Tuesday, November20, 2018 L-36.com


Marine Weather and Tides
Aten, NE

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:25AMSunset 5:05PM Tuesday November 20, 2018 5:43 AM CST (11:43 UTC) Moonrise 4:03PMMoonset 4:18AM Illumination 93% Phase: Waxing Gibbous; Moon at 12 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 Aten, NE
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location: 42.87, -97.49     debug


Area Discussion for - Sioux Falls, SD
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Fxus63 kfsd 201104
afdfsd
area forecast discussion
national weather service sioux falls sd
504 am cst Tue nov 20 2018

Short term (today and tonight)
issued at 325 am cst Tue nov 20 2018
a much milder day in store across the area in a warm advection
pattern as a warm front lifts through the region. Out ahead of this
feature, a north to south oriented band of stratus is moving over
the area early this morning. These clouds will continue to slide
eastward through the morning, exiting our CWA around 18z. Warm
advective affects will be most felt in our southwest, with thermal
profiles supporting highs in the upper 40s to lower 50s through
south central sd, much of the james river valley, and the lower mo
river corridor. To the east, while warmer, temperatures will still
be cool with highs in the upper 30s to lower 40s.

For tonight, a strong surface ridge slides out of central canada
with a backdoor cold front pushing through our area. Models are
suggesting stratus filling in behind this feature, increasing from
the northeast during the late night hours. The brunt of this cold
air will remain to the east of our cwa, so temperatures will remain
in check overnight, only dropping into the lower to mid 20s.

Long term (Wednesday through Monday)
issued at 325 am cst Tue nov 20 2018
the stratus may be tough to break on Wednesday, at least through
east central sd and southwestern mn, and upped sky cover over given
superblend values. With the cooler thermal profiles behind the front
and cloud cover highs will only be around 30 over that area.

Otherwise, we are looking at temperatures generally in the upper 30s
to lower 40s - perhaps mid upper 40s over far south central sd.

A nice recovery is in store for thanksgiving day - this due to upper
level ridging across the region and a strong southerly return flow
behind exiting high pressure to the east. The fly in the ointment is
whether stratus hangs on in our east, with mode rh time sections
suggesting it lingering at least into the mid afternoon. For that
reason, confidence on temperatures is lower over that area, with
currently forecasted highs in the lower 40s over east central sd
and southwestern mn. Otherwise, it looks quite mild back to the
west, with highs 10 to 15 degrees above normal - topping out in the
upper 40s to lower 50s, though closing in on 60 degrees over south
central sd.

It is still looking like a possibly unsettled period for next
weekend. Friday still looks mild with temperatures in the mid 40s to
lower 50s, with fairly decent model agreement on showers east of
interstate 29 on Friday afternoon and evening. This as an upper
level trough slides through the region and a cold front tracks
across the area. This will bring slightly cooler temperatures on
Saturday. It is looking more likely that some parts of our area will
receive at least some snowfall for Saturday night and Sunday -
though how much is still up in the air with models handling the
details differently. While both the GFS and ECMWF develop a strong
upper level low somewhere over the central southern plains on
Saturday night and Sunday, the ECMWF continues with a more southerly
solution. This will bear watching over the next few days. What is
more certain is a downward trend in temperatures for Sunday and
Monday.

Aviation (for the 12z tafs through 12z Wednesday morning)
issued at 501 am cst Tue nov 20 2018
a band of MVFR stratus is pushing across the area and will affect
khon and kfsd through the morning hours. Otherwise,VFR conditions
are expected.

Fsd watches warnings advisories
Sd... None.

Mn... None.

Ia... None.

Ne... None.

Short term... Jm
long term... Jm
aviation... Jm


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Yankton, Chan Gurney Municipal Airport, SD7 mi47 minSSE 610.00 miOvercast19°F15°F84%1028 hPa

Wind History from YKN (wind in knots)
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Last 24hrNW8NW12NW12NW14N9NW13NW13NW11NW14NW13NW10NW10NW8NW10N8N4NW7NW6NW6CalmCalmCalmSE5S6
1 day agoS6S7S6S7S5S8S8S10S11S12S10
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2 days agoN14
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N12NW11N11N13N12NW12NW11NW10NW8NW6NW7NW7NW3SW3SW4CalmCalmS3S3

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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GOES 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.
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Wind Forecast for Sioux Falls, SD (6,6,7,8)
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Ground Weather Radar Station Sioux falls, SD
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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.