Saturday, March25, 2017 L-36.com


Marine Weather and Tides
Sunset Valley, TX

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 7:25AMSunset 7:47PM Saturday March 25, 2017 6:33 AM CDT (11:33 UTC) Moonrise 4:55AMMoonset 4:29PM Illumination 5% Phase: Waning Crescent; Moon at 27 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 251126
afdewx
area forecast discussion
national weather service austin/san antonio tx
626 am cdt Sat mar 25 2017

Aviation
Mostly clear skies will meanVFR conditions at all area airports
through the day and evening today. Winds will be light from the
northwest through the day and then shift to the southeast. Models
are showing the return of low clouds overnight in austin and san
antonio with MVFR CIGS developing around 09z and lasting until late
morning Sunday.

Prev discussion /issued 434 am cdt Sat mar 25 2017/
short term (today through Sunday)...

as an upper level low centered over far eastern oklahoma moves
further to the east, a weak cold front surging south has pushed off
the escarpment. It will exit to the southeast of our area by around
sunrise and cannot rule out an isolated shower or two along it near
the coastal plains. Surface high pressure briefly builds into our
area this morning maintaining a dry airmass, then moves off to the
east this afternoon into evening as an upper level trough over
coastal southern california approaches the four corners region
causing surface pressure falls in the southern plains. Southerly
winds return this evening into tonight with increasing lower level
moisture leading to stratus by Sunday morning. The upper level trough
moves out into the central and southern plains on Sunday with a
stronger pressure gradient causing some locally breezy winds and
mixing out the stratus by midday.

Long term (Sunday night through Friday)...

the upper level trough continues moving east across the plains.

Moisture convergence along and just east of the dryline may allow
for showers and thunderstorms across the eastern hill country to
along the i-35 corridor Sunday evening. However, a strong capping
inversion with dry air above will inhibit convective development and
only isolated coverage at the most is expected. Another strong upper
level low moves across the southern plains during the middle of the
next week. Upward forcing increases with isolated to scattered
showers and thunderstorms developing on Tuesday and becoming more
numerous Tuesday night into Wednesday. There is still a potential for
strong to severe storms and locally heavy rainfall with this system.

A recent trend in the gfs, has troughing hanging back until Thursday
into Thursday night while the ECMWF keeps the low intact moving
across Wednesday into Wednesday night. For now, have ended pops from
west to east Wednesday into Wednesday night with lingering slight
pops along the highway 77 corridor on Thursday. Fair weather is
expect on Friday. Other upper level systems are expected beyond this
forecast for next weekend into the following week with additional
rounds of showers and thunderstorms.

Fire weather...

periods of elevated fire weather conditions are expected for the next
several days with the greatest chances out west Sunday, Wednesday,
and Thursday.

Preliminary point temps/pops
Austin camp mabry 83 59 87 64 87 / 0 - 10 10 0
austin bergstrom intl airport 82 56 87 63 86 / 0 - 10 10 0
new braunfels muni airport 84 58 88 63 88 / 0 - 10 10 0
burnet muni airport 79 56 85 59 84 / 0 0 10 10 0
del rio intl airport 84 59 91 58 90 / 0 0 - - 0
georgetown muni airport 79 56 86 62 84 / 0 0 10 10 0
hondo muni airport 86 59 90 61 90 / 0 - 10 10 0
san marcos muni airport 82 57 88 64 87 / 0 - 10 10 0
la grange - fayette regional 79 59 86 66 85 / 0 - - 10 -
san antonio intl airport 84 60 88 63 88 / 0 - 10 10 0
stinson muni airport 86 60 90 63 88 / 0 - 10 10 -

Ewx watches/warnings/advisories
None.

Mesoscale/aviation... 05
synoptic/grids... 04


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Austin-Bergstrom International Airport, TX7 mi40 minN 310.00 miFair51°F45°F80%1015.9 hPa
Austin City, Austin Camp Mabry, TX8 mi42 minN 010.00 miFair56°F42°F60%1015.9 hPa
Lago Vista TX, Rusty Allen Airport, TX22 mi58 minN 010.00 miFair58°F40°F51%1016.3 hPa
San Marcos, San Marcos Municipal Airport, TX22 mi38 minNNW 910.00 miFair54°F41°F63%1016.6 hPa

Wind History from AUS (wind in knots)
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Last 24hrS6SE4S6S6S6S12S19
G24
S10
G20
S15
G21
W9S13
G20
S15
G21
SW10S8S6S7SW6S5SW6NW13
G19
SW3CalmCalmN3
1 day agoS11S8S10S16
G23
S21
G27
S14
G25
S23
G31
S21
G28
S22
G30
S24
G31
SE24
G31
S21
G33
S15
G27
S14
G21
SE20
G25
SE15
G22
SE20
G25
S12
G21
S14
G20
S13S15S14
G23
S17
G26
S14
G22
2 days agoS8S5S8S10S7S10S9S10SE11S11S13S12SE10S9S8S7S10S9S13S10S9
G21
S11S11S9

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 (7,2,3,4)
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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.