Friday, July21, 2017

Marine Weather and Tides
Weston, 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 5:49AMSunset 8:31PM Friday July 21, 2017 12:43 AM EDT (04:43 UTC) Moonrise 2:57AMMoonset 5:54PM Illumination 7% Phase: Waning Crescent; Moon at 27 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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7 Day Forecast for Marine Location Near Weston, PA
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location: 40.94, -76.14     debug

Area Discussion for - State College, PA
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Fxus61 kctp 210052
area forecast discussion
national weather service state college pa
852 pm edt Thu jul 20 2017

Pennsylvania will be on the northern periphery of a subtropical
ridge passing across the southern states through the weekend.

A slow moving cold front will push through the area early next

Near term through Friday
The line and the best instability has moved eastward. A final
cluster of showers with perhaps of a rumble of thunder continues
to move through the laurels and will slowly moves through south
central pa. Expect these showers to diminish by midnight as the
atmosphere stabilizes.

Hot and very humid weather will continue across the CWA through
tomorrow. Across the lower susq valley, combination of heat and
humidity will likely push heat indices near 100f for at least a
couple of hours late tomorrow afternoon so possible heat
advisory tomorrow.

Short term Friday night through 6 pm Friday
Both SPC sseo and ncar ensemble suggest a dwindling band of
convection will push southeast across the region overnight, as
best forcing ahead of shortwave shifts into new england and
trailing low level jet sags south across pa.

Large scale subsidence and arrival of much lower pwats progged
for Friday, resulting in a mostly sunny day for most if not all
of the forecast area. Have maintained just a slight chance of a
lingering shower across somerset county, which will remain on
northern edge of ring of fire. GEFS mean 850 temps still around
17c-18c Friday, which should translate to MAX temps from the low
80s over the northern mountains, to the low 90s in the susq

Long term Friday night through Thursday
Upstream developments Friday night and Saturday will largely
determine convective impacts across western and central pa on
Saturday as large MCS may propagate ese towards the ERN glaks
sat morning. It is possible that this feature continues ese as a
derecho into southwest pa and the panhandles of md wv. Latest
spc outlook covers southwest 2 3 of pa in slgt risk on Saturday
and this appears well placed, but exact location of pcpn will
depend on details not well resolved until the very short term
time frame. Will keep high chc to likely pops going for this
timeframe given higher than usual confidence in widespread
convection to affect the region.

Beyond Saturday, today's medium range models generally agree
that continued gradual weakening and east-southeast shift of
the persistent central u.S. Upper ridge can be expected with
time, as shortwave troughing shifts slowly southeast out of the
canadian prairie across the northeast quarter of the country by
early next week. The associated cold front is progged by med
range guidance to push slowing southeast through the forecast
area early next week. Above average temperatures (+5-10 degree
max t departures) should trend toward mid to late july climo
numbers by next tue- wed... As wnw upper flow and persistent
southeast canadian and ERN glaks upper troffing become
prevalent by the middle of next week.

Aviation 00z Friday through Tuesday
A weakening line of what is now mainly showers is moving
southeastward across central pennsylvania at 00z this evening.

The only cluster of activity that will affect central
pennsylvania airfields is in the southwest. This will bring some
rain and maybe a rumble of thunder in the next hour or so to
kjst, and a possibility of -shra to kaoo. A single isolated
shower in northwest lycoming county may sneak into kipt as well,
but this is showing signs of weakening, so have not included in
the TAF at this point.

Models continue to insist that visibility restrictions will
occur overnight at all airfields, with an accompanying low
stratus deck across the west and north by morning. Have
maintained this thinking in the tafs for now, but with most of
the airfields avoiding precipitation this afternoon, am a bit
skeptical on just how much low level moisture will be around
overnight to bring in the stratus. Visibility restrictions in
br hz are likely though.

MainlyVFR Friday, but isolated to scattered shra tsra still
possible, mainly south.

Fri... Am br hz with cig restrictions possible north and west.

Isolated tsra in the afternoon, mainly south.

Sat-sun... Am valley fog possible. Tsra likely.

Mon... Am valley fog possible. Scattered tsra.


Ctp watches warnings advisories
Heat advisory until 8 pm edt this evening for paz035-036-056-

Synopsis... Fitzgerald gartner
near term... Ceru gartner
short term... Fitzgerald gartner
long term... Devoir
aviation... Jung

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PHBP1 - 8545240 - Philadelphia, PA 87 mi44 min 81°F 81°F1012.2 hPa (+0.0)
MRCP1 - 8540433 - Marcus Hook, PA 87 mi44 min 84°F 1012.4 hPa (+0.0)

Wind History for Philadelphia, PA
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1 day
2 days

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wilkes-Barre - Scranton, Wilkes-Barre / Scranton International Airport, PA35 mi50 minN 07.00 miOvercast72°F70°F94%1013.1 hPa

Wind History from AVP (wind in knots)
Last 24hrE3CalmE4CalmCalmE3CalmN3W4W4SW4SW7W9SW11SW9
1 day agoS3SE3CalmCalmCalmCalmSW3W33Calm4NW736NW5--NW4NE4N4SW10CalmCalmCalmSE3
2 days agoCalmCalmCalmCalmCalm--CalmCalmCalmCalmW4W7SW5SW7W8W7SW8SW8W9W8SW4S3CalmS3

Tide / Current Tables for Market Street Bridge, Schuylkill River, Pennsylvania
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Market Street Bridge
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Fri -- 03:56 AM EDT     Moonrise
Fri -- 05:49 AM EDT     Sunrise
Fri -- 07:06 AM EDT     0.30 feet Low Tide
Fri -- 12:05 PM EDT     6.24 feet High Tide
Fri -- 06:47 PM EDT     Moonset
Fri -- 07:12 PM EDT     0.24 feet Low Tide
Fri -- 08:24 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Philadelphia, Pennsylvania
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Click for Map
Fri -- 12:09 AM EDT     7.45 feet High Tide
Fri -- 03:56 AM EDT     Moonrise
Fri -- 05:49 AM EDT     Sunrise
Fri -- 07:31 AM EDT     0.22 feet Low Tide
Fri -- 12:38 PM EDT     6.36 feet High Tide
Fri -- 06:47 PM EDT     Moonset
Fri -- 07:40 PM EDT     0.17 feet Low Tide
Fri -- 08:23 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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

GOES Local Image of Mid-Atlantic    EDIT

Wind Forecast for State College, PA (0,6,7,8)
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Ground Weather Radar Station Binghamton, NY
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weather_mapweather_map weather_map

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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 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 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.