Sunday, November19, 2017 L-36.com


Marine Weather and Tides
Sunset Valley, 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 6:59AMSunset 5:33PM Sunday November 19, 2017 3:41 PM CST (21:41 UTC) Moonrise 7:53AMMoonset 6:46PM Illumination 1% Phase: Waxing Crescent; Moon at 1 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 192112
afdewx
area forecast discussion
national weather service austin san antonio tx
312 pm cst Sun nov 19 2017

Short term (tonight through Monday night)
Pleasant and cool late fall weather conditions are in place across
south central texas as temperatures have only climbed into the 60s
with mostly clear skies and NE 5-10 mph winds under high pressure.

Patchy high clouds associated with the right entrance region of a jet
streak aloft and weak midlevel shortwave west of big bend are moving
into central texas. This cloud cover should increase to some extent
as the shortwave pushes into south central texas overnight, but this
should only have a small effect on low temperatures overnight. Winds
tonight will generally be light and variable and skies will be mostly
clear especially for spots along and east of i-35, so our forecast
low temperatures range from the mid 30s in the hill country and low-
lying spots along the i-35 corridor to lower 40s elsewhere. This
forecast is bit cooler than model guidance which tends to struggle
on nights with more efficient radiational cooling, but the high
clouds should be enough to prevent spots from falling below freezing
as supported by even the lowest ensemble members in the MOS guidance.

High temperatures will increase a few degrees tomorrow as southerly
flow returns and scattered high clouds associated with the shortwave
remain and weak w-e isentropic ascent overspreads the region. A very
isolated shower may occur in our southeastern-most counties
associated with this large-scale lift, but nearly all models keep
this activity well south and east of the region. Low temperatures on
Monday night into Tuesday morning will be several degrees warmer than
tonight in the upper 40s and low 50s as scattered to broken low
clouds develop over the region. A few hi-res models suggest that
patchy fog may be possible as well, but this will most likely depend
on the coverage and timing of low cloud development.

Long term (Tuesday through Sunday)
Dry weather will generally continue for at least the next week and a
half. A stronger shortwave will dig into east texas on Tuesday
afternoon and evening to allow another cold front to move through the
region. Dry southwest flow behind a pre-frontal surface trough just
ahead of the front should allow temperatures to warm up into the mid
to upper 70s on Tuesday afternoon. Although we will have decent w-sw
to e-ne oriented isentropic ascent across the region, moisture return
aloft will be limited and the best dynamics from the shortwave will
be east of the region. The GFS does bring some very isolated shower
activity into our eastern-most counties Tuesday night into Wednesday
morning, but this does not seem consistent with isentropic descent
at midlevels so we have left this out of the forecast. Wednesday will
be another cool fall day under high pressure and northerly flow
similar to today before we warm back up above normal for Thursday
through Saturday as southerly flow returns. Another front is expected
next Saturday evening, but its effect on temperatures will most
likely be very weak as high pressure aloft continues to build over
mexico and slide east towards texas for last week of november.

Preliminary point temps pops
Austin camp mabry 41 67 50 76 49 0 - - - -
austin bergstrom intl airport 36 67 49 76 49 0 - - - -
new braunfels muni airport 40 67 49 76 49 0 - - - -
burnet muni airport 39 64 46 73 45 0 - - - -
del rio intl airport 42 68 45 78 47 0 0 0 0 0
georgetown muni airport 38 65 49 74 47 0 - - - -
hondo muni airport 39 68 47 78 48 0 - 0 0 -
san marcos muni airport 39 66 49 77 49 0 - - - -
la grange - fayette regional 40 68 51 75 51 0 - - - 10
san antonio intl airport 40 68 51 76 51 0 - - 0 -
stinson muni airport 42 68 50 77 51 0 - - 0 -

Ewx watches warnings advisories
None.

Mesoscale aviation... 04
synoptic grids... Lh
public service data collection... Treadway


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Austin-Bergstrom International Airport, TX7 mi48 minN 810.00 miMostly Cloudy64°F30°F29%1024.4 hPa
Austin City, Austin Camp Mabry, TX8 mi50 minVar 310.00 miFair64°F0°F%1024.8 hPa
Austin Executive Airport, TX18 mi66 minNE 105.00 miFair with Haze63°F28°F27%1025.1 hPa
Lago Vista TX, Rusty Allen Airport, TX22 mi46 minE 410.00 miFair62°F27°F28%1024.7 hPa
San Marcos, San Marcos Municipal Airport, TX22 mi45 minNE 1010.00 miFair64°F28°F26%1024.3 hPa

Wind History from AUS (wind in knots)
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Last 24hrN23
G32
N15
G28
N18
G27
N17
G30
N12N14
G23
N18N16N12N13N13N9N7N7NW7NW4NW4N9N9NE9NE8
G18
NE6N10N8
1 day agoS17
G24
S13
G22
S9S7S13S13S15
G21
S13S14
G20
S11SW17
G22
S20
G29
SW16
G29
SW13SW11
G19
SW9SW9SW10
G16
SW10
G19
W8N17
G27
N22
G33
N23
G31
N24
G32
2 days agoSE9SE8SE5E5SE5SE5S8S10S9S10S10S9S12S10S10S8S10S14S13
G21
SW17
G21
SW13S15
G21
S15
G28
S15
G23

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
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IR Satellite Image from GEOS
east_satellite

GOES Local Image of SouthCentralPlains    EDIT
Geos

Wind Forecast for Austin/San Antonio, TX (16,3,4,5)
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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.