Wednesday, August5, 2020
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Marine Weather and Tides
Mayville, 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 6:13AMSunset 8:32PM Wednesday August 5, 2020 9:03 PM EDT (01:03 UTC) Moonrise 9:03PMMoonset 7:01AM Illumination 96% Phase: Waning Gibbous; Moon at 17 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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LEZ040 Buffalo To Ripley Along Lake Erie- 419 Pm Edt Wed Aug 5 2020
Tonight..West winds 15 to 20 knots becoming south and diminishing to less than 10 knots after midnight. Mainly clear this evening, then becoming partly cloudy. Waves 1 to 3 feet subsiding to 1 foot or less.
Thursday..Southeast winds 5 to 10 knots becoming northeast. Sunny. Waves 1 foot or less.
Thursday night..North winds 5 to 10 knots becoming east. Mainly clear in the evening, then becoming partly cloudy. Waves 1 foot or less.
Friday..East winds 5 to 10 knots becoming northeast. Mostly Sunny. Waves 2 feet or less.
Friday night..Northeast winds 10 knots or less. Mainly clear. Waves 1 foot or less.
Saturday..Southeast winds 10 knots or less. Sunny. Waves 1 foot or less.
Sunday..South winds 5 to 10 knots. Sunny. Waves 1 foot or less.
Monday..South winds 5 to 10 knots. A chance of showers and Thunderstorms Monday night. Waves 2 feet or less. Winds and waves higher in and near Thunderstorms.
LEZ040 Expires:202008060330;;987069 FZUS51 KBUF 052019 NSHBUF Nearshore Marine Forecast National Weather Service Buffalo NY 419 PM EDT Wed Aug 5 2020 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. LEZ040-041-060330-


7 Day Forecast for Marine Location Near Mayville, NY
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location: 42.25, -79.5     debug


Area Discussion for - Buffalo, NY
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FXUS61 KBUF 052338 AFDBUF

Area Forecast Discussion National Weather Service Buffalo NY 738 PM EDT Wed Aug 5 2020

SYNOPSIS. High pressure centered over the Upper Mid West will build across the Lower Great Lakes through Thursday. While a weak disturbance could bring parts of the area a few showers late Thursday night and Friday . fair and notably warmer weather will return for the weekend.

NEAR TERM /THROUGH THURSDAY/. Fair weather tonight with high pressure approaching from the Upper Mid West.

Upper low over Ontario and Quebec deamplifies into Thursday but it stays seasonably cool aloft with H85 temps around +8C. Given water temps on Lake Erie of 77F (25C) and 70F (21C) on Lake Ontario, over- water instability is sufficient enough for a lake response but mainly if supplemented by additional moisture. Slgt chc for a few showers will be on east end of Lake Ontario tonight into Thursday morning. Some hint that could see at least isolated showers into nw Niagara Peninsula off of western Lake Ontario as well. Though mainly a marine issue, a heads up that given the over-water instability present, any shower or even just an area of enhanced clouds along a convergence zone will have potential to produce waterspouts into Thursday morning.

SHORT TERM /THURSDAY NIGHT THROUGH SATURDAY NIGHT/. Dry weather will continue into Thursday night. A upper level low will track across the Lower Great Lakes through Friday. Moisture from a system moving across Virginia will enter western NY Thursday night into Friday. Clouds will increase into Friday morning while a few showers are possible across the western Southern Tier through Friday afternoon. The upper low will move into New England Friday night and moisture will diminish across the region. Highs Friday will reach the mid to upper 70s with a few places along the Lake Plains reaching 80.

High pressure returns Saturday and Saturday night. Daytime heating will produce surface based instability across the higher terrain Saturday afternoon. A few showers and storms are possible. Elsewhere will remain dry. Highs on Saturday will reach the upper 70s to low 80s. Lows Saturday night will fall to the upper 50s to low 60s.

LONG TERM /SUNDAY THROUGH WEDNESDAY/. Surface high pressure will slide off the coastline Sunday - Monday and this will allow for a return to greater low level moisture (humidity) and warmth. Temperatures at 850 hPa will rise into the high teens Celsius and this will bring surface temperatures into the lower 90s across the Lake Plains, and mid to upper 80s elsewhere. When combined with the increased humidity, apparent temperatures Monday will rise well into the 90s across the Genesee Valley and Finger Lakes region. The nearby surface high pressure and warming aloft combined with no deep moisture in the mid levels will hold back on precipitation chances for much of Sunday and Monday.

A cold front will approach the region Tuesday and early Wednesday. A shortwave will pass by well to our north, but within a prefrontal trough Tuesday, and then early Wednesday morning as the cold front passes there will be an increase in showers and thunderstorm chances. Humidity will lower later Wednesday, though summers warmth in the 80s will remain.

AVIATION /00Z THURSDAY THROUGH MONDAY/. High pressure approaching from the Upper Mid West will support fair dry weather through Thursday evening. The only fly in the ointment will be the potential for some late night fog in the valleys of the Srn Tier. This fog could become deep enough to lead to a few hours of MVFR to IFR vsbys at KJHW towards daybreak.

Outlook .

Thursday through Monday . VFR.

MARINE. Winds will continue to subside throughout the Lower Great Lakes tonight as high pressure will build in from the Upper Mid West.

Generally light winds and negligible waves can then be expected Thursday into Friday.

BUF WATCHES/WARNINGS/ADVISORIES. NY . Beach Hazards Statement until 9 PM EDT this evening for NYZ007. MARINE . Small Craft Advisory until 2 AM EDT Thursday for LOZ045.



SYNOPSIS . RSH NEAR TERM . JLA/RSH SHORT TERM . HSK LONG TERM . Thomas AVIATION . RSH MARINE . RSH


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NREP1 15 mi94 min WNW 9.9 G 13 71°F
DBLN6 - Dunkirk, NY 19 mi64 min WSW 11 G 14 70°F 1018.8 hPa (+0.0)
EREP1 32 mi46 min WNW 2.9 G 7
45167 34 mi84 min NW 3.9 G 9.7 70°F 77°F1018.4 hPa
45142 - Port Colborne 36 mi124 min W 14 G 18 72°F 75°F3 ft1018.2 hPa
PSTN6 - 9063028 - Sturgeon Point, NY 39 mi46 min 71°F 1018.7 hPa
BUFN6 - 9063020 - Buffalo, NY 54 mi46 min WNW 11 G 14 70°F 79°F1019.1 hPa31°F

Wind History for Buffalo, NY
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Dunkirk, Chautauqua County / Dunkirk Airport, NY21 mi71 minWSW 610.00 miFair70°F51°F51%1019 hPa

Link to 5 minute data for KDKK

Wind History from DKK (wind in knots)
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Last 24hrSW7S7SW6W6W9W7SW5SW6W9W9W5W7W8W7W9W7SW7
G16
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1 day agoSE6CalmSE5SE6CalmN4CalmCalmCalmCalmCalmCalmCalmSW4N6CalmNW4NW7W5W7
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2 days agoSW14
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S5S4S3S8S7S7S7SW10N4--CalmSE6CalmSE4CalmSE6

Tide / Current Tables for
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Tide / Current Tables for
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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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Buffalo, NY (21,6,7,8)
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Ground Weather Radar Station Buffalo, 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 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.