Marine Weather and Tide Forecast for Diamond Beach, NJ
May 2, 2024 3:10 PM EDT (19:10 UTC) Change Location
 | Sunrise 5:57 AM Sunset 7:56 PM Moonrise 3:05 AM Moonset 1:34 PM |
ANZ454 Coastal Waters From Cape May Nj To Cape Henlopen De Out 20 Nm- 102 Pm Edt Thu May 2 2024
This afternoon - S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave detail: S 2 ft at 4 seconds and E 1 ft at 9 seconds.
Tonight - SW winds 10 to 15 kt, becoming ne 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave detail: S 2 ft at 4 seconds and E 1 ft at 6 seconds.
Fri - E winds 15 to 20 kt. Seas 2 to 4 ft. Wave detail: se 3 ft at 5 seconds and E 1 ft at 11 seconds.
Fri night - E winds 10 to 15 kt. Seas 3 to 4 ft. Wave detail: E 4 ft at 6 seconds and E 1 ft at 11 seconds.
Sat - E winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave detail: E 3 ft at 6 seconds.
Sat night - E winds around 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave detail: se 3 ft at 7 seconds. A chance of showers after midnight.
Sun - SE winds around 15 kt. Seas 3 to 5 ft. A chance of showers.
Sun night - S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers.
Mon - SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
Mon night - SW winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers.
ANZ400 102 Pm Edt Thu May 2 2024
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay - High pressure lingers through the remainder of the day, before a series of fronts and low pressure systems affect the east coast Wednesday through the end of the week. High pressure looks to return to end the weekend and start the new week.
Area Discussion for - Philadelphia/Mount Holly, PA
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FXUS61 KPHI 021747 AFDPHI
Area Forecast Discussion National Weather Service Mount Holly NJ 147 PM EDT Thu May 2 2024
SYNOPSIS
A cold front moves through tonight, with high pressure building in for the end of the week. A weakening cold front approaches on Saturday, stalling out on Sunday. The front lingers through early part of next week, before lifting north as a warm front by the middle of next week.
NEAR TERM /THROUGH FRIDAY/
145 PM...As of early this afternoon, low pressure was moving into western New England with a trailing cold front extending west from this feature back into upstate NY and northern PA.
Meanwhile a surface trough extended to the south and west right across the mid Atlantic I-95 corridor. As this trough continues to move through, winds will shift from southwest to more westerly across the area this afternoon with a drop in dew points. However actual air temperatures will remain quite warm with highs still expected to top out in the mid to upper 80s across much of the region. The exceptions will be over the Poconos and right along the coast where it will be cooler.
However winds becoming mainly offshore will keep any sea breezes from really getting inland so while right at the shore temperatures will be in the upper 60s to low/mid 70s, just a couple miles inland it will be in the 80s. Otherwise, it will be a mainly sunny and precipitation free afternoon across the area.
As we head into this evening, the cold front moves southward through the region as low pressure moves southeastward off the coast of New England and high pressure builds into eastern Canada. This setup will cause the winds to shift to an east/northeast direction over the mid Atlantic and it's likely this will eventually bring in some marine stratus along the coast by Friday morning. Expect overnight lows mainly in the 50s...ranging from low 50s over the southern Poconos, NW NJ, and and the NJ coast to mid/upper 50s near the urban corridor of SE PA extending south into interior portions of Delmarva.
For Friday, ridging aloft will keep the area dry for at least one more day as it helps to keep the approaching system from the west at bay. Meanwhile the front will be stalled to our south but then arcing back to the north and west into PA just west of our region. The upshot of this is it will be a much cooler day with continuing easterly winds and variable cloud cover. Through the morning, marine stratus near the coast will try to push inland for a time and could get to near the I-95 corridor before starting to retreat. Meanwhile by afternoon there will be some clouds moving in from the west. So not a completely sunny day but much of the region should see at least a little sun at some point except perhaps right along the coast.
Speaking of which, expect highs near the coast will only get into the upper 50s to low 60s with warmer temperatures the farther west you go. Eastern PA should see highs mainly in the upper 60s to low 70s except some mid 70s over portions of Berks County.
SHORT TERM /FRIDAY NIGHT THROUGH SATURDAY NIGHT/
Dry conditions will persist for Friday as an upper level ridge slides overhead. A little bit of a tricky high temperature forecast for Friday though as high pressure over New England will result in an onshore flow and a backdoor cold front setting up near the I-95 corridor. Still some uncertainty where exactly this boundary sets up, but temperatures west of the front (primarily the Lehigh Valley) will get into the 70s, with upper 50s/60s near and east of the backdoor front. Temperatures on Friday Night will fall into the upper 40s/low 50s.
For Saturday, upper level ridging and high pressure begin to move offshore. A cold front will slowly move across Pennsylvania with some showers moving in ahead of it. The bulk of the rain will come for the back half of the weekend, but a small chance (15-25%) of showers are expected west of the I-95 corridor for Saturday.
Otherwise, it will be mostly cloudy and cool with temperatures in the low to mid 60s.
LONG TERM /SUNDAY THROUGH THURSDAY/
Weakening cold front approaches on Saturday night with numerous shortwaves moving over the region through Sunday. A solid push of moisture works in from the southwest as well and PWATs climb into the 1.3-1.5 in. range which is around the 90th percentile for early May. Periods of rain are expected for Sunday, some of which could be heavy at times. Not overly concerned at the moment with flooding given dry antecedent conditions however. Instability is lacking overall as well, so the threat for thunderstorms is rather low.
Temperatures will hover in the 60s, with lower 70s in lower Delmarva.
The early and middle portions of next week look rather unsettled, though not expecting any significant impacts at this time. A stalled boundary looks to set up over the southern portion of the region with several waves of low pressure riding along the stationary front. High pressure nudging in from the northwest could limit shower activity, depending on how much influence it has over the region. Temperatures Monday/Tuesday will hover near/slightly above seasonal levels for early May, with mid to upper 70s expected. That boundary looks to eventually lift north as a warm front by midweek and we should return to the 80s by Wednesday.
AVIATION /17Z THURSDAY THROUGH MONDAY/
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.
This afternoon...VFR with west to WNW winds around 10 to 15 gusting upwards of 20 to 25 knots. High confidence.
Tonight...Mainly VFR except some MVFR cigs possible towards 12z at ACY. Winds diminishing early this evening to 5-10 knots and becoming northwesterly before veering to northeasterly by the late evening through the overnight. Moderate confidence.
Friday...Mainly VFR except a period of MVFR cigs possible in the morning at ACY (60 percent chance) and MIV (40 percent chance)
due to marine stratus. Winds generally easterly around 10 knots.
Moderate confidence.
Outlook...
Friday through Friday Night...Primarily VFR, though sub-VFR conditions possible (30-50%) later in the day at KMIV/KACY with marine stratus working in.
Saturday through Saturday Night...sub-VFR conditions possible (30- 50%) with CIG restrictions. Slight chance (15-25%) of showers for the I-95 and Lehigh Valley terminals.
Sunday through Monday...sub-VFR conditions likely (60-80%) with periods of rain.
MARINE
Sub-Small Craft Advisory conditions today and tonight. SW winds will increase to 10 to 15 kt with gusts up to 20 kt this afternoon, then winds veer to northeast around 10 kt tonight.
Seas will average 2 to 3 ft through tonight and then 3 to 4 ft by later Friday.
Outlook...
Friday night through Saturday Night...No marine headlines anticipated.
Sunday...SCA conditions possible (20-30%) as seas near 5 feet on the ocean.
Sunday through Monday...No marine headlines anticipated.
FIRE WEATHER
Warm, dry, and breezy conditions on tap through today under sunny skies. Minimum RH values will drop to 25 to 35 percent across the region this afternoon due to the combination of highs in the mid to upper 80s and surface dew points dropping into the 40s over much of eastern PA into northern NJ with 50s south of here. Southwest winds shifting to northwest will increase to 10 to 15 mph with 20 mph gusts this afternoon. While a wetting rainfall occurred on Tuesday across the Lehigh Valley, southern Poconos, and northern New Jersey, remaining areas of southeastern Pennsylvania, New Jersey, and Delmarva have not experienced a wetting rainfall in well over a week now. This will result in some concerns for wildfire spread today.
Coordination will be needed with our fire weather partners to determine if any products will be needed to highlight this potential threat.
CLIMATE
Near record breaking high temperatures are expected today. Records for our climate sites are listed below:
Record High Temperatures May 2 Site Record/Year Allentown (ABE) 90/2001 AC Airport (ACY) 91/2018 AC Marina (55N) 85/1913 Georgetown (GED) 90/2018 Mount Pocono (MPO) 83/1913 Philadelphia (PHL) 89/2010 Reading (RDG) 89/1899 Trenton (TTN) 88/2010 & 2018 Wilmington (ILG) 90/1894
PHI WATCHES/WARNINGS/ADVISORIES
PA...None.
NJ...None.
DE...None.
MD...None.
MARINE...None.
Area Forecast Discussion National Weather Service Mount Holly NJ 147 PM EDT Thu May 2 2024
SYNOPSIS
A cold front moves through tonight, with high pressure building in for the end of the week. A weakening cold front approaches on Saturday, stalling out on Sunday. The front lingers through early part of next week, before lifting north as a warm front by the middle of next week.
NEAR TERM /THROUGH FRIDAY/
145 PM...As of early this afternoon, low pressure was moving into western New England with a trailing cold front extending west from this feature back into upstate NY and northern PA.
Meanwhile a surface trough extended to the south and west right across the mid Atlantic I-95 corridor. As this trough continues to move through, winds will shift from southwest to more westerly across the area this afternoon with a drop in dew points. However actual air temperatures will remain quite warm with highs still expected to top out in the mid to upper 80s across much of the region. The exceptions will be over the Poconos and right along the coast where it will be cooler.
However winds becoming mainly offshore will keep any sea breezes from really getting inland so while right at the shore temperatures will be in the upper 60s to low/mid 70s, just a couple miles inland it will be in the 80s. Otherwise, it will be a mainly sunny and precipitation free afternoon across the area.
As we head into this evening, the cold front moves southward through the region as low pressure moves southeastward off the coast of New England and high pressure builds into eastern Canada. This setup will cause the winds to shift to an east/northeast direction over the mid Atlantic and it's likely this will eventually bring in some marine stratus along the coast by Friday morning. Expect overnight lows mainly in the 50s...ranging from low 50s over the southern Poconos, NW NJ, and and the NJ coast to mid/upper 50s near the urban corridor of SE PA extending south into interior portions of Delmarva.
For Friday, ridging aloft will keep the area dry for at least one more day as it helps to keep the approaching system from the west at bay. Meanwhile the front will be stalled to our south but then arcing back to the north and west into PA just west of our region. The upshot of this is it will be a much cooler day with continuing easterly winds and variable cloud cover. Through the morning, marine stratus near the coast will try to push inland for a time and could get to near the I-95 corridor before starting to retreat. Meanwhile by afternoon there will be some clouds moving in from the west. So not a completely sunny day but much of the region should see at least a little sun at some point except perhaps right along the coast.
Speaking of which, expect highs near the coast will only get into the upper 50s to low 60s with warmer temperatures the farther west you go. Eastern PA should see highs mainly in the upper 60s to low 70s except some mid 70s over portions of Berks County.
SHORT TERM /FRIDAY NIGHT THROUGH SATURDAY NIGHT/
Dry conditions will persist for Friday as an upper level ridge slides overhead. A little bit of a tricky high temperature forecast for Friday though as high pressure over New England will result in an onshore flow and a backdoor cold front setting up near the I-95 corridor. Still some uncertainty where exactly this boundary sets up, but temperatures west of the front (primarily the Lehigh Valley) will get into the 70s, with upper 50s/60s near and east of the backdoor front. Temperatures on Friday Night will fall into the upper 40s/low 50s.
For Saturday, upper level ridging and high pressure begin to move offshore. A cold front will slowly move across Pennsylvania with some showers moving in ahead of it. The bulk of the rain will come for the back half of the weekend, but a small chance (15-25%) of showers are expected west of the I-95 corridor for Saturday.
Otherwise, it will be mostly cloudy and cool with temperatures in the low to mid 60s.
LONG TERM /SUNDAY THROUGH THURSDAY/
Weakening cold front approaches on Saturday night with numerous shortwaves moving over the region through Sunday. A solid push of moisture works in from the southwest as well and PWATs climb into the 1.3-1.5 in. range which is around the 90th percentile for early May. Periods of rain are expected for Sunday, some of which could be heavy at times. Not overly concerned at the moment with flooding given dry antecedent conditions however. Instability is lacking overall as well, so the threat for thunderstorms is rather low.
Temperatures will hover in the 60s, with lower 70s in lower Delmarva.
The early and middle portions of next week look rather unsettled, though not expecting any significant impacts at this time. A stalled boundary looks to set up over the southern portion of the region with several waves of low pressure riding along the stationary front. High pressure nudging in from the northwest could limit shower activity, depending on how much influence it has over the region. Temperatures Monday/Tuesday will hover near/slightly above seasonal levels for early May, with mid to upper 70s expected. That boundary looks to eventually lift north as a warm front by midweek and we should return to the 80s by Wednesday.
AVIATION /17Z THURSDAY THROUGH MONDAY/
The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.
This afternoon...VFR with west to WNW winds around 10 to 15 gusting upwards of 20 to 25 knots. High confidence.
Tonight...Mainly VFR except some MVFR cigs possible towards 12z at ACY. Winds diminishing early this evening to 5-10 knots and becoming northwesterly before veering to northeasterly by the late evening through the overnight. Moderate confidence.
Friday...Mainly VFR except a period of MVFR cigs possible in the morning at ACY (60 percent chance) and MIV (40 percent chance)
due to marine stratus. Winds generally easterly around 10 knots.
Moderate confidence.
Outlook...
Friday through Friday Night...Primarily VFR, though sub-VFR conditions possible (30-50%) later in the day at KMIV/KACY with marine stratus working in.
Saturday through Saturday Night...sub-VFR conditions possible (30- 50%) with CIG restrictions. Slight chance (15-25%) of showers for the I-95 and Lehigh Valley terminals.
Sunday through Monday...sub-VFR conditions likely (60-80%) with periods of rain.
MARINE
Sub-Small Craft Advisory conditions today and tonight. SW winds will increase to 10 to 15 kt with gusts up to 20 kt this afternoon, then winds veer to northeast around 10 kt tonight.
Seas will average 2 to 3 ft through tonight and then 3 to 4 ft by later Friday.
Outlook...
Friday night through Saturday Night...No marine headlines anticipated.
Sunday...SCA conditions possible (20-30%) as seas near 5 feet on the ocean.
Sunday through Monday...No marine headlines anticipated.
FIRE WEATHER
Warm, dry, and breezy conditions on tap through today under sunny skies. Minimum RH values will drop to 25 to 35 percent across the region this afternoon due to the combination of highs in the mid to upper 80s and surface dew points dropping into the 40s over much of eastern PA into northern NJ with 50s south of here. Southwest winds shifting to northwest will increase to 10 to 15 mph with 20 mph gusts this afternoon. While a wetting rainfall occurred on Tuesday across the Lehigh Valley, southern Poconos, and northern New Jersey, remaining areas of southeastern Pennsylvania, New Jersey, and Delmarva have not experienced a wetting rainfall in well over a week now. This will result in some concerns for wildfire spread today.
Coordination will be needed with our fire weather partners to determine if any products will be needed to highlight this potential threat.
CLIMATE
Near record breaking high temperatures are expected today. Records for our climate sites are listed below:
Record High Temperatures May 2 Site Record/Year Allentown (ABE) 90/2001 AC Airport (ACY) 91/2018 AC Marina (55N) 85/1913 Georgetown (GED) 90/2018 Mount Pocono (MPO) 83/1913 Philadelphia (PHL) 89/2010 Reading (RDG) 89/1899 Trenton (TTN) 88/2010 & 2018 Wilmington (ILG) 90/1894
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 |
| CMAN4 - 8536110 - Cape May, NJ | 5 mi | 53 min | SSE 12G | 68°F | 29.94 | |||
| BRND1 - 8555889 - Brandywine Shoal Light, DE | 13 mi | 53 min | S 16G | 64°F | 29.94 | |||
| LWSD1 - 8557380 - Lewes, DE | 18 mi | 53 min | WNW 8.9G | 83°F | 61°F | 29.94 | ||
| 44084 | 30 mi | 71 min | 56°F | 3 ft | ||||
| DRSD1 - Delaware Reserve, DE | 32 mi | 101 min | W 5.1 | 86°F | 29.95 | 61°F | ||
| 44009 - DELAWARE BAY 26 NM Southeast of Cape May, NJ | 35 mi | 41 min | S 14G | 58°F | 55°F | 29.96 | 58°F | |
| SJSN4 - 8537121 - Ship John Shoal, NJ | 36 mi | 53 min | SE 8.9G | 65°F | 29.93 | |||
| ACYN4 - 8534720 - Atlantic City, NJ | 37 mi | 53 min | 64°F | 58°F | 29.88 | |||
| OCIM2 - 8570283 - Ocean City Inlet, MD | 45 mi | 53 min | SSW 12G | 58°F | 60°F | 29.95 | ||
| JCRN4 - Jacques Cousteau Reserve, NJ | 46 mi | 101 min | SE 11 | 80°F | 29.95 | 64°F |
toggle option: (graph/table)
Airport Reports
EDIT (hide/show) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Temp | DewPt | RH | inHg |
| KWWD CAPE MAY COUNTY,NJ | 5 sm | 14 min | S 12 | 10 sm | Clear | 75°F | 64°F | 69% | 29.94 |
Cape May Harbor
Click for Map
Thu -- 02:58 AM EDT 4.75 feet High Tide
Thu -- 03:04 AM EDT Moonrise
Thu -- 05:59 AM EDT Sunrise
Thu -- 09:25 AM EDT 0.39 feet Low Tide
Thu -- 01:34 PM EDT Moonset
Thu -- 03:43 PM EDT 4.37 feet High Tide
Thu -- 07:53 PM EDT Sunset
Thu -- 09:50 PM EDT 0.76 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Thu -- 02:58 AM EDT 4.75 feet High Tide
Thu -- 03:04 AM EDT Moonrise
Thu -- 05:59 AM EDT Sunrise
Thu -- 09:25 AM EDT 0.39 feet Low Tide
Thu -- 01:34 PM EDT Moonset
Thu -- 03:43 PM EDT 4.37 feet High Tide
Thu -- 07:53 PM EDT Sunset
Thu -- 09:50 PM EDT 0.76 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Cape May Harbor, New Jersey, Tide feet
| 12 am |
| 3.2 |
| 1 am |
| 4 |
| 2 am |
| 4.6 |
| 3 am |
| 4.7 |
| 4 am |
| 4.4 |
| 5 am |
| 3.6 |
| 6 am |
| 2.5 |
| 7 am |
| 1.6 |
| 8 am |
| 0.9 |
| 9 am |
| 0.4 |
| 10 am |
| 0.5 |
| 11 am |
| 1 |
| 12 pm |
| 2 |
| 1 pm |
| 3 |
| 2 pm |
| 3.8 |
| 3 pm |
| 4.3 |
| 4 pm |
| 4.3 |
| 5 pm |
| 3.9 |
| 6 pm |
| 3.1 |
| 7 pm |
| 2.2 |
| 8 pm |
| 1.5 |
| 9 pm |
| 0.9 |
| 10 pm |
| 0.8 |
| 11 pm |
| 1.1 |
Delaware Bay Entrance
Click for Map
Thu -- 01:55 AM EDT 1.41 knots Max Flood
Thu -- 03:04 AM EDT Moonrise
Thu -- 05:11 AM EDT -0.00 knots Slack
Thu -- 06:00 AM EDT Sunrise
Thu -- 08:53 AM EDT -1.34 knots Max Ebb
Thu -- 11:50 AM EDT 0.00 knots Slack
Thu -- 01:34 PM EDT Moonset
Thu -- 02:39 PM EDT 1.25 knots Max Flood
Thu -- 05:49 PM EDT -0.00 knots Slack
Thu -- 07:54 PM EDT Sunset
Thu -- 09:18 PM EDT -1.18 knots Max Ebb
Thu -- 11:57 PM EDT 0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Thu -- 01:55 AM EDT 1.41 knots Max Flood
Thu -- 03:04 AM EDT Moonrise
Thu -- 05:11 AM EDT -0.00 knots Slack
Thu -- 06:00 AM EDT Sunrise
Thu -- 08:53 AM EDT -1.34 knots Max Ebb
Thu -- 11:50 AM EDT 0.00 knots Slack
Thu -- 01:34 PM EDT Moonset
Thu -- 02:39 PM EDT 1.25 knots Max Flood
Thu -- 05:49 PM EDT -0.00 knots Slack
Thu -- 07:54 PM EDT Sunset
Thu -- 09:18 PM EDT -1.18 knots Max Ebb
Thu -- 11:57 PM EDT 0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Delaware Bay Entrance, Delaware Current, knots
| 12 am |
| 0.8 |
| 1 am |
| 1.2 |
| 2 am |
| 1.4 |
| 3 am |
| 1.2 |
| 4 am |
| 0.7 |
| 5 am |
| 0.1 |
| 6 am |
| -0.5 |
| 7 am |
| -0.9 |
| 8 am |
| -1.2 |
| 9 am |
| -1.3 |
| 10 am |
| -1.1 |
| 11 am |
| -0.6 |
| 12 pm |
| 0.1 |
| 1 pm |
| 0.7 |
| 2 pm |
| 1.2 |
| 3 pm |
| 1.2 |
| 4 pm |
| 0.9 |
| 5 pm |
| 0.5 |
| 6 pm |
| -0.1 |
| 7 pm |
| -0.6 |
| 8 pm |
| -1 |
| 9 pm |
| -1.2 |
| 10 pm |
| -1.1 |
| 11 pm |
| -0.7 |
Dover AFB, DE,
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