Thursday, September23, 2021
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Marine Weather and Tides
Lutsen, MN

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:55AMSunset 7:05PM Thursday September 23, 2021 6:36 PM CDT (23:36 UTC) Moonrise 7:21PMMoonset 8:33AM Illumination 93% Phase: Waning Gibbous; Moon at 17 days in cycle
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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LSZ141 Expires:202109170315;;742123 Fzus73 Kdlh 170227 Mwsdlh Marine Weather Statement National Weather Service Duluth Mn 927 Pm Cdt Thu Sep 16 2021 Lsz140-141-162-170315- 927 Pm Cdt Thu Sep 16 2021
.an area of Thunderstorms over western lake superior... The areas affected include... Grand marais to taconite harbor mn... Grand portage to grand marais mn... Lake superior west of a line from saxon harbor wi to grand portage mn beyond 5nm... At 926 pm cdt, doppler radar indicated an area of Thunderstorms, capable of producing winds to around 30 knots and frequent cloud to water lightning. This area of Thunderstorms was located along a line extending from 14 nm northeast of tofte safe harbor, to 17 nm east of tofte, moving northeast at 50 knots. Locations impacted include... Grand marais, hoveland and horseshoe bay and safe harbor, and grand portage. Precautionary/preparedness actions... Mariners can expect gusty winds up to 33 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until these storms pass. && lat...lon 4799 8941 4795 8943 4789 8954 4787 8963 4783 8966 4749 9052 4768 9066 4773 9054 4791 8982 4801 8966
LSZ141


7 Day Forecast for Marine Location Near Lutsen, MN
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location: 47.65, -90.96     debug


Area Discussion for - Duluth, MN
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FXUS63 KDLH 232333 AFDDLH

Area Forecast Discussion National Weather Service Duluth MN 633 PM CDT Thu Sep 23 2021

DISCUSSION. (This evening through Wednesday) Issued at 344 PM CDT Thu Sep 23 2021

Summary: Showers are expected Friday with some spotty showers possibly lingering into Saturday. Quiet weather is expected for the rest of the weekend and into next week with cooler temperatures Friday and Saturday, then warmer next week with highs in the low to mid 70s.

A somewhat compact upper level ridge overhead with surface high pressure has resulted in mostly sunny skies across the region today. Winds are a bit breezy in western areas due to a tighter pressure gradient, which exists due to a low level jet out ahead of a cold front over the Dakotas. Warm air advection will keep temperatures from dipping too low tonight, so frost is not expected to be an issue. There might be a sliver of a chance mainly in Price County in Wisconsin where the cooler air mass will linger the longest tonight, but even there the chance is low.

The aforementioned cold front over the Dakotas will slide east and pass through the Northland on Friday. A narrow wedge of moisture will advect in with the low level jet, bringing a chance of rain to a good portion of the region. Forcing for rainfall will be a combination of frontogenesis and cyclonic vorticity advection from an upper level short wave that will tighten as it passes through the region on Friday. Convective potential is low, though some diurnal heating could lead to some isolated rumbles of thunder across northwest Wisconsin Friday afternoon. With some lingering dry air at low levels and post-frontal dry air quickly filtering in behind the front, rain chances will be less on the Minnesota side and much better in northwest Wisconsin Friday afternoon where frontogenesis is expected to be strongest. In general, rainfall amounts will total to a few hundredths of an inch with a tenth of an inch or two in northwest Wisconsin. Any isolated areas that see convection in northwest Wisconsin could see some locally higher amounts.

Cold air advection will result in breezy northwest winds Friday afternoon and lingering into Saturday. Upper level ridging will to the west will gradually shift east through the weekend and into next week. A few weak embedded waves aloft could bring some isolated showers mainly to the Arrowhead Saturday, but otherwise dry and cooler weather is expected. As the upper ridge slides east next week, warmer air will advect into the region and bring dry weather with highs in the low to mid 70s. The next chances for rain are not expected until after Wednesday next week.

AVIATION. (For the 00Z TAFS through 00Z Friday evening) Issued at 632 PM CDT Thu Sep 23 2021

VFR conditions are expected through the TAF period. Any lingering breezy winds should decrease overnight. A cold front will pass Friday morning, and winds will switch from the south to northwest and become gusty. Skies will be cloudy with the passing cold front and some showers are possible but conditions should remain VFR.

MARINE. Issued at 344 PM CDT Thu Sep 23 2021

Light and variable winds are expected tonight, then becoming southwesterly Friday morning. A cold front will pass through Friday, bringing a chance for showers. In addition, winds will gradually become westerly to northwesterly through the day with breezy conditions expected. Wind gusts from 20 to 25 knots are possible Friday afternoon and evening with wave heights increasing to 2 to 4 feet along the Bayfield Peninsula and Apostle Islands. Small Craft Advisories may be needed. Winds may decrease a bit Friday night, but then increase a bit again Saturday. Conditions may be hazardous for small craft again Saturday afternoon and evening.

PRELIMINARY POINT TEMPS/POPS. DLH 48 61 42 61 / 20 40 10 10 INL 48 60 40 60 / 20 10 30 10 BRD 49 61 41 64 / 20 30 0 0 HYR 44 62 37 61 / 10 60 10 10 ASX 45 64 42 63 / 10 60 20 20

DLH WATCHES/WARNINGS/ADVISORIES. WI . None. MN . None. LS . None.

DISCUSSION . JDS AVIATION . Levens/LE MARINE . JDS


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SLVM5 - Silver Bay, MN 31 mi56 min NE 1.9 G 8.9 58°F 1014.6 hPa
KGNA 33 mi40 min Calm 59°F 1014.9 hPa51°F
GD5 - 9099090 - Grand Marais, MN 34 mi48 min 56°F1013.8 hPa
DISW3 - Devils Island, WI 41 mi36 min 61°F 1014.7 hPa (-1.5)54°F

Wind History for Duluth, MN
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Grand Marais/Cook County Airport, MN33 mi41 minN 010.00 miFair55°F50°F82%1014.9 hPa

Link to 5 minute data for KCKC

Wind History from CKC (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmS8CalmCalmS4CalmCalm
1 day agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmS4S4S3CalmS6CalmCalmCalm
2 days agoCalmN3NW8NW9
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NW5CalmNW3Calm

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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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