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 6:15AM||Sunset 7:44PM||Thursday April 19, 2018 5:36 AM EDT (09:36 UTC)||Moonrise 8:05AM||Moonset 10:48PM||Illumination 16%|
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|ANZ430 Delaware Bay Waters North Of East Point Nj To Slaughter Beach De- 408 Am Edt Thu Apr 19 2018 |
.gale warning in effect from 2 pm edt this afternoon through Friday morning...
Today..NE winds 10 to 15 kt, becoming nw 15 to 20 kt this morning with gusts up to 35 kt this afternoon. Waves around 2 ft. Showers likely this afternoon.
Tonight..NW winds 15 to 20 kt with gusts up to 35 kt. Waves around 2 ft.
Fri..NW winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 2 ft or less.
Fri night..NW winds 5 to 10 kt. Waves 2 ft or less.
Sat..NW winds 5 to 10 kt. Waves 2 ft or less, then around 3 ft in the afternoon.
Sat night..W winds around 5 kt, becoming N after midnight. Waves 2 ft or less, then around 3 ft after midnight.
Sun..N winds 5 to 10 kt, becoming W in the afternoon. Waves around 3 ft in the morning, then 2 ft or less.
Sun night..SW winds 5 to 10 kt, diminishing to around 5 kt after midnight. Waves 2 ft or less.
Mon..E winds 5 to 10 kt. Waves 2 ft or less, then around 3 ft in the afternoon.
Mon night..SE winds 5 to 10 kt. Waves around 3 ft in the evening, then 2 ft or less.
|ANZ400 408 Am Edt Thu Apr 19 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 the region this morning. This low will then drift into the canadian maritimes through Friday, which will keep northwest flow across the area with a couple of dry surface troughs moving across the east coast. High pressure will build into the mid atlantic and northeast Saturday through Sunday, before moving offshore Monday.
7 Day Forecast for Marine Location Near Cedarville, NJHourly EDIT Help
Area Discussion for - Philadelphia/Mount Holly, PA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus61 kphi 190757|
area forecast discussion
national weather service mount holly nj
357 am edt Thu apr 19 2018
An area of low pressure will move across the region this morning
along with its associated occluded, warm, and cold fronts. This low
will then drift into the canadian maritimes through Friday, which
will keep northwest flow across the area with a couple of dry
surface troughs moving across the east coast. High pressure will
build into the mid atlantic and northeast Saturday through Sunday,
before moving offshore Monday into Tuesday. A coastal low may move
north along the coast and affect the area during the middle of next
Near term until 6 pm this evening
Low pressure was centered over the lower DELMARVA region around 3:30
am. It is forecast to strengthen today as it moves northeastward and
out to sea. An area of light rain showers associated with the low
will continue to pass across eastern pennsylvania, and northern and
central new jersey early this morning. Some snow flakes may mix with
the rain in the elevated terrain of the poconos. However, little or
no snow accumulation is anticipated.
There may be a break in the precipitation around mid morning.
A mid level trough located over the southern great lakes and the
ohio river valley early this morning will progress eastward. The
feature is expected to pass overhead this afternoon. Additional rain
showers are forecast to accompany the mid level trough and they will
likely affect all of eastern pennsylvania, new jersey and much of
the upper delmarva.
As the surface low moves out to sea, a light northeast to north wind
is expected to become northwest. Wind speeds are forecast to
increase around 15 to 20 mph with gusts approaching 30 mph for this
afternoon in much of our region.
High temperatures should range from around 40 in the elevated
terrain of the poconos to near 60 in southern delaware.
Short term 6 pm this evening through 6 am Friday
The intensifying surface low is forecast to pass near nova scotia
tonight and high pressure will begin building into our region from
the west. The pressure gradient between the two systems should
maintain a northwest wind around 10 to 15 mph for much of the night
with gusts near 20 mph.
The cloud cover is expected to decrease from south to north during
the course of the night. Scattered light snow showers and flurries
may linger in the poconos and far northern new jersey.
Low temperatures are forecast to be mainly in the 30s in the lehigh
valley, southeastern pennsylvania, new jersey, delaware and
northeastern maryland. Readings should drop into the upper 20s in
the elevated terrain up north.
The northwest wind is expected to preclude the development of any
frost tonight. However, temperatures may approach the freezing mark
in some location where we have started to issue frost and freeze
products for the season (generally from a reading to trenton to new
brunswick line southward). We are particularly concerned with parts
of berks county, chester county and lower montgomery county in
pennsylvania. We will take a look at the next full round of guidance
before deciding whether a freeze warning is necessary.
Long term Friday through Wednesday
Friday through Sunday...
high pressure will bring dry, quiet weather with sunshine for the
weekend. To start the period Friday morning, low pressure will be
over atlantic canada with an associated upper level trough
extending back into the northeast conus. Meanwhile a broad high
will be situated over the midwest. This will keep the area in a
relatively cool, breezy, NW flow for Friday with highs generally
in the low to mid 50s (40s across the southern poconos). Early
in the day there could still be some lingering snow rain showers
in the southern poconos but otherwise conditions will be dry
with considerable cloud cover persisting in the far north but
otherwise partly to mostly sunny skies with just some afternoon
cu farther south.
High pressure gradually builds eastward into the region through the
course of Friday night and Saturday. The result will be lighter
winds for Saturday and somewhat warmer temperatures as the airmass
modifies. Most area will see highs in the mid to upper 50s Saturday|
under abundant sunshine with again, the southern poconos being
cooler in the 40s. The high will remain in place over the area right
through Sunday bringing more sunshine with the general moderation in
temperatures continuing as temperatures Sunday should be a few
degrees warmer than Saturday.
Sunday night through Wednesday...
high pressure maintains control over the region bringing sunshine
and seasonable temperatures through at least Monday. By Tuesday, the
gfs indicates that a coastal low over the southeast us will begin to
move north toward the area... Potentially bringing in some light rain
to southern areas by late day. However the ECMWF and gem global are
slower to bring this system up and based on the GFS tending to be a
little too progressive in these scenarios, we trimmed back pops and
keep Tuesday dry at this point. However by Wednesday, system looks
to make its move up the coast as its associated upper level low
opens up at the same time another trough moves in from the west. So
we keep chances of rain in the forecast for Wednesday. Temperatures
look to generally remain around seasonal through this period.
Aviation 07z Thursday through Monday
The following discussion is for kphl, kpne, kttn, kabe, krdg, kilg,
kmiv, kacy and surrounding areas.
Today... Conditions lowering to MVFR this morning at krdg, kabe, kttn
and kpne. Ceilings lowering to MVFR this afternoon at kphl, kilg,
kmiv and kacy. An area of light showers will affect krdg, kabe and
kttn early this morning. Another area of light showers is expected
to impact all eight of our TAF sites this afternoon. A light east to
northeast wind early this morning, becoming north then northwest and
increasing to 10 to 20 knots with gusts of 25 to 30 knots this
Tonight...VFR with decreasing cloud cover. Northwest wind 10 to 15
knots with gusts of 20 to 25 knots.
Friday-Monday...VFR through the period. Gusty northwest winds
gusting 20-30 knots Friday; 15-20 knots Friday night; and 10-15
Low pressure over the lower DELMARVA early this morning will move
out to sea and strengthen. A northwest wind will develop today and
speeds should be on the increase. We continue to expect gale force
gusts on delaware bay and on our ocean waters from great egg inlet,
new jersey to fenwick island, delaware. As a result, the gale
warning remains in effect for those areas.
We have changed the gale watch for our waters off the coast from
great egg inlet northward to sandy hook to a small craft advisory.
Wind gusts should be slightly lower there than in areas to the
south. We are anticipating wind gusts to peak around 30 to 32 knots
in the area covered by the small craft advisory.
Friday... Small craft advisory conditions likely in the morning with
winds diminishing below SCA levels by afternoon.
Friday night - Monday... Sub small craft advisory conditions exected.
Phi watches warnings advisories
Marine... Small craft advisory from 4 pm this afternoon to noon edt
Friday for anz450>452.
Gale warning from 2 pm this afternoon to 8 am edt Friday for
near term... Iovino
short term... Iovino
long term... Fitzsimmons
aviation... Fitzsimmons iovino
marine... Fitzsimmons iovino
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|
|DRSD1 - Delaware Reserve, DE||17 mi||126 min||NE 2.9||49°F||1003 hPa||48°F|
|RDYD1 - 8551910 - Reedy Point, DE||23 mi||48 min||49°F||51°F||1004.3 hPa|
|BRND1 - 8555889 - Brandywine Shoal Light, DE||24 mi||54 min||ENE 15 G 17||48°F||1002 hPa|
|DELD1 - 8551762 - Delaware City, DE||25 mi||48 min||N 14 G 16||50°F||48°F||1004.7 hPa|
|CMAN4 - 8536110 - Cape May, NJ||29 mi||48 min||E 5.1 G 9.9||48°F||50°F||1001.2 hPa|
|CHCM2 - 8573927 - Chesapeake City, MD||32 mi||54 min||NW 6 G 9.9||49°F||51°F||1004.9 hPa|
|MRCP1 - 8540433 - Marcus Hook, PA||35 mi||54 min||50°F||51°F||1004.8 hPa|
|LWSD1 - 8557380 - Lewes, DE||37 mi||54 min||ENE 11 G 13||49°F||50°F||1001.6 hPa|
|PHBP1 - 8545240 - Philadelphia, PA||44 mi||54 min||49°F||49°F||1004.9 hPa|
|JCRN4 - Jacques Cousteau Reserve, NJ||46 mi||66 min||NNE 5.1||45°F||1003 hPa||42°F|
|ACYN4 - 8534720 - Atlantic City, NJ||46 mi||48 min||47°F||48°F||1003 hPa|
|BDSP1||48 mi||48 min||49°F||53°F||1005.4 hPa|
Wind History for Ship John Shoal, NJ(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Millville, Millville Municipal Airport, NJ||12 mi||42 min||N 10||10.00 mi||Overcast||48°F||41°F||77%||1002.9 hPa|
|Dover Air Force Base, DE||15 mi||40 min||N 8||10.00 mi||Fair||45°F||42°F||90%||1003.3 hPa|
Wind History from MIV (wind in knots)
|1 day ago||NW||W|
|2 days ago||SE|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
|Back Creek entrance |
Click for Map
Thu -- 12:32 AM EDT 6.90 feet High Tide
Thu -- 06:18 AM EDT Sunrise
Thu -- 07:50 AM EDT 0.17 feet Low Tide
Thu -- 09:04 AM EDT Moonrise
Thu -- 01:11 PM EDT 5.98 feet High Tide
Thu -- 07:42 PM EDT Sunset
Thu -- 07:49 PM EDT 0.43 feet Low Tide
Thu -- 11:48 PM EDT Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|Greenwich Pier |
Click for Map
Thu -- 01:19 AM EDT 6.39 feet High Tide
Thu -- 06:18 AM EDT Sunrise
Thu -- 08:30 AM EDT 0.16 feet Low Tide
Thu -- 09:04 AM EDT Moonrise
Thu -- 01:58 PM EDT 5.53 feet High Tide
Thu -- 07:43 PM EDT Sunset
Thu -- 08:29 PM EDT 0.40 feet Low Tide
Thu -- 11:48 PM EDT Moonset
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 (5,6,7,8)(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.