Tuesday, December10, 2019
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Marine Weather and Tides
Boscobel, WI

Version 3.4
NOTICE
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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:18AMSunset 4:31PM Monday December 9, 2019 11:31 PM CST (05:31 UTC) Moonrise 3:10PMMoonset 4:27AM Illumination 97% Phase: Waxing Gibbous; Moon at 13 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 Boscobel, WI
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location: 43.14, -90.7     debug


Area Discussion for - La Crosse, WI
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FXUS63 KARX 100426 AFDARX

Area Forecast Discussion National Weather Service La Crosse WI 1125 PM CST Mon Dec 9 2019

SHORT TERM. (This evening through Tuesday) Issued at 220 PM CST Mon Dec 9 2019

As this system continues to move out, lingering light snow showers will continue to move east and out of the region by tonight. Cold air advects in behind the cold front and high pressure builds into the region. Gusty northwesterly winds will diminish into the teens overnight and last through tomorrow afternoon. Temperatures combined with wind will create wind chills into the -10 to -20 range by Tuesday morning.

After midnight, there is a chance for flurries through tomorrow afternoon. The further north and east into Wisconsin, the greater the chance for flurries as soundings show decent lapse rates and better low level saturation than areas to the south and west. High temperatures will be in the single digits to teens.

LONG TERM. (Tuesday night through Monday) Issued at 220 PM CST Mon Dec 9 2019

Surface ridge builds into the Upper Great Lakes quickly Wednesday and forecast area will be dry. Arctic airmass will allow temperatures to be well below normal . with highs rising to around zero to the teens.

Focus turns to Wednesday night into Thursday . vigorous shortwave trough quickly tracks across the Northern Plains/Upper Midwest. The 09.12z GFS/NAM are in good agreement with decent forcing/isentropic lift in association with the shortwave trough Hence. the deterministic models are suggesting slightly higher qpf amounts than previous runs. With temperatures through atmosphere column below freezing . precipitation type should be all snow and the higher qpf will result in slightly higher snowfall amounts. Have increased qpf and snowfall amounts slightly . based on the stronger forcing/lift with the shortwave trough.

Main forecast concerns are precipitation chances Thursday night into Monday. The 09.12z deterministic models are in good agreement with overall west to northwest upper level flow pattern through the period. Biggest issue during the period is timing the pieces of energy embedded in the upper level flow across the northern tier states/Upper Midwest Depending on temperatures. precipitation types will be an issue . as the deterministic models suggest a couple of days temperatures are expected to be near or above freezing.

AVIATION. (For the 06Z TAFS through 06Z Tuesday night) Issued at 1125 PM CST Mon Dec 9 2019

Cigs/WX/vsby: Low, mostly mvfr deck making slow, steady progress east - just clearing KRST now with satellite trends suggesting moving east of KLSE between 06-07z. Could see a mid level sct-bkn VFR deck for Tue morning but then some hints via RH fields that a few hours of MVFR could develop for Tue afternoon. Decent low level lapse rates and cold air advection to promote the SC that could lead to some flurries too. With Bufkit RAP/NAM showing this potential, going to tempo in a few hours.

Winds: holding west and mostly around 10kts or so through Tue, with some slight shift down and to the southwest for the evening.

ARX WATCHES/WARNINGS/ADVISORIES. WI . None. MN . None. IA . None.

SHORT TERM . Peters LONG TERM . DTJ AVIATION . Rieck


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Boscobel, Boscobel Airport, WI2 mi39 minWNW 9 G 199.00 miLight Snow17°F8°F68%1013.1 hPa
Prairie Du Chien Municipal Airport, WI24 mi37 minWNW 13 G 1610.00 miOvercast13°F5°F72%1013.5 hPa

Link to 5 minute data for KOVS

Wind History from OVS (wind in knots)
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Last 24hrCalmCalmE3CalmNE3CalmCalmCalmCalmCalmSW4SW3W8W6
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1 day agoS9
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2 days agoCalmCalmCalmCalmCalmSW3CalmCalmSW6SW5SW8SW7S8SW8
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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    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 La Crosse, WI (0,6,7,8)
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Ground Weather Radar Station La Crosse, WI
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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 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.