|
Marine Weather and Tides
Version 3.4 |
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 6:14AM | Sunset 7:54PM | Saturday August 17, 2019 11:50 AM CDT (16:50 UTC) | Moonrise 8:22PM | Moonset 7:04AM | Illumination 96% |  |
7 Day Forecast for Marine Location Near Portage Des Sioux, MO
Hourly EDIT Helplocation: 38.94, -90.3 debug
Area Discussion for - St. Louis, MO
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus63 klsx 171130 afdlsx area forecast discussion... Updated aviation national weather service saint louis mo 630 am cdt Sat aug 17 2019 Short term (through late Sunday afternoon) issued at 350 am cdt Sat aug 17 2019 main concern in the short term is the potential for severe weather and flooding this morning. Will leave the flash flood watch in effect through this morning. Showers and thunderstorms continue to develop across western missouri and kansas early this morning in an area of strong 925- 850mb moisture convergence just north of a surface warm front. These clusters of storms will move east over the next few hours as the nose of the 40kt low level jets veers to the east. This will bring the storms through the CWA between 4-10 am. There is still some potential for a few severe thunderstorms given the latest objective analysis depicting mucapes over the area between 1000-2000 j kg and deep layer shear of 40-50kts suggesting that a few cells could produce large hail and damaging winds. In addition, will leave the flash flood watch in place given forecast pwats near 2.0" and deep layer cloud layers of 13.0k ft. This indicates that the storms will be very efficient rain producers. In addition, there will be the potential for training, hence the concern for flash flooding. Thunderstorms will move east and diminish by mid morning as the low level jet weakens and continues to veer to the east. The front will move north during the day, but the atmosphere will become capped, so will only carry a slight chance of thunderstorms over northeast missouri and west central illinois. The chance for thunderstorms will increase tonight as the GFS nam are in decent agreement that another shortwave trough will move across the midwest late tonight into early Sunday. There will be sufficient instability moisture transport ahead of the attendant cold front to go with likely pops over central and northeast missouri as well as west central illinois with chance pops elsewhere. The chance of thunderstorms will continue along the front in a very unstable atmosphere into Sunday afternoon. Britt Long term (Sunday night through Friday) issued at 350 am cdt Sat aug 17 2019 main concern for next week is the potential for heat on Monday and Tuesday. The deterministic global models as well as the GEFS mean continue to show an upper high building across the central conus. |
While this will cause heights to rise which will suppress convective development development, the GFS and canadian is showing a low level front stalling over the area which will act for the focus for some thunderstorm development which lends to forecast uncertainty. The ECMWF and GFS are depicting 850mb temperatures in the lower 20s c which support surface temperatures in the 90s, and a surface boundary could cause pooling of dewpoints in the 70s. This would result in heat index values reaching 105 in some areas both Monday and Tuesday assuming that enough thunderstorms do not develop either day. By Tuesday night and Wednesday, a shortwave trough will move through the midwest in the northwesterly flow aloft bringing a chance of showers and thunderstorms. Cooler air will move in behind the attendant cold front causing temperatures to fall closer to normal. Another system late in the week will bring another chance of showers and thunderstorms. Britt Aviation (for the 12z tafs through 12z Sunday morning) issued at 612 am cdt Sat aug 17 2019 showers and thunderstorms are expected to move through all of the terminals over the next 1-3 hours. Thunderstorms will bring MVFR ifr ceilings and visibilites, hail, and wind gusts to 30-40kts. This activity will move out of the terminals by 15z, and then dry andVFR conditions are then expected through at least late tonight before additional showers and thunderstorms move into central and northeast missouri and west central illinois affecting kuin and possibly kcou after 09z. There also may llws set up by 06z tonight. Specifics for kstl: showers and thunderstorms are expected to move through the terminal through 15z with MVFR ifr ceilings and visibilites and wind gusts to 30kts. Then dry andVFR conditions are expected the rest of the period with light winds. Britt Lsx watches warnings advisories Mo... Flash flood watch until 1 pm cdt this afternoon for audrain mo- boone mo-callaway mo-knox mo-lewis mo-marion mo-monroe mo- montgomery mo-pike mo-ralls mo-shelby mo. Il... Flash flood watch until 1 pm cdt this afternoon for adams il- brown il-pike il. Wfo lsx |
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a mapAirport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| St. Louis Regional Airport, IL | 13 mi | 61 min | ESE 11 | 10.00 mi | Overcast | 73°F | 73°F | 100% | 1013.9 hPa |
| St. Louis Lambert International Airport, MO | 13 mi | 60 min | S 9 | 10.00 mi | Mostly Cloudy | 77°F | 71°F | 82% | 1012.5 hPa |
Link to 5 minute data for KSET
Wind History from SET (wind in knots)
| 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | -12 PM | |
| Last 24hr | ||||||||||||||||||||||||
| 1 day ago | ||||||||||||||||||||||||
| 2 days ago |
Tide / Current Tables for
EDIT Weekend mode (on/off) (on/off) HelpTide / Current Tables for
EDIT (on/off) HelpWeather Map and Satellite Images
(on/off) HelpWeather Map
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.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for St. Louis, MO (12,3,4,5)
(on/off) Help
Ground Weather Radar Station St. Louis, MO
(on/off) Help
Ad by Google
|
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. |