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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 6:59AM | Sunset 5:48PM | Wednesday February 20, 2019 5:13 PM EST (22:13 UTC) | Moonrise 7:15PM | Moonset 7:54AM | Illumination 98% |  |
LOZ043 Hamlin Beach To Mexico Bay Along Lake Ontario Including Irondequoit Bay- 1228 Pm Est Wed Feb 20 2019
.small craft advisory in effect from 4 pm est through late Thursday night...
This afternoon..Southeast winds 10 to 15 knots increasing to 15 to 20 knots. A chance of light snow early, then light snow likely late. Waves 1 to 3 feet building to 2 to 4 feet.
Tonight..Southeast winds 15 to 25 knots becoming southwest. Light snow and light rain in the evening, then light rain and light freezing rain overnight. Waves 2 to 4 feet subsiding to 1 to 3 feet.
Thursday..West winds to 30 knots. A chance of light rain in the morning. 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 through late Thursday night...
This afternoon..Southeast winds 10 to 15 knots increasing to 15 to 20 knots. A chance of light snow early, then light snow likely late. Waves 1 to 3 feet building to 2 to 4 feet.
Tonight..Southeast winds 15 to 25 knots becoming southwest. Light snow and light rain in the evening, then light rain and light freezing rain overnight. Waves 2 to 4 feet subsiding to 1 to 3 feet.
Thursday..West winds to 30 knots. A chance of light rain in the morning. 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.
LOZ043 Expires:201902202215;;239470
FZUS51 KBUF 201728
NSHBUF
Nearshore Marine Forecast
National Weather Service Buffalo NY
1228 PM 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.
LOZ043-044-202215-
7 Day Forecast for Marine Location Near Irondequoit, NY
Hourly EDIT Helplocation: 43.27, -77.6 debug
Area Discussion for - Buffalo, NY
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kbuf 202134 afdbuf area forecast discussion national weather service buffalo ny 434 pm est Wed feb 20 2019 Synopsis A light wintry mix of precipitation will continue to develop over the area through the evening but gradually transition to rain overnight as warmer air arrives. This will wind down Thursday 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 ushers in much colder air for next week on the heels of likely damaging winds behind the front. Near term through Thursday The first wave of upper level moisture is already sagging to the southeast of the area early this afternoon as the flow of gulf of mexico moisture really never penetrated much into the area outside of the southern tier. In this area, some light snow has developed... And even likely a bit of wintry mix near wellsville, but with the moisture tap sagging southeastward and the mid- level dry slot encroaching from the west, precipitation will likely continue to be exceedingly light through the afternoon. In the mid-level dry slot that is advancing northeastward through the central into the eastern great lakes, precipitation is largely very light with scattered reports of light snow, sleet, and freezing drizzle. This will be the regime we find ourselves in for much of the remainder of the afternoon and evening with weak forcing and saturation resulting in scattered light wintry mix as temperatures slowly increase in warm advection. In fact, many areas in downslope southeasterly flow off the chautauqua ridge along the lake erie shore are already above freezing as of 2 pm. This area is likely to expand up the shore toward buffalo through the evening, which will largely preclude icing in this area. Farther inland, this process will take much longer, however. Because of this regime, winter weather advisories for icing have been cancelled for the buffalo and niagara falls areas while maintained inland in the more difficult to mix out valleys. A deeper wave associated with the upper low over the western great lakes will approach for late this evening and early overnight, bringing a much better chance of precipitation. This will come in and usher above freezing temperatures from west to east across the area. As it is coming in, areas will probably trend from freezing rain to a cold rain, ending the threat for further icing and allowing the winter weather advisories to expire. 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 22z Wednesday through Monday Light wintry mix has moved into the southern tier and while all percipition should remain light, some of this should develop in a scattered fashion at the other sites through the evening as temperature run up toward and above freezing. This will allow all precipitation to transition to rain and drizzle overnight as cigs fall off to low MVFR. Gusty winds will return on Thursday from the wsw, bringing visibilities back up eve as CIGS remain MVFR. Outlook... Thursday...VFR MVFR with scattered rain or snow showers. 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 today 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 short term... Tma long term... Hsk rsh aviation... Fries marine... Fries |
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a map| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
| RPRN6 - Rochester, NY | 0 mi | 73 min | SE 11 G 17 | 30°F | ||||
| RCRN6 - 9052058 - Rochester, NY | 1 mi | 43 min | 31°F | |||||
| OSGN6 - 9052030 - Oswego, NY | 59 mi | 43 min | SSE 13 G 22 | 29°F | 1022.3 hPa | 15°F |
Wind History for Oswego, NY
(wind in knots) EDIT (on/off) Help| 5 PM | 6 PM | 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 | |
| Last 24hr | SW | S | 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 |
| 1 day ago | NW | W | 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 |
| 2 days ago | NE G14 | NE G13 | 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 |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Rochester, Greater Rochester International Airport, NY | 11 mi | 19 min | S 15 G 21 | 10.00 mi | Overcast | 33°F | 24°F | 70% | 1019.9 hPa |
Wind History from ROC (wind in knots)
| 6 PM | 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 | |
| Last 24hr | W | Calm | S | SW | SW | W | SW | SW | Calm | Calm | Calm | Calm | Calm | Calm | Calm | SE | SE | SE | SE | SE | SE | SE | SE | S G21 |
| 1 day ago | W | W | W | W | W | W | SW | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W G16 | W |
| 2 days ago | E | E | E | E | E | E | NE | E | NE | NE | NE | NE | NE | NE G22 | N | N | N | N G16 | N | N | N | NW | NW | NW |
Tide / Current Tables for
EDIT RT Ports Option Weekend mode (on/off) (on/off) HelpTide / Current Tables for
EDIT (on/off) HelpWeather Map and Satellite Images
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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 (17,4,5,8)
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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 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. |