Saturday, August15, 2020
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Marine Weather and Tides
Sea Isle City, NJ

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:10AMSunset 7:54PM Saturday August 15, 2020 4:27 AM EDT (08:27 UTC) Moonrise 2:14AMMoonset 5:38PM Illumination 13% Phase: Waning Crescent; Moon at 26 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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ANZ453 Coastal Waters From Great Egg Inlet To Cape May Nj Out 20 Nm- 401 Am Edt Sat Aug 15 2020
.small craft advisory in effect through late Sunday night...
Today..NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. SWell mainly from the ne with a dominant period of 6 seconds.
Tonight..NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of showers in the late evening and early morning. Showers likely late. SWell mainly from the E with a dominant period of 7 seconds.
Sun..NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. A chance of tstms. Showers until late afternoon, then showers likely late. Vsby 1 to 3 nm. SWell mainly from the ne with a dominant period of 7 seconds.
Sun night..N winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Showers likely with a chance of tstms early in the evening, then a chance of showers in the late evening and overnight. Vsby 1 to 3 nm early in the evening. SWell mainly from the ne with a dominant period of 7 seconds.
Mon..N winds 10 to 15 kt with gusts up to 20 kt, becoming ne 5 to 10 kt in the afternoon. Seas 3 to 5 ft. A chance of showers in the morning.
Mon night..SE winds around 5 kt, becoming sw after midnight. Seas 3 to 4 ft.
Tue..W winds 5 to 10 kt. Seas 3 to 4 ft.
Tue night..W winds 5 to 10 kt. Seas around 3 ft.
Wed..N winds around 5 kt, becoming se in the afternoon. Seas around 3 ft.
Wed night..S winds 5 to 10 kt. Seas around 3 ft. A chance of tstms after midnight. Winds and seas higher in and near tstms.
ANZ400 401 Am Edt Sat Aug 15 2020
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. High pressure will nose into our region from the northeast today. Meanwhile, low pressure is forecast to develop in the carolinas before moving northeastward. The low is anticipated to pass off the virginia coast on Sunday morning, then it should move slowly out to sea. A cold front approaching from the northwest is expected to arrive on Monday night. The boundary is forecast to stall to our southeast for the middle and late parts of the new week.


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
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FXUS61 KPHI 150744 AFDPHI

Area Forecast Discussion National Weather Service Mount Holly NJ 344 AM EDT Sat Aug 15 2020

SYNOPSIS. High pressure will nose into our region from the northeast today. Meanwhile, low pressure is forecast to develop in the Carolinas before moving northeastward. The low is anticipated to pass off the Virginia coast on Sunday morning, then it should move slowly out to sea. A cold front approaching from the northwest is expected to arrive on Monday night. The boundary is forecast to stall to our southeast for the middle and late parts of the new week.

NEAR TERM /UNTIL 6 PM THIS EVENING/. For today, high pressure will remain across eastern Canada and try to nose its way down the east coast into the Mid-Atlantic region, while a cold front will remain to our south through the day. Meanwhile, the flow aloft will shift from a westerly direction, to more of a southwest flow by the afternoon. Several short wave/vorticity impulses will move across the area through the day as well. Despite these short waves/vorticity impulses, much of the day is expected to be mostly rain free as the high nosing down into the area will likely keep drier air in place. However, late in the afternoon there could be some showers developing for portions of our western and southern zones as moisture begins to increase as the flow shifts to the southwest.

SHORT TERM /6 PM THIS EVENING THROUGH 6 AM SUNDAY/. An area of low pressure will move along the frontal boundary to our south from the Carolinas, to near the mouth of the Chesapeake Bay by daybreak Sunday. As the low lifts northward, a surface trough may develop on the northern side of the low and move across our area overnight. As the low lifts northward and approaches our area overnight, moisture will be increasing north of the low, especially across eastern Maryland, Delaware, and southern New Jersey where PW values approach and exceed 2 inches. Enhanced lift will move across the area as well as there will be several short wave/vorticity impulses moving across the area. As these features move across the area overnight, rain is expected to spread across much of the area, with the heaviest precipitation across the southern areas where the greatest lift and higher moisture combination will be. There is not much in the way of instability, so we do not have thunderstorms in the forecast, although a few rumbles of thunder cannot be ruled out.

LONG TERM /SUNDAY THROUGH FRIDAY/. A mid level trough is forecast to slide eastward from the Great Lakes on Sunday, settling over the northeastern states for Monday, Tuesday and Wednesday. The feature is expected to lift to the northeast late in the week. The pattern will keep temperatures from getting excessively warm. Highs should favor the 70s on Sunday, and the 80s during the new week.

Surface low pressure is forecast to be centered near the mouth of Chesapeake Bay on Sunday morning. It is expected to drift northeastward to a point about 100 miles off the southern New Jersey coast on Sunday evening. The cloud and precipitation shield associated with the system is anticipated to affect our weather on Sunday. We are expecting a mostly cloudy sky along with rain showers. The rain may become moderate to heavy for a time in parts of northeastern Maryland, Delaware and southern New Jersey. Those areas may also experience a few rumbles of thunder. The potential for significant rainfall and thunder decreases in eastern Pennsylvania, and central and northern New Jersey, farther from the low.

As the low moves out to sea on Sunday night, the precipitation and clouds should follow.

A cold front is forecast to approach from the northwest on Monday and it will likely arrive in our region on Monday night. Scattered showers and thunderstorms are possible.

There remains some uncertainty as to how far the cold front will progress to our southeast before stalling. It appears as though relatively dry air will work its way into our region for Tuesday. However, the boundary may drift back toward us for Wednesday and Thursday, bringing a chance of showers and thunderstorms at that time.

AVIATION /08Z SATURDAY THROUGH WEDNESDAY/. The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.

Today . VFR conditions prevail through today, although clouds will thicken and lower through the day. Winds begin the day out of the northeast 5-10 knots, then become easterly during the day with gusts around 15-20 knots from I-95 south and east, before shifting to the southeast late in the afternoon. High confidence.

Tonight . VFR conditions start off during the evening hours, but ceilings will lower to MVFR later in the evening and overnight as rain begins to move into the area. IFR conditions are possible by daybreak for portions of southern New Jersey, Delaware, and Maryland as rain becomes heavier. Winds begin the evening out of the east to southeast around 5-10 knots, then shift to the northeast overnight around 5-10 knots.

Outlook .

Sunday . VFR/MVFR conditions with rain showers. IFR conditions are possible around KMIV and KACY where the rain may become heavy at times. Northeast wind around 10 knots. Medium confidence.

Sunday night . Conditions improving to VFR with showers ending. Northeast to north wind around 10 knots. Medium confidence.

Monday . Mainly VFR. A chance of afternoon showers and thunderstorms. Northwest wind 5 to 10 knots becoming southwest. Medium to high confidence.

Monday night . Mainly VFR. A chance of evening showers and thunderstorms. Southwest wind 5 to 10 knots becoming northwest. Medium to high confidence.

Tuesday . Mainly VFR. Northwest wind 5 to 10 knots. Medium to high confidence.

Tuesday night . Mainly VFR. Variable wind 6 knots or less. Medium to high confidence.

Wednesday . Mainly VFR. South wind 5 to 10 knots. Medium confidence.

MARINE. Today-Tonight . Small Craft Advisory remain in effect for the Atlantic Ocean coastal waters as seas are expected to increase to 5- 6 feet today and continue into tonight. Winds may also gust around 25 knots later today into tonight.

Outlook .

Sunday . A Small Craft Advisory is in effect for our ocean waters and for Delaware Bay. A northeast wind 15 to 25 knots with gusts up to 30 knots is expected.

Sunday night . A Small Craft Advisory is in effect for our ocean waters. A northeast wind 15 to 20 knots with gusts up to 25 knots is expected.

Monday . Wind speeds and gusts are forecast to fall below 25 knots. However, wave heights on our ocean waters may remain around 5 feet, especially in the morning.

Monday night through Wednesday . No marine headlines are anticipated.

Rip currents .

For today, there is a moderate risk for the development of dangerous rip currents. Northeasterly winds will be 15-20 mph with gusts to around 25 mph. Breaking waves should be 3 to 5 feet with a medium period swell from the southeast.

For Sunday, there is a high risk for the development of dangerous rip currents. Northeasterly winds continue 15-20 mph with gusts to around 25 mph. Breaking waves building to 4 to 6 feet are anticipated with a short to medium period mainly wind wave from the east.

TIDES/COASTAL FLOODING. The northeast flow along the coasts of New Jersey and Delaware this weekend will continue to cause water levels to build gradually. Astronomical tide heights will be on the increase as we approach Tuesday's new moon. The evening astronomical high tides are generally about a foot to a foot and a half higher than those in the morning.

Tidal departures were mainly in the +0.7 to +0.9 foot range this morning along our coast. With the expected gradual increase today, it continues to appear as though we will see spotty minor flooding with this evening's high tide. It should not be widespread enough to warrant a Coastal Flood Advisory.

As tidal departures rise even further, we may see a more extensive minor flooding event with Sunday evening's high tide. An advisory may become necessary as we get closer to that high tide cycle.

PHI WATCHES/WARNINGS/ADVISORIES. PA . None. NJ . None. DE . None. MD . None. MARINE . Small Craft Advisory until 6 AM EDT Monday for ANZ450>453. Small Craft Advisory from 8 AM this morning to 6 AM EDT Monday for ANZ454-455. Small Craft Advisory from 6 AM to 6 PM EDT Sunday for ANZ430- 431.



Synopsis . Iovino Near Term . Robertson Short Term . Robertson Long Term . Iovino Aviation . Iovino/Robertson Marine . Iovino/Robertson Tides/Coastal Flooding . Iovino


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ACYN4 - 8534720 - Atlantic City, NJ 20 mi57 min 72°F 74°F1014.7 hPa
CMAN4 - 8536110 - Cape May, NJ 20 mi57 min NNE 4.1 G 7 71°F 74°F1013.8 hPa
BRND1 - 8555889 - Brandywine Shoal Light, DE 25 mi57 min NE 13 G 16 1014.5 hPa
JCRN4 - Jacques Cousteau Reserve, NJ 28 mi57 min NW 1.9 69°F 1015 hPa65°F
LWSD1 - 8557380 - Lewes, DE 35 mi57 min NE 12 G 14 75°F 78°F1013.9 hPa
SJSN4 - 8537121 - Ship John Shoal, NJ 36 mi57 min 74°F 1015.1 hPa

Wind History for Cape May, NJ
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wildwood, Cape May County Airport, NJ15 mi31 minNNE 610.00 miFair69°F66°F90%1014.4 hPa
Atlantic City, Atlantic City International Airport, NJ21 mi33 minN 510.00 miFair67°F64°F91%1014.4 hPa
Millville, Millville Municipal Airport, NJ23 mi33 minN 010.00 miFair67°F62°F84%1014.3 hPa

Link to 5 minute data for KWWD

Wind History from WWD (wind in knots)
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1 day agoS3CalmCalmE5E4SE7SE7SE6S6S5SE6N6N8NE5NE3NE4NE5NE5NE5NE5NE5NE7NE7NE7
2 days agoCalmCalmS3SW5SW6SW5S6S6S8S12S15S10NW7N5S5S3N3SE3CalmS5SE4SE3S4SE3

Tide / Current Tables for Ludlam Bay, west side, New Jersey
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Ludlam Bay
Click for Map
Sat -- 12:17 AM EDT     0.69 feet Low Tide
Sat -- 02:13 AM EDT     Moonrise
Sat -- 05:55 AM EDT     3.48 feet High Tide
Sat -- 06:12 AM EDT     Sunrise
Sat -- 12:07 PM EDT     0.62 feet Low Tide
Sat -- 05:37 PM EDT     Moonset
Sat -- 06:10 PM EDT     4.42 feet High Tide
Sat -- 07:53 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.81.42.22.93.33.53.32.721.30.90.60.81.62.63.64.24.44.33.72.92.11.4

Tide / Current Tables for Dennis Creek, Route 47 bridge, Delaware Bay, New Jersey
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Dennis Creek
Click for Map
Sat -- 01:37 AM EDT     0.97 feet Low Tide
Sat -- 02:14 AM EDT     Moonrise
Sat -- 06:12 AM EDT     Sunrise
Sat -- 08:05 AM EDT     4.24 feet High Tide
Sat -- 01:24 PM EDT     0.70 feet Low Tide
Sat -- 05:37 PM EDT     Moonset
Sat -- 07:53 PM EDT     Sunset
Sat -- 08:36 PM EDT     5.80 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.81.111.31.92.73.444.243.42.41.40.80.81.32.13.24.25.25.75.85.24.1

Weather Map
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wmap_A
GEOS Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Philadelphia/Mount Holly, PA (4,6,7,8)
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Ground Weather Radar Station Philadelphia, PA
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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerous of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.