Wednesday, August21, 2019

Marine Weather and Tides
Laporte, PA

Version 3.4
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 Allen

Sunrise 6:17AMSunset 7:56PM Wednesday August 21, 2019 7:35 AM EDT (11:35 UTC) Moonrise 10:09PMMoonset 10:59AM Illumination 67% Phase: Waning Gibbous; Moon at 21 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 Laporte , PA
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location: 41.46, -76.5     debug

Area Discussion for - State College, PA
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Fxus61 kctp 210959
area forecast discussion
national weather service state college pa
559 am edt Wed aug 21 2019

It will remain very warm and humid today with scattered showers
and isolated thunderstorms over the northwestern half of the
state this morning. A pair of cold fronts will push southeast
through the state, the first arriving late today and tonight,
and the second Thursday afternoon and evening. Cooler and much
less humid air will move in for Friday and will last through
much of the upcoming weekend.

Near term through tonight
Plume of high pwat air (1.5-2.0 inches) over the central
appalachians will provide the fuel for numerous showers across
the NW half of the CWA through much of this morning, followed by
showers and scattered strong to svr tsra this afternoon as a
compact upper trough (moving east from lake michigan attm) and
nose of a 60kt, 300 mb jet to its south adds moderately strong
meso-b lift across the state this afternoon and evening.

Fairly linear vertical shear favors multi-cell tsra clusters
(with some mini bows echoes) that will form in one or two waves
across the central mtns this afternoon, and push gradually east
during the afternoon and early evening hours.

Localized very heavy rain of over one inch in just a 30 minute
period will occur where several showers and thunderstorms train
over the same locations, mainly SE of a kaoo to kunv and kelm

Forecast high temps (ranging from the low 80s in the north to
l90s in the middle and lower susq valley) may need to be trimmed
by 1-2 deg f in many some locations based of the rather
extensive showers and mid clouds across the northwest half of
the state this morning.

After the most potent tsra gradually diminishes and moves SE of
the region this evening, the CWA will be sandwiched between a
pair of cold fronts with the potential for some clearing and
and formation of valley fog (mainly in the deeper, northern pa
valleys containing the larger streams, creeks and rivers).

Short term Thursday through Friday night
A secondary sfc cfront and cfa dropping SE from the glakes
Thursday should trigger a few afternoon showers tsra across
the region. Er range mainly the SE half of pa. 700 mb temps
will likely cool off by at least 2-3c during the day Thursday.

Trailing upper trough, the mdtly strong uvvel within the
thermally direct re region of an upper level jet MAX will be
riding over the secondary frontal boundary that will slow down
or stall out temporarily somewhere across central or southern pa
as the flow aloft backs Thursday into Friday.

Depending on the exact location of the quasi-stnry front and
area of enhanced lift beneath the re region of the upper jetlet,
there could even be a few periods of steady light, to briefly
moderate rain across central or northern pa and some elevated
tsra cores. Rainfall amounts later Thursday afternoon into
Friday should total a few to several tenths of an inch.

Conditions should improve from west to east late Friday, and
into the upcoming weekend.

Long term Saturday through Tuesday
An extensive area of high pressure will bring fair and dry
weather to central pa this weekend. Heading into next week, the
question will be how quickly can return flow moisture make it
back into the area? GFS is rather bullish early next week in
contrast to the ECMWF which favors continuation of dry wx. These
models seem to agree that developing southeast low level flow
may advect clouds into the area which could result in lower
highs mon-tue. Given the uncertainty, the day 4-8 ndfd forecast
closely follows the national blend of models (nbm) which shows
a gradual increase in low chance pops mon-tue.

Temperatures over the weekend will be near to slightly below
average with pleasant and warm afternoons and comfortably cool
nights. Another brief hint of autumnlike air with september
right around the corner. As mentioned above, could see temps
trend a bit lower early next week before moderating through

Aviation 10z Wednesday through Sunday
Coverage of showers across the western airspace should trend
lower as they drift eastward through the morning before ramping
back up again this afternoon evening. Cloud cover should limit
fog formation this morning but some lower ceilings are possible
especially across the western airfields. A cold front will push
slowly northwest to southeast across the airspace late tonight
through Thursday with high pressure building in by Friday.

Thu... Pm thunderstorms southern 1 2.

Fri... Chance of showers southern 1 4.

Sat-sun... Am fog possible.

Ctp watches warnings advisories

Synopsis... Lambert
near term... Lambert
short term... Lambert
long term... Steinbugl
aviation... Steinbugl

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Williamsport - Lycoming County Airport, PA26 mi41 minN 010.00 miPartly Cloudy73°F68°F84%1013.1 hPa

Link to 5 minute data for KIPT

Wind History from IPT (wind in knots)
Last 24hrN3Calm--Calm3CalmCalmCalm3----SE4E3SE3------------3--SW4Calm
1 day agoE5CalmW4--5W74S5--W8W7W5CalmCalmCalm----------CalmCalm--NW3
2 days agoCalm----3E4S7S8--W11

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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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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Wind Forecast for State College, PA (7,2,3,4)
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Ground Weather Radar Station Binghamton, NY
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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.