Marine Forecasts

    EDIT      (on/off)   Help

---

7 Day Forecast for Marine Location Near Bayfield, WI

   Hourly   EDIT   Help

---

Area Discussion for - Duluth, MN

      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS63 KDLH 061129 AFDDLH

Area Forecast Discussion National Weather Service Duluth MN 529 AM CST Fri Dec 6 2019

SHORT TERM. (Today through Saturday) Issued at 307 AM CST Fri Dec 6 2019

Temperatures trend colder today. Another clipper system moves through the Northland this afternoon and tonight and is expected to bring a round of light snow with accumulation generally up to 1 inch. Portions of Iron County, WI could see between 1 and 2 inches due to lake enhancement. Saturday trends warmer.

Northwest flow over the Northland this morning will usher in colder air for today. Temperatures for many locations have likely reached their highs for today. Temperatures will trend cooler through mid-morning and then rebound a bit for the afternoon. Daytime highs (excluding the readings during the pre-dawn hours) will reach the middle teens northeast to the low 20s in north- central Minnesota and portions of northwest Wisconsin. Another fast-moving clipper will pass over the Northland this afternoon and tonight. Forcing for ascent is weaker than Thursday’s clipper, and we expect lower snow totals. A swath of a dusting up to an inch of snow is expected over north-central Minnesota into the Arrowhead and portions of northwest Wisconsin. Areas in northern Ashland and Iron counties should see a little lake enhancement which will raise snow totals to between 1 and 2 inches. Winds turn westerly aloft which will usher in warmer air overnight and Saturday. Lows tonight will be in the upper single digits above zero to the middle teens. Highs on Saturday will reach the middle 20s to low 30s. Another weak clipper will cruise eastward across northern Ontario Saturday afternoon. There will be a slight chance of snow showers along the International Border as this system passes.

LONG TERM. (Saturday night through Thursday) Issued at 307 AM CST Fri Dec 6 2019

An upper level short wave pushes into western Minnesota Saturday night, with its associated surface low moving into northwest Ontario. Saturday evening should be fairly dry, except along the Borderland where the best forcing will be located from the approaching wave, and have some low pops. Due to the warm air already in place, a mix of freezing drizzle and snow is possible. As the surface low moves into Hudson Bay overnight, a cold front begins to move across the region. Model differences with the amount of QPF with this front, with the NAM way overdone, and has been ignored. Blending the GFS/GEM/ECMWF leads to chance pops along and east of Highway 53 in Minnesota and Wisconsin, with only minor amounts of QPF. Mixed precipitation types again ahead of the approaching cold front.

Sunday has the cold front moving through the area, with cold Arctic air behind it. Since the Arctic air is much drier, only have some low pops as it passes. Snow should be the main precipitation type. An upper level long wave trof follows behind Sunday night and signals the change to much below normal temps. Models are in better agreement then they were 24 hours ago. Have increased pops above the NBM Sunday night and Monday as it has pops that are unrepresentative as the trof moves into the western Great Lakes, and a surface low lifts northeast from the Central Plains Sunday night, into the eastern Great Lakes Monday. This adjustment led to higher QPF/Snow amounts as well. A general 1 to 3 inches will fall south of Minnesota 210, and south of US Highway 2 in Wisconsin. Some isolated higher amounts are possible.

The surface low continues off to the northeast Monday night. The cold Arctic air surges across the region as a closed upper low becomes established over Hudson Bay. This translates to a northwest surface flow, and lake effect snow will develop along the south shore of Lake Superior. Expect the snow showers to persist through Tuesday night, diminishing on Wednesday. Some accumulation will occur, but there are some differences amongst the models on exact wind direction, which affects the snow amounts. Much below normal temps, with overnight temps below zero Monday night, through Wednesday night. Wind chill values will be hazardous.

The aforementioned closed low begins to move east of Hudson Bay on Wednesday as high pressure drifts into the area. The flow aloft turns westerly on Thursday, with strong warm air advection, and the surface high drifts east. A fairly quiet weather pattern results.

AVIATION. (For the 12Z TAFS through 12Z Saturday morning) Issued at 529 AM CST Fri Dec 6 2019

High pressure will be over the terminals through the forecast. However, MVFR cigs affect all terminals at the start of the forecast as an upper level disturbance moves along the international border. A few snow showers or flurries will also be found this morning. Drier air from the high pressure will work to improve cigs to VFR, end the snow, and scattering out the clouds. The clouds work their way back across the terminals this afternoon through the end of the forecast. Cigs will drop into the MVFR range, with some areas of IFR cigs as another upper level disturbance affects the terminals.

MARINE. Issued at 307 AM CST Fri Dec 6 2019

A northwest wind of 10 to 15 knots this morning, will diminish in the afternoon before turning west. The wind becomes southwest tonight at 5 to 15 knots, and persists through Saturday night before turning west late. Waves will be less than 3 feet until Saturday night.

PRELIMINARY POINT TEMPS/POPS. DLH 18 12 29 25 / 10 30 10 30 INL 19 15 29 16 / 20 40 20 30 BRD 20 13 31 25 / 10 10 0 10 HYR 21 13 32 27 / 10 10 0 20 ASX 23 15 33 28 / 10 40 10 20

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

SHORT TERM . Huyck LONG TERM . GSF AVIATION . GSF MARINE . GSF

---

Weather Reporting Stations

   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map

Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
DISW3 - Devils Island, WI	16 mi	67 min	NW 15 G 19	21°F			1026.2 hPa (+2.1)	13°F
SXHW3 - Saxon Harbor, WI	30 mi	87 min	WNW 11 G 14	24°F			1024.7 hPa

Wind History for Duluth, MN

(wind in knots)    EDIT      (on/off)   Help

9 AM

10 AM

11 AM

12 PM

1 PM

2 PM

3 PM

4 PM

5 PM

6 PM

7 PM

8 PM

9 PM

10 PM

11 PM

12 AM

1 AM

2 AM

3 AM

4 AM

5 AM

6 AM

7 AM

8 AM

Last 24hr

SE5 G8

E4

E7 G10

E6 G12

E7 G12

E9 G12

NE11 G15

NE7 G11

NE4 G7

N8 G12

N3

NW3 G7

NW8 G15

NW11 G16

NW16 G23

NW6 G13

NW12 G21

W7 G15

S3 G7

NW5 G9

W4 G7

NW2 G8

W3 G8

N3 G7

1 day ago

SW8

W11 G20

NW15 G21

NW13 G27

W12 G23

W14 G22

W13 G20

W11 G15

W9 G12

SW7

SW8

SW5 G8

W4

SW4 G7

W4

NW8 G12

NW7

--

SW5

SW2

--

SW1

SW1

SE2

2 days ago

SW6 G9

SW5

SW7 G10

SW9

SW8

W10 G14

SW10

SW10 G13

SW7 G10

SW9

SW8

W11 G14

W10 G16

W12 G17

W16 G23

W17 G23

W17 G24

W16 G21

W10 G19

W10 G17

W6

W7 G14

W7 G15

SW5 G8

---

Airport Reports

    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.

Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
John F Kennedy Memorial Airport, WI	22 mi	74 min	W 10	10.00 mi	Overcast	19°F	12°F	77%	1027 hPa

Link to 5 minute data for KASX

Wind History from ASX (wind in knots)

10 AM

11 AM

12 PM

1 PM

2 PM

3 PM

4 PM

5 PM

6 PM

7 PM

8 PM

9 PM

10 PM

11 PM

12 AM

1 AM

2 AM

3 AM

4 AM

5 AM

6 AM

7 AM

8 AM

9 AM

Last 24hr

E5

NE4

NE6

NE6

NE4

NE7

E5

NE3

N6

NW6

NW5

Calm

W5

NW8

N10

NW10 G16

NW9

NW13

NW13

NW7

W12

NW5

W10

SW6

1 day ago

W8

W8

W9

W9 G18

W9

W6

W7

SW6

S4

W10 G16

SW4

W6

SW4

SW4

W5

NE5

NE3

NE4

Calm

NE4

E3

E4

NE5

E6

2 days ago

SW9

SW10

SW10

W11

SW10

SW11

SW10

W9

SW10

SW8

W8

SW8

W10

W8

SW8

SW6

W7

SW7

W6

W7

W9

W10

W8

W8

---

Tide / Current Tables for

   EDIT   Weekend mode (on/off)   (on/off)   Help

---

Tide / Current Tables for

   EDIT      (on/off)   Help

---

Weather Map

       (on/off)   Help Weather Map

---

GEOS Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East

---

Wind Forecast for Duluth, MN (10,2,3,4)

      (on/off)   Help

---

Ground Weather Radar Station Duluth, MN

   (on/off)   Help

---

Cookie Policy: This webiste uses cookies to save your settings. No personal information is saved. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser. Privacy Policy: I do not sell or share any user data or anything else for that matter. I do not keep site logs longer than I need to to keep bad actors off the site. Basically, I delete them after looking at them. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway. Disclaimer: The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.