Tuesday, October17, 2017 L-36.com


Marine Weather and Tides
Castle Hills, 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 7:36AMSunset 7:01PM Tuesday October 17, 2017 7:18 PM CDT (00:18 UTC) Moonrise 4:31AMMoonset 5:07PM Illumination 6% 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 Castle Hills, TX
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location: 29.51, -98.53     debug


Area Discussion for - Austin/San Antonio, TX
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Fxus64 kewx 172341
afdewx
area forecast discussion
national weather service austin san antonio tx
641 pm cdt Tue oct 17 2017

Aviation
Vfr conditions will prevail for the valid TAF period as moisture
values remain low behind the cold front. Winds will be light and
variable tonight before becoming southerly tomorrow. There could be a
few passing mid clouds tomorrow afternoon as well.

Prev discussion issued 235 pm cdt Tue oct 17 2017
short term (tonight through Wednesday night)...

lower to mid level ridging maintains its hold tonight into Wednesday
morning. Light winds, clear skies, and a dry airmass with pws around
1 4 inch allow efficient radiational cooling with lows tonight 10 to
15 degrees below normal for mid october. Expect some low lying spots
in the hill country to have lows in the upper to perhaps mid 30s
again. Ridging drifts off to the east later on Wednesday into night
as an upper level shortwave trough approaches from the west. A
southerly flow returns. Initially, it produces slightly warmer, near
normal highs during the day. Then, increasing moisture leading to
stratus formation with much warmer lows at night.

Long term (Thursday through Tuesday)...

the upper level shortwave trough moves across texas Thursday into
Thursday night. Significant moisture returns with pws rising to near
1.5 inches leading to low chances of showers and isolated
thunderstorms by afternoon into evening. Shortwave moves off to the
east leaving weak troughiness Friday into Saturday. With only weak
forcing and instability will maintain only low chances of showers and
isolated thunderstorms Friday and Saturday. Models continue to come
into better agreement bringing a cold front across our area late
Saturday night into Sunday morning with a stronger upper level trough
on its heels. Expect a broken line of showers and thunderstorms along
the front with some stronger storms possible as instability and shear
increase. For now, though, it appears that the strongest storms will
be north and east of our area. Showers and thunderstorms move off to
the east Sunday afternoon as drier air filters into our area. A dry
pattern is expected Monday into Tuesday due to a northwesterly flow
aloft along with surface ridging. A warming trend to above normal
temperatures is expected for Thursday into Saturday night. In the
wake of the front, low temperatures cool off to below normal due to
lower dewpoints while high temperatures cool slightly to near normal.

Preliminary point temps pops
Austin camp mabry 50 82 60 82 64 0 0 0 10 20
austin bergstrom intl airport 46 81 58 81 64 0 0 0 20 20
new braunfels muni airport 47 80 58 81 65 0 0 0 20 20
burnet muni airport 46 81 56 79 62 0 0 0 10 20
del rio intl airport 50 80 59 81 66 0 0 0 - 10
georgetown muni airport 46 81 57 81 64 0 0 - 10 10
hondo muni airport 47 82 57 84 66 0 0 0 10 20
san marcos muni airport 47 81 59 81 64 0 0 0 20 20
la grange - fayette regional 47 83 60 84 65 0 0 - 20 20
san antonio intl airport 51 82 60 81 66 0 0 0 20 20
stinson muni airport 51 82 60 81 67 0 0 0 20 20

Ewx watches warnings advisories
None.

Mesoscale aviation... Hampshire
synoptic grids... Lh
public service data collection... 33


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Antonio, San Antonio International Airport, TX4 mi27 minSSE 610.00 miFair71°F43°F36%1019.9 hPa
Kelly Air Force Base, TX9 mi20 minN 010.00 miFair70°F47°F45%1020.5 hPa
San Antonio, Stinson Municipal Airport, TX13 mi25 minSSE 410.00 miFair74°F46°F37%1019.9 hPa
Randolph Air Force Base, TX13 mi22 minE 310.00 miFair69°F45°F43%1020.8 hPa
San Antonio Boerne Stage Field, TX17 mi43 minS 510.00 miFair72°F42°F36%1022 hPa
Castroville Municipal Airport, TX21 mi43 minSE 47.00 miFair75°F40°F29%1021.7 hPa

Wind History from SAT (wind in knots)
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Last 24hrN3NW3NW4NW4NW4NW6NW7NW6NW5NW5NW3NW4CalmNE5E6SE645SE6SW6SE4CalmSE3SE6
1 day agoN8N9N13
G21
N13
G19
N10N14
G22
N13
G20
N11N12
G22
N11N13
G21
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G21
N11
G21
N13
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NE9NE14
G20
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G16
N8N8N10N8N6
2 days agoSE6SE11SE10SE11S13S9S4CalmS6S5S6NW3N5N7N10N15
G25
N17
G25
N13
G20
N13
G18
N16
G22
N10
G21
N14
G21
N15
G23
N10
G18

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 (20,4,5,8)
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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.