Saturday, August8, 2020
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Marine Weather and Tides
Northfield, 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 6:03AMSunset 8:03PM Saturday August 8, 2020 1:49 AM EDT (05:49 UTC) Moonrise 10:54PMMoonset 10:44AM Illumination 82% Phase: Waning Gibbous; Moon at 19 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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ANZ452 Coastal Waters From Little Egg Inlet To Great Egg Inlet Nj Out 20 Nm- 101 Am Edt Sat Aug 8 2020
Rest of tonight..SE winds around 5 kt. Seas 2 ft or less. A chance of tstms, then a chance of showers late. Vsby 1 to 3 nm. SWell mainly from the se with a dominant period of 7 seconds.
Sat..E winds around 5 kt. Seas around 3 ft. SWell mainly from the se with a dominant period of 10 seconds.
Sat night..S winds around 5 kt, becoming sw late. Seas 2 ft or less. SWell mainly from the se with a dominant period of 10 seconds.
Sun..E winds around 5 kt, becoming S in the afternoon. Seas 2 ft or less. SWell mainly from the se with a dominant period of 9 seconds.
Sun night..SW winds 5 to 10 kt. Seas 2 ft or less.
Mon..SW winds 5 to 10 kt. Seas 2 ft or less.
Mon night..SW winds around 10 kt. Seas 2 ft or less.
Tue..S winds 10 to 15 kt. Seas 2 ft or less.
Tue night..S winds 10 to 15 kt. Seas around 3 ft in the evening, then 2 ft or less.
Wed..S winds 5 to 10 kt. Seas 2 ft or less.
Wed night..SW winds 5 to 10 kt. Seas 2 ft or less. Winds and seas higher in and near tstms.
ANZ400 101 Am Edt Sat Aug 8 2020
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. A weak stationary front will linger across the northern mid- atlantic before washing out Saturday. On Sunday a weak cold front will move through the region. High pressure will build into the area Sunday behind the front, before progressing offshore early next week. A cold front will approach new england around the middle of next week.


7 Day Forecast for Marine Location Near Northfield, NJ
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location: 39.35, -74.54     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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FXUS61 KPHI 080347 AFDPHI

Area Forecast Discussion National Weather Service Mount Holly NJ 1147 PM EDT Fri Aug 7 2020

SYNOPSIS. A weak stationary front will linger across the northern Mid- Atlantic before washing out Saturday. On Sunday a weak cold front will move through the region. High pressure will build into the area Sunday behind the front, before progressing offshore early next week. A cold front will approach New England around the middle of next week.

NEAR TERM /UNTIL 6 AM SATURDAY MORNING/.

Have cancelled the Flash Flood Watch for southern areas with the midnight package, as storms are both weakening in intensity while also slowly sagging southwards (although some areas in southern Sussex Delaware could still see a good soaking). Otherwise only update was to cut PoPs in the northern two thirds of the CWA based on current trends.

The next big concern tonight will be low stratus and fog development. Near calm surface winds and plentiful low level moisture combined with a saturated ground should yield areas of fog. The trough approaching from the west should create enough turbulence to prevent widespread dense fog, but cannot rule it out. Overnight lows will be mainly in the 60s to around 70.

SHORT TERM /6 AM SATURDAY MORNING THROUGH SUNDAY NIGHT/. For Saturday, a progressive upper trough centered near the coast early in the day will move east with time with weak shortwave ridging approaching by late day. This should mean an overall drier day but there will still be significant low clouds and some fog around to start the day. And because low level winds will be quite light and there is so much moisture around, this could take some time to mix out. The upshot is that the morning should be mostly cloudy before some sun develops in the afternoon. However diurnal heating along with the continuing abundant moisture around could lead to some isolated to scattered afternoon storms developing. This won't be a washout though so it should be rain-free most of the time and many areas won't even see anything. It will still be fairly humid with lows mostly in the low to mid 80s.

LONG TERM /MONDAY THROUGH FRIDAY/. Saturday night into Sunday the mid-level disturbance from Friday will be finally exiting New England with lower PWAT air moving across the region. As the wave exits, brief subsidence will take shape across the area as surface high pressure centers over the Ohio Valley. The GFS and ECMWF does have a weak upper level disturbance traversing the Canadian Maritimes, but the system appears to far north, with to much dry air overhead to produce anything in the way of precipitation. Temperatures Sunday will likely be in the upper 80s to around 90 degrees as the dry air mass will allow temperatures to over perform.

Monday temperatures will remain warm as mid-level heights rise across the region and PWATs remain around 1.40". Tuesday into Wednesday an upper level low will head east across central Canada with an upper level disturbance approaching from the west. Overall, guidance has slowed down a bit from this time yesterday, with delaying the return of rain chances until Tuesday. An upper level wave will approach the area from the west Wednesday afternoon with significant uncertainty on the track and strength of the wave. Either way, the chance of showers and thunderstorms returns to the region Tuesday and Wednesday.

Wednesday into Thursday a cold front will approach New England with models showing a wide spread here. The GFS and CMC are slightly more amplified and slower with the upper level low over the Hudson Bay while the ECMWF is less amplified and more progressive. The GFS stalls the front across central/ southern NY, while the ECMWF keeps the front stalled across northern NY. For us this means an enhanced chance of showers and thunderstorms Wednesday through Friday.

AVIATION /04Z SATURDAY THROUGH WEDNESDAY/. The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.

Tonight . A mix of VFR and MVFR CIGs will likely give way to generally IFR conditions in fog/stratus later tonight into Saturday morning. Light NE winds becoming light and variable or calm. Moderate confidence.

Saturday-Saturday night . Mainly VFR, but areas of MVFR possible especially near MIV and ACY during the day Saturday. Slight chance of a rain shower but tstms not expected. Winds mainly light and variable. Moderate confidence.

Outlook . Sunday-Sunday night . VFR. Light and variable wind becoming SW at 5 to 10 kt, except near the coast where an afternoon sea breeze is likely. High confidence.

Monday . Mainly VFR with dry conditions. South winds 5 to 15 kts. High confidence.

Tuesday and Wednesday . A chance of showers and thunderstorms during the afternoon and evening hours. South to southwest winds 5 to 15 kt. Moderate confidence.

MARINE. Through tonight . Sub-SCA conditions expected. Seas 2 to 3 ft. A couple of wind shifts possible but easterly directions will be prevailing and speeds mainly 10 kt or less. Scattered tstms are possible for most of this period with locally higher winds and seas possible in any tstms.

Outlook . Saturday-Saturday night . Sub-SCA conditions expected. Seas 2 to 3 ft. Winds mainly NE at 5 to 10 kt becoming light and variable overnight.

Monday . Sub-advisory winds/seas expected.

Tuesday into Wednesday . Sub-advisory winds/seas expected with a slight chance of showers and storms.

Rip Currents . Light onshore flow Saturday through Sunday, along with 2-3 ft seas and a swell period of around 6-8 seconds will result in a low risk for the development of dangerous and lift threatening rip currents.

EQUIPMENT. The NOAA Weather Radio All-Hazards broadcast from Hibernia Park Pennsylvania (Station WNG-704) remains off the air.

The NOAA Weather Radio All-Hazards broadcast from Franklin Township New Jersey (Station KZZ-31 ) is off the air.

PHI WATCHES/WARNINGS/ADVISORIES. PA . None. NJ . None. DE . None. MD . None. MARINE . None.

Synopsis . Haines Near Term . Carr/Fitzsimmons/MPS Short Term . Fitzsimmons Long Term . Haines Aviation . Carr/Fitzsimmons/Haines/MPS Marine . Fitzsimmons/Haines Equipment . WFO PHI


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ACYN4 - 8534720 - Atlantic City, NJ 6 mi49 min 71°F 69°F1020 hPa (-0.8)
JCRN4 - Jacques Cousteau Reserve, NJ 13 mi79 min WNW 1.9 71°F 1020 hPa70°F
CMAN4 - 8536110 - Cape May, NJ 35 mi49 min SE 4.1 G 5.1 68°F 72°F1019 hPa (-1.9)
BRND1 - 8555889 - Brandywine Shoal Light, DE 39 mi49 min SSW 8.9 G 9.9 1019.4 hPa (-1.1)
SJSN4 - 8537121 - Ship John Shoal, NJ 44 mi49 min 72°F 1020.2 hPa (-0.0)

Wind History for Cape May, NJ
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Atlantic City, Atlantic City International Airport, NJ8 mi55 minNW 610.00 miOvercast71°F68°F90%1019.8 hPa

Link to 5 minute data for KACY

Wind History from ACY (wind in knots)
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Last 24hrE4CalmCalmCalmE4NW4E3NE4N5N7E8E11E8E9NE10E11E8E8NE7NW14
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1 day agoS4N3CalmE3NE4N9--N7NE9E10E10E9E12E10E7E9E7E5E4CalmE4E3E7E5
2 days agoW5SW3S4CalmCalmCalmCalmCalmCalm4--W7W8W36W4W8NW7W4CalmCalmCalmS4Calm

Tide / Current Tables for Dock Thorofare, Risley Channel, New Jersey
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Dock Thorofare
Click for Map
Sat -- 06:04 AM EDT     Sunrise
Sat -- 06:07 AM EDT     0.25 feet Low Tide
Sat -- 10:44 AM EDT     Moonset
Sat -- 12:30 PM EDT     3.96 feet High Tide
Sat -- 06:26 PM EDT     0.79 feet Low Tide
Sat -- 08:02 PM EDT     Sunset
Sat -- 10:53 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.243.22.21.30.60.30.51.22.133.53.93.93.42.61.81.20.80.91.42.233.5

Tide / Current Tables for Atlantic City (Steel Pier), New Jersey
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Atlantic City (Steel Pier)
Click for Map
Sat -- 05:22 AM EDT     0.41 feet Low Tide
Sat -- 06:04 AM EDT     Sunrise
Sat -- 10:43 AM EDT     Moonset
Sat -- 11:31 AM EDT     3.99 feet High Tide
Sat -- 05:35 PM EDT     0.85 feet Low Tide
Sat -- 08:01 PM EDT     Sunset
Sat -- 10:52 PM EDT     Moonrise
Sat -- 11:43 PM EDT     4.18 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.23.62.61.60.90.40.51.11.92.83.53.93.93.52.821.30.90.91.322.93.64.1

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 (1,6,7,8)
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Ground Weather Radar Station Philadelphia, PA
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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.