Marine Weather and Tide Forecast for Atlantic City, NJ
May 21, 2024 3:19 PM EDT (19:19 UTC) Change Location
 | Sunrise 5:36 AM Sunset 8:11 PM Moonrise 6:35 PM Moonset 4:17 AM |
ANZ452 Coastal Waters From Little Egg Inlet To Great Egg Inlet Nj Out 20 Nm- 102 Pm Edt Tue May 21 2024
This afternoon - S winds 10 to 15 kt. Seas around 3 ft. Wave detail: E 3 ft at 8 seconds. Patchy fog early, then areas of fog late. Vsby 1 to 3 nm.
Tonight - SW winds 10 to 15 kt. Seas around 3 ft. Wave detail: E 3 ft at 9 seconds and S 2 ft at 3 seconds. Areas of fog. Vsby 1 to 3 nm.
Wed - S winds 10 to 15 kt. Seas 2 to 3 ft. Wave detail: E 3 ft at 9 seconds and sw 2 ft at 3 seconds. Areas of fog in the morning with vsby 1 to 3 nm.
Wed night - S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave detail: S 3 ft at 4 seconds and E 2 ft at 8 seconds.
Thu - S winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Wave detail: S 3 ft at 4 seconds and se 2 ft at 9 seconds.
Thu night - SW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave detail: S 3 ft at 5 seconds and E 1 foot at 7 seconds. Showers likely with a chance of tstms.
Fri - W winds 5 to 10 kt, becoming sw in the afternoon. Seas 2 to 3 ft. A chance of showers in the morning.
Fri night - SW winds 5 to 10 kt. Seas around 2 ft. A chance of showers.
Sat - S winds 5 to 10 kt. Seas around 2 ft. A chance of showers.
Sat night - S winds around 10 kt, becoming W after midnight. Seas around 2 ft. A chance of showers.
winds and seas higher in and near tstms.
winds and seas higher in and near tstms.
ANZ400 102 Pm Edt Tue May 21 2024
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay - High pressure shifts to the south today then out to sea Wednesday. A cold front will approach the area Wednesday night, before slowly moving across the area on Thursday, then stalls to our south through the weekend. SEveral waves of low pressure and may develop and move along this boundary over the weekend into early next week, bringing unsettled weather to the area.
Area Discussion for - Philadelphia/Mount Holly, PA
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FXUS61 KPHI 211906 AFDPHI
Area Forecast Discussion National Weather Service Mount Holly NJ 306 PM EDT Tue May 21 2024
SYNOPSIS
High pressure will remain centered to our south and east through Wednesday. A cold front crosses our area Thursday afternoon, then stalls to our south Friday before lifting back northward some Friday night into Saturday. A cold front moves through Saturday night into Sunday, then a couple of systems move through Monday and Tuesday.
NEAR TERM /THROUGH WEDNESDAY/
High pressure located offshore the Delmarva will remain in place through tonight. This has allowed a quiet, dry, and warm day to occur this afternoon across the area. Skies are mostly clear with some fair weather cumulus present on satellite imagery. Temps are mostly in the low to mid 80s with cooler temps near the coast as a seabreeze boundary slowly makes its way inland.
Another tranquil night is in store tonight with clear skies and light winds. With light south-southwest winds around 5 mph tonight, this should limit any widespread fog formation in comparison to this morning. Hi-res guidance suggests that there may be some marine fog that pushes inland early Wednesday morning, but overall this looks pretty patchy and confined along the immediate New Jersey and Delaware coasts. Lows tonight will be in the mid 50s to low 60s.
Heading into Wednesday, any morning fog should burn off rather quickly after day break becoming clear. High pressure offshore will begin to move further out to sea, losing its grasp of control on the weather across the area. By the afternoon, a pre-frontal trough will be making its way across central Pennsylvania late in the day which may spark up a few showers and thunderstorms. MLCAPE values will be in excess of 1000 J/kg with modest instability due to diurnal heating as surface dewpoints will be in the mid 60s. However, the limiting factor will be that the greatest forcing will be displaced well to the north and west of the area. With this in mind, it is likely any thunderstorm development will take place well to our west, but may begin to move into and approach our northwestern counties late in the day. This is depicted well by some of the CAMs and as a result the Storm Prediction Center has outlined a Marginal Risk of severe weather (Level 1/5) on a line from Reading to Allentown to Mount Pocono for Wednesday.
SHORT TERM /WEDNESDAY NIGHT THROUGH FRIDAY NIGHT/
A closed low is forecast to be tracking just north of the Great Lakes Wednesday night into Thursday. Areas of convection are expected to be ongoing to our west with a cold front, and some of this should reach into at least our western and northern zones during the first half of Wednesday night. The intensity of the storms should be on the decrease with an eastward extent as the boundary layer starts to stabilize, however a stronger storm could get into our far western zones before weakening some.
As the closed low remains in Canada Thursday, surface low pressure tied to it tracks well to our north. An associated cold front however will move across our area Thursday afternoon or Thursday night. Prior to the cold front arriving, a pre-frontal trough may become established nearby during peak heating Thursday afternoon.
While the main forcing is removed from our area given the main trough aloft is so far to our north, a band of stronger southwesterly flow in the mid to upper levels is forecast to mostly glance our region during the day Thursday. The model guidance shows ample instability with some increase in shear due to the strengthening mid to upper level southwesterly flow. The model forecast soundings show an inverted-V profile in the lower levels given ample heating of the boundary layer. This could however be disrupted some if some convection can initiate by late morning.
Despite the weaker forcing, a broken band of convection or some convective clusters may accompany the pre-frontal trough Thursday afternoon. Given the forecast environment, there is the potential for some locally severe thunderstorms with damaging winds the main hazard especially if storms become clustered or in a line segment.
Given the weaker forcing, convective coverage could end up somewhat more limited. The convection should be weakening or moving offshore Thursday night as the cold front moves through.
High temperatures Thursday are forecast to be in the 80s for much of the area (coolest along the coast and higher elevations of the Poconos). Dew points are forecast to be in the mid to upper 60s ahead of the cold front, therefore a humid day Thursday.
As we go through Friday, an upper-level trough glances our region to the north and surface low pressure is well to our north. An associated cold front however should be stalling to our south. There is little in the way of cold air advection, and while temperatures will be a little cooler compared to Thursday they are forecast to be above average. The flow looks light and therefore a sea breeze should develop and thus keep it cooler along the coast. As the next system moves toward the Ohio Valley, the front may start to shift back northward Friday night aided by some warm air advection within south to southwesterly flow.
LONG TERM /SATURDAY THROUGH TUESDAY/
Summary...Unsettled at times for the holiday weekend.
Synoptic Overview...A weak shortwave trough looks to slide by Saturday into Sunday. Another upper-level trough may lift across the Great Lakes and adjacent Canada Sunday into Monday, with another one sliding across the Plains to the mid-Mississippi Valley into Tuesday. At the surface, a front is forecast to lift northward some into Saturday before a cold front moves through Saturday night into Sunday. Some additional impulses of energy track across or nearby early next week.
For Saturday...A front initially to our south may lift back northward some as a shortwave trough slides across with weak low pressure. Some of the guidance has shifting northward with the track of the surface low, which would pull the front farther northward.
The low-level flow is now forecast to be more southeast to south, and this will still result in some cooling especially for the coastal areas. Some showers and perhaps thunder should move through as a weak shortwave trough arrives followed by a cold front at night.
For Sunday through Tuesday...As the aforementioned shortwave trough departs to the east to start Sunday and a trough remains across portions of eastern Canada, weak surface high pressure builds in as a cold front is offshore. This may be enough to result in dry weather for Sunday. The next upper-level trough in the Plains should eject energy northeastward, with weak low pressure making a run at our area Sunday night and Monday. The combination of synoptic lift and moisture should result in some showers occurring on Memorial Day. Depending on the location of the warm sector, thunder cannot be ruled out however this is much less certain this far out in time. An associated cold front should be east of our coast to start Tuesday, however at least some guidance shows some trailing energy in the Tennessee Valley. This could get some showers into parts of our area Tuesday, however it is possible this system is slower or tracks farther south. Given the uncertainty, kept PoPs no higher than the chance range.
AVIATION /19Z TUESDAY THROUGH SUNDAY/
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas...
Rest of Today...VFR with a few cumulus clouds. South-southwest winds around 5-10 kt. High confidence.
Tonight...VFR with clear skies. A few low clouds and patchy fog will be possible at KACY/KMIV, although not expecting any significant restrictions. South-southwest winds around 5 kt or less. Moderate confidence.
Wednesday...VFR expected with increasing high clouds during the afternoon. Slight chance of a late day thunderstorm at KRDG/KABE.
South-southwest winds around 10-15 kt. High confidence.
Outlook...
Wednesday night and Thursday...Sub-VFR conditions possible at times with some showers and thunderstorms possible, mostly north and west of KPHL Wednesday night then all areas Thursday afternoon and evening.
Friday...VFR overall.
Saturday...A period of sub-VFR conditions and some showers possible.
Sunday...Mostly VFR.
MARINE
No marine headlines are in effect through Wednesday. South-southwest winds around 10-15 kt with occasional gusts up to 20 kt possible.
Seas around 3-4 feet. Patchy dense fog will be possible tonight into early Wednesday morning.
Outlook...
Wednesday night through Sunday...The conditions are expected to be below Small Craft Advisory criteria.
Rip Currents...
Rest of today, south to southeast winds 5-15 mph while waves offshore will be 3-4 feet with an 8 second swell. Also, there is a full moon on Thursday. This will all contribute to a MODERATE risk for the development of dangerous rip currents for the beaches both Delaware and New Jersey.
Similar conditions will continue Wednesday, with slightly stronger winds. As a result, there will continue to be a MODERATE risk for the development of dangerous rip currents at the New Jersey and Delaware beaches.
PHI WATCHES/WARNINGS/ADVISORIES
PA...None.
NJ...None.
DE...None.
MD...None.
MARINE...None.
Area Forecast Discussion National Weather Service Mount Holly NJ 306 PM EDT Tue May 21 2024
SYNOPSIS
High pressure will remain centered to our south and east through Wednesday. A cold front crosses our area Thursday afternoon, then stalls to our south Friday before lifting back northward some Friday night into Saturday. A cold front moves through Saturday night into Sunday, then a couple of systems move through Monday and Tuesday.
NEAR TERM /THROUGH WEDNESDAY/
High pressure located offshore the Delmarva will remain in place through tonight. This has allowed a quiet, dry, and warm day to occur this afternoon across the area. Skies are mostly clear with some fair weather cumulus present on satellite imagery. Temps are mostly in the low to mid 80s with cooler temps near the coast as a seabreeze boundary slowly makes its way inland.
Another tranquil night is in store tonight with clear skies and light winds. With light south-southwest winds around 5 mph tonight, this should limit any widespread fog formation in comparison to this morning. Hi-res guidance suggests that there may be some marine fog that pushes inland early Wednesday morning, but overall this looks pretty patchy and confined along the immediate New Jersey and Delaware coasts. Lows tonight will be in the mid 50s to low 60s.
Heading into Wednesday, any morning fog should burn off rather quickly after day break becoming clear. High pressure offshore will begin to move further out to sea, losing its grasp of control on the weather across the area. By the afternoon, a pre-frontal trough will be making its way across central Pennsylvania late in the day which may spark up a few showers and thunderstorms. MLCAPE values will be in excess of 1000 J/kg with modest instability due to diurnal heating as surface dewpoints will be in the mid 60s. However, the limiting factor will be that the greatest forcing will be displaced well to the north and west of the area. With this in mind, it is likely any thunderstorm development will take place well to our west, but may begin to move into and approach our northwestern counties late in the day. This is depicted well by some of the CAMs and as a result the Storm Prediction Center has outlined a Marginal Risk of severe weather (Level 1/5) on a line from Reading to Allentown to Mount Pocono for Wednesday.
SHORT TERM /WEDNESDAY NIGHT THROUGH FRIDAY NIGHT/
A closed low is forecast to be tracking just north of the Great Lakes Wednesday night into Thursday. Areas of convection are expected to be ongoing to our west with a cold front, and some of this should reach into at least our western and northern zones during the first half of Wednesday night. The intensity of the storms should be on the decrease with an eastward extent as the boundary layer starts to stabilize, however a stronger storm could get into our far western zones before weakening some.
As the closed low remains in Canada Thursday, surface low pressure tied to it tracks well to our north. An associated cold front however will move across our area Thursday afternoon or Thursday night. Prior to the cold front arriving, a pre-frontal trough may become established nearby during peak heating Thursday afternoon.
While the main forcing is removed from our area given the main trough aloft is so far to our north, a band of stronger southwesterly flow in the mid to upper levels is forecast to mostly glance our region during the day Thursday. The model guidance shows ample instability with some increase in shear due to the strengthening mid to upper level southwesterly flow. The model forecast soundings show an inverted-V profile in the lower levels given ample heating of the boundary layer. This could however be disrupted some if some convection can initiate by late morning.
Despite the weaker forcing, a broken band of convection or some convective clusters may accompany the pre-frontal trough Thursday afternoon. Given the forecast environment, there is the potential for some locally severe thunderstorms with damaging winds the main hazard especially if storms become clustered or in a line segment.
Given the weaker forcing, convective coverage could end up somewhat more limited. The convection should be weakening or moving offshore Thursday night as the cold front moves through.
High temperatures Thursday are forecast to be in the 80s for much of the area (coolest along the coast and higher elevations of the Poconos). Dew points are forecast to be in the mid to upper 60s ahead of the cold front, therefore a humid day Thursday.
As we go through Friday, an upper-level trough glances our region to the north and surface low pressure is well to our north. An associated cold front however should be stalling to our south. There is little in the way of cold air advection, and while temperatures will be a little cooler compared to Thursday they are forecast to be above average. The flow looks light and therefore a sea breeze should develop and thus keep it cooler along the coast. As the next system moves toward the Ohio Valley, the front may start to shift back northward Friday night aided by some warm air advection within south to southwesterly flow.
LONG TERM /SATURDAY THROUGH TUESDAY/
Summary...Unsettled at times for the holiday weekend.
Synoptic Overview...A weak shortwave trough looks to slide by Saturday into Sunday. Another upper-level trough may lift across the Great Lakes and adjacent Canada Sunday into Monday, with another one sliding across the Plains to the mid-Mississippi Valley into Tuesday. At the surface, a front is forecast to lift northward some into Saturday before a cold front moves through Saturday night into Sunday. Some additional impulses of energy track across or nearby early next week.
For Saturday...A front initially to our south may lift back northward some as a shortwave trough slides across with weak low pressure. Some of the guidance has shifting northward with the track of the surface low, which would pull the front farther northward.
The low-level flow is now forecast to be more southeast to south, and this will still result in some cooling especially for the coastal areas. Some showers and perhaps thunder should move through as a weak shortwave trough arrives followed by a cold front at night.
For Sunday through Tuesday...As the aforementioned shortwave trough departs to the east to start Sunday and a trough remains across portions of eastern Canada, weak surface high pressure builds in as a cold front is offshore. This may be enough to result in dry weather for Sunday. The next upper-level trough in the Plains should eject energy northeastward, with weak low pressure making a run at our area Sunday night and Monday. The combination of synoptic lift and moisture should result in some showers occurring on Memorial Day. Depending on the location of the warm sector, thunder cannot be ruled out however this is much less certain this far out in time. An associated cold front should be east of our coast to start Tuesday, however at least some guidance shows some trailing energy in the Tennessee Valley. This could get some showers into parts of our area Tuesday, however it is possible this system is slower or tracks farther south. Given the uncertainty, kept PoPs no higher than the chance range.
AVIATION /19Z TUESDAY THROUGH SUNDAY/
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas...
Rest of Today...VFR with a few cumulus clouds. South-southwest winds around 5-10 kt. High confidence.
Tonight...VFR with clear skies. A few low clouds and patchy fog will be possible at KACY/KMIV, although not expecting any significant restrictions. South-southwest winds around 5 kt or less. Moderate confidence.
Wednesday...VFR expected with increasing high clouds during the afternoon. Slight chance of a late day thunderstorm at KRDG/KABE.
South-southwest winds around 10-15 kt. High confidence.
Outlook...
Wednesday night and Thursday...Sub-VFR conditions possible at times with some showers and thunderstorms possible, mostly north and west of KPHL Wednesday night then all areas Thursday afternoon and evening.
Friday...VFR overall.
Saturday...A period of sub-VFR conditions and some showers possible.
Sunday...Mostly VFR.
MARINE
No marine headlines are in effect through Wednesday. South-southwest winds around 10-15 kt with occasional gusts up to 20 kt possible.
Seas around 3-4 feet. Patchy dense fog will be possible tonight into early Wednesday morning.
Outlook...
Wednesday night through Sunday...The conditions are expected to be below Small Craft Advisory criteria.
Rip Currents...
Rest of today, south to southeast winds 5-15 mph while waves offshore will be 3-4 feet with an 8 second swell. Also, there is a full moon on Thursday. This will all contribute to a MODERATE risk for the development of dangerous rip currents for the beaches both Delaware and New Jersey.
Similar conditions will continue Wednesday, with slightly stronger winds. As a result, there will continue to be a MODERATE risk for the development of dangerous rip currents at the New Jersey and Delaware beaches.
PHI WATCHES/WARNINGS/ADVISORIES
PA...None.
NJ...None.
DE...None.
MD...None.
MARINE...None.
| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | inHg | DewPt |
| ACYN4 - 8534720 - Atlantic City, NJ | 2 mi | 49 min | 60°F | 61°F | 29.97 | |||
| JCRN4 - Jacques Cousteau Reserve, NJ | 10 mi | 49 min | SSE 9.9 | 79°F | 30.04 | 65°F | ||
| CMAN4 - 8536110 - Cape May, NJ | 40 mi | 49 min | ESE 7G | 67°F | 64°F | 30.02 | ||
| 44091 | 44 mi | 53 min | 58°F | 4 ft | ||||
| BRND1 - 8555889 - Brandywine Shoal Light, DE | 46 mi | 49 min | SSE 12G | 62°F | 30.02 |
toggle option: (graph/table)
| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Temp | DewPt | RH | inHg |
| KACY ATLANTIC CITY INTL,NJ | 9 sm | 25 min | S 10G17 | 10 sm | Clear | 79°F | 61°F | 54% | 29.98 |
Tide / Current for Absecon Channel, State Route 87 bridge, New Jersey
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Absecon Channel
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Tue -- 01:04 AM EDT 0.38 feet Low Tide
Tue -- 04:17 AM EDT Moonset
Tue -- 05:38 AM EDT Sunrise
Tue -- 07:20 AM EDT 3.68 feet High Tide
Tue -- 01:05 PM EDT 0.40 feet Low Tide
Tue -- 06:35 PM EDT Moonrise
Tue -- 07:42 PM EDT 4.56 feet High Tide
Tue -- 08:10 PM EDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Tue -- 01:04 AM EDT 0.38 feet Low Tide
Tue -- 04:17 AM EDT Moonset
Tue -- 05:38 AM EDT Sunrise
Tue -- 07:20 AM EDT 3.68 feet High Tide
Tue -- 01:05 PM EDT 0.40 feet Low Tide
Tue -- 06:35 PM EDT Moonrise
Tue -- 07:42 PM EDT 4.56 feet High Tide
Tue -- 08:10 PM EDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Absecon Channel, State Route 87 bridge, New Jersey, Tide feet
| 12 am |
| 0.7 |
| 1 am |
| 0.4 |
| 2 am |
| 0.6 |
| 3 am |
| 1.2 |
| 4 am |
| 2 |
| 5 am |
| 2.8 |
| 6 am |
| 3.3 |
| 7 am |
| 3.7 |
| 8 am |
| 3.6 |
| 9 am |
| 3 |
| 10 am |
| 2.1 |
| 11 am |
| 1.3 |
| 12 pm |
| 0.7 |
| 1 pm |
| 0.4 |
| 2 pm |
| 0.6 |
| 3 pm |
| 1.3 |
| 4 pm |
| 2.3 |
| 5 pm |
| 3.2 |
| 6 pm |
| 4 |
| 7 pm |
| 4.4 |
| 8 pm |
| 4.5 |
| 9 pm |
| 4 |
| 10 pm |
| 3.1 |
| 11 pm |
| 2.1 |
Dock Thorofare
Click for Map
Tue -- 01:37 AM EDT 0.39 feet Low Tide
Tue -- 04:17 AM EDT Moonset
Tue -- 05:39 AM EDT Sunrise
Tue -- 07:35 AM EDT 3.77 feet High Tide
Tue -- 01:38 PM EDT 0.41 feet Low Tide
Tue -- 06:35 PM EDT Moonrise
Tue -- 07:57 PM EDT 4.67 feet High Tide
Tue -- 08:10 PM EDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Tue -- 01:37 AM EDT 0.39 feet Low Tide
Tue -- 04:17 AM EDT Moonset
Tue -- 05:39 AM EDT Sunrise
Tue -- 07:35 AM EDT 3.77 feet High Tide
Tue -- 01:38 PM EDT 0.41 feet Low Tide
Tue -- 06:35 PM EDT Moonrise
Tue -- 07:57 PM EDT 4.67 feet High Tide
Tue -- 08:10 PM EDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Dock Thorofare, Risley Channel, New Jersey, Tide feet
| 12 am |
| 1.1 |
| 1 am |
| 0.5 |
| 2 am |
| 0.4 |
| 3 am |
| 0.9 |
| 4 am |
| 1.7 |
| 5 am |
| 2.6 |
| 6 am |
| 3.3 |
| 7 am |
| 3.7 |
| 8 am |
| 3.7 |
| 9 am |
| 3.3 |
| 10 am |
| 2.5 |
| 11 am |
| 1.7 |
| 12 pm |
| 1 |
| 1 pm |
| 0.5 |
| 2 pm |
| 0.4 |
| 3 pm |
| 0.9 |
| 4 pm |
| 1.9 |
| 5 pm |
| 2.9 |
| 6 pm |
| 3.8 |
| 7 pm |
| 4.4 |
| 8 pm |
| 4.7 |
| 9 pm |
| 4.4 |
| 10 pm |
| 3.5 |
| 11 pm |
| 2.5 |
Philadelphia, PA,
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