Thursday, December13, 2018 L-36.com


Marine Weather and Tides
Chatham, 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 5:57 PM EST (22:57 UTC) Moonrise 12:39PMMoonset 11:07PM Illumination 38% 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
    EDIT      (on/off)   Help
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 Chatham, MI
   Hourly   EDIT   Help
location: 46.43, -86.84     debug


Area Discussion for - Marquette, MI
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus63 kmqt 132034
afdmqt
area forecast discussion
national weather service marquette mi
334 pm est Thu dec 13 2018

Short term (this evening through Friday)
issued at 334 pm est Thu dec 13 2018
seeing some drizzle over the eastern CWA as onshore southerly flow
continues ahead of a trough. Meanwhile, along the trough shortwave
just entering the western cwa, a thin line of light snow is being
observed. The snow and associated forcing will move east across the
area this evening and tonight, but only a dusting of snow is
expected across northwestern upper mi and eastern upper mi.

Elsewhere, some snow may be seen, but not expecting any
accumulations.

Skies will clear from W to E tonight into Fri morning, leaving sunny
skies for the rest of fri. Highs tomorrow will be around 40, except
near lake michigan where they will be in the mid 30s.

Long term (Friday night through Thursday)
issued at 325 pm est Thu dec 13 2018
a quasi-split and zonal flow with a few shortwaves mixed in should
round out the extended time frame. A pacific coast storm moving in
Friday afternoon will assist in amplifying the ridge over the conus
for this weekend which will continue Friday night into Saturday with
temperatures forecast to be running 5 to 10 degrees above normal for
this time of year. An amplified 500-mb height anomaly will sit over
the upper midwest on Saturday, with some portions of the u.P.

Reaching 40 degrees. A cold front will move through the area late on
Sunday, knocking temperatures down closer to normal, albeit still in
the upper 20s. Little moisture will be involved with the cold front
passage for system-based precip, but there will be enough to disrupt
the sunny conditions with some clouds returning again on Monday.

This cold front will bring some les chances along the wnw and nw
wind belts early Monday am into Monday afternoon. GFS has roughly -
10 to -13 c for 850mb temps with the current lake superior
temperatures running about 3 to 4 c. Current forecast has run with
chance pops, and I have decided to run with that for now, given it
is still on day 4.

Ridging will return again Tuesday evening into Wednesday, though
temperatures should remain in the low to mid 30s. The next chance
for precip comes near the end of the forecast period on Wednesday
night. The three main models being gfs, ecmwf, and canadian gem
currently have a shortwave trough moving through with a slight
agreement on the timing, but amplitude differences are still present
leading to an inconclusive solution in terms of pops at this time.

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 pm lake superior forecast issuance)
issued at 334 pm est Thu dec 13 2018
wsw winds will gust to 30 knots at times as a couple of troughs move
through tonight and fri. Strongest winds will be on the N side of
the keweenaw peninsula. Light winds are then expected Fri night and
sat, with an increase in southerly winds up to 25 knots Sat night.

Winds become W on Sun and NW Sun night, possibly gusting to gales
from Sun afternoon into Mon morning. Light winds are then expected
mon night into the middle of next week.

Mqt watches warnings advisories
Upper michigan...

none.

Lake superior...

none.

Lake michigan...

none.

Short term... Titus
long term... Jaw
aviation... Titus
marine... Titus


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
KP53 10 mi62 min S 8 G 15 35°F 1017.8 hPa29°F
MCGM4 - 9099018 - Marquette C.G., MI 30 mi58 min SSW 7 G 11 35°F 1016.1 hPa (+1.5)28°F
GRIM4 36 mi38 min S 14 G 15 36°F 1016.3 hPa32°F
GR4 - Grand Marais, MI 49 mi78 min S 8.9 G 13 35°F 1018.3 hPa
BIGM4 - Big Bay, MI 54 mi78 min SSW 4.1 G 6 37°F 1014.9 hPa

Wind History for Marquette C.G., MI
(wind in knots)    EDIT      (on/off)   Help
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
5
PM
Last
24hr
SE5
SE7
SE7
SE8
SE11
G14
S6
S5
S4
S3
SE5
SW2
S5
S3
G6
SE4
S6
S6
S5
S5
S9
G12
S12
S10
G18
SW6
G19
S9
S7
G11
1 day
ago
NW2
G5
W2
SW4
SW3
S3
S8
S7
S11
S9
S6
S8
S7
S8
SE7
SE11
S8
S8
S9
G12
SE11
S12
G15
S9
SE9
SE6
G9
SE6
2 days
ago
S7
G11
SW5
G10
S2
NW4
SW2
W4
G8
W5
G10
W6
G9
W4
G9
W6
G10
W5
G11
W5
NW7
G12
NW6
G10
NW7
G10
NW5
G12
NW6
G9
NW5
G10
NW4
G12
NW7
G14
NW4
G9
NW3
W2
G5
W3

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Munising - Munising Lakeshore Observation, MI10 mi62 minS 8 G 15 mi35°F28°F78%1017.8 hPa

Wind History from P53 (wind in knots)
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
5
PM
Last 24hrSE5CalmCalmE3SE4SE7S6S4S3S3CalmCalm3SW3S3S4S4S6S10S5S7S8
G16
S8S8
G15
1 day agoNW8S3SW4S3SW3S4CalmS4S3S4CalmSE6SE6SE7--S5SE7S7
G16
S10
G17
S7
G18
S6
G18
SE7SE7S5
2 days agoS8S8S10SW5SE5S4SE5S6W6CalmW5W9W5W8N12
G20
N11N8NW10NW7NW6NW7NW9NW12NW7

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    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 Marquette, MI (17,4,5,8)
      (on/off)   Help

Ground Weather Radar Station Marquette, 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.