Wednesday, January23, 2019 L-36.com


Marine Weather and Tides
Hart, 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 8:07AMSunset 5:46PM Wednesday January 23, 2019 7:17 AM EST (12:17 UTC) Moonrise 9:04PMMoonset 10:03AM Illumination 93% Phase: Waning Gibbous; Moon at 17 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
LMZ848 Whitehall To Pentwater Mi- 341 Am Est Wed Jan 23 2019
.small craft advisory in effect through late tonight...
Today..Northeast winds 15 to 25 knots backing northwest to 30 knots late in the day. Snow until midday, then snow and a slight chance of light freezing drizzle in the afternoon. Waves 2 to 3 feet building to 5 to 7 feet.
Tonight..Northwest winds 15 to 25 knots. Cloudy. A chance of snow showers and a slight chance of light freezing drizzle in the evening, then a chance of snow showers overnight. Waves 5 to 7 feet.
Thursday..West winds 15 to 25 knots veering northwest to 30 knots late in the day. A chance of snow showers until midday, then snow showers likely in the afternoon. Freezing spray through the day. Waves 4 to 6 feet building to 6 to 8 feet late in the day.
Thursday night..Northwest winds to 30 knots. Cloudy with a chance of snow showers. Heavy freezing spray. Waves 6 to 9 feet.
LMZ848 Expires:201901231615;;789906 FZUS53 KGRR 230841 NSHGRR Nearshore Marine Forecast National Weather Service Grand Rapids MI 341 AM EST Wed Jan 23 2019 For waters within five nautical miles of shore on Lake Michigan LMZ848-231615-


7 Day Forecast for Marine Location Near Hart, MI
   Hourly   EDIT   Help
location: 43.66, -86.53     debug


Area Discussion for - Grand Rapids, MI
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus63 kgrr 231157
afdgrr
area forecast discussion
national weather service grand rapids mi
657 am est Wed jan 23 2019
latest update...

aviation

Synopsis
Issued at 330 am est Wed jan 23 2019
-current winter weather event persisting today, mainly north of a
holland to alma line
-high impact lake effect event Thursday night and Friday due to
combination of bitter cold, wind, frequent whiteouts
-additional significant lake effect bitter cold over the weekend
-several inches of synoptic snow possible next Monday-Tuesday

Discussion (today through next Tuesday)
issued at 330 am est Wed jan 23 2019
frequent travel impacts are likely over the next week due to the
combination of persistent snow and cold.

Narrow band of heavy snow, fgen related, which had been
persisting the last few hours around grr and hastings to north of
lansing will diminish very soon as the back edge to the heavier
precip now moving across lk mi arrives. The morning commute could
be very tricky in this area as inch per hour snows have occurred
since midnight leaving roads snow covered slick.

The rain snow line, which stretches from south haven to lansing
at 3 am, looks to lift up to about a holland to alma line this
morning. Threat of travel impacts seems to have already diminished
along the i-94 corridor where temps have risen to the mid 30s
with rain, and the milder temps and switch to mostly rain should
lift another tier or two of counties north with time through the
morning, temporarily alleviating travel impacts.

More heavy precip rates arrive this morning as the main shortwave
now near kansas city lifts northeast. The main area of
accumulating snow after 12z is expected to shift farther north as
the sfc low tracks toward grr, with a 2 to 5 inch snowfall
expected north of a muskegon to mt pleasant line. The dry slot
sweeps in this afternoon, causing the snow to diminish to
drizzle freezing drizzle.

Colder air rushes in tonight behind the departing low, and areas
that have rain and briefly milder temps today will see things
freeze up again. The lake effect potential tonight does not look
particularly impressive due to low inversion heights around 4k ft.

Arrival of a potent arctic front and shortwave late Thursday will
usher in bitter cold and windy conditions with wind chills
falling well below zero by the time of the Friday morning commute.

The strong northwest winds behind the front will carry lake
effect snows well inland and the fine snowflake size will lead to
greatly reduced visibilities and icy road conditions. Total snow
accumulations will probably be held down since the dgz lowers to
near ground level in the cold air mass, but travel impacts will
undoubtedly be significant since road chemicals generally become
ineffective with single digit temps.

Lake effect looks to continue through most of the weekend,
becoming enhanced by another shortwave front on Saturday night
into Sunday. This starts as a southwest flow event then goes
northwest behind the next front. We are still looking at a
moderate potential for significant synoptic snows related to a
clipper system which tracks just south of mi on Monday-Tuesday.

Aviation (for the 12z tafs through 12z Thursday morning)
issued at 657 am est Wed jan 23 2019
widespread lifr conditions today in low stratus and rain drizzle,
although mainly snow is expected at mkg rather than rain. Slow
improvement toward MVFR expected tonight as system pulls away and
westerly wind shift brings in colder drier air. Scattered lake
effect snow showers later tonight producing mostly 3-5 mile vsbys,
although some ifr vsbys possible at times west of lan and jxn.

Marine
Issued at 330 am est Wed jan 23 2019
we will be leaving the small craft advisory as is with this forecast
package. Winds and waves will ramp up later today in the wake of the
system moving through today, and the cold air coming in behind it.

There will be a break in the winds and waves later tonight and early
Thursday. Another headline will be needed for late Thursday through
Friday as the arctic air surges in. Heavy freezing spray will also
become a factor due to the cold and wind wave action.

Hydrology
Issued at 312 pm est Tue jan 22 2019
significant amounts of ice have been formed on our rivers over the
last few days. No significant ice jams have formed, although
elevated water levels have been noted on parts of the flat river and
the looking glass river. No flooding has been reported. New ice
growth will be on hold until temperatures cool down again later this
week.

Attention now turns to the storm currently moving into the area. The
rain snow line is going to be very tricky with this storm. In
general, the kalamazoo basin and upper parts of the grand river
basin will see snow change to rain, with upwards of one-half inch of
rain possible by tomorrow morning. The muskegon basin and lower
parts of the grand river basin will see more (or all) snow
throughout this storm.

The modest snowpack already on the ground along and south of i96
will take a hit from the rain as well as above-freezing
temperatures, with runoff expected to reach the rivers in the next
few days. The good news in terms of the river water levels is that
the warm temperatures will be short-lived, and the existing snowpack
should help to absorb some of the rain so not all of the new rain is
expected to runoff into the streams. Sycamore creek, the maple
river, and the looking glass river are expected to rise to near
bankfull, but no significant overbank flooding is expected.

Grr watches warnings advisories
Mi... Winter weather advisory until 9 am est this morning for
miz056>059-064>067-071>074.

Winter weather advisory until 4 pm est this afternoon for
miz037>040-043>046-050>052.

Lm... Small craft advisory until 1 am est Thursday for lmz844>849.

Synopsis... Meade
discussion... Meade
aviation... Meade
hydrology... Ad
marine... Njj


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
LDTM4 - 9087023 - Ludington, MI 20 mi30 min ENE 2.9 G 5.1 25°F 21°F
BSBM4 - Big Sable Point, MI 27 mi38 min ENE 4.1 G 7 24°F 1010.2 hPa

Wind History for Ludington, MI
(wind in knots)    EDIT      (on/off)   Help
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
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
Last
24hr
SE7
G13
SE6
G12
SE7
G14
SE10
G14
SE8
G13
SE7
G12
SE7
G12
SE6
G13
SE8
SE8
G14
SE3
G8
SE4
G7
SE7
G12
SE4
G8
SE4
E2
E2
NE2
E3
E2
NE1
E3
G7
E5
NE3
G7
1 day
ago
E5
E5
E5
E7
E7
G11
E7
SE5
SE4
G7
S4
G8
S6
G9
S3
SE4
G7
SE2
SE6
G9
SE7
G11
SE5
G10
E9
G15
SE5
G9
SE7
G11
E8
G15
SE7
G11
SE9
G13
SE8
G12
SE13
G18
2 days
ago
E4
G7
E3
E4
E6
G10
E6
G9
E4
G9
NE4
G9
NE8
G13
NE10
G17
NE7
G14
NE7
G18
E5
G9
E5
G9
E5
G8
E5
G8
E4
E5
G8
E3
E3
G6
E5
E5
E5
E5
E5

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ludington, Mason County Airport, MI22 mi22 minN 07.00 miOvercast25°F22°F91%1009.1 hPa

Wind History from LDM (wind in knots)
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
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
Last 24hrSE9
G15
SE8SE9
G15
SE11
G16
SE9SE11
G15
S8SE9SE7
G14
SE9SE5SE5SE6S3S3CalmCalmCalmCalmCalmCalmCalmE3Calm
1 day agoCalmCalmCalmSE4SE5SE6CalmSE4S4S3S5SE3SE3SE4SE5SE4SE10
G15
SE9SE10
G14
SE8SE7SE7SE12SE13
G19
2 days agoCalmCalmE4E5E7E5N7NE9
G16
NE10
G16
NE8NE9
G17
NE5E5E4NE3CalmCalmCalmCalmE3CalmCalmCalmE3

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)   HelpWeather Map
wmap_A
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 (7,2,3,4)
      (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.