Wednesday, April21, 2021
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Marine Weather and Tides
Fort Montgomery, NY

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:04AMSunset 7:43PM Wednesday April 21, 2021 6:04 AM EDT (10:04 UTC) Moonrise 1:15PMMoonset 3:26AM Illumination 70% Phase: Waxing Gibbous; Moon at 9 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- 357 Am Edt Wed Apr 21 2021
.small craft advisory in effect from noon edt today through Thursday afternoon...
Today..SW winds 10 to 15 kt with gusts up to 25 kt. Seas 1 ft or less, then 1 to 2 ft this afternoon. Slight chance of showers early this morning, then chance of showers late this morning and early afternoon. Showers and slight chance of tstms late with vsby 1 to 3 nm.
Tonight..W winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft.
Thu..W winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft.
Thu night..W winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft.
Fri..W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft.
Fri night..W winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 1 to 2 ft in the evening, then 1 ft or less.
Sat..SW winds 5 to 10 kt with gusts up to 20 kt. Seas 1 ft or less.
Sat night..SE winds 5 to 10 kt. Seas 1 ft or less. Rain likely.
Sun..NE winds 10 to 15 kt with gusts up to 25 kt. Seas 1 to 2 ft. Rain likely.
Sun night..NW winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. Winds and seas may be higher in and near tstms.
ANZ300 357 Am Edt Wed Apr 21 2021
Synopsis for the long island waters and new york harbor.. A strong cold front will move across the area this afternoon into early this evening. A frontal wave along the front will rapidly deepens, while passing to the west today, heading up into the canadian maritimes tonight into Thursday. At the same time, high pressure will build to the south and west of the area Thursday into Friday, passing offshore on Saturday.


7 Day Forecast for Marine Location Near Fort Montgomery, NY
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location: 41.3, -74.01     debug


Area Discussion for - New York City/Upton, NY
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FXUS61 KOKX 210859 AFDOKX

Area Forecast Discussion National Weather Service New York NY 459 AM EDT Wed Apr 21 2021

SYNOPSIS. A strong cold front will move across the area this afternoon into early this evening. A frontal wave along the front will rapidly deepen, while passing to the west today, heading up into the Canadian Maritimes tonight into Thursday. At the same time, high pressure will build to the south and west of the area Thursday into Friday, passing offshore on Saturday. Low pressure approaches from the southwest Saturday night, passing just to the south on Sunday. High pressure then builds back into the area for the start of the new work week.

NEAR TERM /UNTIL 6 PM THIS EVENING/. A weak stationary front across the Lower Hudson Valley and interior SW CT will lift to the north quickly this morning as daytime heating mixes down a gusty southerly glow (25-30 mph). Initially, there will be sun this morning, which will allow temperatures across the interior to rise into the mid 60s, possibly around 70 just west of the NYC metro. This will allow some destabilization of the airmass ahead of a strong cold front approaching from the west. A vigorous upper trough over the Great Lakes will strengthen the boundary as it works east, along with a frontal wave that looks to pass near or just west of the Lower Hudson Valley this afternoon.

CAMs in good agreement with some pop-up showers this morning in association with 40-45 LLJ working up from the SW. This jet will mainly be along an axis from the NYC metro into SW CT, translating east by early afternoon. The main convective line along and ahead of the cold front will work into far western areas of the Lower Hudson Valley and NE NJ toward 18Z (2PM), then working across the remainder of the are mid to late afternoon, exiting far eastern LI and SE CT by around 00Z (8 PM).

SPC has placed a good portion of the forecast area under a slight risk for severe weather, with the exception eastern LI and SE CT. This is a low CAPE, high shear environment. General thoughts are that the line will weaken passing to the east of the NYC metro and Lower Hudson Valley/SW CT. The main threat will be isolated damaging winds. Soundings generally support small bowing line segments. 0-3 km helicity values approach 150. The best chance for an isolated tornado would be closer to the surface low track, but once gain CAPE is low.

Brief heavy rainfall may produce a quarter to half inch of rainfall as the line works across the area.

Following the cold front, strong cold advection and deep cyclonic flow will allow for good mixing and gusty west winds (up to 35 mph)

SHORT TERM /6 PM THIS EVENING THROUGH FRIDAY NIGHT/. Any lingering showers will pass to the east early this evening. Clearing skies and gusty west winds will prevail. This combined with an unseasonably cold night across the region will give a winter-like feel. Overnight lows across the interior will drop to around 30, with the lower to mid 30s elsewhere. The freeze watch for Western Passaic, Orange, Putnam, Fairfield, and northern Middlesex have been upgraded to a freeze warning. Ironically, today is considered the start date for the growing season across this area.

Gusty winds continue on Thursday as the low pressure strengthens while moving over the Canadian Maritimes. High pressure also builds to our south and west, creating a strong pressure gradient over the region. W-NW wind gusts 25 to 35 mph are likely, and could reach 40 mph near the coast. Highs on Thursday will be well below normal in the upper 40s inland to the lower 50s near the coast. Winds weaken some Thursday night, but should still remain gusty enough to preclude frost again. Lows will be in the middle to upper 30s for most locations.

High pressure will build to the south and west through Friday and then off the Mid Atlantic coast Saturday. Temperatures will moderate back to near normal levels.

LONG TERM /SATURDAY THROUGH TUESDAY/. High pressure to the south moves farther offshore on Saturday as an amplifying trough and associated surface low over the Mississippi Valley begin to approach the region. While clouds will increase, the daylight hours are expected to remain dry.

Precipitation rapidly overspreads the area Saturday night as the low approaches and then passes over or just south of the region during the day on Sunday. Rain then gradually tapers off from southwest to northeast Sunday afternoon. As the low moves off to the northeast, gusty northwest flow is expected Sunday night into Monday as high pressure begins to build in from the west. Dry conditions are expected Monday and Tuesday as the high becomes more established.

After above normal temperatures on Saturday, highs on Sunday and Monday are expected to remain near to slightly below normal as the low impacts the area. Above normal temperatures will then return on Tuesday with plenty of sunshine.

AVIATION /09Z WEDNESDAY THROUGH SUNDAY/. Low pressure passes west of the NYC terminals today, sending a strong cold front across the region this afternoon. High pressure then begins to build toward the area tonight.

VFR conditions expected through this morning. A few showers could develop as early as 12-14Z ahead of the cold front, but not expecting any ceiling/visibility impact from these. A line of showers and thunderstorms then crosses the area between 17-23Z, with MVFR ceilings and IFR visibilities possible in any thunderstorms. The best chance of thunderstorms will be between 19-21Z for the city terminals.

Southerly winds around 10 kt will continue at the coastal terminals overnight, with light southerly or variable winds inland. Winds then increase through the day as the front approaches, with gusts 20-25 kt by mid-morning. Gusts to over 40 kt are possible in any thunderstorms. Winds then shift quickly to the NW late in the day with G30-35 kt.

In addition, LLWS is possible through 12Z with winds at 2000 ft remaining around 45 kt.

. NY Metro (KEWR/KLGA/KJFK/KTEB) TAF Uncertainty .

Amendments are possible this afternoon for timing of showers/thunderstorms.

OUTLOOK FOR 06Z THURSDAY THROUGH SUNDAY. Thursday. VFR. WNW gusts 25-30kt. Friday. VFR. WNW gusts 20-25kt. Saturday. VFR. Saturday night-Sunday. MVFR/IFR in rain.

Detailed information, including hourly TAF wind component forecasts, can be found at: http:/www.weather.gov/zny/n90

MARINE. S flow increases ahead of a strong cold front today, with SCA conditions on the ocean waters and on all waters by the afternoon. The cold front moves across the waters by evening. Gale Warning remains in effect on the ocean for frequent gusts over 34 knots tonight into Thursday. The SCA on the non ocean waters continues Wednesday night and will continue into Thursday.

Lingering SCA conditions likely on Friday in a gradually diminishing west flow, especially on the ocean.

Sub-SCA conditions are expected on Saturday before both winds and seas increase Saturday night into Sunday as low pressure crosses the waters. Gusts to 25 kt are possible on all waters, especially Sunday afternoon into Sunday night as flow turns to the northwest behind the departing low. Seas on the ocean will increase to 5 ft Sunday morning, then to 6-8 ft late Sunday into Sunday night.

FIRE WEATHER. Both Thursday and Friday may pose an elevated risk of wildfire spread due to low RH and gusty west winds. Rainfall amounts today will be on the order of 0.25 to 0.50 inches. This will likely factor into how quickly fine fuels can dry out. So, the greater risk may come on Friday. Land managers will be contacted today to discuss forecast fuel moisture during this time

HYDROLOGY. No hydrologic impacts are expected through the week.

OKX WATCHES/WARNINGS/ADVISORIES. CT . Freeze Warning from 2 AM to 9 AM EDT Thursday for CTZ005-006. NY . Freeze Warning from 2 AM to 9 AM EDT Thursday for NYZ067-068. NJ . Freeze Warning from 2 AM to 9 AM EDT Thursday for NJZ002. MARINE . Small Craft Advisory from noon today to 6 PM EDT Thursday for ANZ331-332-335-338-340-345. Small Craft Advisory until 6 PM EDT this evening for ANZ350- 353-355. Gale Warning from 6 PM this evening to 6 PM EDT Thursday for ANZ350-353-355.



SYNOPSIS . DW NEAR TERM . DW SHORT TERM . DW LONG TERM . FEB AVIATION . FEB MARINE . FEB/DW FIRE WEATHER . DW HYDROLOGY . FEB/DW


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KPTN6 - 8516945 - Kings Point, NY 36 mi47 min SSW 2.9 G 5.1 52°F 1009.4 hPa
NPXN6 37 mi35 min N 1.9 43°F 1011 hPa35°F
BATN6 - 8518750 - The Battery, NY 41 mi47 min 58°F 51°F1008.6 hPa
BRHC3 - 8467150 - Bridgeport, CT 45 mi47 min SE 2.9 G 4.1 51°F 52°F1008.9 hPa
ROBN4 - 8530973 - Robins Reef, NJ 45 mi47 min SSW 11 G 12 57°F 1007.9 hPa
BGNN4 - 8519483 - Bergen Point West Reach, NJ 46 mi47 min 57°F 52°F1007.6 hPa
MHRN6 46 mi47 min S 6 G 12
TKPN6 49 mi47 min N 4.1 G 7 42°F 56°F1009.8 hPa36°F

Wind History for Kings Point, NY
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Newburgh / Stewart, NY15 mi80 minENE 710.00 miPartly Cloudy43°F34°F71%1009.1 hPa
Montgomery, Orange County Airport, NY20 mi71 minNNE 610.00 miFair40°F33°F77%1008.7 hPa
White Plains - Westchester County Airport, NY22 mi69 minN 010.00 miA Few Clouds46°F42°F86%1008.5 hPa
Poughkeepsie, Dutchess County Airport, NY24 mi72 minN 010.00 miA Few Clouds41°F32°F70%1008.8 hPa

Link to 5 minute data for KSWF

Wind History from SWF (wind in knots)
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Last 24hrCalmCalmW7W14W12
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W6W5--NE10NE8NE8E5E5NE7E5E5E7E5
1 day agoCalmCalmCalmCalmCalmNW8S7NW7NW6W4S10N105CalmCalmCalmCalm----CalmCalmCalmCalmCalm
2 days agoW8W8W1044W7
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Tide / Current Tables for Peekskill, Hudson River, New York (2)
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Peekskill
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Wed -- 12:45 AM EDT     0.86 feet Low Tide
Wed -- 03:25 AM EDT     Moonset
Wed -- 05:39 AM EDT     2.79 feet High Tide
Wed -- 06:06 AM EDT     Sunrise
Wed -- 01:14 PM EDT     Moonrise
Wed -- 01:46 PM EDT     0.54 feet Low Tide
Wed -- 06:58 PM EDT     2.53 feet High Tide
Wed -- 07:42 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.90.91.11.82.42.72.82.72.421.51.10.80.60.60.91.62.12.42.52.42.11.71.3

Tide / Current Tables for Haverstraw (Hudson River), New York Current
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Haverstraw (Hudson River)
Click for Map
Wed -- 03:25 AM EDT     Moonset
Wed -- 03:33 AM EDT     0.00 knots Slack
Wed -- 05:35 AM EDT     0.68 knots Max Flood
Wed -- 06:06 AM EDT     Sunrise
Wed -- 08:34 AM EDT     -0.00 knots Slack
Wed -- 12:33 PM EDT     -1.10 knots Max Ebb
Wed -- 01:14 PM EDT     Moonrise
Wed -- 04:22 PM EDT     0.00 knots Slack
Wed -- 06:08 PM EDT     0.54 knots Max Flood
Wed -- 07:42 PM EDT     Sunset
Wed -- 08:59 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.9-0.8-0.5-0.20.20.60.70.50.2-0.2-0.6-0.9-1.1-1.1-0.9-0.6-0.20.30.50.50.3-0-0.4-0.7

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