Monday, April23, 2018 L-36.com


Marine Weather and Tides
Marinette, WI

Version 3.4
What's New / NOTES
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 5:51AMSunset 7:48PM Monday April 23, 2018 6:07 PM CDT (23:07 UTC) Moonrise 12:41PMMoonset 2:43AM Illumination 62% Phase: Waxing Gibbous; Moon at 9 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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LMZ521 Green Bay South Of Line From Cedar River To Rock Island Passage And North Of A Line From Oconto Wi To Little Sturgeon Bay Wi- Green Bay South Of Line From Oconto Wi To Little Sturgeon Bay Wi- 304 Pm Cdt Mon Apr 23 2018
Tonight..E wind 5 to 10 kts backing N in the late evening and overnight. Waves 2 ft or less. Partly cloudy.
Tuesday..NE wind 10 to 15 kts. Waves 2 ft or less. Partly cloudy.
Tuesday night..N wind 10 to 20 kts. Waves 1 to 3 ft building to 2 to 4 ft after midnight. Partly cloudy.
Wednesday..NE wind 10 to 15 kts. Waves 2 to 4 ft subsiding to 2 ft or less in the afternoon. Sunny. Wave height forecast is for ice free areas.
LMZ521 Expires:201804240415;;393254 FZUS53 KGRB 232004 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 304 PM CDT Mon Apr 23 2018 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-240415-

7 Day Forecast for Marine Location Near Marinette, WI
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location: 45.09, -87.58     debug


Area Discussion for - Green Bay, WI
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Fxus63 kgrb 232302
afdgrb
area forecast discussion
national weather service green bay wi
602 pm cdt Mon apr 23 2018
updated aviation portion for 00z TAF issuance

Short term Tonight and Tuesday
issued at 206 pm cdt Mon apr 23 2018
the latest rap analysis and satellite radar imagery show a ridge
of high pressure extending east from new england and into the
northern mississippi valley early this afternoon. A cold front
remains largely inactive across eastern north dakota, while a
larger low pressure system is spinning over the central
mississippi valley. The far northern edge of the cirrus associated
with this southern system continues to reach northeast wi.

However, any deeper moisture remains north and south of the
region. With a dry airmass in place, forecast concerns revolve
around clouds and temps tonight, and small precip chances on
Tuesday afternoon as the front from the north moves into the
region.

Tonight... Low pressure will continue to spin over the southern
ohio valley, while the surface ridge axis will weaken over
northern wi. As minor height falls occur aloft, will see mid and
high clouds push in from the south and across northeast wi. Low
levels will remain dry though, so no threat of precip. Temps will
continue their slow warming trend and will go with a range from
the low 30s over the north to the upper 30s over the southern fox
valley.

Tuesday... Will continue to see some high clouds along the lake
michigan shoreline during the morning, but those clouds should
depart by midday. Then attention turns to the west where a digging
shortwave trough will push a weak cold front across the northern
and central parts of the state during the afternoon. The shortwave
itself appears relatively robust and will bring a moderate amount
of upper support. However, moisture as well as low level
convergence are lacking, so coverage of showers appears isolated
to scattered at best. Will keep a small chance of showers from the
fox valley to north-central wi for the afternoon. Otherwise,
clouds will be on the increase during the afternoon with highs
ranging from the low to mid 60s in the east to the low to mid 50s
over vilas county.

Long term Tuesday night through Monday
issued at 206 pm cdt Mon apr 23 2018
the effects of the cold front, arriving late Tuesday afternoon,
will linger into the start of the long term for Tuesday night.

Kept slight chance pops for Tuesday night due to possible post-
frontal rain. This shortwave trough cold front will exit the
region by early Wednesday morning. In addition, cooler air will
funnel in behind this front, causing Wednesday high temperatures
to rise slightly below normal with even cooler temperatures along
the lakeshore.

The next shortwave trough cold front will move into the region
Thursday afternoon. Model guidance is in better agreement with
timing and the evolution of this system compared to yesterday.

However, the GFS and canadian present more mid-level
frontogenetic forcing allowing for more lift and precipitation to
occur. The forecast timeframe for precipitation would be Thursday
evening and Thursday night. The precipitation would start as rain
then transition to a mix or all snow before ending Friday
morning.

Then quiet weather returns for next weekend. Temps return above
normal by Sunday.

Aviation For 00z TAF issuance
issued at 602 pm cdt Mon apr 23 2018
ridge of high pressure extending over the great lakes region will
continue to produceVFR conditions and light winds through the
period. A weak cold front will approach the area on Tuesday
afternoon. A slight chance of showers will be possible along it
during Tuesday afternoon and evening. However chances are too low
to include in the tafs with this issuance. Will handle the front
with increasing clouds and lower CIGS on Tuesday.

Hydrology
Issued at 206 pm cdt Mon apr 23 2018
river levels continue to rise from the snow melt runoff. A few
rivers have already reached minor flood stage as of this afternoon,
with many others forecast to reach or exceed bankfull this week.

There are a few chances of rain this week, Tuesday afternoon and
then again toward Thursday afternoon and Thursday night. Both
systems are not expected to generated much rainfall, so runoff
will occur from the warmer temperatures chipping away at the
snowpack. The upcoming weekend looks dry as well.

Grb watches warnings advisories
None.

Short term... ..Mpc
long term... ... Hykin
aviation... ... .Kurimski
hydrology... ... Hykin


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MN4 - 9087088 - Menominee, MI 1 mi50 min SE 4.1 G 4.1 56°F 1021.1 hPa15°F
NPDW3 - Northport Pier at Death's Door WI 35 mi88 min 42°F 1022 hPa
KWNW3 - 9087069- Kewaunee, WI 43 mi50 min NNE 4.1 G 5.1 49°F 1020.9 hPa

Wind History for Menominee, MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Menominee - Marinette Twin County Airport, MI3 mi72 minESE 810.00 miFair61°F24°F24%1024.2 hPa

Wind History from GRB (wind in knots)
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Last 24hrCalmNE6N5CalmCalmCalmNE3CalmCalmN3CalmN3CalmN3CalmW3CalmCalmNW35NE5E8NE6E6
1 day agoS4S5CalmS4CalmSW3CalmCalmCalmCalmS3CalmCalmCalmCalmS3S5S4S3S6S6SE3S5S3
2 days agoSW6SW4SW3CalmCalmCalmCalmCalmSW3CalmCalmCalmS5S3SW4SW4SW5S5S7S6S6S8S8S6

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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wmap_A
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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Green Bay, WI (19,4,5,8)
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Ground Weather Radar Station Green Bay, WI
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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.