Monday, December9, 2019
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Marine Weather and Tides
Palmyra, IL

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
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 7:08AMSunset 4:37PM Monday December 9, 2019 1:57 AM CST (07:57 UTC) Moonrise 3:14PMMoonset 4:19AM Illumination 93% Phase: Waxing Gibbous; Moon at 12 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 Palmyra, IL
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location: 39.42, -90.06     debug


Area Discussion for - St. Louis, MO
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FXUS63 KLSX 090529 AFDLSX

Area Forecast Discussion . Updated Aviation National Weather Service Saint Louis MO 1129 PM CST Sun Dec 8 2019

SHORT TERM. (Through Late Monday Night) Issued at 328 PM CST Sun Dec 8 2019

Cloud cover continues to increase across the ahead of a surface low located across south-central Kansas early this afternoon. Chances of rain showers are expected to increase by late this evening, mainly across portions of southeast Missouri and southwestern Illinois in response to strengthening low-level warm/moist advection. This widespread shower activity should translate more into the lower to mid Ohio Valley Monday morning along with the strongest low-level forcing. Behind this activity, isolated-scattered showers are possible ahead of the approaching cold front. In addition, some drizzle is also possible in the vicinity of the front where low stratus is expected along with stronger low-level convergence. Deterministic model guidance is in good agreement on the timing of this aforementioned cold front, nearly bisecting the CWA around midday and then clearing the CWA by early evening on Monday. Behind this front, look for sharply falling temperatures along with gusty northwest winds. Sustained wind speeds behind the front are forecast to be generally 15-20 mph with gusts as high as 30-35 mph during the late afternoon and early evening hours. This combination of brisk northwest winds and temperatures falling into the 20s will make it feel like it is in the teens Monday night, which is certainly a big change compared to this afternoon with temperatures nearing 60 degrees in some locations.

Seasonably cold and dry conditions are forecast Monday night due to continued strong cold/dry advection. Low temperatures are forecast to range from the upper teens to mid twenties which would be right about 5 degrees below normal.

Gosselin

LONG TERM. (Tuesday through Next Sunday) Issued at 328 PM CST Sun Dec 8 2019

As has been noted the past 24-48 hours, the midweek cold snap has continued to moderate. This is in response to a slight (50-100 mile) shift of a shortwave trough across the Great Lakes and its associated arctic air in its wake. The northern Plains, Great Lakes and northeast will still be very frigid. In fact, lows well below zero are forecast Tuesday and Wednesday morning across much of the Upper Midwest. However, for our region, this slight shift of the coldest air to the northeast leaves the bi-state region with only slightly below normal temperatures through the middle of this week. Lows Wednesday and Thursday morning are forecast to be in the in the upper teens and twenties, with highs on Tuesday and Wednesday in the thirties and forties.

Moderating temperatures are forecast toward the end of the next work week as mid/upper level flow transitions more northwesterly to zonal. There is a large spread with how individual shortwave troughs evolve late this week into next weekend, but the general thought is for an uptick in rain chances Friday into Saturday, followed by a chance of rain and/or snow with a possible second system next Sunday as temperatures return to near or slightly below normal.

Gosselin

AVIATION. (For the 06z TAFs through 06z Monday Night) Issued at 1101 PM CST Sun Dec 8 2019

Not a lot of changes from the previous forecast. Strong WAA over the area is helping to support light rain and the increase in moisture leading to lowering cigs. Expect cigs to continue to gradually lower into IFR range with rain and/or drizzle tonight. An approaching cold front will bring westerly to northwesterly winds with gusts to around 25 kts. This front will also help improve cigs, eventually becoming VFR late Mon afternoon into the evening.

Tilly

LSX WATCHES/WARNINGS/ADVISORIES. MO . None. IL . None.

WFO LSX


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Jacksonville Municipal Airport, IL26 mi82 minS 810.00 miOvercast46°F43°F89%1005.4 hPa

Link to 5 minute data for KIJX

Wind History from IJX (wind in knots)
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1 day agoCalmS3SE4S4S3S3S4S6S7S9S9S6S6S4SE6SE4SE5S6SE6SE9S6S8S6S7
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Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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wmap_A
GEOS 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 St. Louis, MO (2,6,7,8)
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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.