Saturday, October21, 2017 L-36.com


Marine Weather and Tides
Jacksonville, IL

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
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.

Sunrise 7:17AMSunset 6:13PM Saturday October 21, 2017 10:39 AM CDT (15:39 UTC) Moonrise 7:55AMMoonset 6:42PM Illumination 2% Phase: Waxing Crescent; Moon at 1 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 211051
afdilx
area forecast discussion
national weather service lincoln il
551 am cdt Sat oct 21 2017

Short term (today and tonight)
issued at 338 am cdt Sat oct 21 2017
a tightening pressure gradient between a high anchored along the
east coast and a cold front in the plains will produce strong
s SW winds across central illinois today. Numeric guidance and
forecast soundings suggest gusts of 25-30mph, particularly from
late morning through the afternoon. Plenty of mid high clouds will
stream across the region this morning, as a short-wave trough
tracks just W NW of illinois through iowa into wisconsin. While
regional 00z upper air soundings showed very dry air below 500mb,
current radar mosaic indicates 30-40dbz echoes embedded within
the southwesterly flow on the periphery of the wave. No surface
obs have reported precip yet, but have decided to include a chance
for sprinkles everywhere west of the i-57 corridor this morning in
case some very light precip manages to reach the ground beneath
the stronger echoes. Aside from that, the remainder of the day
will be partly to mostly cloudy... Breezy... And very warm with
highs once again climbing well into the 70s.

The plains cold front will slowly push eastward tonight,
triggering showers and thunderstorms overnight. 00z oct 21 models
have continued the recent trend of slowing the eastward progress
of the front, with most high-res solutions keeping showers west of
the kilx CWA until after midnight. Have scaled back evening pops
accordingly, with only slight chances west of i-55. Rain chances
will gradually spread eastward across the remainder of the area
overnight, but may not reach the indiana border until after 12z.

Spc continues to highlight locations west of the mississippi river
for potential severe later today: however, by the time any
convection reaches west-central illinois, instability will be
waning and severe threat appears to be low tonight.

Long term (Sunday through Friday)
issued at 338 am cdt Sat oct 21 2017
front will slowly push eastward across central illinois on Sunday,
bringing showers and perhaps a few isolated thunderstorms.

Boundary will slip mainly east of the area by Monday: however,
models are continuing to struggle with a rather complex upper air
pattern early next week. The main challenge is how an upper trough
digging across the northern plains will interact with an upper low
tracking through the mississippi tennessee river valleys.

Considerable model spread still exists, resulting in below average
forecast confidence beyond Sunday. At this point, will continue to
forecast showers across mainly the E SE CWA on Monday as the upper
low slows. Meanwhile, as the northern plains wave digs further
south and merges with the low, clouds and light showers are a good
bet everywhere on Tuesday. The main weather story for the middle
of the week will be the considerably cooler conditions... As
temperatures drop from the 60s 70s on Sunday into the 50s by
Tuesday Wednesday. After that... Warming conditions are expected by
the end of the week.

Aviation (for the 12z tafs through 12z Sunday morning)
issued at 551 am cdt Sat oct 21 2017
strong southerly winds gusting to around 25kt will prevail across
central illinois today. Isolated very light showers sprinkles will
be possible through the morning hours, particularly west of the
i-57 corridor. Have therefore included vcsh at kpia kbmi kspi
through 18z. A cold front will begin to approach from the west
tonight, bringing showers and a few thunderstorms overnight. Based
on latest model data, have introduced predominant showers with
vcts at kpia after 08z... Then further east to kbmi kspi after 10z.

Further east, decided to only mention vcsh through 12z at the
remaining terminals.

Ilx watches warnings advisories
None.

Short term... Barnes
long term... Barnes
aviation... Barnes


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Jacksonville Municipal Airport, IL3 mi64 minSSE 910.00 miPartly Cloudy64°F54°F71%1016.9 hPa

Wind History from IJX (wind in knots)
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Last 24hrS4S8S9S9SE10SE9SE7SE7SE8S11
G16
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1 day agoCalmCalmS4S5S6S6S6S4S4SE5SE4SE5SE6S7S7S6S6S7S6S6S7S7S7S8
2 days agoS8S8S11
G15
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S13S7S5SE6S7S6S5S6S6S6S6S5S7S8S6S6SW6SW7SW6

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 Central Illinois, IL (11,2,3,4)
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Ground Weather Radar Station Central Illinois, IL
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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.