Saturday, April21, 2018 L-36.com


Marine Weather and Tides
Millbourne borough, PA

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 Saturday April 21, 2018 5:50 AM EDT (09:50 UTC) Moonrise 9:52AMMoonset 12:00AM Illumination 35% Phase: Waxing Crescent; Moon at 6 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- 306 Am Edt Sat Apr 21 2018
Today..NW winds 5 to 10 kt, becoming W late. Waves 2 ft or less.
Tonight..SW winds around 5 kt, becoming N late. Waves 2 ft or less.
Sun..NE winds 5 to 10 kt, diminishing to around 5 kt late in the morning, then becoming S early in the afternoon, increasing to 5 to 10 kt late. Waves 2 ft or less.
Sun night..S winds 5 to 10 kt, becoming sw late. Waves 2 ft or less.
Mon..NE winds around 5 kt, becoming se in the afternoon. Waves 2 ft or less.
Mon night..SE winds 5 to 10 kt. Waves 2 ft or less.
Tue..E winds 10 to 15 kt. Waves 2 ft or less, then around 3 ft in the afternoon.
Tue night..E winds 10 to 15 kt. Waves around 3 ft. Rain.
Wed..E winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Waves around 3 ft in the morning, then 2 ft or less. Rain.
Wed night..NW winds around 5 kt. Waves 2 ft or less. Rain likely in the evening, then a chance of showers after midnight.
ANZ400 306 Am Edt Sat Apr 21 2018
Synopsis for the coastal waters from sandy hook nj to fenwick island de and for delaware bay.. High pressure over the great lakes builds east today, and eventually moves offshore on Monday. Low pressure over the gulf coast states lifts to the north and east, and slowly impacts the mid-atlantic during the mid-week period. Another area of low pressure may affect the area at the end of next week.

7 Day Forecast for Marine Location Near Millbourne borough, PA
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location: 39.96, -75.18     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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Fxus61 kphi 210814
afdphi
area forecast discussion
national weather service mount holly nj
414 am edt Sat apr 21 2018

Synopsis
High pressure over the great lakes builds east today, and
eventually moves offshore on Monday. Low pressure over the gulf
coast states tracks to the east, and slowly impacts the mid-
atlantic during the mid-week period. Another area of low
pressure may affect the area at the end of next week.

Near term until 6 pm this evening
Main forecast concern is temperatures this morning, with
current temperatures running about 2-4 degrees lower than
forecast (locally more), as clear skies and light to calm winds
have allowed for nearly ideal radiational cooling conditions.

The favorable valleys and rural locations have tanked in the
past hour or two temp-wise, with locations in the pine barrens
already reaching freezing. Upgraded the frost advisory to a
freeze warning given these trends (though one may question the
effectiveness of such an upgrade so late in the night) for the
pine barrens and zones north west of philadelphia (where temps
32-35 degrees are observed at this time).

After this morning's chill, today should be a nice day, as
northwesterly midlevel flow and building surface high pressure
allow for dry conditions with temperatures just a little below
seasonal averages. Winds should be a little lower today as the
surface pressure gradient slackens with the approaching high. A
250-mb jet streak and accompanying vort MAX should provide some
lift in the upper levels to allow for some increasing clouds.

These may limit temperatures from climbing a degree or two, and
i generally reduced highs by this amount today.

Short term 6 pm this evening through 6 am Sunday
Northwest midlevel flow will continue tonight as a surface
ridge remains over the region. Some perturbations in the
midlevel flow will approach the region by morning, but there is
little lift with these perturbations. Other than some increased
mid and upper-level clouds, not expecting much in terms of
sensible weather impacts.

This means that temperatures will once again be the primary
forecast concern. Could see temperatures flirting with freezing
again in portions of the area with the growing season underway,
but tonight's environment will be a little less favorable. For
one thing, if increased cloud cover is present, some radiation
may be re-emitted to the surface (though the height of the
clouds will not hamper nocturnal cooling as much as one may
anticipate). This will be especially true in the southern cwa,
but how far north these clouds persist may prove critical in how
far temperatures fall in more susceptible locations such as the
pine barrens. At this point, way too uncertain marginal to
issue additional frost freeze products. My suspicion is that no
additional products will be necessary.

Long term Sunday through Friday
High pressure over the area Sunday slowly drifts offshore Sunday
night, and remains over the western atlantic ocean waters
through Monday night before drifting offshore on Tuesday. Plenty
of sunshine and mild, though temperatures will generally be a
few degrees below normal during the day. At night, with clear
skies and light winds, radiational cooling conditions will allow
for colder conditions in the mountains and in the pine barrens
of nj.

During this time, low pressure over the gulf coast states will
slowly track to the east, and will be over the southeast u.S by
Tuesday evening. A warm front just southwest of the region lifts
north through the region Tuesday night as the low tracks north
along the coast.

Though there are rain chances during the day Tuesday lifting
from south to north, the best chances will be Tuesday night as
the low lifts to the north. The low then slowly works its way
north through Wednesday, will be south of long island Wednesday
night, and departs on Thursday. Although there may be a period
on Wednesday where locally heavy rain is possible at times, not
expecting a prolonged period of widespread heavy rain with this
system.

Weak high pressure builds through the region late Friday and
Friday night. Another cold front approaches on Saturday.

Temperatures during this time will generally be at or below
normal levels for most of the week, but temperatures trend
warmer towards the end of next week.

Aviation 07z Saturday through Wednesday
The following discussion is for kphl, kpne, kttn, kabe, krdg,
kilg, kmiv, kacy and surrounding areas.

Today...VFR with sct-bkn high clouds. Northwest winds 5 to 15
kts. High confidence.

Tonight...VFR with sct-bkn high clouds, especially south of
phl. Winds should become light and variable. High confidence.

Outlook...

Sunday through Monday night...VFR. Generally light winds. High
confidence.

Tuesday... GenerallyVFR. Clouds build from south to north. E-se
winds 10-15 kt.

Tuesday night through Wednesday... MVFR ifr in rain and fog. E-ne
winds 10-15 kt.

Marine
Fair weather and sub-advisory winds seas are expected through
tonight. Northwest winds 10 to 15 kts (possibly gusting to 20
kts or so) this morning will likely switch to southwest this
afternoon before switching back to northwest or north tonight.

Seas should remain near or below 3 feet.

Outlook...

Sunday through Tuesday... Tranquil conditions on the waters with
sub-sca conditions.

Tuesday night and Wednesday... Rain, fog, and gusty e-ne winds as
low pressure impacts the waters. SCA conditions expected.

Phi watches warnings advisories
Pa... Freeze warning until 8 am edt this morning for paz060-101>104-
106.

Nj... Freeze warning until 8 am edt this morning for njz012-013-015-
019-020-022-027.

Frost advisory until 8 am edt this morning for njz016>018-021.

De... Frost advisory until 8 am edt this morning for dez001>003.

Md... Freeze warning until 8 am edt this morning for mdz008.

Frost advisory until 8 am edt this morning for mdz012-015-020.

Marine... None.

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PHBP1 - 8545240 - Philadelphia, PA 3 mi50 min 41°F 47°F1030 hPa (+0.8)
BDSP1 6 mi50 min 40°F 50°F1030.2 hPa (+0.6)
MRCP1 - 8540433 - Marcus Hook, PA 16 mi50 min 38°F 49°F1030.3 hPa (+0.8)
BDRN4 - 8539094 - Burlington, Delaware River, NJ 18 mi74 min Calm G 1.9 37°F 45°F1029.8 hPa
NBLP1 - 8548989 - Newbold, PA 26 mi50 min WNW 4.1 G 4.1 37°F 46°F1030.3 hPa (+0.5)
DELD1 - 8551762 - Delaware City, DE 34 mi50 min WSW 2.9 G 2.9 37°F 47°F1030.8 hPa (+0.8)
RDYD1 - 8551910 - Reedy Point, DE 35 mi50 min 39°F 50°F1030.4 hPa (+0.7)
CHCM2 - 8573927 - Chesapeake City, MD 45 mi56 min S 1 G 1.9 34°F 51°F1031.4 hPa
JCRN4 - Jacques Cousteau Reserve, NJ 48 mi80 min W 4.1 35°F 1029 hPa25°F

Wind History for Philadelphia, PA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Philadelphia, Philadelphia International Airport, PA6 mi56 minW 410.00 miA Few Clouds38°F25°F60%1030.6 hPa
Philadelphia, Northeast Philadelphia Airport, PA12 mi56 minW 310.00 miFair36°F25°F64%1030.6 hPa
Philadelphia - Wings Field Airport, PA13 mi75 minN 010.00 miFair32°F28°F87%1030.5 hPa
Mount Holly, South Jersey Regional Airport, NJ18 mi56 minW 310.00 miFair33°F27°F78%1030.1 hPa

Wind History from PHL (wind in knots)
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Last 24hrNW9NW11NW13
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N5N4CalmW4W4
1 day agoN12E14E3NW11NW9N4CalmN11NW14NW14
G23
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2 days agoW12W13W16W17W13W13SW9W10W11
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SW11W9W8SW5SW4CalmCalmE4E4E4E7NE5E6N9

Tide / Current Tables for Market Street Bridge, Schuylkill River, Pennsylvania
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Market Street Bridge
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Sat -- 12:52 AM EDT     Moonset
Sat -- 12:54 AM EDT     0.56 feet Low Tide
Sat -- 06:02 AM EDT     6.96 feet High Tide
Sat -- 06:14 AM EDT     Sunrise
Sat -- 10:52 AM EDT     Moonrise
Sat -- 01:43 PM EDT     0.39 feet Low Tide
Sat -- 06:49 PM EDT     6.06 feet High Tide
Sat -- 07:45 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.90.61.53.85.76.676.65.74.63.62.61.60.70.41.73.755.865.54.53.52.5

Tide / Current Tables for Philadelphia, Pennsylvania Current
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Philadelphia
Click for Map
Sat -- 12:52 AM EDT     Moonset
Sat -- 01:50 AM EDT     0.00 knots Slack
Sat -- 03:53 AM EDT     2.37 knots Max Flood
Sat -- 06:14 AM EDT     Sunrise
Sat -- 07:13 AM EDT     -0.00 knots Slack
Sat -- 10:41 AM EDT     -2.22 knots Max Ebb
Sat -- 10:52 AM EDT     Moonrise
Sat -- 02:39 PM EDT     0.00 knots Slack
Sat -- 04:34 PM EDT     1.99 knots Max Flood
Sat -- 07:45 PM EDT     Sunset
Sat -- 07:49 PM EDT     -0.00 knots Slack
Sat -- 10:54 PM EDT     -2.22 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1.6-10.31.82.41.91.30.3-1-1.9-2.2-2.2-2-1.7-10.61.81.91.61-0.3-1.5-2.1-2.2

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 (5,6,7,8)
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Ground Weather Radar Station Philadelphia, PA
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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.