Monday, October23, 2017 L-36.com


Marine Weather and Tides
West Homestead, 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 7:39AMSunset 6:28PM Monday October 23, 2017 9:56 PM EDT (01:56 UTC) Moonrise 10:06AMMoonset 8:14PM Illumination 15% Phase: Waxing Crescent; Moon at 4 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 West Homestead , PA
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location: 40.4, -79.91     debug


Area Discussion for - Pittsburgh, PA
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Fxus61 kpbz 240102
afdpbz
area forecast discussion
national weather service pittsburgh pa
902 pm edt Mon oct 23 2017

Synopsis
Low pressure will maintain shower chances and cool temperatures
through mid week.

Near term until 6 am Tuesday morning
The late eve update featured tweaks to hourly trends of
temperature. Remaining forecast remains on track.

Previous...

changes for the early eve update included timing adjustments to
precip based on the advance of rain-focusing boundaries which
the latest high res runs have captured well. In addition, gust
magnitude was increased in the immediate downslope areas of the
ridges - that potential is not expected to be long-lived as a
quick veer toward the south is anticipated with passage of a
prefrontal trough.

Otherwise, the deep closed low digging over the great lakes
will be compromised by encroaching dry air. Rainfall so has
been limited to about a half inch in general. Flood problems are
not anticipated given rapid progression of embedded shower-
cells and the encroachment of that dry slot this evening.

Short term 6 am Tuesday morning through Wednesday night
The closed upper low will linger in the great lakes region tue
and wed, with likelihood of precipitation being moderated by dry
air being wrapped into the upper circulation.

After a showery day on tue, the system's dry slot will shift the
brunt of precipitation ewd, and any remaining showers will be
driven by the cold pool aloft as the trough meanders ewd.

There is a non-zero possibility of snow showers in the ridges
wed night as cold air invades, but precipitation may be ending
by the time the air cools sufficiently for accumulation.

Owing to the presence of the strong trough, temperature will be
seasonal to below average for the time of year, with maxima in
the low-mid 50s common by wed.

Long term Thursday through Monday
A quasi-zonal flow pattern will take shape Thu and Fri in the
wake of the early-week trough. However, a deep upper trough will
be carved out in the central CONUS by fri, and a cold front will
surge ewd, approaching the region by Fri evening.

Thu and Fri seem quite likely to be dry as moisture and lift
will be lacking. However, the weekend likely will be wet and
colder than recent days, as the deep trough is slow to depart.

Aviation 01z Tuesday through Saturday
Vfr with occasional MVFR conditions in showers should continue
through the evening with approaching low pressure and
associated cold front. MVFR stratocu is progged later tonight
after fropa, and this should be maintained part of Tue under an
upper trough and cold advection. Stratocu heights should return
toVFR levels by late afternoon with mixing.

A sufficiently tight pressure gradient should maintain gusty
s-sw winds through most of Tuesday.

Outlook
Upper troughing should maintain periodic restrictions through
early Thursday. Restrictions are likely with a Sat cold front.

Pbz watches warnings advisories
Md... None.

Oh... None.

Pa... None.

Wv... None.



Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pittsburgh - Allegheny County Airport, PA4 mi64 minSE 63.00 miRain Fog/Mist55°F53°F93%1008.5 hPa
Pittsburgh, Pittsburgh International Airport, PA18 mi66 minSE 105.00 miLight Rain Fog/Mist56°F55°F100%1008.5 hPa

Wind History from AGC (wind in knots)
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Last 24hrSE8
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1 day agoS4SE4S6SE5S5S5SE4S5SE6SE5SE6SE4SE5SE7S7S55SE6S9S4S3SE3CalmE5
2 days agoS5S5SE5SE6SE4SE5SE4S5SE7SE4SE6SE4S5SE4SE5S6SW3S4S5SE6SE3S4S5S4

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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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Mid-Atlantic    EDIT
Geos

Wind Forecast for Pittsburgh, PA (21,6,7,8)
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Ground Weather Radar Station Pittsburgh, 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.