Saturday, November28, 2020
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Marine Weather and Tides
Amesbury Town, MA

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 6:50AMSunset 4:13PM Saturday November 28, 2020 11:23 PM EST (04:23 UTC) Moonrise 4:27PMMoonset 5:57AM Illumination 99% Phase: Waxing Gibbous; Moon at 14 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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ANZ251 Massachusetts Bay And Ipswich Bay- 1016 Pm Est Sat Nov 28 2020
.gale watch in effect from Monday afternoon through Tuesday morning...
Overnight..NW winds 10 to 15 kt, becoming W 5 to 10 kt. Gusts up to 20 kt. Seas 2 to 3 ft.
Sun..SW winds 5 to 10 kt. Gusts up to 20 kt in the morning. Seas 2 to 3 ft.
Sun night..S winds 5 to 10 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft.
Mon..S winds 10 to 15 kt with gusts up to 20 kt, becoming se 15 to 20 kt with gusts up to 35 kt in the afternoon. Seas 3 to 5 ft. Showers. Vsby 1 to 3 nm.
Mon night..S winds 20 to 25 kt with gusts up to 45 kt. Seas 5 to 8 ft. Showers. Vsby 1 to 3 nm.
Tue..S winds around 15 kt with gusts up to 30 kt. Seas 4 to 7 ft. Showers. Vsby 1 to 3 nm.
Tue night..SW winds around 15 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of showers.
Wed..SW winds around 15 kt with gusts up to 25 kt. Seas 3 to 5 ft.
Wed night through Thu night..W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 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 1016 Pm Est Sat Nov 28 2020
Synopsis for massachusetts and rhode island coastal waters.. High pres will build south of the waters through the weekend. Strong low pressure moves across western new england Mon into Tue. This system will bring the potential for gale to even potentially storm force wind gusts and high seas. Mariners will want to stay tuned to the forecast. Another high pres system building to the south of the waters will result in quieter weather Wed into Thu. For additional information on possible hazardous weather for the week ahead, please visit www.weather.gov/boston/ehwo.


7 Day Forecast for Marine Location Near Amesbury Town, MA
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location: 42.83, -70.99     debug


Area Discussion for - Boston, MA
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FXUS61 KBOX 290229 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 929 PM EST Sat Nov 28 2020

SYNOPSIS. Clouds continue to clear overnight. Plenty of sunshine is expected for Sunday. Strong low pressure lifts through the Mid Atlantic on Monday. This will bring the potential for strong to possibly damaging winds and heavy rain Monday and Monday night. Above normal temperatures early in the week trend seasonably cold midweek, then normal late week.

NEAR TERM /UNTIL 6 AM SUNDAY MORNING/.

930 PM Update .

Large high pressure building south of the region will continue to result in mainly clear skies/light winds tonight. This will allow for decent radiational cooling conditions and chillier temperatures than the last two nights. Lows should bottom out in the upper 20s to the middle 30s by daybreak, although a bit milder along the southeast New England coast where winds will not decouple.

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

Sunday . High pressure builds in allowing for a mostly sunny end to Thanksgiving weekend - perfect weather for any late fall yard clean up. Seasonable temperatures are expected in the low and middle 50s across most of southern New England. The one exception will be those living along the higher terrain of western Massachusetts - there temperatures might not make it out of the middle and upper 40s. High pressure allows for light west winds generally less than 7 knots.

Sunday night . High pressure will move east of Nova Scotia. Expecting increasing cloud cover ahead of our next weather player. Increased cloud cover will keep temperatures a tad warmer than Saturday night. Low temperatures will generally be in the 30s, but there will be some mid to upper 40 degree readings along the coastal plain. While the night will be mostly dry a robust system will be moving up from the Mid-Atlantic for Monday. A few showers could start as early as 4am to 6am.

LONG TERM /MONDAY THROUGH SATURDAY/.

Big Picture .

Merging of northern/southern shortwaves creates a closed low over the Midwest Monday, turning the upper flow along the East Coast from the south and drawing up plenty of moisture from the Gulf of Mex. Closed low lingers to our west through Tuesday, then migrates north into Canada, where it continues to affect our weather through Friday. Shortwave over the Pac Northwest coast evolves into another Midwest closed low by Friday-Saturday.

Contour heights at 500 mb look near normal for Dec 1 most of the long term period. Heights are lower/colder than normal for Wednesday as the upper low moves past.

Mass fields are similar in handling the first Midwest closed low, but continue to show differences in the end of week closed low. Forecast confidence is moderate-high through Thursday, then low confidence Friday-Saturday.

Details .

Monday .

Developing Midwest closed low aloft and southerly flow along the east coast will draw surface low pressure up the Appalachians into Central NY. The low brings a slug of moisture north with it. Precipitable water values reach 1 to 1.25 inches per the GFS and 1.25 to 1.5 inches per the NAM. Either is above normal, with the NAM values being near maximum values for the date. Strong low level jet is also noted, with both GFS and ECMWF forecasting 60-70 kt at 925 mb late Monday and Monday night.

Expect Monday to feature increasing clouds with rain showers developing toward midday and local downpours late in the day and at night, including right around the time of evening rush hour. South to southeast surface winds increase through the day, and expect wind gusts 35 to 45 kt in the late afternoon and at night. This may eventually require a Wind Advisory, but too soon for that at this time. Best chance of the wind and rain will be in RI and Ern Mass, including the Central Hills. Finally, convective parameters show a brief increase Monday evening/night with Total-totals in the upper 40s to around 50 and Lifted Index near zero. This suggests a chance of thunder during the evening/early night. Expect showers to diminish around midnight. The low level jet pulls out to the northeast at that time, so winds should then diminish overnight.

A second shortwave rotates around the upper low and across New England Tuesday. Expect a second period of showers during the day, although with a little less wind from the south-southwest.

Overall rain totals for this storm are expected in the 1.5 to 2.5 inch range.

With shallow mixing, we used the 950-mb temps of 10-14C to generate max temps each day. Highs will be in the upper 50s and lower 60s, with Monday night mins in the 50s.

Tuesday night through Thursday .

The passage of the second shortwave will swing a cold front through the region late Tuesday/Tuesday night, with colder air pouring in during Tuesday night. Showers will end, and temperatures will drop into the 30s overnight.

Cyclonic flow around the upper low will linger Wednesday and Thursday. The upper cold pool and associated moisture will generate a period of clouds Wednesday but no showers. The upper low and cold pool move off to the northeast Thursday, so diminishing clouds, while temperatures struggle to reach near normal. Mixing to 900-mb generating max sfc temps in the 40s to around 50 each day, possibly a couple of degrees milder Thursday.

Friday-Saturday .

Surface high pressure maintains dry weather Friday. The second Midwest closed low takes control at that time and feeds another area of lift and burst of moisture up the east coast. Expect increasing clouds Saturday morning with rain late Saturday or Saturday night.

AVIATION /03Z SUNDAY THROUGH THURSDAY/.

Forecaster Confidence Levels .

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

Tonight . High Confidence.

VFR with skies clearing as high pressure builds in and light NW winds.

Sunday . High Confidence.

VFR with W winds shifting to the WSW/SW speeds of 5-10kts.

KBOS . High confidence in TAF.

KBDL . High confidence in TAF.

Outlook /Monday through Thursday/ .

Monday: Mainly MVFR, with local IFR possible. Strong winds with gusts up to 40 kt. SHRA. Potential LLWS.

Monday Night: Mainly MVFR, with areas IFR possible. Strong winds with gusts up to 45 kt. SHRA, slight chance TSRA. Potential LLWS.

Tuesday: Mainly MVFR, with local IFR possible. Windy with gusts up to 35 kt. Chance SHRA.

Tuesday Night: Mainly VFR, with areas MVFR possible. Windy with local gusts up to 30 kt. Slight chance SHRA.

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

Wednesday Night through Thursday: VFR. Breezy.

MARINE.

Tonight . High Confidence. A weak cold front will result in NW wind gusts increasing into the lower 20 knots tonight. We opted to keep conditions just below SCA thresholds with seas in the open waters mainly between 3 and 4 feet and gusts below 23kts.

Sunday . High Confidence. High pressure centered to our south will keep winds/seas below small craft advisory thresholds.

Outlook /Monday through Thursday/ .

Monday: Moderate risk for gale force winds with gusts up to 45 kt. Local rough seas. Chance of rain showers. Local visibility 1 to 3 nm. Gale Watch has been issued.

Monday Night: Moderate risk for gale force winds with local gusts up to 45 kt. Rough seas up to 16 ft. Rain showers, slight chance of thunderstorms. Visibility 1 to 3 nm.

Tuesday: Low risk for gale force winds with gusts up to 40 kt. Rough seas up to 16 ft. Rain showers.

Tuesday Night: Moderate risk for Small Craft Advisory winds with gusts up to 30 kt. Rough seas up to 17 ft. Chance of rain showers.

Wednesday: Moderate risk for Small Craft Advisory winds with gusts up to 30 kt. Rough seas up to 14 ft.

Wednesday Night: Moderate risk for Small Craft Advisory winds with gusts up to 25 kt. Rough seas up to 10 ft.

Thursday: Moderate risk for Small Craft Advisory winds with gusts up to 25 kt. Areas of rough seas.

TIDES/COASTAL FLOODING.

Increasing southeast wind Monday with gusts around 40 kt possible. Winds turn more from the south or southwest Monday night and Tuesday. This will drive the seas up against southern-facing coasts and may generate splashover in those areas. Working against this is the relatively low astronomical tide levels . the max tides were in mid November and next in mid December.

Nonetheless, guidance suggests some South Coast locations just below flood stage Monday afternoon and Tuesday. This will need to be monitored.

BOX WATCHES/WARNINGS/ADVISORIES. CT . None. MA . None. RI . None. MARINE . Gale Watch from Monday afternoon through Tuesday afternoon for ANZ231-232-250-254-255. Gale Watch from Monday afternoon through Tuesday morning for ANZ230-233>237-251-256.

SYNOPSIS . WTB/Gaucher NEAR TERM . Frank SHORT TERM . Gaucher LONG TERM . WTB AVIATION . WTB/Gaucher MARINE . WTB/Gaucher TIDES/COASTAL FLOODING . Staff


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BGXN3 - Great Bay Reserve, NH 18 mi98 min W 5.1 38°F 1015 hPa35°F
IOSN3 - Isle of Shoals, NH 22 mi83 min W 16 G 18 42°F 1014.3 hPa37°F
44029 - Buoy A0102 - Mass. Bay/Stellwagen 31 mi79 min WNW 14 G 18 46°F 49°F2 ft1014.4 hPa
BHBM3 - 8443970 - Boston, MA 33 mi53 min 44°F 1015.4 hPa
44013 - BOSTON 16 NM East of Boston, MA 38 mi33 min W 16 G 18 46°F 50°F2 ft1016.4 hPa35°F
44030 - Buoy B0102 - Western Maine Shelf 38 mi79 min W 14 G 16 43°F
WELM1 - 8419317 - Wells, ME 41 mi53 min NW 5.1 G 11 40°F 1014.8 hPa
WEXM1 - Wells Reserve, ME 42 mi83 min W 2.9 40°F 36°F
44098 - Jeffrey's Ledge, NH (160) 44 mi27 min 50°F4 ft

Wind History for Wells, ME
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lawrence Municipal Airport, MA10 mi29 minSSW 410.00 miFair37°F30°F76%1016.5 hPa
Beverly, Beverly Municipal Airport, MA18 mi30 minW 410.00 miFair38°F30°F73%1015.4 hPa
Pease Air Force Base / Portsmouth, NH20 mi87 minW 610.00 miA Few Clouds38°F32°F80%1014.9 hPa

Link to 5 minute data for KLWM

Wind History from LWM (wind in knots)
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Last 24hrNW3CalmCalmCalmS3S3SW3CalmSW3SW3SW4SW5W6W10W6W9
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1 day agoCalmSW3CalmSW4W3SW3S3S3S3SW4SW4SW5CalmSW4CalmSW5CalmS3CalmCalmCalmCalmCalmCalm
2 days agoCalmNE4N3CalmNE4NE5NE3E4CalmCalmW6CalmCalmCalmN3NW3NW6--NE3NW7CalmCalmCalmW3

Tide / Current Tables for Newburyport, Merrimack River, Massachusetts
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Newburyport
Click for Map
Sat -- 04:39 AM EST     0.68 feet Low Tide
Sat -- 04:56 AM EST     Moonset
Sat -- 06:51 AM EST     Sunrise
Sat -- 10:12 AM EST     7.92 feet High Tide
Sat -- 03:26 PM EST     Moonrise
Sat -- 04:11 PM EST     Sunset
Sat -- 05:06 PM EST     -0.02 feet Low Tide
Sat -- 10:41 PM EST     7.26 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.24.93.41.90.90.81.83.75.87.37.97.76.85.53.82.10.6-00.52.14.26.17.17.2

Tide / Current Tables for Newburyport (Merrimack River), Massachusetts Current
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Newburyport (Merrimack River)
Click for Map
Sat -- 02:39 AM EST     -1.11 knots Max Ebb
Sat -- 04:42 AM EST     0.00 knots Slack
Sat -- 04:56 AM EST     Moonset
Sat -- 06:51 AM EST     Sunrise
Sat -- 08:19 AM EST     1.66 knots Max Flood
Sat -- 10:48 AM EST     -0.00 knots Slack
Sat -- 02:59 PM EST     -1.22 knots Max Ebb
Sat -- 03:26 PM EST     Moonrise
Sat -- 04:11 PM EST     Sunset
Sat -- 05:12 PM EST     0.00 knots Slack
Sat -- 08:43 PM EST     1.58 knots Max Flood
Sat -- 11:09 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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-0.8-1-1.1-1.1-0.60.20.81.21.61.50.7-0.1-0.8-1.1-1.1-1.2-1-0.20.50.91.41.510.1

Weather Map
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wmap_A
GEOS Local Image of    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
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 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.