Sunday, April18, 2021
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Marine Weather and Tides
Watervliet, NY

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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 6:06AMSunset 7:41PM Sunday April 18, 2021 4:14 PM EDT (20:14 UTC) Moonrise 10:05AMMoonset 1:14AM Illumination 43% Phase: First Quarter Moon; Moon at 7 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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7 Day Forecast for Marine Location Near Watervliet, NY
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location: 42.73, -73.7     debug


Area Discussion for - Albany, NY
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FXUS61 KALY 181752 AFDALY

AREA FORECAST DISCUSSION National Weather Service Albany NY 152 PM EDT Sun Apr 18 2021

SYNOPSIS. A seasonable spring day continues today under partly sunny skies with some scattered showers in the higher terrain areas of the southern Adirondacks, Upper Hudson Valley, and eastern Catskills. Skies turn mostly clear tonight with temperatures warming slightly above normal tomorrow. Additional isolated to scattered afternoon showers are once again possible. Our next chance for more widespread showers and even some thunderstorms arrives Wednesday.

NEAR TERM /THROUGH TONIGHT/.

Skies this afternoon have given way to increased sunshine since the shortwave this morning exited into New England. However, once areas warmed to their respective convective temperature, cumulus clouds populated our skies. In addition, isolated to scattered showers have developed over the terrain in the Adirondacks, Upper Hudson Valley, and eastern Catskills. The ENX VAD wind profile shows northwest winds in place aloft so these showers will continue to track southeast towards the southern Green Mountains. These showers are generally low topped likely due to the inversion in place at about ~8kft as seen on the 12 UTC ALY sounding. While any one shower should be brief (less than 30 minutes), some areas will likely be impacted by a few showers through the afternoon. Otherwise, expecting breaks of sun to assist areas that stay dry today rise towards their climatological mean which for mid to late April ranges from the upper 50s to low 60s.

Showers end towards sunset with clouds clearing once we cool below our convective temperature by early evening. Clear skies in place this evening should allow most to experience radiational cooling and areas in the southern Adirondacks, Upper Hudson Valley, southern Greens and eastern Catskills that experience light/scattered showers this afternoon could experience some patchy fog. Some high clouds arrive after 03-06 UTC but that may not be enough to impede additional cooling so expecting overnight lows to fall into the mid to upper 30s.

SHORT TERM /MONDAY THROUGH TUESDAY/. An upper level shortwave tracks through the region on Monday, bringing isolated to scattered showers and perhaps a few rumbles of thunder to the southern half of the forecast area. Latest model soundings indicate weak instability but steep lapse rates (~7 to 8 degrees C/km) and have therefore introduced isolated thunder during the afternoon hours. This aligns well with SPC's general thunderstorm outlook for the day. Afternoon highs are expected to warm into the upper 50s to mid 60s.

The trailing/southern end of a cold frontal boundary approaches the region Monday night as the corresponding upper low lifts further into Quebec, Canada. This trailing piece of energy may allow for some showers to reach the southern Adirondacks around daybreak Tuesday but with the energy far displaced won't amount to much more than that. The rest of the day Tuesday will be mild with temperatures warming into the low to upper 60s, except for the southern Adirondacks where it might remain on the cooler side of the front (temps in the 40s to low 50s).

LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/. Warm advection increases Tuesday night ahead of a strengthening upper impulse approaching from the midwest and OH Valley. A few showers could reach western areas toward daybreak Wednesday, maybe a few snow showers changing to rain showers in the southern Adirondacks.

Strong warm advection and a strong boundary layer southerly jet segment tracks through our region Wednesday afternoon with an abrupt shift to the west and northwest late Wednesday afternoon and evening. A tight thermal gradient along the leading edge of cold advection will provide additional low level forcing. Surface based instability will be lacking but conditional surface based instability and midlevel lapse rates will be steepening considerably through the day. Keeping a slight chance for thunderstorms due to the strong forcing and conditional instability. Low level shear will be impressive, and an enhanced line of shallow convection could develop with strong wind gusts, if the rain is heavy enough to mix the winds down. Highs Wednesday around 60 to lower 60s with around 50 to mid 50s higher terrain.

Rapid cooling Wednesday night with some gusty winds and low level flow off the lakes, likely keeping our region mostly cloudy. Some lake effect snow shower activity could extend into the southern Adirondacks, western Mohawk Valley and Schoharie Valley. Lows by early Thursday morning in the lower to mid 30s with 20s to around 30 higher terrain and will have to see if any trees and plants that have begun to flower will be affected by these temperatures.

Trailing upper energy and very cold temperatures aloft track through our region Thursday creating some shallow instability by midday Thursday into Thursday afternoon. Gusty flow off the lakes will keep much of our region mostly cloudy, but strong sun could cause lake effect snow shower activity to become more cellular. Snow shower activity could extend into eastern NY, the Berkshires and southern VT with a mix of rain and snow showers and maybe some localized bursts of snow and graupel. Coverage should only be isolated to scattered outside of the southern Adirondacks, western Mohawk Valley and Schoharie Valley. Highs Thursday in the upper 40s to lower 50s with mid 30s to lower 40s higher terrain.

Winds slowly diminish through early Friday morning but temperatures early Friday morning once again in the lower to mid 30s with colder in higher terrain and keeping watch with the status of growing season. Dry Friday with highs in the mid 50s to around 60 and upper 40s to around 50 higher terrain.

Considerable differences in sources of guidance/ensembles as to the timing and track of the next upper energy and associated cold front. Some guidance suggests the potential for showers Saturday well ahead of the next system with other guidance delaying it beyond Saturday. Just including isolated to scattered showers until details become clearer as we get closer to next weekend. Highs Saturday in the upper 50s to lower 60s and around 50 to mid 50s higher terrain.

AVIATION /18Z SUNDAY THROUGH FRIDAY/. Isolated showers/sprinkles will remain possible through early this evening. An upper level disturbance will pass across the TAF sites Monday afternoon, bringing isolated to scattered showers, and perhaps an embedded thunderstorm.

Mainly VFR conditions this afternoon, despite isolated to scattered rain showers/sprinkles. Best coverage of showers looks to be across higher terrain areas and near KGFL. Brief MVFR conditions can not be ruled out within any slightly heavier showers.

Clouds should decrease tonight, although patchy high clouds may pass through late tonight. Areas which receive showers this afternoon could witness some patchy ground fog development tonight, with best chance at KGFL. This may lead to brief periods of MVFR/IFR Vsbys, especially between roughly 08Z- 11Z/Mon.

Any fog/low stratus should lift by 12Z/Mon. As an upper level disturbance approaches from the west, clouds should increase, and isolated/scattered showers should develop after 16Z/Mon, with best chances mainly at KALB, KPOU and KPSF. An embedded thunderstorm can not be ruled out as well.

Winds will generally be west to northwest at 5-10 KT this afternoon, although may remain variable in direction at KGFL due to local topographical effects. Winds should trend to calm tonight, then become southwest to west at 4-8 KT by late Monday morning.

Winds may be locally gusty and variable in direction in and near any showers this afternoon, and again late Monday morning into the afternoon hours.

Outlook .

Sunday Night: No Operational Impact. NO SIG WX. Monday: Low Operational Impact. Isolated SHRA. Monday Night: No Operational Impact. NO SIG WX. Tuesday: No Operational Impact. NO SIG WX. Tuesday Night: Low Operational Impact. Chance of SHRA. Wednesday: High Operational Impact Likely SHRA. TSRA. Wednesday Night: Moderate Operational Impact. Breezy. Likely SHRA. Thursday: Moderate Operational Impact. Breezy. Chance of SHRA.

FIRE WEATHER. Continued mostly cloudy skies expected today with minimum afternoon RH values dropping to 40 to 60 percent. West- northwest winds remain rather light only ranging between 5 and 10kts. Maximum RH values tonight should range 75 to 95 percent. Milder conditions expected Monday with minimum RH values 30 to 50 percent. Isolated to scattered afternoon showers are possible both tomorrow and Monday. Isolated thunderstorms are also possible Monday afternoon, mainly across the mid Hudson Valley.

HYDROLOGY. Area rivers and streams have crested from the rainfall a couple of days ago and are now gradually receding. Outside of some isolated afternoon showers today and Monday, our next chance for more appreciable rainfall holds off until Wednesday into Wednesday Night.

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 . JLV/Speciale NEAR TERM . Speciale SHORT TERM . JLV LONG TERM . NAS AVIATION . KL/NAS FIRE WEATHER . JLV HYDROLOGY . JLV


Weather Reporting Stations
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On 03/09/2021 the NDBC primary processing servers were shut off due to a facilities issue. Station pages on the NDBC website are not updating and there is no ETR at this time. We will update this banner as we learn more.
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ANMN6 - Hudson River Reserve, NY 51 mi45 min SW 1.9 61°F 1007 hPa39°F

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Albany International Airport, NY6 mi24 minVar 610.00 miPartly Cloudy58°F36°F44%1007.4 hPa
Schenectady Airport, NY15 mi29 minWNW 1010.00 miMostly Cloudy59°F36°F42%1007.8 hPa

Link to 5 minute data for KALB

Wind History from ALB (wind in knots)
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Last 24hrNE6NE5NE3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNE3CalmS3CalmW6W8W5NW6W12
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1 day agoN8N11N6N8N9N3N9N7N5N4N5NW7N6NW6NW6NW4NW7W8N9N7NE3NW4NW7NE6
2 days agoW12W6NW5W10SW6CalmN3CalmW4CalmS3CalmCalmCalmCalmN4--N6NW7NW7NW8NW8N11
G20
N7

Tide / Current Tables for Troy, Hudson River, New York
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Troy
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Sun -- 01:13 AM EDT     Moonset
Sun -- 04:43 AM EDT     0.89 feet Low Tide
Sun -- 06:08 AM EDT     Sunrise
Sun -- 10:04 AM EDT     Moonrise
Sun -- 10:16 AM EDT     5.55 feet High Tide
Sun -- 05:34 PM EDT     0.90 feet Low Tide
Sun -- 07:40 PM EDT     Sunset
Sun -- 10:43 PM EDT     4.35 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.32.31.61.310.91.634.45.25.55.44.73.62.72.11.6111.833.84.34.3

Tide / Current Tables for Albany, New York
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Albany
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Sun -- 01:13 AM EDT     Moonset
Sun -- 04:33 AM EDT     0.89 feet Low Tide
Sun -- 06:08 AM EDT     Sunrise
Sun -- 10:04 AM EDT     Moonrise
Sun -- 10:08 AM EDT     5.55 feet High Tide
Sun -- 05:24 PM EDT     0.90 feet Low Tide
Sun -- 07:40 PM EDT     Sunset
Sun -- 10:35 PM EDT     4.35 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.12.21.61.3111.83.24.55.35.55.44.63.52.521.511.123.13.94.34.3

Weather Map
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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