Saturday, September21, 2019 L-36.com


Marine Weather and Tides
West Reading, PA

Version 3.4
NOTICE
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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:48AMSunset 7:04PM Saturday September 21, 2019 12:48 AM EDT (04:48 UTC) Moonrise 10:38PMMoonset 12:54PM Illumination 55% Phase: Third Quarter Moon; Moon at 22 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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ANZ530 Chesapeake Bay North Of Pooles Island- 1035 Pm Edt Fri Sep 20 2019
Rest of tonight..SW winds 5 kt. Waves less than 1 ft.
Sat..S winds around 5 kt. Waves flat.
Sat night..S winds around 5 kt. Waves 1 ft or less.
Sun..S winds 5 to 10 kt. Waves 1 ft or less.
Sun night..S winds 5 to 10 kt. Waves 1 ft.
Mon..SW winds 10 kt. Waves 1 ft.
Mon night..NW winds 5 to 10 kt. Waves 1 ft.
Tue..NW winds 5 to 10 kt. Waves 1 ft or less.
Wed..SW winds 5 kt. Waves less than 1 ft.
ANZ500 1035 Pm Edt Fri Sep 20 2019
Synopsis for the tidal potomac and md portion of the chesapeake bay.. High pressure will dominate over the waters through Saturday before settling to the south on Sunday. Small craft advisories may be required Sunday night and into Monday for a portion of the waters.


7 Day Forecast for Marine Location Near West Reading , PA
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location: 40.34, -75.95     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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Fxus61 kphi 210120
afdphi
area forecast discussion
national weather service mount holly nj
920 pm edt Fri sep 20 2019

Synopsis
High pressure will slide southward tonight and then offshore through
the weekend. A cold front will approach from the west on Monday,
crossing the area Monday night. High pressure will return for the
midweek period.

Near term until 6 am Saturday morning
Temperatures dropping off fairly quickly due to radiational
cooling from clear skies and light winds. Some patchy fog is
possible in the predawn hours, mainly away from the urban
corridor.

Short term 6 am Saturday morning through Sunday
Dry weather will continue through Saturday and Saturday night
as high pressure remains to our south and a surface trough
remains across the area. Temperatures will warm well above
normal starting Saturday as ridging aloft builds across the east
coast and return flow brings in warmer, more moist air.

Vertical moisture remains limited, so precipitation is not
expected through Saturday night, regardless of any short
wave vorticity impulses.

By Sunday, the ridge aloft breaks down while the high pushes
offshore of the mid-atlantic coast and the weak surface trough
remains near the area. This will allow for the return flow to
continue through Sunday. Very warm temperatures and increasing
moisture are expected through Sunday. Later Sunday, there is a
chance some showers may develop to our west, but they are
expected to stay out of our area and remain near the surface
trough as it drifts westward through the day.

Long term Sunday night through Friday
Not much change in the extended period as we are largely dominated
by high pressure. Main opportunity for precipitation will be with
the frontal passage on Monday night.

A cold front will approach the region from the west on Monday,
crossing through the area Monday night. Low level moisture will be
on the rise in the return flow around the departing high pressure.

Flow looks to be pretty progressive with the front working through
the area Monday night and then offshore by Tuesday morning. Some
instability may develop head of the front with the best forcing
right in front of and along the boundary. Only will mention a slight
chance of thunder, mainly during the afternoon, with it waning once
we head into the evening and lose the diurnal component.

Once the front moves through, high pressure starts to build back
into the region. There may be a weak front that moves through on
Thursday but most guidance shows little moisture around and it may
not be much more than a wind shift across our area.

Aviation 01z Saturday through Wednesday
The following discussion is for kphl, kpne, kttn, kabe, krdg, kilg,
kmiv, kacy and surrounding areas.

Tonight... MostlyVFR conditions expected. Patchy fog may
develop for a few locations, mainly rdg, miv, and acy. Will
carry tempo groups with MVFR vsby. Lgt vrb winds.

Saturday...VFR. Light and variable winds early, increasing out
of the southwest 5-10 knots during the day.

Outlook...

Saturday night... MostlyVFR conditions expected. Patchy fog may
develop for a few locations, mainly rdg, miv, and acy. Southwest
winds 5-10 knots or less early this evening, then light and variable
overnight.

Sunday...VFR conditions expected. Light and variable winds early,
increasing out of the southwest 5-10 knots during the day, with
gusts 15-20 knots possible.

Monday... MainlyVFR expected. MVFR or lower possible in scattered
showers. Southwest winds around 5 to 10 knots with some gusts around
15 to 20 knots (more likely closer to kacy). Winds will turn to the
west and then northwest late behind a cold frontal passage.

Tuesday... MainlyVFR expected. Northwest winds around 5 to 10 knots.

Wednesday... MainlyVFR expected. Light westerly winds.

Marine
Tonight... Small craft advisory continues on the atlantic ocean
coastal waters through tonight with seas around 5-6 feet.

Saturday... The small craft advisory will continue into the
first half of the day, before dropping during the afternoon as
seas subside.

Outlook...

Saturday night... Conditions expected to remain below advisory levels
overnight.

Sunday... Winds increase through the day Sunday and may reach
advisory levels by late afternoon.

Sunday night through Monday night... Seas may start to build to
around 5 feet Sunday night, continuing through Monday night. A small
craft advisory will likely be needed for the ocean waters.

Tuesday through Wednesday... Seas subside into Tuesday morning,
falling below advisory levels and remaining sub-advisory through
Wednesday.

Rip currents...

a high risk for the development of dangerous rip currents
continues through Saturday as the long period swells and high
seas continue. A rip current statement (under the coastal
hazard message) is carrying the related info.

Phi watches warnings advisories
Pa... None.

Nj... High rip current risk through Saturday evening for njz014-
024>026.

De... High rip current risk through Saturday evening for dez004.

Md... None.

Marine... Small craft advisory until 4 pm edt Saturday for anz452>455.

Small craft advisory until noon edt Saturday for anz450-451.

Synopsis... Meola
near term... Robertson mps
short term... Robertson
long term... Meola
aviation... Robertson meola mps
marine... Robertson meola mps


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MRCP1 - 8540433 - Marcus Hook, PA 46 mi54 min 69°F 75°F1022.9 hPa
PHBP1 - 8545240 - Philadelphia, PA 51 mi48 min 65°F 74°F1022.7 hPa (+0.0)

Wind History for Philadelphia, PA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Reading, Reading Regional Airport, PA3 mi54 minN 010.00 miFair58°F55°F90%1023.4 hPa
Pottstown, Pottstown Limerick Airport, PA22 mi54 minN 010.00 miFair54°F52°F93%1023.7 hPa
Lancaster, Lancaster Airport, PA24 mi55 minN 010.00 miFair59°F51°F75%1023.6 hPa

Link to 5 minute data for KRDG

Wind History from RDG (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm43S5W5W8W7W5SW4SW4CalmSW4CalmCalm
1 day agoCalmN4N4N3CalmCalmN3N4N53N4N5CalmE5SE4SW43CalmS3CalmS3SW3CalmCalm
2 days agoN5N3NW4N3N3N5N4N5N6N7NE73NE74NE8NE1046SE3E3NE3CalmSE3SE7

Tide / Current Tables for Marcus Hook, Pennsylvania
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Marcus Hook
Click for Map
Sat -- 01:08 AM EDT     0.64 feet Low Tide
Sat -- 05:49 AM EDT     4.71 feet High Tide
Sat -- 06:44 AM EDT     Sunrise
Sat -- 01:07 PM EDT     0.45 feet Low Tide
Sat -- 01:46 PM EDT     Moonset
Sat -- 06:10 PM EDT     5.51 feet High Tide
Sat -- 06:56 PM EDT     Sunset
Sat -- 10:43 PM EDT     Last Quarter
Sat -- 11:33 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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10.61.12.64.14.64.74.43.72.71.91.20.70.50.82.34.25.25.55.44.83.832.2

Tide / Current Tables for Edgemoor, Delaware River, Delaware
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


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 (0,6,7,8)
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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.