Thursday, October19, 2017 L-36.com


Marine Weather and Tides
Yuba, WI

Version 3.4
What's New / NOTES
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.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:24AMSunset 6:15PM Thursday October 19, 2017 9:27 AM CDT (14:27 UTC) Moonrise 5:59AMMoonset 5:35PM Illumination 1% Phase: New Moon; Moon at 29 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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7 Day Forecast for Marine Location Near Yuba, WI
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location: 43.58, -90.42     debug


Area Discussion for - La Crosse, WI
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Fxus63 karx 191146
afdarx
area forecast discussion
national weather service la crosse wi
646 am cdt Thu oct 19 2017

Short term (today and tonight)
issued at 302 am cdt Thu oct 19 2017
at 3 am, the water vapor imagery shows moisture streaming into
the pacific northwest. This moisture then becomes embedded into
the zonal flow across the northern plains and canadian prairie
providence and then moves east into the upper mississippi river
valley and great lakes. Due to this upper level moisture, we have
increased the cloud cover across the area early this morning.

For today and tonight, the 19.00z models are in good agreement
that an upper level ridge will build quickly across the region.

As this occurs, the upper level moisture feed will be pushed north
of the area. As a result, expect mostly clear to clear skies
through much of this time period.

Moderate 925 mb warm air advection will develop across the
region today. The 925 mb temperatures will warm quickly to
between 12c and 15c by mid afternoon. This is much faster than it
looked like during the past couple of days. Due to this, raised
the high temperatures anywhere from 3 to 5f. It looks like the
high temperatures will be near 70 north of interstate 94 and in
the lower and mid 70s elsewhere.

Soundings show that as we mix up to 925 mb that very dry air will
mix to the surface. This will drop dew points into the mid and
upper 20s. The combination of these temperatures and dew points
will lower afternoon relative humidities 15 to 25 percent range.

Fortunately, the wind speeds are not that particularly strong.

Long term (Friday through Wednesday)
issued at 302 am cdt Thu oct 19 2017
on Friday, a strong southerly flow will push 925 mb temperatures
into the 17 to 19c range. Mixing these temperatures down to the
surface results in temperatures ranging from the mid 70s to lower
80s.

Late Friday night and Saturday morning, 850 mb moisture transport
will increase across the area. This is in response to the long
wave trough approaching the region from the plains. As this
moisture increases across the region, scattered showers will
develop across the area.

On Saturday afternoon and night, a cold front will move through
the region. Like the past couple of days, the 0-3 km wind shear
climbs into the 25 to 35 knot range, but the most unstable capes
are only up to 500 j kg. As a result, not anticipating any severe
storms to develop ahead of this front.

On Sunday night and Monday, a cold front front will move through
the region. The ECMWF has slowed down and it is now more similar
to the timing of the gfs; thus, increased the temperatures for
these time periods. Also, removed the rain chances for that time
period.

On Monday night and Tuesday, much colder air moves into the
region. While the models are in good agreement with this, there is
some disagreement on where the deformation area will be located.

The GFS and ECMWF has this east of our area. Meanwhile the
canadian has it over our area.

Aviation (for the 12z tafs through 12z Friday morning)
issued at 646 am cdt Thu oct 19 2017
vfr conditions are expected through the TAF period. Low level wind
shear will be the main concern in the tafs tonight as winds
increase into the 35 to 40 kt range around 2kft by 01z. The low
level wind shear will continue through much of the overnight
hours. Plan on increasing south winds today, especially at krst,
where winds may gust to 18 kts.

Arx watches warnings advisories
Wi... None.

Mn... None.

Ia... None.

Short term... Boyne
long term... Boyne
aviation... Wetenkamp


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Viroqua Municipal Airport, WI25 mi52 minSW 410.00 miFair48°F32°F55%1020.3 hPa

Wind History from Y51 (wind in knots)
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Last 24hrS9S9
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SW10SW7SW7SW6SW5W7W7NW10NW6NW4W5W3CalmSW3SW3SW5
1 day agoSW10SW11SW10SW8S6S10SW12
G15
SW11SW7S4S5S7S8SW6S7S7S6S6S4S5S4S5S3S8
2 days agoSW4CalmSW6SW8SW11W15
G20
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G14
CalmCalmCalmCalmS3CalmCalmS3S10CalmCalmCalmCalmCalmCalmCalmCalm

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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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Midwest    EDIT
Geos

Wind Forecast for La Crosse, WI (10,2,3,4)
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Ground Weather Radar Station La Crosse, 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.