Monday, July6, 2020
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Marine Weather and Tides
Ludington, MI

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:10AMSunset 9:29PM Monday July 6, 2020 3:48 AM EDT (07:48 UTC) Moonrise 10:03PMMoonset 6:24AM Illumination 99% Phase: Full Moon; Moon at 16 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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LMZ849 Pentwater To Manistee Mi- 1005 Pm Edt Sun Jul 5 2020
Rest of tonight..Southwest winds around 5 knots backing south toward daybreak. Mostly clear. Waves less than 1 foot.
Monday..Southwest winds 5 to 10 knots. Mostly Sunny. Waves 1 foot or less.
Monday night..Southwest winds 5 to 10 knots backing east late at night, then veering south toward daybreak. Partly cloudy with a slight chance of showers and Thunderstorms. Waves 1 foot or less.
Tuesday..Southwest winds 5 to 10 knots. Mostly Sunny with a slight chance of showers and Thunderstorms. Waves 1 foot or less.
Tuesday night..South winds 5 to 10 knots. Partly cloudy. Waves 1 foot or less.
Wednesday..Southwest winds 5 to 10 knots. Sunny. Waves 1 foot or less.
Thursday..Southwest winds 10 to 20 knots. Mostly Sunny. Waves 1 to 3 feet.
Friday..Northwest winds 5 to 15 knots. Mostly Sunny with a chance of showers and Thunderstorms. Waves around 1 foot.
LMZ849 Expires:202007060900;;385819 FZUS53 KGRR 060206 NSHGRR Nearshore Marine Forecast National Weather Service Grand Rapids MI 1005 PM EDT Sun Jul 5 2020 For waters within five nautical miles of shore on Lake Michigan LMZ849-060900-


7 Day Forecast for Marine Location Near Ludington, MI
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location: 43.96, -86.44     debug


Area Discussion for - Grand Rapids, MI
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FXUS63 KGRR 060717 AFDGRR

Area Forecast Discussion National Weather Service Grand Rapids MI 317 AM EDT Mon Jul 6 2020

LATEST UPDATE . Synopsis/Discussion/Marine

SYNOPSIS. Issued at 316 AM EDT Mon Jul 6 2020

There will be isolated thunderstorms this afternoon with a better chance of storms Tuesday afternoon and especially Thursday afternoon as a cold front moves in.

DISCUSSION. (Today through next Sunday) Issued at 316 AM EDT Mon Jul 6 2020

. Isolated storms this afternoon with a higher chance Tuesday .

Similar to the past couple days, flat upper ridging will persist today with only isolated showers and thunderstorms expected this afternoon as lake breeze boundaries could provide enough lift. Coverage of storms should be lower than past couple days with limited instability and moisture as forecast soundings look pretty dry.

A minor shortwave trough moves across the top of the subtropical ridge on Tuesday along with a weak surface front which will combine with the diurnal instability for some scattered showers and thunderstorms Tuesday afternoon with locally heavy rain rates possible.

. Increasing chance of rain Thursday .

Upper ridging on Wednesday will suppress convection but height falls occur late Thursday and Friday as a trough arrives. Some convection is expected along the cold front although the timing is uncertain and storms could linger into Friday.

. Cooler for the Weekend .

Temperatures will drop behind the front as upper troughing moves in on Saturday and persists through the weekend. The 500 mb pattern will feature a large upper high centered over the four corners area and ridging extending into western and central Canada with a downstream trough across the Great Lakes.

AVIATION. (For the 06Z TAFS through 06Z Monday night) Issued at 145 AM EDT Mon Jul 6 2020

Calm winds and clear skies are typically a recipe for fog/mist or low level cigs. Given, the dry low levels this is less likely. However, in regions that received precipitation today it remains possible. Overnight lows will be in the low to mid 60s. That is not low enough given dewpoint depressions for IFR. They should drop low enough for MVFR vsbys.

MARINE. Issued at 316 AM EDT Mon Jul 6 2020

Winds and waves will be relatively calm this week. There could be some thunderstorms with locally high wind gusts on Tuesday and Thursday afternoons.

GRR WATCHES/WARNINGS/ADVISORIES. MI . None. LM . None.

SYNOPSIS . Ostuno DISCUSSION . Ostuno AVIATION . Ceru MARINE . Ostuno


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LDTM4 - 9087023 - Ludington, MI 1 mi49 min E 2.9 G 5.1
BSBM4 - Big Sable Point, MI 8 mi69 min ESE 2.9 G 2.9 70°F 1016.3 hPa
MEEM4 - Manistee Harbor, MI 21 mi69 min SE 2.9 G 2.9 71°F 1016.9 hPa

Wind History for Ludington, MI
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ludington, Mason County Airport, MI2 mi54 minN 05.00 miFog/Mist62°F60°F96%1015.6 hPa
Manistee County - Blacker Airport, MI24 mi53 minN 05.00 miFog/Mist63°F63°F100%1014.8 hPa

Link to 5 minute data for KLDM

Wind History from LDM (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmSW4SW4SW5SW7W6W5SW7W5W4SW4SW4CalmCalmCalmE3CalmCalmCalm
1 day agoE3CalmCalmCalmCalmCalmCalmS3NW4NW7W8NW5NW4NW7NW7N4N3CalmCalmCalmCalmCalmCalmCalm
2 days agoCalmCalmCalmCalmCalmCalmCalmCalmNE7N6
G14
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NW8N7N8N9N7N5N3CalmCalmCalmCalmCalmCalm

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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wmap_A
GEOS Local Image of GreatLakes    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 Grand Rapids, MI (3,6,7,8)
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Ground Weather Radar Station Grand Rapids/Muskegon, MI
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weather_mapweather_map weather_map

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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 numerous 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.