Tuesday, April25, 2017 L-36.com


Marine Weather and Tides
Merriam, KS

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:25AMSunset 8:07PM Tuesday April 25, 2017 1:28 PM CDT (18:28 UTC) Moonrise 5:13AMMoonset 6:18PM Illumination 0% Phase: New Moon; Moon at 29 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 251742
afdeax
area forecast discussion
national weather service kansas city/pleasant hill mo
1242 pm cdt Tue apr 25 2017

Discussion
Issued at 327 am cdt Tue apr 25 2017
today will be another fairly windy day, as a surface low in
western ks approaches eastern ks/western mo. At the upper levels,
a trough is deepening over the western conus, ejecting energy over
the central plains. These features in conjunction with an 850 mb
low- level jet are already producing some light precipitation in
eastern ks and ne. This will move northeast, clipping northeast ks
and northwestern mo. By late morning, everyone should be dry.

Warm air advection will increase this afternoon, helping
temperatures reach the 70s and even low 80s in the southern half
of ks/mo and eastern half of mo.

Our attention then turns to the storm and severe weather chances
this evening into the overnight hours for eastern ks and
western/central mo. The WAA will help create sufficient
instability across the entire area (1500-2000 j/kg of MUCAPE and
sbcape), but a moderate cap will be in place for most of the day
until the cold front associated with the system enters mo/ks and
breaks the cap this evening. Moisture will not be lacking as
dewpoints climb into the upper 50s, and low 60s. Finally, the 0-6
km shear will also be sufficient, with values between 50 and 60
kts. The shear vectors are mostly parallel to the cold front;
therefore, some discrete cells may develop initially but a linear
system will be the dominate storm mode. High res models are
indicating convective initiation should start around 7 pm along
i-35 in eastern ks and move east into mo. The primary threats
today are large hail and damaging winds. The tornado threat can't
be completely ruled out, but is minimal at this time. Once the
cold front moves through, the severe weather threat will diminish
but post-frontal showers and a few non-severe storms will be
likely, especially south and east of i-35. They should last
through most of the day Wednesday.

We will see a break from the rain Thursday, but on and off
showers and storms return Friday through Sunday. A broad trough
over the northern rockies will begin to deepen while a surface low
will develop over the southern rockies. This system will
eventually move into the central plains creating a surface
boundary that will be the focal point for the weekend showers and
storms. Right now, it appears to settle south of i-70, producing
several round of fairly heavy rain. There is plenty of time though
for the location and timing for this system to change.

The weekend system should exit the area by Monday as a surface
high settles in behind it. This is short-lived though as another
rain maker sets up for Tuesday/Wednesday.

Aviation (for the 18z tafs through 18z Wednesday afternoon)
issued at 1235 pm cdt Tue apr 25 2017
expecting a round of thunderstorms to move into the terminals,
mainly kmci/kmkc/kixd. Kstj looks to remain north of the more
robust thunderstorm activity, but should get some post frontal
rain through at least Wednesday morning. Expect ceilings to fall
to low end MVFR or ifr by early Wed morning. Expect gradual
improvement through the day on Wednesday morning into the
afternoon.

Eax watches/warnings/advisories
Ks... None.

Mo... None.

Discussion... Grana
aviation... Leighton


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Olathe, Johnson County Executive Airport, KS9 mi36 minS 10 G 1610.00 miOvercast70°F55°F61%995.2 hPa
Kansas City, Kansas City Downtown Airport, MO11 mi35 minSSW 1210.00 miFair73°F54°F51%995.2 hPa
Olathe, New Century Aircenter, KS14 mi36 minS 10 G 1910.00 miMostly Cloudy71°F55°F57%995.3 hPa
Lee's Summit, Lee's Summit Municipal Airport, MO17 mi36 minSSW 12 G 1710.00 miPartly Cloudy72°F54°F53%995.6 hPa
Kansas City, Kansas City International Airport, MO24 mi36 minS 910.00 miOvercast70°F53°F55%995.4 hPa

Wind History from OJC (wind in knots)
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Last 24hrS16
G22
SE20
G28
S18
G27
S13
G22
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G25
S7S6S6S8S6S7S7S9S8S9S7S6SE6SE7SE10S15
G21
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G19
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G19
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G16
1 day agoCalmCalmCalm3S4S7S3SE4S3SE3CalmCalmS3CalmS3S3S4SE5S10S11
G20
S24
G30
S18
G29
S18
G28
S22
G28
2 days agoNE13
G20
NE18
G24
NE14
G21
N20
G28
N18
G26
N11NE9N6N5N4N4N4N4N4N6N5N6N5N5NE3NE3SE3CalmCalm

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
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IR Satellite Image from GEOS
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GOES Local Image of Midwest    EDIT
Geos

Wind Forecast for Kansas City/Pleasant Hill, MO (14,3,4,5)
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Ground Weather Radar Station Kansas City/Pleasant Hill, MO
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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.