Friday, December13, 2019
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Marine Weather and Tides
Whitaker, PA

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
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 7:32AMSunset 4:55PM Friday December 13, 2019 7:39 PM EST (00:39 UTC) Moonrise 6:24PMMoonset 8:52AM Illumination 95% Phase: Waning Gibbous; Moon at 17 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 Whitaker , PA
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location: 40.4, -79.89     debug


Area Discussion for - Pittsburgh, PA
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FXUS61 KPBZ 132347 AFDPBZ

Area Forecast Discussion National Weather Service Pittsburgh PA 647 PM EST Fri Dec 13 2019

SYNOPSIS. Widespread rain is expected tonight and Saturday with crossing low pressure. Rain will mix with, and eventually change to snow showers later Saturday, with sub-advisory snow accumulation expected.

NEAR TERM /UNTIL 6 AM SATURDAY MORNING/. Light rain will gradually increase in both coverage and intensity as moist advection ensues in SW flow on the van of an encroaching shortwave trough. With modest upper support for ascent and the presence of deep layer moisture within the boundary layer, precipitation should generally increase to a more steady, moderate rainfall after midnight and continue through Saturday morning.

SHORT TERM /6 AM SATURDAY MORNING THROUGH SUNDAY NIGHT/. As the shortwave deepens and cold advection prevails, rain should change to snow late Saturday. No significant accumulation is expected, though colder areas across the higher terrain could see a couple of inches.

Snow shower chances should continue in the ridges Sunday with prolong upsloping and residual low-level moisture. A sfc trough advancing across Lake Erie/NW PA may initiate scattered snow showers near I-80. High pressure should return dry weather Sunday afternoon, though snow chances return late night with another approaching Central CONUS trough and associated sfc low.

LONG TERM /MONDAY THROUGH FRIDAY/. Rain and snow chances return Monday and early Tuesday as the trough and sfc low track across the region. With NW flow prevailing Wednesday through Thursday isolated snow showers could linger due to lake enhancement and upsloping.

AVIATION /00Z SATURDAY THROUGH WEDNESDAY/. IFR conditions will prevail through much of the TAF period for all sites. Light rain will gradually increase in coverage overnight and tomorrow morning as moisture increases in southwest flow ahead of an approaching trough.

Model consensus supports a prolonged period of IFR with periodic LIFR conditions as precipitation intensifies tomorrow morning and early afternoon under healthy upper-level support.

Snow likely then mix with rain tomorrow afternoon and evening as colder air filters in. Improvement to MVFR is possible late Saturday as precipitation gradually decreases in wake of the departing trough. However, ensuing northwest flow will keep ceilings low in gradually-- likely in MVFR territory, for at least the remainder of Saturday night.

Outlook. Restrictions are likely again on Monday and Tuesday with the crossing of another low pressure system.

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 mi46 minESE 54.00 miFog/Mist40°F39°F97%1014.4 hPa
Pittsburgh, Pittsburgh International Airport, PA19 mi48 minN 00.25 miFog/Mist37°F35°F93%1014.9 hPa

Link to 5 minute data for KAGC

Wind History from AGC (wind in knots)
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Last 24hrSE7SE7SE6SE5SE5SE6SE7SE5SE7SE6SE6SE5SE6SE4SE5E4CalmCalmN3NE3CalmNE3SE3E5
1 day agoW10
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NW8NW9NW4NW3W4NW4E3SE5SE3E4SE3SE5SE5S4S54SE8SE5SE7CalmCalmSE5
2 days agoW9
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Tide / Current Tables for
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Tide / Current Tables for
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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 Pittsburgh, PA (19,4,5,8)
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Ground Weather Radar Station Pittsburgh, PA
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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 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.