Thursday, July16, 2020
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Marine Weather and Tides
Rensselaer, NY

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 5:30AMSunset 8:31PM Thursday July 16, 2020 12:06 PM EDT (16:06 UTC) Moonrise 2:04AMMoonset 4:58PM Illumination 14% Phase: Waning Crescent; Moon at 26 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 Rensselaer, NY
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location: 42.66, -73.74     debug


Area Discussion for - Albany, NY
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FXUS61 KALY 161418 AFDALY

AREA FORECAST DISCUSSION National Weather Service Albany NY 1018 AM EDT Thu Jul 16 2020

SYNOPSIS. High pressure will shift east off the coast today as a low pressure system approaches. The low pressure system will move across the region tonight and Friday bringing showers and some thunderstorms to the area. It will become hot and humid as we head through the weekend into early week with dangerous heat conditions expected to develop.

NEAR TERM /UNTIL 6 PM THIS EVENING/. As of 1000 AM EDT . Stratus deck lingers across the majority of the region per the hires GOES 16 visible channel 2 imagery this morning. 12Z sounding reflects the steep cap in place at and just above H750 which may be the culprit for these clouds lingering longer. Some breaks in the overcast should occur with strong July sunshine as we watch upstream convective development and initiation. At the moment, atmos is stable per the wave patterns seen in the GOES. However, 12Z reflectivity forecasts just arrived as western into central NY will likely see additional destabilization for convective initiation to commence with some showers approaching our Dacks CWA at or after 21Z. So main update was to cloud coverage this morning with some improvements from the Capital Region and points southward through the Hudson River Valley and portions of Litchfield County. Forecast highs look good per our 12Z sounding.

Prev Disc.. The surface high centered over New Brunswick and extending down the eastern seaboard will shift off the coast as a low pressure system approaches from the Great Lakes Region today. The upper ridge axis over the region will also shift off to our east today.

There is widespread stratus across most of the local area. It will lift and break up as the morning progresses. However high and mid levels will stream in ahead of the approaching low pressure system this afternoon. By later in the afternoon, there will be chances for some showers in the western Adirondacks.

Looking at seasonably warm temperatures today with highs in the lower 80s in the Hudson and Mohawk Valleys with 70s across the rest of the local area. Winds will be southerly.

SHORT TERM /6 PM THIS EVENING THROUGH SATURDAY NIGHT/. The low pressure system will move across the region tonight and Friday. The system's warm front and cold front are expected to move across the region on Friday. Chances for showers will increase tonight as isentropic lift increases ahead of the system's warm front and as the strengthening low level jet moves into the region. An 850 mb 35 to 50 knot jet will move across the region overnight into early Friday morning. The best chances for showers will be along and north of I-90. Surface instability won't develop until the passage of the warm front Friday. However, elevated instability is expected as guidance indicates negative Showalter values so have slight chances for thunderstorm mentioned for much of tonight. Precipitable water values are expected to rise to 1 1/2 to near 2 inches in the evening so heavy downpours can be expected.

The local area will be in the warm sector for much of Friday with the passage of the cold front expected late in the day into the early evening. Have chance pops of convection based on the expected coverage. In the evening, any lingering convection should be confined to areas to the south and east of the Capital District. Due to the extensive cloud cover only expecting highs in the mid 70s to lower 80s however it will become very humid with dew points rising into the mid 60s to around 70 degrees.

Ridging builds in at the surface and aloft as we head into the weekend. 850 mb temperatures are forecast to be in the mid to upper teens Saturday with a westerly flow. Expecting highs into the lower 90s up the immediate Hudson River Valley with 80s elsewhere. Any readings in the 70s are expected to limted to above 2500 feet. Heat indices into the mid 90s are possible for some locations in mid Hudson Valley Saturday afternoon.

LONG TERM /SUNDAY THROUGH WEDNESDAY/. Sunday is shaping up to be the hottest day of the long term period and also driest. 850 hPa temperatures are projected to rise to 19- 21C. This will equate to high temperatures rising into the mid- to upper 80s in the higher terrain and low to mid-90s in the valleys. With the addition of high humidity levels (dew points 65-70F), heat index values are expected to range from 85-95 in the higher terrain to 95-102 in the valleys.

From Sunday night to Monday, an area of low pressure will move across Quebec as a "cold" front attempts to work its way across at least a portion of the region. Any lingering showers and thunderstorms may pass across the region Sunday night with the best chances north and west of the Capital District. With the front potentially stalling across the area on Monday, additional showers and thunderstorms may develop during the afternoon and evening.

There remain model differences with regards to precipitation chances on Tuesday and Wednesday, mainly due to the strength of the ridge and if there is any upper-level support. Wednesday may be the better chance of the two for additional showers and thunderstorms due to an approaching upper-level shortwave from the Great Lakes. Regardless, will go with a blended approach and chance pops both days as the very warm and humid conditions will continue.

High temperatures starting on Monday will be mostly in the 80s (with some lower 90s in the valley locations from the Capital District to the mid-Hudson Valley) and then trend a degree or two lower each day for Tuesday and Wednesday. Lows will generally be in the 60s (except some lower 70s in the valleys Sunday night).

AVIATION /14Z THURSDAY THROUGH MONDAY/. Through 12z/Fri . Cloud deck is lifting across the terminals and now all sites with the exception of KPSF are now VFR. The deck will gradually lift to VFR at KPSF this morning. Once it lifts, VFR conditions will continue across the terminals through this evening.

Later tonight, an approaching system will bring scattered showers (greatest concentration at KGFL) and cigs back into the MVFR range.

Wind will be out of the south to southeast at 5-10 kt early this morning, then increase to 8-16 kt with gusts 20-25 kt later this morning through the afternoon. Wind will remain out of the south to southeast at 8-15 kt tonight with possible higher gusts (especially at KALB).

Outlook .

Friday Night: No Operational Impact. NO SIG WX. Saturday: No Operational Impact. NO SIG WX. Saturday Night: No Operational Impact. NO SIG WX. Sunday: No Operational Impact. NO SIG WX. Sunday Night: Low Operational Impact. Slight Chance of SHRA. Monday: Moderate Operational Impact Chance of SHRA. TSRA.

FIRE WEATHER. High pressure will shift east off the coast today as a low pressure system approaches. Minimum relative humidity values are expected to be in mainly in the 50s this afternoon. The low pressure system will move across the region tonight and Friday bringing showers and some thunderstorms to the area. It will become hot and humid as we head through the weekend into early next week.

HYDROLOGY. A low pressure system will move across the region tonight and Friday bringing showers and some thunderstorms to the area. Storms will be capable of heavy downpours as precipitable water values rise 1 1/2 to near 2 inches. This could result in some flooding of urban areas, low-lying and poor drainage areas. Widespread flooding is not expected as system will be progressive. Turning hot and humid over the weekend with mainly fair weather expected.

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 . IAA NEAR TERM . IAA/BGM SHORT TERM . IAA/Speciale LONG TERM . Rathbun AVIATION . Rathbun FIRE WEATHER . IAA HYDROLOGY . IAA


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ANMN6 - Hudson River Reserve, NY 45 mi36 min WSW 1 74°F 1025 hPa63°F
TKPN6 46 mi66 min 80°F

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Albany International Airport, NY8 mi75 minSSE 1110.00 miMostly Cloudy74°F61°F64%1025.1 hPa
Schenectady Airport, NY17 mi74 minS 6 G 1515.00 miMostly Cloudy75°F62°F65%1025.1 hPa

Link to 5 minute data for KALB

Wind History from ALB (wind in knots)
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Last 24hrCalmNE4E433NE4SE6S5SE4SE5SE8SE8SE8SE9SE11
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1 day agoN9NW7N14N9N7N4NW5N3NW3CalmNW3NW5NW4NW3N3NW3CalmN3CalmCalmN64NW3SW6
2 days agoW6NW7S8W12NW10
G16
NW11W9NW11NW6N5NW7NW5NW5W4W4W3CalmCalmCalmNW8NW74NW6N9

Tide / Current Tables for Albany, New York
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Albany
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Thu -- 02:03 AM EDT     Moonrise
Thu -- 02:20 AM EDT     4.78 feet High Tide
Thu -- 05:31 AM EDT     Sunrise
Thu -- 09:12 AM EDT     0.08 feet Low Tide
Thu -- 02:41 PM EDT     3.63 feet High Tide
Thu -- 04:57 PM EDT     Moonset
Thu -- 08:29 PM EDT     Sunset
Thu -- 09:15 PM EDT     -0.21 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.54.34.74.63.932.31.60.70.10.41.42.43.13.53.63.12.21.510.3-0.20.11.2

Tide / Current Tables for Castleton-on-Hudson, Hudson River, New York
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Castleton-on-Hudson
Click for Map
Thu -- 02:03 AM EDT     4.58 feet High Tide
Thu -- 02:04 AM EDT     Moonrise
Thu -- 05:32 AM EDT     Sunrise
Thu -- 08:43 AM EDT     0.18 feet Low Tide
Thu -- 02:24 PM EDT     3.43 feet High Tide
Thu -- 04:57 PM EDT     Moonset
Thu -- 08:29 PM EDT     Sunset
Thu -- 08:46 PM EDT     -0.11 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.74.34.64.33.52.721.30.40.20.81.82.53.13.43.32.71.91.30.80.1-0.10.61.8

Weather Map
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wmap_A
GEOS Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Albany, NY (12,3,4,5)
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Ground Weather Radar Station Albany, NY
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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 numerous 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.