Thursday, October1, 2020
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L-36.com

Marine Weather and Tides
Newburyport, 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 6:40AMSunset 6:25PM Thursday October 1, 2020 11:58 AM EDT (15:58 UTC) Moonrise 6:45PMMoonset 6:10AM Illumination 100% Phase: Full Moon; 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 Am Edt Thu Oct 1 2020
This afternoon..S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft.
Tonight..S winds 5 to 10 kt with gusts up to 20 kt, becoming W after midnight. Seas 2 to 4 ft.
Fri..NE winds 5 to 10 kt. Seas around 2 ft. A chance of showers.
Fri night..NW winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft.
Sat..N winds 5 to 10 kt. Seas around 2 ft.
Sat night..S winds around 5 kt, becoming W after midnight. Seas 2 to 3 ft.
Sun..NE winds 5 to 10 kt. Seas 2 to 3 ft.
Sun night and Mon..SE winds 5 to 10 kt, becoming e. Seas 2 to 4 ft. A chance of rain.
Mon night..NE winds around 10 kt. Seas 3 to 5 ft. A chance of rain. 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 Am Edt Thu Oct 1 2020
Synopsis for massachusetts and rhode island coastal waters.. Dry weather and modest sw winds affect the coastal waters of massachusetts and rhode island today. Weak low pres tracks across the coastal waters Fri from sw to ne. Weak high pres then builds into new england this weekend. A coastal low will impact the waters Mon, however the exact track and intensity of this low is still uncertain at this time. 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 Newburyport, MA
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location: 42.81, -70.87     debug


Area Discussion for - Boston, MA
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FXUS61 KBOX 011410 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 1010 AM EDT Thu Oct 1 2020

SYNOPSIS. Dry weather today along with warmer than normal temperatures. Scattered showers are likely Friday, with showers most numerous northwest of Boston and Providence. Dry weather returns for this weekend. along with near normal temperatures. Coastal low pressure may bring widespread appreciable rainfall Sunday night and Monday. Dry weather likely returns Tuesday behind departing low. However, an active weather pattern may yield a chance of showers midweek.

NEAR TERM /UNTIL 6 PM THIS EVENING/. 1010 AM Update .

No major changes to the ongoing forecast this morning. Brought temperatures and winds back in line with observed trends. Still expecting abundant sunshine, with a few mid level clouds at times, particularly across NW MA. Gusty winds up to 25 mph develop towards the Cape and islands this afternoon, with lower gusts farther inland.

Previous discussion .

A positively tilted H5 trough runs from the Great Lakes into Missouri. This means that S New England remains in a predominant SW flow despite being in a post cold frontal air mass with the bulk of the cold air staying well west of us. In fact, near-term guidance indicates the milder and muggier air try to come back north so the Cape and South Coast could see dew points rise into the upper 50s to near 60. Further inland across interior MA, mixing up to 850mb should see afternoon dew points fall into the 40s. With 850mb temps around +7 to +9C, expect highs to be mainly in the low to mid 70s, which is about 5 degrees above climatological normal. Downslope flow could potentially lead to highs overperforming in Eastern MA and RI so used the MOS guidance to derive afternoon highs. Expect a steady SW winds with gusts up to 20 mph at times. Nonetheless, with plenty of sunshine and dew points in the 40s and 50s, it will be a very comfortable day for outdoor activities.

SHORT TERM /6 PM THIS EVENING THROUGH 6 PM FRIDAY/. 420 AM Update .

Overnight Thursday into Friday .

The aforementioned H5 trough axis slowly approaches the Mid Atlantic states as it takes on a more neutral tilt. While the embedded vort max moves over Upstate NY into interior New England, a piece of energy associated with the trough will be sufficient to trigger a few autumn showers especially across interior MA beginning during the pre-dawn hours on Friday for the Western MA and reaching Eastern MA and RI by early to mid morning. The showers will bring about a reinforcing shot of cold air, with 850mb temperatures of +3C and 925 mb temperatures of +7C in the middle of the day! Locations in Western MA could remain in the mid 50s for much of Friday, while Eastern MA and RI could rise into the upper 60s or even low 70s before turning sharply cooler depending on the amount of sunshine and speed of the cold front.

There are some indications of an area of low pressure moving up the Atlantic seaboard that may help reinforce some of the showers for Eastern MA and RI but the main impact looks to be breezy conditions with gusts of 15 to 20 mph possible for locations near and along the coast. With winds turning to the south before the cold front passage, that could help boost highs along the MA/RI south coast to near 70.

Overall, rainfall amounts should be light with totals generally a quarter of an inch or less with the highest totals anticipated over western and central portions of the CWA.

LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/. 420 AM Update .

Highlights

* Seasonably cool weather this period

* Dry weather this weekend followed by rain likely Sun ngt/Mon with dry weather likely returning Tue, followed by a chance of showers mid week

Precipitation .

Dry weather returns Fri night behind departing short wave and associated weak coastal low. Weak short wave moves across the area Sat but column is too dry to yield any showers. Thus expecting dry weather Sat with just some extra diurnal clouds from the short wave. Short wave ridging develops over the area Sunday in response to upstream trough amplification across the Great Lakes. Therefore dry weather continues into Sunday but upstream trough sets the stage for rain chances Sun night into Monday. Euro continues to be the most amplified solution with closed low continuing to deepen as it tracks near or along the southern New England coast. Although the new 00z EC has backed off its previous deep solution. EC ensemble members are not as amplified as the 12z and previous operational runs including the 00z GFS/GEFS which are less amplified. However all model guidance including the UKMET/CMC and GFS are beginning to trend toward higher amplitude. This seems reasonable given the overall amplified long wave pattern with large western CONUS ridge and western Atlc ridge, supporting a high amplitude trough over the Great Lakes. However given the large model spread will continue to derive pops from a model blend. Dry weather should follow Tue behind departing system, however upper air pattern remains progressive but also somewhat amplified. Thus another chance of showers sometime midweek.

Temperatures .

Seasonable airmass overspreads the region this weekend, with highs in the mid to upper 60s, low 60s high terrain, with morning lows in the 40s and even a few mid to upper 30s Sunday morning. Temps Monday still a bit uncertain given different model solutions ranging from a soaking wind swept rain from a closed coastal low, to a more progressive/open wave-coastal low. Given uncertainty we will derive temps from a model blend here. Then seasonable temps Tue behind departing coastal low. WAA ahead of next short wave Wed should yield temps at or above normal.

AVIATION /14Z THURSDAY THROUGH MONDAY/. Forecaster Confidence Levels .

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

VFR conditions. SW winds at 5 to 10 kt with gusts up to 15 kt. Gusts up to 20 kt possible towards the Cape and islands.

Tonight: High confidence.

VFR with winds generally below 5 kt. There is a low risk for a late night rain shower west of the CT River.

Friday: High confidence.

Mainly VFR with periods of MVFR possible during showers. NW winds of 5 to 10 kt for western MA terminals and S winds of 10 kt with gusts 15 to 20 kt possible for southeast MA and Cape terminals.

KBOS Terminal . High confidence in TAF.

KBDL Terminal . High confidence in TAF. Outlook /Friday Night through Monday/ .

Friday Night: VFR. Breezy.

Saturday through Sunday: VFR.

Sunday Night: Mainly VFR, with areas MVFR possible. Chance RA.

Monday: Mainly MVFR, with areas VFR possible. Breezy. Chance RA.

MARINE. * Small Craft Advisories for outer waters today for rough seas.

Small Craft Advisories continue today for the outer waters thanks to remaining rough seas of up to 7 ft. Winds should remain below Small Craft criteria with a rather tranquil stretch of weather. There is a risk of showers on Friday with a cold front passage.

Outlook /Friday Night through Monday/ .

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

Saturday through Sunday: Winds less than 25 kt.

Sunday Night: Winds less than 25 kt. Seas locally approaching 5 ft. Chance of rain.

Monday: Winds less than 25 kt. Seas up to 5 ft. Chance of rain.

BOX WATCHES/WARNINGS/ADVISORIES. CT . None. MA . None. RI . None. MARINE . Small Craft Advisory until 10 PM EDT this evening for ANZ237- 250-254. Small Craft Advisory until midnight EDT tonight for ANZ235-255. Small Craft Advisory until 2 AM EDT Friday for ANZ256.

SYNOPSIS . Belk/Nocera/Chai NEAR TERM . Nocera/Chai SHORT TERM . Chai LONG TERM . Nocera AVIATION . Belk/Nocera/Chai MARINE . Belk/Nocera/Chai


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BGXN3 - Great Bay Reserve, NH 17 mi73 min SW 4.1 70°F 1011 hPa56°F
IOSN3 - Isle of Shoals, NH 17 mi58 min SSW 7 G 8 62°F 1010.6 hPa (+0.0)56°F
44073 23 mi114 min SW 7.8 G 9.7 62°F 60°F
44029 - Buoy A0102 - Mass. Bay/Stellwagen 26 mi114 min WSW 3.9 G 5.8 62°F 3 ft1009.3 hPa
BHBM3 - 8443970 - Boston, MA 33 mi58 min 72°F 62°F1010.3 hPa (+0.0)
44013 - BOSTON 16 NM East of Boston, MA 34 mi68 min S 9.7 G 9.7 64°F 62°F2 ft1010.3 hPa (+0.0)59°F
44030 - Buoy B0102 - Western Maine Shelf 35 mi114 min SSW 12 G 14 59°F 58°F5 ft
44098 - Jeffrey's Ledge, NH (160) 37 mi53 min 61°F4 ft
WELM1 - 8419317 - Wells, ME 39 mi58 min 61°F 57°F1011.1 hPa (+0.0)

Wind History for Wells, ME
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lawrence Municipal Airport, MA14 mi64 minSW 710.00 miFair68°F55°F63%1011.6 hPa
Beverly, Beverly Municipal Airport, MA16 mi65 minSW 1010.00 miFair70°F53°F55%1010.3 hPa
Pease Air Force Base / Portsmouth, NH20 mi62 minWSW 910.00 miA Few Clouds69°F50°F52%1010.7 hPa

Link to 5 minute data for KLWM

Wind History from LWM (wind in knots)
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SW10S4--SW9SW4S5S6S5SW6S4SW4S4S4S4S5SW5SW9SW7
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Tide / Current Tables for Newburyport, Merrimack River, Massachusetts (2)
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Newburyport
Click for Map
Thu -- 06:10 AM EDT     Moonset
Thu -- 06:41 AM EDT     Sunrise
Thu -- 06:46 AM EDT     0.22 feet Low Tide
Thu -- 12:17 PM EDT     8.13 feet High Tide
Thu -- 05:06 PM EDT     Full Moon
Thu -- 06:23 PM EDT     Sunset
Thu -- 06:45 PM EDT     Moonrise
Thu -- 07:01 PM EDT     0.33 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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8.47.96.64.831.40.50.31.23.25.47.28.17.975.33.51.90.70.30.92.757

Tide / Current Tables for Newburyport (Merrimack River), Massachusetts Current
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Newburyport (Merrimack River)
Click for Map
Thu -- 12:23 AM EDT     -0.00 knots Slack
Thu -- 04:30 AM EDT     -1.28 knots Max Ebb
Thu -- 06:10 AM EDT     Moonset
Thu -- 06:41 AM EDT     Sunrise
Thu -- 06:42 AM EDT     0.00 knots Slack
Thu -- 10:14 AM EDT     1.77 knots Max Flood
Thu -- 12:49 PM EDT     -0.00 knots Slack
Thu -- 04:53 PM EDT     -1.24 knots Max Ebb
Thu -- 05:06 PM EDT     Full Moon
Thu -- 06:23 PM EDT     Sunset
Thu -- 06:45 PM EDT     Moonrise
Thu -- 07:05 PM EDT     0.00 knots Slack
Thu -- 10:36 PM EDT     1.65 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.3-0.4-0.9-1.1-1.2-1.2-0.60.20.81.31.71.50.7-0.1-0.7-1.1-1.2-1.2-0.9-0.10.611.51.6

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Ground Weather Radar Station Boston, MA
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