Tuesday, December18, 2018 L-36.com


Marine Weather and Tides
Nevada, IA

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 7:36AMSunset 4:46PM Tuesday December 18, 2018 4:52 AM CST (10:52 UTC) Moonrise 2:14PMMoonset 2:46AM Illumination 83% Phase: Waxing Gibbous; Moon at 11 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 Nevada, IA
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location: 42.02, -93.46     debug


Area Discussion for - Des Moines, IA
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Fxus63 kdmx 180938
afddmx
area forecast discussion
national weather service des moines ia
338 am cst Tue dec 18 2018

Discussion today through Monday
issued at 338 am cst Tue dec 18 2018
upper flow remains conducive to above normal temperatures in the
short term with main polar jet remaining north of iowa. There will
be some amplification in the pattern over the midwest during the
next 48 hours, however by the time cooler air becomes entrenched
within the system, the threat for precipitation will be nearly
over. For today, strong thermal ridging, decent surface winds and
sunshine will allow temperatures to climb nicely. Have stayed
toward the warm end of guidance for highs given the setup for
decent warming. However, there is still some influence of snow
cover in the far west and north which will hold temperatures a few
degrees cooler.

A push of higher theta-e air along with increased forcing this
evening will lead to clouds development across the state late this
afternoon into the evening. Initially, a few sprinkles will be
possible across the southwest into central iowa by later this
evening. As the boundary layer moistens overnight and lift
progresses northeast, the threat for drizzle sprinkles will spread
into northeast areas of the forecast area. Precipitation is
expected to remain mostly liquid with warm advection and cloud
cover holding readings just above freezing. A few additional
rounds of lift will pass through the state Wednesday into
Wednesday evening, but with limited moisture overall precipitation
will be very light and scattered. As cold air arrives on backside
of the system late Wednesday into Wednesday evening, there may be
a brief window of freezing drizzle in the north and northeast,
however little to no impacts are expected as any precipitation
would be quite short in duration.

There are no large organized system expected to affect the state
through the weekend into Monday but a few quick systems may graze
the area into early next week. Temperatures are also expected to
be more seasonable into the weekend, although still above normal
for this time of the year. Both extended models are beginning to
show a more active period into next week with a large trof carving
into the western united states. Still much too early to determine
impacts across iowa but this will need to be watch closely as it
may end up impacting holiday travel between christmas and new
years.

Aviation for the 06z tafs through 06z Tuesday night
issued at 1111 pm cst Mon dec 17 2018
low level wind shear will develop over the northern iowa terminals
in the next few hours and continue into Tuesday morning as light
surface winds from the south are topped by strong winds from the
southwest at fl020. Otherwise,VFR will prevail as high clouds
stream over iowa on Tuesday. After 00z, low ceilings and
visibilities due to fog are expected to develop with restrictions
toward or just after 6z Wednesday becoming widespread.

Dmx watches warnings advisories None.

Discussion... Cogil
aviation... Ansorge


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ames, Ames Municipal Airport, IA9 mi60 minSE 410.00 miFair25°F21°F88%1019.4 hPa
Boone Municipal, IA21 mi58 minS 810.00 miFair30°F28°F93%1017.9 hPa
Ankeny Regional Airport, IA24 mi58 minSE 410.00 miFair28°F24°F86%1019.3 hPa

Wind History from AMW (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmSE3SE5S7S5S7SE4E4SE5SE3SE5SE7SE6SE7SE6SE4CalmSE4SE4
1 day agoW4W3CalmW3--NW7NW9NW11NW11NW9NW11NW8NW9W7NW6W4NW6W5NW6NW6NW4CalmW3Calm
2 days agoCalmCalmCalmN3Calm----S4SW3S7S5S3S3CalmSE4SE5S4SE4CalmS3SW5S3CalmW5

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 Des Moines, IA (5,6,7,8)
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Ground Weather Radar Station Des Moines, IA
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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.