Tuesday, January16, 2018 L-36.com


Marine Weather and Tides
Altoona, 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 7:37AMSunset 4:55PM Tuesday January 16, 2018 7:24 PM CST (01:24 UTC) Moonrise 7:14AMMoonset 4:45PM Illumination 0% Phase: New Moon; Moon at 0 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 Altoona, WI
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location: 44.78, -91.48     debug


Area Discussion for - Twin Cities, MN
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Fxus63 kmpx 162343
afdmpx
area forecast discussion
national weather service twin cities chanhassen mn
543 pm cst Tue jan 16 2018

Short term (this evening through Wednesday)
issued at 215 pm cst Tue jan 16 2018
the short term concern remains temperature trend through
Wednesday.

Finally worked lower clouds out of the CWA this afternoon. Water
vapor imagery shows flow dropping south southwest across the
region in the wake of yesterdays upper trough. Some patchy
mid high levels clouds will translate south overnight bringing
mainly clear to partly cloudy conditions. The surface ridge
remains over western mn and will drop south overnight. Already
seeing some pressure falls over the west. This along with some
clouds overnight and a southerly wind developing should preclude
significant temperature drop over the northwest cwa. Still will
see at least some single digit below zero readings to the
southeast closer to the retreating high.

Some filtered sunshine from time to time Wednesday as most models
drive a short wave over the western CONUS ridge across north
dakota Wednesday. This should increase the south southwest winds
over the region through the day. It should also draw some modified
pacific air eastward. We warmed temperatures and over the west,
especially to the lee of the buffalo ridge into the lower 30s.

@0s should remain elsewhere.

Long term (Wednesday night through Tuesday)
issued at 215 pm cst Tue jan 16 2018
the longer term concerns remain the short wave moving north of
the CWA Wednesday night into Thursday and if there is enough
moisture to mention a small pop over the northeast CWA into
Thursday. The 12z GFS is strongest with the short wave and dives
it farther south over the western great lakes. If his would occur,
we may have to introduce a low end pop to the far northeast cwa
later Wednesday night into Thursday. At the moment it appears this
wave will weaken as it approaches the great lakes and moisture is
limited. We will keep the forecast dry for now.

Pacific air returns to the area for the remainder of the week
with temperatures warming through the 30s expected most areas. The
focus turns to the possible development of storm system over the
mid upper mississippi river valley later Sunday and Monday. The
deterministic runs have come into some agreement on the southern
stream trough moving across across the southwest into the plains
Sunday. 12z GEFS probability plots continue to favor about the
southern third of mn and into central wi during this period. A
shift in the development of the system has occurred on the 12z
ecmwf where it is a little more split in its overall trough
development at least initially. It closes off the upper low over
the central CONUS and tracks the surface low farther south than
previous runs. The 12z GFS trended more toward previous ecmwf
runs and lifted the snow a bit farther south into the state. For
the moment with will hold onto some likely pops in the forecast
from Sunday afternoon and spread them east into Monday. Still
plenty of time for models to shift in overall storm track. 12z
gefs plumes are still showing a large spread in overall QPF and
possible snow amounts. Depending on overall trough and surface
development, we could see some decent blowing drifting snow with
the system as well. Certainly something to continue to monitor.

Aviation (for the 00z tafs through 00z Wednesday evening)
issued at 543 pm cst Tue jan 16 2018
vfr conditions will prevail through the period with only high
clouds moving across the area. Light westerly winds become
southwesterly overnight, increasing to 10-15 kts late tomorrow
morning.

Kmsp... No additional concerns.

Outlook for kmsp
thu...VFR. Wind SW at 5-10 kts.

Fri...VFR. Wind SW at 5-10 kts.

Sat...VFR. Wind w-nw at 5 kts.

Mpx watches warnings advisories
Wi... None.

Mn... None.

Short term... Dwe
long term...

aviation... Eta


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Chippewa Valley Regional Airport, WI7 mi88 minWSW 410.00 miFair4°F-2°F76%1037.5 hPa
Menomonie Municipal Airport-Score Field, WI22 mi49 minN 010.00 miFair2°F-3°F78%1035.2 hPa

Wind History from EAU (wind in knots)
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Last 24hrNW6NW6N8NW4N66N7N5CalmCalmW3CalmCalmNW4NW5W4W7SW11W11W10W11W9SW4W5
1 day agoSE9SE6SE6SE6CalmNE3NE4N4N5N8NW8N8N9N11
G19
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NW12NW12NW9NW9NW6NW7NW9
2 days agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSE8S11S11S10SE8S11S12
G20
S10SE7SE10

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
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IR Satellite Image from GEOS
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GOES Local Image of GreatLakes    EDIT
Geos

Wind Forecast for Twin Cities, MN (20,4,5,8)
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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.