Saturday, April20, 2019 L-36.com


Marine Weather and Tides
Kane, IL

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:15AMSunset 7:43PM Saturday April 20, 2019 11:58 AM CDT (16:58 UTC) Moonrise 8:18PMMoonset 6:21AM Illumination 99% Phase: Waning Gibbous; Moon at 16 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 Kane, IL
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location: 39.18, -90.42     debug


Area Discussion for - St. Louis, MO
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Fxus63 klsx 201125
afdlsx
area forecast discussion... Updated aviation
national weather service saint louis mo
625 am cdt Sat apr 20 2019

Short term (through late Sunday afternoon)
issued at 330 am cdt Sat apr 20 2019
the cutoff upper low responsible for the cool and wet conditions of
the last few days will continue to push east as upper level ridging
becomes established across the mid-mississippi valley. Good
consensus amongst guidance showing dry conditions through the depth
of the atmosphere through Sunday morning, before the GFS and euro
begin to show some jet-level moisture pushing into the region on
Sunday. A surface ridge will move overhead today, before moving to
the east of the area on Sunday.

The surface ridge will help reduce the NW winds today and gradually
swing them around to the west. Despite generally wnw winds, clear
skies should allow for temps to climb into the the upper 60s and low
70s. As the surface ridge moves to our east on Sunday, winds across
the region will be out of the south. This will result in
considerable warm, moist advection, which despite the potential for
some high clouds pushing into the region, will allow for high
temperatures to push into the upper 70s and low 80s.

The only potential hazard during this period is the development of
some marginal fire weather conditions this afternoon. Today's clear
skies will allow for plenty of boundary layer mixing resulting in
relatively dry conditions across the area. This mixing could be
offset somewhat in our west where some surface moisture may get
advected back into the region as winds turn westerly, but from the
mississippi river and east, the mixing will help drop rh values in
the mid to upper 20s this afternoon. At that point, sustained winds
will be around 15mph with gusts up to 25mph, which may pose some
fire weather threat. However, given the ample rain we've seen the
last few days, fuel moisture is rather high, hence only marginal
fire weather conditions.

Bsh

Long term (Sunday night through Friday)
issued at 330 am cdt Sat apr 20 2019
the upper level ridge axis will move east and into the western ohio
valley on Sunday night. In its wake, flow aloft will become
southwesterly allowing for the eastward spread of moderately steep
mid level lapse rates across the cwa, as well as bringing a weak
impulse into the region during the late night hours. The combination
of these factors along with a strengthening southwesterly LLJ and
attendant moisture transport and convergence will result in a chance
of elevated showers and thunderstorms for central and northeast mo
from 06z Monday into the late morning hours on Monday. By midday
Monday the initial disturbance will be exiting the area, the llj
will be backing and we will be getting into a less favorable period
for elevated storms. Thinning clouds should allow for decent heating
with highs in the upper 70s to lower 80s, which will contribute to
the development of weak surface-based instability. The region which
would have the best potential for afternoon showers and storms would
be northeast mo into west central il within a corridor ahead of
an approaching cold front, albeit this potential looks rather low
at this time as the environment looks largely capped. Low chance
of showers and thunderstorms will continue on Monday night,
generally in a southwest-northeast oriented zone centered through
northeast mo where the LLJ should reside and the weak cold front
will be moving.

From Tuesday through Thursday the GFS and ecwmf begin to diverge on
details of the forecast. The differences seem to stem from the
handling of energy trofs within the northern and southern streams of
a split flow pattern and resultant southeastward push of the cold
front into and through the cwa. The GFS is generally more
progressive and positively tilted with an initial northern stream
trof Tuesday into Tuesday night and then the southern stream
southwestern u.S. Trof Wednesday into Thursday. It has the front
through the CWA by Wednesday evening, with dry conditions and
slightly cooler temps thereafter. Alternatively the ECMWF lacks the
prominent reflection of the northern stream trof and has a slower
and more neutrally tilted southern stream trof Wednesday into
Thursday, which slows the front and delays FROPA through the cwa
until late Thursday. Present thinking is Tuesday, especially
Tuesday afternoon, and then again on Wednesday will be the periods
with the greatest chances for showers and thunderstorms, with
less confidence beyond Wednesday afternoon. Surface high pressure
and dry conditions do seem to be the consensus for Friday.

Glass

Aviation (for the 12z tafs through 12z Sunday morning)
issued at 623 am cdt Sat apr 20 2019
vfr conditions will prevail through the forecast period. Only
forecast concerns are with winds, which should pick up within the
next few hours. Gusts are expected to be highest across il, where
they will top out around 25 mph later this morning. Winds are then
expected to gradually taper this afternoon before going variable
overnight.

Specifics for kstl:
none.

Bsh

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
St. Charles, St. Charles County Smartt Airport, MO17 mi64 minN 1410.00 miFair59°F28°F31%1013.4 hPa

Wind History from SET (wind in knots)
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Last 24hrN19
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N12N8N10N12N11
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1 day agoNW13
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NW12NW10NW8N9NW6NW6N5NW4N7N8NE8N9N11N9N12N14
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2 days agoS11
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S8E6S7W13W5W9NW13NW13NW10
G21
NW11

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for St. Louis, MO (12,3,4,5)
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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.