Monday, June26, 2017 L-36.com


Marine Weather and Tides
Whitaker, 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 5:49AMSunset 8:55PM Monday June 26, 2017 6:27 PM EDT (22:27 UTC) Moonrise 7:46AMMoonset 10:08PM Illumination 8% 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
    EDIT      (on/off)   Help
7 Day Forecast for Marine Location Near Whitaker , PA
   Hourly   EDIT   Help
location: 40.4, -79.89     debug


Area Discussion for - Pittsburgh, PA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 kpbz 262141
afdpbz
area forecast discussion
national weather service pittsburgh pa
541 pm edt Mon jun 26 2017

Synopsis
Upper low pressure will maintain cooler temperature and a periodic
shower chance for the first half of the week.

Near term until 6 am Tuesday morning
Showers and thunderstorms initially triggered by lake erie lake
breeze are continuing to blossom this evening, as the first of
two upper-level shortwave troughs swing through. Steep lapse
rates, bolstered by continued cooling in the mid-levels, will
keep the threat of scattered thunderstorms going through the
evening, primarily north of pittsburgh. Even still, only modest
sbcape exists to go along with marginal vertical shear values.

While a stronger thunderstorm with small hail cannot be ruled
out, widespread deep convection is not expected.

A second, more vigorous shortwave trough will approach tonight
bringing another round of scattered showers. This wave,
clearly evident on water vapor over lake michigan, is
responsible for numerous thunderstorms stretching from western
il through western oh. These will continue to push east late
this evening, and reach our westernmost zones just after 00z.

Latest hi-res models, which have a good handle on the current
situation, show a downward trend in coverage and intensity upon
arrival. Given the unfavorable timing in a stabilizing
atmosphere, this downward trend seems prudent. Consshort (with a
higher rap weight) was utilized heavily for construction of
overnight pops. While some elevated instability does remain
overnight, will keep thunder out of the forecast as it should be
very isolated.

Overnight lows will again will run 10 degrees below normal.

Short term 6 am Tuesday morning through Thursday
Cold troughing will keep isolated showers in play through the
morning but will diminish by the afternoon with the upper
trough axis to the east. Temperatures will again be well below
normal but by Wednesday temperatures will begin to moderate as
flow aloft flattens ridges in response to a trough digging
across western canada. Warmth and humidity are forecast to
enhance via southerly boundary layer flow as that trough
progresses over the northern plains upper midwest, and precip
chances escalate as ejected energy slides over the lakes and
spawns convection by Thursday.

Long term Thursday night through Monday
The aforementioned trough associated cold front is projected across
the great lakes and upper ohio regions next weekend. Precip is
thus likely but temperature in the wake of the system is
expected to remain near the seasonal averages given the lack of
amplitude in the progged flow pattern.

Aviation 22z Monday through Saturday
PrevailingVFR with diurnal CU expected today as we remain in
the cold upper trough. Scattered showers and a few thunderstorms
are possible both this afternoon and again on Tuesday with the
passage of upper level shortwaves within the trough. Confidence
is highest north of pit so this is where vicinity mention will
be made. Restrictions will be brief, if a shower passes
overhead. Otherwise, MVFR cloud deck may be possible, again with
greatest confidence up north, in the morning hours before
lifting with expected mixing tomorrow afternoon.

Wind gusts to 20kts are possible both afternoons.

Outlook
Next chance for widespread restrictions comes with the approach
of frontal boundary at the end of the week.

Pbz watches warnings advisories
Md... None.

Oh... None.

Pa... None.

Wv... None.



Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Pittsburgh - Allegheny County Airport, PA4 mi35 minW 11 G 2210.00 miMostly Cloudy69°F46°F44%1016.7 hPa
Pittsburgh, Pittsburgh International Airport, PA19 mi37 minSW 1110.00 miPartly Cloudy71°F48°F46%1017.1 hPa

Wind History from AGC (wind in knots)
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
Last 24hrW11
G17
W5NW7NW5W5W8W7SW6SW8SW7SW8SW7SW8SW7SW9W9W8
G16
W13
G20
W17
G23
SW12
G18
W13
G20
SW11
G23
W11
G20
W11
G22
1 day agoW10
G18
W7W7SW6W8SW6W5W3W3W5W4W6W6W6W7W7W11
G17
W8
G22
W12
G19
W11
G18
W13
G23
W12
G21
W12
G22
W12
G21
2 days agoNW6CalmSW4S4SW4W8W5W7W7W6
G16
W9W6W7W10W9W9W10
G16
W13
G18
SW12W11
G22
W14
G24
W13
G24
W14
G22
W12
G17

Tide / Current Tables for
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Mid-Atlantic    EDIT
Geos

Wind Forecast for Pittsburgh, PA (18,4,5,8)
      (on/off)   Help

Ground Weather Radar Station Pittsburgh, PA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.