Monday, July13, 2020
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Marine Weather and Tides
Ocean 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 5:41AMSunset 8:26PM Monday July 13, 2020 11:05 PM EDT (03:05 UTC) Moonrise 12:52AMMoonset 1:52PM Illumination 38% Phase: Third Quarter Moon; Moon at 23 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- 1001 Pm Edt Mon Jul 13 2020
Overnight..W winds 5 to 10 kt. Seas 3 to 4 ft. SWell mainly from the S with a dominant period of 8 seconds.
Tue..NW winds 5 to 10 kt, becoming S in the afternoon. Seas 3 to 4 ft. SWell mainly from the S with a dominant period of 7 seconds.
Tue night..SW winds 5 to 10 kt, becoming nw after midnight. Seas around 3 ft. SWell mainly from the se with a dominant period of 7 seconds.
Wed..E winds around 10 kt. Seas around 3 ft. SWell mainly from the S with a dominant period of 7 seconds.
Wed night..SE winds around 10 kt. Seas around 3 ft.
Thu..SE winds 10 to 15 kt. Gusts up to 20 kt in the afternoon. Seas around 3 ft.
Thu night..S winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. A chance of showers in the evening, then a chance of tstms after midnight.
Fri..S winds 10 to 15 kt. Seas 3 to 4 ft. A chance of tstms in the morning, then a chance of showers in the afternoon.
Fri night..SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of tstms.
Sat..S winds around 10 kt. Seas around 3 ft in the morning, then 2 ft or less. A chance of tstms in the morning.
Sat night..S winds 5 to 10 kt. Seas 2 ft or less. Winds and seas higher in and near tstms.
ANZ400 1001 Pm Edt Mon Jul 13 2020
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. A weak cold front will continue moving out to sea tonight and Tuesday, with high pressure building in for midweek. A cold front associated with low pressure moving through the great lakes region will bring a renewed threat of showers and Thunderstorms later Thursday through Friday. High pressure building in from the midwest should then bring increasingly warmer and more humid weather for the end of the week.


7 Day Forecast for Marine Location Near Ocean City, NJ
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location: 39.28, -74.58     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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FXUS61 KPHI 140143 AFDPHI

Area Forecast Discussion National Weather Service Mount Holly NJ 943 PM EDT Mon Jul 13 2020

SYNOPSIS. A weak cold front will continue moving out to sea tonight and Tuesday, with high pressure building in for midweek. A cold front associated with low pressure moving through the Great Lakes region will bring a renewed threat of showers and thunderstorms later Thursday through Friday. High pressure building in from the midwest should then bring increasingly warmer and more humid weather for the end of the week.

NEAR TERM /UNTIL 6 AM TUESDAY MORNING/. A weak cold front lies just offshore with surface high pressure centered over the Great Lakes this evening. Meanwhile, a weak mid-level trough will pivot through the region along with several strong shortwaves through the overnight and into tomorrow. A few light thunderstorms moved across the Chesapeake late this afternoon but have since dissipated with sunset. With a drying north to northwest flow, surface dewpoints are lowering across the region, falling from the upper into the lower 60s this evening. A few mid-level clouds linger across portions of Delmarva and South Jersey in relation to the since- dissipates thunderstorm that moved into the Eastern Shore earlier this evening.

High pressure continues to build east tonight. Skies clear out with departure of trough, and northwest winds become nearly calm. Lows tonight will be in the 60s.

SHORT TERM /6 AM TUESDAY MORNING THROUGH 6 PM TUESDAY/. Surface high pressure continues to build east and will be centered over western New York and western Pennsylvania in the afternoon. Some troughiness will lie over the Northeast, but the base of the trough will be offshore. Some shortwaves will dive into the base of the trough, moving through northern New Jersey.

With northwest flow over the area, conditions continue to dry out due to the downsloping flow. A pleasant day expected, as surface dewpoints fall into the low to mid 50s, with the lowest dewpoints across the Pine Barrens of New Jersey. Highs generally in the mid to upper 80s, yet some places may touch 90 along and east of the urban corridor.

A backdoor cold front will also approach from the north late, and combined with those shortwaves, some showers and thunderstorms may develop well north of the region. Cannot rule out some more showers south of Delmarva. Will keep the local area dry, however, as dry conditions should prevent showers from developing.

A pleasant summertime day with low humidity.

LONG TERM /TUESDAY NIGHT THROUGH MONDAY/. A mid-level trough and its associated axis will be exiting the coast late Tuesday afternoon and evening, taking any residual precipitation in the northern portion of the CWA with it. Then mid- level and surface ridging will provide benign weather for Tuesday and Wednesday. With an onshore flow and modest dew point temperatures for this time of year, both air temperature and relative humidity should remain fairly comfortable. Then another frontal boundary associated with a low pressure system moving through the Great Lakes region is expected to bring the chance of showers and thunderstorms to the area late Thursday afternoon through Friday. This front may sag far enough south of the region to provide benign weather during the upcoming weekend, but the combination of a mid-level ridge and southerly flow at the surface will produce increasing warmth and humidity into early next week. An impulse developing along this front may touch off a few showers and thunderstorms, mainly south of the Mason-Dixon line, Sunday night, and scattered showers and thunderstorms are possible again on Monday given an increasingly unstable airmass.

AVIATION /02Z TUESDAY THROUGH SATURDAY/. The following discussion is for KPHL, KPNE, KTTN, KABE, KRDG, KILG, KMIV, KACY and surrounding areas.

Tonight . VFR. NW winds less than 10 kt early, diminishing to less than 5 kt late. A slight chance of a shower at Wilmington through 00Z. High confidence.

Tuesday . VFR. NW winds 5-10 kt. High confidence.

Outlook . Tuesday night through Wednesday night . Mainly VFR. Northwest winds 5 to 10 kt becoming N, then E or SE at the same speeds late Wednesday and Wednesday night. Moderate confidence.

Thursday and Thursday night . Mainly VFR, though chances for showers and storms increase late Thursday afternoon. Brief restrictions possible in their proximity. Southeast winds 5 to 15 kt becoming southerly Thursday night. Moderate confidence.

Friday . Mainly VFR, though chances for showers/storms continue, with brief restrictions possible. South to southwest winds 5 to 15 kt. Low confidence.

Friday Night and Saturday . Mainly VFR. South to southwest winds 5 to 10 kt. Low confidence.

MARINE. Tonight . Ocean seas around 4 feet, diminishing to around 3 feet late. SW winds less than 10 kt.

Tuesday . Sub-SCA conditions with 3 feet ocean seas and S-SW winds 10- 15 kt.

Outlook . Tuesday night through Wednesday night . Sub-advisory winds/seas and fair weather expected.

Thursday through Friday . Sub-advisory winds/seas expected. A chance of showers/storms, with locally higher waves and gusty winds in their proximity.

Friday night and Saturday . Sub-advisory winds/seas expected.

Rip Currents .

Breaking waves are forecast to be 2 feet or less with a medium period southeast swell along the coasts of Delaware and New Jersey on Tuesday. A light and variable wind in the morning is forecast to settle into the south around 5 to 10 MPH in the afternoon. The risk for the development of dangerous rip currents is expected to be low on Tuesday.

The wave and swell conditions are anticipated to remain nearly the same for Wednesday. However, the wind is forecast to become easterly around 10 MPH. The low risk of rip currents is expected to continue.

EQUIPMENT. The NOAA Weather Radio All Hazards broadcast from Hibernia Park, PA (WNG704) remains off the air until further notice due to damage to the antenna during the June 3 derecho.

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

Synopsis . Miketta Near Term . Davis/MPS Short Term . MPS Long Term . Miketta Aviation . Davis/Miketta/MPS Marine . Miketta/MPS Equipment . WFO PHI


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ACYN4 - 8534720 - Atlantic City, NJ 10 mi156 min 71°F
JCRN4 - Jacques Cousteau Reserve, NJ 19 mi36 min WSW 1 75°F 1012 hPa67°F
CMAN4 - 8536110 - Cape May, NJ 30 mi156 min 79°F
LWSD1 - 8557380 - Lewes, DE 45 mi156 min 78°F

Wind History for Cape May, NJ
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Atlantic City, Atlantic City International Airport, NJ12 mi72 minSW 310.00 miOvercast81°F64°F57%1011.6 hPa

Link to 5 minute data for KACY

Wind History from ACY (wind in knots)
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Last 24hrS6S6W4N5N3CalmCalmCalmNW5NW5W5NW7W7NW9NW10NW9NW7W6NW7W9W8W6CalmSW3
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Tide / Current Tables for Ocean City, 9th Street Bridge, New Jersey
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Ocean City
Click for Map
Mon -- 12:51 AM EDT     Moonrise
Mon -- 02:38 AM EDT     3.41 feet High Tide
Mon -- 05:43 AM EDT     Sunrise
Mon -- 09:02 AM EDT     0.65 feet Low Tide
Mon -- 01:52 PM EDT     Moonset
Mon -- 03:14 PM EDT     3.60 feet High Tide
Mon -- 08:24 PM EDT     Sunset
Mon -- 09:47 PM EDT     1.03 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.533.33.432.41.71.20.80.60.81.42.12.83.33.63.532.41.91.51.111.3

Tide / Current Tables for Middle Thorofare, Ocean Drive bridge, New Jersey
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Middle Thorofare
Click for Map
Mon -- 12:52 AM EDT     Moonrise
Mon -- 02:30 AM EDT     3.52 feet High Tide
Mon -- 05:43 AM EDT     Sunrise
Mon -- 08:37 AM EDT     0.67 feet Low Tide
Mon -- 01:52 PM EDT     Moonset
Mon -- 03:05 PM EDT     3.73 feet High Tide
Mon -- 08:24 PM EDT     Sunset
Mon -- 09:28 PM EDT     1.10 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.73.23.53.532.31.510.70.711.72.43.13.53.73.532.41.81.41.11.11.5

Weather Map
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wmap_A
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.
Link to Loop



Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Philadelphia/Mount Holly, PA (23,6,7,8)
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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.