Thursday, December13, 2018 L-36.com


Marine Weather and Tides
Munising, 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 8:24AMSunset 5:04PM Thursday December 13, 2018 3:19 PM EST (20:19 UTC) Moonrise 12:38PMMoonset 11:06PM Illumination 37% Phase: Waxing Crescent; Moon at 6 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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LSZ249 556 pm edt Fri sep 28 2018 a marine weather statement has been issued for the following areas... Huron islands to marquette mi... Lake superior east of a line from manitou island to marquette mi and west of a line from grand marais mi to the us/canadian border beyond 5nm from shore... Lake superior west of line from manitou island to marquette mi beyond 5nm from shore... Marquette to munising mi... Munising to grand marais mi... At 555 pm edt, doppler radar indicated showers, capable of producing small graupel. These showers were located along a line extending from 10 nm south of stannard rock to 7 nm northeast of presque isle, moving east at 20 knots. Lat...lon 4646 8652 4647 8664 4641 8665 4645 8666 4644 8670 4648 8675 4648 8679 4643 8682 4644 8688 4649 8695 4651 8717 4649 8720 4649 8731 4653 8746 4701 8772 4713 8635 4655 8636
LSZ249 Expires:201809282245;;939967 FZUS73 KMQT 282156 MWSMQT Marine Weather Statement National Weather Service Marquette MI 556 PM EDT FRI SEP 28 2018 LSZ248>250-265-266-282245-


7 Day Forecast for Marine Location Near Munising, MI
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location: 46.38, -86.71     debug


Area Discussion for - Marquette, MI
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Fxus63 kmqt 131825
afdmqt
area forecast discussion
national weather service marquette mi
125 pm est Thu dec 13 2018

Short term (today and tonight)
issued at 336 am est Thu dec 13 2018
winds remained light overnight, initially with a southeast component
before becoming calm. This direction did lead to upslope across the
north central where patchy freezing drizzle developed late last
night. This patchy freezing drizzle has gradually dissipated;
however, areas of dense fog began to settle in behind. This area of
fog has been primarily impacting areas along the wisconsin michigan
border, along the shoreline the bay of green bay and then northward
into the north central portions of the upper peninsula. Due to these
ares of expanding fog and worsening visibilities, did opt to issue a
dense fog advisory for western and central upper michigan through
mid-morning. Given the areas of dense fog, freezing fog, and
lingering freezing drizzle untreated roads could be slick this
morning as well. Locations outside of those areas, mainly over the
keweenaw and out east, will likely see fog this morning, just not as
dense or impactful.

As we progress through the morning hours, patchy freezing drizzle
will continue to dissipate across the north central. However,
ongoing area of dense fog will continue to persist into mid late
morning across portions of western upper michigan near the
wisconsin michigan border and northward. Forecast soundings show
areas of fog lifting later this morning as boundary layer winds
increase. Winds will become southwest throughout the day today ahead
of an approaching cold front low pressure trough from the west. This
southwest flow will bump in warmer 850mb temperatures (approximately
5-8 degrees warmer than yesterday), so expect temperatures to be a
couple of degrees warmer today. Expect the clouds to hang on
throughout the day, especially across areas where dense fog is
ongoing this morning.

Late today through the overnight hours, the tail end of a weak cold
front will push eastward across the upper peninsula bringing a
chance for very light, widespread snow. With the deeper moisture
remaining well to our south, coupled with a quick moving frontal
passage, not expecting much in the way of accumulations with perhaps
up to 0.1-0.2'' in some spots. The band of light snow will move in
across western upper michigan late this evening, and track eastward
across central upper michigan around midnight, before exiting the
upper peninsula by early mid morning Friday. While snow
accumulations will be light at best, we could see a few slick spots
develop due to the dusting of snow for the morning commute on
Friday. Over the keweenaw peninsula, winds will become westerly with
gusts upwards of 25-30 mph after the front passes.

Long term (Friday through Wednesday)
issued at 231 am est Thu dec 13 2018
there will be a closed low over ERN tx and a ridge in the rockies
and a trough in the upper great lakes 12z fri. The closed low heads
slowly ene into the tennessee valley 12z Sat and into the
appalachians 12z Sun with another shortwave trough moving into the
upper great lakes. It will be quiet for this forecast period with
very little pcpn expected and temperatures staying above normal.

In the extended, the GFS and ECMWF show a 500 mb ridge in the
rockies and a trough across the upper great lakes and south central
canada 12z sun. This trough will push a sfc cold front through the
area on sun. The trough digs into the lower great lakes 12z mon
while the ridge moves into the plains. Upper troughing moves into
the western u.S. 12z Tue with a shortwave ridge continuing to remain
across the plains. Troughing then moves out into the plains 12z wed
and into the upper great lakes 12z thu. Will stay above normal for
temperatures. Looks like one brief shot of cooler air on Monday with
some lake effect snow showers then.

Aviation (for the 18z tafs through 18z Friday afternoon)
issued at 124 pm est Thu dec 13 2018
at kiwd and kcmx, mainly MVFR conditions are expected until after
the passage of a trough tonight, which will bring clearing
conditions. Will likely see snow along the trough, but looks to be
light.

At ksaw: low clouds are expected to stick around until after a
trough moves through tonight, then conditions quickly improve. There
could be flurries or maybe light snow showers along the trough, but
most likely will not see any snow.

Marine (for the 4 am lake superior forecast issuance)
issued at 336 am est Thu dec 13 2018
winds will become southwesterly across lake superior today and
increase to speeds between 25 to 30 knots. Winds will veer westerly
briefly tonight as a weak surface trough pushes east across the upper
great lakes. Later this afternoon through the overnight hours we
could see a few gale force gusts across the north central and
especially near the tip of the keweenaw peninsula. However,
confidence wasn't high enough that the gusts will remain persistent
in time and space, so no warning has been issued at this time.

Southwest winds return on Friday between 20 and 30 knots, gradually
relaxing to less than 20 knots late Friday into Saturday as high
pressure briefly takes over. Southwest winds return on Sunday and
ramp up quickly to between 20 and 30 knots, with the strongest winds
expected over western and north central portions of lake superior.

These stronger winds will persist through Monday as they veer
northwesterly behind another cold front passage. Sunday through
Monday are worth keeping an eye on for the potential for gales,
especially given the cooler shot of arctic air behind the cold front
late Sunday through Monday. Then, through the middle of next week
winds look to remain at or around 20 knots.

Mqt watches warnings advisories
Upper michigan...

none.

Lake superior...

none.

Lake michigan...

none.

Short term... Ritzman
long term... 07
aviation... Titus
marine... Ritzman


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KP53 4 mi24 min S 8 G 16 36°F 1016.7 hPa30°F
MCGM4 - 9099018 - Marquette C.G., MI 37 mi38 min SSW 5.1 G 13 35°F 1014.7 hPa28°F
GR4 - Grand Marais, MI 44 mi40 min S 13 G 17 37°F 1017.6 hPa
GRIM4 44 mi30 min SSW 17 G 19 36°F 1015.1 hPa31°F
FPTM4 - Fairport, MI 53 mi40 min WSW 8 G 9.9 35°F

Wind History for Marquette C.G., MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Munising - Munising Lakeshore Observation, MI4 mi24 minS 8 G 16 mi36°F30°F79%1016.7 hPa

Wind History from P53 (wind in knots)
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Last 24hrSE7S5SE5CalmCalmE3SE4SE7S6S4S3S3CalmCalm3SW3S3S4S4S6S10S5S7S8
G16
1 day agoNW12NW7NW8S3SW4S3SW3S4CalmS4S3S4CalmSE6SE6SE7--S5SE7S7
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2 days agoS7S11S8S8S10SW5SE5S4SE5S6W6CalmW5W9W5W8N12
G20
N11N8NW10NW7NW6NW7NW9

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.
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Wind Forecast for Marquette, MI (15,3,4,5)
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Ground Weather Radar Station Marquette, 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.