Friday, January19, 2018 L-36.com


Marine Weather and Tides
Powhatan Point, OH

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 5:28PM Friday January 19, 2018 6:13 PM EST (23:13 UTC) Moonrise 9:13AMMoonset 8:04PM Illumination 10% Phase: Waxing Crescent; Moon at 3 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 Powhatan Point, OH
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location: 39.88, -80.91     debug


Area Discussion for - Pittsburgh, PA
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Fxus61 kpbz 192255
afdpbz
area forecast discussion
national weather service pittsburgh pa
555 pm est Fri jan 19 2018

Synopsis
High pressure provides dry and milder weather through Saturday.

Light rain chances return by Sunday, with a period of steadier
rain possible by Monday night. Cooler weather returns for the
middle of next week.

Near term through Saturday
Mainly cirrus is expected through the night as high pressure
slides to the east and warm advection continues. Low
temperatures will end up above normal and could be achieved
fairly early during the night. Values may steady or rise
slightly overnight as the column remains mixed, although any
valleys that manage to decouple could cool more than forecast
given the remaining snowpack.

Warm advection resumes relatively unabated with gusty
southwesterly flow continuing on Saturday. Snowmelt should begin
in earnest as temperatures rocket into the 40s, however the
increase in boundary layer moisture should allow for stratus to
develop by the end of the day as the boundary layer moistens up
a bit. Fries

Short term Saturday night through Sunday night
An upper trough will trudge eastward during this period, from
the pacific coast and across the rockies to the plains by Sunday
night. While flow aloft remains quasi-zonal across our region,
low-level southwest flow will continue the warming trend. High
temperatures in the 40s both Saturday and Sunday will help to
melt much of the snow pack.

Clouds will be on the increase Saturday, with a lower
stratocumulus deck possibly arriving by the afternoon. Enough
moisture should be advected in on weak low- level isentropic
lift to support drizzle or light rain starting Saturday night
and continuing into Sunday night. Lift and forcing remain weak
through this period, and minimal QPF of around or less than a
tenth of an inch is forecast in general. There is still a small
concern that freezing rain drizzle may be possible mainly north
of pittsburgh for a time Saturday night, depending on how
quickly the boundary layer can cool during the evening. Chances
of that remain low however, and do not merit even an hwo mention
at this point.

Long term Monday through Friday
As the vertically-stacked low crosses the mississippi valley and
the great lakes Monday and Tuesday, a crossing cold front will
provide the focus for the next chance of organized rainfall,
mainly Monday afternoon and night. The moisture plume ahead of
the front remains deep but fairly narrow, and the system is
still expected to be progressive as the upper trough takes on a
negative tilt. Models and ensembles have been fairly consistent
in keeping the QPF under control with this system, generally a
half-inch or less. Given the loss of much of the snow pack prior
to this, large-scale flooding issues are still not projected to
be a concern. However, localized issues due to ice jams will
remain quite possible, and this threat has been addressed in the
hwo for now.

Behind the system, temperatures will drop back to seasonable
levels for Tuesday and Wednesday, with any lingering showers
turning over to snow by Tuesday night. A minor ridge
accumulation is possible during this period. High pressure
should allow Thursday and Friday to feature dry weather and
another warming trend to close out the week.

Aviation 00z Saturday through Wednesday
Vfr will prevail for much of the period as high pressure remain
in place. Diurnal mixing will support a ssw with gusts to 20kts
both tomorrow afternoon. Model guidance suggest moisture,
trapped under building inversion aloft may lead to some
late afternoon and evening restrictions tomorrow. It would seem
this should take until after diurnal mixing starts to abate,
however, so it was generally restricted to the very end of the
period or beyond.

Outlook
Restriction potential returns with the new week and an
approaching frontal 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
Wheeling, Wheeling Ohio County Airport, WV24 mi80 minSW 1110.00 miFair39°F17°F41%1018 hPa

Wind History from HLG (wind in knots)
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1 day agoSW6SW7SW7SW6SW7SW8S10SW8SW10SW11SW10S11S11SW9
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2 days agoW8W11W9SW5CalmSW5W5W6W4W7W6W6W5W4W5W4W5SW9SW6W7W6W6W7SW5

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
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IR Satellite Image from GEOS
east_satellite

GOES Local Image of Mid-Atlantic    EDIT
Geos

Wind Forecast for Pittsburgh, PA (18,4,5,8)
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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.