Wednesday, June19, 2019 L-36.com


Marine Weather and Tides
Hannibal, MO

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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 5:35AMSunset 8:37PM Wednesday June 19, 2019 11:48 AM CDT (16:48 UTC) Moonrise 9:43PMMoonset 6:37AM Illumination 95% Phase: Waning Gibbous; Moon at 17 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 Hannibal, MO
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location: 39.71, -91.37     debug


Area Discussion for - St. Louis, MO
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Fxus63 klsx 191401
afdlsx
area forecast discussion... Updated
national weather service saint louis mo
901 am cdt Wed jun 19 2019

Update
Issued at 900 am cdt Wed jun 19 2019
expanded the flash flood watch into northeast mo and west-central
il, which will receive rain for much of the day, at times heavy,
as the favored track of the upper level system passes through this
area. In fact, warnings have already been issued for some of this
expanded watch area.

Tes

Short term (through late Thursday afternoon)
issued at 343 am cdt Wed jun 19 2019
main concerns this afternoon are the potential for severe weather
and flash flooding. Have issued a flash flood watch for parts of
south central and southwest illinois through tonight.

Radar early this morning was showing scattered showers and
thunderstorms had developed over parts of the area early this
morning. This was in response to low level moisture convergence
ahead of a low amplitude trough deepening over the central plains.

The areal extent of showers and thunderstorms is expected to
expand this morning in response to increasing mid-level ascent
from the approaching trough and strong low level moisture
convergence transport into the the area. Forecast soundings from
the rap from stl and slo are showing pwats between 1.5-2.0 with
warm cloud layer depths between 10-12k' suggesting that showers
and thunderstorms will be very efficient rainfall producers
through this evening. The lowest flash flood guidance continues to
be over parts of southwest and south central illinois which have
received the most recent heavy rainfall in recent days, so have
gone with a flash flood watch over much of the eastern part of the
cwa.

Second hazard of the day will be the potential for severe weather.

The GFS nam are showing a surface low moving across the CWA this
afternoon and this evening bringing an cold front to the south of
it. Forecast mlcapes will be 1000+ j kg with deep layer shear 40kts
supporting organized severe thunderstorms capable of producing large
hail and damaging winds this afternoon and this evening ahead of the
cold front. Models show the upper trough axis moving off to the
east of CWA by early on Thursday causing showers and thunderstorms
to end from west to east late tonight.

Thursday is expected to be dry as a shortwave ridge moves across the
area. Temperatures are expected to be below normal.

Britt

Long term (Thursday night through Tuesday)
issued at 343 am cdt Wed jun 19 2019
global models remain consistent that the upper pattern will amplify
as we go into the weekend. Thursday night looks to still be dry as
as a shortwave ridge moves through the area. Then there will be
chance of showers and thunderstorms mainly along and north of i-70
on Friday as a shortwave trough moves across missouri and illinois
along a northward moving warm front. The upper ridge will build
over the area on Friday and shift east of the area by Friday
night. Rain chances will continue over the weekend into early next
week as shortwaves move across missouri and illinois in the
southwesterly flow aloft with an warm and unstable airmass in
place over the cwa.

Surface temperatures will warm up above normal by Friday and
Saturday with the global models showing 850mb temperatures rising
above 20c and the GEFS mean temperatures supporting temperatures in
the lower 90s. Parts of central and east central missouri on Friday
and Saturday afternoon will have peak heat index reading near 100
degrees. 850 temperatures drop back into the 15-20c range from
Sunday into Tuesday with ensemble mean temperatures supporting
highs closer to normal.

Britt

Aviation (for the 12z tafs through 12z Thursday morning)
issued at 558 am cdt Wed jun 19 2019
showers and thunderstorms will become more numerous across the
area by later this morning and this afternoon at all of the
terminals. These storms will bring MVFR possible ifr ceilings
and visibilities. The showers and thunderstorms will move out of
the terminals this evening, but MVFR and ifr ceilings will
redevelop over the area tonight.

Specifics for kstl:
showers and thunderstorms will move into the terminal late this
morning and early this afternoon and continue through early this
evening. These storms will bring MVFR possible ifr ceilings
and visibilities.VFR conditions are expected as the rain moves
out later this afternoon and this evening, but then additional
MVFR ceilings will move into the terminal overnight tonight.

Britt

Lsx watches warnings advisories
Mo... Flash flood watch through Thursday morning for knox mo-lewis mo-
marion mo-monroe mo-pike mo-ralls mo-shelby mo.

Il... Flash flood watch through Thursday morning for adams il-bond il-
brown il-calhoun il-clinton il-fayette il-greene il-jersey
il-macoupin il-madison il-marion il-montgomery il-pike il.

Wfo lsx


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Quincy Regional Airport-Baldwin Field, IL18 mi54 minENE 58.00 miMostly Cloudy70°F66°F90%1005.3 hPa

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Last 24hrW4NW43CalmCalmNE3NE3NE4E3CalmNE4E3SE3E4E5E4E6E6E8E6NE53
G16
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1 day agoNE10NE9E8NE6E8NE4E4N5NE5NE3N4NE4SE6SE4NE4CalmE3NE3CalmCalmNE4N6NE5NW5
2 days agoNW11
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4N3Calm3NE6N6N8E4E3NE10NE10NE8NE8NE5NE5NE6NE8NE8NE8NE9NE11NE9N10

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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GOES 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.
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Wind Forecast for St. Louis, MO (12,3,4,5)
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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.