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Marine Weather and Tides
Version 3.4 |
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome. 10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name. |
Sunrise 6:55AM | Sunset 5:44PM | Wednesday February 20, 2019 6:39 PM EST (23:39 UTC) | Moonrise 7:10PM | Moonset 7:50AM | Illumination 98% | ![]() |
LOZ044 Expires:201902201600;;226119 Fzus51 Kbuf 201131 Nshbuf Nearshore Marine Forecast National Weather Service Buffalo Ny 631 Am Est Wed Feb 20 2019 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. Loz043-044-201600- Hamlin Beach To Mexico Bay Along Lake Ontario Including Irondequoit Bay- 631 Am Est Wed Feb 20 2019
.small craft advisory in effect from 4 pm est this afternoon through late Thursday night...
Today..Southeast winds 5 to 15 knots increasing to 15 to 20 knots. A chance of light snow early this afternoon. Light snow likely late. Waves 1 foot or less building to 2 to 4 feet.
Tonight..Southeast winds 15 to 20 knots becoming southwest. Rain, light snow, light sleet and light freezing rain in the evening, then rain and light freezing rain overnight. Waves 2 to 4 feet subsiding to 1 to 3 feet.
Thursday..West winds 15 to 25 knots increasing to 30 knots. Mostly cloudy in the morning, then becoming partly Sunny. Waves 3 to 6 feet building to 7 to 10 feet. Waves occasionally around 13 feet.
Thursday night..West winds 15 to 25 knots becoming northwest and diminishing to 10 to 15 knots. Mostly cloudy. Waves 5 to 9 feet subsiding to 2 to 4 feet. Waves occasionally around 11 feet.
Friday..Northwest winds 5 to 15 knots becoming south. Partly cloudy. Waves 1 to 3 feet subsiding to 1 foot or less.
Saturday..Southeast winds 5 to 15 knots. Rain Saturday night. Waves 2 feet or less.
Sunday..South winds 15 to 20 knots becoming west and increasing to 35 knot gales. Rain showers during the day, then snow showers likely Sunday night. Waves 1 to 3 feet building to 10 to 15 feet. Waves occasionally around 19 feet. The water temperature off rochester is 35 degrees.
.small craft advisory in effect from 4 pm est this afternoon through late Thursday night...
Today..Southeast winds 5 to 15 knots increasing to 15 to 20 knots. A chance of light snow early this afternoon. Light snow likely late. Waves 1 foot or less building to 2 to 4 feet.
Tonight..Southeast winds 15 to 20 knots becoming southwest. Rain, light snow, light sleet and light freezing rain in the evening, then rain and light freezing rain overnight. Waves 2 to 4 feet subsiding to 1 to 3 feet.
Thursday..West winds 15 to 25 knots increasing to 30 knots. Mostly cloudy in the morning, then becoming partly Sunny. Waves 3 to 6 feet building to 7 to 10 feet. Waves occasionally around 13 feet.
Thursday night..West winds 15 to 25 knots becoming northwest and diminishing to 10 to 15 knots. Mostly cloudy. Waves 5 to 9 feet subsiding to 2 to 4 feet. Waves occasionally around 11 feet.
Friday..Northwest winds 5 to 15 knots becoming south. Partly cloudy. Waves 1 to 3 feet subsiding to 1 foot or less.
Saturday..Southeast winds 5 to 15 knots. Rain Saturday night. Waves 2 feet or less.
Sunday..South winds 15 to 20 knots becoming west and increasing to 35 knot gales. Rain showers during the day, then snow showers likely Sunday night. Waves 1 to 3 feet building to 10 to 15 feet. Waves occasionally around 19 feet. The water temperature off rochester is 35 degrees.
LOZ044
7 Day Forecast for Marine Location Near Oswego, NY
Hourly EDIT Helplocation: 43.47, -76.51 debug
Area Discussion for - Buffalo, NY
  (on/off)  Help NOTE: mouseover dotted underlined text for definitionFxus61 kbuf 202325 afdbuf area forecast discussion national weather service buffalo ny 625 pm est Wed feb 20 2019 Synopsis A light wintry mix of precipitation will develop this evening and gradually transition to rain overnight as warmer air arrives. This will end by early Thursday morning as a cold front slides through the area. High pressure will return for the rest of the work week before a much stronger system arrives this weekend. Rain will be common by Saturday night before a very strong cold front likely brings very strong, damaging winds on Sunday. Near term through Thursday The first wave of upper level moisture and warm advection is spreading into the north country early this evening with some spotty light snow. Any accumulation will be minimal as this area of light snow continues to erode as it moves into a dry airmass ahead of the system. There is a break behind the initial area of light snow from the genesee valley into the western finger lakes and points southeast of lake ontario. The next round of steadier precipitation is moving into chautauqua county, and this will quickly overspread the area this evening. This next round of precipitation is associated with a deeper wave and will bring much more widespread precipitation than the initial wave. Temperatures are at or just above freezing along the lake erie shore northeastward to buffalo and niagara falls, and temperatures will continue to rise with the arrival of the next batch of precipitation as southeast downslope winds and warm advection continues. This will allow most of the precipitation to fall as rain along the lake erie shore to the buffalo metro area. Inland and farther east the near surface cold air will likely hold long enough to support a brief period of freezing rain at the onset, with the longest period of freezing rain across the colder valley locations of the western southern tier and also east of lake ontario. Any ice accumulation will be very light in most areas, but may reach a tenth of an inch across the southern tier valleys and a few valleys in the western finger lakes and east of lake ontario. All of this will change to rain overnight from west to east as warmer air spreads into the region, and any ice that does accumulate will melt. A cold front slices through the area on Thursday with some gusty winds in its wake. Temperatures will likely MAX out early in the day as cold advection starts. So with little upward temperature mobility and gusts to 35 mph or so, it will feel colder than it likely will be for much of Thursday. Short term Thursday night through Saturday night Generally zonal flow and slowly rising mid level heights through Friday night, as weak upper ridging and accompanying surface high pressure slide through the region. This pattern will ensure dry weather across the region. The only exception may be early Thursday night as some lingering light precipitation will be possible east of lake ontario, primarily focused on the higher terrain of the adirondacks. The respite from precipitation will come to an end later Saturday and Saturday night. A dynamic upper level wave trough will track through northern mexico on Friday, with rapid cyclogenesis taking place over the central plains on Saturday. It looks like some additional upper level energy coming out of the pacific northwest will help deepen the storm to 980 mb or lower as the system tracks through the upper midwest to the western great lakes through Saturday night. As this occurs, a significant amount of moisture will be transported northward back into the eastern great lakes. While the day on Saturday for the most part looks dry, clouds will increase and thicken from the south during the course of day. Some patchy light rain could reach far western new york by the end of the day. A milder day is expected with temperatures warming into the 40s, perhaps nearing 50f over the western counties. Rain will eventually overspread the entire region Saturday night as low level moisture transport accompanies a northward moving warm front. Long term Sunday through Wednesday Widespread damaging winds likely Sunday... a very strong storm system will move across the central great lakes and into quebec Sunday-Sunday night. Model guidance continues to show a favored track for western and north central ny to receive widespread high, damaging winds. The past few model runs of the gfs has lowered the central pressure to 974mb as it tracks to the northwest, which is now close to the ecmwf. With these two global models in good agreement, this far out, confidence is moderate-high that the region should see a high wind event Sunday-Sunday night. Going into the details, a mid-level trough with a 1.5 mb pv intrusion will be following the strong surface low pressure as it |
cuts the great lakes. This will cause the low to slow its deepening process as it moves into eastern canada. This won't really matter in the potential for high winds as a strong low-level jet will already be across western ny by Sunday morning. The core of the low-level jet will likely move across western ny and into north-central ny by afternoon. At this point, a cold front will be moving across the region while southwest 925-850mb winds align. Strong subsidence with lapse rates around 9 deg c km will mix gusts to 55 to 65 mph starting at some point Sunday and continuing into the evening. This prolonged period of strong gusts will cause widespread wind damage if they pan out. Please keep in mind though that at this point... It is only a forecast... Albeit one with increasing confidence. It will be important to stay tuned to updated forecasts and possible statements headlines as we progress through the rest of the week. As a side note... The front will be accompanied by some showers on Sunday... Mainly ahead of it... And then several hours after it moves through. Winds will remain strong into Monday morning as the 6hr pressure change between the exiting strong low pressure to the north and the approaching high pressure is on the order of 10-12 mb. Gusts of 40- 50 mph will likely continue into Monday. Cold air will also being moving into the region at this time and snow showers are expected with lake enhancement south-southeast of both lakes. Minor accumulations are expected at this time. Temperatures will be above normal Sunday-Sunday night before cold air advection brings temperatures below-normal for much of next week. Aviation 00z Thursday through Monday Spotty light snow will continue through mid evening across the north country with MVFR vsby. The next round of precipitation will spread across the region from southwest to northeast this evening. This will fall briefly as freezing rain inland from the lakeshores before changing to rain overnight. Vsby will generally drop to MVFR in the steadier precipitation. Widespread MVFR CIGS will continue to develop this evening with ifr across higher terrain. The rain will taper off quickly from west to east late tonight, leaving mainly dry conditions for Thursday. The one exception may be across the higher terrain east of lake ontario where some light upslope rain and snow showers may continue through the day with local MVFR vsby. The widespread MVFR CIGS will continue through much of the day Thursday in low stratus behind the cold front. Outlook... Friday and Saturday...VFR. Sunday... MVFR or ifr with rain, then snow. Strong winds. Monday...VFR MVFR with scattered snow showers. Marine The center of a storm system will cut through the central great lakes tonight, with southeast winds veering to southwesterly tonight. While these winds will keep the higher waves over the canadian waters, the winds may flirt with small craft thresholds later today and tonight. Thursday these southwest winds will increase further, and will place SCA on the lakes through Thursday night. Winds will also reach low end SCA on the niagara river later tonight and tomorrow. A powerful storm system will cut through the central great lakes Sunday and Sunday night. As this system rapidly deepens it will produce at least gale force winds on the lakes, with storm force wind gusts likely. Buf watches warnings advisories Ny... Winter weather advisory until 7 am est Thursday for nyz006>008. Winter weather advisory until 1 am est Thursday for nyz003>005- 012>014-019>021-085. Winter weather advisory until 10 pm est this evening for nyz002-011. Marine... Small craft advisory from 1 am to 4 pm est Thursday for lez020. Small craft advisory until 10 pm est Thursday for lez040- 041. Small craft advisory from 1 am to 4 pm est Thursday for loz030. Small craft advisory until 4 am est Friday for loz042>044. Small craft advisory from 1 am Thursday to 4 am est Friday for loz045. Synopsis... Fries near term... Fries hitchcock short term... Tma long term... Hsk rsh aviation... Hitchcock marine... Fries |
Weather Reporting Stations
EDIT (on/off)  Help NOTE: Click on distance to see the station location on a mapStations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
OSGN6 - 9052030 - Oswego, NY | 0 mi | 45 min | SSE 9.9 G 16 | 27°F | 1020.2 hPa | 21°F | ||
RPRN6 - Rochester, NY | 59 mi | 39 min | SSE 12 G 17 | 32°F | ||||
RCRN6 - 9052058 - Rochester, NY | 61 mi | 45 min | 31°F |
Wind History for Oswego, NY
(wind in knots) EDIT (on/off)  Help7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | |
Last 24hr | SW G16 | SW G11 | SW G11 | S G10 | S G11 | S G13 | S | S | S | SE G10 | SE | S G9 | SE G11 | SE G12 | SE | SE G14 | SE G14 | SE G14 | SE G10 | SE G21 | SE G22 | SE G17 | SE G19 | SE G15 |
1 day ago | W G19 | W G20 | W G19 | NW G23 | N G17 | N G16 | N G17 | N G17 | N G13 | N G14 | NE G12 | N G9 | SE G8 | SE | S | NW | W G13 | NW G17 | W G14 | W G12 | W | W G14 | SW | S |
2 days ago | NE G12 | NE G13 | NE G13 | NE | E | NE | NE G10 | E | E G7 | NE G14 | NE G17 | NE G22 | NE G23 | NE G24 | NE G22 | NE G22 | N G23 | N G23 | N G21 | N G17 | N G18 | NW G14 | NW | W |
Airport Reports
EDIT (on/off)  Help Click EDIT to display multiple airportsAirport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
Fulton, Oswego County Airport, NY | 10 mi | 45 min | SE 9 G 16 | 5.00 mi | Overcast with Haze | 26°F | 19°F | 78% | 1021.1 hPa |
Wind History from FZY (wind in knots)
7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | |
Last 24hr | SW | SW | SW | S | S | Calm | Calm | S | Calm | Calm | SE | E | Calm | SE | E | E | SE | E | SE | SE | SE G17 | SE G16 | ||
1 day ago | NW | W | SW | SW | NW | N | N | Calm | Calm | NE | Calm | Calm | Calm | Calm | Calm | Calm | NW | NW | W | W | W | SW | S | |
2 days ago | NE | NE | NE | NE | E | E | E | NE | NE | N | N | N | N | N | N | N G21 | NW | N | N | NW G18 | NW | W |
Tide / Current Tables for
EDIT RT Ports Option Weekend mode (on/off) (on/off)  HelpTide / Current Tables for
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GOES 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 (18,4,5,8)
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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. |