Saturday, June12, 2021
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Marine Weather and Tides
Chatham, MI

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 5:54AMSunset 9:44PM Saturday June 12, 2021 10:21 AM EDT (14:21 UTC) Moonrise 6:26AMMoonset 10:57PM Illumination 7% Phase: Waxing Crescent; Moon at 2 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 Expires:202106110115;;062474 fzus73 kmqt 110013 mwsmqt marine weather statement national weather service marquette mi 813 pm edt Thu jun 10 2021 lsz248>251-265>267-110115- 813 pm edt Thu jun 10 2021 a marine weather statement has been issued for the following areas... 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... Marquette to munising mi... Munising to grand marais mi... At 812 pm 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 21 nm northwest of pancake shoal to 14 nm southeast of point isabelle, moving southeast at 25 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 4676 8506 4676 8522 4671 8524 4663 8553 4663 8755 4678 8770 4720 8784 4720 8562 4691 8492 4680 8484
LSZ249


7 Day Forecast for Marine Location Near Chatham, MI
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location: 46.43, -86.84     debug


Area Discussion for - Marquette, MI
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FXUS63 KMQT 121132 AFDMQT

Area Forecast Discussion National Weather Service Marquette MI 732 AM EDT Sat Jun 12 2021

SHORT TERM. (Today and tonight) Issued at 311 AM EDT SAT JUN 12 2021

Upper low lifting northward through Manitoba will continue to push a weak cold front across the U.P. this morning. Scattered shras and isolated tsra will continue ahead of the front across the eastern U.P. this morning with a diminishing trend from west to east. As drier air moves into the west it will mix out lower clouds with clearing skies from west to east through the day. Highs today will be pleasant in the 70s.

Surface ridging over the Midwest will build into the Upper Lakes tonight with a clear and seasonable night expected. Enough low level moisture may remain over the eastern U.P. for some patchy fog development.

LONG TERM. (Sunday through Friday) Issued at 339 AM EDT SAT JUN 12 2021

Overall, the extended forecast period will be characterized by mostly dry weather and a general trend toward cooler temperatures. A clipper system moving through late Sunday into early Monday will provide the best chance of precipitation, primarily across west- central Upper Michigan. Otherwise, the synoptic scale pattern is expected to favor and increasingly amplified western ridge and eastern trough. This results in primarily north to northwest flow aloft implying cool and dry weather in our neck of the woods.

On Sunday morning, an energetic clipper system will dig southeast toward our CWA. This system is expected to instigate low level warm air advection and frontogenesis across the western CWA. Decent dynamic forcing combined with favorable diurnal timing suggests scattered to perhaps widespread showers and thunderstorms Sunday afternoon into the evening. There is some uncertainty with how long to keep precipitation chances going Sunday night. Fast system speed suggests precipitation will clear quickly, but some lingering low stratus and drizzle can't be ruled out near the Lake Superior shore.

Noticeably cooler and drier air moves in by Monday morning with continued cold air advection expected during the day on Monday. Light north winds persist into Tuesday evening when the surface ridge moves overhead. Calm winds and clear skies combined with a dry air mass in place should result in efficient radiational cooling Tuesday night. Most interior locations are expected to cool into the low to mid 40s by Wednesday morning, but upper 30s are possible in the typical cool spots. Abundant sunshine will allow temperatures to warm rapidly on Wednesday with gradually increasing southerly winds.

A seasonably strong ~990 mb low tracks east across southern Canada on Thursday resulting in gusty southwest winds across our CWA. Strong warm air advection allows temperatures to warm well into the 80s on Thursday. A cold front is expected to pass through the CWA Thursday night suggesting Thursday will be the warmest day of next week. Precipitation chances along the cold front currently appear low due to limited moisture return, but this is subject to change. Long range deterministic model guidance indicates the post-frontal air mass will be similarly chilly to Monday and Tuesdays air mass. Thus, afternoon highs in the low 70s and morning lows in the lower 40s should be expected late next week.

AVIATION. (For the 12Z TAFS through 12Z Sunday morning) Issued at 731 AM EDT SAT JUN 12 2021

After a brief period of LIFR cigs/vsbys at KIWD and KCMX early this morning, drier air will scour out the low level moisture resulting in a quick jump to VFR conditions. Other than a brief period of MVFR cigs at KSAW, VFR conditions are expected there through the TAF period.

MARINE. (For the 4 AM Lake Superior forecast issuance) Issued at 311 AM EDT SAT JUN 12 2021

Patchy dense fog will linger over the Lake this morning but as drier air moves in from the west on westerly winds, it will both scour out some of the fog and push it eastward through the day. With high pressure building over the Lake winds will remain below 20 knots at least into Thursday.

MQT WATCHES/WARNINGS/ADVISORIES. Upper Michigan . None. Lake Superior . None. Lake Michigan . None.

SHORT TERM . MZ LONG TERM . EK AVIATION . MZ MARINE . MZ


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KP53 10 mi26 min 2.9 63°F 1011.9 hPa58°F
MCGM4 - 9099018 - Marquette C.G., MI 30 mi52 min ESE 1 G 1.9 59°F 1010.6 hPa55°F
GRIM4 36 mi22 min S 1 G 1.9 65°F 1011.9 hPa (+1.0)62°F
GR4 - Grand Marais, MI 49 mi42 min W 1 G 5.1 62°F 1013.2 hPa
BIGM4 - Big Bay, MI 54 mi42 min Calm G 1.9 58°F 1010.8 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, MI10 mi26 minVar 3 mi63°F58°F84%1011.9 hPa

Link to 5 minute data for KP53

Wind History from P53 (wind in knots)
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Last 24hr3S4N6NE6NE3NE3N3CalmNE4--3S10
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4S64SE753SW7SW8S8SW33
1 day agoCalmS6Calm3N4S10
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2 days agoNE9N4NE3CalmCalmN4NE3NE3CalmCalmCalmS6S85S66S7S6S556S8S6S6

Tide / Current Tables for
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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