Marine Weather and Tides
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.
|Sunrise 7:05AM||Sunset 5:03PM||Thursday November 15, 2018 2:57 PM EST (19:57 UTC)||Moonrise 1:27PM||Moonset 12:00AM||Illumination 53%|
7 Day Forecast for Marine Location Near West Homestead , PAHourly EDIT Help
Area Discussion for - Pittsburgh, PA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus61 kpbz 151732|
area forecast discussion
national weather service pittsburgh pa
1232 pm est Thu nov 15 2018
A low pressure system will continue to bring a mixed bag of
precipitation to the area through Thursday night. Afterwards,
an extended period of cool and mostly dry weather is expected.
Near term through tonight
A wintry mix continues across much of the area. As of noon
Thursday, the temperature has climbed above freezing from
approximately muskingum county oh towards monongalia county wv.
As a result, have dropped the winter weather advisory in this
area as freezing rain is no longer a threat. Elsewhere, a mixed
bag of precipitation continues. The 12z pbz sounding shows
considerable warm air (4+ degrees c) between 750 and 900mb.
This has resulted in hydrometeors melting in this layer and
refreezing on surfaces across areas below freezing.
The surface temperature along south of i-80 will likely rise
above 32 in the next few hours so that a transition from fzra to
ra will likely be observed. This may be short-lived as the
comparatively cold mid-level system enters the area. With
colder mid-level air in place, precipitation will transition
back towards a wintry mix, and eventually all snow. This
transition will likely take place along north of i80 by around
sunset and elsewhere by 10pm or shortly thereafter.
Snow accumulation will be highest in the north and along the
ridges, where 6+ inches is possible. The pittsburgh metropolitan
area will likely see varying accumulation from upwards of 3
inches along hilltops to possibly just a dusting in the
vicinity of downtown pgh. Of course, exact amounts may vary on
exact placement of mesoscale banding around the low tonight.
Snow totals will be updated as needed.
Snow accumulation will be minimal back towards eastern ohio and
the ohio river valley area of wv, where just a brief dusting is
Short term Friday through Saturday
Colder air will overspread the area tonight and fri, with a
return to snow as the upper low rushes eastward.
As cold advection strengthens on Fri and Fri night in the wake
of the upper system, so will low-level instability and moisture,
leading to an increase in lake-enhanced showers downwind of
Long term Saturday night through Wednesday |
The wx pattern thru the remainder of the forecast will be
dominated by a wrn-conus longwave ridge and ern-conus longwave
trough, with precipitation chances dictated by particular
shortwave troughs embedded in the flow.
On the whole, temperature will average below seasonal levels,
with sporadic episodes of lake-enhanced showers as currently-
unresolved disturbances materialize.
Aviation 18z Thursday through Tuesday
An incoming storm system will bring a wintry mix of
precipitation throughout the area today, changing over to snow
late tonight into early Friday morning. Confidence remains high
that this precipitation will bring notable restrictions to cigs
and visibility, though the exact timing of the lowering
restrictions is a little less certain.
Confidence remains low as to the exact precipitation types and
the times of change overs at each terminal. The 00z kpit
sounding shows a significantly dry vertical profile, meaning
that wet bulb effects from incoming precipitation will greatly
impact the overall temperature profile. This wet bulb effect is
poorly handled by models, leaving little confidence on how much
cooling from precipitation will counteract the incoming 850mb
warm air advection. Tafs reflect best guess, with hedges to the
latest hrrr data.
cig restrictions should continue through Saturday under broad
upper troughing, with widespread restrictions possible with a
Sunday cold front.
Pbz watches warnings advisories
Md... Winter storm warning until 1 am est Friday for mdz001.
Oh... Winter weather advisory until 7 pm est this evening for
Pa... Winter weather advisory until 7 pm est this evening for paz013-
Winter storm warning until 7 am est Friday for paz009-015-016.
Winter storm warning until 1 am est Friday for paz023-074-076.
Winter weather advisory until 1 am est Friday for paz007-008-
Wv... Winter weather advisory until 7 pm est this evening for
Winter storm warning until 1 am est Friday for wvz512>514.
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Pittsburgh - Allegheny County Airport, PA||4 mi||65 min||ENE 7||2.50 mi||Light Freezing Rain Fog/Mist||32°F||30°F||96%||1018.7 hPa|
|Pittsburgh, Pittsburgh International Airport, PA||18 mi||67 min||E 7||3.00 mi||Light Freezing Rain Fog/Mist||32°F||30°F||96%||1019 hPa|
Wind History from AGC (wind in knots)
|1 day ago||NW|
|2 days ago||Calm||Calm||Calm||SE||SE||E||E||Calm||Calm||N||N||NW||N||N|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help
EDIT (on/off)  Help
Weather Map and Satellite Images(on/off)  HelpWeather Map
GOES 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 (14,3,4,5)(on/off)  Help
Ad by Google
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.