Sunday, November19, 2017 L-36.com


Marine Weather and Tides
Grand Haven, MI

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
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.

Sunrise 7:42AMSunset 5:18PM Sunday November 19, 2017 4:37 PM EST (21:37 UTC) Moonrise 8:32AMMoonset 6:31PM Illumination 1% Phase: Waxing Crescent; Moon at 1 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
LMZ846 Holland To Grand Haven Mi- 315 Pm Est Sun Nov 19 2017
.small craft advisory in effect through Monday afternoon...
.gale watch in effect from Monday afternoon through Tuesday afternoon...
Tonight..West winds to 30 knots. Partly cloudy. Waves 6 to 8 feet.
Monday..Southwest winds to 30 knots increasing to gales to 35 knots late in the day. Sunny. Waves 6 to 9 feet.
Monday night..Southwest gales to 40 knots. Partly cloudy. Waves 9 to 13 feet.
Tuesday..West gales to 35 knots. Mostly cloudy with a chance of rain showers. Waves 8 to 12 feet.
LMZ846 Expires:201711200415;;660485 FZUS53 KGRR 192015 NSHGRR Nearshore Marine Forecast National Weather Service Grand Rapids MI 315 PM EST Sun Nov 19 2017 For waters within five nautical miles of shore on Lake Michigan LMZ846-200415-

7 Day Forecast for Marine Location Near Grand Haven, MI
   Hourly   EDIT   Help
location: 43.05, -86.36     debug


Area Discussion for - Grand Rapids, MI
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus63 kgrr 192013
afdgrr
area forecast discussion
national weather service grand rapids mi
315 pm est Sun nov 19 2017
latest update...

synopsis short term long term marine

Synopsis
Issued at 315 pm est Sun nov 19 2017
a high pressure ridge will build in and bring fair weather tonight
through Monday. However it will become breezy Monday through
Monday night out ahead of an approaching clipper system. The
clipper system will bring a few light rain showers Tuesday that
will change over to light snow showers and flurries late Tuesday
through Tuesday night. Tranquil weather will return for mid to
late week.

Short term (this evening through Tuesday night)
issued at 315 pm est Sun nov 19 2017
short term fcst concerns are fairly minimal with a rather tranquil
wx pattern developing for the upcoming week. Any lingering
flurries late this afternoon will taper off early this evening as
weak ridging builds in.

The ridge will bring fair wx late tonight through Monday night
but it will become very breezy Monday as strong SW winds develop
ahead of the approaching clipper system.

The clipper will bring a few light rain showers Tuesday followed
by light snow showers and flurries after FROPA as NW flow caa
occurs. Only a dusting of snow to no snow accumulation at all is
anticipated given low inversion heights and lack of deeper moisture.

Long term (Wednesday through Sunday)
issued at 315 pm est Sun nov 19 2017
a couple clippers move across southern canada in the extended with
the usual model timing differences in such a fast flow regime. The
only targets of opportunity aimed at were to add some light lake
enhanced snow showers Wednesday morning before the dgz dries out and
inversion heights crash below 5 kft agl... And to lower pops Friday
night as best lift and deeper moisture remain well north of lower
michigan, with only a period of light warm air advection precip
expected.

We have left Thursday dry for now but will have to watch a weak
clipper's trailing cold front moving through during the afternoon or
evening which could bring some light snow or mix to the northern
zones.

Aviation (for the 18z tafs through 18z Monday afternoon)
issued at 1241 pm est Sun nov 19 2017
a few areas of ceilings around 2500 feet with light snow showers
will persist until about 20z then move out withVFR conditions
prevailing tonight and Monday. Northwest winds will gust to 20
knots at times today. Winds will go southwest on Monday with some
gusts close to 20 knots.

Marine
Issued at 315 pm est Sun nov 19 2017
the small craft advisory remains in effect through mid afternoon
Monday. In addition a gale watch has been issued for late Monday
afternoon through late Tuesday afternoon as winds and waves will
ramp up out ahead of a clipper system Monday night and after the
clipper moves through Tuesday.

Hydrology
Issued at 1145 am est Sun nov 19 2017
numerous streams and rivers across the southern half of lower
michigan will continue to show the affects of Friday's and
Saturday's rainfall. Rises are expected through the weekend before
rivers stabilize next week.

A quieter pattern is forecast through the thanksgiving day
period. Given current forecasts and river trends, all sites should
remain below flood criteria. Impacts are expected to remain minor
and immediately along streams and rivers.

Grr watches warnings advisories
Mi... None.

Lm... Gale watch from Monday afternoon through Tuesday afternoon for
lmz844>849.

Small craft advisory until 4 pm est Monday for lmz844>849.

Synopsis... Laurens
short term... Laurens
long term... Ostuno
aviation... Ostuno
hydrology... Jam
marine... Laurens


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
MKGM4 - Muskegon, MI 12 mi38 min NW 19 G 21 32°F 1016.4 hPa (+0.6)22°F
HLNM4 - 9087031 - Holland, MI 21 mi50 min WNW 17 G 20 1014.9 hPa
45007 - S MICHIGAN 43NM East Southeast of Milwaukee, WI 44 mi48 min NW 16 G 19 33°F 49°F5 ft1016.1 hPa (-0.4)
SVNM4 - South Haven, MI 45 mi38 min W 14 G 18 33°F
LDTM4 - 9087023 - Ludington, MI 62 mi50 min WNW 6 G 9.9 29°F 15°F

Wind History for Holland, MI
(wind in knots)    EDIT      (on/off)   Help
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
2
PM
3
PM
4
PM
Last
24hr
N29
N22
G27
N23
G28
N28
G36
NW27
G36
N25
G35
NW32
NW27
NW28
G34
NW23
G30
NW22
G28
NW24
G29
NW21
G31
NW21
G29
NW22
NW20
G27
NW20
G27
NW22
G27
NW21
NW22
W20
G25
W19
G24
W21
NW17
G21
1 day
ago
SE11
G16
SE9
G15
E14
G20
SE10
G17
SE13
G18
SE13
G17
S15
G19
S20
S18
S15
G20
SW12
G15
SW12
G15
W10
NW14
G17
N10
N7
NE5
N10
N17
G21
N10
G14
N12
G15
N15
N16
G22
N12
G16
2 days
ago
N15
N5
NE6
N7
G11
N7
G10
NE9
NE6
NE8
G12
E8
E9
E7
G10
E9
E11
G15
SE6
G10
E6
G10
SE6
G9
SE4
G10
SE9
G14
SE8
G11
SE10
G14
SE6
G15
SE10
G15
SE9
G13
SE10
G17

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Muskegon, Muskegon County Airport, MI10 mi43 minWNW 12 G 1710.00 miMostly Cloudy31°F19°F61%1015.5 hPa

Wind History from MKG (wind in knots)
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
2
PM
3
PM
4
PM
Last 24hrN14
G19
N12N11NW15
G23
N15
G27
NW15
G24
NW14
G23
NW16
G22
N18
G25
NW12NW7NW15
G22
NW10
G16
NW13
G21
NW11NW13
G19
NW10
G21
NW10
G21
NW12
G23
NW14
G21
NW14
G19
NW12
G19
W10
G20
NW12
G17
1 day agoSE10SE10SE13SE10SE8SE3S6SW13SW13SW10W6W7NW6N8N8NE4NE3N5N9N12N9
G17
N8
G19
N7N14
G20
2 days agoNW7N6N6N3CalmE4E3E3SE4SE3SE4SE6E8SE9SE10SE9SE10SE9SE9SE12SE11
G17
SE16SE10SE11
G19

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 (16,3,4,5)
      (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.