Marine Weather and Tides
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.
|Sunrise 5:44AM||Sunset 8:15PM||Tuesday May 21, 2019 9:32 PM CDT (02:32 UTC)||Moonrise 10:10PM||Moonset 7:04AM||Illumination 90%|
7 Day Forecast for Marine Location Near Wright City, MOHourly EDIT Help
Area Discussion for - St. Louis, MO  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus63 klsx 220001|
area forecast discussion... Updated aviation
national weather service saint louis mo
701 pm cdt Tue may 21 2019
Short term (through late Wednesday night)
issued at 437 pm cdt Tue may 21 2019
line of thunderstorms is expected to move northeast across the cwa
late this afternoon and early this evening. Atmosphere has rapidly
destabilized ahead of it as 60s and lower 70 dewpoints have surged
north into the southern CWA allowing for mlcapes to jump into the
1000-1500+ j kg range. This is further evidenced by the appearance
of a well developed cumulus field that is moving northward into
the cwa. Latest rap low level convergence fields supports cams
simulated reflectivity which depicts the current line progressing
eastward across the CWA through the evening. Deep layer and low
layer shear supports the line producing damaging winds with
embedded tornadoes and perhaps some hail given the steep lapse
rates. In addition any discrete storms that do develop ahead of
the line will also be capable of producing all hazards.
Will continue the flash flood watch until midnight. While the line
will be progressive, it will have very heavy rainfall rates.
Therefore cannot rule out a flash flood threat given the already
wet ground over the area. This line will move east of the cwa
after midnight with dry conditions expect by 12z.
Wednesday looks like about one of the only dry days as the there
will be no upper systems moving across the area. By Wednesday
night however, both the nam GFS are showing another weak shortwave
moving over the area at the some time that a front will be aligned
over missouri and illinois. Will go with a chance of showers and
thunderstorms as there may be some chance for a few strong storms.
Long term (Thursday through next Tuesday)
issued at 437 pm cdt Tue may 21 2019
the extended part of the forecast will be highlighted by warm
temperatures and a chance of thunderstorms through the memorial
day weekend. The GEFS and deterministic models are in reasonable
agreement into early next week that east-west front set up
underneath quasi-zonal upper flow. This will be between a large|
upper high over the southeastern CONUS and trough over the
southwest. Coverage of thunderstorms over our area will be
determined by the ultimate location of the front and how much
upper ridging will be over the cwa. For now will keep with above
normal temperatures given forecast 850mb temperatures between
15-20c and a persistent chance of thunderstorms.
Aviation (for the 00z tafs through 00z Wednesday evening)
issued at 641 pm cdt Tue may 21 2019
a line of thunderstorms will continue to affect the st. Louis area
terminals through 01z before moving into illinois. There will be a
threat for gusts up to 50kts, hail, and isolated tornadoes at
kcps. There will also be MVFR ifr ceilings and visibilities with
it. MVFR visibilities and ceilings will also occur at kuin and
kcou before moving out later this evening. Then dry andVFR
conditions are expected at all of the terminals by 06z.
Specifics for kstl:
thunderstorms will move east of the terminal by 01z. Dry andVFR
conditions expected by 06z. Southerly winds will gust to around
20kts at times trough the end of the period.
Lsx watches warnings advisories
Mo... Flash flood watch until midnight cdt tonight for audrain mo-
boone mo-callaway mo-cole mo-crawford mo-franklin mo-
gasconade mo-iron mo-jefferson mo-knox mo-lewis mo-lincoln
mo-madison mo-marion mo-moniteau mo-monroe mo-montgomery mo-
osage mo-pike mo-ralls mo-reynolds mo-saint charles mo-
saint francois mo-saint louis city mo-saint louis mo-sainte
genevieve mo-shelby mo-warren mo-washington mo.
Il... Flash flood watch until midnight cdt tonight for adams il-bond
il-brown il-calhoun il-clinton il-fayette il-greene il-
jersey il-macoupin il-madison il-marion il-monroe il-
montgomery il-pike il-randolph il-saint clair il-washington
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|St. Louis, Spirit Of St. Louis Airport, MO||27 mi||38 min||SE 3||2.00 mi||Heavy Rain Fog/Mist||62°F||60°F||93%||1006.5 hPa|
Wind History from SUS (wind in knots)
|1 day ago||W||NW||Calm||Calm||Calm||Calm||W||W||SW||W||NW||NW||NW||NE||N||NE||N||N||NE||NE||NE|
|2 days ago||SE|
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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 (22,6,7,8)(on/off)  Help
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