Lake Ontario - Open Waters from Hamlin Beach to Sodus Bay Marine Forecast
| This Afternoon...Southeast Winds 5 To 10 Knots Becoming East. Waves 1 Foot Or Less. |
| Tonight...East Winds 10 Knots Or Less Becoming South. Waves 2 Feet Or Less. |
| Sunday...South Winds 5 To 15 Knots Becoming Southwest. Waves 2 Feet Or Less. |
| Sunday Night...South Winds 5 To 15 Knots Becoming Southwest. Waves 2 Feet Or Less. |
| Monday...Southwest Winds 10 To 15 Knots Becoming Northeast 15 To 20 Knots. Waves 1 To 3 Feet Building To 2 To 4 Feet. |
| Tuesday...Northeast Winds 15 To 20 Knots Becoming East And Diminishing To 5 To 10 Knots. Waves 2 To 4 Feet Subsiding To 1 Foot Or Less. |
| Wednesday...East Winds 5 To 15 Knots Becoming South 15 To 20 Knots. Waves 2 Feet Or Less Building To 2 To 4 Feet. |
| Area Forecast Discussion National Weather Service Buffalo NY 539am EDT Sat Oct 24 2026 .WHAT HAS CHANGED... Isolated rain showers may accompany the passage of a cold front this Monday, especially across far-northern portions of North- Central NY, including the Thousand Islands. Otherwise no major changes were made to the forecast. .KEY MESSAGES... 1) Dry weather is expected the majority of the time through early next week. However, a few rain showers may accompany the passage of a cold front this Monday. KEY MESSAGE 1...Dry weather is expected the majority of the time through early next week. However, a few rain showers may accompany the passage of a cold front this Monday. Aloft, a ridge continues to build from the western Great Lakes and vicinity through tonight and then settles over the Northeast United States and vicinity this Sunday through Sunday night. At the surface, the ridge continues to affect our region as the embedded high pressure center wobbles generally S'ward from southern QC to the Mid-Atlantic states. Dry weather persists in our CWA (County Warning Area) as stabilizing subsidence accompanies the ridge. Sky will be clear during most of the time period, but passing cloudiness, primarily in the mid/upper-levels, is expected at times as moist isentropic ascent precedes the axes of shortwave troughs embedded in the primarily W'erly to NW'erly flow aloft, especially before daybreak this morning and again Sunday afternoon through Sunday night. Lows should reach mainly the mid 20's to mid 30's around daybreak this morning as clearing sky, weak or calm surface winds, and low humidity promote efficient radiational cooling. Highs should reach the mid 50's to lower 60's late this afternoon as weak WAA (Warm Air Advection - the movement of warm air) begins to develop along the western flank of the low-level ridge. Overnight lows mainly in the mid 20's to upper 30's are forecast around daybreak Sunday due to another round of efficient radiational cooling. Warmer highs, mainly in the upper 50's to upper 60's, are expected on Sunday and should be followed by overnight lows mainly in the mid 30's to upper 40's around daybreak Monday as the WAA regime strengthens somewhat along the western flank of the low-level ridge. On Monday, cyclonic W'erly to WNW'erly flow aloft and embedded shortwave troughs are expected to impact our region. Variable amounts of mainly mid/upper-level cloudiness are expected amidst moist isentropic ascent ahead of the shortwave trough axes. At the surface, the aforementioned ridge will exit generally SE'ward and be followed by the SE'ward passage of a weak cold front during the late morning through early afternoon. A rather dry low-level atmospheric column should permit a dry cold front passage across most of our CWA. However, forcing for ascent along the front may coincide with sufficient amounts of low-level moisture to permit the development of isolated and light rain showers across far-northern portions of Jefferson and Lewis Counties, including the Thousand Islands. Behind the front, another high pressure ridge builds from central Canada and vicinity. Late afternoon highs should reach mainly the mid 50's to mid 60's. During Monday night through Tuesday, the surface ridge will continue to affect our region as the embedded high pressure center moves from northern ON toward southwestern QC, while the ridge aloft builds from the Upper Midwest and eventually the western and central Great Lakes. Dry weather is expected as stabilizing subsidence accompanies the ridge. Low-level CAA behind Monday's cold front passage will contribute to lows reaching mainly the lower 20's to mid 30's around daybreak Tuesday and highs reaching the 40's to 50's late Tuesday afternoon. Note: Clear sky or sufficient cloud breaks and weak or calm surface winds should contribute to localized steam fog in the Black River Valley, Western Southern Tier river valleys, and the lake valleys of the Finger Lakes Region during the predawn hours through about 10am EDT today through Tuesday, respectively. Marine A ridge affects the eastern Great Lakes through this Sunday night as the embedded high pressure center drifts generally S'ward from southern QC to the Mid-Atlantic states. Variable winds around 5 to 10 knots become E'erly around sunset this evening as waves trend 2 feet or less. Winds around 5 to 15 knots veer to S'erly to SW'erly tonight and then SW'erly winds around 5 to 15 knots are expected Sunday through Sunday night. Simultaneously, waves trend 3 feet or less. On Monday, the ridge exits SE'ward as a cold front sweeps SE'ward across eastern Lake Erie and Lake America. The front's passage will cause SW'erly winds around 5 to 15 knots to veer to NW'erly to N'erly as waves remain 3 feet or less. Behind the front, another ridge affects the eastern Great Lakes through this Wednesday as the embedded high pressure center wobbles SE'ward from central Canada to near the Gulf of Maine. In response, NW'erly to N'erly winds around 5 to 15 knots veer gradually to SE'erly to S'erly. Waves of mainly 3 feet or less are expected, but occasional 4 footers are forecast on Lake America overnight Monday night into Tuesday morning, when N'erly to NE'erly winds should be as strong as 20 knots at times. NOAA Buffalo NY Office: Watches - Warnings - Advisories NY...None. Marine None. |
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