Tuesday, July27, 2021
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Marine Weather and Tides
Saugus, MA

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
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 5:30AMSunset 8:10PM Tuesday July 27, 2021 12:59 AM EDT (04:59 UTC) Moonrise 10:36PMMoonset 9:15AM Illumination 92% Phase: Waning Gibbous; Moon at 18 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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ANZ230 Boston Harbor- 1027 Pm Edt Mon Jul 26 2021
Overnight..W winds around 5 kt. Waves 1 foot or less. Patchy smoke.
Tue..W winds around 5 kt, becoming S in the afternoon. Waves 1 foot or less.
Tue night..NE winds 5 to 10 kt, becoming N after midnight. Waves 1 foot or less. A chance of showers and tstms.
Wed..NE winds 5 to 10 kt. Waves 1 foot or less.
Wed night..SE winds around 5 kt, becoming sw after midnight. Waves 1 foot or less.
Thu..SW winds around 5 kt, becoming S in the afternoon. Waves 1 foot or less. A chance of showers.
Thu night..SW winds 5 to 10 kt. Waves around 2 ft. Showers likely.
Fri..W winds 5 to 10 kt. Waves around 2 ft. A chance of showers.
Fri night through Sat night..SW winds 5 to 10 kt. Waves around 2 ft. Winds and waves higher in and near tstms. 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 1027 Pm Edt Mon Jul 26 2021
Synopsis for massachusetts and rhode island coastal waters.. Weak stationary front lingers south of the islands with periodic showers. Cold front moves from northwest to southeast Tuesday afternoon/evening with showers and Thunderstorms. High pressure briefly moves in on Wednesday followed by low pressure and showers Thursday into Friday. 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 Saugus, MA
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location: 42.44, -71.02     debug


Area Discussion for - Boston, MA
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FXUS61 KBOX 270212 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 1012 PM EDT Mon Jul 26 2021

SYNOPSIS. Summer heat returns Tuesday before a cold front slides across the area Tuesday evening. Unsettled pattern returns with the risk for showers and a few thunderstorms each afternoon and evening Tuesday into Friday. Dry and pleasant weather is expected to start this weekend.

NEAR TERM /UNTIL 6 AM TUESDAY MORNING/.

1010 PM Update .

Previous forecast remains on track. A cluster of scattered showers & thunderstorms across south central NH should track east and stay to our north over the next few hours given the mid level flow. Therefore, maintained a dry/tranquil forecast overnight with no real forcing in our region for precipitation. Low temperatures should mainly be in the 60s.

The main issue overnight will contine to be the smoke in the air and reduced visbility from Wildfires burning in the western U.S. and western Canada. The HRRR indicates some improvement overnight from west to east as the core of the smoke plume pushes east of the region.

SHORT TERM /6 AM TUESDAY MORNING THROUGH TUESDAY NIGHT/. Tuesday .

High pressure begins to weaken, but clear skies will once again be muddied by elevated smoke on Tuesday morning as another wave of wildfire smoke is transported over southern New England. 925mb temps remain quite high during the morning hours, once again approaching 23-24C. Given good mixing, surface temperatures will approach 90 degrees, warmest across Connecticut.

Things become more interesting after 4 pm as a cold front begins to slide through our area. The greatest threat for significant thunderstorms is north and west of the MA turnpike, where some guidance shows surface CAPE exceeding 2000 J/kg. Additionally, K indicies approach 40 during the same time frame. One limiting factor tomorrow is that the greatest shear remains north of our area, across NH. The greatest 0-6 km shear approaches 40-45 kts, with bulk shear values around 45 kts along the MA/NH border. Northern MA will find itself in the crosshairs of favorable shear and high CAPE, suggesting that the strongest storms will be centered there. Low level lapse rates approach 8-9 C/km.

CAPE diminishes quickly after sunset, but thunderstorms likely persist all the way the south coast through midnight. K indicies will linger in the upper 30s while mid level lapse rates approach a healthy 6.7-7 C/km. Bulk shear values of 45-50 kts will also breathe life into some post-sunset storms.

Tuesday Night .

Thunder lingers through the first half of the evening. Behind the passing cold front, winds will shift from the SW/W to the North as cooler air rushes in. Lows will once again fall into the low and mid 60s. Fog is less likely overnight Tuesday as dewpoint depressions remain between 5-7 degrees.

LONG TERM /WEDNESDAY THROUGH MONDAY/. Highlights .

* Periodic rain and thunderstorm chances through the period, first on Thursday/Friday morning then again the latter half of this weekend

* Temperatures trend below normal Wednesday through this weekend

Still a tale of where will the front be, and when will it be there. expecting a cold front to stall to our south. Lingering risk for some showers early in the day until this front moves by our region. Thereafter looking at drier conditions most of Wednesday. This front should return north as a warm front Thursday, setting the stage for another round of showers and thunderstorms Thursday into Thursday night. Another cold front should move offshore sometime Friday morning, leading to drier weather Saturday. Yet another warm front and cold front pass by Sunday into Monday, leading to the chance for more showers and thunderstorms. None of these days will be a complete washout, but there will be prolonged periods for a chance of precipitation.

Still looking like below normal temperatures Wednesday into early next week.

AVIATION /02Z TUESDAY THROUGH SATURDAY/. Forecaster Confidence Levels.

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

Mainly VFR conditions persist through Tuesday afternoon before local MVFR conditions develop in showers and downpours. Smoke and haze will reduce visibility at times. Patchy fog will be less widespread overnight, primarily impacting Nantucket and Martha's Vineyard.

KBOS TAF . High confidence in TAF. Mainly VFR. Smoke and haze will reduce visibility at times this evening. Showers develop late in the day on Tuesday; chance of VCTS.

KBDL TAF . High confidence in TAF. Mainly VFR. Smoke and haze will reduce visibility at times this evening. Showers develop in the early evening hours on Tuesday; chance of VCTS.

Outlook /Wednesday through Saturday/ .

Wednesday: Mainly VFR, with local MVFR possible. Slight chance SHRA.

Wednesday Night: VFR.

Thursday: Mainly VFR, with local IFR possible. SHRA likely, slight chance TSRA.

Thursday Night: Mainly VFR, with local IFR possible. Breezy. Chance SHRA, slight chance TSRA.

Friday: VFR. Breezy. Slight chance SHRA.

Friday Night through Saturday: VFR. Breezy.

MARINE. Forecaster Confidence Levels.

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

Seas have subsided enough to allow any Small Craft Advisories to expire. Winds will remain below 15 kts with seas below 5 ft through Tuesday. A cold front will pass over the waters on Tuesday evening, bringing a chance for scattered showers and thunderstorms.

/Outlook /Wednesday through Saturday/ .

Wednesday: Winds less than 25 kt. Slight chance of rain showers.

Wednesday Night: Winds less than 25 kt.

Thursday: Winds less than 25 kt. Seas locally approaching 5 ft. Chance of rain showers.

Thursday Night: Winds less than 25 kt. Seas up to 5 ft. Rain showers likely, isolated thunderstorms.

Friday: Winds less than 25 kt. Seas up to 5 ft. Slight chance of rain showers.

Friday Night: Winds less than 25 kt. Seas up to 5 ft.

Saturday: Winds less than 25 kt. Areas of seas approaching 5 ft.

HYDROLOGY. No active river flood warnings are in effect for rivers and waterways across southern New England.

However, after having a tremendous amount of rainfall from early to mid July, many rivers and streams are running much higher than normal. This is resulting in swift currents that would not typically be seen in the summer. These swift currents can catch those swimming or tubing/kayaking on area waterways off guard. There have been 3 total reports of drownings in the last week on the Farmington River in CT and Squannacook River in MA given the higher than usual flows and swift currents.

Those with interests swimming, tubing or kayaking on area rivers and waterways should be aware that swift currents due to high flows are occurring. This can result in dangerous conditions, and it is generally discouraged to swim, inner-tube, or kayak until flows decrease.

BOX WATCHES/WARNINGS/ADVISORIES. CT . Air Quality Alert until 11 PM EDT this evening for CTZ002>004. MA . Air Quality Alert until midnight EDT tonight for MAZ002>016- 026. RI . Air Quality Alert until noon EDT Tuesday for RIZ001>008. MARINE . None.

SYNOPSIS . Belk/KS NEAR TERM . Frank SHORT TERM . KS LONG TERM . Belk AVIATION . Belk/KS MARINE . Belk/KS HYDROLOGY . Staff


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
BHBM3 - 8443970 - Boston, MA 6 mi90 min 79°F 1011.4 hPa
44013 - BOSTON 16 NM East of Boston, MA 21 mi50 min WSW 5.8 G 5.8 71°F1011.7 hPa
44029 - Buoy A0102 - Mass. Bay/Stellwagen 25 mi116 min SW 3.9 G 5.8 72°F 71°F2 ft1011.2 hPa
IOSN3 - Isle of Shoals, NH 42 mi60 min SW 12 G 12 75°F 1010.5 hPa (+0.3)64°F
BGXN3 - Great Bay Reserve, NH 44 mi75 min Calm 65°F 1011 hPa65°F
CMLN3 47 mi176 min WNW 1 69°F
FOXR1 - 8454000 - Providence, RI 48 mi90 min NW 5.1 G 7 77°F 68°F1012.6 hPa
PVDR1 49 mi90 min W 2.9 G 4.1 77°F 1012.7 hPa63°F

Wind History for Providence, RI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Boston, Logan International Airport, MA4 mi66 minW 65.00 miA Few Clouds with Haze80°F62°F54%1011.7 hPa
Beverly, Beverly Municipal Airport, MA11 mi67 minN 03.00 miFair with Haze72°F67°F84%1011 hPa
Laurence G Hanscom Field Airport, MA14 mi69 minWSW 54.00 miFog/Mist70°F67°F90%1012.6 hPa
Norwood, Norwood Memorial Airport, MA19 mi67 minN 03.00 miFog/Mist68°F65°F90%1012 hPa
Lawrence Municipal Airport, MA21 mi66 minSSW 44.00 miFair with Haze73°F65°F76%1012 hPa

Link to 5 minute data for KBOS

Wind History from BOS (wind in knots)
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Tide / Current Tables for Lynn Harbor, Massachusetts
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Lynn Harbor
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Tue -- 02:12 AM EDT     10.66 feet High Tide
Tue -- 05:31 AM EDT     Sunrise
Tue -- 08:28 AM EDT     -0.62 feet Low Tide
Tue -- 09:14 AM EDT     Moonset
Tue -- 02:49 PM EDT     9.58 feet High Tide
Tue -- 08:08 PM EDT     Sunset
Tue -- 08:43 PM EDT     0.33 feet Low Tide
Tue -- 10:36 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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7.69.710.610.28.76.53.81.2-0.4-0.40.82.85.27.69.29.68.87.14.92.50.80.41.43.2

Tide / Current Tables for Boston Harbor, Massachusetts Current
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Boston Harbor
Click for Map
Tue -- 01:40 AM EDT     -0.00 knots Slack
Tue -- 05:31 AM EDT     Sunrise
Tue -- 05:56 AM EDT     -1.34 knots Max Ebb
Tue -- 08:16 AM EDT     0.00 knots Slack
Tue -- 09:14 AM EDT     Moonset
Tue -- 11:32 AM EDT     1.27 knots Max Flood
Tue -- 02:17 PM EDT     -0.00 knots Slack
Tue -- 06:28 PM EDT     -1.24 knots Max Ebb
Tue -- 08:08 PM EDT     Sunset
Tue -- 08:41 PM EDT     0.00 knots Slack
Tue -- 10:35 PM EDT     Moonrise
Tue -- 11:55 PM EDT     1.17 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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10.5-0.2-0.7-1.1-1.3-1.3-1.1-0.30.61.11.21.20.80.2-0.4-0.8-1.1-1.2-1.2-0.60.30.91.1

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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.
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