Marine Weather and Tide Forecast for Castine, ME
May 8, 2024 2:15 PM EDT (18:15 UTC) Change Location
 | Sunrise 5:12 AM Sunset 7:50 PM Moonrise 5:14 AM Moonset 9:00 PM |
ANZ151 Penobscot Bay- 1040 Am Edt Wed May 8 2024
Today - NE winds 5 to 10 kt with gusts up to 20 kt, becoming E 10 to 15 kt with gusts up to 25 kt this afternoon. Seas around 2 ft. Wave detail: S 2 ft at 7 seconds. Showers likely this afternoon with vsby 1 to 3 nm.
Tonight - E winds 5 to 10 kt with gusts up to 25 kt, becoming N after midnight. Seas around 2 ft. Wave detail: S 2 ft at 7 seconds. Showers likely, mainly in the evening. Patchy fog after midnight. Vsby 1 to 3 nm.
Thu - N winds 5 to 10 kt. Seas around 2 ft. Patchy fog in the morning. A chance of showers in the afternoon. Vsby 1 to 3 nm in the morning.
Thu night - NE winds 5 to 10 kt. Seas around 2 ft. A chance of showers in the evening.
Fri - NE winds around 10 kt with gusts up to 20 kt. Seas around 2 ft.
Fri night - NE winds 5 to 10 kt. Seas around 2 ft.
Sat - NE winds 5 to 10 kt. Seas 2 to 3 ft.
Sat night - NW winds around 5 kt. Seas 2 to 3 ft.
Sun - E winds around 5 kt, becoming S in the afternoon. Seas around 2 ft.
Sun night - S winds 5 to 10 kt, becoming W after midnight. Seas around 2 ft. A chance of showers after midnight.
ANZ100 1040 Am Edt Wed May 8 2024
Synopsis for stonington me to merrimack river ma out to 25 nm high pressure will shift to the south and east of the waters early today as low pressure approaches from the west additional waves of low pressure will cross through the waters from Thursday into the upcoming weekend with small craft advisory conditions possible Thursday night and Friday.
Area Discussion for - Gray/Portland, ME
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FXUS61 KGYX 081446 AFDGYX
Area Forecast Discussion National Weather Service Gray ME 1046 AM EDT Wed May 8 2024
SYNOPSIS
Several cool and unsettled days are in store as a warm front remains south of most of our forecast area. Widespread showers overspread the region today with some thunder. Another system follows for the end of the week, bringing more showers into the forecast. The unsettled, showery pattern may continue through the weekend and possibly into early next week.
NEAR TERM /UNTIL 6 PM THIS EVENING/
1040 AM...Quick update that better times the POPs today, and adjusted temps on bit to have them start to go down this afternoon in areas between the mtns and the Gulf of ME as the onshore flow improves somewhat. Also, remove thru thunder for the rest of the morning, but reintroduce with next round of showers later this afternoon, best chance will be in S NH.
605 AM Update...No changes at this time other to add a little more sun to eastern zones for a few more hours before clouds roll in. Showers with a few thunderstorms will reach the CT River in NH between 730 and 830 AM.
Previously...
Our two day stretch of warm and sunny weather is coming to an end today as a short wave trough approaches from the west and an attendant SFC warm from remains largely to our south. This will mean temperatures a good 15 to 20 degrees colder today.
Forcing for ascent will increase this morning across the western zones then quickly overspread the rest of the forecast area during the latter morning and early afternoon hours.
Despite cool SFC temperatures, relatively steep lapse rates aloft will aid in at least a few hundred J/KG of elevated CAPE.
This should be enough for at least isolated thunder and a few heavy downpours as the showers arrive from the west this morning, mainly across western and southern NH. Elevated instability should remain much of the day across the southern half of the forecast area, offering showers with a few rumbles of thunder from time to time. With that said we do not expect rain all day, in fact several hours during the afternoon could be dry unless the drizzle machine gets going.
Another short wave trough arrives to bring another concentrated area of showers later on this afternoon and evening. These could contain some thunder as well. Across the far south, mainly southwestern NH, a storm or two could be on the strong side depending on how much instability is able to develop near (likely just north) of the SFC warm front. Small hail will be possible, maybe with a brief instance of strong SFC convective winds depending on how low level lapse rates pan out. Non-zero chance of a brief weak tornado there if a sustained cell can develop with surface or near-surface based instability. Again, this would most likely be southwestern NH if at all.
SHORT TERM /6 PM THIS EVENING THROUGH 6 PM THURSDAY/
Showers linger into this evening but should see some drying after midnight, as we move to the back side of the low. Could also be fog and drizzle. Lows will be mainly in the 40s.
Moist low level onshore flow continues Thursday with colder than normal temperatures and lots of clouds. Forcing for ascent really isn't that great so a lot of the day should be dry other than some fog and drizzle at times, mainly on the coast.
LONG TERM /THURSDAY NIGHT THROUGH TUESDAY/
Overview: Low pressure will swing out of the Ohio Valley and towards the Northeast Thursday night into Friday. This low remains through Friday night, before phasing with another area of low pressure passing off the East Coast. Broad cyclonic circulation will keep unsettled conditions in the region for the remainder of the weekend and early next week.
Details: Guidance has trended further south with moisture associated with incoming low pressure Friday. The important note will be where this low stalls as it transits from the Ohio Valley to the Northeast. High pressure to the north will keep the column from becoming fully saturated across the area, with most of the shower activity confined to southern NH. Can't rule out some isolated showers overnight into early Saturday considering its proximity, and eventual phasing with low pressure moving NE off the East Coast.
QPF remains on the light side, and have undercut NBM QPF in favor of some of the more recent deterministic runs which show the low's center further to the south and west Fri/Fri night.
Kept with the trend of cooler interior temperatures Friday, but think some cloud cover may develop breaks towards the ME Midcoast and interior. Kept temps pushing into the upper 50s here, with 60 possible the further NE from precip in southern NH.
These warm temperatures should be more widespread on Saturday as wave broadens and merges with low pressure moving up the coast.
This is just offshore enough to keep chances of widespread rainfall low, but will still likely keep skies cloudy for a bulk of the weekend.
Southerly flow returns into early next week, and this should allow more persistent WAA to push temperatures into the 60s and perhaps lower 70s by midweek. There will be the lingering chance of showers into midweek as well. The pattern becomes more open, allowing weak forcing to combine with passing fronts and moisture to bring rain chances almost daily. At this time, confidence in timing and amounts are low, and will be focusing on narrowing those windows in the near/short term.
AVIATION /15Z WEDNESDAY THROUGH SUNDAY/
Short Term...Conditions gradually deteriorate today, as the marine later moves in from off the ocean offering low clouds.
In addition, showers with isolated thunder will move across the region this morning into the early afternoon with its own set of lower conditions. A return to VFR conditions will be possible this afternoon across southern and western NH in the wake of the showers and isolated thunderstorms. Otherwise, lots of IFR around tonight and Thursday that may improve from the north late in the day.
Long Term...MVFR ceilings possible Thursday night through the first half of the weekend. With unsettled conditions expected, this trend should continue into Sunday as well. Occasional vis restrictions will be possible in SW NH terminals as rain/showers are most widespread here Friday into Saturday.
MARINE
Short Term...A brief period of low-end SCA gusts possible midday today on the ocean waters, but otherwise, we expected conditions to largely remain below SCA thresholds today through Thursday. However, occasional showers and fog are expected over the waters.
Long Term...Conditions may approach SCA criteria Thursday night into Friday, with waves 2 to 4 ft and winds gusting to around 20 kt. This occurs as low pressure spins inland across NY state, and phases with passing low pressure off the New England waters.
Broad cyclonic flow will keep unsettled conditions over the waters for much of the weekend.
TIDES/COASTAL FLOODING
High astronomical tides combined a small of storm surge may push water levels to around minor flood stage around the times of high tide tonight and Thursday night.
GYX WATCHES/WARNINGS/ADVISORIES
ME...None.
NH...None.
MARINE...None.
Area Forecast Discussion National Weather Service Gray ME 1046 AM EDT Wed May 8 2024
SYNOPSIS
Several cool and unsettled days are in store as a warm front remains south of most of our forecast area. Widespread showers overspread the region today with some thunder. Another system follows for the end of the week, bringing more showers into the forecast. The unsettled, showery pattern may continue through the weekend and possibly into early next week.
NEAR TERM /UNTIL 6 PM THIS EVENING/
1040 AM...Quick update that better times the POPs today, and adjusted temps on bit to have them start to go down this afternoon in areas between the mtns and the Gulf of ME as the onshore flow improves somewhat. Also, remove thru thunder for the rest of the morning, but reintroduce with next round of showers later this afternoon, best chance will be in S NH.
605 AM Update...No changes at this time other to add a little more sun to eastern zones for a few more hours before clouds roll in. Showers with a few thunderstorms will reach the CT River in NH between 730 and 830 AM.
Previously...
Our two day stretch of warm and sunny weather is coming to an end today as a short wave trough approaches from the west and an attendant SFC warm from remains largely to our south. This will mean temperatures a good 15 to 20 degrees colder today.
Forcing for ascent will increase this morning across the western zones then quickly overspread the rest of the forecast area during the latter morning and early afternoon hours.
Despite cool SFC temperatures, relatively steep lapse rates aloft will aid in at least a few hundred J/KG of elevated CAPE.
This should be enough for at least isolated thunder and a few heavy downpours as the showers arrive from the west this morning, mainly across western and southern NH. Elevated instability should remain much of the day across the southern half of the forecast area, offering showers with a few rumbles of thunder from time to time. With that said we do not expect rain all day, in fact several hours during the afternoon could be dry unless the drizzle machine gets going.
Another short wave trough arrives to bring another concentrated area of showers later on this afternoon and evening. These could contain some thunder as well. Across the far south, mainly southwestern NH, a storm or two could be on the strong side depending on how much instability is able to develop near (likely just north) of the SFC warm front. Small hail will be possible, maybe with a brief instance of strong SFC convective winds depending on how low level lapse rates pan out. Non-zero chance of a brief weak tornado there if a sustained cell can develop with surface or near-surface based instability. Again, this would most likely be southwestern NH if at all.
SHORT TERM /6 PM THIS EVENING THROUGH 6 PM THURSDAY/
Showers linger into this evening but should see some drying after midnight, as we move to the back side of the low. Could also be fog and drizzle. Lows will be mainly in the 40s.
Moist low level onshore flow continues Thursday with colder than normal temperatures and lots of clouds. Forcing for ascent really isn't that great so a lot of the day should be dry other than some fog and drizzle at times, mainly on the coast.
LONG TERM /THURSDAY NIGHT THROUGH TUESDAY/
Overview: Low pressure will swing out of the Ohio Valley and towards the Northeast Thursday night into Friday. This low remains through Friday night, before phasing with another area of low pressure passing off the East Coast. Broad cyclonic circulation will keep unsettled conditions in the region for the remainder of the weekend and early next week.
Details: Guidance has trended further south with moisture associated with incoming low pressure Friday. The important note will be where this low stalls as it transits from the Ohio Valley to the Northeast. High pressure to the north will keep the column from becoming fully saturated across the area, with most of the shower activity confined to southern NH. Can't rule out some isolated showers overnight into early Saturday considering its proximity, and eventual phasing with low pressure moving NE off the East Coast.
QPF remains on the light side, and have undercut NBM QPF in favor of some of the more recent deterministic runs which show the low's center further to the south and west Fri/Fri night.
Kept with the trend of cooler interior temperatures Friday, but think some cloud cover may develop breaks towards the ME Midcoast and interior. Kept temps pushing into the upper 50s here, with 60 possible the further NE from precip in southern NH.
These warm temperatures should be more widespread on Saturday as wave broadens and merges with low pressure moving up the coast.
This is just offshore enough to keep chances of widespread rainfall low, but will still likely keep skies cloudy for a bulk of the weekend.
Southerly flow returns into early next week, and this should allow more persistent WAA to push temperatures into the 60s and perhaps lower 70s by midweek. There will be the lingering chance of showers into midweek as well. The pattern becomes more open, allowing weak forcing to combine with passing fronts and moisture to bring rain chances almost daily. At this time, confidence in timing and amounts are low, and will be focusing on narrowing those windows in the near/short term.
AVIATION /15Z WEDNESDAY THROUGH SUNDAY/
Short Term...Conditions gradually deteriorate today, as the marine later moves in from off the ocean offering low clouds.
In addition, showers with isolated thunder will move across the region this morning into the early afternoon with its own set of lower conditions. A return to VFR conditions will be possible this afternoon across southern and western NH in the wake of the showers and isolated thunderstorms. Otherwise, lots of IFR around tonight and Thursday that may improve from the north late in the day.
Long Term...MVFR ceilings possible Thursday night through the first half of the weekend. With unsettled conditions expected, this trend should continue into Sunday as well. Occasional vis restrictions will be possible in SW NH terminals as rain/showers are most widespread here Friday into Saturday.
MARINE
Short Term...A brief period of low-end SCA gusts possible midday today on the ocean waters, but otherwise, we expected conditions to largely remain below SCA thresholds today through Thursday. However, occasional showers and fog are expected over the waters.
Long Term...Conditions may approach SCA criteria Thursday night into Friday, with waves 2 to 4 ft and winds gusting to around 20 kt. This occurs as low pressure spins inland across NY state, and phases with passing low pressure off the New England waters.
Broad cyclonic flow will keep unsettled conditions over the waters for much of the weekend.
TIDES/COASTAL FLOODING
High astronomical tides combined a small of storm surge may push water levels to around minor flood stage around the times of high tide tonight and Thursday night.
GYX WATCHES/WARNINGS/ADVISORIES
ME...None.
NH...None.
MARINE...None.
| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | inHg | DewPt |
| 44033 - Buoy F0103 - West Penobscot Bay | 25 mi | 131 min | ENE 9.7G | 48°F | 45°F | 2 ft | 29.69 | |
| ATGM1 - 8413320 - Bar Harbor, ME | 32 mi | 57 min | SSE 12G | 49°F | 46°F | 29.68 | ||
| 44034 - Buoy I0103 - Eastern Maine Shelf | 42 mi | 131 min | E 14G | 45°F | 3 ft | 29.72 | ||
| MISM1 - Matinicus Rock, ME | 42 mi | 75 min | E 21G | 47°F | 29.68 | |||
| MDRM1 - Mt Desert Rock, ME | 46 mi | 75 min | ENE 20G | 46°F | 29.68 | 42°F |
toggle option: (graph/table)
| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Temp | DewPt | RH | inHg |
| KBHB HANCOCK COUNTYBAR HARBOR,ME | 24 sm | 19 min | E 09G15 | 10 sm | Overcast | 50°F | 34°F | 54% | 29.70 |
Castine
Click for Map
Wed -- 05:13 AM EDT Moonrise
Wed -- 05:15 AM EDT Sunrise
Wed -- 05:38 AM EDT -1.72 feet Low Tide
Wed -- 11:54 AM EDT 11.37 feet High Tide
Wed -- 05:48 PM EDT -0.37 feet Low Tide
Wed -- 07:48 PM EDT Sunset
Wed -- 09:00 PM EDT Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 05:13 AM EDT Moonrise
Wed -- 05:15 AM EDT Sunrise
Wed -- 05:38 AM EDT -1.72 feet Low Tide
Wed -- 11:54 AM EDT 11.37 feet High Tide
Wed -- 05:48 PM EDT -0.37 feet Low Tide
Wed -- 07:48 PM EDT Sunset
Wed -- 09:00 PM EDT Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Castine, Penobscot Bay, Maine, Tide feet
| 12 am |
| 12.3 |
| 1 am |
| 10.4 |
| 2 am |
| 7.2 |
| 3 am |
| 3.6 |
| 4 am |
| 0.5 |
| 5 am |
| -1.4 |
| 6 am |
| -1.6 |
| 7 am |
| -0.2 |
| 8 am |
| 2.5 |
| 9 am |
| 5.8 |
| 10 am |
| 8.8 |
| 11 am |
| 10.8 |
| 12 pm |
| 11.4 |
| 1 pm |
| 10.5 |
| 2 pm |
| 8.2 |
| 3 pm |
| 5.1 |
| 4 pm |
| 2.1 |
| 5 pm |
| 0.2 |
| 6 pm |
| -0.3 |
| 7 pm |
| 0.7 |
| 8 pm |
| 3.2 |
| 9 pm |
| 6.5 |
| 10 pm |
| 9.7 |
| 11 pm |
| 11.9 |
Little Deer Isle
Click for Map
Wed -- 05:13 AM EDT Moonrise
Wed -- 05:15 AM EDT Sunrise
Wed -- 05:41 AM EDT -1.71 feet Low Tide
Wed -- 11:55 AM EDT 11.27 feet High Tide
Wed -- 05:51 PM EDT -0.37 feet Low Tide
Wed -- 07:47 PM EDT Sunset
Wed -- 08:59 PM EDT Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 05:13 AM EDT Moonrise
Wed -- 05:15 AM EDT Sunrise
Wed -- 05:41 AM EDT -1.71 feet Low Tide
Wed -- 11:55 AM EDT 11.27 feet High Tide
Wed -- 05:51 PM EDT -0.37 feet Low Tide
Wed -- 07:47 PM EDT Sunset
Wed -- 08:59 PM EDT Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Little Deer Isle, Penobscot Bay, Maine, Tide feet
| 12 am |
| 12.2 |
| 1 am |
| 10.3 |
| 2 am |
| 7.3 |
| 3 am |
| 3.7 |
| 4 am |
| 0.6 |
| 5 am |
| -1.3 |
| 6 am |
| -1.6 |
| 7 am |
| -0.3 |
| 8 am |
| 2.4 |
| 9 am |
| 5.7 |
| 10 am |
| 8.7 |
| 11 am |
| 10.7 |
| 12 pm |
| 11.3 |
| 1 pm |
| 10.4 |
| 2 pm |
| 8.2 |
| 3 pm |
| 5.2 |
| 4 pm |
| 2.2 |
| 5 pm |
| 0.2 |
| 6 pm |
| -0.4 |
| 7 pm |
| 0.7 |
| 8 pm |
| 3.1 |
| 9 pm |
| 6.3 |
| 10 pm |
| 9.5 |
| 11 pm |
| 11.8 |
Portland, ME,
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