Monday, December16, 2019
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Marine Weather and Tides
West Homestead, 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 7:34AMSunset 4:55PM Monday December 16, 2019 9:01 AM EST (14:01 UTC) Moonrise 9:46PMMoonset 11:22AM Illumination 77% Phase: Waning Gibbous; Moon at 20 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 161059 AFDPBZ

Area Forecast Discussion National Weather Service Pittsburgh PA 559 AM EST Mon Dec 16 2019

SYNOPSIS. A wintry mix of precipitation is expected through Tuesday with crossing low pressure.

NEAR TERM /THROUGH TONIGHT/. Added a few more counties to the Winter Weather Advisory this afternoon through Tuesday morning. Latest models have trended colder aloft, with a band of heavier precip possible with enhanced lift late this afternoon and evening. This precip should also result in additional cooling aloft. Concern with the trend and timing of the precip around the afternoon/evening commute, so issued a quick expansion of the advisory for this potential.

Previous . An initial lead shortwave ahead of an approaching Central CONUS trough continue to support mainly light snow across the region this morning. Areas generally S of I 70 could see a brief period of light freezing rain before the precip ends this morning, so continued the Winter Weather Advisory for that area.

Precip should diminish for most areas later this morning as the shortwave support exits. Areas near Garrett county MD should still see freezing rain through the day, where they are situated close to a stationary sfc front. SE upslope flow should keep sfc temps there below freezing.

Precipitation should increase again late this afternoon and tonight as another shortwave approaches in SW flow aloft ahead of the main trough. Warm advection should also result precip changing to mainly rain tonight roughly S of a ZZV-LBE line, with model soundings and critical thicknesses indicating a wintry mix of snow, sleet and freezing rain to the north of this line. Issued a Winter Weather Advisory for this area beginning late in the afternoon. The Laurel Highlands and Garrett county MD should continue to see freezing rain as the E-SE flow maintain sfc temps at or below freezing. Issued an advisory for the Laurel Highlands through Tuesday morning, and extended the Winter Storm Warning for Garrett County MD also.

Locally heavy rainfall is also possible tonight especially S of I 70 as a jet aloft enhances lift, and a sfc low tracks across WV.

SHORT TERM /TUESDAY THROUGH WEDNESDAY NIGHT/. The wintry mix should change to all snow in cold advection Tuesday as the sfc low moves E/NE of the area, and the upper trough crosses, though accumulation should be light. A reinforcing trough and sfc cold front should result in scattered snow showers Wednesday they track across the NE CONUS. The snow showers should gradually diminish Wednesday night as high pressure builds in. Temperatures should average below seasonable levels.

LONG TERM /THURSDAY THROUGH SUNDAY/. Generally dry weather is expected Thursday and Friday as ridging sets up across the region ahead of an approaching trough. The trough should return slight/low chances for snow showers Saturday before dry weather returns under high pressure Sunday.

AVIATION /12Z MONDAY THROUGH FRIDAY/. Restrictions expected through the TAF period. Precipitation and IFR restrictions will resume this evening as low pressure approaches the region. A wintry mix is expected with the primary ribbon of FZRA and/or sleet running along a line roughly from ZZV to DUJ. Farther north of this line will likely see more snow . and south of the line will lean more towards rain.

Outlook. Restrictions are likely through Tuesday with crossing low pressure.

PBZ WATCHES/WARNINGS/ADVISORIES. MD . Winter Storm Warning until 11 AM EST Tuesday for MDZ001. OH . Winter Weather Advisory from 4 PM this afternoon to 11 AM EST Tuesday for OHZ039>041-048>050-057-058. Winter Weather Advisory until 10 AM EST this morning for OHZ057>059- 068-069. PA . Winter Weather Advisory from 4 PM this afternoon to 11 AM EST Tuesday for PAZ007>009-013>016-020>023-029-073-074-076. Winter Weather Advisory until 10 AM EST this morning for PAZ031-075- 076. WV . Winter Weather Advisory from 4 PM this afternoon to 11 AM EST Tuesday for WVZ001-002. Winter Weather Advisory until 10 AM EST this morning for WVZ003-004- 012-021-509>514.




Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pittsburgh - Allegheny County Airport, PA4 mi68 minNNE 42.50 miFog/Mist30°F28°F92%1020.9 hPa
Pittsburgh, Pittsburgh International Airport, PA18 mi70 minNE 56.00 miFog/Mist29°F26°F89%1021.8 hPa

Link to 5 minute data for KAGC

Wind History from AGC (wind in knots)
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2 days agoSE5E4CalmCalmN3NE3CalmNE3SE3E5E4CalmNE3NE3NE4CalmCalmN3N3CalmCalmN3NW5NW5

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    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 (9,2,3,4)
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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.