Thursday, October21, 2021
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Marine Weather and Tides
Kingston, 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 7:01AMSunset 5:53PM Thursday October 21, 2021 4:24 PM EDT (20:24 UTC) Moonrise 6:34PMMoonset 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
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ANZ231 Cape Cod Bay- 302 Pm Edt Thu Oct 21 2021
This afternoon..SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft.
Tonight..S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft.
Fri..SW winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft.
Fri night..SW winds 10 to 15 kt with gusts up to 20 kt, becoming nw 5 to 10 kt after midnight. Seas around 2 ft.
Sat and Sat night..NW winds 10 to 15 kt. Seas around 2 ft. A chance of showers.
Sun through Mon night..NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 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 302 Pm Edt Thu Oct 21 2021
Synopsis for massachusetts and rhode island coastal waters.. Low pressure moves up through the great lakes this afternoon into Friday. A weak cold front moves through the waters Friday afternoon or Friday night. A low passes southeast of the southern waters on Saturday before high pressure returns late in the weekend. Another low passes near the southern waters toward mid week. 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 Kingston, MA
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location: 42, -70.73     debug


Area Discussion for - Boston, MA
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FXUS61 KBOX 211918 AFDBOX

Area Forecast Discussion National Weather Service Boston/Norton MA 318 PM EDT Thu Oct 21 2021

SYNOPSIS. High pressure moves off the east coast and a low moves into the Saint Lawrence River Valley. Ahead of the trailing cold front WAA brings unseasonably warm temperatures and breezy conditions to the region. A broken line of showers moves across southern New England overnight into early Friday morning. Mostly dry but much cooler this weekend. Unsettled weather may return for much next week, but confidence in this portion of the forecast period is low. It will be cooler than normal much of the week.

NEAR TERM /UNTIL 6 PM THIS EVENING/. 145 PM UPDATE .

Forecast remains largely on track. Warm front lifted across our region overnight, giving that slightly humid feel (by late October standards). A look at the observed 12z OKX sounding shows +13C at 850mb. SPC mesoanalysis shows 25-30 kt winds at that level. Daytime heating has begun to overcome the inversion caused by the warm layer between 900-950mb, so ASOS sites are showing 15-20 kt gusts across the area. Much of the region will top out in the mid 70s this afternoon, with even a handful of upper 70 readings possible. Exceptions are portions of the high terrain and coastal areas, which top out in the upper 60s to low 70s. Highs are 10 to 15 degrees above average today. Get out and enjoy if you can!

PREVIOUS DISCUSSION .

If you didn't have a chance to bask in the mid-October warmth on Wednesday you will have another chance today! Normal heights for the time of year are generally upper-50s and low-60s. yesterday, we have another warm day on tap for today! We aren't heading into record breaking territory, but afternoon temperatures will be well above normal. In fact, afternoon temperatures today are more representative of the latter part of September.

High pressure that's been building across the southeast section of the United States slides off shore today and a surface low moves from the Great Lakes region, northeast, into the Saint Lawrence River Valley this evening. Trailing to the south will be a cold front. Clouds increase during the second half of the day. But I still expect we have a fair amount of sunshine.

Warmer air advects into southern New England this afternoon. The 925mb temperatures this afternoon range between +14c and +16c. While we won't see deep summer mixing this afternoon, BUFKIT forecast soundings mix right up to 900mb. Mixing to this height will result in widespread temperatures in the low to middle 70s. As we overachieved temperature wise on Wednesday it's possible this could happen again this afternoon. It's not out of the question areas across the southern Pioneer Valley could see a few upper-70s.

Winds will become gusty this afternoon as well as winds aloft at 925mb are between 20 and 30 knots. With mixing to that height we should see some gust 15 to 20 knots along the I-95 corridor and up to 25 knots along the south coast, islands, and Cape.

SHORT TERM /6 PM THIS EVENING THROUGH FRIDAY NIGHT/. Tonight: Clouds increase from west to east as a cold front approaches southern New England. CAMs show a broken line of showers approaching western MA/CT around 04z and getting to the Boston area by 08z. PWATs are generally around 1.5" which is 180 percent of normal. A few downpours can't be ruled out. Added cloud cover and breezy southwest winds will help keep temperatures mild once again overnight in the mid-50s to low-60s.

Winds remain rather breezy overnight for the south coast, islands, and Cape. While many areas over land will see the boundary layer stabilize, the warmer sea surface temperatures will allow for good mixing to continue . allowing for continued gusts to 25 knots into the overnight hours.

Friday: A cooling trend starts on Friday as a cold front moves off shore. Breezy southwest winds will ease and become northwest throughout Friday afternoon. Temperatures aloft begin to cool as well, but we do squeeze another mild afternoon in as temperatures reach the upper-60s to 70 degrees.

The cold front becomes quasi-stationary and drifts slowly off shore as a surface low rides along the boundary and increasing chances for a few showers late Friday, especially for Nantucket.

LONG TERM /SATURDAY THROUGH THURSDAY/.

Big Picture .

Closed low over sits over Northern Ontario Saturday and early Sunday before racing along the Canadian border late Sunday. Shortwave races out of the Central Rockies Sunday to the Mid Atlantic coast Tuesday, but significant differences in the models with the Canadian model most different. Upper ridge then builds over the Eastern USA for midweek.

Upper contours remain within climatological average through the period. However, the low-level flow turns from the east and northeast Monday through Wednesday, which would support cooler than average temperatures.

Forecast confidence is high for the weekend, then drops to low for early next week.

Details .

Saturday-Sunday . Closed upper low will maintain a cyclonic flow over Srn New England this weekend. Shortwaves move through the flow each day, with associated jets generating weak lift. This may be enough to generate a few sprinkles/light showers, but mostly dry weather. Cross sections show moisture around 850 mb, and a mixed layer to between 850 and 900-mb. Expect mixed clouds and sun. Temps in the mixed layer support will be equiv to -1C to +1C at 850-mb, so expect max temps in the upper 50s and low 60s each day. Fair skies and light wind and dews of 35 to 45 . expect nighttime min temps in the upper 30s and 40s.

Monday through Thursday . Variable model solutions on the weather next week. There is a general agreement on high pressure over Quebec, with a low-level east flow over Srn New England. Low pressure from the Midwest is projected to move to the Mid Atlantic coast, but the GFS races it offshore and out to sea while the ECMWF and Canadian/GGEM keep it close to the coast and move it slowly out to sea through the week. High pressure may suppress the QPF to our west and south, but some guidance moves it in. Thus the low confidence. The forecast will mostly show slight chance pops of showers, except low-end chance pops on Thursday. Low-level temps in the easterly flow support 850-mb equiv temps around -2C . supporting max temps in the 50s and lower 60s, warmest Thursday.

AVIATION /19Z THURSDAY THROUGH TUESDAY/. Low - less than 30 percent. Medium - 30 to 60 percent. High - greater than 60 percent.

12Z update .

Today . High confidence. VFR. Gusty SW winds 20-25 kt develop during the afternoon towards the Cape and islands.

Tonight . Moderate confidence. VFR. ISOLD-SCT MVFR in SHRA. Gusty SW winds around 25 kt towards the south coast, Cape and islands.

Friday . High confidence. VFR. Mostly dry. Winds turn out of the west then northwest with a cold front, decreasing through the day.

KBOS Terminal . High confidence in TAF.

KBDL Terminal . High confidence in TAF.

Outlook /Saturday through Tuesday/ .

Saturday: Mainly VFR, with areas MVFR possible. Chance SHRA.

Saturday Night: Mainly VFR, with local IFR possible.

Sunday: VFR.

Sunday Night: Mainly VFR, with local MVFR possible.

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

Monday Night through Tuesday: Mainly MVFR, with areas VFR possible. Breezy. Slight chance SHRA.

MARINE. Forecaster Confidence Levels.

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

Gusty 25 knot southwest winds are expected to develop Thursday afternoon ahead of an approaching cold front. Small Craft Advisories have been issued majority of the off shore waters this afternoon. The cold front will sit east of the waters Friday night into Saturday and a surface low will ride along the boundary producing rough seas greater than 5 ft.

Outlook /Saturday through Tuesday/ .

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

Saturday Night: Winds less than 25 kt.

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

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

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

Monday Night: Winds less than 25 kt. Areas of seas approaching 5 ft. Slight chance of rain showers.

Tuesday: Winds less than 25 kt. Local rough seas. Slight chance of rain showers.

BOX WATCHES/WARNINGS/ADVISORIES. CT . None. MA . None. RI . None. MARINE . Small Craft Advisory until 11 AM EDT Friday for ANZ232>235-237. Small Craft Advisory from 8 PM this evening to 8 AM EDT Friday for ANZ236. Small Craft Advisory until 2 PM EDT Friday for ANZ250. Small Craft Advisory until 8 PM EDT Friday for ANZ254>256.

SYNOPSIS . WTB/Gaucher NEAR TERM . Chai/Gaucher SHORT TERM . Gaucher LONG TERM . WTB AVIATION . WTB/Gaucher MARINE . WTB/Gaucher


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44013 - BOSTON 16 NM East of Boston, MA 24 mi45 min SW 7.8G9.7 63°F1013 hPa
44090 24 mi59 min 62°F2 ft
BHBM3 - 8443970 - Boston, MA 30 mi55 min 74°F 1012.1 hPa
FRVM3 - 8447386 - Fall River, MA 31 mi55 min 72°F 65°F1014.5 hPa
WAXM3 - Waquoit Bay Reserve, MA 31 mi100 min S 2.9 73°F 1014 hPa65°F
BLTM3 - 8447387 - Borden Flats Light at Fall River, MA 31 mi55 min SSW 15G18 71°F 1013.8 hPa
FRXM3 32 mi55 min 72°F 62°F
BZBM3 - 8447930 - Woods Hole, MA 33 mi55 min 66°F 65°F1014.5 hPa
44029 - Buoy A0102 - Mass. Bay/Stellwagen 37 mi81 min S 5.8G7.8 63°F 1 ft1012.1 hPa
CPTR1 - 8452944 - Conimicut Light, RI 38 mi55 min NW 17G19 71°F 65°F1013 hPa
PVDR1 38 mi55 min SSW 12G16 73°F 1013.6 hPa
FOXR1 - 8454000 - Providence, RI 38 mi55 min WSW 11G16 75°F 63°F1013.4 hPa
NAXR1 - Narragansett Bay Reserve, RI 41 mi100 min WSW 7 73°F 1014 hPa55°F
PRUR1 41 mi55 min 66°F 63°F
PTCR1 - 8452951 - Potter Cove, Prudence Island, RI 41 mi55 min WSW 5.1G8.9 71°F 1014.6 hPa
44020 - NANTUCKET SOUND 42 mi45 min SW 16G19 66°F 64°F1014.4 hPa
BUZM3 - Buzzards Bay, MA 45 mi85 min SW 19G20 1015.2 hPa (-1.7)
QPTR1 - 8454049 - Quonset Point, RI 46 mi55 min SW 13G16 70°F 64°F1013.6 hPa
CHTM3 47 mi55 min SSW 8G18 66°F 61°F1014.2 hPa
NWPR1 - 8452660 - Newport, RI 47 mi55 min SSW 14G17 66°F 65°F1014.1 hPa

Wind History for Borden Flats Light at Fall River, MA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Plymouth, Plymouth Municipal Airport, MA6 mi33 minSW 13 G 1910.00 miFair73°F51°F46%1013.3 hPa
Marshfield Airport, MA7 mi30 minSW 11 G 1710.00 miFair73°F52°F47%1012.9 hPa
Taunton, Taunton Municipal Airport, MA17 mi33 minSSW 8 G 1510.00 miFair72°F53°F52%1013.2 hPa

Link to 5 minute data for KPYM

Wind History from PYM (wind in knots)
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Last 24hrE4000000S3000SW300000SW5SW5SW5S7SW10
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1 day agoW13
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2 days agoNW10W6NW6NW9W8W7W8W8W8W7W7W8W8W7W5W8W9W11
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Tide / Current Tables for Plymouth, Massachusetts (2)
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Plymouth
Click for Map
Thu -- 12:20 AM EDT     9.85 feet High Tide
Thu -- 06:35 AM EDT     0.51 feet Low Tide
Thu -- 07:02 AM EDT     Sunrise
Thu -- 07:51 AM EDT     Moonset
Thu -- 12:32 PM EDT     10.28 feet High Tide
Thu -- 05:51 PM EDT     Sunset
Thu -- 06:33 PM EDT     Moonrise
Thu -- 07:01 PM EDT     0.01 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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Tide / Current Tables for Cape Cod Canal, Massachusetts Current
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Cape Cod Canal
Click for Map
Thu -- 01:20 AM EDT     -4.56 knots Max Ebb
Thu -- 04:31 AM EDT     0.20 knots Slack
Thu -- 07:01 AM EDT     Sunrise
Thu -- 07:37 AM EDT     4.32 knots Max Flood
Thu -- 07:51 AM EDT     Moonset
Thu -- 10:49 AM EDT     -0.17 knots Slack
Thu -- 01:38 PM EDT     -4.55 knots Max Ebb
Thu -- 04:47 PM EDT     0.03 knots Slack
Thu -- 05:51 PM EDT     Sunset
Thu -- 06:33 PM EDT     Moonrise
Thu -- 07:54 PM EDT     4.34 knots Max Flood
Thu -- 11:11 PM EDT     -0.21 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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