Wednesday, January24, 2018 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 7:24AMSunset 6:01PM Tuesday January 23, 2018 11:34 PM CST (05:34 UTC) Moonrise 11:30AMMoonset 12:00AM Illumination 50% Phase: First Quarter Moon; Moon at 7 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 240453
afdewx
area forecast discussion
national weather service austin san antonio tx
1053 pm cst Tue jan 23 2018

Update
06z aviation forecast below.

Aviation
Vfr conditions over the next 24-36 hours with sct-bkn high cirrus
across southeast half of the region. Winds variable 5 kts or less
overnight and becoming NE to E 5-10 kts after 15z at Sat aus and se
around 10 kts with a few higher gusts possible at drt after 18z.

Prev discussion... Issued 228 pm cst Tue jan 23 2018
short term (tonight through Wednesday night)...

a dry atmosphere continues to be in place across south-central texas
this afternoon with dewpoints in the 10-20 degree range. Temperatures
have warmed up into the 60s across much of the area and this is
leading to humidity values in the 15 to 20 percent range. Otherwise,
light winds continue with passing high clouds over the area. For
tonight, dry air, light winds, and mostly clear skies will allow
temperatures to drop into the 20s and 30s with another freeze
expected for the hill country and low-lying areas along the i-35
corridor. For tomorrow, light east northeast flow will continue and
highs will remain close to today's values, in the 60s across the
region. For tomorrow night, another night in the 30s is once again
expected.

Long term (Thursday through Tuesday)...

south flow will finally return Thursday as a shortwave approaches the
plains. This will allow for low-level moisture to begin to increase
and lows Thursday night will only be in the 40s to near 50 degrees.

As the low-level moisture increases, theta-e advection will lead to
low chances of light rain showers for the eastern two-thirds of the
area Thursday night and Friday. On Friday afternoon, a large trough
axis will push the northern plains and this will send a cold front
south into the region Saturday afternoon. This front will keep the
chances for rain around and weak instability levels could lead to a
few thunderstorms as the front moves through in the afternoon hours.

There still remains differences between the gfs ECMWF on the
strength of the cold front. The ECMWF continues to be stronger with
the front and clears things out pretty quick while the GFS is a bit
weaker. The GFS has slightly trended towards the ECMWF and will
continue to favor that solution in the official forecast.

Temperatures on Sunday Monday will remain in the 60s with lows in the
30s and 40s. South flow should return Tuesday, leading to
temperatures being a few degrees warmer.

Preliminary point temps pops
Austin camp mabry 37 63 38 64 49 0 0 0 - 20
austin bergstrom intl airport 30 62 32 63 47 0 0 0 - 20
new braunfels muni airport 33 63 35 62 47 0 0 0 - 20
burnet muni airport 32 61 35 61 47 0 0 0 - 20
del rio intl airport 36 64 39 63 46 0 0 0 0 -
georgetown muni airport 30 62 33 62 47 0 0 0 - 20
hondo muni airport 32 65 33 62 47 0 0 0 - 20
san marcos muni airport 34 63 34 62 48 0 0 0 - 20
la grange - fayette regional 36 63 37 64 50 0 0 0 - 20
san antonio intl airport 35 64 37 62 51 0 0 0 - 20
stinson muni airport 37 65 37 63 50 0 0 0 - 20

Ewx watches warnings advisories
None.

Mesoscale aviation... Runyen
synoptic grids... 17
public service data collection... Williams


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lago Vista TX, Rusty Allen Airport, TX10 mi60 minno data10.00 miFair47°F22°F37%1027.8 hPa
Austin City, Austin Camp Mabry, TX11 mi44 minN 0 miFair41°F25°F53%1028.5 hPa
Austin-Bergstrom International Airport, TX20 mi42 minW 410.00 miPartly Cloudy37°F28°F73%1028.3 hPa
Austin Executive Airport, TX22 mi60 minN 010.00 miFair46°F23°F40%1028.1 hPa
Horseshoe Bay Resort Airpark, TX24 mi60 minN 010.00 miFair36°F24°F63%1028.1 hPa

Wind History from RYW (wind in knots)
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Last 24hrNW6----------------CalmNE4NE4CalmNE4NE5NE3NE4NE3E3E4E4E4E4Calm
1 day agoW5NW5W3W4NW10
G16
NW8NW7NW7NW7NW11
G21
NW11
G20
N10
G16
N10
G18
NW16
G21
W14
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NW9
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NW5NW6NW7N6N6NW6
2 days agoS8
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S7S3S9S9
G14
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G21
SW9
G15
S12
G19
SW7
G16
S7
G16
S8S6S3S4S5W6

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.