Wednesday, September19, 2018 L-36.com


Marine Weather and Tides
Williams, MA

Version 3.4
What's New / NOTES
9/17/2018 XTide broke when 1and1 "upgraded" my server. It has been esculated. I am sorry for the problem.

Sunrise 6:36AMSunset 6:56PM Wednesday September 19, 2018 12:18 PM EDT (16:18 UTC) Moonrise 4:18PMMoonset 1:08AM Illumination 72% Phase: Waxing Gibbous; Moon at 10 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 Williams, MA
   Hourly   EDIT   Help
location: 42.71, -73.2     debug


Area Discussion for - Albany, NY
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 kaly 191351
afdaly
area forecast discussion
national weather service albany ny
951 am edt Wed sep 19 2018

Synopsis
Cloud coverage will gradually diminish for partial sunshine
today with high pressure building into the region and
comfortable humidity levels. However, a warm front will approach
the region later Thursday into Thursday night. This will usher
back more moisture ahead of a strong cold front for Friday where
the threat of showers and thunderstorms will be on the
increase.

Near term through tonight
As of 950 am edt... Still dealing with plenty of cloud cover
across much of the region this morning due to moisture trapped
beneath a strong inversion at 850 mb. However, there are some
breaks in the clouds across the southern berkshires litchfield
hills and the western mohawk valley. As deeper mixing occurs
this afternoon, the clouds should tend to scour out for at least
a mix of sunshine and clouds in most locations. Will increase
cloud cover into early afternoon to reflect current trends.

Otherwise, a somewhat subtle cold front continues to slowly
progress southward across the region today, which will allow for
dewpoints to drop further. As the cold front clears the region
later today, so should the clouds and allow for partial
sunshine. Question will be additional stratus developing through
the day that mesoscale models suggest within the 900-800 mb
layer. We will account for this with higher cloud percentage for
the terrain. Highs today will be more seasonable with mainly
70s expected for valley locations to mid-upr 60s elsewhere.

Tonight the stratus may linger across western new england as the
surface high settles across northern new england. This resembles
a cold-air damming signature which could lock in the stratus
for those areas overnight. This stratus may again spread under
the inversion during the night as we will go with a partly
cloudy sky evolving. This will keep temperatures mainly in the
50s with some upper 40s across the dacks and lake george region.

Short term Thursday through Friday
Thursday... Developing warm front across the great lakes region
and return of higher theta-e air advects northward. This should
allow for elevated convection to track across the great lake
state and into western ontario during the day. Per the
increasing magnitudes of the low level jet upstream, convection
is expected to continue and may spread east and south but just
how far south remains to be seen. For now, we will keep pops
below slight chance as low level moisture profiles look rather
dry at the present time. Cloud coverage will be increasing which
will cut back on insolation and temperatures. Highs will
generally fall into the 65-70 degree range.

Thursday night... Warm front will be lifting across the region
where some showers are possible, especially into portions of the
dacks where will continue with the likely pops. Otherwise, ample
stratus should advect into the region with overnight lows
initially falling during the evening then likely holding steady
or slowly climbing overnight from a range of 55-60f then
moderating to around 60f.

Friday... We will become well entrenched in the warm sector as
impressive cyclone tracks northeast across the central great
lakes. Impressive wind field across the region as we set the
stage for a potentially active period of weather later in the
day as the storm prediction center day 3 outlook has the entire
region in the slight risk. Highs Friday climb toward 80f for
valley locations with strong southwest wind assisting with
downsloping and some breaks of the sunshine and 70s elsewhere.

Long term Friday night through Tuesday
A cold front will track through our region Friday night as a low
pressure system lifts into quebec. The timing of the frontal passage
appears to be after the peak heating of the day. However, SPC has
placed the entire forecast area in a slight risk for severe weather,
specifically for a damaging wind threat, which may linger into the
evening and overnight as the front approaches and passes through the
region. Overnight lows will stay on the mild side for most
locations, but will be dependent on how quickly the showers and
front pass through. The coolest spots should be across the high
terrain locations.

The front and any lingering shower activity should be through the
forecast area by Saturday morning. Drier and cooler air will begin
to filter in throughout the day on Saturday as high pressure builds
into the region from the great lakes. This will result in seasonable
temperatures in the 60s. Sunday will also remain dry and seasonable
with more sunshine than Saturday.

Next week looks like it could be on the wet side as several pieces
of energy lift northeastward along the upper ridge axis through new
york. There is still quite a spread in model guidance for this time
frame, so for now have kept rain chances in the forecast Monday
through at least Wednesday. Temperatures look fairly seasonable
Monday-Tuesday but may warm back into the mid 70s by Wednesday.

Aviation 14z Wednesday through Sunday
MVFR ifr CIGS and vis should slowly improve toVFR between 14z-
16z this morning. Conditions are expected to remainVFR through
the remainder of the day. Under the influence of high pressure
with mostly clear skies and light winds, radiational fog may be
possible overnight tonight.

Winds will become north to northeast behind the front this
morning at 5-10 kt which should continue through the day. Winds
will be nearly calm tonight.

Outlook...

Thursday night: moderate operational impact. Chance of shra.

Friday: moderate operational impact. Breezy chance of shra... Tsra.

Friday night: high operational impact. Breezy likely shra... Tsra.

Saturday: no operational impact. No sig wx.

Saturday night: no operational impact. No sig wx.

Sunday: no operational impact. No sig wx.

Sunday night: no operational impact. No sig wx.

Monday: no operational impact. No sig wx.

Fire weather
High pressure will gradually build into the region today,
providing drier, cooler and less humid weather. Seasonable
temperatures are expected through Thursday. An approaching warm
front will bring the next chance of rain late Thursday into
Friday.

Minimum rh values of between 50 and 60 percent this afternoon.

Rh values will increase to around 90 to 100 percent again
tonight.

Winds becoming northerly today 10mph or less. Winds tonight
will be northerly around 5 mph.

Hydrology
Dry weather is forecast through early Thursday. The next chance
of some rainfall will be late Thursday into Friday, as a warm
front advances northward across the region. Best chances look to
be across the northern half of the area.

A cold front will bring additional showers and perhaps some
thunderstorms Friday afternoon and night. Then drier weather is
expected to return for the upcoming weekend into early next
week.

For details on specific area rivers and lakes,
including observed and forecast river stages and lake
elevations, please visit the advanced hydrologic prediction
service AHPS graphs on our website.

Aly watches warnings advisories
Ct... None.

Ny... None.

Ma... None.

Vt... None.

Synopsis... Bgm
near term... Bgm jpv
short term... Bgm jpv
long term... Jvm
aviation... Jvm
fire weather... Bgm jpv
hydrology... Bgm jpv


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ANMN6 - Hudson River Reserve, NY 61 mi49 min 71°F 1014 hPa66°F

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
North Adams Harriman-and-West Airport, MA2 mi27 minW 510.00 miFair70°F61°F73%1014.2 hPa
Bennington Morse State Airport, VT13 mi25 minW 410.00 miPartly Cloudy71°F61°F71%1014.5 hPa
Pittsfield Municipal Airport, MA20 mi25 minN 410.00 miOvercast72°F59°F64%1011.9 hPa

Wind History from AQW (wind in knots)
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
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
Last 24hr3--4W73CalmCalmCalmCalmCalmCalmW3W6SW3CalmCalmSW4CalmE3NE3455W5
1 day agoCalm5CalmS6W63CalmCalmCalmCalmCalmE43SE4NE43CalmW3N3CalmCalmS5SW44
2 days agoCalmNW633W4CalmCalmCalmCalmCalmCalmCalmCalmCalm3CalmCalmCalmCalmCalmE6E7CalmSW6

Tide / Current Tables for Troy, Hudson River, New York
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Albany, New York
   EDIT      (on/off)   Help   One Week of Data
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
GOES 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 Albany, NY (12,3,4,5)
      (on/off)   Help

Ground Weather Radar Station Albany, NY
   (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.