Marine Weather and Tides
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
|Sunrise 6:05AM||Sunset 7:51PM||Wednesday April 25, 2018 7:55 PM EDT (23:55 UTC)||Moonrise 2:16PM||Moonset 3:01AM||Illumination 81%|
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|ANZ430 Delaware Bay Waters North Of East Point Nj To Slaughter Beach De- 605 Pm Edt Wed Apr 25 2018 |
Tonight..SW winds around 5 kt, becoming W with gusts up to 20 kt late this evening and early morning, then becoming nw 10 to 15 kt with gusts up to 20 kt late. Waves 2 ft or less, then around 3 ft late. Areas of fog early this evening. A chance of showers, mainly this evening with vsby 1 nm or less.
Thu..NW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt late. Waves around 3 ft early in the morning, then 2 ft or less.
Thu night..SW winds 5 to 10 kt, becoming se late. Waves 2 ft or less. A chance of showers after midnight. Showers likely late.
Fri..SE winds 5 to 10 kt, becoming S late. Waves 2 ft or less. Showers until late afternoon, then a chance of showers late.
Fri night..SW winds around 5 kt, becoming W after midnight. Waves 2 ft or less. A chance of showers in the evening.
Sat..SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Waves 2 ft or less.
Sat night..NW winds 10 to 15 kt with gusts up to 20 kt. Waves 2 ft or less.
Sun..NW winds around 15 kt. Waves around 3 ft.
Sun night..NW winds 10 to 15 kt. Waves around 3 ft in the evening, then 2 ft or less.
Mon..NW winds 10 to 15 kt. Waves 2 ft or less.
Mon night..W winds around 10 kt. Waves 2 ft or less.
|ANZ400 605 Pm Edt Wed Apr 25 2018 |
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. An area of low pressure will move across our area this evening, then move toward new england tonight as it combines with another low pressure. Very weak high pressure tries to build into the region late Thursday, before another low pressure moves northward across the mid atlantic region Friday. This low will combine with another low as it moves across new england Saturday before moving into eastern canada. A cold front is expected Saturday, with additional surface troughs Sunday into Monday. High pressure across the great lakes and ohio valley Sunday will build to our south Monday.
7 Day Forecast for Marine Location Near Millbourne , PAHourly EDIT Help
Area Discussion for - Philadelphia/Mount Holly, PA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus61 kphi 252332|
area forecast discussion
national weather service mount holly nj
732 pm edt Wed apr 25 2018
An area of low pressure will move across our area this evening,
then move toward new england tonight as it combines with
another low pressure. Very weak high pressure tries to build
into the region late Thursday, before another low pressure moves
northward across the mid atlantic region Friday. This low will
combine with another low as it moves across new england Saturday
before moving into eastern canada. A cold front is expected
Saturday, with additional surface troughs Sunday into Monday.
High pressure across the great lakes and ohio valley Sunday will
build to our south Monday, and remain to our south through
Near term until 6 am Thursday morning
6 pm update... Based on current web cams and satellite, we have
extended the dense fog advisory along coastal nj until midnight
after which time conditions should improve as a cold front moves
through. Otherwise, just some mostly minor adjustments to pop,
t td, and sky grids based on current conditions and trends.
Previous discussion... Low pressure is currently located over
delmarva and will continue to move to the north and east through
our area tonight. The associated upper trough will rotate
through the area through the overnight hours. A good amount of
energy associated with the upper trough will allow for the
continuation of showers late tonight with majority of the rain
ending between midnight and 2 am. Even though the system will
move off to the north of the area overnight, low clouds and fog
will be slower to clear as plenty are likely to remain through
the early morning hours, especially across the northern parts of
Precipitation is spotty this afternoon. Some isolated heavier
showers, with embedded thunderstorms, remain possible across
southern delaware and into southern new jersey as the Sun has
broken out across those areas this afternoon. We should lose the
convective potential as we continue to head towards sunset.
Some light rain was moving northward across northern new jersey
with just some spotty showers or drizzle remaining. Areas to the
north and west of philadelphia continue to see areas of fog
with varying visibilities.
We have taken down the dense fog advisory for the delaware
coast as the web cams show that things have cleared up nicely
there this afternoon. Dense fog advisory remains in place along
the new jersey coast through 7pm. Areas along the new jersey
coast show considerable fog this afternoon on area web cams.
Overnight lows will be mild and in the 40s to around 50 across
Short term 6 am Thursday morning through 6 pm Thursday
Thursday brings a brief return to high pressure and fair
weather across our area.
The day may start off a little cloudy, especially across
northern areas, but we should see plenty of sunshine through the
day. Winds will be out of the west to northwest around 10 to 15
Temperatures are expected to rise into the mid to upper 60s
across the majority of the area with upper 50s across the higher
terrain of the poconos and lower 70s across southern new jersey
and southern delaware.
Long term Thursday night through Wednesday
After a brief period of possible unsettled weather at the
beginning of the period, dry weather takes hold of the forecast
for the rest of the long term forecast.
On Thursday night, an area of low pressure will be approaching
the area from the southwest, before moving across the area
during the day Friday. There remains some timing and locations
differences with the low between the guidance, however, there is
better agreement than there was yesterday. They all indicate an
increase in moisture while several short wave vorticity
impulses slide across the area as well, especially during the
day Friday, which has the best chance of rainfall.
Once this low lifts to our northeast, it will combine with
another low pressure that will be moving out of the great lakes
region and across eastern canada and northern new england. This
will pull a cold front across the area during the day Saturday.
Low-mid level lapse rates increase ahead of the front while
there will be an increase in low-mid level moisture. This could
bring another chance of showers during the day as the front
moves across the area. Not much in the way of instability is
forecast, so we are not including thunderstorms at this time.
Behind this front, drier conditions return to the forecast.
The low pressure across eastern canada will stay near the
canadian maritimes through Monday, while high pressure across
the great lakes and ohio valley Sunday will build to our south|
Monday. A couple of surface troughs will cross the area during
this time period, but are expected to remain dry. For Sunday and
Monday, there will be a pressure gradient in place between the
high to the south and low to the north, so a steady breeze with
gusts likely in the 20s is expected, with Sunday having the
The high will remain to our south Tuesday into Wednesday,
keeping dry conditions in the forecast. Winds will remain out of
the west, and although a steady breeze is expected and slightly
gusty at times, winds are not forecast to be as gusty as Sunday
Aviation 00z Thursday through Monday
The following discussion is for kphl, kpne, kttn, kabe, krdg,
kilg, kmiv, kacy and surrounding areas.
Tonight... Restrictions persist this evening with mainly ifr to
lifr for kacy kttn and mainly MVFR elsewhere. However can't rule
out a brief drop to ifr for kphl kpne kabe though confidence
not high enough to include in the tafs. With the passage of a
front, conditions improve toVFR through the 4 to 7z time frame
as winds shift to W nw.
Thursday... MainlyVFR conditions expected with clearing skies.
West to northwest winds pick up around 10-14z. Winds will be
around 10 to 12 knots with a few higher gusts through the
Thursday night... GenerallyVFR, although MVFR conditions may
begin late in the night across the southern areas as rain
Friday... MVFR, possible ifr, with a chance of scattered
Friday night... MVFR conditions possible early with scattered
showers, becomingVFR during the evening and overnight.
Saturday... MostlyVFR. A chance of showers which may
temporarily lower conditions.
Saturday night-Monday...VFR. Gusty west to northwest winds
20-25 knots Sunday and Monday.
6 pm update... Dense fog advisory has been extended until
midnight based on beach cams and satellite imagery.
Previous discussion... Dense fog on the waters is slowly eroding
from south to north. However, beach cams continue to show fog
up and down the coastline, although there are some breaks
occurring at this time. Therefore, we will leave the dense fog
advisory in place. The dense fog advisory runs through 7pm.
Otherwise, the delaware bay looks fairly quiet through
Thursday. Winds may near 25 knots Thursday morning but are
currently forecast to remain below SCA criteria.
The SCA on the ocean will remain in place, mainly for seas,
through Thursday. Winds may gust to around 25 knots early on
Thursday night... Small craft advisory continues due to elevated
Friday-Friday night... Elevated seas may linger into Friday and
Saturday night... Conditions expected to remain below advisory
Sunday-Monday... Winds may approach small craft advisory levels
Phi watches warnings advisories
Nj... Dense fog advisory until midnight edt tonight for njz014-
Marine... Dense fog advisory until midnight edt tonight for anz450>455.
Small craft advisory until 6 am edt Friday for anz450>455.
near term... Fitzsimmons meola
short term... Meola
long term... Robertson
aviation... Fitzsimmons robertson meola
marine... Fitzsimmons robertson meola
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
|Stations||Dist||Age||Wind||Air Temp||Water Temp||Waves||Pressure||DewPt|
|PHBP1 - 8545240 - Philadelphia, PA||3 mi||37 min||65°F||50°F||1003.3 hPa|
|BDSP1||6 mi||37 min||65°F||55°F||1003.6 hPa|
|MRCP1 - 8540433 - Marcus Hook, PA||16 mi||43 min||65°F||53°F||1003.8 hPa|
|BDRN4 - 8539094 - Burlington, Delaware River, NJ||18 mi||79 min||N 2.9 G 7||64°F||53°F||1003.6 hPa|
|NBLP1 - 8548989 - Newbold, PA||26 mi||37 min||NNE 1.9 G 5.1||63°F||54°F||1004.4 hPa|
|DELD1 - 8551762 - Delaware City, DE||34 mi||37 min||NW 6 G 7||64°F||51°F||1004.2 hPa|
|RDYD1 - 8551910 - Reedy Point, DE||35 mi||37 min||64°F||54°F||1003.8 hPa|
|CHCM2 - 8573927 - Chesapeake City, MD||45 mi||43 min||WNW 5.1 G 6||64°F||55°F||1004.7 hPa|
|JCRN4 - Jacques Cousteau Reserve, NJ||48 mi||85 min||ESE 7||53°F||1004 hPa||51°F|
Wind History for Philadelphia, PA(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Philadelphia, Philadelphia International Airport, PA||6 mi||61 min||NNW 9||10.00 mi||Overcast||65°F||59°F||81%||1003.9 hPa|
|Philadelphia, Northeast Philadelphia Airport, PA||12 mi||61 min||NNE 7||10.00 mi||Overcast||66°F||60°F||81%||1004.4 hPa|
|Philadelphia - Wings Field Airport, PA||13 mi||60 min||N 0||10.00 mi||Overcast||61°F||60°F||100%||1004.7 hPa|
|Mount Holly, South Jersey Regional Airport, NJ||18 mi||61 min||N 7||10.00 mi||Overcast||67°F||60°F||79%||1003.7 hPa|
Wind History from PHL (wind in knots)
|1 day ago||S||S||S||SE||SE||E||E||E||E||E||E||E||E||SE||SE||SE|
|2 days ago||SW||S||S||S||S||SW||W||SW||Calm||Calm||SW||Calm||Calm||Calm||E||E||SE||E||S||W|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
|Market Street Bridge |
Click for Map
Wed -- 04:01 AM EDT Moonset
Wed -- 04:54 AM EDT 0.50 feet Low Tide
Wed -- 06:08 AM EDT Sunrise
Wed -- 10:14 AM EDT 6.73 feet High Tide
Wed -- 03:16 PM EDT Moonrise
Wed -- 05:33 PM EDT 0.27 feet Low Tide
Wed -- 07:49 PM EDT Sunset
Wed -- 10:50 PM EDT 6.69 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
Click for Map
Wed -- 01:39 AM EDT -2.11 knots Max Ebb
Wed -- 04:00 AM EDT Moonset
Wed -- 05:35 AM EDT 0.00 knots Slack
Wed -- 06:08 AM EDT Sunrise
Wed -- 07:34 AM EDT 1.85 knots Max Flood
Wed -- 10:56 AM EDT -0.00 knots Slack
Wed -- 02:13 PM EDT -2.02 knots Max Ebb
Wed -- 03:16 PM EDT Moonrise
Wed -- 06:17 PM EDT 0.01 knots Slack
Wed -- 07:49 PM EDT Sunset
Wed -- 09:12 PM EDT 1.78 knots Max Flood
Wed -- 11:31 PM EDT -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Weather Map and Satellite Images(on/off)  HelpWeather Map
GOES 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.
target = "new">Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Philadelphia/Mount Holly, PA (19,4,5,8)(on/off)  Help
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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 numerious 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.