Marine Weather and Tide Forecast for Bourne, MA
July 3, 2024 4:25 PM EDT (20:25 UTC) Change Location
 | Sunrise 5:10 AM Sunset 8:20 PM Moonrise 2:37 AM Moonset 6:46 PM |
ANZ234 Buzzards Bay- 403 Pm Edt Wed Jul 3 2024
Tonight - SW winds 5 to 10 kt. Seas around 2 ft. Wave detail: sw 1 foot at 3 seconds and se 1 foot at 7 seconds.
Thu - SW winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft. Wave detail: sw 2 ft at 4 seconds and se 1 foot at 8 seconds.
Thu night - SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft. Wave detail: sw 2 ft at 4 seconds and se 1 foot at 9 seconds. A chance of showers after midnight with vsby 1 to 3 nm.
Fri - SW winds 5 to 10 kt. Seas around 2 ft in the morning, then 1 foot or less. Wave detail: sw 1 foot at 5 seconds and E 1 foot at 8 seconds. A chance of showers in the morning with vsby 1 to 3 nm.
Fri night - S winds around 10 kt. Seas around 2 ft. Wave detail: sw 2 ft at 5 seconds and E 1 foot at 8 seconds. A chance of showers after midnight.
Sat and Sat night - SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave detail: sw 3 ft at 5 seconds and se 1 foot at 9 seconds. A chance of showers.
Sun - SW winds around 10 kt. Seas 2 to 3 ft. A chance of showers.
Sun night through Mon 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 403 Pm Edt Wed Jul 3 2024
Synopsis for massachusetts and rhode island coastal waters - High pressure over the waters of southern new england for Wednesday, but will be short-lived as it drifts east throughout the day and will move well off shore by independence day with a few showers possible. Unsettled weather returns this weekend with periods of rain and Thunderstorms.
FXUS61 KBOX 031956 AFDBOX
Area Forecast Discussion National Weather Service Boston/Norton MA 356 PM EDT Wed Jul 3 2024
SYNOPSIS
A warm front lifts north across the region late tonight bringing increasing humidity levels and a few showers or thunderstorms in the interior on Thursday. Very warm and humid weather this weekend and into early next week. Saturday will have the highest humidity levels. While there is a risk of rain and thunderstorms throughout the weekend and early next week, it won't rain continuously. There will be significant dry periods, with Saturday into Saturday night having the greatest chance for heavier rains.
NEAR TERM /UNTIL 6 AM THURSDAY MORNING/
High pres near the SNE coast drifts offshore tonight with broad SW flow in place. A mid level warm front will move across the region late tonight and will be accompanied by a modest instability burst as higher PWAT air and decreasing static stability advect into the region from the west. This may result in a few showers developing late tonight in the interior. Otherwise mainly dry conditions with increasing clouds. The evening will start out with just some high clouds so will likely see a period of radiational cooling with lows dropping to 60-65 before temps stabilize overnight.
SHORT TERM /6 AM THURSDAY MORNING THROUGH THURSDAY NIGHT/
Thursday...
A few morning showers possible with the mid level frontal passage, otherwise partial sunshine although expect more clouds than sun as the column will be quite moist with PWATs exceeding 2 inches. A weak shortwave approaches from the west in the afternoon which may lead to a few showers or a t-storm developing across interior MA into CT where marginal instability exists with CAPES around 500 J/kg. But areal coverage will be limited. No instability in the coastal plain which should remain dry. Temps aloft are pretty warm with 17C at 850 mb but cloud cover will prevent temps from achieving full potential. Highs generally low-mid 80s, except upper 70s near the south coast.
But humidity levels will be increasing as dewpoints rise to the mid- upper 60s.
Thursday night...
Any lingering evening convection in the interior should dissipate, then will have to watch for a renewed area of showers and isolated t- storms possibly developing and moving across the region late Thu night as a weak front sags south into the region. Areal coverage of any convection is uncertain as hi-res CAMs are not in agreement on the most preferred location. 2+ inch PWAT axis will shift southward but the south coast will remain on the northern edge of these higher PWATs and this may be where best chance of showers and a few t- storms will be.
Given the high PWATs and a weak boundary, localized heavy rainfall will be a risk with any convection that develops. It will be a mild and humid night with lows 65-70.
LONG TERM /FRIDAY THROUGH WEDNESDAY/
Friday:
There could be some lingering showers in the late morning along the south coast from the exiting frontal boundary, otherwise subtle height rises will lead to mainly dry conditions. There is a low chance for a low topped shower in Western MA and CT with a few hundred J/kg of SBCAPE. Temperatures and dewpoints will be on the rise as strong southerly flow kicks in with highs nearing 90F and dewpoints nearing 70F. Heat indicies Friday stay in the low 90s due to partial sunshine with diurnal cumulus clouds and high cirrus clouds filtering in ahead of the shortwave.
Saturday:
Shortwave trough exits out of the Great Lakes, but latest guidance has trended it further north keeping the forcing out of SNE. MUCAPE values do jump into the 1000-1500 J/kg range with sfc-6km bulk shear values nearing 30-40 knots. PWATS will be above 2.0 inches, possibly approaching 2.5 inches with warm cloud depths between 11kft to 13kft.
This environment is supportive for severe thunderstorms with very heavy rain and isolated flash flooding. The main questions that remains ahead of Saturday is how much capping will be present and if there will be enough forcing to overcome the cap.
Not quite as warm saturday due to the chance for precip and extensive cloud cover. Highs should be in the low to mid 80s with dewpoints in the low mid 70s. Even with could cover, the high dewpoints will push heat indices into the low 90s.
Sunday:
Upper level shortwave retreats to the NE with subtle mid level height rises in the afternoon. The column begins to dry out which will keep the region dry, but dewpoints remain near 70F. Mostly sunny skies will allow temperatures to reach the low 90s.
Next week:
The week starts out dry with rising heights. More unsettled weather looks possible going into middle to end of next week as the upper level ridge breaks down a bit. Temps stay warm early in the week in the upper 80s to low 90s, trending slightly cooler towards the middle to end of next week.
AVIATION /20Z WEDNESDAY THROUGH MONDAY/
Forecast Confidence Levels:
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Through 00z:
VFR. S wind 10-15 kt with gusts to 20 kt. Sea-breeze along eastern MA coast kicks out 21-22z with wind shift to S.
Tonight: High confidence.
VFR cigs. Low risk of a shower 09-12z in the interior. SW wind 5-15 kt.
Thursday: High confidence.
Mainly VFR cigs, but patchy MVFR possible over higher elevations. Isolated morning shower possible, then a few showers or a t-storm possible in the afternoon in the interior.
SW wind 10-20 kt.
Thursday night: Moderate confidence.
Cigs gradually lowering to MVFR with IFR possible near the south coast. A few evening showers possible, then scattered showers and possibly a t-storm near the south coast after midnight.
KBOS TAF...High confidence in TAF. Sea-breeze kicks out 21-22z with wind shift to S.
KBDL TAF...High confidence in TAF.
Outlook /Friday through Monday/...
Friday: Mainly VFR, with local MVFR possible. Slight chance SHRA.
Friday Night: Mainly VFR, with local IFR possible. Chance SHRA, isolated TSRA.
Saturday: MVFR/IFR conditions possible. Breezy. Chance SHRA, isolated TSRA.
Saturday Night: Mainly VFR, with local IFR possible. Breezy.
Chance SHRA, isolated TSRA.
Sunday through Monday: VFR.
MARINE
Forecaster Confidence Levels:
Low - less than 30 percent.
Medium - 30 to 60 percent.
High - greater than 60 percent.
Tonight through Thursday night...High confidence.
Winds and seas below SCA thresholds. Light SW winds tonight, then SW 10-20 kt Thu and Thu night. Areas of fog and reduced vsbys should develop Thu night with scattered showers and possibly a t-storm late Thu night.
Seas through the period generally 3 ft or less on all waters.
Outlook /Friday through Monday/...
Friday: Winds less than 25 kt. Slight chance of rain showers.
Friday Night: Winds less than 25 kt. Seas locally approaching 5 ft. Slight chance of rain showers, isolated thunderstorms.
Saturday through Saturday Night: Winds less than 25 kt. Seas up to 5 ft. Chance of rain showers, isolated thunderstorms.
Sunday: Winds less than 25 kt. Areas of seas approaching 5 ft.
Slight chance of rain showers, isolated thunderstorms.
Sunday Night: Winds less than 25 kt. Seas locally approaching 5 ft.
Monday: 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 356 PM EDT Wed Jul 3 2024
SYNOPSIS
A warm front lifts north across the region late tonight bringing increasing humidity levels and a few showers or thunderstorms in the interior on Thursday. Very warm and humid weather this weekend and into early next week. Saturday will have the highest humidity levels. While there is a risk of rain and thunderstorms throughout the weekend and early next week, it won't rain continuously. There will be significant dry periods, with Saturday into Saturday night having the greatest chance for heavier rains.
NEAR TERM /UNTIL 6 AM THURSDAY MORNING/
High pres near the SNE coast drifts offshore tonight with broad SW flow in place. A mid level warm front will move across the region late tonight and will be accompanied by a modest instability burst as higher PWAT air and decreasing static stability advect into the region from the west. This may result in a few showers developing late tonight in the interior. Otherwise mainly dry conditions with increasing clouds. The evening will start out with just some high clouds so will likely see a period of radiational cooling with lows dropping to 60-65 before temps stabilize overnight.
SHORT TERM /6 AM THURSDAY MORNING THROUGH THURSDAY NIGHT/
Thursday...
A few morning showers possible with the mid level frontal passage, otherwise partial sunshine although expect more clouds than sun as the column will be quite moist with PWATs exceeding 2 inches. A weak shortwave approaches from the west in the afternoon which may lead to a few showers or a t-storm developing across interior MA into CT where marginal instability exists with CAPES around 500 J/kg. But areal coverage will be limited. No instability in the coastal plain which should remain dry. Temps aloft are pretty warm with 17C at 850 mb but cloud cover will prevent temps from achieving full potential. Highs generally low-mid 80s, except upper 70s near the south coast.
But humidity levels will be increasing as dewpoints rise to the mid- upper 60s.
Thursday night...
Any lingering evening convection in the interior should dissipate, then will have to watch for a renewed area of showers and isolated t- storms possibly developing and moving across the region late Thu night as a weak front sags south into the region. Areal coverage of any convection is uncertain as hi-res CAMs are not in agreement on the most preferred location. 2+ inch PWAT axis will shift southward but the south coast will remain on the northern edge of these higher PWATs and this may be where best chance of showers and a few t- storms will be.
Given the high PWATs and a weak boundary, localized heavy rainfall will be a risk with any convection that develops. It will be a mild and humid night with lows 65-70.
LONG TERM /FRIDAY THROUGH WEDNESDAY/
Friday:
There could be some lingering showers in the late morning along the south coast from the exiting frontal boundary, otherwise subtle height rises will lead to mainly dry conditions. There is a low chance for a low topped shower in Western MA and CT with a few hundred J/kg of SBCAPE. Temperatures and dewpoints will be on the rise as strong southerly flow kicks in with highs nearing 90F and dewpoints nearing 70F. Heat indicies Friday stay in the low 90s due to partial sunshine with diurnal cumulus clouds and high cirrus clouds filtering in ahead of the shortwave.
Saturday:
Shortwave trough exits out of the Great Lakes, but latest guidance has trended it further north keeping the forcing out of SNE. MUCAPE values do jump into the 1000-1500 J/kg range with sfc-6km bulk shear values nearing 30-40 knots. PWATS will be above 2.0 inches, possibly approaching 2.5 inches with warm cloud depths between 11kft to 13kft.
This environment is supportive for severe thunderstorms with very heavy rain and isolated flash flooding. The main questions that remains ahead of Saturday is how much capping will be present and if there will be enough forcing to overcome the cap.
Not quite as warm saturday due to the chance for precip and extensive cloud cover. Highs should be in the low to mid 80s with dewpoints in the low mid 70s. Even with could cover, the high dewpoints will push heat indices into the low 90s.
Sunday:
Upper level shortwave retreats to the NE with subtle mid level height rises in the afternoon. The column begins to dry out which will keep the region dry, but dewpoints remain near 70F. Mostly sunny skies will allow temperatures to reach the low 90s.
Next week:
The week starts out dry with rising heights. More unsettled weather looks possible going into middle to end of next week as the upper level ridge breaks down a bit. Temps stay warm early in the week in the upper 80s to low 90s, trending slightly cooler towards the middle to end of next week.
AVIATION /20Z WEDNESDAY THROUGH MONDAY/
Forecast Confidence Levels:
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Through 00z:
VFR. S wind 10-15 kt with gusts to 20 kt. Sea-breeze along eastern MA coast kicks out 21-22z with wind shift to S.
Tonight: High confidence.
VFR cigs. Low risk of a shower 09-12z in the interior. SW wind 5-15 kt.
Thursday: High confidence.
Mainly VFR cigs, but patchy MVFR possible over higher elevations. Isolated morning shower possible, then a few showers or a t-storm possible in the afternoon in the interior.
SW wind 10-20 kt.
Thursday night: Moderate confidence.
Cigs gradually lowering to MVFR with IFR possible near the south coast. A few evening showers possible, then scattered showers and possibly a t-storm near the south coast after midnight.
KBOS TAF...High confidence in TAF. Sea-breeze kicks out 21-22z with wind shift to S.
KBDL TAF...High confidence in TAF.
Outlook /Friday through Monday/...
Friday: Mainly VFR, with local MVFR possible. Slight chance SHRA.
Friday Night: Mainly VFR, with local IFR possible. Chance SHRA, isolated TSRA.
Saturday: MVFR/IFR conditions possible. Breezy. Chance SHRA, isolated TSRA.
Saturday Night: Mainly VFR, with local IFR possible. Breezy.
Chance SHRA, isolated TSRA.
Sunday through Monday: VFR.
MARINE
Forecaster Confidence Levels:
Low - less than 30 percent.
Medium - 30 to 60 percent.
High - greater than 60 percent.
Tonight through Thursday night...High confidence.
Winds and seas below SCA thresholds. Light SW winds tonight, then SW 10-20 kt Thu and Thu night. Areas of fog and reduced vsbys should develop Thu night with scattered showers and possibly a t-storm late Thu night.
Seas through the period generally 3 ft or less on all waters.
Outlook /Friday through Monday/...
Friday: Winds less than 25 kt. Slight chance of rain showers.
Friday Night: Winds less than 25 kt. Seas locally approaching 5 ft. Slight chance of rain showers, isolated thunderstorms.
Saturday through Saturday Night: Winds less than 25 kt. Seas up to 5 ft. Chance of rain showers, isolated thunderstorms.
Sunday: Winds less than 25 kt. Areas of seas approaching 5 ft.
Slight chance of rain showers, isolated thunderstorms.
Sunday Night: Winds less than 25 kt. Seas locally approaching 5 ft.
Monday: Winds less than 25 kt.
BOX WATCHES/WARNINGS/ADVISORIES
CT...None.
MA...None.
RI...None.
MARINE...None.
toggle option: (graph/table)
| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Air | DewPt | RH | inHg |
| KFMH CAPE COD COAST GUARD AIR STATION,MA | 7 sm | 40 min | SSW 10 | 10 sm | Clear | 79°F | 55°F | 45% | 30.17 | |
| KPYM PLYMOUTH MUNI,MA | 13 sm | 33 min | S 07 | 10 sm | Clear | 81°F | 52°F | 37% | 30.15 | |
| KHYA BARNSTABLE MUNIBOARDMAN/POLANDO FIELD,MA | 18 sm | 29 min | SSW 10 | 10 sm | Clear | 75°F | 57°F | 54% | 30.15 | |
| KEWB NEW BEDFORD RGNL,MA | 19 sm | 32 min | SSW 11G19 | 10 sm | Clear | 81°F | 55°F | 42% | 30.15 | |
| KMVY MARTHA'S VINEYARD,MA | 24 sm | 32 min | SSW 10 | 10 sm | Clear | 75°F | 57°F | 54% | 30.17 | |
| KTAN TAUNTON MUNI KING FIELD,MA | 24 sm | 33 min | SSW 11 | 10 sm | Clear | 82°F | 54°F | 37% | 30.14 |
Link to 1 hour of 5 minute data for KFMH
Terminal Aerodrome Forecast (TAF) for KFMH
toggle option: (graph/table)
Terminal Aerodrome Forecast (TAF) for KFMH
Wind History graph: FMH
(wind in knots)Tide / Current for Cape Cod Canal, Buzzards Bay Entrance, Massachusetts
EDIT Weekend mode (on/off) HIDE Help
Cape Cod Canal
Click for Map
Wed -- 02:33 AM EDT -0.44 feet Low Tide
Wed -- 02:37 AM EDT Moonrise
Wed -- 05:13 AM EDT Sunrise
Wed -- 07:30 AM EDT 3.16 feet High Tide
Wed -- 02:37 PM EDT 0.30 feet Low Tide
Wed -- 06:46 PM EDT Moonset
Wed -- 08:05 PM EDT 4.61 feet High Tide
Wed -- 08:20 PM EDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 02:33 AM EDT -0.44 feet Low Tide
Wed -- 02:37 AM EDT Moonrise
Wed -- 05:13 AM EDT Sunrise
Wed -- 07:30 AM EDT 3.16 feet High Tide
Wed -- 02:37 PM EDT 0.30 feet Low Tide
Wed -- 06:46 PM EDT Moonset
Wed -- 08:05 PM EDT 4.61 feet High Tide
Wed -- 08:20 PM EDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Cape Cod Canal, Buzzards Bay Entrance, Massachusetts, Tide feet
| 12 am |
| 0.9 |
| 1 am |
| 0.2 |
| 2 am |
| -0.3 |
| 3 am |
| -0.4 |
| 4 am |
| 0.4 |
| 5 am |
| 1.5 |
| 6 am |
| 2.5 |
| 7 am |
| 3.1 |
| 8 am |
| 3.1 |
| 9 am |
| 2.6 |
| 10 am |
| 1.8 |
| 11 am |
| 1.2 |
| 12 pm |
| 0.8 |
| 1 pm |
| 0.6 |
| 2 pm |
| 0.4 |
| 3 pm |
| 0.3 |
| 4 pm |
| 0.9 |
| 5 pm |
| 2 |
| 6 pm |
| 3.3 |
| 7 pm |
| 4.2 |
| 8 pm |
| 4.6 |
| 9 pm |
| 4.3 |
| 10 pm |
| 3.5 |
| 11 pm |
| 2.4 |
Cape Cod Canal
Click for Map
Wed -- 01:40 AM EDT 0.19 knots Slack
Wed -- 02:37 AM EDT Moonrise
Wed -- 04:54 AM EDT 4.25 knots Max Flood
Wed -- 05:12 AM EDT Sunrise
Wed -- 08:13 AM EDT -0.20 knots Slack
Wed -- 10:56 AM EDT -4.22 knots Max Ebb
Wed -- 02:05 PM EDT 0.19 knots Slack
Wed -- 05:11 PM EDT 4.06 knots Max Flood
Wed -- 06:46 PM EDT Moonset
Wed -- 08:20 PM EDT Sunset
Wed -- 08:20 PM EDT -0.08 knots Slack
Wed -- 11:19 PM EDT -4.57 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 01:40 AM EDT 0.19 knots Slack
Wed -- 02:37 AM EDT Moonrise
Wed -- 04:54 AM EDT 4.25 knots Max Flood
Wed -- 05:12 AM EDT Sunrise
Wed -- 08:13 AM EDT -0.20 knots Slack
Wed -- 10:56 AM EDT -4.22 knots Max Ebb
Wed -- 02:05 PM EDT 0.19 knots Slack
Wed -- 05:11 PM EDT 4.06 knots Max Flood
Wed -- 06:46 PM EDT Moonset
Wed -- 08:20 PM EDT Sunset
Wed -- 08:20 PM EDT -0.08 knots Slack
Wed -- 11:19 PM EDT -4.57 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Cape Cod Canal, Massachusetts Current, knots
| 12 am |
| -3.8 |
| 1 am |
| -2.5 |
| 2 am |
| 1.7 |
| 3 am |
| 3.4 |
| 4 am |
| 4.1 |
| 5 am |
| 4.3 |
| 6 am |
| 4 |
| 7 am |
| 3.3 |
| 8 am |
| 1.5 |
| 9 am |
| -2.8 |
| 10 am |
| -3.9 |
| 11 am |
| -4.2 |
| 12 pm |
| -3.9 |
| 1 pm |
| -3 |
| 2 pm |
| -0.8 |
| 3 pm |
| 2.8 |
| 4 pm |
| 3.7 |
| 5 pm |
| 4.1 |
| 6 pm |
| 3.9 |
| 7 pm |
| 3.3 |
| 8 pm |
| 1.8 |
| 9 pm |
| -2.6 |
| 10 pm |
| -4 |
| 11 pm |
| -4.5 |
Boston, MA,
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