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Marine Weather and Tide Forecast for Alexandria Bay, NY

April 26, 2025 12:31 AM EDT (04:31 UTC)
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Sunrise 5:58 AM   Sunset 8:02 PM
Moonrise 4:11 AM   Moonset 5:57 PM 
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NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

Marine Forecasts
   
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NOTE: Zones were updated 3/20/2025
SLZ022 Saint Lawrence River From Cape Vincent To Ogdensburg- 1001 Am Edt Fri Apr 25 2025

This afternoon - Northeast winds 5 to 10 knots. A chance of showers.

Tonight - Northeast winds 10 knots or less becoming east. A chance of showers early, then occasional showers with a chance of Thunderstorms from late evening on.

Saturday - Northeast winds 10 knots or less becoming west. Showers with a chance of Thunderstorms in the morning, then showers in the afternoon.

Saturday night - West winds 10 to 15 knots becoming northwest. Showers likely.

Sunday - Northwest winds 10 to 15 knots becoming light and variable. Rain showers likely during the day.

Monday - Southwest winds 5 to 10 knots becoming south. Mainly clear, then becoming partly cloudy.

Tuesday - South winds 10 to 15 knots becoming west. Showers.
winds and waves higher in and near Thunderstorms.
SLZ005
No data

7 Day Forecast for Marine Location Near Alexandria Bay, NY
   
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Area Discussion for Buffalo, NY
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FXUS61 KBUF 252342 AFDBUF

Area Forecast Discussion National Weather Service Buffalo NY 742 PM EDT Fri Apr 25 2025

SYNOPSIS
Low pressure consolidating over Lower Michigan this evening will pass over our region overnight...producing widespread showers and possibly a few thunderstorms in the process. The shower activity will taper off from west to east on Saturday...as the area of low pressure will exit across New England
Unfortunately
unsettled conditions will persist east of Lake Ontario through at least Saturday night. High pressure over the Upper Great Lakes on Sunday will provide a wealth of sunshine over the western counties with gradual improvement further east.

NEAR TERM /THROUGH SATURDAY NIGHT/
There will be a brief lull in the shower activity this evening behind the initial wave of showers. A second more robust shortwave will then push a consolidating area of low pressure from Lower Michigan across our forecast. This will support a second round of fairly widespread showers and possible thunderstorms over our region
especially across the western Southern Tier
Finger Lakes and Eastern Lake Ontario regions where a quarter to a half inch of rain could fall. While this will result in a noticeable rise in area tributaries...no issues are anticipated on the larger streams/rivers.

Strong shortwave energy rounding the base of a digging trough over southern Ontario will 'capture' the sfc low over the St Lawrence valley and slow its exit to the east. While the bulk of the mid level energy will be stripped away over our region in the process...
significant hgt falls and a wealth of leftover low level moisture will retard the dissipation of the morning showers
In fact
showers will persist through the day into Saturday night for areas east of Lake Ontario.

Temperatures on Saturday will be a solid 10 to 15 degrees lower than those from today (Fri)...as highs in most areas will only be in the mid to upper 50s.

SHORT TERM /SUNDAY THROUGH MONDAY NIGHT/
A slower departure of a mid level trough Sunday will linger rain showers, perhaps mixed with wet snowflakes, east of Lake Ontario through the morning, before drier air and improving conditions from the west advances eastward. Clear skies and light winds Sunday night with passage of a surface ridge will allow for temperatures to drop towards freezing east of Lake Ontario.

Mainly clear starlit skies will be in place Sunday night...as high pressure will cross the region. Milder and dry Monday and Monday night on the backside of the surface high.

LONG TERM /TUESDAY THROUGH FRIDAY/
An active day is becoming more likely for Tuesday as deep southerly flow ushers in a moisture rich airmass and instability that coupled with a strong LLJ will bring favorable conditions for at least locally strong thunderstorms.

Still a little timing uncertainty among the model guidance, mainly as to how much sunshine/ rain showers will be around in the morning hours. Siding with the NBM as well as the 12Z Canadian and 12Z ECMWF much of Tuesday morning should be dry before storms erupt during the afternoon and evening hours. PWAT values rising to over an inch along with daytime temperatures in the mid 70s to mid 80s will create SBCAPE values over 1K J/KG. A strengthening LLJ to 50-55 knots running parallel to the cold front will favor linear structures to thunderstorms, while increasing CAPE in the mid levels will also favor the formation of hail in stronger storms.

Afternoon and evening timing on the storms within a prefrontal trough, with a breezy westerly to northwesterly wind through Wednesday behind the passage of a cold front Tuesday night.

Mainly dry conditions Wednesday through at least Thursday morning, though a secondary cold front may clip the North Country with a few showers Wednesday. Returning moisture ahead of the mid level trough will return unsettled weather Thursday afternoon through Friday.

AVIATION /00Z SATURDAY THROUGH WEDNESDAY/
A brief lull behind the initial wave of showers will support mainly VFR cigs this evening
After that
the next round of showers, possibly with a few embedded rumbles of thunder will arrive tonight. VFR cigs will deteriorate overnight to MVFR then eventually to IFR to LIFR levels.

Most areas will experience MVFR cigs on Saturday.

Outlook...

Sunday...VFR, but morning MVFR cigs and scattered showers east of Lake Ontario.
Monday...VFR.
Tuesday...VFR with afternoon showers and thunderstorms.
Wednesday...VFR.

MARINE
Low pressure will move from the central Great Lakes to just north of the lower Great Lakes tonight through early Saturday. East winds will increase today on Lake Ontario ahead of this system with choppy conditions developing.

Conditions approaching Small Craft Advisory are more likely Saturday through Saturday night behind the cold front, especially on Lake Ontario.

BUF WATCHES/WARNINGS/ADVISORIES
NY...None.
MARINE...None.


Weather Reporting Stations
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Stations Dist Age Wind AirWater WavesinHgDewPt
ALXN6 - 8311062 - Alexandria Bay, NY 4 mi44 min 43°F29.87
CAVN6 30 mi44 minNNE 1G1.9 43°F29.88
OBGN6 - 8311030 - Ogdensburg, NY 31 mi44 min 29.91
OSGN6 - 9052030 - Oswego, NY 71 mi44 minSE 5.1G7 29.83


Wind History for Oswego, NY
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Airport Reports
   
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AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KGTB WHEELERSACK AAF,NY 22 sm36 minSE 0910 smOvercast59°F54°F82%29.86

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GEOS Local Image of Northeast  
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Montague, NY,





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