Tuesday, June19, 2018 L-36.com


Marine Weather and Tides
Nevada, IA

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 5:37AMSunset 8:55PM Tuesday June 19, 2018 9:11 AM CDT (14:11 UTC) Moonrise 11:21AMMoonset 12:00AM Illumination 36% Phase: Waxing Crescent; Moon at 6 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 191303
afddmx
area forecast discussion
national weather service des moines ia
803 am cdt Tue jun 19 2018

Updated for 12z aviation discussion...

Short term early this morning
issued at 415 am cdt Tue jun 19 2018
storms gradually diminishing as they progress east early this
morning. Mrms and dual pol precipitation rate still depict a few
small pockets of 2-3 inch hour rainfall rates moving into the dsm
and ames metro areas. However, the storm is progressive enough and
the coverage of the heaviest rainfall rates remains very isolated
that not overly concerned of flash flooding this morning. Cannot
completely rule out some street flooding as this storm transitions
through the metro. The hrrr seems to have the best handle of the
current radar trends and confident these storms should diminish by
12-13z this morning over the eastern portion of the cwa.

Long term today through Monday
issued at 415 am cdt Tue jun 19 2018
fairly active period to begin the forecast period through the end of
the week, with precipitation chances pretty much throughout the
forecast period. Expect much of today to be fairly dry across the
forecast area with some lingering storms across far southern and
potentially northern iowa today. Some isolated to scattered
redevelopment possible late this afternoon into this evening along
and near a stalled out boundary. Majority of the activity expected
to develop along and north of a sfc trough axis stretching across
sw central ks into eastern NE SW ia, with this activity expected to
slide eastward with additional development across iowa late tonight.

Moisture transport to become oriented into central iowa by 06z
tonight, with high freezing levels and efficient rain production
expected. Pwats into the 2 inch range again with linear wind
profiles and weak shear. Corfidi vectors also indicating slow storm
motions, all setting the stage for the potential for additional
heavy rainfall across portions of central and southern iowa through
early Thursday. Widespread 1 to 2+ inch rainfall anticipated through
the next several days with locally higher amounts of 3-4+ inches
likely in spots. Therefore expect additional threats for flash
flooding, with the areal coverage becoming more certain later today
into Wednesday. Therefore will allow later shifts to assess the need
for any additional flash flood watch headlines. As for the current
watch, have shortened the timeframe ending it at 8am for the western
portion of the watch area, and canceling the eastern portion of
the watch. Some rainfall still possible in the east, but threat
for heavy rainfall has ended. Still some potential for heavy
rainfall in the western southern portions of the watch area, but
that threat is expected to diminish over the next few hours as
well as rain rates have been trending down some over the past
hour. Therefore may even be able to cancel the watch earlier than
8 am, and will monitor between now and then.

Otherwise upper trough will continue rotate around the region and
become closed off over the state with cooler conditions and
precipitation chances continuing into Friday. That system to then
move off to the east into the weekend with continued cyclonic flow
in place through the weekend into early next week. Hard to decipher
any specific chances so stuck with guidance pops with a smattering
of pops through the weekend. Greater chances then exist into early
next week as return flow sets up as the surface high that had been
skirting the eastern forecast area slides further south and east and
low pressure develops across the plains states as an upper trough
moves through the central us. Therefore will have to monitor this
time period for the potential for additional rainfall and storm
potential mainly toward Tuesday next week. As for temperatures
through the forecast period, today should turn up about 5 to 10
degrees cooler than Monday with a continued trend near normal
to slightly below normal through the forecast period.

Aviation for the 12z tafs through 12z Wednesday morning
issued at 802 am cdt Tue jun 19 2018
kmcw to be dealing with ifr MVFR through much of today. Will be
adjusting to timing of thunder at the remaining sites. Non-
thunderstorm winds should be less than 10 kts this TAF period.

Visibility will also need to be fine-tuned during periods of
heavier rain, especially at kfod.

Dmx watches warnings advisories
None.

Short term... Podrazik
long term... Beerends
aviation...



Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ames, Ames Municipal Airport, IA9 mi18 minN 05.00 miLight Rain Fog/Mist72°F70°F94%1013.5 hPa
Boone Municipal, IA21 mi16 minN 010.00 miMostly Cloudy70°F69°F100%1014.9 hPa
Ankeny Regional Airport, IA24 mi16 minN 08.00 miLight Rain72°F69°F94%1014.2 hPa

Wind History from AMW (wind in knots)
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Last 24hrSW9SW11
G17
SW8SW10SW7SW10S8S8NW18
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CalmNE3N8CalmW5SE3CalmSW8SE8CalmCalmCalmCalm
1 day agoSW14
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2 days agoS9S14
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S14S15
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S8SE7SE6SE7S7S8S10S7S8SE7S7S8S10SW12
G21

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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Des Moines, IA (10,2,3,4)
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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.