Saturday, April29, 2017 L-36.com


Marine Weather and Tides
Jacksonville, 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 6:00AMSunset 7:55PM Saturday April 29, 2017 6:22 AM CDT (11:22 UTC) Moonrise 7:55AMMoonset 10:41PM Illumination 12% Phase: Waxing Crescent; Moon at 3 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 Jacksonville, IL
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location: 39.73, -90.23     debug


Area Discussion for - Central Illinois, IL
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Fxus63 kilx 291112
afdilx
area forecast discussion
national weather service lincoln il
612 am cdt Sat apr 29 2017

Short term (today and tonight)
issued at 300 am cdt Sat apr 29 2017
deep upper low currently over the four corners region... .With a
stationary front draped from the southern plains up into the ohio
river valley. Impulses traveling from SW to NE along the boundary
developing plenty of thunderstorms with heavy precip in a large
swath across much of the country. Wpc QPF tonight has maintained a
total of 3-5" with locally more possible in the south and east.

Have left the flash flood watch at this point with the highest
qpf expected southeast of the il river valley. Day one outlook is
placing a slight risk from springfield to danville for today and
the potential for individual storms to potentially become severe
with large hail and damaging wind gusts later this
afternoon/evening as a break in the precip is persisting in the
model runs ahead of the slow advance of the upper low, allowing a
little destabilization even in the wake of plenty of prev
convection... And potential MCS this evening.

Long term (Sunday through Friday)
issued at 300 am cdt Sat apr 29 2017
warm front lifting to the north, but showers and thunderstorms
continuing through the day and into the evening hours until the
cold front sweeps through the region, eventually clearing up the
precip after midnight. Before it goes, however, the cold front
moving through the region Sun afternoon/evening will still have an
increased risk of severe weather highly contingent on the timing.

Spc day 2 outlook keeping the slight risk to the south for
now... But the marginal risk is over the rest of the state. Monday
will still maintain low pops for some residual showers in cyclonic
flow/instability showers through the afternoon. Temperatures
considerably cooler again with highs in the 50s for Monday.

Temperatures start an extremely slow warm up to the mid 60s by the
end of the week as the pattern shifts to a more zonal flow through
midweek before another upper wave dives into the midwest,
amplifying the flow over the region and bringing back a cooler air
advection with northerly winds at the surface to wrap up the week.

Aviation (for the 12z tafs through 12z Sunday morning)
issued at 607 am cdt Sat apr 29 2017
the rare ob coming in periodically withVFR conditions... But
mainly MVFR-ifr. Persistent and widespread precip with very
diffuse thunder spread across central il resulting in tafs that
carry thunder for a very long time today. Vcts later in the
forecast just to handle the lack of confidence about a potential
break in the precip. Otherwise, low clouds, limited vis, and rain
through most of today and into tonight.

Ilx watches/warnings/advisories
Flash flood watch through Monday morning for ilz031-037-038-
041>057-061>063-066>068-071>073.

Short term... Hjs
long term... Hjs
aviation... Hjs


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Jacksonville Municipal Airport, IL3 mi28 minNNE 12 G 173.00 miRain55°F53°F97%1013.5 hPa

Wind History from IJX (wind in knots)
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Last 24hrNE6SE8SE9SE9SE14
G19
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G19
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G17
SE8CalmNE4NE6N5N7NE4NE7NE5NE6NE8N12
1 day agoW8W9W7W11
G16
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W13W15
G19
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G19
W10
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W14SW10SW10W5SW3SW3E3CalmSE4SE3E4SE4SE7SE5SE6
2 days agoSW8SE9SW9SW8SW9SW9S12S7S8CalmW4NW11NW8N6N5
G8
N8N10NW8NW12
G17
NW13
G19
NW16
G23
W17W13
G17
W13

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
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Midwest    EDIT
Geos

Wind Forecast for Central Illinois, IL (7,2,3,4)
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Ground Weather Radar Station Central Illinois, IL
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weather_mapweather_map weather_map

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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.