Saturday, April21, 2018 L-36.com


Marine Weather and Tides
Neenah, 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 5:57AMSunset 7:47PM Saturday April 21, 2018 2:17 AM CDT (07:17 UTC) Moonrise 10:35AMMoonset 1:00AM Illumination 34% 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
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LMZ543 Rock Island Passage To Sturgeon Bay Wi- Sturgeon Bay To Two Rivers Wi-two Rivers To Sheboygan Wi- 927 Pm Cdt Fri Apr 20 2018
Rest of tonight..Light and variable wind. Waves 2 ft or less. Partly cloudy.
Saturday..S wind 5 to 10 kts. Waves 2 ft or less. Partly cloudy in the morning then clearing.
Saturday night..S wind 5 to 10 kts becoming light and variable after midnight. Waves 2 ft or less. Clear.
Sunday..Light and variable wind becoming se 5 to 10 kts in the late morning and afternoon. Waves 2 ft or less. Sunny.
LMZ543 Expires:201804211015;;261252 FZUS53 KGRB 210227 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 927 PM CDT Fri Apr 20 2018 For waters within five nautical miles of shore on Lake Michigan LMZ541>543-211015-

7 Day Forecast for Marine Location Near Neenah, WI
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location: 44.18, -88.48     debug


Area Discussion for - Green Bay, WI
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Fxus63 kgrb 210329
afdgrb
area forecast discussion
national weather service green bay wi
1029 pm cdt Fri apr 20 2018
updated aviation portion for 06z TAF issuance

Short term Tonight and Saturday
issued at 302 pm cdt Fri apr 20 2018
will be leaning heavily on persistence for the forecast through
Saturday, as little change in air mass is anticipated.

An increase in high clouds should keep low temperatures 3 to 5
degrees warmer than last night. Have opted to leave any mention of
fog out of the forecast, despite the surface high residing over
the region. Just like yesterday, dew points crashed into the
single digits and teens over most of the area this afternoon,
despite significant snow melt. Given the degree of dryness, and
the presence of high clouds overhead, fog development appears
unlikely overnight.

High clouds should thin out during the mid to late morning
Saturday, followed by plenty of sunshine. Mixing through 850-800
mb will support high temperatures in the middle 50s to around 60,
except upper 40s and lower 50s near lake michigan. These readings
should be very similar to today.

Long term Saturday night through Friday
issued at 302 pm cdt Fri apr 20 2018
warmer temperatures causing the snowpack to continue melting will
be the main concern for the long term. The next chance for
precipitation arrives Tuesday evening with a shortwave trough and
its associated cold front.

For the start of the period through Sunday night, a split upper
level flow occurs across the central plains with the upper
mississippi valley remaining in the ridge of high pressure, while
a more aggressive low pressure system travel across the lower
mississippi valley. While the ridge of high pressure remains
dominate over wisconsin on Sunday, expect slightly warmer
temperatures with mostly sunny skies.

By Monday morning, the ridge almost completely exits wisconsin
due to the zonal flow strengthening to the north. Temperatures for
Monday could reach to the lower 60s for almost the entire cwa,
excluding the lakeshore counties, impacting the snow melt even
more. The zonal flow continues to the north of wisconsin Monday
through Tuesday morning before the shortwave trough makes its
appearance Tuesday night. There is much uncertainty amongst model
guidance with the shortwave trough. The 12z ECMWF shows a phasing
problem with the shortwave as a disturbance splits off staying to
the southwest of wisconsin and a wave of energy advancing faster
to the north dropping some precipitation over the region Tuesday
night. GFS is a bit more aggressive with the shortwave trough
allowing a closed low to form across southwest wisconsin. It also
appears to be overestimating liquid precipitation values compared
to the other models. A blend of the models was chosen with chance
pops through Wednesday afternoon as the shortwave trough exits
the region.

Aviation For 06z TAF issuance
issued at 1029 pm cdt Fri apr 20 2018
high level clouds will pass over the region through Saturday
morning, with skies clearing out later in the morning into the
afternoon hours. OtherwiseVFR conditions should prevail at most
locations through the TAF period. Given the dry air and low dew
points currently in place will continue to leave fog out of the
tafs during the overnight hours.

Hydrology
Issued at 302 pm cdt Fri apr 20 2018
warming temperatures are expected to produce significant melting
of the current snowpack over northeast wi. This will lead to
runoff and a gradual rise of area rivers and streams. Several
rivers are expected to surpass bankfull this weekend and possibly
flood stage as early as Monday evening for the wolf river basin.

People living near rivers and streams should keep a close eye on
the anticipated river rises and keep up to date on the latest
river forecasts.

Grb watches warnings advisories
None.

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SGNW3 - Sheboygan, WI 51 mi77 min W 2.9 G 2.9 41°F 1031.5 hPa (+0.0)22°F
KWNW3 - 9087069- Kewaunee, WI 56 mi47 min WNW 1.9 G 1.9 31°F 1030 hPa

Wind History for Kewaunee MET, WI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Appleton-Outagamie, WI6 mi22 minN 010.00 miFair36°F12°F38%1029.8 hPa
Wittman Regional Airport, WI13 mi24 minSSW 710.00 miFair39°F19°F45%1031.1 hPa

Wind History from ATW (wind in knots)
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Last 24hrW3W4W754W533334SW4SW5SW5S6S5S6S4CalmSW7SW4SW5S3SW3
1 day agoN12N10N10NW9NW8NW9N8N7NW6W6W5W5W5W5W8W8W9W9W8W8W9W10NW8NW6
2 days agoCalmN5N4N5NE6NE7NE10NE10E10
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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 (3,6,7,8)
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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.