Monday, November20, 2017 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 7:08AMSunset 4:34PM Sunday November 19, 2017 11:54 PM CST (05:54 UTC) Moonrise 7:58AMMoonset 5:48PM Illumination 2% Phase: Waxing Crescent; Moon at 1 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 200518
afdmpx
area forecast discussion
national weather service twin cities chanhassen mn
1118 pm cst Sun nov 19 2017

Short term (this evening through Monday)
issued at 245 pm cst Sun nov 19 2017
the short term concern is the extent of warmer into Monday ahead
of strong cold front moving into the northwest CWA late in the
afternoon.

Pacific air lifting northeast over the CWA this afternoon. Some
mid 50s for highs on the lee of the buffalo ridge to the
southwest with a southwest breeze. Some mid high level clouds
drifted over the eastern CWA this afternoon. That should exit to
the east this evening. Ridging aloft over the dakotas has abundant
high clouds associated with the pacific moisture. This will
likely spread east across most of the CWA overnight. This should
help keep temperatures from dropping too much overnight. We should
see readings at least 10 degrees warmer than last nights lows.

Warming ahead of the incoming trough for Monday should yield at
least mid 50s for highs to the southwest once again. The only
limiting factor will be timing of the cold front and the extent of
mid high level clouds once again. We still may see a 50 in the
metro though this is at the higher end of ensemble guidance.

Long term (Monday night through Sunday)
issued at 245 pm cst Sun nov 19 2017
the strong cold front sweeps southeast over the region by late
Monday night. Gusty northwest winds of at least 20-25 mph with
gusts to 40 mph will be possible with the strong CAA and pressure
gradient that develops. We do expect some stratocumulus to develop
in the wake of the front and there may be a few flurries over the
eastern area into Tuesday. We left that out for now.

The next wave moves toward the area later Wednesday and should
increase the clouds over the area Wednesday afternoon. We should
see at least a small chance of light snow to the western cwa
during the afternoon. The GFS does saturate the boundary layer per
trends of the 295k isentropic surface. This spreads east into
Wednesday night and gradually weakens. We continued a slight
chance pop for at least the potential of light snow flurries.

Again the GEFS probability held some low chances to the east.

Ridging aloft keeps the are within the baroclinic zone across the
area. Cooling following the Wednesday system should be limited.

The next pacific system arrives Friday and we warm back into the
mid 50s to the southwest once again. Depending on timing and
extent of clouds, we could see readings approach 50 again toward
the twin cities Friday afternoon. We should see a better chance of
precipitation as this front moves through into Friday night.

Cooler air and dry conditions is drawn in the wake of this trough
into the weekend.

Aviation (for the 06z tafs through 06z Monday night)
issued at 1118 pm cst Sun nov 19 2017
looking on satellite to the northwest you see what we will be
dealing with for much of the day Monday, bkn-ovc clouds between
150 and 200. A cold front will be blasting through the axn area at
the end of the TAF period. Being ahead of the front much of this
period, we'll be dominated by southwest winds. Post fropa, there
will be potential for some big NW wind gusts, likely up around 40
kts, but speeds like that are lurking for the end of the 12z taf
period.

Kmsp... High confidence in the taf. We may have some 2k-4k ft cigs
approaching msp by 12z tue, but looks like they do not really
materialize until the Sun comes up Tuesday morning.

Outlook for kmsp
tue... Chc MVFR CIGS in morning. Winds NW 15-20g30-35 kts.

Wed...VFR. Winds SW 5-10 kts.

Thu...VFR. Winds NW to W 5kts.

Mpx watches warnings advisories
Wi... None.

Mn... None.

Short term... Dwe
long term...

aviation... Mpg


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Chippewa Valley Regional Airport, WI7 mi59 minSSW 510.00 miFair26°F21°F81%1010.9 hPa
Menomonie Municipal Airport-Score Field, WI22 mi60 minSE 510.00 miFair26°F23°F88%1009.8 hPa

Wind History from EAU (wind in knots)
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Last 24hrNW15
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W8W11W11W8W8W6W5W7W9W8W6W8W7W5SW10SW6S5S4S4S4SW4S4SW5
1 day agoN4N4N5N4N7N5N6N7NW6N9N8N9N7NW11NW11
G19
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2 days agoSE11SE11SE10
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S9SE12S13S12S8S6CalmSE3CalmSE4CalmCalmN3NW4N4NE4

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
east_satellite

GOES Local Image of GreatLakes    EDIT
Geos

Wind Forecast for Twin Cities, MN (0,6,7,8)
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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.