Sunday, August25, 2019 L-36.com


Marine Weather and Tides
Jacksonville, IL

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7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:21AMSunset 7:44PM Sunday August 25, 2019 7:54 PM CDT (00:54 UTC) Moonrise 12:00AMMoonset 3:03PM Illumination 21% Phase: Waning Crescent; Moon at 25 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 252322
afdilx
area forecast discussion
national weather service lincoln il
622 pm cdt Sun aug 25 2019

Synopsis
Issued at 345 pm cdt Sun aug 25 2019
unsettled weather will prevail through Monday night across
central and southeast illinois, with a few rounds of showers and
thunderstorms. Strong to severe thunderstorms are possible along
and west of i-57 Monday night, along with locally heavy rains
mainly during Monday evening. A few showers and isolated
thunderstorms will linger in eastern illinois Tuesday morning,
then drier conditions are expected from Tuesday afternoon through
Thursday night along with pleasant temperatures and humidity
levels.

Short term (this evening through Monday)
issued at 345 pm cdt Sun aug 25 2019
latest radar mosaic shows light to moderate showers lifting nne
toward into SW CWA at mid afternoon, while isolated light showers
or sprinkles over rest of cwa. More unstable air was south of il
over southern parts of ky mo where some thunderstorms were. Clouds
were thickening and lowering over central and western CWA while
mainly broken mid level clouds in eastern il with some peaks of
sun. Temps at 330 pm ranged from upper 60s and lower 70s in rain
cooled area from quincy to pittsfield to litchfield SW to st
louis, to around 80f in far eastern il from danville to
charleston mattoon to lawrenceville east where more sunshine
observed today. Dewpoints ranged from the upper 50s northern cwa,
to the upper 60s from pittsfield to litchfield SW and from
robinson to flora south in southeast il.

1029 mb high pressure that provided us nice weather the past few
days, is drifting east over northeast new england and into the
eastern canadian maritimes. An upper level short wave trof over
the eastern plains of western ia mo into NW ar. Precipitable water
values had increase to 1.3-1.8" over cwa, highest over SW CWA and
were 1.9-2.2 inches in southern il from i-64 south. WAA and
isentropic lift to increase chances of showers and isolated
thunderstorms nne into central il tonight and have trended higher
with pops as showers moving in quicker. Lows tonight in the mid
60s central il and upper 60s in southeast il.

The short wave trof slowly tracks east over il by dawn Monday and
weakens as it shifts east of il by late Mon afternoon. Have high
chances of showers and isolated thunderstorms Mon morning over
central and eastern cwa, then diminishing from the west during
mon afternoon. Highs Mon in the lower 80s, with upper 70s east of
i-57 where low clouds and showers linger longer in the afternoon.

More humid Monday with dewpoints in the upper 60s lower 70s.

Long term (Monday night through Sunday)
issued at 345 pm cdt Sun aug 25 2019
a large northern stream upper level trof digs into the upper
midwest on Monday and pushes a cold front SE toward the il ia
border by sunset Mon and SE toward the wabash river by dawn tue.

Precipitable water values that rise around 2 inches tonight, could
pool even higher ahead of this cold front and supports marginal
risk of excessive rainfall with around 1 inch or more possible.

Spc day2 update has expanded marginal risk of severe storms east
to i-57 Mon night with slight risk over western CWA for mainly mon
evening. Lows Mon night in the lower 60s far NW CWA with upper 60s
from i-55 east.

Have a chance of showers and isolated thunderstorms in eastern se
il Tue morning then dry and less humid conditions to arrive tue
afternoon into Tue night as cold front pushes further SE of il.

Return of sunshine on Tue helps warm temps into the lower 80s,
except upper 70s NW of the il river. Cooler lows Tue night in the
upper 50s to near 60f.

Dry conditions Tue night thru Thu night across the area with more
comfortable humidity levels lower dewpoints and temperatures
overall during mid week with upper level trof digging over the
area on Wed and weak surface high pressure settling into the mid
ms river valley. Another cold front progged by models to sweep se
over central il late Thu night and Fri but will have limited
moisture with gulf moisture cut off, so just 20-30% chance of
convection on Friday and Fri night. Models show some moisture
moving east from mo valley Fri night into Sat and could linger
chances of showers and isolated thunderstorms. Cooler highs in the
70s expected next weekend behind secondary cold frontal passage on
Friday.

Aviation (for the 00z tafs through 00z Monday evening)
issued at 622 pm cdt Sun aug 25 2019
band of showers is currently lifting northeast across central
illinois, and will impact the TAF sites for a time early this
evening. Main threat of any steady rain will be after 06z, as a
warm front lifts northward. Think the threat of thunder will be
with this latter feature, and have timed the mention of tsra vcts
for a period beginning around 07z from kspi-kcmi, and around
11-12z kpia-kbmi. Will linger some showers late morning, before
conditions dry out.

Cloud-wise, some low MVFR conditions were located in far western
illinois early this evening, but think the substantial cloud
lowering in central illinois should accompany the front. Continued
with a rapid lowering to ifr conditions between 06-09z kspi-kcmi,
then toward 10-11z further north. A slow improvement is expected
once the heavier rain moves out. May seeVFR conditions return by
late afternoon at kspi, but have held off on a mention elsewhere
for this TAF set.

Ilx watches warnings advisories
None.

Synopsis... 07
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 mi80 minESE 1110.00 miOvercast71°F65°F84%1012.5 hPa

Link to 5 minute data for KIJX

Wind History from IJX (wind in knots)
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Last 24hrNE4E7E5E5E6E6E5E3E5E5E5E10E9E9E9E7E6E8E6E7SE10
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1 day agoNE5NE5NE8E9E6NE7NE6NE4E7NE6E3E5E6E8E10SE13E15
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2 days agoCalmCalmCalmNE3NE7NE8NE6NE6NE4NE5NE3NE6NE8E8E7E9E8E10E8NE11NE12
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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 Midwest    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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Wind Forecast for Central Illinois, IL (20,4,5,8)
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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.