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Marine Weather and Tides Henderson, 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.

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Sunrise 5:28AM

Sunset 8:32PM

Monday May 22, 2017 5:34 PM EDT (21:34 UTC)

Moonrise 2:50AM

Moonset 3:40PM

Illumination 8%

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.

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Marine Forecasts

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LOZ045 Mexico Bay To The Saint Lawrence River Along Lake Ontario- 431 Pm Edt Mon May 22 2017 Tonight..Southwest winds 15 to 20 knots becoming south and diminishing to 5 to 10 knots. Mostly cloudy early...then becoming partly cloudy. Waves 2 feet or less. Tuesday..South winds 5 to 10 knots becoming southwest. Mostly Sunny. Waves 1 foot or less. Tuesday night..South winds less than 10 knots becoming east. Partly to mostly cloudy. Waves 1 foot or less. Wednesday..East winds less than 10 knots becoming north. A chance of rain in the afternoon. Waves 1 foot or less. Wednesday night..Northeast winds 5 to 15 knots becoming southeast 15 to 20 knots. A chance of rain. Waves 2 feet or less. Thursday..Southeast winds 15 to 20 knots becoming east 10 to 15 knots. Showers likely with a chance of Thunderstorms. Waves 1 to 3 feet subsiding to 1 foot or less. Friday..Northeast winds 10 knots or less becoming northwest. Showers likely during the day...then a chance of showers Friday night. Waves 1 foot or less. Saturday..North winds less than 10 knots becoming southeast. Mostly cloudy. Waves 1 foot or less. Winds and waves higher in and near Thunderstorms.

LOZ045 Expires:201705230300;;043840 FZUS51 KBUF 222037 NSHBUF NEARSHORE MARINE FORECAST NATIONAL WEATHER SERVICE BUFFALO NY 431 PM EDT MON MAY 22 2017 FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE WAVES ARE THE SIGNIFICANT WAVE HEIGHT - THE AVERAGE OF THE HIGHEST 1/3 OF THE WAVE SPECTRUM. OCCASIONAL WAVE HEIGHT IS THE AVERAGE OF THE HIGHEST 1/10 OF THE WAVE SPECTRUM. LOZ045-230300-

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7 Day Forecast for Marine Location Near Henderson, NY

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Area Discussion for - Buffalo, NY

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Fxus61 kbuf 222026 afdbuf area forecast discussion national weather service buffalo ny 426 pm edt Mon may 22 2017 Synopsis Showers east of lake ontario will taper off this afternoon with clouds slowly clearing from west to east during the late afternoon and evening. A weak ridge of high pressure will bring dry weather Tuesday through most of Wednesday. Low pressure will then bring more rain to the region Wednesday night and Thursday. Near term /through Tuesday/ An area of showers along a pre-frontal trough will exit the eastern lake ontario region through mid afternoon. The actual surface cold front is lagging the pre-frontal trough by about 50 miles and may produce a few more scattered showers through late afternoon east of lake ontario. Otherwise the rest of the area will remain dry, with clouds giving way to increasing amounts of sunshine across western ny through late afternoon with post-frontal drying and a developing stable lake shadow off lake erie combining to dissipate cloud cover. A weak ridge of high pressure surface and aloft will build over the lower great lakes tonight. Subsidence and drying associated with this high will continue to support clearing this evening, with the eastern lake ontario region the last area to clear overnight. The clearing skies and a fairly cool airmass will allow for some radiational cooling overnight. Expect lows in the upper 40s to around 50 on the lake plains, with low to mid 40s in the cooler sections of the interior southern tier and lewis county. On Tuesday the weak surface ridge will remain in place from the upper ohio valley to new england. Meanwhile warm advection and a weak mid level shortwave will move northeast across southern ontario. This feature will have little direct impact on our area, with any scattered showers remaining north of the canadian border. It will bring some increase in moisture and cloud cover, with both mid level clouds and diurnal cumulus developing across the region. Stable lake shadows will allow more sunshine northeast of lakes erie and ontario. Temperatures will rebound, with highs in the lower to mid 70s away from lake influences. Weak synoptic scale flow and strong differential heating will allow local lake breezes to develop with winds becoming onshore along all the shorelines in the afternoon, keeping temperatures cooler within a few miles of the lakes. Short term /Tuesday night through Thursday night/ Bubble of high pressure becoming centered across new england will maintain dry weather across the area through the first half of Wednesday. Overnight lows Tuesday night will fall back into the upper 40s to lower 50s. High pressure will exit the region Wednesday as a deepening surface low slowly tracks into the ohio valley. Model tracks differ slightly, but most of the guidance eventually tracks this low across ohio Wednesday night and across lake erie on Thursday. Increasing moisture transport and lift on the front side of the approaching low will eventually allow precipiation to blossom across the area. Onset time may be slowed a bit from continuity based on slower track of approaching surface low. Warm air advection and slower timing of precipitation onset should allow high temperatures Wednesday to reach the lower to mid 70s. Does look like there will be at least a solid 6 to 12 hour period of fairly steady rain starting late Wednesday in the far west and filling in across the rest of the area through Thursday. The steady rain should taper to more showery weather by Thursday night as the surface low starts to shift east of the area. Long term /Friday through Monday/ Our region will be under the influence of a progressive... Northern branch of a split flow during this period. While this will allow for fairly frequent shower activity... A closed off gomex will keep

rainfall amounts to a minimum. This pattern will also keep temperatures from straying too far from normal... But on average... they will tend to run a few degrees above typical late may values. Breaking this down on a day to day basis... a stacked storm system over eastern new york Friday morning will exit across new england during the afternoon and evening. This will keep some showers in place over our region... Particularly east of lake ontario where pops will be raised to likely. Temperatures on Friday will climb into the 60s. Ridging will build across the lower great lakes late Friday night and Saturday. While the models are not convinced that dry weather will prevail during this time frame... Am fairly confident that the aforementioned ridging and lack of mid level moisture will translate into fair dry conditions. This should also help Saturday afternoon temperatures climb into the 70s across most of the western counties. As the ridge pushes east of our region Sunday and Monday... The next longwave trough will dig across the upper portions of the mississippi valley and great lakes region. This will result in deteriorating conditions... Particularly late Sunday into Monday. In other words... As it stands now we should be able to get through most of Sunday before the skies 'open' again. Given the inconsistencies between the medium range ensembles though... Confidence is lower than normal. Aviation /21z Monday through Saturday/ An area of showers will exit the eastern lake ontario region this afternoon as a cold front sweeps east across the area. Abundant low stratus along and behind the cold front will continue to bring a mix ofVFR and MVFR CIGS to the region this afternoon, with skies slowly clearing and returning toVFR from west to east from late afternoon through the evening. A weak ridge of high pressure will then build over the lower great lakes region tonight and Tuesday withVFR prevailing. Weak warm advection and diurnal cumulus will bring some increase in cloud cover on Tuesday, with CIGS remainingVFR. Outlook... Tuesday night and Wednesday... MainlyVFR. Wednesday night...VFR/MVFR with a chance of showers. Thursday...VFR/MVFR with showers likely. Friday...VFR/MVFR with a chance of showers. Saturday... MainlyVFR. Marine Southwest flow in the wake of a departing cold front will continue to bring small craft advisory conditions to lake erie through early this evening with waves building to 3-5 feet. Winds will be lower on lake ontario and also shorter duration, which will prevent any notable wave action. Weak high pressure will then build over the lower great lakes tonight through Wednesday, providing a period of light winds and flat wave action through the middle of the week. Buf watches/warnings/advisories Ny... Beach hazards statement until 8 pm edt this evening for nyz010- 019-085. Marine... Small craft advisory until 8 pm edt this evening for lez020- 040-041. Synopsis... Hitchcock near term... Hitchcock short term... Tma long term... Rsh aviation... Hitchcock marine... Hitchcock

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
ALXN6 - 8311062 - Alexandria Bay, NY	32 mi	46 min			51°F		1011.5 hPa
45135 - Prince Edward Pt	34 mi	94 min	W 18 G 19	50°F	45°F	1 ft	1012.6 hPa (+0.1)
OSGN6 - 9052030 - Oswego, NY	35 mi	46 min	W 14 G 20	53°F			1013.3 hPa	46°F
OBGN6 - 8311030 - Ogdensburg, NY	67 mi	46 min		60°F			1011.3 hPa
RPRN6 - Rochester, NY	85 mi	34 min	WSW 13 G 25	60°F			1015.2 hPa (+1.0)

Wind History for Oswego, NY

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SE9 G15

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S8 G11

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SE13 G18

SE13 G18

SE12 G21

SE11 G15

SE10 G13

S15 G20

SE11 G17

SE16 G20

SE15 G21

SE12 G16

S6 G11

SE10 G15

SE12 G15

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SE12 G15

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1 day ago

N10

NE8 G11

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NE3 G6

NE8 G11

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NE6

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SE8 G11

SE10 G16

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SE8 G16

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SE9 G13

SE11 G17

SE12 G18

SE9 G18

SE11 G19

SE11 G21

SE11 G17

SE12 G20

SE14 G22

SE11 G16

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W9 G14

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W7 G11

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SW2

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N4

NE5 G9

NE8 G17

NE8 G13

NE8 G13

NE12 G18

NE12 G19

NE15 G19

NE16

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N14

N14 G17

N11 G15

N9 G12

N9

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Watertown, Watertown International Airport, NY	13 mi	38 min	SW 12 G 20	10.00 mi	Overcast	58°F	52°F	81%	1012.8 hPa

Wind History from ART (wind in knots)

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SE3

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Calm

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SW6 G15

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S9 G15

SW10 G20

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1 day ago

N11

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W8

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NE5

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NE14

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NE14 G19

NE14 G18

NE9 G18

NE11

NE12 G18

NE10

NE12

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Tide / Current Tables for

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Tide / Current Tables for

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Weather Map and Satellite Images

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Weather Map

IR Satellite Image from GEOS GOES Local Image of Northeast    EDIT

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Wind Forecast for Buffalo, NY (17,4,5,8)

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Ground Weather Radar Station Montague, NY

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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.