Thursday, January24, 2019 L-36.com


Marine Weather and Tides
Jacksonville, 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 7:13AMSunset 5:12PM Thursday January 24, 2019 4:39 AM CST (10:39 UTC) Moonrise 9:37PMMoonset 9:49AM Illumination 87% Phase: Waning Gibbous; Moon at 18 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 241030
afdilx
area forecast discussion
national weather service lincoln il
430 am cst Thu jan 24 2019

Short term (today and tonight)
issued at 415am cst Thu jan 24 2019
wind chill advisory in effect north of i-70 tonight and Friday
morning for wind chills as cold as 15 to 30 below zero. The
coldest readings overnight and early Fri morning will be from
galesburg and bloomington normal north, and flirting with wind
chill warning criteria. Will issue a special weather statement for
blowing and drifting snow developing by afternoon behind an arctic
cold front for areas NW of the il river, especially over knox and
stark counties where 1-3 inches of snow fell the previous night.

An arctic cold front currently over central wi and southeast ia
into NW mo, will push SE across the il river valley late this
morning and over rest of central and southeast il during this
afternoon. This front could produce isolated light snow showers or
flurries today. Strong NW winds behind arctic cold front will gust
25-35 mph and usher in much colder air into the region for
tonight. Highs today range from around 20f over northern cwa, to
the upper 20s south of i-70. Lows tonight range from 6-12 below
over northern cwa, to 0-5 above in southeast il. Wind chills will
drop to 15-30 below zero tonight into Friday morning north of i-70
and 10-15 below zero south of i-70.

Long term (Friday through Wednesday)
issued at 415 am cst Thu jan 24 2019
very cold temperature generally expected to continue across the
area through late next week. A series of clipper systems to track
se across the areas from Friday through Monday night, bringing
daily chances of light snow. Another surge of arctic air follows
the Monday clipper system.

A weak 1020 mb surface low pressure moves quickly toward west
central il by sunset Friday. This will likely produce some light
snow to central il on Friday afternoon evening with snow
accumulations around 1 inch or less with the highest amounts nw
cwa. Highs Fri range from lower teens NE CWA to upper teens to
near 20f over SW cwa. Briefly dry overnight Fri night into
Saturday morning, before next weak clipper system brings next
chance of light snow and flurries Sat afternoon and early sat
evening. Just a dusting of light snow possible with this feature.

Highs Sat range from 15-20f northern CWA to 25-30f in southeast
il.

Models take a 1014 mb surface low pressure SE into northern NE mo
by sunrise Sunday and across central il during Sunday morning.

This to bring a chance of light snow to area Sunday morning and
diminishing during Sunday afternoon. Areas along highway 50 could
see a light mix of pcpn Sunday afternoon. Snowfall amounts pretty
light on Sunday, with a dusting to around a half inch, highest in
sw cwa.

A much stronger low pressure system tracks SE into central or
northern il by Mon afternoon with snow likely spreading SE over
cwa overnight Sun night and Monday, then diminishing from the nw
during Mon night. South il will see pcpn hold off longer until
late Mon morning or Monday afternoon. Areas south of i-72 could
see mixed pcpn on late Mon morning and Mon afternoon, then colder
air arriving during Mon night to chance it back to light snow.

Some snow accumulations possible especially NE CWA where a few
inches possible. Latest models have trended further NE with
this low pressure track and heavier snow accumulations in NE il.

Reinforcing arctic air to usher into the area on Tue Wed with
subzero lows likely again over central il Tue and Wed nights with
wind chills dropping into the 15-25 below zero rain north of i-70
and possibly colder over areas from i-74 north. A very weak
clipper system could bring chance of light snow or flurries to
part of area Tue night with another chance of light snow late
next Thu and Thu night.

The climate prediction center (cpc) 8-14 day outlook for jan 31
thru feb 6 has 65-70% chance of below normal temperatures over
central and southeast il.

Aviation (for the 06z tafs through 06z Thursday night)
issued at 1117 pm cst Wed jan 23 2019
low cloud deck has passed all the TAF sites except for kcmi late
this evening, and that holdout should scatter out during the next
couple hours. However, MVFR conditions will begin moving back in
from the northwest toward 12z, as a cold front approaches. Some
lower visibilities continue to be indicated in the high-res models for
a couple hours Thursday morning, but coverage of any responsible
snow showers is more uncertain. Will include a prob30 group for
4sm visibilities at kpia kbmi ahead of the front for now. Once
the front passes, ceilings will remain around 1000-1500 feet a
good portion of the afternoon, gradually lifting above 2000 feet
before clearing out during the evening. Northwest winds will also
be gusting 20-25 knots with the strong cold air advection, and
this will continue through the end of the TAF period.

Ilx watches warnings advisories
Wind chill advisory from 6 pm this evening to noon cst Friday
for ilz027>031-036>038-040>057-061.

Short term... 07
long term... 07
aviation... Geelhart


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Jacksonville Municipal Airport, IL3 mi65 minS 510.00 miFair15°F12°F89%1012.9 hPa

Wind History from IJX (wind in knots)
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Last 24hrW4W19
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W14W16W13W9W10W7W3W4W7W5W7W6W6SW4SW5
1 day agoSE14
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S9S7S4S5S4S3CalmCalmCalm
2 days agoE6E5E8E9SE9SE15
G22
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G19
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SE12E16
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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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wmap_A
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 Central Illinois, IL (5,6,7,8)
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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.