Thursday, May23, 2019 L-36.com


Marine Weather and Tides
South Haven, MI

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:12AMSunset 9:09PM Thursday May 23, 2019 11:13 AM EDT (15:13 UTC) Moonrise 12:00AMMoonset 9:19AM Illumination 79% 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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LMZ844 St Joseph To South Haven Mi- 1105 Am Edt Thu May 23 2019
Rest of today..West winds 10 to 20 knots. Sunny. Waves 1 to 3 feet.
Tonight..West winds 5 to 10 knots becoming light and variable. Mostly clear. Waves around 1 foot.
Friday..East winds around 10 knots veering southeast late in the day. Mostly cloudy with a slight chance of rain showers. Waves 1 foot or less.
Friday night..South winds 15 to 20 knots. Rain showers likely and a chance of Thunderstorms. Waves 1 to 2 feet.
Saturday..Southwest winds around 15 knots. Rain showers likely and a chance of Thunderstorms. Waves 1 to 3 feet.
Sunday..West winds around 10 knots veering north. Partly Sunny with a chance of rain showers. Waves 1 to 2 feet.
Memorial day..Southeast winds 10 to 15 knots. Mostly cloudy with a chance of rain showers. Waves around 1 foot.
LMZ844 Expires:201905232100;;332630 FZUS53 KGRR 231505 NSHGRR Nearshore Marine Forecast National Weather Service Grand Rapids MI 1105 AM EDT Thu May 23 2019 For waters within five nautical miles of shore on Lake Michigan LMZ844-232100-


7 Day Forecast for Marine Location Near South Haven city, MI
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location: 42.4, -86.27     debug


Area Discussion for - Grand Rapids, MI
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Fxus63 kgrr 231327
afdgrr
area forecast discussion
national weather service grand rapids mi
927 am edt Thu may 23 2019
latest update...

update marine

Synopsis
Issued at 315 am edt Thu may 23 2019
- showers and a few storms Friday afternoon Friday night
- predominantly dry weather for the memorial day holiday weekend

Update
Issued at 927 am edt Thu may 23 2019
drying and subsidence moving on with all precip ended and coastal
fog mixed out. Removed pops for this morning as well as fog near
lake michigan.

Discussion (today through next Wednesday)
issued at 315 am edt Thu may 23 2019
showers and scattered thunderstorms will continue to develop early
this morning along and out ahead of the approaching sfc cold
front. Pcpn will already be exiting our area by mid morning with
decreasing cloud cover and windy conditions developing late this
morning and afternoon. Wind gusts will stay below advisory criteria
but some gusts in the 30 to 40 mph are expected as deeper mixing
occurs later today. Relatively highest gusts should occur near to
mainly east of us-131.

Winds will subside this evening with dry wx overnight through
midday Friday. Some showers and isolated storms may develop as
early as Friday afternoon due to decent isentropic upglide north
of the warm front.

The better chance for rain and also some convection will come
Friday night near and out ahead of the cold front. Severe wx is
not expected. However some gusty storms seem possible mainly late
Friday night early Saturday morning given strong low level wind
fields and an increasing 45 to 55 kt LLJ aimed at our area.

After some lingering morning showers over our southern counties
early Saturday dry wx is expected for the vast majority of our
memorial day holiday weekend. Scattered showers may develop on
memorial day but medium range guidance guidance trends suggest
that most of the rain and convection will be focused north to nw
of our area.

Tuesday looks warm and humid and an increasingly warm and unstable
airmass out ahead of the next cold front could potentially set the
stage for some stronger convection by Tuesday afternoon Tuesday
night which could linger into Wednesday.

Aviation (for the 12z tafs through 12z Friday morning)
issued at 740 am edt Thu may 23 2019
showers departing to the east early this morning then turning
quicklyVFR. Stratus and dense fog at the lakeshore is leading to
lifr at mkg but that too should mix out later this morning with
vfr following.

The main aviation issue today will be the strong west winds which
will gust over 30 kts at times. Strongest gusts inland from lake
mi where deeper mixing expected. Winds diminishing tonight and
remainingVFR.

Marine
Issued at 927 am edt Thu may 23 2019
webcams and buoy observations show that the fog has dissipated
and waves winds have decreased, so the small craft advisory has
been cancelled.

Grr watches warnings advisories
Mi... None.

Lm... None.

Update... Ostuno
synopsis... Laurens
discussion... Laurens
aviation... Meade
marine... Ostuno


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SVNM4 - South Haven, MI 1 mi44 min SSW 9.9 G 12 52°F
45168 3 mi34 min SW 9.7 G 12 51°F 49°F2 ft1016 hPa46°F
SJOM4 - St. Joseph, MI 24 mi74 min SW 8.9 G 9.9 57°F 1016.3 hPa (+2.8)
HLNM4 - 9087031 - Holland, MI 26 mi62 min WSW 14 G 16 52°F 55°F1013.8 hPa48°F
45026 - St. Joseph, MI 34 mi34 min NW 7.8 G 7.8 54°F 52°F1 ft1016.5 hPa49°F
45029 35 mi34 min SW 9.7 G 12 47°F 46°F2 ft1014.8 hPa43°F
45007 - S MICHIGAN 43NM East Southeast of Milwaukee, WI 44 mi44 min SW 9.7 G 12 46°F 39°F1015.4 hPa44°F
MKGM4 - Muskegon, MI 57 mi34 min W 16 G 18 50°F 1014 hPa48°F

Wind History for Holland, MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
South Haven, South Haven Area Regional Airport, MI3 mi18 minW 10 G 1810.00 miFair65°F51°F61%1015.6 hPa
Southwest Michigan Regional Airport, MI20 mi21 minW 1410.00 miFair67°F54°F63%1015.8 hPa

Wind History from BEH (wind in knots)
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Last 24hrSE10S11
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1 day agoSE12SE12
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2 days agoNW10
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NW7NW7
G15
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6CalmCalmCalmCalmCalmCalmE3CalmCalmNE3E5SE5E4E14SE11E11
G19

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 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 (11,2,3,4)
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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.