Friday, December15, 2017 L-36.com


Marine Weather and Tides
Rhinecliff, NY

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 7:15AMSunset 4:27PM Friday December 15, 2017 9:09 AM EST (14:09 UTC) Moonrise 5:34AMMoonset 4:07PM Illumination 8% Phase: Waning Crescent; Moon at 27 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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ANZ335 Long Island Sound West Of New Haven Ct/port Jefferson Ny- 610 Am Est Fri Dec 15 2017
.small craft advisory in effect from this evening through Saturday afternoon...
Today..W winds around 5 kt. Seas 1 ft or less. Chance of snow this afternoon with vsby 1 to 3 nm.
Tonight..W winds 10 to 15 kt, increasing to 15 to 20 kt with gusts up to 25 kt after midnight. Seas 2 to 3 ft. Snow likely in the evening with vsby 1 to 3 nm.
Sat..W winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft.
Sat night..NW winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas around 2 ft in the evening, then 1 ft or less.
Sun..NW winds around 5 kt, becoming sw around 5 kt in the afternoon. Seas 1 ft or less.
Sun night..SW winds around 5 kt. Seas 1 ft or less. Chance of snow. Chance of rain. Vsby 1 to 3 nm.
Mon..W winds around 5 kt. Seas 1 ft or less.
Mon night..W winds 5 to 10 kt. Seas 1 ft or less.
Tue..SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 1 ft or less, then around 2 ft in the afternoon.
Tue night..W winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 2 to 4 ft.
ANZ300 610 Am Est Fri Dec 15 2017
Synopsis for the long island waters and new york harbor.. High pressure shifts offshore this morning as low pressure over the carolinas tracks to the mid atlantic coast. This low will strengthen as it tracks northeast through the evening and continues out to sea tonight. High pressure then builds in through Sunday. A series of weak low pressure and frontal systems will pass through mid week.

7 Day Forecast for Marine Location Near Rhinecliff CDP, NY
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location: 41.94, -73.94     debug


Area Discussion for - Albany, NY
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Fxus61 kaly 151154
afdaly
area forecast discussion
national weather service albany ny
654 am est Fri dec 15 2017

Synopsis
Seasonably cold temperatures will continue through the
weekend. Moderate accumulations of lake effect snow are likely in
the western adirondacks tonight into Saturday. Elsewhere, mainly
light snow showers will be possible Saturday as a cold front passes
through the region.

Near term until 6 pm this evening
As of 640 am est, a few light snow showers this morning are
extending from lake ontario into the mohawk valley region.

Cannot rule out a few flakes reaching albany this morning as
well. Otherwise, very chilly temperatures around eastern new
york and western new england, with values below zero at glens
falls ranging up to the low teens. Further details regarding
todays forecast follow...

prev disc... The area remains under mainly flat upper level flow
as the next upper impulse digs into the longwave trough. At the
surface, weak high pressure will nose into the area this
morning and quickly exit by the afternoon as the next wave of
low pressure shifts eastward across the great lakes and as a
coastal low develops off of the carolinas. This coastal low is
expected to stay far enough offshore such that it will limit the
impacts to just some snow showers south and east of the greater
capital district (mainly in litchfield and berkshire counties).

As these weather makers shift towards the region today, low
level moisture and cloud cover will increase, leading to another
chilly and cloudy day with highs in the upper teens and lower
20s.

Short term 6 pm this evening through Saturday night
A winter weather advisory has been issued for northern
herkimer county and northern hamilton county, mainly along route
20 and west of route 30 from 10 pm this evening through 1 pm
Saturday...

the next upper level shortwave will approach and pivot through
the region tonight with an attendant surface low tracking
eastward north of the st. Lawrence valley.This should allow
winds to back such that they align with the long axis of lake
ontario for a time late tonight into early Saturday. Surface to
850 mb delta-ts will range from 20-25 c, and deeper moisture
associated with the upper level wave will enhance lake effect
processes, resulting in a period of moderate to heavy lake
effect snow for portions of the western adirondacks. Therefore,
have issued a winter weather advisory for northern herkimer and
hamilton counties from 10 pm this evening through 1 pm Saturday.

It looks like the lake effect band will shift south as the low
level winds veer northwesterly late Saturday morning. This
should allow for the dominant lake effect band to break up and
shift southward. Current forecast accumulations of 3 to 6
inches, with locally higher amounts possible support an
advisory for now but will monitor conditions to see if a warning
is needed.

Upslope snow showers may begin to occur across the higher
terrain of western new england tonight as well. Elsewhere,
clouds and a moderate wind will keep temps from falling as much
tonight compared to early this morning, although lows will
likely be below normal. Some lingering snow showers will
possibly spread toward the i-90 corridor and into the valleys
Saturday as the lake effect band shifts southward, but minimal
accumulation is expected as there is no midlevel forcing with
the height rises. A cold and dry night is expected Saturday
night with diminishing winds as high pressure builds into the
region.

Long term Sunday through Thursday
Many differences between the various operational deterministic model
guidance and ensemble solutions, the extended period remains a
rather low confidence forecast at this time.

We begin this long term period with a cut-off low across the four
corners region with a short wave ejecting out of this system across
the plains and through the ohio valley then into the northeast
corridor Sunday night. The upper flow will be rather confluent as
broad isentropic lift and overrunning evolves through the evening
hours. A period of light snow is expected overnight which could
make a tricky morning commute Monday morning.

This aforementioned wave departs off the new england coastline
Monday morning with perhaps a narrow ridge of high pressure tracking
across the region before the next upstream disturbance approaches.

This is when models diverge a bit as waves across canada will
eventually dictate the synoptic pattern through most of next week.

All global models suggest a deepening surface low across central
canada but differ significantly on placement and intensity. Its
downstream impacts will be the approach of a cold front for Tuesday
into Tuesday night. The GFS is quite aggressive with the ggem the
least aggressive but all suggest frontal passage to occur by Tuesday
evening. So the chance of rain snow showers as h850 temperatures
moderate to near or above 0c before returning below freezing Tuesday
night.

This system and its cyclonic flow regime will quickly depart through
Wednesday before the next warm front and overrunning situation sets
up for the second half of the week with light precipitation chances
on the increase Thursday.

Aviation 12z Friday through Tuesday
Vfr conditions are in place this morning with light and variable
winds. Per GOES 16 data, seems some of the lake effect clouds
were making into the kalb-kpsf with sct-bknVFR decks. As this
band lifts northward, we will keep some of these restrictions
into the tafs at this time. For kpou and kgfl, should remainVFR
due to upstream higher terrain blocking some of these CIGS from
progressing eastward. Winds will become s-sw around 5 kts. Mid
level clouds will increase during the afternoon hours, with all
sites seeing bkn CIGS around 7-12 kft by late in the day.

Some lake effect snow may brush into the kalb-kpsf this evening
with upslope areas of kpsf the higher chance where we will place
a tempo group at this time.

Outlook...

Friday night: low operational impact. Slight chance of shsn.

Saturday: moderate operational impact. Breezy chance of shsn.

Saturday night: no operational impact. No sig wx.

Sunday: no operational impact. No sig wx.

Sunday night: moderate operational impact. Chance of shsn.

Monday: low operational impact. Slight chance of shra... Shsn.

Monday night: moderate operational impact. Chance of shra... Shsn.

Tuesday: moderate operational impact. Chance of ra... Sn.

Hydrology
No hydrologic problems are expected through the weekend.

Temperatures will largely remain below freezing into the
weekend, promoting ice formation on areas lakes and streams.

Any snowfall is mainly expected to be light, although moderate
accumulation of lake effect snow is expected over the western
adirondacks tonight into Saturday morning, and light to
moderate accumulation is possible over the higher terrain of
western new england as well.

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... Winter weather advisory from 10 pm this evening to 1 pm est
Saturday for nyz032-033.

Ma... None.

Vt... None.

Synopsis... Thompson jvm
near term... Jvm
short term... Thompson jvm
long term... Bgm
aviation... Frugis bgm
hydrology... Thompson jvm


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ANMN6 - Hudson River Reserve, NY 6 mi99 min 13°F 1019 hPa9°F
BRHC3 - 8467150 - Bridgeport, CT 66 mi57 min N 1.9 G 4.1 18°F 43°F1019.3 hPa

Wind History for Bridgeport, CT
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Poughkeepsie, Dutchess County Airport, NY21 mi76 minN 010.00 miFair10°F5°F80%1018.9 hPa

Wind History from POU (wind in knots)
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W9W10W8W10W10W5W3CalmSW3CalmCalmCalmCalmCalmCalmCalmCalmCalm
1 day agoW9
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Tide / Current Tables for Kingston Point, Hudson River, New York
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Kingston Point
Click for Map
Fri -- 04:33 AM EST     Moonrise
Fri -- 05:25 AM EST     -0.06 feet Low Tide
Fri -- 07:16 AM EST     Sunrise
Fri -- 11:30 AM EST     4.01 feet High Tide
Fri -- 03:07 PM EST     Moonset
Fri -- 04:25 PM EST     Sunset
Fri -- 05:59 PM EST     -0.00 feet Low Tide
Fri -- 11:50 PM EST     3.40 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.22.61.91.20.500.10.81.82.73.53.93.93.42.61.810.3-00.41.222.73.2

Tide / Current Tables for Tivoli, Hudson River, New York
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Tivoli
Click for MapNote: Values for the Hudson River above the George Washington bridge are based upon averages for the six months May to October

Fri -- 04:33 AM EST     Moonrise
Fri -- 05:55 AM EST     -0.08 feet Low Tide
Fri -- 07:17 AM EST     Sunrise
Fri -- 11:59 AM EST     4.27 feet High Tide
Fri -- 03:07 PM EST     Moonset
Fri -- 04:24 PM EST     Sunset
Fri -- 06:30 PM EST     -0.03 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.53.12.41.60.90.2-0.10.41.32.43.344.343.32.41.50.70.10.10.71.62.53.2

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Northeast    EDIT
Geos

Wind Forecast for Albany, NY (9,2,3,4)
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Ground Weather Radar Station Albany, NY
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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.