Wednesday, September20, 2017 L-36.com


Marine Weather and Tides
Lakeway, 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 7:17AMSunset 7:30PM Wednesday September 20, 2017 11:19 AM CDT (16:19 UTC) Moonrise 6:39AMMoonset 7:07PM Illumination 0% Phase: New Moon; 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 Lakeway, TX
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location: 30.35, -97.98     debug


Area Discussion for - Austin/San Antonio, TX
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Fxus64 kewx 201123
afdewx
area forecast discussion
national weather service austin san antonio tx
623 am cdt Wed sep 20 2017

Update
12z aviation update.

Aviation
MVFR ceilings prevail this morning along and east of the i-35
corridor as well as through southern and eastern portions of the
hill country.VFR conditions will re-develop around 16z as stratus
mixes out. Isolated showers and storms are expected today across far
eastern areas (near and east of 3t5-vct line) as west of drt. Can't
completely rule out a few of these storms approaching drt, but
confidence is low at the moment.

Prev discussion issued 247 am cdt Wed sep 20 2017
short term (today through Thursday)...

isolated to scattered showers and few thunderstorms are possible
across the coastal plains this afternoon as courtesy of the
seabreeze. Also, isolated showers and thunderstorms are possible
across the far northwest of the area late this afternoon and early
evening as a mid short-wave disturbance moves from west into
central texas. Otherwise, the rest of the region remains dry and
warm with highs in the mid 90s most locations. Similar weather
conditions are expected on Thursday with better coverage of isolated
to scattered showers and thunderstorms along and east of interstate
35 as a result on a mid-level inverted trough pushing westward from
the upper texas coast into our area.

Long term (Thursday night through Tuesday)...

not a whole lot of activity expected for the latter part of the work
week into the weekend with the exception of isolated to scattered
showers and few storms along the coastal plains. The weather
pattern begins to change Sunday into the first part of next week
with rain expected across all of south central texas during this
period. Increased moisture arriving from the gulf of mexico and
eastern pacific in combination with a frontal boundary pushing down
into our area will result in widespread rains during the extended
forecast period. The GFS and ecm models have a fair idea where the
rain will fall, but differ on the position of the frontal
boundary lifting mechanism. With that said, the extended forecast
will be monitored and updated accordingly to reflect latest guidance
solutions and the possibility of heavy rains especially along the rio
grande and edwards plateau.

Preliminary point temps pops
Austin camp mabry 95 77 91 74 92 - - 20 10 10
austin bergstrom intl airport 94 75 90 72 90 - - 20 10 10
new braunfels muni airport 95 76 91 73 91 10 10 20 10 10
burnet muni airport 93 73 89 71 89 - - 10 10 10
del rio intl airport 99 77 95 75 94 10 10 10 10 10
georgetown muni airport 94 75 92 73 90 - - 20 10 10
hondo muni airport 98 76 94 73 94 - 10 20 10 10
san marcos muni airport 95 75 91 72 91 10 10 20 10 10
la grange - fayette regional 92 76 90 72 91 20 10 40 10 20
san antonio intl airport 95 77 91 74 91 - 10 20 10 10
stinson muni airport 96 77 91 74 92 - - 20 10 10

Ewx watches warnings advisories
None.

Mesoscale aviation... Runyen
synoptic grids... 17


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lago Vista TX, Rusty Allen Airport, TX10 mi45 minSSW 9 G 1710.00 miOvercast83°F72°F69%1014.9 hPa
Austin City, Austin Camp Mabry, TX11 mi29 minS 710.00 miMostly Cloudy86°F73°F65%1012.9 hPa
Austin-Bergstrom International Airport, TX20 mi27 minS 14 G 2310.00 miPartly Cloudy87°F73°F65%1012.6 hPa
Austin Executive Airport, TX22 mi25 minSSW 910.00 miMostly Cloudy82°F73°F74%1014.2 hPa
Horseshoe Bay Resort Airpark, TX24 mi45 minS 5 G 1510.00 miPartly Cloudy85°F70°F63%1014.6 hPa

Wind History from RYW (wind in knots)
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Last 24hrSW7S7S10S7S7SE8S9
G15
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1 day agoSW7S7SW3SE3CalmS5S4S5SE5SE7
G14
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S5S7S6S5SW7S5S3S3S7S8S12
G16
2 days agoS4S8S7E5SE6SE5SE5SE5SE3E5E6E6E7E7SE4SE4S4S3S4SW4SW5CalmSW4SW6

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 (12,3,4,5)
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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.