|
Marine Weather and Tides
Version 3.4 |
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports. 6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen |
| Sunrise 6:17AM | Sunset 8:16PM | Saturday August 17, 2019 12:53 PM EDT (16:53 UTC) | Moonrise 8:37PM | Moonset 7:08AM | Illumination 96% |  |
LOZ062 Lake Ontario Open Waters From The Niagara River To Hamlin Beach- 646 Am Edt Sat Aug 17 2019
Today..South winds 10 knots or less. A chance of showers and Thunderstorms early, then showers and Thunderstorms likely from late morning on. Some Thunderstorms may produce gusty winds from late morning on. Waves 1 foot or less.
Tonight..South winds 10 knots or less becoming southwest. Patchy fog after midnight. A chance of showers late. Waves 1 foot or less.
Sunday..South winds less than 10 knots becoming southeast. A chance of showers in the morning, then a chance of showers and Thunderstorms in the afternoon. Waves 1 foot or less.
Sunday night..Southeast winds 5 to 10 knots becoming southwest. Showers likely with a chance of Thunderstorms in the evening, then a chance of showers and Thunderstorms overnight. Waves 1 foot or less.
Monday..Southwest winds 5 to 15 knots becoming north. A chance of showers and Thunderstorms during the day. Waves 2 feet or less.
Tuesday..Light and variable winds. A chance of showers and Thunderstorms. Waves 1 foot or less.
Wednesday..Southwest winds 5 to 15 knots becoming northwest 15 to 20 knots. Showers likely with a chance of Thunderstorms during the day, then a chance of showers Wednesday night. Waves 2 feet or less building to 3 to 5 feet. Winds and waves higher in and near Thunderstorms.
Today..South winds 10 knots or less. A chance of showers and Thunderstorms early, then showers and Thunderstorms likely from late morning on. Some Thunderstorms may produce gusty winds from late morning on. Waves 1 foot or less.
Tonight..South winds 10 knots or less becoming southwest. Patchy fog after midnight. A chance of showers late. Waves 1 foot or less.
Sunday..South winds less than 10 knots becoming southeast. A chance of showers in the morning, then a chance of showers and Thunderstorms in the afternoon. Waves 1 foot or less.
Sunday night..Southeast winds 5 to 10 knots becoming southwest. Showers likely with a chance of Thunderstorms in the evening, then a chance of showers and Thunderstorms overnight. Waves 1 foot or less.
Monday..Southwest winds 5 to 15 knots becoming north. A chance of showers and Thunderstorms during the day. Waves 2 feet or less.
Tuesday..Light and variable winds. A chance of showers and Thunderstorms. Waves 1 foot or less.
Wednesday..Southwest winds 5 to 15 knots becoming northwest 15 to 20 knots. Showers likely with a chance of Thunderstorms during the day, then a chance of showers Wednesday night. Waves 2 feet or less building to 3 to 5 feet. Winds and waves higher in and near Thunderstorms.
LOZ062 Expires:201908171515;;771385
FZUS61 KBUF 171046
GLFLO
Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
646 AM EDT Sat Aug 17 2019
For waters beyond five nautical miles of shore on Lake Ontario
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.
.SYNOPSIS...A warm front will slowly move across the lake today and
then north of the lake by Sunday. A 30.0 inch high will then build
into the Upper Great Lakes on Monday and Tuesday, while another weak
low slowly tracks across the Lower Great Lakes. This area of high
pressure will pass across the Lake Tuesday night, and shift to the
east Wednesday allowing a sharp cold front to cross the Lake
Wednesday evening.
LOZ062-171515-
7 Day Forecast for Marine Location Near Lyndonville, NY
Hourly EDIT Helplocation: 43.54, -78.21 debug
Area Discussion for - Buffalo, NY
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus61 kbuf 171459 afdbuf area forecast discussion national weather service buffalo ny 1059 am edt Sat aug 17 2019 Synopsis Several rounds of showers and thunderstorms are expected this weekend as weak systems move east across the region, but there will be plenty of dry time as well. Meanwhile, the airmass will slowly warm with increasing humidity levels. The warmth will last into next week. Near term through tonight As our already conditionally unstable airmass further destabilizes during the midday and afternoon... The multiple lines of showers and thunderstorms over the western counties will blossom into stronger convection as they move from the far western counties into the finger lakes region. The convection this afternoon will be assisted synoptically by a newly coupled h25 jet... While bulk shear values will increase from 30 to 40kts. Will maintain enhanced wording in the package for strong to severe convection with the risk for localized damaging winds and hail... Along with downpours that could produce localized amounts over an inch in less than 30 minutes. Showers and thunderstorms will taper off this evening with the departure of the shortwave, but there may be a few lingering showers and an isolated thunderstorm with the approach of another weaker wave late in the night. Expect a partial clearing behind the shortwave tonight, mainly from buffalo and rochester northward. With light winds in place, this may allow fog to develop with any clearing. Short term Sunday through Tuesday night This period will continue to feature active summer weather with storms possible each day. Temperatures will rise well into the 80s, with humidity creating apparent temperatures in the low to mid 90s across the lake plain. Sunday morning a weak warm front will lift across the region with possible early morning showers and thunderstorms across wny. Behind this warm front a sticky airmass will push into our region, one that will increase SBCAPE to 1000 to 2000 j kg. Two shortwaves will likely pass through the region, with each wave bringing enhanced mid level lift that will help to blossom thunderstorms. The first wave passes through our CWA midday... And will likely trigger storms... Of which some may bring gusty winds and heavy rainfall. Tracking the shortwave... Greatest chances for heavier storms will be southern portions of wny. A second shortwave will bring convection across the central great lakes and into the southern peninsula of ontario canada Sunday. This shortwave feature and storms will continue to push eastward Sunday night, likely bringing showers and thunderstorms to our western zones late Sunday evening and into the early morning hours of Monday. As the convective shortwave weakens Sunday night and available instability lowers post-storms, convection will weaken to just a few isolated showers late Sunday night. Monday a zonal flow will be found across the region, and with no discernible shortwaves or triggers for convection... It may be a quieter day for storms. We will still remain very unstable and a few thunderstorms could blossom within the afternoon heating. Greatest chances will likely be across the finger lakes region where the deeper instability will intersect with a ridge of higher theta-e. Monday night a weak cool front will push into the region from the nw, that will lower the humidity some across the north country. This zonal flow will continue into Tuesday. We expect again another hot and humid day with plenty of instability around, especially across wny. A frontal boundary... One that brought some drier air to the north country and towards areas just south of lake ontario will lift back northward through the day. Along this warm front more showers and thunderstorms will develop. Activity will mainly be across wny, with low chances for convection east of lake ontario through the day. Aloft and later in the day the region will begin to feel the |
influences of a great lakes trough... With 500 hpa heights beginning to fall. These falling heights will expand chances for showers and thunderstorms to the entire CWA Tuesday night. Long term Wednesday through Friday This period will feature the transition from summer's humidity and storms to a fallish period to close out the workweek. Wednesday's temperatures will be a touch lower than previous days... With 850 hpa temperatures in the mid to upper teens... And a fair amount of humidity and clouds around. As the upper level trough sharpens over the great lakes, height falls within a still very unstable environment will promote widespread showers and thunderstorms... Increasing in numbers through the day until a cold front passes through. There will likely be increased coverage area of storms in both the prefrontal trough through the day, and then towards evening when the actual cold front enters our region. Storms through the day Wednesday and into the early evening hours could become strong with both gusty winds and hail possible. Increased lapse rates, bulk wind shear values to 35 to 40 knots, and cape deepening through the mid levels on forecast soundings will support these stronger storms. This cold front may come through in pieces... With the warmer lakes holding the arrival of cooler air some. Wednesday night showers along the front and moist cyclonic flow aloft will also come with a northwest breeze that will bring much cooler air. Both air and dewpoint temperatures Thursday morning will be a solid 10 to 15 degrees fahrenheit cooler than the levels they were at 24-hrs before hand. Following the mid week cold frontal passage, a large area of high pressure over the upper great lakes will then build southeast across the lower great lakes from Thursday into Friday. This will usher in a notably cooler and less humid airmass. Aside from a low chance for a few showers on Thursday across eastern areas under the upper level trough, and possible lake effect rain shower southeast of the lakes Thursday night, most of the area will see a dry end to the work week. Highs will range from the upper 60s to the low to mid 70s both days, with dew points in the 50s. Lows Thursday night will drop into the 40s for the traditional cooler areas of the southern tier and east of lake ontario. Aviation 15z Saturday through Wednesday WhileVFR conditions will prevail across the reaction during the midday and afternoon... Multiple lines of showers and thunderstorms will become stronger as they push east. These storms could produce an hour or so of ifr to MVFR conditions while having the risk of producing localized wind gusts in excess of 40 kts. Showers and storms will exit to the east late this afternoon with dry weather prevailing after 00z. There will again be a risk for some fog to develop tonight with relatively light winds and a partial clearing. Outlook... Sunday through Wednesday... MainlyVFR with a chance of -tsra. Marine Winds will become more southerly to southwesterly through this weekend as a warm front pushes across the lower great lakes. Both winds and waves are likely to remain below small craft thresholds through mid-week. A cold front will bring increasing northwesterly winds late Wednesday, which will increase wave action and may require small craft headlines. Buf watches warnings advisories Ny... None. Marine... None. Synopsis... Apffel zaff near term... Apffel rsh short term... Thomas long term... Jm thomas aviation... Apffel rsh marine... Apffel zaff |
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 |
| OLCN6 - Olcott Harbor, NY | 30 mi | 53 min | SSE 8 G 11 | 68°F | 1014.6 hPa (+0.0) | |||
| RCRN6 - 9052058 - Rochester, NY | 36 mi | 53 min | 68°F | 1014.6 hPa (+1.6) | ||||
| RPRN6 - Rochester, NY | 38 mi | 53 min | SW 4.1 G 7 | 68°F | ||||
| 45012 - Lake Ontario Buoy - 20NM North Northeast of Rochester, NY | 43 mi | 33 min | Calm G 1.9 | 68°F | 71°F | 1014.2 hPa | 66°F | |
| 45159 - NW Lake Ontario Ajax | 44 mi | 53 min | SE 12 G 14 | 67°F | 65°F | 1012.5 hPa (-1.0) |
Wind History for Buffalo, NY
(wind in knots) EDIT (on/off) Help| 1 PM | 2 PM | 3 PM | 4 PM | 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 | |
| Last 24hr | SW | W | W | W | SW | SW G13 | SW G10 | SW | SW | SW G15 | SW G12 | S | S | S | S | SE | SE | SE | SE | SE | NE | NW G15 | NE | S G10 |
| 1 day ago | E G9 | NE G12 | NE G14 | NE G11 | NE G10 | NE G14 | NE G13 | NE G13 | NE G10 | NE G11 | NE G11 | NE G10 | E G12 | E | E | E | E | N | N | E | SE | W | SW | W |
| 2 days ago | N G12 | NE | N | N | N G17 | NE | N | N | NE | NE G8 | NE | NE | E | E | E | E | E | NE | E G12 | E G11 | E G9 | E | E G8 | E G5 |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Rochester, Greater Rochester International Airport, NY | 41 mi | 2 hrs | SSW 5 | 10.00 mi | Mostly Cloudy | 76°F | 64°F | 67% | 1014.6 hPa |
Link to 5 minute data for KROC
Wind History from ROC (wind in knots)
| 1 PM | 2 PM | 3 PM | 4 PM | 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 | |
| Last 24hr | E | Calm | SE | NE | NE | NW | E | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | S | SW | SW | S | W | |
| 1 day ago | SE | E G14 | SE | E | E | E | NE | E | E | SE | Calm | Calm | E | Calm | Calm | Calm | Calm | S | Calm | SW | Calm | Calm | N | Calm |
| 2 days ago | NE | NE | E | NE | N | N | N | NE | NE | Calm | Calm | SW | Calm | SW | Calm | Calm | Calm | Calm | Calm | Calm | SE | SE | SE | SE |
Tide / Current Tables for
EDIT Weekend mode (on/off) (on/off) HelpTide / Current Tables for
EDIT (on/off) HelpWeather Map and Satellite Images
(on/off) HelpWeather Map
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 (12,3,4,5)
(on/off) Help
Ground Weather Radar Station Buffalo, NY
(on/off) Help
Ad by Google
|
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. |