Monday, September25, 2017 L-36.com


Marine Weather and Tides
Merriam, KS

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 7:11PM Monday September 25, 2017 7:02 PM CDT (00:02 UTC) Moonrise 11:19AMMoonset 9:43PM Illumination 28% Phase: Waxing Crescent; Moon at 5 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 Merriam, KS
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location: 38.98, -94.7     debug


Area Discussion for - Kansas City/Pleasant Hill, MO
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Fxus63 keax 252323
afdeax
area forecast discussion
national weather service kansas city pleasant hill mo
623 pm cdt Mon sep 25 2017

Discussion
Issued at 144 pm cdt Mon sep 25 2017
an active pattern is slowly working its way closer to the local area
and will bring about a couple of changes that will affect both near-
term and long-term conditions. The first of which will be in the
form of precipitation chances ahead of a cold front, expected to
cross through northwest missouri this evening, steadily pushing
through the remainder of the CWA through Tuesday morning.

Scattered thunderstorms have already developed ahead of the
boundary in northwest missouri as of early Monday afternoon,
though will be slow to move eastward through the remainder of the
afternoon. Looking aloft, a broad upper level trough situated
over the western CONUS will eject a shortwave trough into the
northern plains today, while the main trough eventually forms a
closed low over the southwest by the mid-week. Once the shortwave
trough begins to push further eastward the stalled cold front over
southeastern nebraska will gain momentum and approach northwest
missouri this evening. Showers and thunderstorms are expected to
continue ahead of and along the cold front as the boundary pushes
through central missouri during the evening and overnight hours.

With that said, low level moisture availability may undergo a
slight weakening trend, thus limiting prolonged precipitation
chances for areas east of the i-35 corridor. Rain totals will
generally remain near 0.25" to 0.5" across eastern kansas to
central missouri, with amounts possibly approaching 1" near
extreme northwest missouri. Still expecting sub-severe storms
along the front, considering minor instability by the time the
boundary arrives and weak wind fields aloft. Off and on rain
chances will continue through Tuesday as the front slowly makes
its way through central missouri, while extensive low level cloud
cover is likely behind the frontal boundary until at least
Wednesday morning.

By that time, a much cooler air mass will have settled into place,
bringing slightly below normal temperatures into the region.

Expecting afternoon highs to top out in the low to perhaps mid 70s
through the remainder of the week, while overnight lows will
generally dip down to the low 50s. A secondary trailing cold front
may clip the CWA Friday night, which could send overnight temps
into the mid to upper 40s, particularly for areas north of the
missouri river.

By the late weekend, the active pattern looks to resume with another
chance of showers storms possible, though currently there is both
spatial and temporal discrepancy with the ec and GFS solutions. Have
thus maintained overall low pops during this time to account for
the uncertainty.

Aviation (for the 00z tafs through 00z Tuesday evening)
issued at 623 pm cdt Mon sep 25 2017
vfr conditions are expected to deteriorate late tonight and
tomorrow morning in low MVFR or ifr ceilings behind a much
anticipated cold front. That front is on the cusp of pushing
through kmci and should continue to slowly sink southward through
the night. Precipitation chances will increase overnight as post-
frontal showers and occasional storms eventually spread eastward.

The lower ceilings are 100 or so miles behind the front, which
puts them in southeastern NE currently. These will slide southward
with time as well and should move into the area around sunrise
tomorrow and later. Winds behind the front will turn northerly
but should remain in the 5 to 10 kt range. Have timed the front
into mkc and ixd soon after forecast issuance but the front could
slow down and or waft around, fluctuating the winds at these
sites overnight. Regardless, winds should be 5 to 10 kts on either
side of the front.

Eax watches warnings advisories
Ks... None.

Mo... None.

Discussion... Welsh
aviation... Cdb


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Olathe, Johnson County Executive Airport, KS9 mi70 minS 910.00 miFair82°F66°F58%1010.3 hPa
Kansas City, Kansas City Downtown Airport, MO11 mi69 minS 610.00 miFair86°F66°F51%1009.9 hPa
Olathe, New Century Aircenter, KS14 mi70 minS 710.00 miFair83°F64°F55%1010.3 hPa
Lee's Summit, Lee's Summit Municipal Airport, MO17 mi70 minS 1110.00 miFair85°F64°F50%1010.7 hPa
Kansas City, Kansas City International Airport, MO24 mi70 minS 510.00 miMostly Cloudy82°F68°F63%1010.4 hPa

Wind History from OJC (wind in knots)
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Last 24hr--SE4SE5S8S6S5S4S4S3SE3S4SE5S4S4S7S10S8S9S10
G18
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1 day agoE4CalmSE4SE3SE4SE5SE5SE5SE7S5S4S3SE4S7S7S8SW10S7SE8S9S8S9S5S4
2 days agoS7S7S7S6SE3SE5CalmSE3SE3SE3S3SE3SE5S4S8SW8S8S6S12S9S10S10S8SE5

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
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Midwest    EDIT
Geos

Wind Forecast for Kansas City/Pleasant Hill, MO (20,4,5,8)
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Ground Weather Radar Station Kansas City/Pleasant Hill, MO
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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.