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Marine Weather and Tides
Version 3.4 |
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 6:03AM | Sunset 7:42PM | Saturday August 24, 2019 8:26 PM CDT (01:26 UTC) | Moonrise 12:00AM | Moonset 3:00PM | Illumination 30% |  |
LMZ366 Expires:201908250330;;148590 Fzus63 Kmkx 241948 Glflm Open Lake Forecast For Lake Michigan National Weather Service Milwaukee/sullivan Wi 248 Pm Cdt Sat Aug 24 2019 For Waters Beyond Five Nautical Miles Of Shore On Lake Michigan. Waves Are Provided As A Range Of Significant Wave Heights, Which Is The Average Of The Highest 1/3 Of The Wave, Along With The Average Height Of The Highest 10% Of The Waves Which Will Occasionally Be Encountered.
Synopsis.. High pressure of 30.4 inches centered over southeast ontario will drift eastward into new england Sunday. As the back side of the ridge moves into the western great lakes region on Sunday, winds will become more southerly and gusty ahead of the next pair of low pressure systems that develop Sunday into Monday. The southern low of 29.5 inches will setup in texas with the northern low of 29.5 inches tracking across southern saskatchewan and manitoba Sunday into Monday. A cold front will extend south from the northern low and will meet up with the southern low on Monday. This front should clear lake michigan Monday night into Tuesday morning. A deeper and broader low pressure system of 29.2 inches will develop over western ontario late Tuesday into Wednesday, which will setup a period of windy conditions across lake michigan, particularly on the northern portion of it. Lmz261-362-364-366-563-565-567-868-250330- lake michigan from seul choix point to rock island passage 5 nm offshore to mid lake- lake michigan south of a line from seul choix point to the mackinac bridge and north of a line from charlevoix mi to south fox island 5 nm offshore- lake michigan from charlevoix to point betsie mi 5 nm offshore to mid lake- lake michigan from point betsie to manistee mi 5 nm offshore to mid lake- lake michigan from rock island passage to sturgeon bay wi- lake michigan from sturgeon bay to two rivers wi 5 nm offshore to mid lake- lake michigan from two rivers to sheboygan wi 5 nm offshore to mid lake- lake michigan from pentwater to manistee mi 5 nm offshore to mid lake- 248 pm cdt Sat aug 24 2019 sheboygan wi to pentwater mi north...
Tonight..Northeast winds 10 to 15 kt veering to southeast 10 to 20 kt. Waves 1 to 3 ft.
Sunday..Southeast winds 10 to 20 kt becoming east. Waves 2 to 4 ft.
Sunday night..East winds 15 to 25 kt becoming southeast 10 to 20 kt. Waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft.
Monday..Southeast winds 15 to 25 kt becoming south. Chance of showers and Thunderstorms in the afternoon. Waves 4 to 6 ft occasionally to 8 ft.
Monday night..South winds 15 to 25 kt becoming southwest. Chance of showers and Thunderstorms in the evening, then showers likely with a chance of Thunderstorms overnight. Waves 4 to 6 ft occasionally to 8 ft.
Tuesday..West winds 10 to 20 kt increasing to 15 to 25 kt. Chance of Thunderstorms in the morning. Waves 3 to 5 ft.
Tuesday night..West winds 10 to 20 kt increasing to 30 kt. Waves 3 to 5 ft.
Wednesday..West winds to 30 kt. Waves 4 to 7 ft occasionally to 9 ft.
Thursday..West winds 10 to 20 kt. Waves 2 to 4 ft.
Synopsis.. High pressure of 30.4 inches centered over southeast ontario will drift eastward into new england Sunday. As the back side of the ridge moves into the western great lakes region on Sunday, winds will become more southerly and gusty ahead of the next pair of low pressure systems that develop Sunday into Monday. The southern low of 29.5 inches will setup in texas with the northern low of 29.5 inches tracking across southern saskatchewan and manitoba Sunday into Monday. A cold front will extend south from the northern low and will meet up with the southern low on Monday. This front should clear lake michigan Monday night into Tuesday morning. A deeper and broader low pressure system of 29.2 inches will develop over western ontario late Tuesday into Wednesday, which will setup a period of windy conditions across lake michigan, particularly on the northern portion of it. Lmz261-362-364-366-563-565-567-868-250330- lake michigan from seul choix point to rock island passage 5 nm offshore to mid lake- lake michigan south of a line from seul choix point to the mackinac bridge and north of a line from charlevoix mi to south fox island 5 nm offshore- lake michigan from charlevoix to point betsie mi 5 nm offshore to mid lake- lake michigan from point betsie to manistee mi 5 nm offshore to mid lake- lake michigan from rock island passage to sturgeon bay wi- lake michigan from sturgeon bay to two rivers wi 5 nm offshore to mid lake- lake michigan from two rivers to sheboygan wi 5 nm offshore to mid lake- lake michigan from pentwater to manistee mi 5 nm offshore to mid lake- 248 pm cdt Sat aug 24 2019 sheboygan wi to pentwater mi north...
Tonight..Northeast winds 10 to 15 kt veering to southeast 10 to 20 kt. Waves 1 to 3 ft.
Sunday..Southeast winds 10 to 20 kt becoming east. Waves 2 to 4 ft.
Sunday night..East winds 15 to 25 kt becoming southeast 10 to 20 kt. Waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft.
Monday..Southeast winds 15 to 25 kt becoming south. Chance of showers and Thunderstorms in the afternoon. Waves 4 to 6 ft occasionally to 8 ft.
Monday night..South winds 15 to 25 kt becoming southwest. Chance of showers and Thunderstorms in the evening, then showers likely with a chance of Thunderstorms overnight. Waves 4 to 6 ft occasionally to 8 ft.
Tuesday..West winds 10 to 20 kt increasing to 15 to 25 kt. Chance of Thunderstorms in the morning. Waves 3 to 5 ft.
Tuesday night..West winds 10 to 20 kt increasing to 30 kt. Waves 3 to 5 ft.
Wednesday..West winds to 30 kt. Waves 4 to 7 ft occasionally to 9 ft.
Thursday..West winds 10 to 20 kt. Waves 2 to 4 ft.
LMZ366
7 Day Forecast for Marine Location Near Pilgrim, MI
Hourly EDIT Helplocation: 44.69, -86.75 debug
Area Discussion for - Green Bay, WI
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus63 kgrb 242312 afdgrb area forecast discussion national weather service green bay wi 612 pm cdt Sat aug 24 2019 updated aviation portion for 00z TAF issuance Synopsis Issued at 224 pm cdt Sat aug 24 2019 another quiet day tomorrow, then some showers and thunderstorms Monday into Monday night. Seasonably cool and mainly dry weather will settle into the area for the latter part of the work week. Slow progression of the large scale pattern is expected for the next few days. That will allow the upper ridge presently across the area to shift to the east coast, while an amplifying trough pushes east across the plains. The trough will slow mid-week as an upper low closes off over western ontario, then begin to lift toward northeast canada late in the week. The expected large scale pattern is probably more typical of early autumn than late summer. Though day-to-day temperature variations are expected, readings will generally be AOB normal. The main precipitation event will be tied to the passage of a frontal system through the area Monday and Monday night. While a widespread significant rainfall is likely during that time frame, only a few rounds of scattered light showers are expected during the rest of the period. The result will probably be near to slightly below normal amounts for most locations. Short term Tonight and Sunday issued at 224 pm cdt Sat aug 24 2019 the latest rap analysis and satellite radar imagery show high pressure centered over northern ontario but stretching across much of the western great lakes early this afternoon. Onshore winds and daytime heating have contributed to a widespread CU field across the region. Temperatures are running a degree or two warmer than yesterday. Looking upstream, the next system is moving slowly over the plains with a narrow moisture channel extending from the gulf coast to north dakota. Because of the strong high over the great lakes, this system will be slow to approach the area. So the main forecast concerns continue to revolve around clouds and temps for tonight and Sunday. Tonight... The center of the sprawling high pressure system will slowly shift east to the eastern great lakes, northeast ontario and quebec. The pressure gradient will tighten somewhat with wind trajectories remaining out of the southeast. 1000-850mb winds are projected to remain until 20 kts, which usually indicate surface winds will decouple. But with a little more wind in the boundary layer, lows should be a little warmer than last night, and range from the low 40s north to mid 50s over the southern fox valley. Clouds should dissipate with loss of heating early this evening. |
But a few clouds may also drift into northeast wi from off lake michigan late tonight. Sunday... High pressure will continue to slowly drift away from the region while the system over the plains moves into the mississippi valley. Trajectories out of the southeast will continue to provide a steady stream of dry air in the mid and lower levels. However, forecast soundings and the CU rule indicate should see ample fair weather clouds build again by late morning. Low level temps continue to warm, which should put highs in the low to middle 70s. Long term Sunday night through Saturday issued at 224 pm cdt Sat aug 24 2019 the main long-term forecast issue is honing in on the timing of precipitation with the frontal system crossing the area at the start of the work week. Overall, the 12z guidance trended slower with the arrival of the precipitation and with the timing of when the bulk of the rain will fall. Adjusted the forecast (pops and qpf) accordingly. The southwest portion of the forecast area was included in the marginal risk of severe weather on the morning spc swody3 product. The 12z guidance suite indicated limited destabilization will occur during the day, so at this point the risk of severe storms does not appear great. Deep westerly flow behind the front will support temperatures a little above normal on Tuesday, then readings will drop to below normal for a couple days as the large-scale upper trough settles over the region. Scattered light showers will also be possible at times, especially across the north. The default forecast initialization grids based on a broad-based blend of guidance products seemed reasonable, so no significant changes were necessary. Aviation For 00z TAF issuance issued at 612 pm cdt Sat aug 24 2019 scattered to broken fair weather clouds between 4-5 kft will dissipate shortly after sunset. Skies will become mostly clear this evening as the clouds dissipate. A few more lake clouds may drift inland along the lakeshore late tonight, before fair weather clouds become more widespread again by around 15z Sunday. Areas out to the west will become broken at times Sunday afternoon, with bases around 3500 ft. Grb watches warnings advisories None. Synopsis... ... .Skowronski short term... ..Mpc long term... ... Skowronski aviation... ... .Kurimski |
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 |
| MEEM4 - Manistee Harbor, MI | 37 mi | 46 min | N 11 G 13 | 66°F | 1025.1 hPa | |||
| KWNW3 - 9087069- Kewaunee, WI | 42 mi | 56 min | NE 1.9 G 5.1 | 65°F | 1024 hPa | |||
| NPDW3 - Northport Pier at Death's Door WI | 43 mi | 46 min | ENE 1.9 G 2.9 | 66°F | 1024.4 hPa | |||
| BSBM4 - Big Sable Point, MI | 46 mi | 46 min | N 8 G 11 | 65°F | 1025.1 hPa | |||
| 45002 - N MICHIGAN- Halfway between North Manitou and Washington Islands. | 49 mi | 46 min | NE 5.8 G 7.8 | 67°F | 71°F | 1025.5 hPa | 52°F |
Wind History for Kewaunee MET, WI
(wind in knots) EDIT (on/off) Help| 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 | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | |
| Last 24hr | NE G8 | NW | NW G4 | -- | -- | E G10 | E G11 | E | E G11 | E G15 | E G11 | SE G9 | SE | SE G10 | SE G11 | SE | SE | SE G11 | SE G10 | SE G7 | E G8 | E | -- | NE G5 |
| 1 day ago | E G5 | NE G5 | NW | NW G4 | NW | N G5 | N G8 | N G9 | N G7 | N G5 | -- | NW G6 | N G7 | NE G10 | NE G10 | NE G8 | NE G9 | NE G8 | E G10 | NE G9 | NE G9 | NE G6 | NE G10 | NE G7 |
| 2 days ago | N G7 | NW G8 | N G10 | N G12 | N G6 | N G8 | N G4 | NW | NW | W | -- | NW | NE G5 | NE G8 | NE G10 | NE G11 | NE G10 | NE G6 | NE G7 | NE G7 | E G8 | E G7 | NE G9 | E |
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 |
| Frankfort, Frankfort Dow Memorial Field Airport, MI | 29 mi | 71 min | NNE 3 | 10.00 mi | Fair | 69°F | 51°F | 54% | 1024.7 hPa |
Link to 5 minute data for KFKS
Wind History from FKS (wind in knots)
| 9 PM | 10 PM | 11 PM | -12 PM | 1 AM | 2 AM | 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 | |
| Last 24hr | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | E | Calm | Calm | W | W | N | NW | N | N | N | N | |||||
| 1 day ago | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | SE | NE | N | N | N | N | N | N G15 | N | N | N | N | |||
| 2 days ago | NE | N | N | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | NW | N | N | N | N | N G14 | NE | N G14 | NE | N | N |
Tide / Current Tables for
EDIT Weekend mode (on/off) (on/off) HelpTide / Current Tables for
EDIT (on/off) HelpWeather Map and Satellite Images
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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 Green Bay, WI (21,6,7,8)
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Ground Weather Radar Station Green Bay, WI
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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. |