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Marine Weather and Tides
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7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports. 6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen |
| Sunrise 6:24AM | Sunset 8:02PM | Monday August 26, 2019 3:09 AM CDT (08:09 UTC) | Moonrise 12:38AM | Moonset 4:38PM | Illumination 18% |  |
LSZ145 Expires:201908201330;;930312 Fzus73 Kdlh 201308 Mwsdlh Marine Weather Statement National Weather Service Duluth Mn 808 Am Cdt Tue Aug 20 2019 Lsz144>146-162-201330- 808 Am Cdt Tue Aug 20 2019
.a strong Thunderstorm over western lake superior... The areas affected include... Duluth mn to port wing wi... Lake superior west of a line from saxon harbor wi to grand portage mn beyond 5nm... Port wing to sand island wi... Two harbors to duluth mn... At 807 am cdt, doppler radar indicated a strong Thunderstorm, capable of producing winds to around 30 knots, small hail, and frequent cloud to water lightning. This strong Thunderstorm was located near french river, or 12 nm east of duluth lift bridge channel, moving east at 40 knots towards port wing. Locations impacted include... Brule point, herbster, and bayfield peninsula sea caves. Precautionary/preparedness actions... Mariners can expect wind gusts up to 33 knots...locally higher waves...cloud to water lightning strikes...small hail...and heavy downpours. Boaters should seek safe harbor until these storms pass. && lat...lon 4678 9191 4693 9187 4692 9095 4684 9110 4682 9118 4683 9121 4674 9150 4671 9163
.a strong Thunderstorm over western lake superior... The areas affected include... Duluth mn to port wing wi... Lake superior west of a line from saxon harbor wi to grand portage mn beyond 5nm... Port wing to sand island wi... Two harbors to duluth mn... At 807 am cdt, doppler radar indicated a strong Thunderstorm, capable of producing winds to around 30 knots, small hail, and frequent cloud to water lightning. This strong Thunderstorm was located near french river, or 12 nm east of duluth lift bridge channel, moving east at 40 knots towards port wing. Locations impacted include... Brule point, herbster, and bayfield peninsula sea caves. Precautionary/preparedness actions... Mariners can expect wind gusts up to 33 knots...locally higher waves...cloud to water lightning strikes...small hail...and heavy downpours. Boaters should seek safe harbor until these storms pass. && lat...lon 4678 9191 4693 9187 4692 9095 4684 9110 4682 9118 4683 9121 4674 9150 4671 9163
LSZ145
7 Day Forecast for Marine Location Near Finlayson, MN
Hourly EDIT Helplocation: 46.14, -93 debug
Area Discussion for - Duluth, MN
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus63 kdlh 260803 afddlh area forecast discussion national weather service duluth mn 303 am cdt Mon aug 26 2019 Short term (today through Tuesday) issued at 303 am cdt Mon aug 26 2019 an upper level long wave trof, and its associated surface low will affect the forecast area today. By afternoon, the upper wave will evolve into a cut off upper low, while the surface low meanders around central manitoba, before reaching northwest ontario by the late afternoon. Embedded pieces of energy will rotate through the area today, while a cold front slowly moves into the western tier of the forecast area by late afternoon. Rain will become more organized and affect all areas, from west to east, through the day. Only expecting isolated thunderstorms as the instability is weak. Beneficial rain will occur with amounts up to and around one inch today over the western two thirds of the region. Lower amounts over the arrowhead and north central wisconsin which will not see the efficient rainfall rates until afternoon. Flooding should not be an issue as the soils have been very dry, and the area of rain and storms will be progressing steadily across the region today. The circulation around the upper surface low tightens up as the system deepens tonight. Additional impulses will rotate across the area, while the cold front moves through the region. Isolated thunderstorms will be possible in the early evening with some marginal instability, which is lost with sunset. Best rainfall rates will occur over the eastern third of the region in the evening with around one inch in the arrowhead, and one half to near an inch for north central wisconsin. Lighter amounts overnight as a break from the embedded impulses occurs. The upper low and surface low become vertically stacked Tuesday over northwest ontario. Additional upper energy moves through the region, accompanied by cold air advection, with some of the coldest air since early spring. 850mb temps are forecast to drop into the 5 to 8c range. Some isolated thunderstorms are possible over the southern third of the area from late morning through the afternoon due to weak instability. Long term (Tuesday night through Sunday) issued at 303 am cdt Mon aug 26 2019 the upper trough will continue to slowly move through the region with the axis of the trough moving east of the northland Wednesday morning. Cool temperatures will be in place with 850mb values forecast to be from 4c to 6c 12z Wednesday. These cool temperatures combined with the upper low will keep showers in the forecast Tuesday night into Wednesday, although chances will diminish from southwest to northeast on Wednesday as ridging moves toward the region as the upper trough departs and warm advection develops. Highs Wednesday will only be in the upper fifties to mid sixties and gusty west northwest will make it feel even cooler. Another cold front will move through the region Thursday and the gfs and ECMWF are in better agreement tonight compared to their last few runs. The upper level support will remain near or north of the |
international border and we have low pops across northern minnesota for now and amounts should be light. A dry period is expected Thursday night through Saturday night as high pressure moves through the region. Highs Friday and Saturday will be in the sixties. A southward moving cold front late next weekend will bring chances for showers and thunderstorms to portions of the region but significant rainfall appears unlikely. Aviation (for the 06z tafs through 06z Monday night) issued at 1227 am cdt Mon aug 26 2019 widespreadVFR conditions late this evening will give way to MVFR ceilings overnight, and ifr ceilings after sunrise this morning through the day today. A cold front, which is currently draped over central north dakota, will slowly make its way into the northland late this morning, and continue tracking eastward, bringing showers and some embedded thunderstorms with it. While severe storms are not expected, some heavy rainfall will be possible, which should bring visibilities down into MVFR ifr. Winds will remain from the southeast today, which could be gusty at times. As the cold front passes through this afternoon and evening, winds will shift more westerly tonight. Marine Issued at 303 am cdt Mon aug 26 2019 winds are expected to back to east to southeast today and be from 10 to 15 knots as an area of low pressure and cold front move into minnesota. Waves will build along the north shore to 2 to 4 feet late today into this evening, mainly north and east of silver bay. Showers will become widespread with a few thunderstorms also possible. Low pressure will deepen as it moves through northwest ontario tonight into Tuesday morning. The wind will switch to west later tonight and increase into Tuesday and continue Wednesday. Sustained winds will be from 15 to 23 knots Tuesday into Wednesday with gusts of 25 to 35 knots. A gale watch warning may be needed for Tuesday into Wednesday for portions of western lake superior. Preliminary point temps pops Dlh 65 55 65 50 100 60 50 60 inl 65 54 61 47 100 70 80 80 brd 65 54 65 51 100 30 60 40 hyr 69 55 67 49 90 80 70 50 asx 72 56 70 50 90 100 40 50 Dlh watches warnings advisories Wi... None. Mn... None. Ls... None. Short term... Gsf long term... Melde aviation... Melde jts marine... Melde |
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 |
| DULM5 - 9099064 - Duluth, MN | 65 mi | 52 min | NE 4.1 G 6 | 65°F | 1011.9 hPa |
Wind History for Duluth, MN
(wind in knots) EDIT (on/off) Help| 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 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 | |
| Last 24hr | NW | SW | -- | -- | -- | S | S | S G6 | SE G13 | SE G11 | SE G12 | SE G11 | S G12 | SE G11 | S G17 | S G12 | S G11 | SE G7 | SE | S G7 | E | E | E | NE |
| 1 day ago | N | NE | NE G7 | NE G6 | N G6 | NE G9 | E | NE | NE | NE G6 | NE G7 | NE G9 | NE G12 | NE G11 | NE G10 | NE G9 | N | SE G11 | S G9 | S | W | E | N | SW |
| 2 days ago | N G5 | N | NE G6 | NE G8 | E G7 | E G7 | NE G8 | NE G9 | NE G13 | NE G12 | NE G15 | NE G13 | NE G17 | NE G17 | NE G17 | NE G9 | NE G8 | NE G9 | NE G11 | NE | NE | N G7 |
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 |
| Hinckley Field of Dreams Airport, MN | 10 mi | 71 min | SE 3 | 10.00 mi | Overcast | 61°F | 60°F | 100% | 1012.2 hPa |
| Moose Lake Carlton County Airport, MN | 22 mi | 2.5 hrs | N 0 | 10.00 mi | Light Rain | 61°F | 57°F | 88% | 1012.2 hPa |
Link to 5 minute data for K04W
Wind History from 04W (wind in knots)
| 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 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 | |
| Last 24hr | SE | SE | SE | SE | SE | SE | SE | S | SE G16 | SE G17 | S G16 | SE G14 | SE G15 | SE | SE | SE | SE | Calm | SE | SE | SE | SE | Calm | Calm |
| 1 day ago | Calm | Calm | Calm | Calm | Calm | Calm | SE | S | S | S | S | S G14 | SE | SE | SE | SE | SE | SE | E | Calm | Calm | Calm | Calm | Calm |
| 2 days ago | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | E | E | E | E | E | E | SE | E | Calm | Calm | Calm | Calm | Calm | Calm | Calm |
Tide / Current Tables for
EDIT Weekend mode (on/off) (on/off) HelpTide / Current Tables for
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GOES 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 (4,6,7,8)
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Ground Weather Radar Station Duluth, MN
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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. |