Sunday, March26, 2017 L-36.com


Marine Weather and Tides
George, 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 7:24AMSunset 7:47PM Sunday March 26, 2017 12:30 AM CDT (05:30 UTC) Moonrise 5:36AMMoonset 5:31PM 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 George, TX
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location: 30.67, -97.65     debug


Area Discussion for - Austin/San Antonio, TX
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Fxus64 kewx 260524
afdewx
area forecast discussion
national weather service austin/san antonio tx
1224 am cdt Sun mar 26 2017

Aviation
South to southeasterly flow is bringing moisture rich air into the
region and MVFR CIGS will develop in the austin and san antonio areas
over the next few hours. CIGS will lower to ifr before sunrise.

Recovery toVFR should come fairly quickly by mid-morning. Drt should
remainVFR through the period. MVFR CIGS will develop again Sunday
night at about the 24 hour point of this forecast.

Prev discussion /issued 242 pm cdt Sat mar 25 2017/
short term (tonight through Sunday night)...

clear skies with dry air in place across south central texas today.

The cold front was located along the mid texas coast into deep south
texas and is stalling. The front will return back through the area as
a warm front late tonight into Sunday morning in response to a
shortwave moving out of the southern rockies and into the southern
plains. Initially a very shallow moisture return will take place
leading to some patchy fog Sunday morning east of i-35 and the
development of some stratus along the escarpment.

There are some discrepancies with how deep the moisture become
Sunday afternoon and night and the development of a possible cap,
with the GFS a little deeper with the moisture than the nam.

Forecast soundings from the NAM also indicate a cap developing Sunday
afternoon and night limiting any potential for convection along the
tail end of the shortwave and dry line across our cwa. The GFS and
ecmwf do indicate convective development late Sunday afternoon across
the far northeast hill country and then develops it southward into
the hill country and portions of the northern i-35 corridor Sunday
night. Should convection develop Sunday afternoon and evening a
tongue of MLCAPE values of around 2000 j/kg and 40-50kt of deep layer
shear could support a risk for hail. In addition, isolated damaging
straight line winds could be possible given drier aloft and dcape
values forecast around 1000 j/kg. SPC day 2 convective outlook does
clip northern areas of the CWA in a marginal risk. Have continued
with a less than 20 pop late Sunday afternoon into Sunday night
across the north, accounting for some uncertainty if the moisture
return is less or cap does develop. Will add a mention into the hwo
as well.

Long term (Monday through Saturday)...

as the shortwave departs a weak cold front is forecast to stall
across the hill country and rio grande Monday morning and wash out
Monday afternoon and evening.

Models are then consistent with another upper level low digging
through arizona and into new mexico Tuesday with a rapid moisture
return taking place across south central texas ahead of it Tuesday
into Tuesday night. Isolated to scattered showers and storms are
possible during the day on Tuesday, favoring mainly the western third
of the CWA out across the western hill country and northern rio
grande.

Models have trended slightly slower with the upper level low beyond
Tuesday. As the upper level moves across new mexico Tuesday night
western areas of the CWA are place in a more favorable location for
convective development, with a diffluent flow aloft between the
upper level low to the northwest and sub-tropical jet streak just to
the south. As large scale ascent spreads into the area late Tuesday
night through Wednesday morning both the GFS and ECMWF are indicating
showers and storms increasing in coverage through the hill country
and possibly organizing into a complex through the i-35 corridor
early Wednesday, then moving northeast of the area Wednesday afternoon.

Gfs has trended farther north with the main ingredients for severe
storms and locally heavy rainfall, but due to run to run variations
will continue with a highlight in the hwo.

Ecmwf is slightly faster and farther north with the upper level low
ejecting out Thursday and much more robust with dry slotting over
south central texas. GFS however initiates re-development of
convection across central and eastern areas of the CWA late Wednesday
night into Thursday along the cold front. Will maintain some low
pops across this region during this time to account for the
uncertainty.

Dry conditions on Friday and then both the GFS and ECMWF indicate
another upper level system possibly impacting the CWA sometime next
weekend.

Preliminary point temps/pops
Austin camp mabry 87 66 87 67 84 / 10 10 - 10 20
austin bergstrom intl airport 87 63 87 65 84 / 10 10 - 10 20
new braunfels muni airport 87 63 87 66 84 / 10 10 - 10 20
burnet muni airport 85 61 85 63 80 / 10 10 0 10 30
del rio intl airport 92 59 91 67 87 / - 0 0 0 30
georgetown muni airport 85 63 87 64 82 / 10 10 - 10 20
hondo muni airport 90 61 89 66 86 / - 10 0 10 30
san marcos muni airport 87 64 88 66 84 / 10 10 - 10 20
la grange - fayette regional 86 67 86 68 84 / - 10 10 10 10
san antonio intl airport 88 64 88 67 84 / 10 10 - 10 20
stinson muni airport 89 64 87 67 85 / 10 10 - 10 20

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
Georgetown, Georgetown Municipal Airport, TX3 mi36 minN 010.00 miFair57°F46°F67%1013.2 hPa
Lago Vista TX, Rusty Allen Airport, TX21 mi56 minESE 610.00 miFair67°F47°F50%1013.9 hPa

Wind History from GTU (wind in knots)
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Last 24hrCalmW6NW5NW6NW5W5W5W5NW10
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--W6W5----SW3--------CalmCalmCalm
1 day agoS15
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2 days agoS12
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G24

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
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GOES Local Image of SouthCentralPlains    EDIT
Geos

Wind Forecast for Austin/San Antonio, TX (1,6,7,8)
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Ground Weather Radar Station Central Texas
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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.