Wednesday, May24, 2017 L-36.com


Marine Weather and Tides
Munising, MI

Version 3.4
What's New / NOTES
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 6:03AMSunset 9:29PM Wednesday May 24, 2017 11:16 PM EDT (03:16 UTC) Moonrise 4:40AMMoonset 6:58PM Illumination 0% Phase: New Moon; Moon at 29 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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This is a Weather Statement Zone, please check the Date to see if it has expired
LSZ249 1203 am edt Wed may 17 2017 a marine weather statement has been issued for the following areas... Eagle river to manitou island mi... Grand marais to whitefish point mi... 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... Lake superior from grand marais mi to whitefish point mi 5nm off shore to the us/canadian border... Lake superior from upper entrance to portage canal to manitou island mi 5nm off shore to the us/canadian border... Manitou island to point isabelle mi... Marquette to munising mi... Munising to grand marais mi... Point isabelle to lower entrance of portage canal mi... Portage lake to huron island mi to lower entrance of portage canal to huron islands mi including keweenaw and huron bays... At 1203 am edt...doppler radar indicated strong Thunderstorms... Capable of producing winds to around 30 knots and small hail. These Thunderstorms were located along a line extending from near brockway mountain to 9 nm northeast of the huron islands...moving east at 50 knots. Precautionary/preparedness actions... Mariners can expect gusty winds to around 30 knots...locally higher waves...and lightning strikes. Boaters should seek safe harbor immediately until these storms pass. && lat...lon 4732 8595 4663 8589 4663 8615 4648 8649 4649 8743 4681 8772 4686 8798 4775 8812 4796 8751
This is a Weather Statement Zone, please check the Date to see if it has expired
LSZ249 Expires:201705170530;;742019 FZUS73 KMQT 170403 MWSMQT MARINE WEATHER STATEMENT NATIONAL WEATHER SERVICE MARQUETTE MI 1203 AM EDT WED MAY 17 2017 LSZ244>251-264>267-170530-

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 242340
afdmqt
area forecast discussion
national weather service marquette mi
740 pm edt Wed may 24 2017

Short term (this evening through Thursday)
issued at 325 pm edt Wed may 24 2017
no major weather impacts expected through the short-term portion of
the forecast.

Tonight through Thursday: no major changes in the forecast through
this time period. Upper-level troughing across much of the great
lakes will slowly sag to the south through this time period as a
surface low remains nearly stationary over much of the ohio river
valley. The main impact that this will have on the u.P. Weather will
be continue wrap-around moisture sliding across mainly the eastern
half of the area through tonight and early Thursday. The west half
will likely see clouds begin to slowly break tonight into Thursday
as drier high pressure begins to very slowly slide into the western
u.P., especially aloft. This may result in some fog development
overnight, depending largly on how quickly the cloud cover
diminishes. Dewpoints are expected to remain in the upper 30s to
near 40, which should keep enough moisture near the surface for at
least some fog potential. As the moisture axis slides farther east
during the day Thursday, the Sun may actually break out for the
afternoon hours with the drier air moving in with the high pressure
system. If that does happen, temperatures will quickly warm into the
upper 60s to around 70 over the west half as 850mb temperatures are
progged to be around 10c. The east half may be a bit cooler with a
little more lingering moisture, thanks to a quick moving shortwave
sliding just east of that area.

Long term (Thursday night through Wednesday)
issued at 325 pm edt Wed may 24 2017
although there may be some dry times, a slow moving closed upr lo
within a mean upr trof that wl dominate the great lks this coming
week wl bring above normal precip to upr mi this fcst period. Fri
and Sat wl likely feature AOA normal temps, but then cooler wx wl
prevail later in the weekend into mid next week as the closed lo
deep upr trof dominate.

Thu ngt into sat... A shrtwv rdg sfc hi pres wl bring dry wx to
the CWA thru at least Thu evng before the rdg axis passes slowly to
the E and some WAA ahead of an aprchg cold fnt attendant to the slow
moving lo pres in scentral canada brings more clds and at least a
chc of showers to the wrn CWA as early as late Thu ngt. Since the
closed lo wl remain nearly stnry close to lk winnipeg, the area of
waa axis of qvector cnvgc ahead of the slow moving fnt are fcst to
drift only slowly thru the upr lks on Fri fri ngt, prolonging the
chc for showers. H85 temps up to 10c on Fri in WAA pattern ahead of
the aprchg fnt wl allow temps to rise AOA 70 away fm the cooling
influence of mainly lk mi. Although most of the medium range
guidance shows the fnt passing the ern CWA by 12z Sat with the
arrival of weak sfc rdging dry slotting ending the pcpn, some of the
slower guidance indicates a later FROPA with shower chcs lingering
over mainly the E half thru at least part of sat. Coonsidering the
sluggish closed lo near lk winnipeg, this slower scenario is
possible. Given the uncertainty, did not change the consensus fcst.

Because the airmass following the FROPA on Sat wl not be a cool one
with h85 temps near 10c, highs on Sat should exceed 70 at some
places over the scentral with a downsloping W wind.

Sat ngt into tue... While most of the longer range guidance indicates
the closed lo wl drift slowly to the SE and near the upr lks during
this period, there are disagreements on the timing of not only the
main feature but also on other weaker shrtwvs rotating thru the deep
cyc flow and the impact on the mslp field. A few of the extended
models have hinted a deeper sfc lo may dvlp over the lower great lks
on Sun and drift nwd just to the E of the CWA on Mon in the sly flow
alf ahead of the aprchg closed lo. This scenario would result in a
more wdsprd rain and stronger cyc nly flow very cool daytime temps.

On the other hand, the guidance that shows a less developed sfc lo
pres would support a more sct, diurnal heating driven shower
pattern. The 12z models have trended toward the fcst of a weaker sfc
lo pres. Although the details are still far from certain at this
point, the wx during the second half of the upcoming holiday weekend
may not be ideal for outdoor activities.

Tue wed... Depending on the intensity of the sfc lo and how quickly
the closed lo cyc NW flow in its wake exit to the ne, some drying
may return as early as tue. But the models that show a slower,
deeper sfc lo indicate drying ahead of trailing sfc hi pres may not
arrive until sometime on wed. If the sfc hi pres arrives by wed
under the faster scenario, more sunshine wl allow for a warmer day
with h85 temps rebounding toward 10c.

That's it... Signing off!

Aviation (for the 00z tafs through 00z Thursday evening)
issued at 739 pm edt Wed may 24 2017
vfr conditions will likely prevail thru this fcst period at
kiwd kcmx with one exception. Some radiational fog (MVFR vis) may
develop late in the night at kiwd. Not out of the question that if
the fog does develop, it could become dense, dropping vis to lifr.

At ksaw, CIGS should mostly be in the MVFR range tonight, though
periods ofVFR are also expected. If clouds happen to clear out, fog
may develop at ksaw.VFR conditions are expected at ksaw on thu.

Winds thru the period will be under 10kt at all terminals.

Marine (for the 4 pm lake superior forecast issuance)
issued at 325 pm edt Wed may 24 2017
expect winds under 20 kts at least into the weekend as a relatively
flat pres gradient dominates the upper lakes through that time. If a
deeper lo pres develops over lower mi on Sun mon, a stronger n-ne
flow is possible later in the forecast period.

Mqt watches warnings advisories
Upper michigan...

none.

Lake superior...

none.

Lake michigan...

none.

Short term... Kec
long term... Kc
aviation... Rolfson
marine... Kc


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KP53 4 mi21 min NNW 2.9 43°F 1008 hPa41°F
MCGM4 - 9099018 - Marquette C.G., MI 37 mi47 min NNW 2.9 G 5.1 45°F 1007.4 hPa40°F
GR4 - Grand Marais, MI 44 mi37 min Calm G 1 46°F 1008.5 hPa
GRIM4 44 mi47 min NW 8.9 G 8.9 41°F 1008 hPa40°F
45171 44 mi27 min 7.8 37°F 38°F1 ft1007.5 hPa
FPTM4 - Fairport, MI 53 mi37 min N 2.9 G 6 53°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 mi21 minNNW 3 mi43°F41°F93%1008 hPa

Wind History from P53 (wind in knots)
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Last 24hrNW9NW6NW5NW6N7NW7NW7N5N8N5NE4NE5CalmNE3NE9NE10NE7NE4N7N7N5N7NW7N3
1 day agoCalmS6S5S4S4S5S4S6S5CalmNE4NE8NE8NE7NE8NE8N6N5N5N8NW10NW7NW8NW7
2 days agoS7S5S6S5S5S6SW6SW5SW5SW4E3W4NW65NE6SW10
G15
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3N8NW4CalmCalmE5Calm

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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Weather Map
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IR Satellite Image from GEOS
east_satellite

GOES Local Image of GreatLakes    EDIT
Geos

Wind Forecast for Marquette, MI (23,6,7,8)
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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.