Monday, August21, 2017 L-36.com


Marine Weather and Tides
Sunset Valley, TX

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
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 7:00AMSunset 8:07PM Sunday August 20, 2017 11:34 PM CDT (04:34 UTC) Moonrise 4:45AMMoonset 6:30PM Illumination 1% Phase: Waning Crescent; 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 Sunset Valley, TX
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location: 30.21, -97.8     debug


Area Discussion for - Austin/San Antonio, TX
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Fxus64 kewx 202326 aaa
afdewx
area forecast discussion... Updated
national weather service austin san antonio tx
626 pm cdt Sun aug 20 2017

Aviation 00z tafs
vfr conditions for this evening. Expect sct low clouds to develop
09z-10z. With additional moisture will likely see bkn conditions at
ksat kssf and have included a prevailing group for these locations.

Kaus more likely to remain sct, so included a tempo group to cover
the few hours bkn conditions are expected. Kdrt has the potential as
well to see a bkn layer so included a prevailing starting at 12z.

After 15z-16z all terminals should return to sct and becomeVFR once
again. Winds will be s-se 9-12 knots through 05z-06z. Kdrt will see
se winds 10-15 knots with some gusts to 20 knots through 02z then
more easterly near 10 knots. All i-35 sites back to S SE 8-12 knots
after 15z-16z Monday. Kdrt will have SE winds 10-15 knots with gust
to around 20 knots after 18z. Could see isolated convection nearing
the i-35 terminals after 20z but confidence in location and timing
is low so have not included any mention at this time.

Prev discussion issued 247 pm cdt Sun aug 20 2017
short term (tonight through Monday night)...

increased low level moisture is expected late this evening into
Monday as southerly flow dominates the region. This will keep lows in
the mid to upper 70s across much of the area with lower 70s over the
hill country. An upper level inverted-trough located over the
northern part of the gulf this afternoon is forecast to move to the
west and into our area Monday and perhaps aid isolated
showers storms across the coastal plains in the afternoon hours.

Some of the activity could get as far north to just east of
interstate 35. Highs will run between the mid to upper 90s range.

Cloud coverage increases once again Monday night with overall lows
in the mid 70s.

Long term (Tuesday through Sunday)...

the upper level ridge dominating our region the past several days
moves to the west and weakens as the upper level trough tutt
continues to move to the west. This will bring another chance for
rain across the coastal plains and our southeast counties Tuesday
afternoon. By mid-week into early next weekend, chances for rain
increase across the entire local area as a cold front approaches the
region from the north in combination with the passage of several
short-wave disturbances. The euro and canadian solutions are more
aggressive with precipitation than the GFS through the extended
forecast period. At this time, will keep pops between 20 to 40
percent range for the Wednesday through Saturday period until
medium-range models have better agreement with the passing short-wave
disturbances and increased moisture(remnants of harvey) entering the
southwest part of the gulf.

Preliminary point temps pops
Austin camp mabry 77 98 76 98 76 0 10 10 10 -
austin bergstrom intl airport 75 98 75 98 74 0 10 10 10 -
new braunfels muni airport 76 98 75 98 74 0 10 10 10 -
burnet muni airport 74 95 73 95 75 0 10 - 10 -
del rio intl airport 79 100 77 99 78 0 - 0 10 -
georgetown muni airport 76 96 74 96 76 0 10 10 10 -
hondo muni airport 75 99 73 98 74 0 - - 10 -
san marcos muni airport 76 98 75 98 74 0 10 10 10 -
la grange - fayette regional 77 99 76 98 75 - 20 10 20 -
san antonio intl airport 77 97 76 97 76 0 10 - 10 -
stinson muni airport 77 97 75 97 76 0 10 - 10 -

Ewx watches warnings advisories
None.

Mesoscale aviation... 10
synoptic grids... Runyen
public service data collection... Williams


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Austin-Bergstrom International Airport, TX7 mi41 minS 1110.00 miA Few Clouds87°F66°F50%1015.1 hPa
Austin City, Austin Camp Mabry, TX8 mi43 minSSE 810.00 miMostly Cloudy88°F64°F45%1015.3 hPa
Austin Executive Airport, TX18 mi39 minS 810.00 miFair86°F68°F55%1016.9 hPa
Lago Vista TX, Rusty Allen Airport, TX22 mi59 minSSE 13 G 2010.00 miOvercast88°F66°F49%1017.3 hPa
San Marcos, San Marcos Municipal Airport, TX22 mi38 minSSE 910.00 miFair85°F70°F61%1015.9 hPa

Wind History from AUS (wind in knots)
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Last 24hrS10S9S7S4SW4SW6SW6S4CalmSW6SW7S7SW7S10SE9SE9S8
G14
SE8S8S6S5SE14S11S11
1 day agoS10S8S6SW4CalmS5CalmS4CalmSW7S7SW73S5SW753CalmS6SE6S8S6S4S9
2 days agoS7S7S5S9S12S9S5S3S3SW9SW9SW11S11S9
G15
S10
G16
SW4S6--S4S3CalmS3SE6S11

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
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of SouthCentralPlains    EDIT
Geos

Wind Forecast for Austin/San Antonio, TX (0,6,7,8)
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Ground Weather Radar Station Central Texas
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weather_mapweather_map weather_map

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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.