Sunday, February17, 2019 L-36.com


Marine Weather and Tides
Vermillion, SD

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 7:17AMSunset 6:01PM Sunday February 17, 2019 9:43 PM CST (03:43 UTC) Moonrise 3:46PMMoonset 6:01AM Illumination 98% 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 Vermillion, SD
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location: 42.87, -97     debug


Area Discussion for - Sioux Falls, SD
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Fxus63 kfsd 172329
afdfsd
area forecast discussion
national weather service sioux falls sd
529 pm cst Sun feb 17 2019

Short term (this evening through Monday)
issued at 320 pm cst Sun feb 17 2019
light snow has shown signs of diminishing across the area this
afternoon, but the expectation is that light snow or flurries will
linger at least through the early night time hours as a vort tail
behind the exiting upper level low pulls across the region.

Additional accumulations will generally be a half an inch or less.

Colder air will begin to filter in behind the exiting system, so
temperatures will be a little cooler tonight - dropping mainly
into the single digits.

Canadian high pressure builds into the region on Monday, keeping
cold temperatures across the area. Highs will be in the teens.

Long term (Monday night through Sunday)
issued at 320 pm cst Sun feb 17 2019
the active weather pattern continues on Tuesday as another upper
level trough tracks into the northern plains. There are still some
differences among the models with regard to both upper and surface
level features, though there is a fairly good consensus on the
potential for moderate snow accumulations over our area for Tuesday
afternoon into Wednesday afternoon. As in the recent event, winds
look to be relatively light so blowing snow should not be an issue.

Although there will be some gradual moderation in temperatures for
the remainder of the week, readings still look to be below normal
for this time of year. And once again, snow looks to move back into
the area for Thursday night through Friday. Although there are model
differences, there will be another potential for light to moderate
snowfall accumulation across the area.

Aviation (for the 00z tafs through 00z Monday evening)
issued at 527 pm cst Sun feb 17 2019
periodic light snows will continue into the overnight hours.

Ceilings will vary considerably through the night, ranging from
lowVFR to high ifr in a few spots. Visibility may temporarily
drop near 1 mile at times, but should prevail around 3 to 4 miles
in most locations.

Ceilings may slowly improve through the day on Monday.

Fsd watches warnings advisories
Sd... Winter weather advisory until 6 pm cst this evening for
sdz038>040-050-052>071.

Mn... Winter weather advisory until 6 pm cst this evening for mnz098.

Winter weather advisory until 9 pm cst this evening for mnz071-
072-080-081-089-090-097.

Ia... Winter weather advisory until 6 pm cst this evening for
iaz001>003-012>014-020>022-031-032.

Ne... Winter weather advisory until 6 pm cst this evening for nez013-
014.

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


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Yankton, Chan Gurney Municipal Airport, SD20 mi1.8 hrsNW 152.00 miLight Snow Fog/Mist14°F10°F88%1025.4 hPa

Wind History from YKN (wind in knots)
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Last 24hrE7NE7NE8NE6NE9NE8NE6N5N7N6N7N7N9N10N10NW11NW11NW12NW13NW17NW14NW16NW14NW15
1 day agoCalmNE4CalmE5E3E5E3E4E7E6E3E3E6E9E8SE7SE13E9E10E11E10E12E9E9
2 days agoNW13NW14NW13NW13NW8NW12NW9NW15NW9NW8NW7N7NW8NW7NW5N6CalmNW4N5N4NE7N4N4N3

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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wmap_A
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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Sioux Falls, SD (22,6,7,8)
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Ground Weather Radar Station Sioux falls, SD
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weather_mapweather_map weather_map

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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.