Tuesday, August4, 2020
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Marine Weather and Tides
Volente, TX

Version 3.4 		NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
Sunrise 6:50AMSunset 8:24PM Tuesday August 4, 2020 12:09 AM CDT (05:09 UTC) Moonrise 8:29PMMoonset 6:39AM Illumination 100% Phase: Full Moon; Moon at 15 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 Volente, TX
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location: 30.43, -97.91     debug

Area Discussion for - Austin/San Antonio, TX
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FXUS64 KEWX 032322 AFDEWX

Area Forecast Discussion National Weather Service Austin/San Antonio TX 622 PM CDT Mon Aug 3 2020

AVIATION. Currently wind gusts up to 40 mph and occasional lightning is possible at the San Antonio sites. These hazards are expected to persist for the next half hour or so with vicinity showers persisting till later this evening. Wind and lightning threat has cleared AUS and never existed for DRT. VFR ceilings will persist overnight and winds will relax to at or below 5 knots. Besides convection this evening which should subside by 01Z for San Antonio terminals, no other hazards expected through the period.

PREV DISCUSSION. /ISSUED 504 PM CDT Mon Aug 3 2020/

UPDATE . Quick update to pull slight chances for showers and storms further to the southeast, passed the I-35 corridor. Also retrended temperatures, mainly for the Hill Country where storms that moved through have dropped temperatures into the mid to upper 70s. Convective allowing models still dissipate this activity as it moves over the I-35 corridor this evening but wanted to extend PoPs further to the southeast with new convection still firing over Bexar and northern Medina counties at this time.

PREV DISCUSSION . /ISSUED 123 PM CDT Mon Aug 3 2020/

SHORT TERM (Tonight through Tuesday Night) . Visible satellite imagery depicts a broad area of of mid-to-upper level clouds associated with a weak shortwave that is expected to fall apart as it traverses our area through tonight. A few light showers on radar as of 18Z over western Val Verde County may or may not be reaching the ground, but CI is ongoing with one cell over San Saba County as of this writing. Additional development of showers and isolated thunderstorms is expected this afternoon over the Hill Country, shifting SE through late evening before diminishing.

With a decent amount of low level dry air, DCAPE values near to above 1200 J/kg are in place, and thus any storms that do develop would have the potential to produce gusty winds. However, this threat is relatively low at this time and we remain in an SPC general thunder outlook area. The current forecast calls for precipitation to end by 03Z, however there are signals in the NAM and GEFS for some lingering activity to continue until closer to sunrise. Forecast updates may be needed if trends continue in that direction.

Clouds should gradually diminish with the weakening of the H5 vorticity axis overnight. Expecting overnight lows in the 70s, with a couple spots across the Hill Country maybe reaching the upper 60s. As upper level ridging to our west begins to slowly shift in this direction, calmer conditions are expected for Tuesday, with highs ranging from about 96 to 104. Heat indices should max out around 105.

LONG TERM (Wednesday through Monday) . The beginning of the long-term forecast will be hot and dry as upper level ridging builds in from the west. Highs will likely top out in the upper 90s to 103 degrees on Wednesday and Thursday with heat index values up to 107 degrees in the Coastal Plains. The ridge is expected to remain in place through the end of the forecast period keeping dry conditions in place for most of the area. However, models are progging enough low-level moisture beginning Friday across the extreme southeastern CWA for a slight chance of afternoon showers or storms. This diurnally driven rain chance should continue through the weekend and into Monday for the previously mentioned area. Otherwise, highs this weekend will remain in the upper 90s to near 103 degrees with the higher temperatures in the Rio Grande Plains. Lows will remain in the 70s.

PRELIMINARY POINT TEMPS/POPS. Austin Camp Mabry 77 99 77 101 76 / 20 - - 0 0 Austin Bergstrom Intl Airport 75 99 74 100 75 / 20 - - 0 0 New Braunfels Muni Airport 74 99 74 100 74 / 20 - - 0 0 Burnet Muni Airport 73 98 74 100 74 / 10 - - 0 0 Del Rio Intl Airport 77 104 77 104 78 / - 0 0 0 0 Georgetown Muni Airport 73 99 76 101 76 / 10 - - - 0 Hondo Muni Airport 74 101 73 103 74 / 20 0 0 0 0 San Marcos Muni Airport 74 99 73 101 74 / 20 - - 0 0 La Grange - Fayette Regional 75 100 76 100 76 / 20 - - - 0 San Antonio Intl Airport 76 100 76 101 76 / 20 - 0 0 0 Stinson Muni Airport 77 100 75 101 76 / 20 - - 0 0

EWX WATCHES/WARNINGS/ADVISORIES. None.

Short-Term/Aviation . EWilliams Long-Term . 05

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lago Vista TX, Rusty Allen Airport, TX6 mi75 minSSW 410.00 miFair75°F69°F81%1017.3 hPa
Austin City, Austin Camp Mabry, TX11 mi79 minSSW 310.00 miFair79°F69°F72%1015 hPa
Austin-Bergstrom International Airport, TX21 mi77 minW 410.00 miMostly Cloudy78°F71°F79%1014.6 hPa
Georgetown, Georgetown Municipal Airport, TX21 mi74 minSW 310.00 miFair76°F72°F88%1016.1 hPa

Link to 5 minute data for KRYW

Wind History from RYW (wind in knots)
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Last 24hrCalmS5SW5SW4S4S3CalmSW3W3SW4CalmSW3CalmSW4SE6SE3CalmN9
G16		N5W6W4CalmS4SW3
1 day agoCalmS4CalmSW4CalmSW3SW3W3CalmCalmW4W5W3SE7SE8E9N9NE5NE11
G17		E10
G18		E6SE7SE3S4
2 days agoCalmNW4W5W5CalmN3N4N7N7NE5NE3E4NE7NE4N6N5N6
G14		CalmCalmE5E5E5E5S3
Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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wmap_A
GEOS Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
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 numerous 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.