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Marine Weather and Tides
Version 3.4 |
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17. 1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support. |
Sunrise 6:19AM | Sunset 5:58PM | Sunday March 7, 2021 4:32 PM EST (21:32 UTC) | Moonrise 3:41AM | Moonset 1:02PM | Illumination 32% | ![]() |
ANZ453 Coastal Waters From Great Egg Inlet To Cape May Nj Out 20 Nm- 116 Pm Est Sun Mar 7 2021
This afternoon..NW winds 5 to 10 kt. Seas 2 ft or less. SWell mainly from the N with a dominant period of 3 seconds.
Tonight..NW winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt in the late evening and overnight. Seas 2 ft or less. SWell mainly from the N with a dominant period of 3 seconds.
Mon..NW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt in the afternoon. Seas 2 ft or less. SWell mainly from the se with a dominant period of 8 seconds, becoming mainly from the ne with a dominant period of 8 seconds in the afternoon.
Mon night..SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 ft or less. SWell mainly from the se with a dominant period of 9 seconds.
Tue..SW winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 ft or less.
Tue night..SW winds 5 to 10 kt, becoming S after midnight. Seas 2 ft or less.
Wed..S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 ft or less, then around 3 ft in the afternoon.
Wed night..S winds around 15 kt. Seas 3 to 4 ft.
Thu..SW winds 15 to 20 kt. Seas 3 to 5 ft.
Thu night..SW winds 15 to 20 kt. Seas 3 to 5 ft.
This afternoon..NW winds 5 to 10 kt. Seas 2 ft or less. SWell mainly from the N with a dominant period of 3 seconds.
Tonight..NW winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt in the late evening and overnight. Seas 2 ft or less. SWell mainly from the N with a dominant period of 3 seconds.
Mon..NW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt in the afternoon. Seas 2 ft or less. SWell mainly from the se with a dominant period of 8 seconds, becoming mainly from the ne with a dominant period of 8 seconds in the afternoon.
Mon night..SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 ft or less. SWell mainly from the se with a dominant period of 9 seconds.
Tue..SW winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 ft or less.
Tue night..SW winds 5 to 10 kt, becoming S after midnight. Seas 2 ft or less.
Wed..S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 ft or less, then around 3 ft in the afternoon.
Wed night..S winds around 15 kt. Seas 3 to 4 ft.
Thu..SW winds 15 to 20 kt. Seas 3 to 5 ft.
Thu night..SW winds 15 to 20 kt. Seas 3 to 5 ft.
ANZ400 116 Pm Est Sun Mar 7 2021
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. Another trough will cross the region on Sunday into Monday before upper level low pressure in the canadian maritimes finally moves off into the north atlantic. High pressure and dry weather will then dominate through the middle of next week, with a warming trend. A cold front will approach and cross through the region Friday into Saturday.
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. Another trough will cross the region on Sunday into Monday before upper level low pressure in the canadian maritimes finally moves off into the north atlantic. High pressure and dry weather will then dominate through the middle of next week, with a warming trend. A cold front will approach and cross through the region Friday into Saturday.
7 Day Forecast for Marine Location Near Sea Isle City, NJ
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location: 39.18, -74.71 debug
Area Discussion for - Philadelphia/Mount Holly, PA
  (on/off)  Help NOTE: mouseover dotted underlined text for definitionFXUS61 KPHI 072042 AFDPHI
Area Forecast Discussion National Weather Service Mount Holly NJ 342 PM EST Sun Mar 7 2021
SYNOPSIS. Another trough will cross the region on Sunday into Monday before upper level low pressure in the Canadian maritimes finally moves off into the North Atlantic. High pressure and dry weather will then dominate through most of next week, with a warming trend. A cold front will approach and cross through the region Friday or Saturday.
NEAR TERM /THROUGH MONDAY/. Surface high pressure continues to build across the region today as the flow has generally become light northwesterly. A mid level shortwave is tracking through eastern PA and northern New Jersey today and should represent the final wave from the upper level low over Newfoundland. Behind the shortwave the mid level flow is expected to become slightly more zonal overnight. With chilly 925/850 temps in place tonight and no cloud cover we'll see highly efficient radiational cooling. The PBL should easily decouple tonight setting the stage for surface temperatures to drop quickly after we lose daytime incoming solar radiation. Expect a fairly sharp drop in temps after sunset with temps bottoming out in the mid to low teens across the area.
By mid afternoon Monday, the flow should start to shift from northwest to westerly and strong warm air advection aloft will start to move over the region. With the flow remaining northwest and limited time for the warm air advection to impact the region I've opted to keep temps slightly cooler from roughly from Allentown/Trenton/Toms River north with highs in the 30s at elevation and getting to near 40 in the lower elevation areas. In the urban corridor and locations south and east, expect modest flow to eventually warm the area to the mid 40s under clear skies.
SHORT TERM /MONDAY NIGHT THROUGH WEDNESDAY/. The well-advertised and long awaited warm-up finally arrives during the midweek period. The forecast philosophy for this period is largely unchanged, as troughing departs offshore and strong ridging builds into the East. A large center of surface high pressure will gradually shift from over the Southeast out into the western Atlantic This ridging and high pressure dominated pattern will send temperatures rising and leave our region far removed from any chance of precipitation.
Tuesday will begin seasonably chilly, but sunshine and dry air will promote efficient heating. The air mass won't yet be quite warm enough to support the level of warmth expected later in the week. But it will still be a pleasant day and a big departure from the recent lengthy stretch of colder than normal days. Highs will rise into the upper 50s and low 60s, a good 10 degrees above average with light westerly winds. Lows Tuesday night won't be cold as previous nights, but we will still radiate well and fall back into the 30s.
On Wednesday, we again see sunny skies and dry air, and the air mass will have warmed a little further. Because of that, many areas will see highs in the 60s on Wednesday, with some mid 60s expected. One difference for Wednesday, and a bit of a change from previous cycles, is that the wind direction looks more due southerly or even a bit east of south for most of the day, as opposed to west of south. This will yield temperatures several degrees cooler near the coast, especially eastern Monmouth and Ocean counties.
LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/. Overview .
Unseasonably warm weather continues into the end of the work week as strong ridging remains in place over the East. Warm conditions will remain in place as long as our region stays south of a sharp frontal zone dividing the warmer air over us from much colder air to the north. Trends last night and today have been to keep that frontal zone north of us for longer and to amplify the Eastern ridge a little more. This means conditions could become even a little warmer than had already been expected late this week, with 70 degree readings becoming a real possibility for Thursday and Friday in some areas. By next weekend, it still looks like the front will drift far enough south to move through the region, bringing much cooler temperatures.
As with the temperatures, precipitation chances will be closely tied to the approach of the front. No measurable precipitation is expected through Thursday. Showery weather associated with the front could arrive across the northwestern zones as early as Thursday night, but more likely will hold off until later Friday or Friday night. But even once the front arrives, precipitation should be on the light side.
Dailies .
Thursday-Friday . The warm spell continues, and becomes even more pronounced heading towards the end of the week. Ridging over the East reaches its maximum strength, and temperatures aloft continue to warm. Thursday will be similar to Wednesday in many ways, and with the air mass a little warmer we will likely break into the upper 60s in many areas, and may touch 70 in a few spots. The ocean influence should be lesser on Thursday with a southwest flow, so the coastal cooling effect will not be as pronounced. One note on Thursday's forecast, is that winds are trending a bit higher, with southwesterly gusts of 20 to 25 mph looking possible, and minimum RH values are forecast to be near 40%. So combined with the warm temperatures and very lengthy dry spell, this will at least be pushing us close to fire weather thresholds, and we will likely be in coordination with our partners.
For Friday, there continue to be some timing differences with the approaching cold front. The EC has been more progressive than the GFS in bringing the front through, but the overall trend the past couple of cycles has been a bit slower on its passage, keeping us in the warmer air mass. If the front stays far enough north, Friday could be the warmest day of the week especially in southern areas, and have forecast highs in the upper 60s to around 70. Uncertainty is still a little higher on Friday, as numbers could be cooler if the front starts to move in sooner, or could even be a little warmer with more widespread low 70s if it stays safely north. In addition, continuing to mention a 20 to 30 percent chance of showers, mainly in the afternoon, for most of the region given the possibility that the front could be close enough for this to occur.
Saturday-Sunday . By the weekend, it is likely that the cold front dropping down from the north-northwest will have moved through, though some guidance suggests it may stall over or just south of the region. Either way, temperatures on Saturday appear likely to fall back towards normal levels, and may drop below normal by Sunday. With the possibility of the front still being nearby, maintained generic slgt chc to low end chc PoPs for the weekend, with no use at this stage trying to time the best chances. Any precipitation over the weekend continues to look light.
AVIATION /21Z SUNDAY THROUGH FRIDAY/. The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.
Tonight . VFR with northwesterly winds from 5 to 10 knots. High confidence.
Monday . VFR. Winds gradually shifting from northwesterly to southwesterly at 5 to 10 kt. High confidence.
Outlook .
Monday night . VFR. Southwest wind around 5 kt. High confidence.
Tuesday-Tuesday night . VFR. Southwest wind 5 to 10 kt gradually shifting to west-northwest through the day, then light and variable overnight. High confidence.
Wednesday-Wednesday night . VFR. Light winds become southeasterly Wednesday morning, then gradually shift to southerly and south- southwesterly through the day and night with speeds of 5 to 10 kt. High confidence.
Thursday-Friday . VFR. Southwest wind 10 to 15 kt. High confidence.
MARINE. Sub-advisory conditions expected on the coastal waters and across the bay as northwest flow continues with gusts generally at 15 knots or less. Seas from 1 to 3 feet. Seas could be somewhat choppy with short periods of 3 to 4 seconds the through Monday.
Outlook .
Monday night-Wednesday night . No marine headlines are anticipated. Several wind shifts through the period with gusts 20 kt or less. Seas 1 to 3 ft. Fair weather.
Thursday-Thursday night . SCA criteria may be approached as southwest winds gust close to 25 kt and seas build to 4 to 5 ft.
FIRE WEATHER. A prolonged dry period will remain in place over the region, so there will be continued monitoring for fire weather potential this week. Winds appear low enough to preclude any fire weather concerns through at least Wednesday. Monday should have fairly dry conditions with RH levels dropping to below 40%. Tuesday and Wednesday will be similarly dry and also much warmer than normal with highs in the 60s. By Thursday, a combination of warm temperatures, breezier conditions, and RH levels near 40% may lead to an increase in fire weather concerns.
PHI WATCHES/WARNINGS/ADVISORIES. PA . None. NJ . None. DE . None. MD . None. MARINE . None.
Synopsis . O'Brien Near Term . Deal Short Term . O'Brien Long Term . O'Brien Aviation . Deal/O'Brien Marine . Deal/O'Brien Fire Weather . WFO PHI
Weather Reporting Stations
EDIT (on/off)  Help NOTE: Click on distance to see the station location on a mapStations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
ACYN4 - 8534720 - Atlantic City, NJ | 20 mi | 45 min | 36°F | 40°F | 1026.5 hPa | |||
CMAN4 - 8536110 - Cape May, NJ | 20 mi | 45 min | NW 8.9 G 9.9 | 39°F | 41°F | 1026.4 hPa | ||
BRND1 - 8555889 - Brandywine Shoal Light, DE | 25 mi | 51 min | N 8 G 8.9 | 1027.1 hPa | ||||
JCRN4 - Jacques Cousteau Reserve, NJ | 28 mi | 63 min | SSW 5.1 | 44°F | 1027 hPa | 13°F | ||
LWSD1 - 8557380 - Lewes, DE | 35 mi | 45 min | N 8.9 G 9.9 | 37°F | 41°F | 1026.8 hPa | ||
SJSN4 - 8537121 - Ship John Shoal, NJ | 36 mi | 45 min | WNW 11 G 13 | 40°F | 39°F | 1027.1 hPa | ||
DRSD1 - Delaware Reserve, DE | 39 mi | 63 min | NW 6 | 42°F | 1028 hPa | 20°F |
Wind History for Cape May, NJ
(wind in knots) EDIT (on/off)  Help4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | |
Last 24hr | NW G13 | NW G18 | NW G18 | NW G17 | NW G15 | NW G15 | NW G17 | NW G19 | NW G14 | NW G13 | NW G13 | NW G14 | N G11 | NE | NE | NE G6 | N G6 | NW G10 | NW G10 | NW G8 | W G11 | NW G12 | NW | NW |
1 day ago | NW G25 | NW G27 | W G27 | NW G27 | NW | W G30 | NW G29 | NW G30 | NW G30 | NW G27 | NW | W G23 | W G21 | W G23 | W | W | W G20 | W G19 | W G19 | NW G18 | NW G16 | NW G17 | NW | NW G18 |
2 days ago | NW G17 | NW G18 | NW G23 | NW G20 | NW G24 | NW G24 | NW G24 | NW G28 | NW G29 | NW G29 | NW G31 | NW G27 | NW G25 | NW | NW G33 | NW G27 | NW G30 | NW G29 | NW G30 | NW G29 | W G27 | NW G31 | NW G27 | NW G28 |
Airport Reports
EDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
Wildwood, Cape May County Airport, NJ | 15 mi | 37 min | W 8 | 10.00 mi | Fair | 40°F | 20°F | 45% | 1026.9 hPa |
Atlantic City, Atlantic City International Airport, NJ | 21 mi | 39 min | WNW 12 G 17 | 10.00 mi | Fair | 44°F | 12°F | 27% | 1025.6 hPa |
Millville, Millville Municipal Airport, NJ | 23 mi | 39 min | NW 12 G 18 | 10.00 mi | Fair | 43°F | 13°F | 29% | 1026.1 hPa |
Link to 5 minute data for KWWD
Wind History from WWD (wind in knots)
5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | |
Last 24hr | NW | NW | NW | NW | NW | NW | NW | N | NW | NW | N | N | N | N | N | N | N | NW | W | W | W G15 | W G16 | W | W |
1 day ago | W G21 | W G19 | NW G21 | NW G21 | W G23 | W G23 | W G19 | NW G20 | NW G20 | W G17 | W | W G18 | W G16 | W | W | W | W | NW G21 | W G19 | NW G18 | NW G18 | NW | G14 | NW |
2 days ago | NW G15 | NW G15 | NW G16 | NW G19 | NW G18 | N G18 | NW G20 | NW G18 | NW G22 | NW G19 | NW G24 | NW G20 | NW G20 | NW G21 | NW G23 | NW G23 | NW G23 | NW G20 | NW G22 | NW G25 | NW G24 | NW G23 | W G20 | NW G22 |
Tide / Current Tables for Ludlam Bay, west side, New Jersey
EDIT Weekend mode (on/off) (on/off)  Help One Week of DataLudlam Bay
Click for Map
Sun -- 02:41 AM EST Moonrise
Sun -- 02:48 AM EST 4.22 feet High Tide
Sun -- 06:22 AM EST Sunrise
Sun -- 09:46 AM EST 0.25 feet Low Tide
Sun -- 12:02 PM EST Moonset
Sun -- 03:23 PM EST 3.40 feet High Tide
Sun -- 05:57 PM EST Sunset
Sun -- 09:57 PM EST 0.39 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sun -- 02:41 AM EST Moonrise
Sun -- 02:48 AM EST 4.22 feet High Tide
Sun -- 06:22 AM EST Sunrise
Sun -- 09:46 AM EST 0.25 feet Low Tide
Sun -- 12:02 PM EST Moonset
Sun -- 03:23 PM EST 3.40 feet High Tide
Sun -- 05:57 PM EST Sunset
Sun -- 09:57 PM EST 0.39 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
12 am | 1 am | 2 am | 3 am | 4 am | 5 am | 6 am | 7 am | 8 am | 9 am | 10 am | 11 am | 12 pm | 1 pm | 2 pm | 3 pm | 4 pm | 5 pm | 6 pm | 7 pm | 8 pm | 9 pm | 10 pm | 11 pm |
2.6 | 3.4 | 4.1 | 4.2 | 3.9 | 3.1 | 2.3 | 1.6 | 0.9 | 0.4 | 0.3 | 0.7 | 1.4 | 2.3 | 3 | 3.4 | 3.3 | 2.9 | 2.2 | 1.6 | 1.1 | 0.6 | 0.4 | 0.7 |
Tide / Current Tables for Dennis Creek, Route 47 bridge, Delaware Bay, New Jersey
EDIT (on/off)  Help One Week of DataDennis Creek
Click for Map
Sun -- 02:41 AM EST Moonrise
Sun -- 05:14 AM EST 5.29 feet High Tide
Sun -- 06:22 AM EST Sunrise
Sun -- 11:10 AM EST 0.45 feet Low Tide
Sun -- 12:02 PM EST Moonset
Sun -- 05:48 PM EST 3.85 feet High Tide
Sun -- 05:58 PM EST Sunset
Sun -- 11:05 PM EST 0.29 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sun -- 02:41 AM EST Moonrise
Sun -- 05:14 AM EST 5.29 feet High Tide
Sun -- 06:22 AM EST Sunrise
Sun -- 11:10 AM EST 0.45 feet Low Tide
Sun -- 12:02 PM EST Moonset
Sun -- 05:48 PM EST 3.85 feet High Tide
Sun -- 05:58 PM EST Sunset
Sun -- 11:05 PM EST 0.29 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
12 am | 1 am | 2 am | 3 am | 4 am | 5 am | 6 am | 7 am | 8 am | 9 am | 10 am | 11 am | 12 pm | 1 pm | 2 pm | 3 pm | 4 pm | 5 pm | 6 pm | 7 pm | 8 pm | 9 pm | 10 pm | 11 pm |
1.2 | 2.1 | 3.2 | 4.2 | 5 | 5.3 | 5.1 | 4.4 | 3.3 | 1.9 | 0.9 | 0.5 | 0.6 | 1.1 | 1.8 | 2.6 | 3.3 | 3.7 | 3.8 | 3.5 | 2.7 | 1.7 | 0.7 | 0.3 |
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