Monday, January22, 2018 L-36.com


Marine Weather and Tides
Wappingers Falls, 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 7:13AMSunset 5:01PM Monday January 22, 2018 5:16 AM EST (10:16 UTC) Moonrise 11:19AMMoonset 11:35PM Illumination 31% Phase: Waxing Crescent; Moon at 6 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
ANZ335 Long Island Sound West Of New Haven Ct/port Jefferson Ny- 336 Am Est Mon Jan 22 2018
.small craft advisory in effect from Tuesday morning through Tuesday afternoon...
Today..E winds around 5 kt. Seas 1 ft or less. Chance of rain with patchy drizzle. Patchy fog. Vsby 1 to 3 nm.
Tonight..SE winds 5 to 10 kt. Seas 1 ft or less. Patchy fog in the evening. Patchy drizzle in the evening, then chance of showers after midnight. Vsby 1 to 3 nm in the evening.
Tue..S winds 15 to 20 kt with gusts up to 25 kt. Seas around 2 ft. Showers. Vsby 1 to 3 nm.
Tue night..W winds around 15 kt with gusts up to 25 kt. Seas around 2 ft.
Wed..W winds around 15 kt with gusts up to 25 kt. Seas around 2 ft.
Wed night..NW winds 10 to 15 kt with gusts up to 20 kt. Seas 1 ft or less.
Thu..NW winds 10 to 15 kt. Seas 1 ft or less.
Thu night..NW winds 10 to 15 kt. Seas 1 ft or less.
Fri..NW winds 5 to 10 kt, becoming W in the afternoon. Seas 1 ft or less.
Fri night..SW winds 5 to 10 kt. Seas 1 ft or less.
ANZ300 336 Am Est Mon Jan 22 2018
Synopsis for the long island waters and new york harbor.. A warm front slowly approaches the waters today, shifting north of the waters tonight into Tuesday morning. A cold front quickly follows for Tuesday evening. High pressure builds during the mid and late week period.

7 Day Forecast for Marine Location Near Wappingers Falls, NY
   Hourly   EDIT   Help
location: 41.58, -73.95     debug


Area Discussion for - Albany, NY
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus61 kaly 220955
afdaly
area forecast discussion
national weather service albany ny
455 am est Mon jan 22 2018

Synopsis
A frontal boundary will lift slowly north of the region
as a warm front today into tonight with light mixed precipitation
changing to rain especially north of the mohawk valley and capital
region. A low pressure system and its cold front will bring periods
of rain to eastern new york and western new england on Tuesday. As
the cold front moves through Tuesday night, colder more seasonable
air will return with brisk conditions for the mid week.

Near term until 6 pm this evening
The winter weather advisory was expanded to include northern
washington and southeastern warren counties from 1 pm today to
7am Tuesday...

A winter weather advisory remains in effect from 1 pm today
until 7 am Tuesday for hamilton and northern warren counties in
new york, and southern vermont...

as of 455 am est... The latest water vapor loop with h500
heights overlaid has zonal flow over the northeast and southeast
canada with a strong closed cutoff cyclone over the central
plains. A region of upper level diffluence is moving over the
great lakes region and oh valley upstream of the region. At the
sfc, high pressure remains near northern ontario and james bay
with a frontal boundary over northern ny and northern new
england. This front has become stationary. A separate frontal
boundary is over the ny and pa border as well as central nj. The
weak isentropic lift with the front has produced some spotty
light rain and mixed pcpn including sleet, snow and freezing
rain especially from the capital region mohawk valley south. An
sps has been issued.

The pcpn continues to dry up a bit, especially trying to move
north of albany. Based on the latest nam GFS rap hrrr a lull in
the pcpn with the weak synoptic forcing is expected prior to
noon. However, between noon and 3 pm another surge of warm
advection and isentropic lift occurs across the forecast area
from the west to southwest to north to northeast, as the warm
front and mid-level short-wave moves in. Critical partial
thicknesses, and model soundings support mainly a rain ptype
from the mohawk valley, capital region, berkshires south.

Further north some snow, sleet and freezing rain is likely
especially late in the pm towards sunset. We favored the colder
nam profiles where the colder subfreezing air may be hard to
dislodge especially east to the southern adirondacks, and
southern green mtns where the boundary layer ageostrophic winds
are from the east to northeast with wet bulb zero temps below 0c.

Some light accums are possible especially towards sunset. Any
sleet and snow accums should be light on the order of a coating
to perhaps a half an inch.

Temps are tricky today with clouds and moisture increasing in
the boundary layer. We sided with the colder NAM and ecm mos
temps and not the much warmer gfsmos values. We went with highs
mainly in the upper 30s to lower 40s from the capital
region mohawk valley south and west. A few mid 40s are possible
in these areas, and lower to upper 30s north and east. Patchy
fog may linger with the spotty light rain or mixed pcpn during
the day.

Short term 6 pm this evening through Wednesday night
Tonight... The NAM model soundings in particular near kgfl and
southern vt keep the threat for some freezing rain tonight
before temps gradually warm up, as the warm front lifts north
and east. We added southeast warren and northern washington
counties to the advisories until 7 am tue. The eastern
adirondacks including hamilton and northern warren counties were
kept going, as well as southern vt, though west of the southern
greens mtns may warm up quickly. Will have to watch if northern
saratoga co. Needs to be added to the advisory.

The good news is the isentropic lift strengthens on the 290 295k
surfaces as the low-level jet increases. Temps should steadily
rise Mon night with lows generally in the mid and upper 30s from
the i-90 corridor south and east, and upper 20s to mid 30s
northward. The south to southwest h850 jet increases to 40-50
kts on the GFS nam. The latest 00z GEFS indicate the h850
+v-component low-level wind anomalies increase to +2 to +3
standard deviations std devs above normal. The strong
southerlies will advect into the region some gulf moisture
towards daybreak, as pwat anomalies also rise 2 to 3+ std
devs above normal ahead of the cold front and strong cyclone
moving into the central and eastern great lakes region. Any ice
accretions should only amount to a few hundredths to isolated
tenth of an inch, as the warmer air floods into the the region.

Tuesday... A slug of moderate to heavy rainfall impacts the
region as upper level diffluence sets up over the area. The
isentropic lift enhances with better upper level jet dynamics.

The heaviest rain looks to be Tue morning into the early to mid
pm. The showalter values continue to dip to 0c to -2c south of
albany. The elevated instability is best depicted on the nam,
and we did include a slight chance of thunderstorms late tue
morning into the afternoon south of albany over the southeast
catskills, mid hudson valley, southern taconics and NW ct. A dry
slot to the system will likely drift into the region Tue pm, as
the sfc wave stays north and west of the region, as it moves
north of the st lawrence river valley. Total rainfall may reach
the half inch to one inch range during this time frame. High
temps will be in the mid 40s to lower 50s across the forecast
area, but strong cold advection will kick in late in the day
initially northwest of albany.

Tuesday night... Some timing differences in the
nam gfs ECMWF ensembles on how quickly the cold advection moves
across the forecast area. The GFS has two surges. One is with
the initial cold front, and the second is with a secondary
boundary. The mins temps are bit higher on the gfsmos compared
to the NAM mos. We used a blend of the guidance, and have the
lingering pcpn with the upper low and secondary cold front
changing to snow north and west of the capital district. Light
snow accums in the westerly upslope region of the western
adirondacks, and southern greens are possible with a few tenths
to an inch or two. Also, some light snow accums are possible in
the mohawk valley northern and eastern catskills. The winds will
also increase from the west to northwest at 10 to 20 mph with
some gusts in the 35-40 mph range. Lows fall back into the 20s
to around 30f with some teens over the southern dacks. We will
have to monitor if any hydro issues arise. After collab with
neighboring wfos, we decided to hold on a flood watch for snow
melt runoff ice jams. Still time to further assess potential.

Please see our hydro section for more details.

Wed-wed night... The cyclone deepens and strengthens over new
brunswick and nova scotia. Blustery northwest winds and cold
conditions are expected on Wed with h850 temps tumbling back to
-10c to -16c over the fcst area.

Max temps may be achieved before noon, and slightly fall during
the day. Some wind gusts in to 35 to 45 mph range will be
possible over the higher terrain and from the capital region
north and east late morning into the early pm. Daytime highs
will be in the 20s to mid 30s. The upslope or lake enhanced snow
showers will diminish during the day with the subsidence
inversion lowering. Clearing skies, lighter winds and cold
conditions are likely late Wed night with lows in the single
digits and teens with some below zero readings over the southern
adirondacks.

Long term Thursday through Sunday
The periods starts out on Thursday with a cold and dry northwest
flow regime in place, with high pressure building east across the
great lakes. 850 mb temp anomalies of -1 to -2 stdev are forecast
from the 00z gefs, which will translate highs only in the teens and
20s across the region with gusty northwest winds. Wind speeds will
decrease Thursday night, as a 1035 to 1040 mb anticyclone moves
directly over the region. This will result in cold temps in the
single digits to below zero in the higher terrain. Even colder temps
would be expected with a fresh snow pack, but this is not
anticipated. Temps will remain on the cool side Friday as the high
pressure ridge gradually shifts eastward into new england, with
continued dry conditions.

As high pressure at the surface moves offshore Friday night, ridging
in the mid to upper levels will build across the region. Rising
heights and a return south-southwest flow around the departing high
will result in warmer temps on Saturday. Depending on eventual
sunshine and mixing potential, many locations from the mohawk and
hudson valley southward could reach well into the 40s. A residual
snow pack in higher terrain areas should keep temps cooler in the
30s, but still above normal for late january.

Chances for precipitation will start to increase Saturday night, and
especially into Sunday ahead of a surface cold front and upper level
trough passage. Forecast guidance has trended towards a progressive
open-wave system, although there are timing differences. Will
mention highest pops during the day Sunday, as this period is when
there is better consensus for the timing of the cold front passage.

Based on temp profiles, there could be some mixed precipitation
across mainly higher terrain areas and sheltered valleys with colder
air in place near the surface Saturday night. Will mention rain snow
mix for now, with plenty of time to refine forecast once timing
comes into better focus. Primarily rain is expected in most valley
locations Saturday night into Sunday.

Aviation 09z Monday through Friday
A frontal boundary draped across the area will result in spotty
light rain snow sleet, with more of the frozen precip at
kgfl kpsf where thermal profiles are colder, and likely plain
rain with some brief periods of sleet mixed in at kalb kpou.

Much of this precip will end by around 12z today, as the main
forcing from the boundary lifts north of the region. Flying
conditions will generally be MVFR with some periods of ifr
possible towards 12z.

Additional precip will move in later this afternoon into the
evening, well ahead of a sprawling low pressure system
approaching from the midwest. Temperatures should be above
freezing at all terminals by then, so just plain rain is
expected with conditions deteriorating to ifr.

Winds will be variable less than 5 kt through 06z Tuesday.

Outlook...

Tuesday night: moderate operational impact. Windy with gusts to 31.0
chance of shra... Shsn.

Wednesday: low operational impact. Breezy no sig wx.

Wednesday night: no operational impact. No sig wx.

Thursday: low operational impact. Breezy no sig wx.

Thursday night: low operational impact. Breezy no sig wx.

Friday: no operational impact. No sig wx.

Hydrology
Ongoing flooding due to ice jams will continue to be addressed
with areal flood warnings warren and litchfield counties , as
some lingering issues continue due to existing ice jams which
froze in place.

Temperatures will continue to run above normal into Tuesday.

The mildest night and day will be on Tuesday with highs mainly
in the 40s to lower 50s with a much colder and more seasonable
airmass returning Tuesday night and through the remainder of the
week.

A low pressure system and its cold front will bring a moderate
to locally heavy rainfall to the area. The rain is expected to
be light today and into early tonight with the bulk of the rain
occurring Tuesday morning into early afternoon. QPF amounts are
forecast at this time to range from three quarters of an inch to
an inch an a quarter. The highest amounts are expected north
and east of albany and the capital region.

The rain is expected to cause rises on rivers and streams, which
may move and dislodge ice and may cause flooding near ice jams.

Mostly within bank rises are expected based on the latest nerfc
forecasts and the mmefs. A couple of points reach minor flood
stage on the mmefs such as little falls on the mohawk river and
williamstown on the hoosic river. Our confidence is not great
for widespread potential flooding and we will continue to
monitor if one is needed especially Tuesday into Tuesday night.

Our latest winter spring flood potential outlook (esfaly) was
issued this past Friday.

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 1 pm this afternoon to 7 am est
Tuesday for nyz033-042-043-083.

Ma... None.

Vt... Winter weather advisory from 1 pm this afternoon to 7 am est
Tuesday for vtz013>015.

Synopsis... Wasula
near term... Wasula
short term... Wasula
long term... Jpv
aviation... Jpv
hydrology... Bgm wasula


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 30 mi46 min 35°F 1020 hPa33°F
BRHC3 - 8467150 - Bridgeport, CT 49 mi46 min ENE 1.9 G 4.1 36°F 35°F1020.6 hPa

Wind History for Bridgeport, CT
(wind in knots)    EDIT      (on/off)   Help
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
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
Last
24hr
N2
N1
N1
G4
E1
--
N3
SW5
S6
SW6
SW6
G9
SE2
S3
W4
N4
SE1
S2
--
--
N2
NE1
NE1
NE2
E1
G4
NE3
1 day
ago
SW7
G12
SW8
G14
SW7
G12
SW8
G12
SW7
G12
SW10
G17
W8
G17
W12
G18
W7
G15
SW6
G10
SW5
G10
W4
G8
W4
W3
W3
G6
W5
SW2
N2
N3
N4
N4
N4
N3
N4
2 days
ago
NW4
W1
G4
W5
NW2
W5
G8
W6
G11
W5
G12
W4
G12
NW5
G10
NW7
G11
NW3
G6
SW3
G7
SW4
SW4
SW3
W2
N1
--
SW4
G8
W3
G6
W3
G6
SW3
SW3
SW3

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Poughkeepsie, Dutchess County Airport, NY6 mi23 minN 02.50 miFog/Mist34°F33°F97%1019.9 hPa
Newburgh / Stewart, NY9 mi31 minN 06.00 miLight Rain Fog/Mist36°F35°F100%1020.3 hPa
Montgomery, Orange County Airport, NY17 mi22 minN 01.25 miFog/Mist35°F34°F96%1019.9 hPa

Wind History from POU (wind in knots)
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
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
Last 24hrCalmCalmCalmCalmCalmCalmSW3SW3CalmCalmCalmE4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
1 day agoCalmSW6SW6SW7SW9SW11SW16
G19
W14
G24
SW8SW12SW9SW5SW8SW4SW4SW3CalmE3CalmCalmCalmCalmCalmCalm
2 days agoCalmCalmCalmS3SW5SW7S6S7W64S4S5SE3SE3CalmCalmCalmCalmCalmE4CalmCalmCalmCalm

Tide / Current Tables for New Hamburg, Hudson River, New York
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
New Hamburg
Click for Map
Mon -- 03:19 AM EST     2.55 feet High Tide
Mon -- 07:16 AM EST     Sunrise
Mon -- 09:44 AM EST     0.24 feet Low Tide
Mon -- 10:18 AM EST     Moonrise
Mon -- 03:29 PM EST     2.72 feet High Tide
Mon -- 04:59 PM EST     Sunset
Mon -- 10:18 PM EST     0.02 feet Low Tide
Mon -- 10:35 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.11.92.42.52.52.31.81.10.60.30.20.51.11.92.52.72.72.52.11.40.70.200.1

Tide / Current Tables for Newburgh, Hudson River, New York
   EDIT      (on/off)   Help   One Week of Data
Newburgh
Click for MapNote: Values for the Hudson River above the George Washington bridge are based upon averages for the six months May to October

Mon -- 02:56 AM EST     2.46 feet High Tide
Mon -- 07:16 AM EST     Sunrise
Mon -- 09:17 AM EST     0.25 feet Low Tide
Mon -- 10:18 AM EST     Moonrise
Mon -- 03:05 PM EST     2.67 feet High Tide
Mon -- 04:59 PM EST     Sunset
Mon -- 09:48 PM EST     0.03 feet Low Tide
Mon -- 10:35 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.422.42.52.42.11.50.90.40.30.30.71.42.12.52.72.62.31.810.40.100.2

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 (5,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Upton, 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.