Friday, June23, 2017 L-36.com


Marine Weather and Tides
Winchester, MO

Version 3.4
What's New / NOTES
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 5:37AMSunset 8:32PM Friday June 23, 2017 3:40 PM CDT (20:40 UTC) Moonrise 4:21AMMoonset 7:05PM Illumination 0% Phase: New Moon; Moon at 29 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 Winchester, MO
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location: 38.58, -90.53     debug


Area Discussion for - St. Louis, MO
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Fxus63 klsx 231734
afdlsx
area forecast discussion... Updated aviation
national weather service saint louis mo
1234 pm cdt Fri jun 23 2017

Update
Issued at 1043 am cdt Fri jun 23 2017
cold front has moved southeast through about halfway across the
cwa late this morning. The heaviest showers and isolated
thunderstorms associated with the remnants of cindy are just south
of the CWA over far southeast missouri into southern illinois.

Will keep with a chance of showers and a few thunderstorms ahead
of the front the rest of the morning into the early afternoon.

The chance will diminish over the southeast missouri and southwest
illinois counties by late afternoon as front pushes south of the
area. The clouds will also show some slow clearing as upper clouds
pushes off to the east and drier air moves in behind the cold
front. Going highs still look good for today.

Britt

Short term (through late tonight)
issued at 330 am cdt Fri jun 23 2017
cold front extending from east central ia southwestward to
northwestern mo to sink slowly to the southeast today. In the
meantime, tropical depression cindy, which is over central arkansas,
will lift northeastward into far southern portions of mo bootheel
late this morning, then track eastward along tn ky border. So
dealing with two areas of activity, showers and storms along cold
front that will continue to track southeast into northeast mo west
central il by 4-5 am timeframe and isolated scattered storms over
remainder of forecast area due to t.D. Cindy. Coverage of activity
from both systems hard to pin down, but best chances will be over
east central and southeast mo, as well as southern il through
midday, then taper off quickly during the afternoon hours as cold
front exits region. Because of clouds and precipitation, highs today
will be a bit below normal, in the low to mid 80s.

Dry and less humid air to make it's way into region behind cold
front as skies clear out. So lows tonight will be in the mid 50s to
low 60s.

Byrd

Long term (Saturday through Thursday)
issued at 330 am cdt Fri jun 23 2017
main focus thru the forecast period will be temps.

The cdfnt, currently approaching the CWA from the north, will be
south of the area by 12z sat. With a deep upper trof settling across
the eastern two-thirds of the u.S. With NW flow across the region,
expect mostly dry conditions with well below seasonal average temps.

A reinforcing cdfnt will bring another shot of cooler temps on sat.

However, this fnt will linger across SRN portions of the cwa. A S w
dropping into the region late Sun night into Mon will generate shra
along this fnt.

As the upper trof digs into the region, another reinforcing cdfnt
will drop thru the area. As the sfc ridge builds into the region,
expect Mon to be the coolest day of the forecast period. Temps shud
begin to rebound by tues as sfc winds become sly and the thermal
ridge begins to build into the area. However, still expecting below
seasonal average temps thru at least mid week.

As sly flow returns, the chance for tsra increases, mainly late in
the week. However, timing remains uncertain and have kept pops
fairly low attm.

Tilly

Aviation (for the 18z tafs through 18z Saturday afternoon)
issued at 1222 pm cdt Fri jun 23 2017
band of MVFR clouds will move through st. Louis area terminals
through 20z as a cold front move across the area. Otherwise dry
andVFR conditions are expected through the period. North to
northwest winds gusting up to around 20kts this afternoon
will diminish this evening.

Specifics for kstl: band of MVFR clouds will move through lambert
through 19z before becoming dry andVFR the rest of the forecast
period. North to northwest winds gusting up to around 20kts this
afternoon will diminish this evening.

Britt

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
St. Louis, Spirit Of St. Louis Airport, MO8 mi46 minN 910.00 miMostly Cloudy84°F57°F40%1007.1 hPa
St. Louis, Lambert-St. Louis International Airport, MO15 mi49 minNNW 15 G 2410.00 miMostly Cloudy87°F55°F35%1006.6 hPa
St. Louis Downtown Airport, IL20 mi47 minNNW 22 G 2710.00 miFair and Breezy86°F59°F40%1007.1 hPa

Wind History from SUS (wind in knots)
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Last 24hrSE7SE7S9SE6S5SE54CalmSE4CalmCalmCalmS5SW3CalmCalmSW53W11
G18
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G18
NW14
G22
N15N9
1 day agoS7SW7S5S6S6S6S4S3CalmS3S4CalmCalmS4CalmS3S6S6S6S8SE6S7S6SE6
2 days agoW12
G17
W13SW9SW6S5S6CalmW5CalmS5SW8SW6SW6SW6W3CalmW5S5SW5SW6SW75SW9S7

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 St. Louis, MO (16,3,4,5)
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Ground Weather Radar Station St. Louis, MO
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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.