Monday, August19, 2019 L-36.com


Marine Weather and Tides
Delton, MI

Version 3.4
NOTICE
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 6:52AMSunset 8:39PM Monday August 19, 2019 12:36 PM EDT (16:36 UTC) Moonrise 9:54PMMoonset 9:37AM Illumination 83% Phase: Waning Gibbous; Moon at 19 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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LMZ845 South Haven To Holland Mi- 1105 Am Edt Mon Aug 19 2019
Rest of today..Northwest winds 5 to 10 knots. Sunny. Waves around 1 foot.
Tonight..Northeast winds 5 to 10 knots veering east after midnight. Partly cloudy. Waves 1 foot or less.
Tuesday..Southeast winds 5 to 10 knots veering southwest. Partly Sunny with a slight chance of rain showers. Waves less than 1 foot.
Tuesday night..Southwest winds 5 to 10 knots. Partly cloudy with a chance of rain showers. Waves 1 foot or less.
Wednesday..Northwest winds 10 to 20 knots. Partly Sunny. Waves 1 to 3 feet building to 2 to 4 feet.
Thursday..North winds 10 to 15 knots. Sunny. Waves 1 to 2 feet.
Friday..Northeast winds around 10 knots backing north. Sunny. Waves 1 foot or less.
LMZ845 Expires:201908192100;;470696 FZUS53 KGRR 191505 NSHGRR Nearshore Marine Forecast National Weather Service Grand Rapids MI 1105 AM EDT Mon Aug 19 2019 For waters within five nautical miles of shore on Lake Michigan LMZ845-192100-


7 Day Forecast for Marine Location Near Delton, MI
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location: 42.49, -85.43     debug


Area Discussion for - Grand Rapids, MI
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Fxus63 kgrr 191555
afdgrr
area forecast discussion
national weather service grand rapids mi
1155 am edt Mon aug 19 2019
latest update...

update

Synopsis
Issued at 310 am edt Mon aug 19 2019
- fair weather today and tonight
- showers and storms possible Tuesday afternoon and night
- cooler late in the week

Update
Issued at 1154 am edt Mon aug 19 2019
no major changes to the going forecast, but we are watching the
chances for some isolated storms in the southern forecast area
(south of i-96). A cumulus field has developed in this area with
some moderate looking cumulus along a line from near south haven
to mason. SPC mesoanalysis shows 500 j kg MUCAPE has crept into
the second row of counties from allegan over to ingham and 1000
j kg into the i-94 row. Rap soundings are showing MUCAPE values
increasing to near 1,500 j kg this afternoon. So, not out of the
realm of possibilities that we see some isolated showers and
storms develop along i-94 this afternoon and evening. We feel the
best chances will be towards south haven, kalamazoo and battle
creek. This is supported as well by the 12z href guidance. We do
not feel the chances are high at all, but think a slight chance
pop (20 pct) is warranted. Deep layer shear is rather weak so if
storms do develop we are not expecting severe weather. Otherwise,
expecting partly to mostly sunny skies and highs between 80 and
85.

Discussion (today through next Sunday)
issued at 310 am edt Mon aug 19 2019
a high pressure ridge will build in and bring fair wx today
through tonight with seasonable temps for this time of year.

Patchy fog early this morning will dissipate quickly during the
mid morning hours. An isolated shower is possible over our far
southern fcst area this aftn. An overall guidance consensus
favors areas further south SW of our area for pcpn later today.

Much of Tuesday should be dry but winds will become southwesterly
and advect a more humid airmass back into our fcst area. Scattered
rain showers and perhaps an isolated storm or two will develop
Tuesday afternoon as a fairly strong upper level disturbance moves
in from the west. The relatively best chc for pcpn will be over
our southern fcst area where relatively stronger instability is
fcst to develop.

A strong cold front will bring some showers and storms Tuesday
night. However the moderate to strong instability will stay
focused well to the south of our fcst area across il in oh and
that is where we believe the vast majority of convection will
develop. Severe wx is unlikely this far north and this notion is
in line with the day 2 convective outlook from spc.

It will become breezy after FROPA with wind gusts to around 25 kts
Wednesday afternoon. A cooler and drier airmass will advect in for
mid to late week with high temps wed-fri in the 70's and low temps
in the 50's (40's over our northern fcst area). A high pressure
ridge will bring fair wx late in the week into the weekend.

Aviation (for the 12z tafs through 12z Tuesday morning)
issued at 734 am edt Mon aug 19 2019
fog and vlifr conditions have developed over the jxn btl azo
terminals this morning, but should diminish in a hurry over the
next few hours. The bulk of the area will see light west winds
andVFR conditions throughout the day, with the best chance for
afternoon evening showers along the i-94 corridor. With no
significant change in the weather pattern today, some patchy fog
formation is again possible tonight. As with previous nights, the
best chance will be over azo btl jxn.

Marine
Issued at 310 am edt Mon aug 19 2019
fairly minimal wind speeds and wave heights are forecast through
Tuesday. Winds and wave heights will increase considerably
Wednesday after the passage of a strong cold front. A small craft
advisory will be needed Wednesday.

Grr watches warnings advisories
Mi... None.

Lm... None.

Update... Duke
synopsis... Laurens
discussion... Laurens
aviation... Amd
marine... Laurens


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
HLNM4 - 9087031 - Holland, MI 46 mi54 min SSW 6 G 7 73°F 1016.5 hPa70°F
SVNM4 - South Haven, MI 46 mi36 min WSW 4.1 G 4.1 74°F
45168 48 mi26 min SSW 1.9 G 3.9 75°F 75°F1 ft1017.1 hPa65°F
SJOM4 - St. Joseph, MI 63 mi36 min NNW 2.9 G 4.1 76°F 1017.6 hPa (+0.3)
MKGM4 - Muskegon, MI 70 mi36 min WSW 5.1 G 5.1 72°F 1016.5 hPa (+0.7)67°F

Wind History for Holland, MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
W K Kellogg Airport, MI16 mi43 minS 310.00 miMostly Cloudy78°F66°F67%1017.2 hPa
Kalamazoo/Battle Creek International Airport, MI18 mi43 minN 00.25 miOvercast with Haze78°F64°F64%1017.3 hPa

Link to 5 minute data for KBTL

Wind History from BTL (wind in knots)
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Last 24hrW9S9S13S12S17
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W6W10CalmCalmS3--SW4--S4----CalmCalmS3SW3S5--S3
1 day agoW6W8SW10S6S6S5S6S4S5S6SW4S6S5SW3SW3--CalmS6SE4SE4----SW12
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2 days agoSE4SW7S10
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--SW9--S8S7--S7S10--W9--SW3S4--SW5SW4W4--W4W6W3

Tide / Current Tables for
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Tide / Current Tables for
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Weather 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 Grand Rapids, MI (12,3,4,5)
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Ground Weather Radar Station Grand Rapids/Muskegon, MI
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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.