Thursday, May24, 2018

Marine Weather and Tides
Huey, IL

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 5:35AMSunset 8:09PM Thursday May 24, 2018 6:27 PM CDT (23:27 UTC) Moonrise 3:20PMMoonset 3:09AM Illumination 76% Phase: Waxing Gibbous; Moon at 10 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 Huey, IL
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location: 38.64, -89.3     debug

Area Discussion for - St. Louis, MO
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Fxus63 klsx 242312
area forecast discussion... Updated aviation
national weather service saint louis mo
612 pm cdt Thu may 24 2018

Short term (through Friday night)
issued at 350 pm cdt Thu may 24 2018
surface high pressure and upper ridging will gradually move east
late today into Friday. A north-south oriented boundary exists on
the western periphery of the high, clearly evident on visible
satellite imagery, in the form of diurnal CU and mid-level bkn
ceilings through central missouri. Expect a few widely scattered
showers or isolated thunderstorm through sunset with little
support for anything sustained. Most will stay dry, especially
along and east of the mississippi river.

A complex of thunderstorms is expected around a shortwave feature
that will push through the central plains and southwest missouri
overnight. While precipitation chances edge eastward into the cwa,
much of the support for organized convection will be over south
and southeast missouri Friday afternoon. The inhibiting factor
could be any remnant showers cloud cover during the morning hours,
limiting with short recovery time for afternoon instability.

Chances decrease further north and east of st. Louis. While
the airmass is unstable, shear is unimpressive, suggesting we
could see diurnally driven pulse showers storms that wane through
the evening hours.

Late Friday, a troughing extends well south and west from an
upper level low. Another shortwave feature over iowa likely places
the main focus for thunderstorms from central iowa through
central missouri. Plenty of instability builds ahead of the system
over central and northeast missouri with CAPE values around 3000
j kg, while shear is somewhat marginal at 25 kts. May see storms
produce some hail or gusty winds, but late day timing may keep
overall severe threat low.


Long term (Saturday through next Thursday)
issued at 350 pm cdt Thu may 24 2018
the main story in the long term will be above normal temperatures
and limited chances for thunderstorms over the memorial day

The boundary that drops in from the north late Friday is expected
to wash out in the region through early Saturday. Surface
dewpoints well into the 60s, possibly near 70 in some cases, could
make the weekend feel pretty sticky. While not a lot of support
exists for thunderstorms, cannot rule out an isolated afternoon
storm, especially south and east of the st. Louis metro.

The real key to the extended period will be in relation to the
tropical system over the gulf. Upper ridging develops and tries to
build in from the southwest through Monday, as surface high
pressure likely keeps us dry. The last few runs in model guidance
have wobbled a bit with track timing. However, solutions have come
into somewhat better agreement in holding the system just far
enough south to not be a hindrance for memorial day.

The surface high that keeps us dry Monday moves east for the
midweek period. The ecm keep a formidable closed upper low and
tracks it over the tennessee valley, while the GFS is somewhat
weaker, slower and further south with the system. Temperature
will remain above normal through at least Tuesday, possible
challenging some record highs. Depending on the exact track of the
low, temps may be tamed somewhat through midweek... Back into the


Aviation (for the 00z tafs through 00z Friday evening)
issued at 551 pm cdt Thu may 24 2018
a surface ridge centered over the ohio valley region southwest
into southeastern mo early this evening. Isolated showers storms
may impact cou early this evening. Diurnal cumulus clouds will
dissipate later this evening due to lose of daytime heating.

Mainly just high level cloudiness later this evening and
overnight. An appproaching upper level disturbance may bring
scattered showers and storms to cou as early as Friday morning,
but elsewhere the better chance of showers and storms should be
during Friday afternoon and early evening when instability will
be maximized. A light southeast surface wind can be expected
tonight with a south-southwest wind on Friday.

Specifics for kstl: a surface ridge centered over the ohio valley
region southwest into southeastern mo early this evening.

Diurnal cumulus clouds will dissipate later this evening due to
lose of daytime heating. Mainly just high level cloudiness later
this evening and overnight. An appproaching upper level
disturbance and diurnal instability should lead to scattered
showers and storms Friday afternoon and early evening. A light
southeast surface wind can be expected tonight with a south-
southwest wind on Friday.


Preliminary point temps pops
Saint louis 71 87 70 91 10 30 20 20
quincy 68 85 68 90 10 30 30 20
columbia 67 85 67 89 20 30 30 20
jefferson city 68 86 67 89 20 30 20 20
salem 65 84 67 89 5 20 20 20
farmington 66 83 65 88 10 40 20 20

Lsx watches warnings advisories
Mo... None.

Il... None.

Wfo lsx

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Centralia Municipal Airport, IL14 mi33 minE 310.00 miFair88°F56°F35%1017.3 hPa
Salem, Salem-Leckrone Airport, IL18 mi33 minE 410.00 miFair88°F52°F30%1017.6 hPa

Wind History from ENL (wind in knots)
Last 24hrE3CalmCalmCalmCalmCalmCalmCalmE3E3E4CalmCalmSE7SE8SE4CalmE6CalmSE3SE3N3SE3SE4
1 day agoNW3CalmCalmCalmN4CalmN3NE3CalmNE3CalmNE5E5E4E6E4N4N6N9NE7NE4NE7E6NE6
2 days agoS4S4S3S6S4S5S3CalmCalmSE3CalmW3W4NW4W4W8W8W5N10NW6N6NW10N3NW6

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 Midwest    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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for St. Louis, MO (19,4,5,8)
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Ground Weather Radar Station Evansville, IN
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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.