Tuesday, July7, 2020
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Marine Weather and Tides
Sault Ste. Marie, MI

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
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.

Sunrise 5:51AMSunset 9:33PM Tuesday July 7, 2020 6:00 AM EDT (10:00 UTC) Moonrise 10:36PMMoonset 7:13AM Illumination 96% Phase: Waning Gibbous; Moon at 17 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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LSZ322 1030 Am Edt Mon May 25 2020
.the st marys river system has been reopened to vessel navigation... The united states coast guard in sault ste marie has reopened the st marys river system to navigation. The dense fog which affected the river system earlier in the day has now dissipated...allowing for safe navigation once again. Lat...lon 4652 8417 4653 8413 4650 8411 4644 8414 4637 8414 4632 8423 4650 8439 4651 8437 4649 8431 4649 8427 4654 8420
LSZ322 Expires:202005251530;;225390 FZUS73 KAPX 251430 MWSAPX Marine Weather Statement National Weather Service Gaylord MI 1030 AM EDT Mon May 25 2020 LSZ322-251530-


7 Day Forecast for Marine Location Near Sault Ste. Marie, MI
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location: 46.46, -84.32     debug


Area Discussion for - Gaylord, MI
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FXUS63 KAPX 070722 AFDAPX

Area Forecast Discussion National Weather Service Gaylord MI 322 AM EDT Tue Jul 7 2020

NEAR TERM. (Today through Tonight) Issued at 323 AM EDT Tue Jul 7 2020

. Showers/storms today in spots .

High impact weather potential: Low. A few stronger storms possible in ne lower MI this afternoon.

Low pressure is well to our north, transiting Hudson Bay. An associated cold front drapes down across central Superior and western upper MI. Multiple clusters of showers/t-storms are occurring ahead of this front. Precip trends are the primary concern.

Presently, there are sct showers and isolated storms in eastern upper MI, on down to Beaver Isl. The most widespread activity though is further south, over Lake MI and pushing into Leelanau/ Benzie/Manistee Cos. (This is the exact opposite of what was expected 24 hours ago. Convection!) Instability is unimpressive right now, and intensification is not expected thru late morning. In fact, coverage should overall show a gradual decreasing trend this morning, as activity crosses most of northern MI.

For this afternoon, the front will be over ne lower MI, and a weak surface wave may spin up along the boundary (slowing its eastward progress). Temps will again take a run at 90f/low 90s in ne lower, even with the eventual arrival of some cloud cover. MlCape values will bubble up to almost 1k j/kg in se sections of the forecast area. Thus expect convection to become more numerous and more intense this afternoon in ne lower MI. 0-6km bulk shear values are still restrained (15-25kt), but this is more instability than we have realized the past couple of days. Locally heavy rain, gusty winds, and small hail may be possible with stronger afternoon storms. A stray pulse svr storm is not out of the question, though an organized svr threat is not expected. (We are presently not outlooked for svr by SPC.) Another place convection could briefly fire this afternoon is in eastern upper MI, south of M-28, as a secondary trof/low-level convergence axis develops.

Max temps will be somewhat cooler today in eastern upper and nw lower MI, ranging thru the 80s. Still toasty in ne lower, near 90 to the lower 90s.

Activity could linger as late as mid-evening near Saginaw Bay, but otherwise briefly cooler, drier, and more stable air will be in place across northern MI tonight. No precip is expected. Skies will initially be mostly clear, but some patchy fog/stratus could form overnight. Min temps tonight a little cooler, upper 50s to mid 60s.

SHORT TERM. (Wednesday through Thursday) Issued at 323 AM EDT Tue Jul 7 2020

. Hot and Muggy with Some Rainfall Possible .

High Impact Weather Potential . Low.

Forecast Concerns . Pops.

The ridge restrengthens again Wednesday leaving lake breezes as the sole focus for the possible development of isolated convection from mid to late afternoon (mainly across north central and northeast lower). Another trough begins to approach the region from the northwest Thursday. Slowly falling heights out ahead of that system in combination with strong daytime heating could spark a few showers and storms Thursday afternoon and evening. It will remain hot and muggy with highs in the upper 80s to the mid 90s and lows in the mid to upper 60s.

LONG TERM. (Thursday night through Monday) Issued at 323 AM EDT Tue Jul 7 2020

. An Eventual Break from the Extreme Heat .

High Impact Weather Potential . Low.

Another short wave arrives overnight Thursday into Friday likely resulting in a round of showers and thunderstorms. Lingering troughing over the weekend could ignite a few diurnally driven showers or storms. It will remain hot and humid through Friday then temperatures (and humidity) are expected to decrease by several degrees for the remainder of the period but still be slightly above normal.

AVIATION. (For the 06Z TAFS through 06Z Tuesday night) Issued at 1145 PM EDT Mon Jul 6 2020

A cool front will slide thru Northern Lower Michigan overnight and Tuesday . providing our area with small chances of showers and thunderstorms during this time. Prevailing conditions will remain VFR overnight thru Tuesday night . but may briefly drop to MVFR within any showers or storms that develop. Light/variable winds overnight will again lend to lake breeze development on Tuesday.

MARINE. Issued at 323 AM EDT Tue Jul 7 2020

A weak cold front will gradually cross the region today. Southwest winds ahead of the front will veer west and northwest behind it today into tonight. Winds will remain on the light side, and winds/waves will remain short of advisory criteria (in most cases, well short). Light southerly winds return for Wednesday. Southwest winds will be a bit gustier on Thursday.

APX WATCHES/WARNINGS/ADVISORIES. MI . NONE. LH . NONE. LM . NONE. LS . NONE.

NEAR TERM . JZ SHORT TERM . AS LONG TERM . AS AVIATION . MR MARINE . JZ


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LTRM4 - 9076032 - Little Rapids, MI 2 mi43 min Calm G 1.9 66°F 53°F1012.4 hPa65°F
SWPM4 - 9076070 - S.W. Pier, MI 4 mi43 min Calm G 0 67°F 63°F1011.6 hPa
WNEM4 - 9076027 - West Neebish, MI 13 mi43 min Calm G 1 66°F 56°F1012.1 hPa65°F
RCKM4 - 9076024 - Rock Cut, MI 15 mi43 min Calm G 1 64°F1012 hPa
PTIM4 - 9099004 - Point Iroquois, MI 17 mi43 min ESE 1.9 G 2.9 67°F 1012.2 hPa67°F
DTLM4 - 9075099 - De Tour Village, MI 39 mi43 min WSW 1.9 G 2.9 70°F 61°F1012.2 hPa70°F
WFPM4 - Whitefish Point, MI 40 mi21 min SW 2.9 G 4.1 66°F 1011.5 hPa

Wind History for Little Rapids, MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sault Ste. Marie, MI3 mi66 minN 010.00 miMostly Cloudy69°F66°F90%1011.9 hPa
Sault Ste Marie, Chippewa County International Airport, MI16 mi65 minN 010.00 miMostly Cloudy69°F68°F96%1012.3 hPa

Link to 5 minute data for KANJ

Wind History from ANJ (wind in knots)
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Last 24hrE3E3E43E4E4SE9SE7SE5SE6SE8
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1 day agoCalmCalmCalmCalmCalm34NW9NW34NW5CalmE3E5E4SE4CalmCalmE4CalmCalmSE4E3Calm
2 days agoCalmCalmCalmCalmCalmS534W5N5NW5W5NW9NW6W5W4CalmSW3CalmCalmCalmW3CalmCalm

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Gaylord, MI (6,6,7,8)
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Ground Weather Radar Station Gaylord, MI
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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 numerous 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.