Lake Ontario - Hamlin Beach to Sodus Bay including Irondequoit Bay Marine Forecast
| Rest Of Tonight...East Winds 5 To 10 Knots Becoming Southeast. Areas Of Freezing Drizzle With A Chance Of Snow Showers. Waves 2 Feet Or Less. |
| Sunday...Southeast Winds 5 To 10 Knots Becoming East. Snow. Waves 1 Foot Or Less. |
| Sunday Night...East Winds 5 To 15 Knots Becoming Northeast 15 To 20 Knots. Snow. Waves 1 To 3 Feet Building To 2 To 4 Feet. |
| Monday...North Winds 15 To 25 Knots. Snow. Waves 3 To 6 Feet. Waves Occasionally Around 7 Feet. |
| Monday Night...Northwest Winds 15 To 25 Knots. Snow. Waves 3 To 6 Feet Building To 4 To 7 Feet, Then Subsiding To 3 To 6 Feet. Waves Occasionally Around 9 Feet. |
| Tuesday...Northwest Winds 15 To 20 Knots Becoming Southeast 5 To 15 Knots. Snow Showers Likely During The Day, Then A Chance Of Snow Tuesday Night. Waves 3 To 6 Feet Subsiding To 1 To 3 Feet. Waves Occasionally Around 7 Feet. |
| Wednesday...South Winds 15 To 20 Knots Becoming West. Snow And Rain Likely During The Day, Then Rain And Snow Showers Likely Wednesday Night. Waves 1 To 3 Feet Building To 2 To 4 Feet. |
| Thursday...West Winds 15 To 20 Knots Becoming Northwest. A Chance Of Snow Showers, Rain Showers And Freezing Rain During The Day, Then A Chance Of Snow Showers Thursday Night. Waves 2 To 4 Feet Building To 3 To 5 Feet. Waves Occasionally Around 6 Feet. The Water Temperature Off Rochester Is 36 Degrees. |
| Area Forecast Discussion National Weather Service Buffalo NY 132am EST Sunday Feb 22 2026 .WHAT HAS CHANGED... A winter storm watch has been issued for Chautauqua County late this evening through late Monday night. .KEY MESSAGES... 1) Nor'easter to brush by our region today, with an axis of heavier snow across inland hills of WNY. 2) Lake enhanced snow becoming lake effect snow tonight through Tuesday. 3) The active pattern continues through next week with chances for rain and snow. KEY MESSAGE 1...Nor'easter to brush by our region today, with an axis of heavier snow across inland hills of WNY. A complex and impactful longwave pattern is emerging this morning as several shortwave troughs combine to form a longwave, negatively tilted trough over the east coast. From this, a surface low off the Carolinas this morning will deepen as it tracks northward...with a surface inverted trough extending northward into WNY. Light snow through the morning hours is expected to increase in coverage and intensity through the afternoon hours. Guidance packages are clustered into two separate groups, with various model runs extending the inverted surface trough and frontogentic forcing aloft across Cattaraugus/Wyoming counties, while other guidance brings the inverted trough northward across Allegany and into Livingston/Ontario counties. Where this trough eventually lies, and across the higher terrain we could see 4 to 5 inches of wet snow accumulate...especially across grassy surfaces. Hilltop roads, with marginal temperatures above freezing are likely to have much less snow accumulation. Across lower terrain and areas east of Lake Ontario snow accumulation is expected to be an inch or less through the evening hours. KEY MESSAGE 2...Lake enhanced snow becoming lake effect snow tonight through Tuesday. A much colder airmass will drop southward across our region later tonight and through Tuesday...this in response to the exiting nor' easter and an upstream 1050 mb surface high dropping down across the northern Plains. Initially 850 hPa temperatures will remain too warm for pure lake effect, starting Sunday evening around -7 to -8C. Cold air advection in the lower atmosphere will transition the lake enhanced/upslope snow over to pure lake effect through Monday...with colder temperatures Monday night allowing lake effect snow to become light and fluffy on a NNW flow. Primarily lake enhanced/upslope snow tonight through Monday...transitioning to lake effect snow with a possible upstream connection to Georgian Bay may yield over half a foot of snow on the Chautauqua Ridge. For which a winter storm watch has been issued for Chautauqua County. Snowfall is not expected to be as great for the Boston Hills. Additionally, areas along the southern Lake Ontario shoreline, especially Monroe County westward where frictional and land topography convergence will maximize snowfall along the shoreline will have day to day snowfall of several inches. As winds back and become more northwesterly lake effect snow will extend towards the southeastern Lake Ontario shoreline Monday night and into Tuesday. A ridge axis will cross the Eastern Great Lakes region Tuesday afternoon...with winds backing to southerly and warming in the mid levels ending lake instability for lake snows. KEY MESSAGE 3...The active pattern continues through next week with chances for rain and snow. Multiple frontal systems are expected to impact the eastern Great Lakes region through the end of the work week. An Alberta Clipper is expected to move across the Great Lakes region Wednesday and a period of widespread snow may result in minor accumulations. Low probabilities (20-40%) of 4" or more of snow in a 24 hour period are across the higher terrain Wednesday. A stronger frontal system is forecast to move across the Ohio Valley into the Northeast Thursday through Friday, however there remains considerable uncertainty. This could bring a period of rain and snow to the region. This later-week system will largely dictate how much of a warmup and overall rain or snow we see across the eastern Great Lakes. The advertised warm-up is becoming shorter and shorter with one day in the Long Term (Saturday) in the 40s. The pattern suggests temperatures falling back to near or below normal into next week. Marine Winds will remain light on the lower Great Lakes through this evening. A strong low will move northward off the east coast today through Monday. Northerly winds will increase on Lake Ontario late Sunday night through Monday, then become northwest Monday night through Tuesday, bringing the next round of Small Craft Advisory conditions. Please note...most, if not all of the Lake Erie nearshore waters continue to be ice covered. Waves have been omitted from the forecast. NOAA Buffalo NY Office: Watches - Warnings - Advisories NY...Winter Weather Advisory until 4am EST early this morning for NYZ001>006. Winter Storm Watch from this evening through late Monday night for NYZ019. Marine None. |