Monday, February24, 2020
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Marine Weather and Tides
Woodbine, 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 6:39AMSunset 5:47PM Monday February 24, 2020 4:16 PM EST (21:16 UTC) Moonrise 8:30AMMoonset 7:48PM Illumination 2% Phase: Waxing Crescent; Moon at 1 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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ANZ431 Delaware Bay Waters South Of East Point Nj To Slaughter Beach De- 316 Pm Est Mon Feb 24 2020
Tonight..S winds 5 to 10 kt. Waves 2 ft or less. A slight chance of rain late this evening. A chance of rain after midnight, then rain likely late.
Tue..E winds 5 to 10 kt. Waves 2 ft or less. Rain. Patchy fog in the afternoon. Vsby 1 to 3 nm early in the morning, then 1 to 3 nm in the afternoon.
Tue night..NE winds around 5 kt. Waves 2 ft or less. A chance of rain early in the evening. Areas of drizzle. Areas of fog. Vsby 1 to 3 nm.
Wed..E winds 5 to 10 kt. Waves 2 ft or less. Areas of fog until late afternoon. Areas of drizzle until late afternoon. A chance of showers late in the morning, then a chance of rain in the afternoon. Vsby 1 to 3 nm until late afternoon.
Wed night..S winds around 10 kt, becoming W 15 to 20 kt after midnight. Gusts up to 25 kt. Waves around 3 ft. Rain, mainly in the evening.
Thu..W winds 20 to 25 kt with gusts up to 30 kt. Waves 3 to 4 ft.
Thu night..W winds around 20 kt with gusts up to 30 kt. Waves around 3 ft.
Fri..W winds 15 to 20 kt with gusts up to 25 kt. Waves around 3 ft.
Fri night..W winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Gusts up to 25 kt. Waves around 3 ft in the evening, then 2 ft or less.
Sat..W winds 15 to 20 kt with gusts up to 25 kt. Waves 2 ft or less, then around 3 ft in the afternoon.
Sat night..NW winds 15 to 20 kt with gusts up to 25 kt. Waves around 3 ft.
ANZ400 316 Pm Est Mon Feb 24 2020
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. A warm front will approach the region tonight but will stall over or south of the area Tuesday and into Wednesday. Multiple weak waves of low pressure will then track along the stalled front. A stronger low will track through the great lakes Wednesday night and into Thursday, pulling a cold front through the region by early Thursday. Upper level troughing and northwest flow will then be in place from Thursday through the weekend with high pressure likely building in for the beginning of next week.


7 Day Forecast for Marine Location Near Woodbine , NJ
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location: 39.18, -74.85     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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FXUS61 KPHI 242031 AFDPHI

Area Forecast Discussion National Weather Service Mount Holly NJ 331 PM EST Mon Feb 24 2020

SYNOPSIS. A warm front will approach the region tonight but will stall over or south of the area Tuesday and into Wednesday. Multiple weak waves of low pressure will then track along the stalled front. A stronger low will track through the Great Lakes Wednesday night and into Thursday, pulling a cold front through the region by early Thursday. Upper level troughing and northwest flow will then be in place from Thursday through the weekend with high pressure likely building in for the beginning of next week.

NEAR TERM /UNTIL 6 AM TUESDAY MORNING/. Low pressure over the Midwest will move into the Great Lakes tonight, and a warm front extending out ahead of it will lift north into the Mid-Atlantic. Clouds across the region will lower and thicken this evening, and then skies become mostly cloudy as the warm front approaches.

Weak low pressure looks to develop over the Mid-Atlantic, and approaches Delmarva by daybreak Tuesday. However, it will take some time for the atmosphere to become moist enough to support rain, so it may not be until after midnight for rain to move into Delmarva, the Delaware valley, and southern new Jersey. Will carry chance PoPs for Philly north, and slight chance PoPs in far northern New Jersey, but any precip north of I-195 will be, at most, a couple of hundredths of an inch, while as much as 1/10" QPF possible for Delmarva.

SHORT TERM /6 AM TUESDAY MORNING THROUGH 6 PM TUESDAY/. Weak low pressure tracks east of Delmarva Tuesday morning, and then the primary low moves from the Great Lakes and Ohio Valley east into the Appalachians. the warm front makes some headway to the north, generally through southern portions of Delmarva, but not much farther north than that.

Waves of rain lift north out ahead of the low through the region from south to north during the day. The clouds and the rain will make it some 10 degrees cooler on Tuesday than on Monday, with highs topping off in the 40s to low 50s.

LONG TERM /TUESDAY NIGHT THROUGH MONDAY/. Overview .

Some modest changes to the large scale pattern this week as the upper level pattern at least temporarily turns a little less progressive and longwave troughing sets up over the East for a few days. To get there, we'll deal with one weather system for the early part of the period, which will be another in a long line of lows that have tracked over or west of the region this winter. A trough digging into the Plains and Midwest will spur low pressure development over the Midwest on Tuesday night and into Wednesday. That low will track northeast, with some degree of coastal redevelopment likely towards Wednesday night. The storm system will depart by Thursday, and that is when things change up a little as the longwave upper level trough moves overhead, bringing cooler weather. In a general sense, this is really just a continuation of the warm, then wet, then (briefly) cold pattern that has dominated the winter. The main difference this time is that the colder than normal air will stick around a couple days longer. However, by next weekend and into the following week indications are the prevailing pattern will return as the trough shifts away and the Southeast ridge rebuilds under a continued +AO/+NAO regime.

Dailies .

Tuesday night . With little dynamic forcing, much of Tuesday night will probably be spent in a lull between initial overrunning precip from during the day on Tuesday and the impending second round of precip from the main storm system later on Wednesday. It will be an unseasonably warm night, and there will probably be a lot of low clouds and drizzle or light showers around. Have some concern for fog potential and will monitor this in case it becomes dense or widespread.

Wednesday-Wednesday night . The lull in steady rain will likely continue into Wednesday morning. In fact, the recent trend has been a slower advance of steady rainfall such that much of the day Wednesday should involve more in the way of continued drizzle and light showers than steady rain. This could also yield continued fog concerns with a low level inversion in place. Eventually, the main precip shield will reach the area. Still some questions as to what exactly the structure of this storm will look like. Most guidance is indicating a double barreled appearance as the primary low tracks over the eastern Great Lakes while a coastal wave attempts to develop close to overhead of our region. Trends today are definitely a little more robust on QPF with the main part of the system as models are showing an intense FGEN band lifting through, especially in the western half of the CWA. Further east, there is still some potential for dry slotting to be an issue. Within the FGEN band, a rumble of thunder will be possible but the low level inversion will preclude any severe threat even if we do get thunder. The heavy band looks progressive enough, and that combined with recent dryness should negate any hydro concerns. Locally over an inch of rain is possible in the northwestern zones, otherwise mainly 0.5-0.75 inches. Looks like an all rain event though may end as a bit of snow in the Poconos depending on the track and structure of the low, potentially with some light accumulations if steady precip holds on until the cooler air starts to filter in.

Thursday . Thursday is the transition day as low pressure departs into Canada and a cold advection regime develops. There could be some lingering rain or snow showers up north on Thursday morning, but the trend will be for drying out in the westerly flow. Breezy conditions expected, but safely below wind advisory levels based on current projections. With strong CAA ongoing, temperatures won't rise much off the morning lows, mainly low to mid 40s for highs.

Thursday night-Sunday . A wintry feel as the longwave trough axis slowly moves over the region before starting to shift off to the east later on Sunday. In terms of temperatures, we will be quite a bit below normal, though it will not be especially brutal given warming climo normals and winds not looking overly strong. 850mb temperatures range from -10C to -15C for much of this period, as much as 20C below normal for this time of year. The result will be highs mainly in the mid 30s to low 40s and lows in the upper teens and 20s throughout this stretch. For precipitation chances, multiple shortwave disturbances will race through the broader trough. These look mainly innocuous as they are fast moving and moisture is limited. Will have to watch one particular disturbance towards Saturday as some guidance suggests it could bring some snow showers or potentially even try to induce offshore cyclogenesis with some wrap-around snow. Kept a dry forecast for Saturday for now as the signal is not overly strong, but we'll continue to watch. Otherwise, dry weather is expected for the late week and weekend period. We will likely start a warm-up by early next week as the Southeast ridge rebuilds.

AVIATION /21Z MONDAY THROUGH SATURDAY/. The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.

Rest of this afternoon . VFR with a ceiling between 8,000-20,000 feet. Light and variable winds to southerly 5-9 knots. High confidence.

Tonight . VFR ceilings lower to MVFR/IFR near daybreak, however probably remaining VFR from about ABE to TTN northward. Some light rain arrives near 12z. Light and variable winds overall. Low confidence on the timing of the sub-VFR ceilings.

Tuesday . Any VFR ceilings lower to MVFR/IFR with some rain at times. MVFR/IFR visibilities at times due to periods of rain and fog. East-northeast winds less than 10 knots. Moderate confidence.

Outlook .

Tuesday night-Wednesday night . Mainly IFR or lower expected due to fog, low clouds, and rain. East or east-northeast winds of 5 to 10 kt Tuesday night into Wednesday. A shift to southeast then southwest is expected Wednesday night with gusts to 20 kt possible late Wednesday night. High confidence in prevailing IFR conditions throughout this period.

Thursday-Thursday night . Lingering sub-VFR possible during the morning especially north of PHL, but trend will be for improving conditions and mainly VFR for most of the day. Westerly winds 15 to 20 kt with gusts to 30 kt, gradually diminishing overnight. Moderate confidence.

Friday-Friday night . Mainly VFR. Westerly wind 10 to 15 kt with gusts to 25 kt. High confidence.

MARINE. Sub-Small Craft Advisory conditions on tap tonight and Tuesday with a light pressure gradient over the waters. South winds 10-15 kt with gusts up to 20 kt this evening will become SE less than 10 kt by daybreak Tuesday. East winds increase to 10-15 kt during the day Tuesday. Seas 2-4 feet. VSBY restrictions in rain and fog late tonight and Tuesday.

Outlook .

Tuesday night . Sub-SCA conditions with seas 3 to 4 ft and NE winds around 10 to 15 kt. Areas of fog possible.

Wednesday . Sub-SCA conditions may hold through much of the day, though seas could approach 5 ft by afternoon and evening. East- northeast wind of 10 to 15 kt. Areas of fog possible.

Wednesday night-Friday . SCA conditions likely for most or all of this period. Seas will build to 5 ft by early Wednesday night and remain 4 to 6 ft through Friday. Gusty westerly winds will develop Wednesday night and continue through Friday with 25 to 30 kt gusts likely. Cannot rule out gale force conditions on Thursday though should stay mainly below gale levels.

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

Synopsis . O'Brien Near Term . MPS Short Term . MPS Long Term . O'Brien Aviation . Gorse/O'Brien Marine . MPS/O'Brien


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CMAN4 - 8536110 - Cape May, NJ 16 mi46 min S 11 G 16 51°F 43°F1014.9 hPa
BRND1 - 8555889 - Brandywine Shoal Light, DE 19 mi52 min SSW 16 G 17 1015.4 hPa
ACYN4 - 8534720 - Atlantic City, NJ 26 mi46 min 46°F 43°F1016.4 hPa
SJSN4 - 8537121 - Ship John Shoal, NJ 29 mi46 min ESE 11 G 11 44°F 1015 hPa
LWSD1 - 8557380 - Lewes, DE 31 mi46 min WSW 14 G 21 58°F 43°F1015.4 hPa
JCRN4 - Jacques Cousteau Reserve, NJ 32 mi46 min SSE 8.9 55°F 1016 hPa32°F
RDYD1 - 8551910 - Reedy Point, DE 46 mi52 min 54°F 42°F1014.1 hPa
DELD1 - 8551762 - Delaware City, DE 48 mi46 min S 4.1 G 6 55°F 47°F1014.6 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, NJ12 mi20 minS 910.00 miA Few Clouds54°F37°F55%1015.5 hPa
Millville, Millville Municipal Airport, NJ18 mi22 minS 610.00 miFair56°F28°F34%1014.7 hPa
Atlantic City, Atlantic City International Airport, NJ24 mi22 minSSE 710.00 miFair53°F33°F47%1015.2 hPa

Link to 5 minute data for KWWD

Wind History from WWD (wind in knots)
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Last 24hrSE9SE7S6S8S6S5S6S7S8S7S6S7S6SW3SW3SW5SW6SW6SW4CalmSE5SE9S9S9
1 day agoW9W5SW9SW8SW10SW10SW10SW10SW9SW7W5CalmCalmCalmCalmCalm--33SE7S8SE8SE8S9
2 days agoNW8NW73CalmNW3NW3CalmCalmCalmW4W7W8W7W8W5W6W9W12W11
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Tide / Current Tables for Dennis Creek, 2.5 n.mi. above entrance, Delaware Bay, New Jersey
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Dennis Creek
Click for Map
Mon -- 03:59 AM EST     -0.27 feet Low Tide
Mon -- 06:39 AM EST     Sunrise
Mon -- 07:30 AM EST     Moonrise
Mon -- 10:06 AM EST     5.73 feet High Tide
Mon -- 04:37 PM EST     -0.07 feet Low Tide
Mon -- 05:45 PM EST     Sunset
Mon -- 06:47 PM EST     Moonset
Mon -- 10:20 PM EST     4.84 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.52.210.1-0.30.11.22.64.15.35.75.54.73.420.80.1-00.61.73.14.24.84.7

Tide / Current Tables for Townsend Sound, Townsends Inlet, New Jersey
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map
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GEOS Local Image of Mid-Atlantic    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 (16,3,4,5)
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Ground Weather Radar Station Dover AFB, DE
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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.