Marine Weather and Tides
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
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.
|Sunrise 6:37AM||Sunset 7:37PM||Tuesday April 7, 2020 3:26 PM CDT (20:26 UTC)||Moonrise 6:18PM||Moonset 5:45AM||Illumination 100%|
7 Day Forecast for Marine Location Near Hannibal, MOHourly EDIT Help
Area Discussion for - St. Louis, MO  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS63 KLSX 072019 AFDLSX
Area Forecast Discussion National Weather Service Saint Louis MO 319 PM CDT Tue Apr 7 2020
SHORT TERM. (Through Late Wednesday Night) Issued at 314 PM CDT Tue Apr 7 2020
Weak cold front will begin to make it's way into the region by 22z and slowly sink south tonight. Ahead of the boundary, surface based CAPES will rise to between 1500 and 2500 J/kg by late this afternoon. However, weak low level convergence, limited/shallow moisture and decent CIN will initially keep the atmosphere capped. After 00z Wednesday, the cap begins to lessen somewhat, so could see isolated convection develop, with a few strong to severe storms possible. As for location of activity, a number of deterministic models and some CAMs continue to have activity fireup from the St. Louis metro area and points to the east. Confidence is low that storms will develop, so will keep slight/low chance pops going in this area. Otherwise, another mild night with lows in the low 50s to low 60s.
On Wednesday, another unseasonably warm day with highs in the upper 70s to mid 80s, about 15 to 20 degrees above normal for this time of year. Main cold front will begin to slide south through forecast area Wednesday afternoon. Still feel that the majority of the activity with this boundary will be along and behind the front. With surface based CAPES between 1500 and 2000 J/kg, mid level lapse rates between 7 and 8, as well as, 0 to 6 km bulk shear values between 50 and 60 kts, could see strong to severe storms across a wide swath of forecast area with the main threats being large hail and damaging winds.
Cold front will exit the forecast area between 03z and 06z Thursday with activity coming to an end from north to south. As surface ridge builds in much colder air will advect in with lows in the upper 30s to mid 40s Wednesday night.
LONG TERM. (Thursday through Next Tuesday) Issued at 314 PM CDT Tue Apr 7 2020
Unseasonably cold weather will persist for the remainder of the work week with the coldest temperatures expected Thursday night with lows in the upper 20s to mid 30s. Will need to keep eye out on temperatures that night, as we may need to issue a frost/freeze headline for portions of the area.
By Friday night, surface ridge will be moving off to the east as next system approaches the region. So expect a wet weekend with best chances Saturday through Sunday night. Despite the cloudy, rainy conditions, could see temperatures moderate a bit on Saturday with highs in the upper 50s to low 60s.
Another cold period is in store for the region after a strong cold front moves through late Sunday. Lows Sunday night and Monday night will be in the 30s both nights with highs only in the upper 40s to mid 50s Monday and Tuesday.
AVIATION. (For the 18z TAFs through 18z Wednesday Afternoon) Issued at 1237 PM CDT Tue Apr 7 2020
MVFR ceilings are lifting and scattering out across the forecast area. So the main issue through the short term will be the chances of isolated storms early this evening for the St. Louis metro area TAF sites. Otherwise, as the weak cold front sinks to the south tonight, southwest winds will veer to the west then northwest before becoming light and variable. As more robust cold front approaches region on Wednesday, winds will become southerly once again by midday Wednesday.
SPECIFICS FOR KSTL: MVFR ceilings have scattered out across the St. Louis metro area. So the main issue through the short term will be the chances of isolated storms and with sparse coverage, kept vicinity thunderstorm mention between 02z and 07z Wednesday. Otherwise, as the weak cold front sinks to the south tonight, southwest winds will veer to the west then become light and variable. As more robust cold front approaches region on Wednesday, winds will become southerly by 19z Wednesday.
PRELIMINARY POINT TEMPS/POPS. Saint Louis 62 82 44 55 / 30 20 50 0 Quincy 55 76 38 50 / 10 50 50 5 Columbia 57 80 40 55 / 10 40 50 5 Jefferson City 57 82 42 56 / 10 30 50 0 Salem 62 79 43 54 / 40 10 60 0 Farmington 60 82 43 57 / 20 10 50 0
LSX WATCHES/WARNINGS/ADVISORIES. MO . None. IL . None.
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. Follow links for more data.
|Quincy Regional Airport-Baldwin Field, IL||18 mi||33 min||SSW 14 G 21||10.00 mi||Fair||77°F||61°F||58%||1005.1 hPa|
Link to 5 minute data for KUIN
Wind History from UIN (wind in knots)
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|2 days ago||N||N||N||NE||Calm||SW||SE||S||SW||SW||S||S||SW||S||N||N||E||E||E||E||E||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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Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for St. Louis, MO (16,3,4,5)(on/off)  Help
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