Wednesday, October18, 2017 L-36.com


Marine Weather and Tides
Trexler, PA

Version 3.4
What's New / NOTES
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.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:16AMSunset 6:17PM Wednesday October 18, 2017 12:55 PM EDT (16:55 UTC) Moonrise 4:53AMMoonset 5:07PM Illumination 3% Phase: Waning Crescent; Moon at 28 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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ANZ338 NEw York Harbor- 1237 Pm Edt Wed Oct 18 2017
This afternoon..W winds around 5 kt. Waves 1 ft or less.
Tonight..SW winds 5 to 10 kt. Waves 1 ft or less.
Thu..SW winds 5 to 10 kt. Waves 1 ft or less.
Thu night..SW winds around 10 kt. Waves 1 ft or less.
Fri..NW winds 5 to 10 kt. Waves 1 ft or less.
Fri night..N winds 5 to 10 kt. Waves 1 ft or less.
Sat..NE winds 5 to 10 kt, becoming se in the afternoon. Waves 1 ft or less.
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 or less.
ANZ300 1237 Pm Edt Wed Oct 18 2017
Synopsis for the long island waters and new york harbor.. High pressure will settle to the south of the waters and remain in control through the weekend.

7 Day Forecast for Marine Location Near Trexler, PA
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location: 40.6, -75.64     debug


Area Discussion for - Philadelphia/Mount Holly, PA
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Fxus61 kphi 181349
afdphi
area forecast discussion
national weather service mount holly nj
949 am edt Wed oct 18 2017

Synopsis
High pressure remains in control of the weather for much of the
rest of the week into the weekend. A dry frontal boundary may
move into the area Thursday into Friday. A couple of frontal
boundaries are forecast to affect the area early next week,
bringing a return of unsettled weather.

Near term until 6 pm this evening
The frost advisory was allowed to expire at 9 am for the nj pine
barrens as temperatures have risen from the mid 30s at 7 am to
the lower 50s just two hours later.

Otherwise, a quiet weather day is in store with high centered
over the mid-atlantic region today. Sunny skies and a light w-sw
wind are in store for the area.

The combination of subsidence underneath the ridge and weak waa
(from w-sw flow on the northern periphery of the high) will
yield a noticeably warmer day than yesterday and Monday. The
latest 12z RAOB soundings from iad okx reveal a 5-10 c increase
in low- level temps over the past 24 hours. High temperatures
for today were tweaked a bit for the 930 am update after
blending the previous forecast with the latest hi-res guidance
and then applying a few minor manual adjustments based on bias
correct from yesterday's forecast.

Short term 6 pm this evening through 6 am Thursday
Made adjustments to the sky cover forecast for tonight to take
into account the probability of increasing high clouds late
tonight. An upper shortwave trough approaching from the west
will be responsible for bringing in these clouds. Do not
anticipate these clouds to have a significant impact on
radiational cooling given the high base of the cirrus.

Clear tonight with diminishing winds. Dewpoints will slowly
begin to creep up with light S to SW flow. Patchy ground fog is
possible across the delmarva, pine barrens of nj, and parts of
northern nj. Radiational cooling will allow for lows in the
upper 30s to around 40 in the pine barrens, and in the mid 40s
most elsewhere. The philly metro area will drop into the low
50s.

Long term Thursday through Tuesday
Quiet weather is expected for the remainder of this week into
the weekend. High pressure will be in control of the weather
through the end of the week before moving offshore Sunday. A
frontal boundary may move across the area on Thursday, although
it is expected to be dry and only have an effect on the wind
direction and may slightly increase winds.

Ridging aloft builds across the area late this week into the
weekend, which will help keep temperatures several degrees above
normal. As the surface high and ridge aloft moves offshore
Sunday, return flow and southwest flow aloft develops. This will
help increase clouds, but no precipitation is expected through
Sunday.

As we go into early next week, a couple of frontal boundaries
are forecast to move across the east coast. This is expected to
lead to an increase in rainfall activity Monday into Tuesday,
then usher in cooler weather behind the fronts.

Aviation 14z Wednesday through Sunday
The following discussion is for kphl, kpne, kttn, kabe, krdg,
kilg, kmiv, kacy and surrounding areas.

Vfr through tonight. A light wind between 4-8 kt today will vary
between W and SW with the latter direction favored for this
afternoon. Winds diminish to 5 kt or less tonight.

Patchy ground fog is possible with brief sub-vfr vsby at kmiv
and kacy late tonight through Thursday morning.

Outlook...

Thursday-Sunday...VFR conditions expected. Winds may gust
around 15 knots out of the southwest Thursday and out of the
northwest Friday.

Marine
High pressure dominates area waters. SW winds increase to 10-15
kt this afternoon, then diminish to 5-10 kt tonight. Seas on the
ocean will be 2-3 feet.

Outlook...

Thursday-Sunday... Conditions expected to remain below small
craft advisory levels through the period.

Phi watches warnings advisories
Pa... None.

Nj... None.

De... None.

Md... None.

Marine... None.

Synopsis... Robertson
near term... Klein
short term... Klein mps
long term... Robertson
aviation... Klein robertson mps
marine... Klein robertson mps


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PHBP1 - 8545240 - Philadelphia, PA 53 mi37 min 69°F 67°F1027.1 hPa
BDRN4 - 8539094 - Burlington, Delaware River, NJ 54 mi79 min WSW 7 G 8.9 61°F 66°F1027.4 hPa

Wind History for Philadelphia, PA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Allentown Queen City Municipal Airport, PA8 mi80 minWSW 410.00 miFair61°F44°F55%1028.1 hPa
Allentown, Lehigh Valley International Airport, PA12 mi64 minSW 610.00 miFair65°F44°F47%1027.5 hPa
Quakertown Airport, PA18 mi60 minNW 510.00 miFair64°F44°F49%1028.1 hPa
Reading, Reading Regional Airport, PA23 mi61 minWNW 710.00 miFair64°F46°F52%1028.3 hPa

Wind History from XLL (wind in knots)
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Last 24hrW3W5SW6S6SW6S5S4S5S5CalmCalmS3S4S4W3CalmCalmS3S4SW5SW6SW6W4S5
1 day agoNW7N14
G18
N10
G16
N13
G18
NW11
G15
N6N4N3N5N6N7
G14
NW4N4CalmCalmCalmCalmCalmNW5CalmN5NW3CalmSW3
2 days ago------------------------------------------NW12
G17
N13
G17
NW12
G18

Tide / Current Tables for Market Street Bridge, Schuylkill River, Pennsylvania
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Market Street Bridge
Click for Map
Wed -- 12:29 AM EDT     6.96 feet High Tide
Wed -- 05:51 AM EDT     Moonrise
Wed -- 07:14 AM EDT     Sunrise
Wed -- 07:42 AM EDT     0.09 feet Low Tide
Wed -- 12:56 PM EDT     6.96 feet High Tide
Wed -- 06:05 PM EDT     Moonset
Wed -- 06:16 PM EDT     Sunset
Wed -- 08:03 PM EDT     0.20 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.86.86.25.34.43.21.80.50.21.43.14.86.476.55.74.73.62.410.212.64.2

Tide / Current Tables for Philadelphia, Pennsylvania
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Philadelphia
Click for Map
Wed -- 12:58 AM EDT     7.06 feet High Tide
Wed -- 05:51 AM EDT     Moonrise
Wed -- 07:14 AM EDT     Sunrise
Wed -- 08:06 AM EDT     0.39 feet Low Tide
Wed -- 01:28 PM EDT     7.03 feet High Tide
Wed -- 06:04 PM EDT     Moonset
Wed -- 06:16 PM EDT     Sunset
Wed -- 08:29 PM EDT     0.53 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.57.16.55.64.63.72.61.30.412.64.25.86.96.96.15.14.23.21.90.70.72.13.8

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Mid-Atlantic    EDIT
Geos

Wind Forecast for Philadelphia/Mount Holly, PA (12,3,4,5)
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Ground Weather Radar Station Philadelphia, PA
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weather_mapweather_map weather_map

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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.