Saturday, August24, 2019 L-36.com


Marine Weather and Tides
Shipman, IL

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:21AMSunset 7:45PM Saturday August 24, 2019 7:12 PM CDT (00:12 UTC) Moonrise 11:59PMMoonset 1:57PM Illumination 30% Phase: Waning Crescent; Moon at 24 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 Shipman, IL
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location: 39.18, -90     debug


Area Discussion for - St. Louis, MO
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Fxus63 klsx 242343
afdlsx
area forecast discussion... Updated aviation
national weather service saint louis mo
643 pm cdt Sat aug 24 2019

Short term (through late Sunday night)
issued at 333 pm cdt Sat aug 24 2019
changes are coming over the next 36 hours across the bi-state
area. Most of the region has been experiencing pleasant conditions
featuring lower than normal humidity and below average temperatures
thanks to a dominant low level anticyclone centered in the
vicinity of the great lakes. The exception is portions of southern
mo which has seen showers at times. While the surface boundary
layer will remain under the influence of the big retreating
anticyclone and continued easterly flow through Sunday, its what
is going on upstairs which will bring changes to the sensible
weather.

Deeper moisture is not far removed from the CWA at this time
across the plains through lower ms valley and SW mo. A short wave
trof will continue to deepen across the plains and move eastward
tonight. In response, this moisture poised to our south and
southwest centered in the 5-10 kft layer will be transported back
into the CWA as flow aloft above the pbl becomes southerly. The
combination of this moisture return and attendant low level
waa thetae advection should result in increasing showers into
central, southeast, and east central mo overnight. Instability
will be slower to materialize and probably only isolated
thunderstorms in south central and southeast mo look plausible
through daybreak.

The aforementioned short wave trof and accompanying small
vorticity maxima will progress into the CWA on Sunday with
continued and increasing moisture and lift across the region. The
best coverage of showers and a few thunderstorms will be from
southeast and east central mo and into southwest il in the
morning, with a shift back to central mo during the afternoon.

Better instability should be present in the afternoon thus greater
potential for scattered storms. Scattered showers and storms
should accompany the short wave trof as it advances across the cwa
on Monday night. Temperatures on Sunday will be below average
owing to extensive cloud cover and periodic precipitation.

Glass

Long term (Monday through next Saturday)
issued at 333 pm cdt Sat aug 24 2019
the short wave trough will continue lifting out of the bi-state
region Monday morning. But with ample moisture in the low and mid
levels, a scattered showers and thunderstorms cannot be ruled out
Monday morning into early afternoon. The best chance of
precipitation for the coming week continues to be with the cold
front passage Monday into Tuesday morning as the axis of the upper
level trough swings through the mid mississippi river valley. There
is some uncertainty for the timing of the front, the GFS shows the
front reaching north central missouri during the late afternoon
Monday while the NAM is roughly 3-6 hours slower. This timing
disparity continues through Monday evening into Tuesday morning.

Precipitation will stay tied to the front as it moves through the
area during the morning on Tuesday and a surface high builds into
the region in its wake.

In the wake of the cold front the low and mid layers dry out, and
coupled with the surface high will keep Wednesday and Thursday
precipitation free. Moisture begins to ramp back up Friday, fed by
southerly flow tapping into moisture over the gulf. There is
evidence of another front moving across the area at the end of the
week that could tap into this moisture and produce scattered
thunderstorms.

The warmest temperatures are still expected Monday ahead of the cold
front with the return to near or slightly below normal temperatures
for the remainder of the week.

Mrm

Aviation (for the 00z tafs through 00z Sunday evening)
issued at 623 pm cdt Sat aug 24 2019
vfr conditions are expected overnight with MVFR CIGS moving into
central mo Sun morning. Scattered showers are expected Sun morning
just after sunrise, but are currently expected to remain south of
terminals. Chances increase during the afternoon hours. MVFR cigs
are expected to spread NE through the afternoon hours. Winds are
expected to remain generally easterly through the period.

Tilly

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
Litchfield Municipal Airport, IL17 mi37 minE 510.00 miFair70°F56°F62%1019.6 hPa
St. Louis Regional Airport, IL19 mi86 minENE 1010.00 miMostly Cloudy73°F59°F61%1019 hPa

Link to 5 minute data for K3LF

Wind History from 3LF (wind in knots)
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Last 24hrNE6NE5NE5NE5NE6NE11NE9NE6NE6NE6E6E6E6E8E7E6E9E9
G16
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1 day agoCalmCalmN3N5NE3NE3N5NE5NE6NE7NE4NE3NE3NE3NE4NE4NE5N7NE10E10
G15
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2 days agoCalmCalmNW4N4NW4W5CalmN5NE3CalmCalmCalmCalmCalmCalmCalmCalmN4CalmNE3CalmCalmCalmCalm

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for St. Louis, MO (20,4,5,8)
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Ground Weather Radar Station St. Louis, 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.