Saturday, September21, 2019 L-36.com


Marine Weather and Tides
Munising, MI

Version 3.4
NOTICE
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:33AMSunset 7:51PM Saturday September 21, 2019 12:45 AM EDT (04:45 UTC) Moonrise 11:02PMMoonset 1:59PM Illumination 55% Phase: Third Quarter Moon; Moon at 22 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 /o.con.kmqt.ma.w.0055.000000t0000z-190828t0215z/ 946 Pm Edt Tue Aug 27 2019
.a special marine warning remains in effect until 1015 pm edt... For the following areas... Grand marais to whitefish point 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 from grand marais mi to whitefish point mi 5nm off shore to the us/canadian border... Marquette to munising mi... Munising to grand marais mi... At 945 pm edt, strong Thunderstorms were located along a line extending from 7 nm northeast of the eastern lake superior buoy to 16 nm west of caribou island to near grand island, moving northeast at 40 knots. Hazard...wind gusts 34 knots or greater and small hail. Source...radar indicated. Impact...small craft could be damaged in briefly higher winds and suddenly higher waves. Locations impacted include... Miners castle, grand sable dunes and grand island. Precautionary/preparedness actions... Move to safe harbor until hazardous weather passes. && lat...lon 4719 8575 4663 8598 4662 8619 4653 8643 4640 8661 4640 8672 4643 8676 4723 8622 4751 8639 4751 8638 4725 8577 time...mot...loc 0145z 224deg 38kt 4768 8647 4725 8620 4648 8672 hail...<.75in wind...>34kts
LSZ249 Expires:201908280215;;900872 FZUS73 KMQT 280146 MWSMQT Marine Weather Statement National Weather Service Marquette MI 946 PM EDT Tue Aug 27 2019 LSZ249>251-266-267-280215-


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 210006
afdmqt
area forecast discussion
national weather service marquette mi
806 pm edt Fri sep 20 2019

Short term (this evening through Saturday)
issued at 257 pm edt Fri sep 20 2019
upper air pattern consists of a deep 500 mb trough in the western
half of the u.S. And rockies and a strong 500 mb ridge across the
east half of the u.S. The trough moves east into the plains tonight
and into the upper great lakes on sat. This will bring in a chance
of pcpn for Sat across the area. In the meantime, low levels will
remain moist and low clouds and fog will redevelop again tonight
along with humid weather lasting into sat. Overall, did not make too
many changes to the going forecast.

Long term (Saturday night through Friday)
issued at 334 pm edt Fri sep 20 2019
mid level troughing will be located over southern manitoba Saturday
evening with the sfc low centered just east of it near the ontario
border. Unidirectional southwesterly flow under a strengthening jet
nosing into the upper peninsula will remain breezy at the surface
Saturday night. Some theta-e advection driving showers and storms
northeastward should be moving out of the eastern up in the evening,
and behind it there will be little large scale forcing the rest of
the night. A slight chance for a few spotty showers will remain over
the west with slightly better chances east.

The sfc trough will race ahead of the upper levels Sunday, and the
cold front associated with this system should work across the area
during the day Sunday. It, too, is not expected to set off much in
terms of precipitation. The eastern up, however, may see some shower
activity during the day. In all, the forecast QPF is looking lower
with this system than the last few runs, with perhaps 0.25-0.5" over
the far east and mainly less than 0.2" elsewhere. As the upper
trough finally works across the area Sunday night into Monday
morning, a few additional showers may impact the east half of the
cwa. Otherwise, much cooler and more seasonal temperatures are
expected with highs in the 60s.

The next western CONUS trough looks to dig south and cut off over
the desert southwest, allowing for a more progressive northern
stream pattern through the middle of next week. Quick-moving ridging
should bring clearer skies and a cooler night Monday night, but also
a brief return to southwesterly flow and warmer temps during the
day. As quick as it moved in, however, this ridge will exit as a
trough digs out of canada into the upper great lakes. Showers and
thunderstorms will return to the forecast mainly late Tuesday night
and Wednesday, followed by another period of ridging for Thursday.

Temperatures will remain near normal through this period.

Late next week, deeper troughing will develop over the western
conus, and the aforementioned cut off low energy will likely eject
northeastward into our region for Friday leading to additional rain
chances. And, beyond the long term period, it appears wet and warm
weather will be favored to end the month of september.

Aviation (for the 00z tafs through 00z Saturday evening)
issued at 801 pm edt Fri sep 20 2019
light easterly winds will maintain upslope marine fog at kcmx through
this evening. Fog will also redevelop at ksaw this evening with
continued moist southerly low level flow. However, the increasing
south winds will provide enough mixing limit potential for dense fog
development. The south winds will also result in downsloping into
kiwd which will favor mainlyVFR conditions. Any fog should give way
to MVFR CIGS Saturday as moist southerly winds continue.

Marine (for the 4 pm lake superior forecast issuance)
issued at 257 pm edt Fri sep 20 2019
marine fog will continue to be a problem into Sat morning before the
wind picks up and starts to mix out the fog and will go with some
marine fog advisories on the east half of lake superior and the bay
of green bay and northern lake michigan zones. Otherwise, winds will
stay below 20 knots into Sat morning before picking up from the
south at 25 knots Sat evening and Sat night. Winds then get up to 30
knots out of the west southwest on Sun on lake superior. Stronger
winds to 25 knots return then again for wed.

Mqt watches warnings advisories
Upper michigan...

none.

Lake superior...

dense fog advisory until 9 am edt Saturday for lsz244>248-
264>267.

Lake michigan...

dense fog advisory until 9 am edt Saturday for lmz221-248-250.

Short term... 07
long term... Kcw
aviation... Jlb
marine... 07


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KP53 4 mi50 min S 4.1 62°F 1019 hPa61°F
MCGM4 - 9099018 - Marquette C.G., MI 37 mi46 min S 7 G 8.9 62°F 1017.8 hPa (-0.4)60°F
GR4 - Grand Marais, MI 44 mi66 min S 2.9 G 4.1 65°F 1020.3 hPa
GRIM4 44 mi56 min SSE 13 G 14 64°F 1018.4 hPa64°F
FPTM4 - Fairport, MI 53 mi66 min ESE 1.9 G 4.1 63°F 1019.6 hPa

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 mi1.8 hrsSSW 3 mi63°F61°F93%1019.2 hPa

Link to 5 minute data for KP53

Wind History from P53 (wind in knots)
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Last 24hrS5S6SW4SW3S53CalmS3CalmCalmCalmCalm4S6S55SW5SW3S4CalmCalmSW3S3S4
1 day agoS8
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S8--SW6SW8S3S6SE6S7S3S4S3CalmCalm
2 days agoS8S7
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Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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wmap_A
GEOS 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.
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Wind Forecast for Marquette, MI (0,6,7,8)
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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.