Superior, WI Marine Weather and Tide Forecast

Marine Weather and Tide Forecast for Superior, WI

February 20, 2024 5:13 PM CST (23:13 UTC) Change Location
Sunrise 7:02 AM   Sunset 5:41 PM
Moonrise 1:31 PM   Moonset 5:37 AM 
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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.

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Marine Forecasts
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LSZ145 / 535 Pm Cdt Thu Oct 5 2023

.the special marine warning is cancelled - .
the affected areas were - . Duluth mn to port wing wi - .
the showers have moved out of the warned area and no longer pose a significant threat to boaters.
lat - .lon 4676 9092 4687 9081 4690 9080 4693 9086 4692 9095 4684 9110 4682 9118 4683 9121 4674 9151 4686 9121 4708 9107 4710 9034 4687 9063 4673 9090 time - .mot - .loc 2234z 263deg 40kt 4703 9088 4691 9103 4677 9123

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7 Day Forecast for Marine Location Near Superior, WI
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Area Discussion for - Duluth, MN
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Area Forecast Discussion National Weather Service Duluth MN 441 PM CST Tue Feb 20 2024


- Above normal temps of 15-20 degrees will continue tomorrow into Thursday.

- A very brief return to colder, albeit closer to normal conditions, is forecast Friday and Saturday.

- The pattern of overall dry conditions will continue, however, there are signals (50-70% chance) for a potential quick moving precipitation system early next week.

Issued at 437 PM CST Tue Feb 20 2024

As noted on recent satellite imagery high and mid-level clouds are starting to increase into the area from the west. Thus, for this evening expect mostly cloudy conditions allowing temps to remain mild with overnight lows in the low to mid 20s. In fact, looking at climatology some of tonights lows are where our normal average highs should be this time of year.

For Wednesday, clouds look to remain locked up near the Canadian border, Iron Range, and into the Arrowhead regions.
Even with the clouds temperatures look to remain quite mild with highs in the upper 30s in the Arrowhead and Iron Range. Areas that see more sunshine will punch into the lower 40s including Duluth and the nearby lakeshore while mid-40s are forecast across northwestern WI with more plentiful sunshine. Thursday will feature plenty of sunshine and warm temperatures to start for most areas, in fact, the euro is hinting at temperatures close to 50 for areas south of Duluth which is in the 75th percentile of climatology. This is certainly possible as winds will be westerly, and the lack of snow cover will favor deeper mixing and more efficient heating. The GFS and Icon in comparison keep temperatures in the low 40s area wide with the lone exception of the Iron Range where temperatures are forecast in the middle 30s. I would not be surprised to see temperatures go on a run to even higher percentiles over NW WI if clouds stay to the north of the area. Later in the day clouds will be on the increase in the Iron Range and Arrowhead due to a weak system up in Canada. However, if clouds hold off longer temps could wind up being a bit warmer in these areas. Something to keep an eye on in future forecasts.

A brief shot of colder air (read normal) is progged to move into the forecast area with CAA starting Thursday night and lasting into Friday due to an incoming cold front. Friday morning temperatures shown by global models are in the teens along the Canadian border and Iron Range to the lower 20s elsewhere. We don’t rebound much during the day Friday due to this CAA, extensive cloud cover, and strong northerly winds, with temperatures struggling to get out of the teens in the north and 20s across the south. It definitely will feel like one of those raw, cold, normal winter days. Its also during this time that some areas could see very light lake effect snow showers for South Shore lake effect snow belts with strong NW flow over the nearly ice free Lake Superior. However, rather dry air will significantly limit the strength of these lake effect snow showers. Temperatures rebound nicely on Saturday with highs in the lower 40s in the south and 30s in the north and northwest WI. Much of the same though a tad warmer.

Heading into next week temperatures soar into the 50s on Monday with strengthening southerly flow ahead of deepening low pressure across southern Canada. This low is certainly a system to keep an eye on. However, the global models currently suggest this system to propagate quickly across the region with a lack of strong downstream ridging. So this is looking more like a clipper system with rain changing to snow, with strong winds behind the system. As we know this is still 7 days out so a lot can and will likely change. However, this winter has been anything but normal so those hoping for some snow may just be in luck and we should continue monitoring future forecasts for updates.

Issued at 437 PM CST Tue Feb 20 2024

VFR conditions prevail under light south-southeasterly winds this afternoon veering southwesterly this evening. A few snow showers creating flurries may pass along and north of the Iron Range tonight after 06Z and into Wednesday morning, affecting INL (20% chance) and HIB (10% chance).

Issued at 437 PM CST Tue Feb 20 2024

Easterly winds 10 to 15 knots today shift southwesterly tonight and increase again to 15 knots, but most locations are expected remain less than 2 foot wave heights. Westerly winds are likely to increase again to at or above Small Craft Advisory criteria again Thursday with an incoming cold front. Conditions hazardous to small craft may then last into Friday morning.


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
DULM5 - 9099064 - Duluth, MN 6 mi56 min NE 2.9G4.1 36°F 29.8629°F
PNGW3 - Port Wing, WI 34 mi34 min NNE 8.9G11 35°F 29.90

Wind History for Duluth, MN
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KDYT SKY HARBOR,MN 2 sm18 minE 0410 smClear34°F32°F93%29.90
KSUW RICHARD I BONG,WI 4 sm18 minE 0410 smClear36°F27°F69%29.91
KDLH DULUTH INTL,MN 13 sm18 minESE 0610 smClear34°F25°F69%29.87
Link to 5 minute data for KDYT

Wind History from DYT
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Tide / Current for
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Weather Map
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GEOS Local Image of Upper Mississippi Valley   

Duluth, MN,

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