Monday, June26, 2017

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 5:53AMSunset 8:49PM Monday June 26, 2017 7:19 AM CDT (12:19 UTC) Moonrise 7:51AMMoonset 10:06PM Illumination 6% Phase: Waxing Crescent; Moon at 2 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 261142
area forecast discussion
national weather service kansas city pleasant hill mo
642 am cdt Mon jun 26 2017

Issued at 313 am cdt Mon jun 26 2017
scattered shwrs beginning to develop across east-central kansas
this morning is modest isentropic ascent and weak frontogenesis
interact with an area of low-level moisture convergence. So far
this activity has been in shwr form, and considering the lack of
any appreciable instability this morning per latest SPC meso page,
we expect this trend to continue through sunrise. Further to our
north, precip developing nicely across portions of iowa and
nebraska as the next inbound shortwave dives southeast towards our
area. As a result, expect precip to gradually expand in coverage
as the wave inches closer to our region, and have increased pops
up along the iowa border this morning to account for this
development. Later today, fcst models continue to show additional
activity developing across northern missouri as a weak surface
boundary starts moving into the region from the north. Inspection
of several fcst soundings again yields very weak instability this
afternoon with MLCAPE values generally less than 800 joules. As
such, expect any developing storm activity along this feature to
remain below severe thresholds with activity gradually coming to
an end this evening from north to south. Afternoon highs today
will remain below normal, with mid & upper 70s expected. It
shouldn't be a washout but shwrs isolated storms will definitely
be on the radar through a good portion of the day.

High pressure to temporarily build south into our region tonight
with dry conditions expected through much of Tuesday and Tuesday
night. Southerly winds will begin to become re-established later
in the day on Tuesday as high pressure begins sliding off to our
east and pressure falls occur across the central and northern high
plains. As a result, Tuesday's highs will be a few degrees warmer
than today's, with highs topping out in the lower 80s.

Big changes on the way by Wednesday as a very unsettled weather
pattern develops over the nation's midsection. Main culprit
continues to be a strong ridge of high pressure across the north-
central atlantic, which will lead to a general blocking pattern
upstream across north america. As this occurs, a trough of low
pressure is expected to descend into southern canada & the
northern plains, with this feature having little chance for
eastward progression until the end of the work week. Meanwhile
closer to the surface, western atlantic high pressure combined
with a trough of low pressure across the great plains will lead to
healthy return flow up through the upper miss rvr vly. Low mid 70
degree dewpoints combined with passing shortwaves and eventually
a stalled frontal boundary will lead to several rounds of showers
and storms through the end of the week, with the heavy rain threat
looking more ominous with each passing model run. By week's end,
several locations could be looking at rainfall totals in excess of
2-4 inches, especially across far northern missouri.

Upper low is finally able to start moving east later in the day
on Friday which should drag a trialing cold front through our
area. This will result in return to dry weather for through
Saturday, with rain chances again increasing by Sunday as another
front stalls across our region.

Aviation (for the 12z tafs through 12z Tuesday morning)
issued at 641 am cdt Mon jun 26 2017
a busy weather day is expected across the region as a disturbance
and associated cold front lead to scattered shwrs and isolated
storms. Activity currently up along the iowa border is forecast to
settle to the southeast with time, likely missing area forecast
sites. Additional activity is expected to track southeast from
south-central nebraska later this morning, with best timing
suggesting possible impacts as early as 16-17 at stj, with steady
southward progression expected at remaining kc area terminals
through the early to mid afternoon. With any storms that impact
airfields, short duration reductions to MVFR or ifr visibilities
will be possible. Activity should quickly clear by late
afternoon early evening from north to south with dry conditions
expected through the overnight. The only other concern going
forward will be for possible fog development at stj after 6z,
however confidence this far out remains too low for a mention at
this time.

Eax watches warnings advisories
Ks... None.

Mo... None.

Discussion... 32
aviation... 32

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Olathe, Johnson County Executive Airport, KS9 mi26 minS 310.00 miFair53°F53°F100%1022.4 hPa
Kansas City, Kansas City Downtown Airport, MO11 mi25 minSSW 310.00 miFair58°F55°F90%1021.8 hPa
Olathe, New Century Aircenter, KS14 mi26 minS 410.00 miFair54°F54°F100%1022.5 hPa
Lee's Summit, Lee's Summit Municipal Airport, MO17 mi26 minS 410.00 miFair56°F53°F90%1022.1 hPa
Kansas City, Kansas City International Airport, MO24 mi26 minS 410.00 miPartly Cloudy59°F57°F93%1021.6 hPa

Wind History from OJC (wind in knots)
Last 24hrNW7NW10N8N6NE116N6NW10N8N7N5W3NW3NW3NW3CalmCalmNW4CalmCalmCalmCalmS3S3
1 day agoN7N8N9N11N9N10NW8N6N10N11
2 days agoNE6N10N14

Tide / Current Tables for
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Weather Map and Satellite Images
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Weather Map
IR Satellite Image from GEOS

GOES Local Image of Midwest    EDIT

Wind Forecast for Kansas City/Pleasant Hill, MO (8,2,3,4)
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Ground Weather Radar Station Kansas City/Pleasant Hill, MO
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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 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 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.