Wednesday, March29, 2017 L-36.com


Marine Weather and Tides
Castleton-on-Hudson, NY

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:39AMSunset 7:19PM Wednesday March 29, 2017 7:06 PM EDT (23:06 UTC) Moonrise 7:52AMMoonset 9:18PM Illumination 6% Phase: Waxing Crescent; Moon at 2 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 Castleton-on-Hudson, NY
   Hourly   EDIT   Help
location: 42.53, -73.77     debug


Area Discussion for - Albany, NY
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 kaly 292034
afdaly
area forecast discussion
national weather service albany ny
434 pm edt Wed mar 29 2017

Synopsis
After a dry and seasonable day on Thursday, another storm system
will impact the region for Thursday night through Saturday
morning. This storm system will bring a mix of snow, sleet and
rain to the area with several inches of heavy wet snow possible
in the higher terrain locations.

Near term /through Thursday/
Northwesterly upper flow and a ridge of high pressure will ensure
tranquil weather through the near term. Extensive cloud cover in
place north of the mid-hudson valley this afternoon will gradually
erode from south to north into this evening, becoming mostly clear
(south) to partly cloudy (north) overnight. Low temps tonight are
expected to be near seasonal normals.

A good deal of sunshine is expected much of the day Thursday, with
high and midlevel clouds increasing late. Should be good opportunity
to take advantage of the march Sun angle to send temps back to near
normal, with light northerly flow putting a ceiling on highs. Sided
toward the higher end of MOS guidance for highs.

Short term /Thursday night through Saturday/
A winter storm watch has been issued for southern vermont,
northern berkshires, hamilton and northern warren counties from
Thursday night through Saturday morning...

quite a complicated and low confidence forecast for the storm
system set to impact us Friday/Saturday. In terms of the larger
scale pattern, a stacked low pressure system will lift out of
the central plains towards the ohio valley on Thursday. This low
is expected to track to our south across the mid-atlantic
region. At the same time, another weak northern stream feature
will be approaching out of southern canada, although model
guidance suggest that these two features don't fully phase at
they head towards the eastern united states. At the surface, the
initial low will track through the ohio valley on Friday, while
another low develops east of the mountains and rapidly develops
for Friday night as it heads east towards the western atlantic
ocean.

The main driver for our weather will be the potent southern
stream system, which will have ample moisture out of the gulf of
mexico and western atlantic. As this storm approaches,
precipitation looks to break out from west to east on Thursday
night thanks to isentropic lift/warm air advection. With temps
both at the surface and in the boundary layer initially being
cold (along with wet-bulbing processes), precip looks to start
out as a period of snow for Thursday night into early Friday
morning. This will occur for both valley and high terrain areas,
with a light accumulation around 1 to 3 inches possible by the
morning commute (especially for areas west of the hudson
valley). Lows will generally be in the upper 20s to lower 30 on
Thursday night as precip begins.

The high pressure that provided the cold air mass to start will
be departing off the coast of new england on Friday morning. As
a result, through the morning hours, a persistent (although
light) east-southeast flow at low to mid levels, along with the
strong late march sunshine, will aid in warming the boundary
layer. It will be a battle between this warming and the cooling
of falling wintry precip for what p-type occurs. Ultimately,
model guidance suggest that valley areas looks to transition
over to rain or a rain/snow/sleet mix by afternoon, while higher
terrain areas remain a mix of snow/sleet. Bufkit data at
pittsfield and glen falls shows an extended period of sleet.

Whereas at albany, models indicate snow to to sleet to rain.

Warming aloft (around 800 hpa) could allow for an extended
period of sleet for some locations. The NAM model is much
stronger with the warming aloft whereas the GFS is not and keeps
the precip type more rain/snow. Therefore, there is much
uncertainty in the forecast in terms of total snow amounts and
precip type. If more sleet ends up mixing in, it will cut down
on snow totals but if temperatures remain colder, snow totals
could increase. For now, have 5 to 10 inches of snow in the
winter storm watch area where there is higher confidence of
colder temperatures and therefore more snowfall. Precipitation
will continue through dawn on Saturday as the upper low passes
by to our south but will then taper off during the morning
hours.

Temps area wide look to reach the mid to upper 30s Friday
afternoon but then drop off Friday night as winds turn out of
the north. Lows Friday night could dip into the upper 20s/low
30s in the higher terrain but remain just slightly above
freezing in the valleys. This could allow for precip to change
back over to snow Friday night.

This will all be a close call, as heavy precip could allow the
column to go isothermal at times, with precip falling as heavy,
wet snow, even in valley areas. Models and ensembles do suggest
plenty of qpf, with many showing over 1.00" liquid having
fallen by Friday night. For now, we have a few inches of snow
accumulation (4" or less) for valley areas, with accumulations
of 6"+ for the mountains, with the highest amounts across the
southern green mountains and the southern adirondacks. Snow
ratios will be fairly poor through the event. Boundary layer
temps at or just above freezing will aid in some melting, making
the snow wet and dense.

Long term /Saturday night through Wednesday/
Things start out on a dry note, with a lack of cold air the
highlight over the entire period. A dry and weakening cold front
from the north will break apart over the weekend, and high pressure
will build across the region, offering up decreasing cloudiness...

with a mostly sunny day for Monday while low pressure over arkansas
moves into the ohio valley by Tuesday.

A good possibility of rain will overspread our forecast area Monday
night with a wintry mix the best bet for the higher elevations. A
lack of cold air, and milder air being drawn in at mid-levels will
mean predominantly overrunning rain for Tuesday, with more overnight
mixing in the form of showers at the higher elevations Tuesday night
as the system moves off the virginia coast. Wednesday may see some
lingering rain showers as a slow drying trend begins.

High temperatures on Sunday will range from the mid 30s in the high
peaks of the adirondacks... To around 50 degrees in the mid-hudson
valley. This will bounce by about 5 degrees for Monday except in the
mid-hudson valley, and Tuesday's highs will be in the 40s, with some
readings around 50 degrees in the mid-hudson valley. Wednesday will
be mildest, with highs ranging from mostly the upper 40s to around
60 degrees.

After Sunday night, low temperatures will moderate each night, so
that lows from the lower or mid 20s to the lower 30s both Saturday
night and Monday night become lows in the 30s and lower 40s by
Tuesday night.

Aviation /20z Wednesday through Monday/
Cloud bases have mainly risen toVFR, with some MVFR holding on
at kpsf. While cloud cover will be slow to break up this
afternoon, expect mainlyVFR conditions this afternoon and
through the TAF period. Do expect a gradual clearing trend this
evening with much less cloud cover overnight and into Thursday
as high pressure builds in.

Winds have been slow to respond at kalb/kgfl as cloud cover is
hindering diurnal mixing, but some north/northwesterly gusts to
20-25 kt remain possible through the daylight hours today.

These gusts have already been seen at kpsf/kpou, and expect them
to continue before diminishing around sunset. Winds will become
light overnight and into Thursday, mainly out of the north.

Outlook...

Thursday night: high operational impact. Likely ra... Sn... Sleet.

Friday: high operational impact. Definite ra... Sn... Sleet.

Friday night: high operational impact. Definite ra... Sn... Sleet.

Saturday: moderate operational impact. Chance of ra... Sn... Sleet.

Saturday night: low operational impact. Slight chance of shra... Shsn.

Sunday: no operational impact. No sig wx.

Sunday night: no operational impact. No sig wx.

Monday: no operational impact. No sig wx.

Fire weather
Much of eastern new york and western new england continues to have
snow on the ground. Although snow melt has been ongoing recently and
most valley areas only have snow depth of a few inches, much deeper
snowpack remains across the hills and mountains.

After a sunny and dry day Thursday with light northerly winds and rh
values bottoming out in the 30s, a strong late-season winter storm
will spread moderate to heavy precipitation throughout the region
Thursday night into early Saturday. This will result in a
continuation of moist and snow-covered ground.

Hydrology
The recent rainfall and snowmelt has led to some rises on rivers and
streams. A few river points came close or reached action stage, but
no flooding occurred. With daytime temperatures well above freezing,
some additional snowmelt is expected today and tomorrow, but no
precipitation is expected. This should allow rivers and streams to
continue to recede by through tomorrow.

Another storm system is expected on Thursday night through Saturday
morning. Precipitation will be snow initially, mixing with sleet and
rain especially in the valleys. Some of the higher elevations may
remain mainly snow and sleet. A total of 1 to 1.5" of precipitation
is expected, with some spots approaching 2". The wintry
precipitation will initially prevent much runoff from occurring.

Still, some river rises are expected by Friday into Saturday. The
mmefs suggests a few rivers getting into action stage and
approaching minor flood stage.

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 storm watch from late Thursday night through Saturday
morning for nyz033-042.

Ma... Winter storm watch from late Thursday night through Saturday
morning for maz001.

Vt... Winter storm watch from late Thursday night through Saturday
morning for vtz013>015.

Synopsis... Frugis/jvm
near term... Frugis/thompson
short term... Frugis/jvm
long term... Elh/nas
aviation... Thompson
fire weather... Frugis/thompson
hydrology... Frugis/thompson


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 36 mi97 min 50°F 1019 hPa25°F
NWHC3 - 8465705 - New Haven, CT 98 mi55 min N 17 G 25 49°F 41°F1019 hPa
BRHC3 - 8467150 - Bridgeport, CT 99 mi55 min N 12 G 17 50°F 1018.7 hPa

Wind History for New Haven, CT
(wind in knots)    EDIT      (on/off)   Help
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
24hr
NE4
--
NE6
NE7
NE8
NE8
G11
NE10
NE8
N7
N10
G13
N6
N6
N12
G16
N14
G21
N16
G21
NE16
G20
NE16
N13
G17
N20
N12
G21
N17
G24
N22
G30
NE15
G20
N17
G23
1 day
ago
NE5
NE8
NE9
NE8
N8
G11
NE9
G12
NE6
G9
NE8
NE4
G7
NE6
G9
NE7
SE4
S3
E4
G7
SE3
G7
SE6
SE4
G8
S9
SE7
G11
E6
G13
E2
NE6
SE4
NE4
2 days
ago
SE8
G13
SE9
G13
SE7
G13
SE5
G10
E3
G9
E3
G7
NE4
E3
E4
NE4
E3
G8
NE3
G6
NE3
NE3
NE5
N10
G13
N4
NE9
G12
NE8
NE9
N6
NE8
NE9
NE6
G10

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Albany International Airport, NY16 mi76 minNNW 18 G 2310.00 miMostly Cloudy and Breezy46°F21°F38%1021.5 hPa
Schenectady Airport, NY24 mi78 minNNW 11 G 2110.00 miMostly Cloudy45°F23°F43%1021.7 hPa

Wind History from ALB (wind in knots)
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
7
PM
Last 24hrCalmCalmN10
G15
N11
G18
N6N5N8N7N6N6N3NW4N6N5NE6N5NE53CalmNW12
G19
N8
G17
NW15
G22
N18
G23
N14
G20
1 day agoE3CalmCalmS3S4S3CalmCalmN4CalmCalmCalmN3N3S5S4S4S6S6S9S7S8S3Calm
2 days agoS5S6S9S8S9S10
G16
S14
G22
S11S12S9S7
G15
S7S8S7S7S6S3SE6S6S6S7S6S5Calm

Tide / Current Tables for Castleton-on-Hudson, Hudson River, New York
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Castleton-on-Hudson
Click for Map
Wed -- 12:33 AM EDT     0.04 feet Low Tide
Wed -- 06:23 AM EDT     5.60 feet High Tide
Wed -- 06:42 AM EDT     Sunrise
Wed -- 07:51 AM EDT     Moonrise
Wed -- 01:01 PM EDT     0.23 feet Low Tide
Wed -- 06:46 PM EDT     5.36 feet High Tide
Wed -- 07:18 PM EDT     Sunset
Wed -- 09:17 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.20.11.12.74.25.15.55.54.63.22.11.40.70.20.723.54.65.25.34.83.52.21.3

Tide / Current Tables for New Baltimore, Hudson River, New York
   EDIT      (on/off)   Help   One Week of Data
New Baltimore
Click for Map
Wed -- 12:06 AM EDT     0.34 feet Low Tide
Wed -- 06:06 AM EDT     5.70 feet High Tide
Wed -- 06:42 AM EDT     Sunrise
Wed -- 07:51 AM EDT     Moonrise
Wed -- 12:34 PM EDT     0.53 feet Low Tide
Wed -- 06:29 PM EDT     5.46 feet High Tide
Wed -- 07:18 PM EDT     Sunset
Wed -- 09:17 PM EDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.30.71.93.54.75.45.75.44.332.11.30.70.61.42.84.155.45.44.53.221.3

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Northeast    EDIT
Geos

Wind Forecast for Albany, NY (19,4,5,8)
      (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.