Friday, February22, 2019 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 7:03AMSunset 6:25PM Friday February 22, 2019 5:54 AM CST (11:54 UTC) Moonrise 10:04PMMoonset 9:24AM Illumination 90% Phase: Waning Gibbous; Moon at 18 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 220935
afdewx
area forecast discussion
national weather service austin san antonio tx
335 am cst Fri feb 22 2019

Short term (today through Saturday)
Upper air analysis last evening showed a trough over the western us
with southwesterly flow over texas. At the surface, there was a
stationary front along the coast with winds from the northeast across
our CWA on the cold side of the front. Dewpoint temperatures have
increased 10 to 15 degrees over the last 24 hours. The upper trough
will move from the southwest to the middle of the country during this
period. The flow will be southwesterly today and tonight and turn to
westerly Saturday. A shortwave trough will move through the pattern
and along with the stationary front near the coast will bring some
showers to our CWA with better chances across the eastern half of
the area today. Tonight a pacific cold front will move into west
texas and then into our CWA overnight. The front should reach i-35
by around sunrise Saturday and move out of our area by mid-morning.

This will bring showers and a slight chance for thunderstorms
overnight Friday into Saturday across the entire area with a chance
for showers across the eastern half of the area until around noon.

Behind the front winds will become strong from the west to northwest.

This will bring much drier air with dewpoints dropping into the
teens and 20s west of i-35 i-37 leading to fire weather concerns. See
the fire weather discussion for more details.

Long term (Saturday night through Thursday)
The upper level trough will move off to the east and flow will become
zonal Saturday night and remain that way through the week. The low
level flow will become northerly to northeasterly Sunday and then
easterly Monday as high pressure moves across north texas. Monday
night and Tuesday an old surface boundary over the gulf will push
northward and produce sufficient isentropic lift to bring a chance
for rain to the eastern half of our cwa. Wednesday another cold front
will move through north texas and into our area. The main energy with
this system will pass to the east of us and there will only be a
slight chance for precipitation. Winds will become northerly behind
this front bringing drier, cooler air.

Fire weather
Much drier air and strong gusty winds will move in behind the cold
front Saturday. Dewpoint temperatures will drop into the teens and
20s reducing relative humidity to less than 30% across the entire
forecast area and less than 20% west of a line from burnet to san
antonio to pleasanton. Twenty foot winds across the area will be 15
to 20 mph with gusts up to 30 mph. This will mean critical fire
weather conditions and a red flag warning will likely be needed.

Preliminary point temps pops
Austin camp mabry 65 53 71 43 64 40 60 30 0 0
austin bergstrom intl airport 66 55 71 42 64 40 60 30 0 0
new braunfels muni airport 67 56 72 42 66 40 60 20 0 0
burnet muni airport 62 50 69 37 62 40 60 10 0 0
del rio intl airport 73 51 73 41 70 10 10 0 0 0
georgetown muni airport 62 51 71 39 63 50 60 30 0 0
hondo muni airport 71 55 72 42 69 30 40 10 0 0
san marcos muni airport 67 55 71 42 65 40 60 20 0 0
la grange - fayette regional 67 59 72 43 65 50 60 40 0 0
san antonio intl airport 69 57 72 44 67 30 50 10 0 0
stinson muni airport 69 57 72 44 68 30 50 10 0 0

Ewx watches warnings advisories
None.

Aviation... 04
short-term long-term... 05


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lago Vista TX, Rusty Allen Airport, TX10 mi60 minE 60.25 miDrizzle49°F47°F94%1012.9 hPa
Austin City, Austin Camp Mabry, TX11 mi64 minVar 54.00 miFog/Mist50°F46°F89%1013.2 hPa
Austin-Bergstrom International Airport, TX20 mi62 minE 70.25 miFog50°F48°F96%1012.8 hPa
Austin Executive Airport, TX22 mi60 minE 82.50 miFog/Mist48°F48°F100%1013.2 hPa
Horseshoe Bay Resort Airpark, TX24 mi60 minN 05.00 miFog/Mist50°F49°F98%1013.5 hPa

Wind History from RYW (wind in knots)
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Last 24hrE4NE4NE6E6NE5NE10NE5CalmE5NE7E7NE6E5E9NE5NE3NE4E5NE7E6E6E7E7
G14
Calm
1 day agoNW3NW4CalmCalmCalmCalmSW5W4S3SE3CalmE3SE3E7E6NE5NE5E6E8E5E5E3E4E6
2 days agoNE8NE9
G14
NE9NE9NE7NE6NE10NE8NE7N4N6NE4N3NE7NE8N3NW5NW7NW5NW5NW8NW6NW4W4

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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wmap_A
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 (6,6,7,8)
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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.