Tuesday, November13, 2018 L-36.com


Marine Weather and Tides
Lakeway, TX

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:54AMSunset 5:36PM Tuesday November 13, 2018 12:28 AM CST (06:28 UTC) Moonrise 12:04PMMoonset 10:47PM Illumination 26% Phase: Waxing Crescent; Moon at 5 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 130547
afdewx
area forecast discussion
national weather service austin san antonio tx
1147 pm cst Mon nov 12 2018

Update
Area radars show bands of light snow over the edwards plateau to the
big bend. Latest hrrr shows these bands moving across our area
overnight into early Tuesday morning. Have updated the forecasts, to
include snow. Due to warm surfaces and strong winds, expect no
accumulations at this time. Should bands increase in intensity, then
light accumulations may be possible. No other updates needed at this
time.

Prev discussion issued 1052 pm cst Mon nov 12 2018
aviation...

no significant changes from the ongoing tafs. The austin and san
antonio airports have MVFR ceilings and this will continue through
the overnight. The ceiling at drt isVFR and will remain that way
through the entire period. The ceilings at austin and san antonio
will increase toVFR within a couple of hours of sunrise. North
winds will continue at 15 to 20 kts with gusts to 30 through Tuesday
afternoon. Skies should become mostly clear by late afternoon or
early evening.

Prev discussion... Issued 917 pm cst Mon nov 12 2018
update...

forecast for this evening into Tuesday morning is on track.

Temperatures have dropped already to the 32 degrees mark over some
spots across the hill country. This trend is expected to continue
overnight over areas along and west of interstate 35 and north of
highway 90 through Tuesday morning. A freeze warning is in effect
for the areas mentioned above through 10 am Tuesday. Breezy northerly
winds of 15 to 25 mph will help temperatures to feel (wind chill
factor) in the teens across the hill country and low to mid 20s rest
of south central texas Tuesday morning. Highs will range from the
lower 40s to lower 50s areawide on Tuesday.

Another but areawide freeze is expected across south central texas
Tuesday night into Wednesday morning. Light winds and clear skies
will help temperatures to drop into the low to mid 20s across the
hill country and mid to upper 20s elsewhere.

Prev discussion... Issued 239 pm cst Mon nov 12 2018
short term (tonight through Tuesday night)...

the cold front has pushed south through the CWA and has left behind
breezy northerly winds. Wind speeds remain around 15-25 mph with
higher gusts. All sites are below wind advisory criteria and should
remain that way through the evening. Light rain drizzle continues to
slowly end from west to east as drier air begins to filter into the
region. All activity should end by the beginning of the the tonight
period and will show a dry forecast for the short-term forecast.

Cloud cover will likely hold on for most areas tonight which will
help with temperatures somewhat. However, areas within the current
freeze warning are expected to reach 32 degrees or lower tonight and
see no reasons to make any changes to the freeze warning.

For tomorrow, skies should finally clear but temperatures will only
get into the lower to upper 40s with continued north winds around
10-20 mph continuing the cold air advection. Winds will begin to
diminish tomorrow night, and the clear skies, light winds, and very
dry air will allow for near optimal radiational cooling conditions.

Lows will likely be in the 20s for the entire cwa. Will need another
freeze warning for the counties that do not see a freeze tonight, and
this will likely be issued by tomorrow morning. It is not a frequent
occurrence that our office can end its initial freeze warning
program in one initial event, but this looks to be the case.

Long term (Wednesday through Monday)...

dry weather will continue through the beginning of the long-term
forecast. Another freeze will be likely for most of the area
Wednesday night after highs Wednesday in the 50s. A slow warming
trend will continue through the weekend before the next front looks
to arrive around Sunday. Models have come in a bit wetter with this
front and will introduce a 20 pop for the western half of the area
Sunday. Models continue to show lingering rain chances into Monday
but will hold off on multiple days of pops until there is more
consistency in the medium-range guidance. If this trend continues,
pops will need to be expanded and increase across the area for the
end of the long-term portion of the forecast.

Preliminary point temps pops
Austin camp mabry 31 45 30 52 35 20 - - - 0
austin bergstrom intl airport 33 45 28 52 30 20 - - - 0
new braunfels muni airport 33 47 27 53 29 20 - - - 0
burnet muni airport 29 43 26 50 30 20 - 0 0 0
del rio intl airport 35 50 29 58 35 20 - 0 0 -
georgetown muni airport 30 43 27 50 31 20 - - - 0
hondo muni airport 33 49 26 55 31 20 - 0 0 -
san marcos muni airport 33 45 27 52 30 20 - - - 0
la grange - fayette regional 34 45 28 50 29 20 - - - 0
san antonio intl airport 33 47 27 54 31 20 - - - -
stinson muni airport 34 48 28 54 31 20 - - - -

Ewx watches warnings advisories
Freeze warning until 10 am cst Tuesday for bandera-bastrop-bexar-
blanco-burnet-caldwell-comal-edwards-gillespie-guadalupe-hays-
kendall-kerr-kinney-lee-llano-medina-real-travis-uvalde-val verde-
williamson.

Aviation... Treadway
short-term long-term... 04


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lago Vista TX, Rusty Allen Airport, TX10 mi34 minN 10 G 2010.00 miOvercast35°F31°F85%1029.5 hPa
Austin City, Austin Camp Mabry, TX11 mi98 minN 7 G 1510.00 miOvercast38°F30°F73%1031.4 hPa
Austin-Bergstrom International Airport, TX20 mi36 minN 18 G 2210.00 miOvercast and Breezy40°F30°F70%1030.4 hPa
Austin Executive Airport, TX22 mi34 minN 1410.00 miOvercast37°F32°F81%1030.5 hPa
Horseshoe Bay Resort Airpark, TX24 mi34 minN 13 G 2310.00 miOvercast36°F29°F76%1031.2 hPa

Wind History from RYW (wind in knots)
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Last 24hrNE5NE7NE7NE5N4NE3N7N8
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1 day agoS5CalmSE3S3CalmCalmE3E3E3SE4S3CalmE4CalmE3E4E6E6E8NE7NE9NE7NE7N3
2 days agoNE5NE5NE7NE6NE4NE7NE5E5NE5E5E5E4NE3E5NE6E4E5E4E3E4SE4E3CalmS4

Tide / Current Tables for
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Weather Map and Satellite Images
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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 Austin/San Antonio, TX (1,6,7,8)
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Ground Weather Radar Station Central Texas
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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.