Tuesday, May22, 2018 L-36.com


Marine Weather and Tides
Jacksonville, IL

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 5:38AMSunset 8:16PM Tuesday May 22, 2018 2:25 PM CDT (19:25 UTC) Moonrise 12:12PMMoonset 1:06AM Illumination 54% Phase: First Quarter Moon; Moon at 8 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 221716
afdilx
area forecast discussion
national weather service lincoln il
1216 pm cdt Tue may 22 2018

Update
Issued at 1035 am cdt Tue may 22 2018
a weak surface front and upper level trough that were associated
with perhaps a few sprinkles earlier this morning in east central
il has now exited the area into indiana. Satellite imagery shows
that an area of fog and stratus associated with the frontal zone
near i-70 is diminishing rapidly. Dewpoints at 10 a.M. Ranged
from near 60 in the NW near galesburg to 70 in the SE near
lawrenceville, and will trend downward toward the neighborhood of
60 across the area by afternoon, but this should still be enough
for scattered cumulus cloud cover across the area. Highs today
should range from the upper 70s at galesburg, peoria, and
bloomington to the low to mid 80s in areas to the south. Current
forecast is in good shape with these features, so no significant
updates are needed this morning.

Short term (today and tonight)
issued at 208 am cdt Tue may 22 2018
a weak surface boundary continues to push across the forecast area
early this morning, generally located along a quincy to pontiac
line at 1 am. This should cross the CWA by about 9-10 am. Can't
rule out a couple showers as it exits the area, but this should
largely be a dry passage in our area. Skies expected to be mostly
sunny over a large part of the area behind the boundary, though
the cu-rule suggests the cumulus may be harder to break out across
the north. With the more significant cloud over there,
temperatures likely will stay below 80 degrees north of i-74, with
mainly lower 80s elsewhere.

Long term (Wednesday through Monday)
issued at 208 am cdt Tue may 22 2018
amplifying upper ridge over the plains will build toward the
mississippi valley through Thursday. This should keep the
showers storms away from the forecast area initially. However, the
ridge will break down late week, as an upper wave moves east
into the great lakes. Longer range guidance continues to keep us
dry into Friday night. Temperatures will slowly build as the ridge
drifts overhead, and highs should be in the 90 degree vicinity by
Friday.

Forecast for the holiday weekend will be complicated by evolution
of potential tropical system in the gulf of mexico. Evening model
guidance has a fair spread on the track, ranging from a landfall
near new orleans as early as Saturday morning (ecmwf solution) to
one near tampa midday Sunday (gfs). Remnant system in either case
should be cut off from the upper flow over the great lakes, with
our area left in limbo. With no strong forcing in place, any
convection may be more diurnal in nature, but pinning it down at
this distance will be a bit tricky. Highest pop's both Sunday and
memorial day will be during the afternoon, but will be more
scattered in nature.

Aviation (for the 18z tafs through 18z Wednesday afternoon)
issued at 1217 pm cdt Tue may 22 2018
mainlyVFR conditions expected until around 09z, then potential
for MVFR or worse vsby in fog through sunrise Wednesday. Scattered
cumulus cloud development should take place this afternoon into
early evening with cloud bases around 4000 ft agl, although a few
patches of lower ceilings around 3000 ft agl are possible early
in the afternoon. Slightly drier air advecting into the area today
along with just a light n-ne surface wind tonight bring some
doubt about potential for fog to form overnight, but opted to
include mention at this point pending further assessment of
afternoon crossover temperatures and model guidance. Winds NW 5-10
kts this afternoon, becoming n-ne up to 5 kts overnight into
Wednesday morning.

Ilx watches warnings advisories
None.

Update... 37
short term... Geelhart
long term... Geelhart
aviation... 37


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Jacksonville Municipal Airport, IL3 mi30 minNW 910.00 miFair79°F62°F57%1017.9 hPa

Wind History from IJX (wind in knots)
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Last 24hrW10
G14
SW10W8SW7SW6S3CalmCalmCalmW3SW4W4W3W5CalmCalmCalmN3CalmNW5NW3NW4NW8NW9
1 day agoNE3SE5SE5SE4SE4CalmCalmE3N3NE4SE10E5E5E7CalmE4E6E6SE4S6SW11SW8SW9SW10
2 days agoSW13
G18
S7S7S5S6S5S4S10S6S4S5S4CalmCalmCalmCalmS7SE8SE5W5SW9W14
G21
NW7NE3

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 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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Central Illinois, IL (15,3,4,5)
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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.