Wednesday, June28, 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 5:28AMSunset 8:35PM Wednesday June 28, 2017 12:21 PM CDT (17:21 UTC) Moonrise 10:40AMMoonset 12:00AM Illumination 22% Phase: Waxing Crescent; Moon at 5 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 281546
afdilx
area forecast discussion
national weather service lincoln il
1046 am cdt Wed jun 28 2017

Update
Issued at 1045 am cdt Wed jun 28 2017
updated forecast to increase chances of showers and thunderstorms
today further southeast across the il river valley. Peoria airport
recently had a thunderstorm with heavy rain. Convection from mcs
this morning has been confined to areas from peoria north and
tracking ene toward the chicago metro. Also increased ssw winds
today which have already been gusting 20-28 mph north of i-70.

Warmer and more humid today with highs in the lower to middle
80s. Dewpoints currently ranging from 55-60f in eastern il to
60-65f in western il, will climb into the low to mid 60s during
the afternoon, highest over the il river valley.

Late morning surface map shows 996 mb low pressure near the
mn nd sd border and its cold front through central nebraska and
western ks. 1025 mb high pressure was over the western virginia.

Pressure gradient has been tightening up over central il causing
ssw winds become breezy during this morning. South winds 10-15 mph
over southeast il not quite as gusty yet, but will become gusty in
the 20s during this afternoon with gusts up to 30 mph over central
il. SPC day 1 outlook continues slight risk of severe storms NW of
il river for tonight, mainly overnight with marginal risk as far
se as i-55. The enhanced risk was from the quad cities NW into se
half of iowa closer to frontal boundary. 996 mb low pressure to
track east to NW wi lake superior area this evening and pull cold
front eastward toward central ia. The convection from peoria north
should diminish next few hours as MCS weakens. More widespread
convection to develop during afternoon evening NW of CWA and move
into il river valley overnight.

Short term (today and tonight)
issued at 318 am cdt Wed jun 28 2017
with the high pressure ridge over the eastern conus, the midwest
is moving into an unsettled warming trend, with showers and
thunderstorms expected through the end of the week. At 500mb, the
northwesterly flow is giving way to a slightly more zonal
regime... With a strong wave over the plains states this morning
resulting in an MCS already over ia. Hrrr is already about 2 hrs
behind. However, the storm is expected to move north of the fa for
the first half of the morning. Have sped up the onset of precip
and thunder in the NW a couple hours just to cover some of the
more discrete cells that has formed ahead of the main lines of
storms, as the hrrr is indicative that that activity may continue.

The bulk of the precip and storm threat is confined to the
northern tier of the state for today... Edging towards peoria,
particularly this afternoon. Later this evening, the precip
chances begin to spread southward. Warm air continues to move into
the region with an increasing pressure gradient resulting in
strong southerly winds through the day. Gusts will extend to the
evening hours as well with such turbulence in the boundary
layer... And keep the temperatures above climatological norms
tonight.

Long term (Thursday through Tuesday)
issued at 318 am cdt Wed jun 28 2017
the shift to a more zonal flow across the country opens the
region to the deep warm air over the desert sw. 850 mb temps warm
quickly today, and remain in place through the end of the week.

Even though the temps cool a few degrees at the midlevels for the
weekend as a quick wave rotates around the trough over the great
lakes, the difference at the surface is negligible. Temperatures
by and large will oscillate between highs in the 80s and lows in
the 60s through the end of the forecast. Cloud development and
storms through the end of the week will be producing enough
mesoscale impacts with boundaries of rain cooled air and pockets
of more efficient daytime heating to create a mask over potential
detail in the forecast. Generally speaking, southerly flow across
the region will feed warm temps and plenty of moisture into the
region as fuel for potential convection. A weak developing
boundary will provide some focus as the boundary settles into the
midwest. Models have a bit of agreement at this point with
bringing the next wave and a potential MCS to interact with the
boundary already in place for the end of the week, Thu night thru
Friday. Thursday (day 2) has central il in a slight risk... And
Friday (day 3) in a marginal. Increasing instability INVOF a
boundary and interactions with other outflows... Good shear to
40-50 kts in the midlevels... Threat for severe weather will linger
over to Friday and or until the focus shifts. Weekend not
necessarily in the clear, but chances drop briefly as the boundary
drifts south. Not much of a more stable airmass ends up giving way
quickly to the next wave system moving in out of the southern
plains for the first of the work week.

Aviation (for the 12z tafs through 12z Thursday morning)
issued at 548 am cdt Wed jun 28 2017
vfr throughout for now. Increasing pressure gradient will result
in prolonged gusty southerly winds on this side of the ridge well
into this evening. Scattered shower and thunderstorms will move
in NW of the il river and pia later this evening. Have delayed
mention of thunder until around 04z, but started vcsh earlier. It
is expected to be a slower progression to the south... But starting
trend for vcts for pia spi and bmi... Holding in vcsh for cmi and
dec for now. Cirrus and mid level clouds... Increasing as
convection moves in. Winds becoming increasingly southerly...

around 16-22 kts with gusts 25-30 kts.

Ilx watches warnings advisories
None.

Update... 07
short term... Hjs
long term... Hjs
aviation... Hjs


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Peoria - General Downing-Peoria International Airport, IL5 mi27 minS 14 G 2110.00 miA Few Clouds76°F66°F72%1012.5 hPa

Wind History from PIA (wind in knots)
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Last 24hrS54
G15
Calm5S5S5S8S8SE4SE6SE4S4S4S7S13S10S9S10S13S12S11S13
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1 day agoW11
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N6CalmW3CalmS3CalmCalmNW3CalmCalmCalmCalmCalmCalmCalmCalmCalmS3CalmCalmW5
2 days agoW12
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NW8NW9NW4CalmCalmCalmCalmCalmCalmCalmCalmCalmW3NW3W4W7W7W7W12
G18

Tide / Current Tables for
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Weather Map and Satellite Images
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IR Satellite Image from GEOS
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Wind Forecast for Central Illinois, IL (13,3,4,5)
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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.