Lewiston, NY Marine Weather and Tide Forecast

Marine Weather and Tide Forecast for Lewiston, NY

December 4, 2023 3:20 PM EST (20:20 UTC)
Sunrise 7:30AM   Sunset 4:43PM   Moonrise  11:45PM   Moonset 12:51PM 

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Marine Forecasts
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LOZ030 Lower Niagara River- 931 Am Est Mon Dec 4 2023
Rest of today..West winds 10 to 15 knots. A chance of rain showers.
Tonight..Northwest winds 5 to 10 knots becoming west. Mostly cloudy.
Tuesday..West winds less than 10 knots becoming north. Mostly cloudy.
Tuesday night..Northeast winds 10 knots or less becoming north. Cloudy.
Wednesday..North winds 5 to 10 knots becoming southwest. A chance of light snow Wednesday night.
Thursday..Southwest winds 10 to 15 knots. A chance of rain and light snow during the day.
Friday..Southwest winds 10 to 15 knots. Mostly cloudy.

No data

7 Day Forecast for Marine Location Near Lewiston, NY
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Area Discussion for - Buffalo, NY
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Area Forecast Discussion National Weather Service Buffalo NY 232 PM EST Mon Dec 4 2023

Cooler weather with bring chances for rain and snow showers across the region today. The mix of rain and snow will transition to snow showers tonight. Light snowfall accumulations possible across the higher terrain today, especially east of Lake Ontario, with some minor accumulations possible east and southeast of the Lakes tonight. High pressure builds across the region Tuesday with just a few lingering light rain or snow showers southeast of the Lakes. A weak Clipper system will then pass by to our southwest later Tuesday into Tuesday night, possibly bringing some light snow to the western Southern Tier.

Surface analysis shows low pressure centered over northern Vermont early this afternoon. Cool, west-northwest flow is across the eastern Great Lakes region with temperatures in the upper 30s to low 40s, low to mid 30s on the higher terrain. Rain and snow showers will continue with lake enhancement/effect east of both Lakes. Snow showers are mainly confined to the higher terrain this afternoon.

A shortwave trough is moving across the region this afternoon. Cool, cyclonic flow will continue with weak cold air advection taking place. Temperatures at 850mb are cold enough (-5C Lk Erie and -8C Lk Ontario) for a lake response east of the Lakes. Additional moisture and support from the trough overhead will keep widespread rain and snow showers with lake enhancement through the rest of the afternoon. A wind shift to the northwest will move lake effect activity south this afternoon. Due to marginal boundary layer temperatures, rain is the main precipitation type with a mix or all snow on hill tops across western NY and on the Tug Hill. Snowfall amounts of 1-2 inches are possible with the higher end amounts on the Tug Hill.

The shortwave trough axis will move east of the region tonight.
Moisture will follow while high pressure builds into western NY.
Upslope and lake enhanced rain and snow showers will gradually diminish with snow showers lingering southeast of Lake Ontario by Tuesday morning. Any snow accumulation will be confined to the terrain where 1-2 inches is possible southeast of both Lakes. Low temperatures will fall to the upper 20s to low 30s.

A brief ridge of high pressure will move into the region Tuesday.
Drier conditions are expected with any lingering snow showers confined southeast of Lake Ontario. A cool, west-northwest flow will continue to support low clouds through most of the day. A fast moving clipper system will move from the Mid-West to the Mid- Atlantic region Tuesday. Moisture will increase from the southwest and further increase cloud cover from southwest to northeast across the region by Tuesday afternoon. A period of weak warm air advection aloft may bring a period of rain and snow showers to southwest NY by Tuesday afternoon. The parent upper level trough will move overhead Tuesday night. Cold air advection will strengthen and added moisture will result in a period of lake effect snow showers, mainly south of Lake Ontario and southeast of Lake Erie. Chilly Tuesday night with lows in the 20s.

Wednesday morning, though shortwave trough will be shifting to the south and east of NY state, somewhat deep moisture tied to the wave and N/NNW low-level flow with H85 temps of -10c will be more than sufficient to produce snow showers south of Lake Ontario and southeast of Lake Erie. A couple inches of snow will occur along the Chautauqua Ridge and also south of Lake Ontario toward the Finger Lakes late Tuesday night into Wednesday morning. The snow showers may linger well into the afternoon across the Finger Lakes in scattered fashion as an additional shortwave drops across Lake Ontario. Coolest day of the week otherwise with highs remaining below freezing higher terrain and only into the mid 30s at lower elevations. High pressure ridge crosses on Wednesday night though height rises aloft are much more modest. Shot below guidance for temps especially east of Lake Ontario with ridge lingering longer.

Upstream shortwave and a warm front dropping east-southeast across the Great Lakes will then begin to spread some light snow into far western NY late Wednesday night with lift further helped along by mid-level warm air advection and divergence aloft from 120+ kt upper jet. Swath of light snow spreads steadily west to east on Thursday morning. Near sfc temps in the low to mid 30s will be marginal for seeing much accumulation, but ptype for majority of the time should stay just snow. Lingering light snow east of Lake Ontario Thursday night but most areas will become dry as the warm front lifts through. Warm front will be felt with return to above normal temps Thursday night, especially far western NY where readings only drop into the mid 30s.

On Friday, warm front will mainly have lifted northeast of our area while deeper sfc low resides near Lake Superior. Heights aloft will rebound sharply. All-in-all, SW flow to the south of the warm front will result in a breezy day for much of the forecast area. SW flow will keep warming northeast of the lakes tempered, but expect many locations western NY to the Finger Lakes to reach the upper 40s to around 50 while it remains in the low to mid 40s east of Lake Ontario.

This first sfc low will lift to Hudson Bay on Saturday dragging a weak cold front across the Ottawa Valley. Next southern stream shortwave trough will be digging over the southern Plains with sfc low spinning up vcnty of lower Mississippi River valley. Warm front extends northeast of this low and could bring some rain showers to western NYS. Otherwise, have trended pops lower farther east as upper ridge holds precipitation to the west most of Saturday.
Likely more clouds than Friday, but warm air advection will solely push temps well above normal into the 50s for all but inland locations east of Lake Ontario.

Later into the weekend, there is general agreement that the southern stream trough and its associated deepening sfc low will lift across the Ohio Valley and Great Lakes Sunday/Sunday Night into Monday.
The agreement is only generalized at this point though as there are differences in main primary guidance suites, including in their individual run-to-run consistency. Ensembles from the ECMWF/GFS and Canadian are starting to mostly agree with their operational counterparts, though the operational GFS still looks too progressive once working into Monday with main sfc low compared to the GEFS members/mean. Though there are still bigger differences, the overall theme/highlights of the pattern are there. Swath of rain moves through later in the weekend ahead of the low along with gusty southerly winds. Once the low shifts north (again there are timing differences), models/ensembles show a good signal that high winds would be a concern (just the NBM mean right now is already showing advisory level winds/gusts for much of the area) which makes sense with the cold air advection taking place in wake of the system and the tight pressure gradient that will be there with the dynamic system moving through. Rain likely will switch over to mainly snow by that point with lake enhanced/lake effect snow to follow early in the week as temps cool back below normal.

Even though the details at this point admittedly are far from locked in, stay tuned as we get closer to the time frame in question as there is at least a potential this system could produce impactful winds and winter weather for our region.

Prevailing MVFR flight conditions are expected across western and north central NY through Tuesday morning. Lower ceilings may produce periods of IFR are possible across the higher terrain. Scattered rain and snow showers with embedded lake effect bands will continue across the region this afternoon. Rain will mix with snow across the higher terrain with all snow on the Tug Hill. A mix of rain and snow will move into KJHW this afternoon and lower visibility is possible into this evening.

Rain and snow showers will diminish across the region tonight, however snow showers will likely linger southeast of Lake Ontario into Tuesday morning. Rain and snow showers will mainly stay between TAF sites with the exception of widely scattered snow showers near KJHW Tuesday morning.


Tuesday afternoon...Areas of MVFR in mixed rain/wet snow showers.
Wednesday and Thursday...VFR/MVFR with a chance of rain and snow showers.
Friday...VFR/MVFR. A small chance of rain and snow showers.
Saturday...Mainly VFR.

Winds over the lower Great Lakes will remain elevated through today, with SCAs remaining in place through this evening into the first half of tonight for the Lake Erie and Lake Ontario nearshore marine zones. Wind gusts will reach 30 knots on both Lakes, with a few gusts to Gale force possible today.

High pressure over central Quebec this evening will then gradually ridge south across the lower Great Lakes later tonight and Tuesday.
This will allow winds and waves to subside to well below SCA thresholds by early Tuesday morning.

MARINE...Small Craft Advisory until 4 PM EST this afternoon for LEZ040- 041.
Small Craft Advisory until 10 PM EST this evening for LOZ042-043-045.
Small Craft Advisory until 1 AM EST Tuesday for LOZ044.

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
YGNN6 - Niagara Coast Guard , NY 13 mi80 min WNW 12G15 38°F 29.80
NIAN6 - 9063012 - Niagara Intake, NY 17 mi50 min 38°F 29.78
BUFN6 - 9063020 - Buffalo, NY 30 mi50 min WSW 8.9G11 39°F 43°F29.8033°F
OLCN6 - Olcott Harbor, NY 32 mi80 min WNW 14G16 37°F 29.82
PSTN6 - 9063028 - Sturgeon Point, NY 37 mi50 min 39°F 29.81
DBLN6 - Dunkirk, NY 48 mi80 min WNW 19G21 41°F 29.80

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Wind History for Buffalo, NY
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
CYSN ST CATHARINES/NIAGARA DISTRICT,CN 6 sm20 minNNW 0715 smOvercast37°F32°F81%29.82
KIAG NIAGARA FALLS INTL,NY 19 sm20 minNW 1010 smOvercast39°F30°F70%29.81

Wind History from IAG
(wind in knots)

Tide / Current for
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Weather Map
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GEOS Local Image of GreatLakes   

Buffalo, NY,

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