Sunday, April22, 2018 L-36.com


Marine Weather and Tides
Shiloh, NJ

Version 3.4
What's New / NOTES
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 6:11AMSunset 7:47PM Sunday April 22, 2018 2:22 PM EDT (18:22 UTC) Moonrise 10:58AMMoonset 12:48AM Illumination 49% Phase: First Quarter Moon; Moon at 7 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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ANZ430 Delaware Bay Waters North Of East Point Nj To Slaughter Beach De- 1231 Pm Edt Sun Apr 22 2018
This afternoon..SE winds around 10 kt. Waves 2 ft or less.
Tonight..S winds 5 to 10 kt, becoming E late. Waves 2 ft or less. Patchy fog after midnight with vsby 1 to 3 nm.
Mon..SE winds around 5 kt, increasing to 5 to 10 kt in the afternoon. Waves 2 ft or less. Patchy fog early in the morning with vsby 1 to 3 nm.
Mon night..SE winds 5 to 10 kt. Waves 2 ft or less.
Tue..E winds 10 to 15 kt with gusts up to 25 kt. Waves 2 ft or less, then around 3 ft in the afternoon. A chance of rain.
Tue night..SE winds 15 to 20 kt with gusts up to 25 kt. Waves around 3 ft. Rain. Patchy fog. Vsby 1 to 3 nm.
Wed..SE winds 10 to 15 kt, becoming sw around 5 kt in the afternoon. Waves 2 ft or less. Rain. Patchy fog. Vsby 1 to 3 nm.
Wed night..W winds 5 to 10 kt. Waves 2 ft or less. A chance of rain in the evening, then a chance of showers after midnight.
Thu..W winds 5 to 10 kt. Waves 2 ft or less. A chance of showers.
Thu night..W winds 5 to 10 kt. Waves 2 ft or less.
ANZ400 1231 Pm Edt Sun Apr 22 2018
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. High pressure over eastern canada and the northeast united states will slowly build east and move off the new england coast on Monday. Meanwhile, low pressure over the western gulf coast states will track to the north and east and impact the mid-atlantic and northeast for the middle of the week. Another low may affect the area at the end of the week, and then a cold front may pass through the region next weekend.

7 Day Forecast for Marine Location Near Shiloh , NJ
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location: 39.38, -75.35     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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Fxus61 kphi 221639
afdphi
area forecast discussion
national weather service mount holly nj
1239 pm edt Sun apr 22 2018

Synopsis
High pressure over eastern canada and the northeast united states
will slowly build east and move off the new england coast on Monday.

Meanwhile, low pressure over the western gulf coast states will
track to the north and east and impact the mid-atlantic and
northeast for the middle of the week. Another low may affect the
area at the end of the week, and then a cold front may pass through
the region next weekend.

Near term until 6 pm this evening
For the 1230 pm update, adjusted some temperatures to show a bit
faster rise away from the coast based on trends. Dew points
have lowered quite a bit across much of the region, therefore
significant adjustments were needed for some areas. To the south
and east of the fall line, dew points should increase some
toward late afternoon as a sea breeze makes some inland
progress. A sea breeze front is evident across coastal new
jersey on radar and mesonet observations. The sea breeze will
have an impact on temperatures as well, and the going forecast
looks to have this covered.

Some high clouds will continue to move across the area, however
these continue to look to be more thinned.

Short term 6 pm this evening through 6 am Monday
Main forecast concern tonight is the development of fog near
the coast as remnant (light) onshore flow from the sea breeze
combines with dropping temperatures to allow for low-level
saturation. Spread the mention of fog a little bit further
inland in southern eastern nj and coastal delaware, though not
expecting widespread dense fog at this point.

With the surface ridge in place, winds will likely decouple
fast, and with clear skies thanks to being upstream of passing
northwest- flow midlevel perturbations, temperatures will fall
readily. I went a little below guidance for lows tonight, and
would not be surprised to see the low-lying spots with a little
frost late. However, suspect this will be quite patchy at best,
so made no mention of this in the grids at this point.

Forecast lows are similar to tonight's values.

Long term Monday through Saturday
Unsettled weather on tap for much of the new week as low
pressure lifts along the coast.

High pressure over the northeast u.S. Moves off the new england
coast on Monday, and then slowly tracks out to sea Monday night
and Tuesday. Onshore flow develops, and although temperatures
climb into the 60s for most inland areas, temperatures will be
colder along the coast with highs staying in the 50s.

Low pressure tracking along the gulf coast states will be over
the southeast u.S. Monday evening, and then the low lifts along
the coast Monday night and Tuesday.

Onshore flow will usher in an increasingly moist airmass into
the region, and pwats will increase to around 1.25" Tuesday
night and Wednesday morning. This may allow for a period of
moderate to locally heavy rain during this time.

The low will be off the mid-atlantic coast Wednesday morning,
and then the low tracks north during the day Wednesday and will
be north of the region by Wednesday night.

From there, conditions generally dry out Wednesday night and
Thursday, but there is the potential for unsettled weather to
continue into Friday as several weak upper level disturbances
pass through the region. There is the chance for another coastal
low on Friday, as the cmc-gdps indicates this low, but the gfs
and the ECMWF do not. The GFS has a quick moving cold front that
the ECMWF holds off until Saturday. For now, will carry chance
pops Friday through Saturday due to low confidence.

Temperatures during this time will generally be near or below
normal levels for most of the week.

Aviation 18z Sunday through Friday
The following discussion is for kphl, kpne, kttn, kabe, krdg,
kilg, kmiv, kacy and surrounding areas.

This afternoon...VFR with some high clouds. Light and variable
winds to locally west or northwest mainly less than 10 knots. A
sea bay breeze will result in a wind shift to south or southeast
around 10 knots by later this afternoon at acy, miv, and ilg.

For phl, light enough flow is resulting in a more southeast
(light) surface wind direction however this may turn more
south-southwest for a time this afternoon.

Tonight...VFR. Winds quickly becoming light and variable to locally
calm.

Monday...VFR. There is a small chance of MVFR visibility due to
light fog at miv and acy early in the morning. Light and variable to
calms winds, becoming south-southeast 5-10 knots in the
afternoon.

Outlook...

Monday night...VFR. Winds mainly light and variable.

Tuesday through Thursday... MVFR ifr conditions expected in rain
and fog, especially Tuesday night through Wednesday afternoon.

Easterly wind gusts up to 20 kt are possible Tuesday night into
Wednesday. Otherwise, generally light winds (less than 10 kt)
are expected. Medium confidence on flight categories, but low
confidence on the timing of any flight category changes.

Marine
Winds seas will remain below advisory levels through tonight.

Winds will become southerly during the afternoon, with speeds 10
to 15 kts, before becoming light and variable overnight. Seas
will likely remain below 3 feet through the period.

There is potential for at least patchy fog overnight, with
visibility restrictions possible. Chances are particularly high
in delaware bay and adjacent portions of the southern nj de
atlantic coastal waters, where light easterly southeasterly
surface flow may remain for most of the night.

Outlook...

Monday night... Winds and seas are expected to remain below sca
criteria.

Tuesday and Wednesday... East winds increase to 15-20 kt with
gusts up to 25 kt, and seas build to 8-10 feet on the ocean.

Wind gusts to 25 kt also expected on de bay.

Wednesday night and Thursday... Winds shift to the northwest and
subsequently decrease. The main question will be how long seas
remain above 5 feet on the coastal waters. Current forecast is
for elevated seas into late Thursday.

Phi watches warnings advisories
Pa... None.

Nj... None.

De... None.

Md... None.

Marine... None.

Synopsis... Mps
near term... Gorse
short term... Cms
long term... Mps
aviation... Cms gorse mps
marine... Cms mps


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RDYD1 - 8551910 - Reedy Point, DE 17 mi53 min 61°F 51°F1029.2 hPa
DELD1 - 8551762 - Delaware City, DE 19 mi53 min E 1.9 G 1.9 57°F 50°F1029.7 hPa
DRSD1 - Delaware Reserve, DE 21 mi113 min E 5.1 58°F 1030 hPa26°F
CHCM2 - 8573927 - Chesapeake City, MD 26 mi53 min Calm G 5.1 61°F 53°F1029.7 hPa
MRCP1 - 8540433 - Marcus Hook, PA 30 mi53 min 58°F 53°F1029.1 hPa
BRND1 - 8555889 - Brandywine Shoal Light, DE 30 mi53 min S 12 G 13 50°F 1030.6 hPa
CMAN4 - 8536110 - Cape May, NJ 35 mi53 min SE 8 G 11 54°F 51°F1029.7 hPa
PHBP1 - 8545240 - Philadelphia, PA 40 mi53 min 64°F 48°F1028.8 hPa
LWSD1 - 8557380 - Lewes, DE 43 mi53 min ESE 12 G 14 53°F 51°F1030.1 hPa
BDSP1 44 mi53 min 60°F 54°F1029.1 hPa
JCRN4 - Jacques Cousteau Reserve, NJ 48 mi53 min ESE 9.9 57°F 1029 hPa26°F
TCBM2 - 8573364 - Tolchester Beach, MD 49 mi53 min NNW 7 G 8 55°F 53°F1029.5 hPa
ACYN4 - 8534720 - Atlantic City, NJ 49 mi53 min 50°F 51°F1030.2 hPa

Wind History for Ship John Shoal, NJ
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Millville, Millville Municipal Airport, NJ15 mi29 minW 710.00 miFair63°F25°F24%1029.2 hPa
Dover Air Force Base, DE18 mi87 minE 710.00 miPartly Cloudy59°F24°F27%1030.4 hPa

Wind History from MIV (wind in knots)
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Last 24hr6
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W7W7W8SW5SW3SW33CalmCalmCalmCalmCalmCalmW3CalmCalmNE6NE6E64Calm--W7
1 day agoNW12
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N6NW5N6N9N6N8N4W3W4CalmW4CalmNW6NW7NW8NW8N10
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2 days agoW11
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W10W10W6W8NW7NW6NW8NW12NW8NW11
G21
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Tide / Current Tables for Greenwich Pier, Cohansey River, Delaware Bay, New Jersey
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Greenwich Pier
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Sun -- 01:47 AM EDT     Moonset
Sun -- 04:06 AM EDT     5.97 feet High Tide
Sun -- 06:14 AM EDT     Sunrise
Sun -- 11:19 AM EDT     0.41 feet Low Tide
Sun -- 11:57 AM EDT     Moonrise
Sun -- 05:00 PM EDT     5.26 feet High Tide
Sun -- 05:46 PM EDT     First Quarter
Sun -- 07:46 PM EDT     Sunset
Sun -- 11:27 PM EDT     0.68 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.83.44.85.665.74.83.72.61.710.50.61.73.14.255.34.93.92.81.91.20.8

Tide / Current Tables for Tindalls Wharf, Cohansey River, Delaware Bay, New Jersey
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Tindalls Wharf
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Sun -- 01:47 AM EDT     Moonset
Sun -- 05:43 AM EDT     6.47 feet High Tide
Sun -- 06:13 AM EDT     Sunrise
Sun -- 11:57 AM EDT     Moonrise
Sun -- 12:04 PM EDT     0.34 feet Low Tide
Sun -- 05:46 PM EDT     First Quarter
Sun -- 06:35 PM EDT     5.71 feet High Tide
Sun -- 07:45 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.81.93.44.95.86.46.45.74.431.910.30.71.83.14.35.15.65.64.73.32.11.2

Weather Map and Satellite Images
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wmap_A
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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Philadelphia/Mount Holly, PA (14,3,4,5)
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Ground Weather Radar Station Dover AFB, DE
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Disclaimer:
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.