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Marine Weather and Tides
Version 3.4 |
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues. 6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported. 5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive. |
| Sunrise 6:51AM | Sunset 8:45PM | Thursday April 19, 2018 5:37 AM EDT (09:37 UTC) | Moonrise 8:33AM | Moonset 11:57PM | Illumination 16% |  |
Marine Forecasts
EDIT (on/off) Help| This is a Weather Statement Zone, please check the Date to see if it has expired LSZ249 957 Pm Edt Thu Sep 28 2017 .a strong Thunderstorm over the waters... The areas affected include... 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... Marquette to munising mi... At 956 pm edt...doppler radar indicated a strong Thunderstorm... Capable of producing winds to around 30 knots. This Thunderstorm was located near presque isle...moving southeast at 20 knots. Locations impacted include... Laughing whitefish point...shot point...shelter bay...au train island...presque isle and grand island. 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 this storm passes. && lat...lon 4649 8703 4644 8725 4659 8749 4669 8738 4665 8731 4673 8732 4679 8725 4667 8666 4641 8669 4640 8672 4643 8677 4640 8690 | This is a Weather Statement Zone, please check the Date to see if it has expired LSZ249 Expires:201709290245;;082710 FZUS73 KMQT 290157 MWSMQT MARINE WEATHER STATEMENT NATIONAL WEATHER SERVICE MARQUETTE MI 957 PM EDT THU SEP 28 2017 LSZ248-249-266-290245- |
7 Day Forecast for Marine Location Near Munising, MI
Hourly EDIT Helplocation: 46.38, -86.71 debug
Area Discussion for - Marquette, MI
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus63 kmqt 190842 afdmqt area forecast discussion national weather service marquette mi 442 am edt Thu apr 19 2018 Short term (today and tonight) issued at 441 am edt Thu apr 19 2018 very quiet in the short term. Mostly clear skies expected through the short term, with highs today ranging from the upper 30s near eastern lake superior to the upper 40s interior w. Very dry air and light winds associated with the sfc ridge over the area will allow min temps to be in the mid teens over the interior tonight. Long term (Friday through Wednesday) issued at 433 am edt Thu apr 19 2018 a quiet period of weather is still expected thru early next week with temperatures returning to more typical mid late apr values. Obviously, the quiet weather will be ideal as we don't need to add rain to the snowpack which will be melting down under warmer conditions and high spring Sun angle. Building positive height anomaly across S central canada and hudson bay will force the next shortwave trof now moving onshore in ca way to the S across the lower mississippi valley SE states late weekend early next week. A couple of shortwaves will then track eastward in the vcnty of the u.S. Canada border during the first half of next week. The first may not generate any shra for upper mi as it passes well to the n. More vigorous second wave should pose a decent potential of rain then rain snow Tue into wed. As for temps, warming trend will occur thru the weekend as development of positive height anomalies across s central canada ensures no late season cold air to the n. Temps will rise to around normal or slightly above normal as snowcover should not really inhibit warming given the high Sun angle working on the forested upper mi landscape on mostly sunny days. A cool down is expected for the middle of next week as trof passes. As was the case yesterday, there are no major weather concerns for this fcst cycle. Mean mid upper level ridging over S central canada to hudson bay will support sfc high pres over the great lakes region fri thru sun, resulting in dry weather. The GFS still spits out some pcpn Fri aftn and Sat aftn in the lake breeze convergence zone central, a result of too much low-level moisture from melting snow. This has been a bias seen in the model in recent weeks. Outside of some high clouds at times, generally sunny days and clear nights are expected thru sun, a fairly typical spring time scenario for upper mi. Winds will be on the light side thru the weekend, especially fri sat, with high pres over the great lakes region and meso highs setting up each aftn over the waters, particularly Fri sat, leading to the usual chill near the lakes each aftn (temps in the 30s). Away from lake cooling, high temps will be in the 50s Fri thru sun, though some locations will likely top 60f Sat sun. Best chc of seeing more widespread MAX temps at or above 60f will be on mon ahead of approaching cold front. Good radiational cooling nights will be coming up with tonight being the best. Fri night Sat night will still feature good nighttime cooling though models suggest thicker high clouds will pass acros the area Fri night. Favored the bias corrected global cmc for mins as it is typically a superior performer on radiational cooling nights. Dry air mass over the area and generally little cloud cover will support large diurnal temp swings, especially while snow cover is still consistent across the landscape to allow sharp nighttime temp falls. Interior mins should tumble back to the low mid 20s Fri night Sat night. Incorporated lower dwpt guidance into the fcst to adjust dwpts down as some of the raw model fcsts, GFS in particular, included in the blended guidance are raising sfc dwpts too much with the melting snow. Cold front associated with first shortwave will slowly move across the fcst area Mon night thru Tue as it slows down in response to second shortwave approaching. At this point, it appears the front will initially arrive without any pcpn. There is plenty of |
uncertainty with the second, more vigorous shortwave arriving midweek. However, at least for the 00z runs, the GFS cmc ECMWF are surprisingly similar depicting a mid-level low closing off as the wave moves across the western great lakes, a scenario that could lead to rain transitioning to some accumulating snowfall for at least parts of the area. Despite the 00z run agreement, there are not a whole lot of ensembles supporting that idea at the moment. Will be something to monitor. Significant rainfall should not be a concern with this system as flow behind southern stream wave moving from the lower mississippi valley to the SE states will prevent gulf moisture return to this northern system. Aviation (for the 06z tafs through 06z Thursday night) issued at 130 am edt Thu apr 19 2018 primary concern for the overnight period will be to closely monitor iwd for possible fog formation, although if it does come to fruition, should teeter in the upper-end of the MVFR category. Otherwise,VFR looks to prevail throughout the rest of the taf period. Additional considerations for gusty nne becoming nnw winds to continue during the overnight period well into the daylight hours on Thursday for saw before surface ridging moving in from the west helps to settle the winds down area-wide. Marine (for the 4 am lake superior forecast issuance) issued at 441 am edt Thu apr 19 2018 gusts of 20-25 kts today will diminish this evening and tonight, then winds will remain below 20 kts through the rest of the forecast period. Hydrology Issued at 433 am edt Thu apr 19 2018 snowpack will be melting thru at least early next week under warming which will push temps to around normal or even slightly above normal. Mostly sunny days thru the weekend will strongly aid the melting. With nighttime temps falling blo freezing and dewpoints likely remaining low, only a gradual increase in melting runoff should occur. Early next week, min temps may not fall blo freezing for a night or two, increasing runoff potential, though dewpoints will likely remain low, keeping melting of snow slower than would otherwise occur. The addition of notable rainfall is the biggest concern to increase flooding potential. Fortunately, there will be no pcpn thru the weekend, and pcpn which occurs Tue Wed should be on the light side as a cold front passes. Temporary cool down following the frontal passage will then slow down the ongoing snow melt. Overall, these conditions don't suggest any significant concerns with the snow melt over the next 7 days. While melting will likely be relatively controlled given the forecast, rivers will begin to respond this weekend and minor flooding is quite possible at some point down the road on the usual rivers that experience spring flooding. Mqt watches warnings advisories Upper michigan... none. Lake superior... none. Lake michigan... none. Short term... Titus long term... Rolfson aviation... Lg marine... Titus hydrology... Rolfson |
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a map| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
| KP53 | 4 mi | 42 min | N 13 | 30°F | 1021.8 hPa | 24°F | ||
| MCGM4 - 9099018 - Marquette C.G., MI | 37 mi | 56 min | NNW 7 G 11 | 32°F | 1021.4 hPa | 22°F | ||
| GR4 - Grand Marais, MI | 44 mi | 58 min | N 13 G 17 | 32°F | 1021 hPa | |||
| GRIM4 | 44 mi | 38 min | N 12 G 15 | 33°F | 1022.5 hPa (+1.6) | 28°F | ||
| FPTM4 - Fairport, MI | 53 mi | 58 min | N 6 G 9.9 | 30°F | 1019.6 hPa |
Wind History for Marquette C.G., MI
(wind in knots) EDIT (on/off) Help| 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | |
| Last 24hr | N G11 | N G9 | N | N G11 | N G8 | N G9 | N G12 | N G16 | N G17 | N G19 | N G17 | N G16 | N G12 | NW G13 | NW G12 | NW G12 | NW G14 | NW G12 | NW G12 | NW G8 | N G9 | NW G10 | NW G11 | NW G8 |
| 1 day ago | NW G19 | N G20 | NW G19 | N G20 | N G26 | N G17 | N G21 | N G20 | NW G18 | N G18 | N G18 | N G18 | NW G16 | N G17 | N G17 | N G15 | NW G14 | NW G9 | N G11 | N G14 | N G9 | N G8 | N G10 | N G11 |
| 2 days ago | NE G13 | NE G8 | N G12 | N G11 | N G20 | N G18 | N G18 | N G20 | N G24 | NW G19 | N G19 | NW G19 | NW G21 | NW G19 | NW G20 | NW G17 | NW G14 | N G14 | N G17 | NW G13 | N G15 | NW G14 | N G22 | N G19 |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Munising - Munising Lakeshore Observation, MI | 4 mi | 42 min | N 13 | mi | 30°F | 24°F | 79% | 1021.8 hPa | |
Wind History from P53 (wind in knots)
| 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | |
| Last 24hr | N | N | N | NE | NE | NE | N | N | N | N | N | NE | N | NW | NW | NW | NW | N | NE | N | N | N | N | N |
| 1 day ago | N | N | N G24 | N G26 | N G25 | N G27 | N G24 | N G25 | N G24 | N | N G27 | N G25 | N G22 | N | N | N | N G21 | N | N | N G19 | N | N | N | N |
| 2 days ago | NE | NE | NE | NE | N | N | N | N | N G23 | N | N G27 | N | N G24 | N | N G21 | N G25 | N G21 | NW G25 | N | N | N | N | N | N |
Tide / Current Tables for
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GOES 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 (5,6,7,8)
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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. |