Marine Weather and Tide Forecast for Gloucester, MA
June 30, 2024 8:19 PM EDT (00:19 UTC) Change Location
 | Sunrise 5:06 AM Sunset 8:26 PM Moonrise 1:01 AM Moonset 3:05 PM |
ANZ251 Massachusetts Bay And Ipswich Bay- 703 Pm Edt Sun Jun 30 2024
Tonight - SW winds 10 to 15 kt with gusts up to 20 kt, becoming nw after midnight. Seas 2 to 3 ft. Wave detail: sw 2 ft at 4 seconds and se 2 ft at 8 seconds. A chance of showers and tstms this evening, then a slight chance of showers after midnight. Vsby 1 to 3 nm.
Mon - N winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas around 2 ft. Wave detail: nw 2 ft at 3 seconds and E 2 ft at 7 seconds. A chance of showers in the afternoon.
Mon night - NW winds 5 to 10 kt. Seas around 2 ft. Wave detail: N 2 ft at 5 seconds.
Tue - N winds 5 to 10 kt, becoming ne in the afternoon. Seas around 2 ft. Wave detail: ne 2 ft at 5 seconds.
Tue night - S winds around 5 kt, becoming sw after midnight. Seas around 2 ft. Wave detail: E 2 ft at 6 seconds and W 1 foot at 2 seconds.
Wed - SW winds around 5 kt, becoming S 10 to 15 kt in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave detail: W 1 foot at 2 seconds and E 1 foot at 7 seconds, becoming S 2 ft at 3 seconds and E 1 foot at 8 seconds.
Wed night - S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers after midnight.
Thu - SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers.
Thu night - SW winds 10 to 15 kt. Seas around 2 ft.
Fri and Fri night - S winds 5 to 10 kt. Seas around 2 ft. A chance of showers.
winds and seas 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.
winds and seas 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 703 Pm Edt Sun Jun 30 2024
Synopsis for massachusetts and rhode island coastal waters - A cold front crosses the waters tonight. This will be followed by a high pres Tue and Wed. High pres moves farther offshore Thu, permitting a cold front to approach the waters.
FXUS61 KBOX 302309 AFDBOX
Area Forecast Discussion National Weather Service Boston/Norton MA 709 PM EDT Sun Jun 30 2024
SYNOPSIS
A strong cold front will move off the coast tonight and push the showers and thunderstorms offshore. An upper level disturbance will bring hit or miss showers Monday and possibly an isolated thunderstorm, otherwise dry weather with below normal temperatures. High pressure brings dry weather, seasonably warm temperatures and low levels of humidity for Tuesday and Wednesday. Turning more humid and unsettled for the Fourth of July thru the early part of the weekend with a couple of disturbances offering chances for clouds, showers and thunderstorms.
NEAR TERM /UNTIL 6 AM MONDAY MORNING/
7 PM update...
The severe thunderstorm watch has been allowed to expire as conditions are no longer favorable for widespread severe weather. This afternoon's line of storms has sufficiently worked over the atmosphere as to make it less conducive to strong storms with this second, more sporadic round of storms.
Mesoanalysis shows a good amount of SBCIN over much of the region helping to inhibit storm growth and with loss of daytime heating instability should continue to wane. Cells over Berkshire have so far been very shallow compared to the storms this afternoon, and we continue to expect very widely scattered storms out there to remain sub severe.
Previous Discussion...
Weakening QLCS moving E from RI and expect a continued weakening trend as storms push into south coastal MA due to stabilizing effect of marine layer near the coast. Just showers north of this line across central and eastern/NE MA. Scattered convection developing further north along the cold front across eastern NY and this activity has shown some increase in intensity.
Instability here is recovering with MLCAPES 1000-1500 J/kg so expecting a second round of storms late afternoon and evening as front approaches. Effective shear values quite impressive up to 55 kt so environment is very favorable for further intensification with potential for severe weather as storms move across MA.
Convection this evening will become focused south of the MA Pike and gradually move offshore through midnight although could linger a bit longer over the Cape/Islands. Otherwise, drying conditions behind the cold front overnight as winds shift to NW bringing a dewpoint drop into the 50s interior and low 60s near the south coast. Lows will range from the upper 50s western MA and low-mid 60s eastern MA.
SHORT TERM /6 AM MONDAY MORNING THROUGH MONDAY NIGHT/
Monday...
Sharp mid level trough with cold pool will be moving across the region with 500 mb temps dropping to -16 to -18C. This cold pool combined with daytime heating will result in BKN CU developing along with widely scattered showers, mainly east of the CT valley and especially across eastern MA. Marginal instability develops with CAPES up to 500 J/kg so can't rule out an isolated t-storm with small hail given cold temps aloft. Temps will be a bit below normal in post-frontal airmass with highs in the 70s and dewpoints in the 50s, to lower 60s near the coast.
Monday night...
Mid level trough moves offshore with rising heights as high pres builds in from the west. Any diurnal clouds will melt away in the evening leading to a mostly clear and somewhat cool night with light north winds. Lows will range through the 50s, except lower 60s outer Cape/Islands and Boston metro.
LONG TERM /TUESDAY THROUGH SUNDAY/
Highlights:
* Dry and warm with tolerable humidity levels for Tue and Wed.
* Turning more humid and active for Independence Day, and potentially into Fri/Sat too, with clouds, showers and storms possible. Exact timing remains uncertain.
30/00Z guidance suite was in rather good agreement with the overall synoptic pattern. Broad mid level ridging to start out this portion of the forecast is expected to transition to broad troughing towards next weekend. At the surface, a large high pressure should be over southern New England Tuesday into Wednesday. This high pressure should be far enough offshore to permit a cold front to approach from the west on Independence Day, but it is a little complicated.
The offshore high pressure may not permit this front to make it all the way into, or through, our region before being driven back north.
Dry weather with near to slightly above normal temperatures Tuesday and Wednesday. Increasing risk for some showers and isolated thunderstorms Wednesday night into Thursday. Also expecting increased humidity with above normal temperatures Thursday into Saturday. The timing and coverage of these showers and thunderstorms remains the most uncertain aspect of this forecast. With many outdoor plans for the holiday, it would be best to monitor the forecast over the coming days.
This uncertainty lingers late this week. As such, stayed close the NationalBlend solution for now, as it is ensemble-based. This meant a broad chance for showers and thunderstorms Friday into Saturday, but am not expecting it to be raining this entire time.
AVIATION /00Z MONDAY THROUGH FRIDAY/
Forecast Confidence Levels:
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Tonight...Moderate confidence.
Showers and t-storms especially south of the MA Pike will end from N to S through midnight. VFR interior with partial clearing overnight. IFR-LIFR south coast and Cape/Islands improving to VFR after midnight but lower cigs lingering at ACK. Wind shift to NW 00-06z from W to E.
Monday...High confidence.
VFR cigs 4-6k ft developing with scattered showers developing late morning through the afternoon, especially eastern MA. Can't rule out an isolated t-storm with small hail. N wind gusts to 20 kt.
Monday night...High confidence.
VFR with diminishing wind.
KBOS TAF...Moderate confidence in TAF.
Expect a few t-storms developing 20-00z with brief lower conditions and potential for strong wind gusts. Included a TEMPO group to highlight this potential. Otherwise VFR. SW winds shift to W this evening then NW overnight.
KBDL TAF...Moderate confidence in TAF.
One cluster of t-storms moving to the E but expect additional showers and storms into early evening. VFR but brief lower conditions and strong wind gusts in any storms. Wind shift to NW around 00z.
Outlook /Tuesday through Friday/...
Tuesday through Tuesday Night: VFR.
Wednesday: VFR. Breezy.
Wednesday Night: VFR. Breezy. Slight chance SHRA.
Independence Day: Mainly VFR, with local MVFR possible. Breezy.
Slight chance SHRA.
Thursday Night: VFR. Breezy. Slight chance SHRA.
Friday: Chance SHRA.
MARINE
Forecaster Confidence Levels:
Low - less than 30 percent.
Medium - 30 to 60 percent.
High - greater than 60 percent.
Tonight through Monday night...High confidence.
Gusty S-SW winds to 25 kt will be diminishing this evening as modest low level jet moves offshore. Winds shift to NW overnight then N during Monday with gusts to 20 kt. Diminishing N winds Mon night. Showers and t-storms through this evening, moving offshore from the south coastal waters late tonight.
Outlook /Tuesday through Friday/...
Tuesday through Wednesday: Winds less than 25 kt.
Wednesday Night: Winds less than 25 kt. Slight chance of rain showers.
Independence Day through Thursday Night: Winds less than 25 kt.
Seas locally approaching 5 ft. Slight chance of rain showers.
Friday: Winds less than 25 kt. Seas locally approaching 5 ft.
Chance of rain showers.
BOX WATCHES/WARNINGS/ADVISORIES
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 8 PM EDT this evening for ANZ231- 250.
Small Craft Advisory until 11 PM EDT this evening for ANZ232>235-237.
Small Craft Advisory until 6 AM EDT Monday for ANZ254>256.
Area Forecast Discussion National Weather Service Boston/Norton MA 709 PM EDT Sun Jun 30 2024
SYNOPSIS
A strong cold front will move off the coast tonight and push the showers and thunderstorms offshore. An upper level disturbance will bring hit or miss showers Monday and possibly an isolated thunderstorm, otherwise dry weather with below normal temperatures. High pressure brings dry weather, seasonably warm temperatures and low levels of humidity for Tuesday and Wednesday. Turning more humid and unsettled for the Fourth of July thru the early part of the weekend with a couple of disturbances offering chances for clouds, showers and thunderstorms.
NEAR TERM /UNTIL 6 AM MONDAY MORNING/
7 PM update...
The severe thunderstorm watch has been allowed to expire as conditions are no longer favorable for widespread severe weather. This afternoon's line of storms has sufficiently worked over the atmosphere as to make it less conducive to strong storms with this second, more sporadic round of storms.
Mesoanalysis shows a good amount of SBCIN over much of the region helping to inhibit storm growth and with loss of daytime heating instability should continue to wane. Cells over Berkshire have so far been very shallow compared to the storms this afternoon, and we continue to expect very widely scattered storms out there to remain sub severe.
Previous Discussion...
Weakening QLCS moving E from RI and expect a continued weakening trend as storms push into south coastal MA due to stabilizing effect of marine layer near the coast. Just showers north of this line across central and eastern/NE MA. Scattered convection developing further north along the cold front across eastern NY and this activity has shown some increase in intensity.
Instability here is recovering with MLCAPES 1000-1500 J/kg so expecting a second round of storms late afternoon and evening as front approaches. Effective shear values quite impressive up to 55 kt so environment is very favorable for further intensification with potential for severe weather as storms move across MA.
Convection this evening will become focused south of the MA Pike and gradually move offshore through midnight although could linger a bit longer over the Cape/Islands. Otherwise, drying conditions behind the cold front overnight as winds shift to NW bringing a dewpoint drop into the 50s interior and low 60s near the south coast. Lows will range from the upper 50s western MA and low-mid 60s eastern MA.
SHORT TERM /6 AM MONDAY MORNING THROUGH MONDAY NIGHT/
Monday...
Sharp mid level trough with cold pool will be moving across the region with 500 mb temps dropping to -16 to -18C. This cold pool combined with daytime heating will result in BKN CU developing along with widely scattered showers, mainly east of the CT valley and especially across eastern MA. Marginal instability develops with CAPES up to 500 J/kg so can't rule out an isolated t-storm with small hail given cold temps aloft. Temps will be a bit below normal in post-frontal airmass with highs in the 70s and dewpoints in the 50s, to lower 60s near the coast.
Monday night...
Mid level trough moves offshore with rising heights as high pres builds in from the west. Any diurnal clouds will melt away in the evening leading to a mostly clear and somewhat cool night with light north winds. Lows will range through the 50s, except lower 60s outer Cape/Islands and Boston metro.
LONG TERM /TUESDAY THROUGH SUNDAY/
Highlights:
* Dry and warm with tolerable humidity levels for Tue and Wed.
* Turning more humid and active for Independence Day, and potentially into Fri/Sat too, with clouds, showers and storms possible. Exact timing remains uncertain.
30/00Z guidance suite was in rather good agreement with the overall synoptic pattern. Broad mid level ridging to start out this portion of the forecast is expected to transition to broad troughing towards next weekend. At the surface, a large high pressure should be over southern New England Tuesday into Wednesday. This high pressure should be far enough offshore to permit a cold front to approach from the west on Independence Day, but it is a little complicated.
The offshore high pressure may not permit this front to make it all the way into, or through, our region before being driven back north.
Dry weather with near to slightly above normal temperatures Tuesday and Wednesday. Increasing risk for some showers and isolated thunderstorms Wednesday night into Thursday. Also expecting increased humidity with above normal temperatures Thursday into Saturday. The timing and coverage of these showers and thunderstorms remains the most uncertain aspect of this forecast. With many outdoor plans for the holiday, it would be best to monitor the forecast over the coming days.
This uncertainty lingers late this week. As such, stayed close the NationalBlend solution for now, as it is ensemble-based. This meant a broad chance for showers and thunderstorms Friday into Saturday, but am not expecting it to be raining this entire time.
AVIATION /00Z MONDAY THROUGH FRIDAY/
Forecast Confidence Levels:
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Tonight...Moderate confidence.
Showers and t-storms especially south of the MA Pike will end from N to S through midnight. VFR interior with partial clearing overnight. IFR-LIFR south coast and Cape/Islands improving to VFR after midnight but lower cigs lingering at ACK. Wind shift to NW 00-06z from W to E.
Monday...High confidence.
VFR cigs 4-6k ft developing with scattered showers developing late morning through the afternoon, especially eastern MA. Can't rule out an isolated t-storm with small hail. N wind gusts to 20 kt.
Monday night...High confidence.
VFR with diminishing wind.
KBOS TAF...Moderate confidence in TAF.
Expect a few t-storms developing 20-00z with brief lower conditions and potential for strong wind gusts. Included a TEMPO group to highlight this potential. Otherwise VFR. SW winds shift to W this evening then NW overnight.
KBDL TAF...Moderate confidence in TAF.
One cluster of t-storms moving to the E but expect additional showers and storms into early evening. VFR but brief lower conditions and strong wind gusts in any storms. Wind shift to NW around 00z.
Outlook /Tuesday through Friday/...
Tuesday through Tuesday Night: VFR.
Wednesday: VFR. Breezy.
Wednesday Night: VFR. Breezy. Slight chance SHRA.
Independence Day: Mainly VFR, with local MVFR possible. Breezy.
Slight chance SHRA.
Thursday Night: VFR. Breezy. Slight chance SHRA.
Friday: Chance SHRA.
MARINE
Forecaster Confidence Levels:
Low - less than 30 percent.
Medium - 30 to 60 percent.
High - greater than 60 percent.
Tonight through Monday night...High confidence.
Gusty S-SW winds to 25 kt will be diminishing this evening as modest low level jet moves offshore. Winds shift to NW overnight then N during Monday with gusts to 20 kt. Diminishing N winds Mon night. Showers and t-storms through this evening, moving offshore from the south coastal waters late tonight.
Outlook /Tuesday through Friday/...
Tuesday through Wednesday: Winds less than 25 kt.
Wednesday Night: Winds less than 25 kt. Slight chance of rain showers.
Independence Day through Thursday Night: Winds less than 25 kt.
Seas locally approaching 5 ft. Slight chance of rain showers.
Friday: Winds less than 25 kt. Seas locally approaching 5 ft.
Chance of rain showers.
BOX WATCHES/WARNINGS/ADVISORIES
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 8 PM EDT this evening for ANZ231- 250.
Small Craft Advisory until 11 PM EDT this evening for ANZ232>235-237.
Small Craft Advisory until 6 AM EDT Monday for ANZ254>256.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| 44029 - Buoy A0102 - Mass. Bay/Stellwagen | 8 mi | 135 min | SW 7.8G | 65°F | 60°F | 2 ft | 29.77 | |
| 44013 - BOSTON 16 NM East of Boston, MA | 18 mi | 79 min | SSW 9.7G | 66°F | 62°F | 2 ft | 29.81 | 66°F |
| IOSN3 - Isle of Shoals, NH | 25 mi | 79 min | SW 23G | 78°F | 29.74 | 72°F | ||
| BHBM3 - 8443970 - Boston, MA | 27 mi | 91 min | 75°F | 29.79 | ||||
| 44073 | 29 mi | 154 min | SSW 12G | 67°F | 56°F | |||
| 44098 - Jeffrey's Ledge, NH (160) | 29 mi | 83 min | 58°F | 3 ft | ||||
| BGXN3 - Great Bay Reserve, NH | 32 mi | 94 min | WSW 5.1 | 81°F | 29.77 | 74°F | ||
| SEIM1 | 33 mi | 91 min | 76°F | 51°F | 29.77 | 73°F | ||
| 44018 - SE Cape Cod 30NM East of Nantucket, MA | 39 mi | 99 min | 58°F | 3 ft | ||||
| 44030 - Buoy B0102 - Western Maine Shelf | 41 mi | 135 min | SW 14G | 64°F | 55°F | 3 ft | 29.72 |
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Wind History graph: BVY
(wind in knots)Tide / Current for Gloucester Harbor (Ten Pound Island), Massachusetts
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Gloucester Harbor (Ten Pound Island)
Click for Map
Sun -- 12:30 AM EDT 0.17 feet Low Tide
Sun -- 01:00 AM EDT Moonrise
Sun -- 05:08 AM EDT Sunrise
Sun -- 06:43 AM EDT 8.72 feet High Tide
Sun -- 12:49 PM EDT 0.18 feet Low Tide
Sun -- 03:05 PM EDT Moonset
Sun -- 07:12 PM EDT 9.63 feet High Tide
Sun -- 08:24 PM EDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sun -- 12:30 AM EDT 0.17 feet Low Tide
Sun -- 01:00 AM EDT Moonrise
Sun -- 05:08 AM EDT Sunrise
Sun -- 06:43 AM EDT 8.72 feet High Tide
Sun -- 12:49 PM EDT 0.18 feet Low Tide
Sun -- 03:05 PM EDT Moonset
Sun -- 07:12 PM EDT 9.63 feet High Tide
Sun -- 08:24 PM EDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Gloucester Harbor (Ten Pound Island), Massachusetts, Tide feet
| 12 am |
| 0.4 |
| 1 am |
| 0.3 |
| 2 am |
| 1.5 |
| 3 am |
| 3.2 |
| 4 am |
| 5.1 |
| 5 am |
| 7.1 |
| 6 am |
| 8.4 |
| 7 am |
| 8.7 |
| 8 am |
| 7.9 |
| 9 am |
| 6.3 |
| 10 am |
| 4.3 |
| 11 am |
| 2.3 |
| 12 pm |
| 0.7 |
| 1 pm |
| 0.2 |
| 2 pm |
| 1.1 |
| 3 pm |
| 2.8 |
| 4 pm |
| 4.8 |
| 5 pm |
| 7 |
| 6 pm |
| 8.8 |
| 7 pm |
| 9.6 |
| 8 pm |
| 9.3 |
| 9 pm |
| 8 |
| 10 pm |
| 6 |
| 11 pm |
| 3.8 |
Marblehead Channel
Click for Map
Sun -- 01:01 AM EDT Moonrise
Sun -- 01:40 AM EDT 0.00 knots Slack
Sun -- 04:33 AM EDT 0.37 knots Max Flood
Sun -- 05:09 AM EDT Sunrise
Sun -- 07:31 AM EDT -0.00 knots Slack
Sun -- 11:38 AM EDT -0.34 knots Max Ebb
Sun -- 02:01 PM EDT 0.00 knots Slack
Sun -- 03:05 PM EDT Moonset
Sun -- 05:02 PM EDT 0.40 knots Max Flood
Sun -- 08:02 PM EDT -0.00 knots Slack
Sun -- 08:24 PM EDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sun -- 01:01 AM EDT Moonrise
Sun -- 01:40 AM EDT 0.00 knots Slack
Sun -- 04:33 AM EDT 0.37 knots Max Flood
Sun -- 05:09 AM EDT Sunrise
Sun -- 07:31 AM EDT -0.00 knots Slack
Sun -- 11:38 AM EDT -0.34 knots Max Ebb
Sun -- 02:01 PM EDT 0.00 knots Slack
Sun -- 03:05 PM EDT Moonset
Sun -- 05:02 PM EDT 0.40 knots Max Flood
Sun -- 08:02 PM EDT -0.00 knots Slack
Sun -- 08:24 PM EDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Marblehead Channel, Massachusetts Current, knots
| 12 am |
| -0.3 |
| 1 am |
| -0.2 |
| 2 am |
| 0.1 |
| 3 am |
| 0.3 |
| 4 am |
| 0.4 |
| 5 am |
| 0.4 |
| 6 am |
| 0.3 |
| 7 am |
| 0.1 |
| 8 am |
| -0.1 |
| 9 am |
| -0.2 |
| 10 am |
| -0.3 |
| 11 am |
| -0.3 |
| 12 pm |
| -0.3 |
| 1 pm |
| -0.3 |
| 2 pm |
| -0 |
| 3 pm |
| 0.3 |
| 4 pm |
| 0.4 |
| 5 pm |
| 0.4 |
| 6 pm |
| 0.4 |
| 7 pm |
| 0.2 |
| 8 pm |
| 0 |
| 9 pm |
| -0.2 |
| 10 pm |
| -0.3 |
| 11 pm |
| -0.3 |
Boston, MA,
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