/. Highlights .

* Temperatures will moderate Friday night as low pressure brings the potential for heavy rain & localized flooding on Saturday. Flooding risks may be increased with the snow melt.

* Leftover rain and/or snow showers linger well inland early Sunday. Strong northwest winds Sunday, especially in coastal areas with gusts up to 40 kts. Gale headlines will likely be needed across the waters.

* Dry and seasonably cold conditions Monday

* Next system approaches Monday night & Tuesday . Another round of snow before mixing with or changing to rain, but confidence remains low. Details .

Friday night and Saturday .

***Heavy Rain and Flood Potential on Saturday***

Low pressure exits the Maritimes Fri evening as low pressure develops across the mid Atlc states or near the Delmarva peninsula. Expect an increasing E-SE wind flow, which will bring deep moisture across the region. Temperatures will start off in the 30s well inland to 40-45 along the coast Fri evening, then the onshore winds will bring rising readings through the remainder of the night.

00Z models continue to signal a strong surge of deep layer moisture working up the coast. 00Z GEFS ensembles showing the potential of PWATs up to 3 to 4 SD above normal during Saturday across the coastal plain (1 to 1.5 inches). Overall model blend suggests QPF values from 0.5 inches across the CT valley ranging to 0.75 to 1 inch further E, highest along the immediate coast from 12Z-18Z Saturday, with another 0.1 to 0.3 inches Saturday afternoon. So, with this influx of heavy rainfall along with snowmelt thanks to the milder temperatures, the potential remains high for urban and poor drainage flooding especially across central and eastern areas. Will also monitor the potential for river level rises as well.

Expect SE winds to increase during the day especially across eastern areas and along the coast, with gusts up to 20 to 30 mph Saturday morning through around midday before briefly diminishing.

With the mild wind flow in place, expect temps on Saturday to top off in the mid-upper 40s well inland ranging to the mid 50s across the coastal plain.

Saturday night and Sunday .

***Strong winds Sunday***

Low pressure exits to northern New England Saturday night, then to the Maritimes and Newfoundland during Sunday. Rain will exit from south to north Sat night, though could see a mix with snow across the E slopes of the Berkshires after midnight. With the diminishing moisture, QPF amounts will decrease so there will be only light snow accumulations there.

Skies will become partly to mostly sunny across the coastal plain during the afternoon, while clouds linger further inland. With the low deepening across the Maritimes, down to around 980 hPa late Saturday night and Sunday, westerly winds will increase. Gusts will increase to 30 to 40 mph mainly across the higher inland terrain and along the coast. Temps will top off in the upper 30s to lower 40s across the higher terrain ranging to the upper 40s across the coastal plain. With the gusty winds, though, wind chills will be in the mid-upper 20s inland to the 30s elsewhere.

Expect strongest wind gusts across the coastal waters, so gale warnings remain likely.

Monday through Wednesday .

Progressive mid level steering pattern remains in place across the region, so will see changing weather conditions continue.

A mainly dry cold front moves offshore late Sunday night, so will see another surge of cold air working across the region to start off the work week. Highs on Monday will only reach the upper 20s to mid 30s well inland and across the higher terrain to the upper 30s to around 40 along the coast.

Another weather system will approaches Monday night, with another shot of snow to start, then milder air will start to work in during Tuesday which should cause the snow to mix with sleet and snow, then eventually rain. However, this far out, timing and track of the low and precipitation potential is still in question.

For now, looks like the precipitation should taper off late Tuesday night into Wednesday with continued cold temperatures.

AVIATION /15Z THURSDAY THROUGH MONDAY/. Forecaster Confidence Levels .

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

Short Term /through Friday Night/ .

Today . High confidence in VFR conditions. Lingering NW wind gusts up to 20 kt across some E coastal Mass terminals until 18Z then will diminish.

Tonight . High confidence. Mainly VFR conditions, but some MVFR cigs may arrive across parts of the interior toward daybreak.

Friday . Moderate to high confidence. MVFR to IFR conditions dominate across interior MA & CT with scattered light precipitation expected to develop. It may be cold enough for some very light snow and/or freezing drizzle. Greatest risk for freezing drizzle would be across the BAF and BDL terminals. Meanwhile, across eastern MA and RI marginal MVFR to VFR conditions expected with mainly dry weather.

KBOS Terminal . High confidence in TAF.

KBDL Terminal . High confidence in TAF.

Outlook /Saturday through Monday/ .

Friday Night: Mainly IFR, with local MVFR possible. Breezy. RA likely, FZRA likely, patchy BR.

Saturday: Mainly IFR, with areas MVFR possible. Windy with local gusts up to 30 kt. RA, patchy BR.

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

Sunday: Mainly VFR, with local MVFR possible. Windy with gusts up to 35 kt.

Sunday Night: VFR. Windy with gusts up to 35 kt.

Monday: VFR. Windy with local gusts up to 30 kt.

MARINE. Short Term /through Friday Night/ .

Today . High confidence. NW wind will diminish as high pressure builds in from the west. Wind gusts to 25 kt may linger through most of the day across the eastern waters.

Tonight and Friday . High confidence. High pressure will be in control of our waters tonight keeping winds/seas below small craft thresholds. High pressure moves east of the waters Fri, allowing southerly winds to increase with gusts of 20 to 25 knots developing during the afternoon. We also may see some marginal 5 foot seas develop across our outer waters, so SCA headlines will need to be considered.

Outlook /Saturday through Monday/ .

Friday Night: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Seas up to 5 ft. Rain likely. Local visibility 1 to 3 nm.

Saturday: Moderate risk for Small Craft Advisory winds with gusts up to 30 kt. Rough seas up to 11 ft. Rain. Local visibility 1 to 3 nm.

Saturday Night: Moderate risk for Small Craft Advisory winds with gusts up to 30 kt. Rough seas up to 12 ft. Rain likely.

Sunday through Sunday Night: Moderate risk for gale force winds with gusts up to 35 kt. Rough seas up to 13 ft.

Monday: Moderate risk for Small Craft Advisory winds with gusts up to 30 kt. Areas of rough seas.

BOX WATCHES/WARNINGS/ADVISORIES. CT . None. MA . None. RI . None. MARINE . Small Craft Advisory until 4 PM EST this afternoon for ANZ250- 251-254. Small Craft Advisory until noon EST today for ANZ255-256.




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
44090 17 mi50 min 45°F4 ft
44018 - SE Cape Cod 30NM East of Nantucket, MA 21 mi90 min WNW 14 G 19 29°F 4 ft1038.7 hPa (+1.1)11°F
44020 - NANTUCKET SOUND 32 mi40 min 14 G 18 42°F1039.1 hPa
WAXM3 - Waquoit Bay Reserve, MA 35 mi95 min WNW 5.1 33°F 1039 hPa20°F
44013 - BOSTON 16 NM East of Boston, MA 44 mi90 min WNW 12 G 16 29°F 46°F2 ft1038.6 hPa (+0.4)12°F
BZBM3 - 8447930 - Woods Hole, MA 44 mi50 min 31°F 42°F1039.2 hPa
NTKM3 - 8449130 - Nantucket Island, MA 44 mi50 min N 8 G 12 32°F 42°F1039 hPa

Wind History for Nantucket Island, MA
(wind in knots)    EDIT      (on/off)   Help
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
8
AM
9
AM
10
AM
11
AM
12
PM
Last
24hr
NW4
G9
NW3
W6
NW4
G8
W4
W5
G10
W6
G13
W9
G18
W4
G10
W9
G16
NW8
G18
NW12
G17
NW13
G22
NW13
G25
NW13
G21
NW9
G22
NW9
G22
NW11
G20
NW9
G19
NW12
G19
NW12
G18
N10
G18
NW11
G15
N10
G13
1 day
ago
SW8
G15
SW9
G17
SW9
G20
SW11
G16
SW7
G15
SW8
G14
SW7
G12
SW5
G11
SW5
G10
W4
G10
N8
G12
NW6
NW5
G8
N11
G17
NW9
G12
N12
G17
N8
G15
N14
G20
N12
G18
N11
G18
N13
G18
NW12
G17
NW8
G12
NW7
G10
2 days
ago
S9
G16
SE8
G13
S7
G14
S11
G15
S11
G18
S11
G22
S12
G20
S11
G25
S9
G24
S15
G23
S12
G23
S14
G28
S13
G24
SW11
G17
SW9
G18
SW9
G16
SW11
G17
SW9
G19
SW8
G17
SW9
G17
SW9
G17
SW8
G16
SW10
G15
SW10
G17

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Provincetown Municipal Airport, MA11 mi24 minNW 1310.00 miFair33°F17°F52%1039 hPa
Chatham, Chatham Municipal Airport, MA15 mi28 minNW 9 G 1710.00 miFair31°F18°F59%1038.9 hPa
Hyannis, Barnstable Municipal-Boardman Airport, MA21 mi84 minNNW 1110.00 miFair31°F16°F54%1038.7 hPa

Link to 5 minute data for KPVC

Wind History from PVC (wind in knots)
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
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
Last 24hrW8W8W7W8W10
G18
W12
G18
W13W13W10W18
G25
NW21
G28
NW16
G24
W21
G27
NW15
G24
NW19
G26
NW16
G22
NW16
G21
NW19
G27
NW17
G25
NW15
G22
NW16
G23
NW15NW12
G19
NW13
1 day agoSW18
G25
SW15
G22
SW13SW16
G21
SW15S14SW13W9W15
G18
NW14
G21
NW13NW13
G20
NW15
G18
NW12N19
G25
NW20
G27
NW18
G24
NW14NW12
G20
N9NW10NW13NW12W9
2 days agoS17
G25
S14
G22
------------S15
G23
S22
G29
S19
G25
SW22
G27
SW23
G31
SW18
G26
SW23
G32
SW18
G26
SW17SW16SW17
G23
SW19
G24
SW15
G22
SW18
G23
SW17
G22
SW20
G27

Tide / Current Tables for Wellfleet, Massachusetts
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Wellfleet
Click for Map
Thu -- 12:14 AM EST     Full Moon
Thu -- 05:15 AM EST     0.67 feet Low Tide
Thu -- 06:58 AM EST     Sunrise
Thu -- 07:13 AM EST     Moonset
Thu -- 11:09 AM EST     11.30 feet High Tide
Thu -- 04:09 PM EST     Sunset
Thu -- 04:44 PM EST     Moonrise
Thu -- 05:50 PM EST     -0.55 feet Low Tide
Thu -- 11:45 PM EST     9.95 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
9.37.95.93.81.80.71.23.15.68.110.311.310.89.374.41.90-0.50.62.85.37.79.5

Tide / Current Tables for Cape Cod Lighthouse, SE of, Cape Cod, Massachusetts
   EDIT      (on/off)   Help   One Week of Data
Cape Cod Lighthouse
Click for Map
Thu -- 12:14 AM EST     Full Moon
Thu -- 04:56 AM EST     0.51 feet Low Tide
Thu -- 06:58 AM EST     Sunrise
Thu -- 07:13 AM EST     Moonset
Thu -- 11:07 AM EST     8.61 feet High Tide
Thu -- 04:08 PM EST     Sunset
Thu -- 04:43 PM EST     Moonrise
Thu -- 05:31 PM EST     -0.42 feet Low Tide
Thu -- 11:43 PM EST     7.58 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
75.84.22.51.10.51.22.84.66.47.98.68.26.9531-0.2-0.30.92.54.36.17.3

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 (13,3,4,5)
      (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.