Marine Weather and Tide Forecast for Ocean Bluff-Brant Rock, MA
September 13, 2024 2:15 AM EDT (06:15 UTC) Change Location
 | Sunrise 6:20 AM Sunset 6:57 PM Moonrise 4:42 PM Moonset 12:20 AM |
ANZ251 Massachusetts Bay And Ipswich Bay- 103 Am Edt Fri Sep 13 2024
Rest of tonight - SW winds 5 to 10 kt. Seas around 2 ft. Wave detail: se 2 ft at 3 seconds and E 1 foot at 8 seconds.
Fri - SW winds 5 to 10 kt, becoming S in the afternoon. Seas around 2 ft in the morning, then 1 foot or less. Wave detail: sw 1 foot at 3 seconds and E 1 foot at 3 seconds, becoming se 1 foot at 3 seconds and E 1 foot at 8 seconds. Patchy fog in the morning with vsby 1 nm or less.
Fri night - S winds 5 to 10 kt, becoming W after midnight. Seas 1 foot or less. Wave detail: se 1 foot at 3 seconds and E 1 foot at 8 seconds.
Sat - N winds 5 to 10 kt, becoming ne in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave detail: sw 1 foot at 3 seconds and E 1 foot at 3 seconds, becoming ne 1 foot at 3 seconds and E 1 foot at 9 seconds.
Sat night - E winds 5 to 10 kt, becoming ne after midnight. Seas around 2 ft. Wave detail: E 2 ft at 9 seconds and ne 1 foot at 3 seconds. Patchy fog after midnight with vsby 1 to 3 nm.
Sun and Sun night - SW winds 5 to 10 kt. Seas around 2 ft. Wave detail: E 2 ft at 9 seconds and ne 1 foot at 5 seconds. Patchy fog. Vsby 1 nm or less.
Mon - S winds 5 to 10 kt. Seas around 2 ft. Patchy fog. Vsby 1 to 3 nm.
Mon night through Tue night - SW winds 5 to 10 kt. Seas around 2 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.
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 103 Am Edt Fri Sep 13 2024
Synopsis for massachusetts and rhode island coastal waters - High pres will remain over the waters through at least the middle portion of next week. Mainly light winds and low wave heights are expected. There is a risk for nighttime fog over the waters starting tonight into the weekend.
FXUS61 KBOX 130223 AFDBOX
Area Forecast Discussion National Weather Service Boston/Norton MA 1023 PM EDT Thu Sep 12 2024
SYNOPSIS
Mainly dry weather and above normal temperatures expected Friday. There is a low chance of an isolated shower or storm in northeast MA late afternoon Friday. Otherwise, high pressure will continue to dominate our weather through at least early next week, maintaining dry weather and above normal temperatures for the foreseeable future.
NEAR TERM /UNTIL 6 AM FRIDAY MORNING/
1010 PM Update:
No major changes needed to the going forecast. Clear skies and a light southerly wind is allowing for good radiational cooling.
Dewpoints are a little higher than last night and we'll be monitoring for fog development south of the Mass Pike, though we're probably another couple hours away before we start seeing development occur. Could need either an SPS or possible advisory for fog but will make that final determination pending observational trends.
Previous discussion:
As things stand at this hour, temperatures are plummeting quickly across SE MA already in the mid 60s, but still in the 70s across western MA and CT. With surface high pressure staying put over the region, expect another night of mainly clear skies and radiational cooling. Overnight low once again drop into the low to mid 50s. Surface moisture trends higher than the previous night. Higher dewpoint air stays trapped under a strong temperature inversion with drier mid and upper levels.
This will support potential for fog development overnight. In additional to the usual prone spots along the CT River Valley, HRRR guidance has been consistently highlighting potential for patchy fog in areas of the CT, RI and southeast MA, generally south of the Mass Pike. Areas can see patchy fog with visibilities 3-5 SM, with 1/2-1SM in spotty areas. In terms of timing, fog may develop in the 12-2am timeframe, increasing in coverage as temperatures continue to cool at the surface. There is some uncertainty in how long it sticks around, but HRRR means seem to agree on it slowly improving throughout early Friday morning (7am-10am).
SHORT TERM /6 AM FRIDAY MORNING THROUGH SATURDAY/
Friday:
Once fog erodes, we'll be on track for another warm September day Friday under surface high pressure. 850mb temperatures warm a degree or two from Thursday supporting highs in the upper 70s and low 80s across most spot. Southern New England stays on the east periphery of an upper ridge Friday with a brief shortwave trough dropping south along it in the afternoon. Overall, this won't amount to much given limited synoptic support and moisture. With 50-600 J/kg of MLCAPE, instability will be sufficient enough to support a few weak showers or a stray storm across northeast MA in the afternoon-early evening timeframe. Given the limited support, it will be isolated and thus resulting in a lower probability (<15%).
Friday Night:
Region remains under the influence of an upper ridge and surface high pressure. This will likely support the set-up of ample radiational cooling with low-level moisture trapping beneath the subsidence inversion. This will lead to potential for fog/low stratus overnight in similar areas as Friday night in CT, RI and southeast MA, mainly south of the Mass Pike.
LONG TERM /SATURDAY NIGHT THROUGH THURSDAY/
The dry weather pattern continues well into the extended forecast as guidance agrees that an upper-level blocking ridge will keep high pressure parked over the region. Trended high temperatures just a bit cooler then the NBM For the weekend into early next week with weak onshore flow, but temps should still top out in the upper 70s to low 80s each day with clear skies. With the longer nights along with good radiational cooling conditions, blended NBM with cooler CONSMOS data for overnight lows through Tuesday night. The warmest night appears to be Saturday night, where dewpoints in the upper 50s to low 60s will keep temps in the upper 50s. Sunday and beyond, dewpoints begin to fall back to the low to mid 50s again which will allow overnight temps to drop down into the low to mid 50s as well.
Expect patchy radiation fog to develop each night, especially with low level moisture getting caught underneath the subsidence inversion due to the upper level ridge.
Looking way ahead to late next week, guidance had indicated the upper-level ridge may start to break down, however, it is now trending towards rebuilding the ridge back in. This should keep any substantial precip south of SNE. NBM POPS for Wednesday and beyond have decreased from 30% to 10%.
We continue to monitor tropical development in the eastern Atlantic and near the SE Atlantic Coast. NHC shows several areas of possible tropical development, along with Tropical Depression Seven. With the blocking ridge overhead, this should steer any tropical activity away from our region. For more information, please visit www.nhc.noaa.gov.
AVIATION /02Z FRIDAY THROUGH TUESDAY/
Forecast Confidence Levels:
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Tonight: High confidence overall, but moderate on fog development and coverage.
Mainly VFR along and north of the Mass Pike, although should be a better chance for radiational BR/FG across CT-RI-southeast MA. There is potential for FG/BR to linger within the first few hours after sunrise. Still uncertainty on exact end time, but will likely see improvement in the 11-14z timeframe. Light SSW winds, calm at times.
Friday and Friday Night: Moderate to high confidence.
Overnight fog could linger around CT-RI-Southeast MA until 15z, then become VFR all airports. SSW winds 5-10 kts for most of the terminals. A low (<15%) chance at a SHRA/TS near BED after 20z Fri until sundown, but dry conditions appear more likely.
KBOS TAF...High confidence in TAF. SE winds this afternoon 5-10 kts transitioning to SW after 22Z. For Friday, sea breeze develops in 16-18z timeframe, similar to today with SE winds 5-10 kts.
KBDL TAF...High confidence in TAF, moderate on fog dissipation timing. VFR through this evening. Fog is more likely after 05z Fri. If fog develops, it may linger in the first couple of hours of sunrise. There should be gradual improvement in the 11-14z timeframe, likely VFR by 15z.
Outlook /Saturday Night through Tuesday/...
Saturday Night: Mainly VFR, with local IFR possible. Patchy BR.
Sunday: VFR. Patchy BR.
Sunday Night: Mainly VFR, with areas IFR possible. Patchy FG.
Monday: VFR.
Monday Night: Mainly VFR, with local IFR possible. Patchy FG.
Tuesday: VFR.
MARINE
Forecaster Confidence Levels:
Low - less than 30 percent.
Medium - 30 to 60 percent.
High - greater than 60 percent.
Through Friday: High confidence.
High pressure will continue remains over the waters for the next several days. Light winds with daily sea breezes are expected, and seas 2 ft or less expected.
Fog may develop tonight over the southern waters and near Cape Cod Bay, which could reduce visbys to under 1 mile. There is also a low (<15%) chance at a thunderstorm over the northeast waters late Friday afternoon, although dry weather should prevail.
Friday Night:
Patchy fog possible again overnight Friday over the southern water and near Cape Cod bay (moderate confidence). Still uncertainty in coverage.
Outlook /Saturday Night through Tuesday/...
Saturday Night: Winds less than 25 kt. Patchy fog. Local visibility 1 to 3 nm.
Sunday: Winds less than 25 kt.
Sunday Night: Winds less than 25 kt. Patchy fog.
Monday: Winds less than 25 kt.
Monday Night: Winds less than 25 kt. Patchy fog. Local visibility 1 to 3 nm.
Tuesday: Winds less than 25 kt.
BOX WATCHES/WARNINGS/ADVISORIES
CT...None.
MA...None.
RI...None.
MARINE...None.
Area Forecast Discussion National Weather Service Boston/Norton MA 1023 PM EDT Thu Sep 12 2024
SYNOPSIS
Mainly dry weather and above normal temperatures expected Friday. There is a low chance of an isolated shower or storm in northeast MA late afternoon Friday. Otherwise, high pressure will continue to dominate our weather through at least early next week, maintaining dry weather and above normal temperatures for the foreseeable future.
NEAR TERM /UNTIL 6 AM FRIDAY MORNING/
1010 PM Update:
No major changes needed to the going forecast. Clear skies and a light southerly wind is allowing for good radiational cooling.
Dewpoints are a little higher than last night and we'll be monitoring for fog development south of the Mass Pike, though we're probably another couple hours away before we start seeing development occur. Could need either an SPS or possible advisory for fog but will make that final determination pending observational trends.
Previous discussion:
As things stand at this hour, temperatures are plummeting quickly across SE MA already in the mid 60s, but still in the 70s across western MA and CT. With surface high pressure staying put over the region, expect another night of mainly clear skies and radiational cooling. Overnight low once again drop into the low to mid 50s. Surface moisture trends higher than the previous night. Higher dewpoint air stays trapped under a strong temperature inversion with drier mid and upper levels.
This will support potential for fog development overnight. In additional to the usual prone spots along the CT River Valley, HRRR guidance has been consistently highlighting potential for patchy fog in areas of the CT, RI and southeast MA, generally south of the Mass Pike. Areas can see patchy fog with visibilities 3-5 SM, with 1/2-1SM in spotty areas. In terms of timing, fog may develop in the 12-2am timeframe, increasing in coverage as temperatures continue to cool at the surface. There is some uncertainty in how long it sticks around, but HRRR means seem to agree on it slowly improving throughout early Friday morning (7am-10am).
SHORT TERM /6 AM FRIDAY MORNING THROUGH SATURDAY/
Friday:
Once fog erodes, we'll be on track for another warm September day Friday under surface high pressure. 850mb temperatures warm a degree or two from Thursday supporting highs in the upper 70s and low 80s across most spot. Southern New England stays on the east periphery of an upper ridge Friday with a brief shortwave trough dropping south along it in the afternoon. Overall, this won't amount to much given limited synoptic support and moisture. With 50-600 J/kg of MLCAPE, instability will be sufficient enough to support a few weak showers or a stray storm across northeast MA in the afternoon-early evening timeframe. Given the limited support, it will be isolated and thus resulting in a lower probability (<15%).
Friday Night:
Region remains under the influence of an upper ridge and surface high pressure. This will likely support the set-up of ample radiational cooling with low-level moisture trapping beneath the subsidence inversion. This will lead to potential for fog/low stratus overnight in similar areas as Friday night in CT, RI and southeast MA, mainly south of the Mass Pike.
LONG TERM /SATURDAY NIGHT THROUGH THURSDAY/
The dry weather pattern continues well into the extended forecast as guidance agrees that an upper-level blocking ridge will keep high pressure parked over the region. Trended high temperatures just a bit cooler then the NBM For the weekend into early next week with weak onshore flow, but temps should still top out in the upper 70s to low 80s each day with clear skies. With the longer nights along with good radiational cooling conditions, blended NBM with cooler CONSMOS data for overnight lows through Tuesday night. The warmest night appears to be Saturday night, where dewpoints in the upper 50s to low 60s will keep temps in the upper 50s. Sunday and beyond, dewpoints begin to fall back to the low to mid 50s again which will allow overnight temps to drop down into the low to mid 50s as well.
Expect patchy radiation fog to develop each night, especially with low level moisture getting caught underneath the subsidence inversion due to the upper level ridge.
Looking way ahead to late next week, guidance had indicated the upper-level ridge may start to break down, however, it is now trending towards rebuilding the ridge back in. This should keep any substantial precip south of SNE. NBM POPS for Wednesday and beyond have decreased from 30% to 10%.
We continue to monitor tropical development in the eastern Atlantic and near the SE Atlantic Coast. NHC shows several areas of possible tropical development, along with Tropical Depression Seven. With the blocking ridge overhead, this should steer any tropical activity away from our region. For more information, please visit www.nhc.noaa.gov.
AVIATION /02Z FRIDAY THROUGH TUESDAY/
Forecast Confidence Levels:
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Tonight: High confidence overall, but moderate on fog development and coverage.
Mainly VFR along and north of the Mass Pike, although should be a better chance for radiational BR/FG across CT-RI-southeast MA. There is potential for FG/BR to linger within the first few hours after sunrise. Still uncertainty on exact end time, but will likely see improvement in the 11-14z timeframe. Light SSW winds, calm at times.
Friday and Friday Night: Moderate to high confidence.
Overnight fog could linger around CT-RI-Southeast MA until 15z, then become VFR all airports. SSW winds 5-10 kts for most of the terminals. A low (<15%) chance at a SHRA/TS near BED after 20z Fri until sundown, but dry conditions appear more likely.
KBOS TAF...High confidence in TAF. SE winds this afternoon 5-10 kts transitioning to SW after 22Z. For Friday, sea breeze develops in 16-18z timeframe, similar to today with SE winds 5-10 kts.
KBDL TAF...High confidence in TAF, moderate on fog dissipation timing. VFR through this evening. Fog is more likely after 05z Fri. If fog develops, it may linger in the first couple of hours of sunrise. There should be gradual improvement in the 11-14z timeframe, likely VFR by 15z.
Outlook /Saturday Night through Tuesday/...
Saturday Night: Mainly VFR, with local IFR possible. Patchy BR.
Sunday: VFR. Patchy BR.
Sunday Night: Mainly VFR, with areas IFR possible. Patchy FG.
Monday: VFR.
Monday Night: Mainly VFR, with local IFR possible. Patchy FG.
Tuesday: VFR.
MARINE
Forecaster Confidence Levels:
Low - less than 30 percent.
Medium - 30 to 60 percent.
High - greater than 60 percent.
Through Friday: High confidence.
High pressure will continue remains over the waters for the next several days. Light winds with daily sea breezes are expected, and seas 2 ft or less expected.
Fog may develop tonight over the southern waters and near Cape Cod Bay, which could reduce visbys to under 1 mile. There is also a low (<15%) chance at a thunderstorm over the northeast waters late Friday afternoon, although dry weather should prevail.
Friday Night:
Patchy fog possible again overnight Friday over the southern water and near Cape Cod bay (moderate confidence). Still uncertainty in coverage.
Outlook /Saturday Night through Tuesday/...
Saturday Night: Winds less than 25 kt. Patchy fog. Local visibility 1 to 3 nm.
Sunday: Winds less than 25 kt.
Sunday Night: Winds less than 25 kt. Patchy fog.
Monday: Winds less than 25 kt.
Monday Night: Winds less than 25 kt. Patchy fog. Local visibility 1 to 3 nm.
Tuesday: Winds less than 25 kt.
BOX WATCHES/WARNINGS/ADVISORIES
CT...None.
MA...None.
RI...None.
MARINE...None.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| 44013 - BOSTON 16 NM East of Boston, MA | 14 mi | 35 min | SW 9.7G | 64°F | 65°F | 30.26 | 60°F | |
| 44090 | 26 mi | 45 min | 65°F | 67°F | ||||
| BHBM3 - 8443970 - Boston, MA | 27 mi | 45 min | 64°F | 30.24 | ||||
| NBGM3 | 39 mi | 45 min | N 4.1G | 62°F | 30.27 | |||
| FRVM3 - 8447386 - Fall River, MA | 42 mi | 45 min | 64°F | 71°F | 30.28 | |||
| BLTM3 - 8447387 - Borden Flats Light at Fall River, MA | 43 mi | 45 min | WNW 1.9G | 65°F | 30.27 | |||
| BZBM3 - 8447930 - Woods Hole, MA | 43 mi | 45 min | 67°F | 69°F | 30.26 | |||
| FRXM3 | 43 mi | 45 min | 62°F | 60°F | ||||
| CHTM3 | 48 mi | 45 min | 65°F | 30.26 | ||||
| FOXR1 - 8454000 - Providence, RI | 48 mi | 45 min | SSW 1G | 62°F | 68°F | 30.26 | ||
| PVDR1 | 48 mi | 45 min | SSW 1.9G | 62°F | 30.27 | |||
| 44020 - NANTUCKET SOUND | 49 mi | 35 min | SSW 9.7G | 69°F | 70°F | 30.25 | 66°F | |
| CPTR1 - 8452944 - Conimicut Light, RI | 49 mi | 45 min | WSW 2.9G | 61°F | 70°F | 30.27 |
toggle option: (graph/table)
Link to 1 hour of 5 minute data for KGHG
Terminal Aerodrome Forecast (TAF) for KGHG
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Terminal Aerodrome Forecast (TAF) for KGHG
Wind History graph: GHG
(wind in knots)Damons Point
Click for Map
Thu -- 12:53 AM EDT 1.36 feet Low Tide
Thu -- 06:20 AM EDT Sunrise
Thu -- 06:51 AM EDT 7.04 feet High Tide
Thu -- 01:04 PM EDT 2.02 feet Low Tide
Thu -- 03:54 PM EDT Moonrise
Thu -- 06:56 PM EDT Sunset
Thu -- 07:03 PM EDT 8.24 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Thu -- 12:53 AM EDT 1.36 feet Low Tide
Thu -- 06:20 AM EDT Sunrise
Thu -- 06:51 AM EDT 7.04 feet High Tide
Thu -- 01:04 PM EDT 2.02 feet Low Tide
Thu -- 03:54 PM EDT Moonrise
Thu -- 06:56 PM EDT Sunset
Thu -- 07:03 PM EDT 8.24 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Damons Point, North River, Massachusetts, Tide feet
| 12 am |
| 1.7 |
| 1 am |
| 1.4 |
| 2 am |
| 2 |
| 3 am |
| 3.2 |
| 4 am |
| 4.5 |
| 5 am |
| 5.7 |
| 6 am |
| 6.7 |
| 7 am |
| 7 |
| 8 am |
| 6.6 |
| 9 am |
| 5.6 |
| 10 am |
| 4.5 |
| 11 am |
| 3.4 |
| 12 pm |
| 2.5 |
| 1 pm |
| 2 |
| 2 pm |
| 2.5 |
| 3 pm |
| 3.8 |
| 4 pm |
| 5.2 |
| 5 pm |
| 6.6 |
| 6 pm |
| 7.7 |
| 7 pm |
| 8.2 |
| 8 pm |
| 7.9 |
| 9 pm |
| 6.9 |
| 10 pm |
| 5.5 |
| 11 pm |
| 4 |
Boston Harbor
Click for Map
Thu -- 12:29 AM EDT 0.00 knots Slack
Thu -- 02:30 AM EDT 0.95 knots Max Flood
Thu -- 06:04 AM EDT -0.00 knots Slack
Thu -- 06:21 AM EDT Sunrise
Thu -- 09:10 AM EDT -0.77 knots Max Ebb
Thu -- 12:44 PM EDT 0.00 knots Slack
Thu -- 02:51 PM EDT 1.04 knots Max Flood
Thu -- 03:56 PM EDT Moonrise
Thu -- 06:24 PM EDT -0.00 knots Slack
Thu -- 06:57 PM EDT Sunset
Thu -- 09:54 PM EDT -0.98 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Thu -- 12:29 AM EDT 0.00 knots Slack
Thu -- 02:30 AM EDT 0.95 knots Max Flood
Thu -- 06:04 AM EDT -0.00 knots Slack
Thu -- 06:21 AM EDT Sunrise
Thu -- 09:10 AM EDT -0.77 knots Max Ebb
Thu -- 12:44 PM EDT 0.00 knots Slack
Thu -- 02:51 PM EDT 1.04 knots Max Flood
Thu -- 03:56 PM EDT Moonrise
Thu -- 06:24 PM EDT -0.00 knots Slack
Thu -- 06:57 PM EDT Sunset
Thu -- 09:54 PM EDT -0.98 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Boston Harbor, Massachusetts Current, knots
| 12 am |
| -0.4 |
| 1 am |
| 0.4 |
| 2 am |
| 0.9 |
| 3 am |
| 0.9 |
| 4 am |
| 0.8 |
| 5 am |
| 0.6 |
| 6 am |
| 0 |
| 7 am |
| -0.4 |
| 8 am |
| -0.7 |
| 9 am |
| -0.8 |
| 10 am |
| -0.7 |
| 11 am |
| -0.7 |
| 12 pm |
| -0.4 |
| 1 pm |
| 0.2 |
| 2 pm |
| 0.9 |
| 3 pm |
| 1 |
| 4 pm |
| 0.9 |
| 5 pm |
| 0.7 |
| 6 pm |
| 0.3 |
| 7 pm |
| -0.3 |
| 8 pm |
| -0.7 |
| 9 pm |
| -0.9 |
| 10 pm |
| -1 |
| 11 pm |
| -0.9 |
Boston, MA,
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