Monday, May22, 2017 L-36.com


Marine Weather and Tides
Saugatuck, MI

Version 3.4
What's New / NOTES
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:12AMSunset 9:09PM Monday May 22, 2017 1:36 PM EDT (17:36 UTC) Moonrise 3:33AMMoonset 4:22PM Illumination 9% Phase: Waning Crescent; Moon at 27 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
    EDIT      (on/off)   Help
LMZ874 Lake Michigan From Michigan City In To St. Joseph Mi 5 Nm Offshore To Mid Lake- Lake Michigan From Two Rivers To Sheboygan Wi 5 Nm Offshore To Mid Lake- Lake Michigan From Sheboygan To Port Washington Wi 5 Nm Offshore To Mid Lake- Lake Michigan From Port Washington To North Point Light Wi 5 Nm Offshore To Mid Lake- Lake Michigan From North Point Light To Wind Point Wi 5 Nm Offshore To Mid Lake- Lake Michigan From Wind Point Wi To Winthrop Harbor Il 5 Nm Offshore To Mid Lake- Lake Michigan From Winthrop Harbor To Wilmette Harbor Il 5 Nm Offshore To Mid Lake- Lake Michigan From Wilmette Harbor Il To Michigan City In 5 Nm Offshore To Mid Lake- Lake Michigan From Pentwater To Manistee Mi 5 Nm Offshore To Mid Lake- Lake Michigan From Whitehall To Pentwater Mi 5 Nm Offshore To Mid Lake- Lake Michigan From Grand Haven To Whitehall Mi 5 Nm Offshore To Mid Lake- Lake Michigan From Holland To Grand Haven Mi 5 Nm Offshore To Mid Lake- Lake Michigan From South Haven To Holland Mi 5 Nm Offshore To Mid Lake- Lake Michigan From St. Joseph To South Haven Mi 5 Nm Offshore To Mid Lake- 839 Am Cdt Mon May 22 2017 Two Rivers Wi To Manistee Mi South...
Rest of today..Southwest winds 10 to 20 kt becoming south 15 to 25 kt. Slight chance of showers this afternoon. Waves 3 to 5 ft occasionally to 7 ft.
Tonight..Southwest winds 15 to 20 kt diminishing to 10 to 15 kt. Scattered showers and slight chance of Thunderstorms in the evening...then scattered showers overnight. Waves 3 to 5 ft occasionally to 7 ft subsiding to 1 to 3 ft.
Tuesday..South winds 10 to 15 kt backing to east. Scattered showers. Waves 1 to 3 ft subsiding to 1 to 2 ft.
Tuesday night..Northeast winds 10 to 20 kt. Scattered showers. Waves 1 to 3 ft.
Wednesday..Northeast winds 10 to 20 kt becoming north 15 to 25 kt. Scattered rain showers in the morning...then chance of rain in the afternoon. Waves 3 to 5 ft occasionally to 7 ft.
Wednesday night..Northeast winds 15 to 25 kt becoming north. Chance of rain. Waves 3 to 5 ft occasionally to 7 ft.
Thursday..North winds 15 to 25 kt diminishing to 10 to 20 kt. Waves 3 to 5 ft occasionally to 7 ft.
Friday..Southeast winds 5 to 10 kt increasing to 10 to 15 kt. Waves 1 to 2 ft.
LMZ874 Expires:201705222130;;027739 FZUS63 KLOT 221339 GLFLM OPEN LAKE FORECAST FOR LAKE MICHIGAN NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 839 AM CDT MON MAY 22 2017 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...LOW PRESSURE OF 29.7 INCHES OVER ONTARIO WILL MOVE TO WESTERN QUEBEC BY THIS EVENING. A COLD FRONT TRAILING FROM THIS LOW WILL CROSS NORTHERN LAKE MICHIGAN THIS EVENING. ANOTHER WEAK LOW AROUND 29.8 INCHES WILL FORM OVER THE UPPER MISSISSIPPI VALLEY THIS EVENING AND MEANDER ACROSS THE WESTERN AND CENTRAL GREAT LAKES THROUGH MID WEEK WHILE SLOWLY DEEPENING. WEAK HIGH PRESSURE RIDGING AROUND 29.9 INCHES WILL BE OVER THE GREAT LAKES ON FRIDAY. LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-222130-

7 Day Forecast for Marine Location Near Saugatuck, MI
   Hourly   EDIT   Help
location: 42.84, -86.63     debug


Area Discussion for - Grand Rapids, MI
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus63 kgrr 221725
afdgrr
area forecast discussion
national weather service grand rapids mi
125 pm edt Mon may 22 2017
latest update...

hydro

Synopsis
Issued at 325 am edt Mon may 22 2017
for the most part expect periods of showers and slightly cooler
than normal temperatures this week into memorial day weekend.

Today through we may actually see a little sunshine from late
this morning into early this evening before the clouds and showers
move in from the next storm system. That storm is rotating around
the larger departing storm. Meanwhile a more significant storm
develops on the stalled front over the ohio valley by Tuesday
evening and rotates northward toward michigan on Wednesday. If the
storm gets this far north it could be very wet here during the
afternoon and evening. That system will be slow to move out so
expect scattered showers into Thursday before another brief dry
period moves in on Friday. Then another system may bring showers
with it during next weekend.

Short term (today through Wednesday)
issued at 325 am edt Mon may 22 2017
we are watching to features, the sunshine for this afternoon and
the storm that may impact our area on Wednesday. This one could be
a real soaker of it gets far enough north.

We may actually see some sunshine this afternoon! That is the
result of surface ridging between the departing occluded front
and the in coming developing surface low (currently over
minnesota). There will be low to mid level warm advection ahead of
that system today so that warming should clear the clouds out by
late morning. It will not last through as a shortwave rotating
around the larger departing storm develops a surface low that
moves into our area tonight and stalls over our area Tuesday.

It stalls over our area thanks to a 100 knot plus jet core
currently digging southward over the western plains on the back
side of the large upper trough over the central united states. As
that digging jet gets closer to the surface front it forms a
surface low over kentucky early Wednesday morning that gets
captured by the developing upper low over SE iowa by mid morning
Wednesday. That puts michigan in deep southerly flow from 850 mb
through 250 mb. That in effect drives that new surface low north
toward michigan. The only real question is just how far north it
gets (models are not in total agreement on just how far north and
west that storm will go). Still there is enough agreement to go
with likely pops over our southern cwa. All of the models and most
of the ensembles of the those models as well as previous runs of
those models show the rain getting to at least i-96 by late
afternoon Wednesday.

There is enough mid level instability (surface based on tue) so
that a few thunderstorms are possible both tonight into Tuesday
night. The system coming up from the south may bring enough
instability with it for more thunderstorms south of i-96
Wednesday.

Long term (Wednesday night through Sunday)
issued at 325 am edt Mon may 22 2017
good agreement continues in the models showing a stacked low over
the lower great lakes Wed night. Deep moisture lingers over the
region, so i've raised pops. However conditions look better as we
work through the latter portion of the work week. By Thursday the
low should be moving into the eastern lakes, and the showers should
not be as prevalent across SW mi.

Upper ridging gradually moves in by Friday night. This feature may
not completely clear the region out, because a short wave attempts
to break down the ridge. So after a mainly dry Thursday night and
Friday, we could see hit and miss showers Friday night and into the
start of the memorial day weekend as the upper wave slides through.

At this point the best chance for scattered showers seems to be
south of i-96 with some residual moisture lingering. Many areas may
stay dry, depending on how strong the upper ridge is able to be.

There is some timing differences by Sunday, but it appears the ridge
slides off to the east, leading to a better chance of rain by then.

Again the ridge's trends will need to be monitor. But if trends
continue the eastward movement of the ridge, it would allow a cold
front to push into the western great lakes by Saturday night,
increasing the chance for rain by Sunday.

Temperature-wise we will stay cool through the work week with the
low in the vicinity, but warmer air, closer to normal, will arrive
just in time for the holiday weekend, when temps should push into
the 70s.

Aviation (for the 12z tafs through 12z Tuesday morning)
issued at 628 am edt Mon may 22 2017
while skies are cloudy with most locations north of i-94 having
MVFR cigs, the back edge of the clouds is currently near chi
(1030z). This clearing area will reach us-131 by 15z and clear
i-69 by 16z. This will leave the afternoon as clear or nearly
clear but with gusty winds from the southwest (25 knots).

Tonight a system rotating this way from mn/wi will bring showers
and MVFR CIGS to the i-96 TAF sites but in this case it seems the
i-94 TAF sites just getVFR CIGS and that would be about it
overnight.

Marine
Issued at 325 am edt Mon may 22 2017
at this point I plan on leaving our marine headlines as is. It
woulds seem to me winds will be lighter tonight into Wednesday.

Hydrology
Issued at 125 pm edt Mon may 22 2017
river systems in southern lower michigan are running above normal,
while river levels in central lower michigan are around normal.

Tonight through Thursday, unsettled weather will bring up to an inch
of rain. This should keep levels elevated, but not expecting
flooding to result. The following forecast is based on observed and
forecast 24 hour precipitation.

Grr watches/warnings/advisories
Mi... None.

Lm... Small craft advisory until 10 pm edt this evening for lmz844>849.

Synopsis... Wdm
short term... Wdm
long term... Jk
aviation... Wdm
hydrology... 63
marine... Wdm


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
45029 19 mi37 min SW 14 G 18 49°F 50°F4 ft1016.3 hPa (-0.3)44°F
HLNM4 - 9087031 - Holland, MI 23 mi61 min SSW 17 G 19 51°F
45007 - S MICHIGAN 43NM East Southeast of Milwaukee, WI 24 mi107 min SW 12 G 14 47°F 44°F2 ft1015.9 hPa (-0.4)44°F
45161 28 mi57 min SSW 16 G 18 48°F 50°F3 ft1015.2 hPa
MKGM4 - Muskegon, MI 31 mi47 min SW 18 G 20 50°F 1015.8 hPa46°F
45168 34 mi47 min SW 14 G 18 53°F 52°F4 ft1017 hPa44°F
SVNM4 - South Haven, MI 35 mi57 min SSW 15 G 16 53°F

Wind History for Holland, MI
(wind in knots)    EDIT      (on/off)   Help
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
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
Last
24hr
S11
S9
SW15
SW13
SW11
SW13
G16
W13
W16
G20
SW19
SW15
G19
SW17
SW17
G22
SW16
SW18
G22
SW18
SW19
SW19
G23
SW17
G21
SW17
G21
SW17
G21
SW20
SW18
SW16
S17
1 day
ago
E12
G16
E18
G25
E17
G23
E21
G29
E16
G23
E14
G18
E12
G19
E16
G23
E17
G21
E16
G20
E17
E11
G15
E13
G17
E15
E14
G17
E7
G11
E8
G11
SE3
G6
E6
G10
S14
S8
SW8
S10
S10
2 days
ago
NE15
G21
NE14
G18
NE6
G10
NE8
G11
NE12
G18
NE9
G14
NE8
G13
NE10
G13
NE11
G15
NE13
G19
NE9
G12
NE10
G15
NE9
G18
NE11
G15
E12
G18
E14
G18
E15
G21
E14
G18
E10
G18
E9
G16
E12
G17
E14
G23
E18
G24
E17
G22

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Holland - West Michigan Regional Airport, MI29 mi44 minWSW 19 G 2410.00 miFair and Breezy59°F44°F58%1016.1 hPa

Wind History from BIV (wind in knots)
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
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
Last 24hrSW15
G22
W18
G22
W17
G24
W17
G27
W14
G24
W13W11W12W13
G23
W13W16
G21
W14
G21
W13W17
G22
W14
G22
W15
G22
SW15
G21
W14W17
G24
W17
G22
W18
G27
W17
G24
W16SW19
G24
1 day agoE7E16
G21
E15
G26
E13
G27
E14
G22
E11SE10E11E13E10E12E8E9E7E7E7SE6CalmS6S6W12
G19
W10W9W12
2 days agoE14
G20
E12
G19
NE7
G15
NE6E11
G22
E8E7E11E9E10E10
G19
E12E10E11
G19
E10
G17
E9E10E11E11
G18
E9E12E16
G23
E16
G22
E16
G23

Tide / Current Tables for
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of GreatLakes    EDIT
Geos

Wind Forecast for Grand Rapids, MI (13,3,4,5)
      (on/off)   Help

Ground Weather Radar Station Grand Rapids/Muskegon, MI
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.