Saturday, March25, 2017 L-36.com


Marine Weather and Tides
Huey, IL

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 6:48AMSunset 7:14PM Saturday March 25, 2017 6:29 PM CDT (23:29 UTC) Moonrise 5:31AMMoonset 4:45PM Illumination 3% Phase: Waning Crescent; Moon at 28 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 252037
afdlsx
area forecast discussion
national weather service saint louis mo
337 pm cdt Sat mar 25 2017

Short term (through late Sunday afternoon)
issued at 334 pm cdt Sat mar 25 2017
vertically stacked system will continue to make very slow progress
to the north across forecast area tonight. As of 19z, the system was
still centered over southwestern mo, just east of sgf. Our local wrf
seems to have the best handle on location and speed of this system.

It does not move out of forecast area til around 15z Sunday. So for
this evening, will still see showers and isolated/scattered
thunderstorms develop, though best chances of more vigorous activity
firing will be over south central mo where there have been some
breaks in the cloud cover, steeper lapse rates and increasing
instability, then track to the north through forecast area. Isolated
strong to severe storms are possible through early this evening.

By 06z Sunday, thunderstorm chances to taper off, but showers to
persist in wrap around clouds on back side of system. Then showers
to taper off from southwest to northeast by midday Sunday.

Otherwise, drier and cooler weather to persist through afternoon
hours. Highs will be in the upper 50s to mid 60s.

Byrd

Long term (Sunday night through next Saturday)
issued at 334 pm cdt Sat mar 25 2017
a rather active pattern is expected for the upcoming week. A
pronouced southern stream upper trof will advance through the
southern/central plains Sunday night, then weaken as it moves
through the lower/mid ms valley region on Monday. Large scale
ascent with this trof will spread into the region Monday night,
along with lift and moisture transport/waa via a southwesterly
llj, and should promote the east/northeast development/spread of
showers through central and southeast mo. Things begin to get a
bit more interesting on Monday, as a surface low associated with
the advancing upper trof tracks across southern mo and southern
il. This motion will allow the warm front to retreat nortward and
bring an expanding warm sector to roughly the southeast 1/3-1/2 of
the cwa. Cooling aloft/steeping mid level lapse rates associated
with upper trof along with low level moisture & warm thermal
advection are forecast to result in decent instability during the
afternoon with scape from 700-1400 j/kg. The instability and
modest deep layer shear will support a threat of severe thunderstorms
across southeast mo and southern il along and ahead of the surface
low and attendant cold front. Otherwise large scale forcing/lift
will result in fairly widespread precipitation during the
morning/early afternoon. Precipitation should primarily be confined
to southeast mo and southern il during the evening and should
wind down by midnight as the system moves to the east.

Tuesday/Tuesday night look rather tranquil but mostly cloudy with
low level moisture/clouds trapped within the surface/lower trop
ridge.

During the later part of the week yet another southern stream upper
low and trof will be impacting the region. There is some disagreement
between the GFS and ECMWF on the structure and speed of the trof,
and at this time the ECMWF is the more preferred solution. Backing
low-mid level flow ahead of the trof will result in moisture
transport back into the area as early as Wednesday, and the
development of showers. As the upper system progresses into the
plains Wednesday night and into the ms valley on Thursday, increasing
lift, moisture and steepening lapse rates will result in more
widespread precipitation including thunderstorms. This system will
exit by late Friday and then yet another system is on the horizon
on Sunday night.

Glass

Aviation (for the 18z tafs through 18z Sunday afternoon)
issued at 103 pm cdt Sat mar 25 2017
surface low just east of sgf will continue to slowly lift
northward through tonight. So dealing with MVFR/ifr CIGS ahead of
system over TAF sites. Still expecting CIGS to lift to low end
vfr through the afternoon hours, before tanking once again to
MVFR/ifr late this evening as system exits region. As for
precipitation chances, hard to nail down coverage and timing, so
kept vicinity thunder mention til things develop and amend
accordingly. Other main issues is the winds, southeast winds to
eventually veer to the south then southwest and west as low lifts
through region.

Specifics for kstl:
surface low just east of sgf will continue to slowly lift
northward through tonight. So dealing with MVFR CIGS ahead of
system over metro area. Still expecting CIGS to lift to low end
vfr by 22z, before tanking once again to MVFR/ifr after 09z Sunday
as system exits region. As for precipitation chances, hard to nail
down coverage and timing, so kept vicinity thunder mention til
things develop and amend accordingly. Precipitation to taper off
by 09z Sunday. Other main issues is the winds, southeast to south
winds to eventually veer to the southwest as low lifts through
region.

Byrd

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 mi34 minSSE 107.00 miLight Rain61°F60°F96%1010.8 hPa
Salem, Salem-Leckrone Airport, IL18 mi34 minN 05.00 miRain62°F59°F92%1011.5 hPa

Wind History from ENL (wind in knots)
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Last 24hrS10S9SE8SE8SE10SE11
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SE10SE7SE7
1 day agoSE9SE12SE11
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S8
2 days agoNE6NE4E7E5E5E6E6E5E7E4E6E3E5E3SE7SE5SE7SE6E8E6SE10SE9SE10SE13
G17

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 St. Louis, MO (19,4,5,8)
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Ground Weather Radar Station Evansville, IN
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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.