Saturday, December16, 2017 L-36.com


Marine Weather and Tides
Olmos Park, 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 7:20AMSunset 5:39PM Saturday December 16, 2017 6:22 PM CST (00:22 UTC) Moonrise 5:49AMMoonset 4:49PM Illumination 2% Phase: Waning Crescent; Moon at 28 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 Olmos Park, TX
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location: 29.4, -98.48     debug


Area Discussion for - Austin/San Antonio, TX
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Fxus64 kewx 170007
afdewx
area forecast discussion
national weather service austin san antonio tx
607 pm cst Sat dec 16 2017

Aviation 00z tafs
near steady moderate to heavy rain will impact the Sat ssf tafs over
the next hour and the aus TAF over the next 2 hours. Rain has cleared
well east of drt and patchy fog and ifr CIGS are already closing in
as indicated by observations to the south and east. Isolated
thunderstorms will be possible along i-35 in the next 3 hours or so,
but with no indication of discrete storm cells thus far, will keep
this out of the forecast for now. Rains should clear the i-35 taf
sites later this evening with ifr CIGS and patchy fog expected to
form readily. No vlifr conditions are in the forecasts, but lifr
conditions forecast around daybreak are a suggestion that some dense
fog conditions could arise at any of the TAF sites. CIGS should
slowly improve during the day, but not all areas are expected to
return toVFR in the afternoon. An upstream disturbance is expected
to reinforce a low cloud presence with an E to SE surface wind and
swly flow aloft.

Prev discussion issued 251 pm cst Sat dec 16 2017
short term (tonight through Sunday night)...

water vapor satellite images show an upper level low pressure system
moving over west texas and to the northeast. All hires and medium-
range models agreed on continuing to bring this system to the
northeast and into the southern plains this evening as it opens into
an upper level short-wave. As the upper level system moves to the
northeast for the rest of this afternoon and evening, light to
moderate rain is expected across the eastern two-thirds of south
central texas. There will be a window late this afternoon and early
evening for isolated thunderstorms mainly along and east of
interstate 35 as an upper level wind speed maxima moves across the
area. Also, it could enhance any activity for the period and result
in periods of heavy rain.

Overall, rainfall amounts should stay in the half to one inch range
especially along and east of i35 with the potential for up to two
inches of rainfall along and east of highway 77.

The rain chances come to an end from west to east this evening with
rain-free weather over all areas overnight tonight. Due to a warm
night and wet surfaces, expect patchy fog to develop late tonight
across much of south central texas.

Sunday should be dry with clouds lingering all day across the eastern
counties and highs in the 60s.

Long term (Monday through Saturday)...

another upper level low pressure system is forecast to slowly move
across the four corners region on Monday and brings showers and
thunderstorms across the area for the first part of next week. A cold
front passage will enhance the chances for rain on Tuesday. The cold
front and upper level energy will move to the east and southeast
with dry weather expect for Wednesday and Thursday.

Yet, another upper level disturbance and a much strong cold front is
expected on Friday. A cold airmass will spread across the area for
next weekend with lows in the 30s and highs only in the 40s.

There is still a lot of uncertainty for the extended forecast period
as far as the type of precipitation we will get if moisture is
around. We will be closely monitoring model guidance and adjusting
the forecast as you plan for the christmas holiday weekend.

Preliminary point temps pops
Austin camp mabry 43 65 52 64 57 100 0 10 30 50
austin bergstrom intl airport 42 64 51 64 58 100 0 10 30 50
new braunfels muni airport 42 64 52 66 59 90 0 10 30 50
burnet muni airport 41 64 48 62 55 80 0 - 30 40
del rio intl airport 41 59 47 64 53 - 0 - 10 30
georgetown muni airport 42 64 49 62 55 100 0 10 30 50
hondo muni airport 41 62 51 65 58 40 0 10 30 40
san marcos muni airport 42 64 51 65 59 100 0 10 30 50
la grange - fayette regional 43 65 53 67 61 100 0 20 40 50
san antonio intl airport 44 64 53 66 60 80 0 10 30 40
stinson muni airport 43 63 54 66 60 80 0 20 30 40

Ewx watches warnings advisories
None.

Mesoscale aviation... Oaks
synoptic grids... 04
public service data collection... Yb


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Kelly Air Force Base, TX5 mi26 minE 82.00 miRain Fog/Mist44°F43°F96%1015.4 hPa
San Antonio, Stinson Municipal Airport, TX5 mi29 minNW 33.00 miRain Fog/Mist45°F44°F97%1016.7 hPa
San Antonio, San Antonio International Airport, TX10 mi31 minSSW 33.00 miLight Rain Fog/Mist43°F42°F97%1016.5 hPa
Randolph Air Force Base, TX14 mi26 minN 04.00 miRain Fog/Mist43°F41°F94%1016.8 hPa
Castroville Municipal Airport, TX20 mi47 minN 05.00 miRain44°F42°F95%1016.9 hPa

Wind History from SKF (wind in knots)
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Last 24hrS6S4S4S4S4S4S3CalmCalmCalmCalmCalmCalmCalmSE3E4CalmS8W4E4CalmE7CalmE8
1 day agoNE6NE7NE12
G19
NE10
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NE9NE16
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NE15
G23
NE10N4NW4N6N6N8N8N7N8N10N9NE6NE7NE7NE5CalmS5
2 days agoCalmSW3SW3SW3SW3SW3NW3CalmCalmCalmCalmCalmCalmNW3CalmCalmN4N3CalmNW6N7N8N8N5

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 (19,4,5,8)
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Ground Weather Radar Station Austin/San Antonio, TX
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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.