Thursday, July20, 2017 L-36.com


Marine Weather and Tides
West Peoria, 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 5:43AMSunset 8:25PM Thursday July 20, 2017 5:39 PM CDT (22:39 UTC) Moonrise 2:59AMMoonset 5:46PM Illumination 8% Phase: Waning Crescent; Moon at 27 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 West Peoria, IL
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location: 40.7, -89.61     debug


Area Discussion for - Central Illinois, IL
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Fxus63 kilx 202009
afdilx
area forecast discussion
national weather service lincoln il
309 pm cdt Thu jul 20 2017

Short term (this evening through Friday)
issued at 309 pm cdt Thu jul 20 2017
subsidence in the wake of a morning MCS that skirted central
illinois to the northeast has prevented convective re-development
thus far this afternoon. However, latest laps analysis shows an
extremely unstable airmass in place... With peak CAPE values in
excess of 5000j kg along and north of i-74. In addition, an area
of deep-layer moisture convergence is noted across the far
northern kilx CWA from near galesburg E SE to chenoa. This is
likely in proximity to a residual outflow differential heating
boundary left behind by the morning convection. Think this will be
the area to watch over the next few hours for widely scattered
thunderstorm development. Hrrr has been consistently showing a few
cells firing across the N NE late this afternoon into the evening,
so have included low chance pops along north of i-74 accordingly.

Think any storms that develop will dissipate toward midnight, with
largely dry conditions noted overnight.

A cold front currently extending from southern lake michigan
to central iowa will sag southward late tonight... Eventually
stalling across north-central illinois Friday morning. With a weak
boundary in the vicinity, have included low chance pops across the
entire CWA on Friday. While most locations will remain dry, a few
spots may pick up locally heavy rainfall with slow-moving storms.

The main story for Friday however, will be the continuation of the
oppressive heat and humidity. High temperatures will once again
top out in the lower to middle 90s, with peak afternoon heat index
values reaching the 105 to 110 degree range.

Long term (Friday night through Thursday)
issued at 309 pm cdt Thu jul 20 2017
low pressure will develop over the dakotas on Friday, then will
track slowly eastward into wisconsin by early Saturday. Favorable
dynamics will exist ahead of the low to trigger the development of
an MCS across minnesota wisconsin Friday night. This system will
track E SE into southern wisconsin and far northern illinois late
Friday night into Saturday morning. All indications suggest the
storms will remain mostly N NE of the kilx cwa: however, have
included low chance pops along north of i-74 as the system brushes
by the north. Once the low moves into the great lakes, it will
drag a stronger cold front southward into central illinois by late
Saturday. Most models suggests scattered thunderstorms will
develop along ahead of the front across the northern two-thirds of
the CWA late Saturday afternoon and evening. With capes once again
exceeding 4000j kg and 0-6km bulk shear increasing to around 30kt,
a few strong to severe thunderstorms with gusty winds, large hail,
and torrential rainfall will be possible. The storms will settle
into the southern CWA by Saturday night as the front sinks toward
the i-70 corridor.

Despite FROPA Saturday night, a trailing trough axis may trigger
isolated convection Sunday Sunday evening. After that, deep-layer
northwesterly flow will bring a cooler and less humid airmass into
the region early next week... With highs dropping into the lower to
middle 80s for Monday and Tuesday. The next chance for widespread
precipitation will likely hold off until Thursday at the earliest
as another cold front approaches from the northwest.

Aviation (for the 18z tafs through 18z Friday afternoon)
issued at 1238 pm cdt Thu jul 20 2017
vfr conditions will prevail through the entire 18z TAF period.

High-res models continue to suggest widely scattered thunderstorms
will develop along a lingering outflow differential heating
boundary later this afternoon and evening. Based on latest obs, it
appears this boundary will lie roughly along or just north of the
i-74 corridor at peak heating. Given uncertainty regarding exact
position of boundary and expected low areal coverage of
convection, opted not to carry vcts at the i-74 terminals... But
this may need to be added as radar trends become more apparent
later this afternoon.

Ilx watches warnings advisories
Excessive heat warning until 8 pm cdt Saturday for ilz027>029-
036-037-040>042-047>054-061-062-066>068-071>073.

Heat advisory until 8 pm cdt Saturday for ilz030-031-038-043>046-
055>057-063.

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


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Peoria - General Downing-Peoria International Airport, IL5 mi45 minWSW 810.00 miFair95°F77°F56%1013.1 hPa

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Last 24hrS7S6S5CalmCalmE4E9SE3E6SE4S6S5CalmSW6SW6NE8E6S11S10SW14W11SW10SW9W8
1 day agoS5SE4S6SE4N5SE7CalmE4CalmSW3S3S3SW3S3SW5SW4Calm3NW4NW5SW5W5W63
2 days agoN3NE4NE3NE3CalmCalmCalmCalmCalmNE3NE4--CalmCalmS4S54CalmSW6W4NW3NW4CalmCalm

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
east_satellite

GOES Local Image of Midwest    EDIT
Geos

Wind Forecast for Central Illinois, IL (18,4,5,8)
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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.