Sunday, January26, 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 7:24AMSunset 6:03PM Sunday January 26, 2020 5:20 AM CST (11:20 UTC) Moonrise 8:47AMMoonset 7:50PM Illumination 2% 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 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 260921 AFDEWX

Area Forecast Discussion National Weather Service Austin/San Antonio TX 321 AM CST Sun Jan 26 2020

SHORT TERM (Today through Monday). Widespread fog across South Central Texas with Dense Fog Advisory in effect until 9AM. Dry air begins to filter in this morning and clouds will clear from northwest to southeast behind a weak cold front. Temperatures still above normal today with highs in the mid 70s with mostly clear skies. Overnight lows will be in the mid to upper 40s with the drier air in place. Northwest winds switch back to southeasterly by Monday morning and moisture recovers. Mondays highs will again be in the 70s for most of the area with fair skies and light winds.

LONG TERM (Monday Night through Saturday). An upper level shortwave trough will move quickly through South Central Texas late Monday night through Tuesday morning. Dynamical forcing appears good with this system, with time height progs showing strong mid-level vertical ascent atop a relatively shallow stable layer. We are anticipating a complex of elevated showers and embedded thunderstorms to develop across the southwestern Edwards Plateau and Rio Grande after midnight and move east into the I-35 corridor shortly before sunrise on Tuesday morning. This is indicated by most global models as well as the 3KM NAM12 and 3KM Texas Tech WRF that now go out through this time frame. While instability parameters aren't great, the amount of forcing, combined with sufficient deep layer shear, could result in a stronger storm or two capable of producing small hail.

The system is forecast to quickly move east of the I-35 corridor by midday Tuesday with drier air filtering into the area from west to east behind a cold front. Windy conditions behind the front are forecast to develop down the Rio Grande, and combined with the drier air could result in a period of elevated fire weather conditions Tuesday afternoon across this region.

Cooler and dry conditions are forecast for Wednesday. Another upper level system is currently indicated by global models to dig further south than the previous system. Wednesday night an upper level low is indicated the be digging into northwest Mexico, west of the Big Bend. There are some differences between the ECMWF and GFS on how and where the energy ejects northeast into Texas and how it phases into a digging northern stream trough Thursday and Friday. Therefore PoPs are capped at less than 50% during this time. Next weekend appears dry and warm.

Climate. A freeze is not forecast through the remainder of January at San Antonio, Austin Camp Mabry, or Del Rio. Assuming a freeze does not occur through the end of the month this will be the first time since 1939 that San Antonio has not had a freeze in the month of January, since 1950 at Del Rio, and since 2006 at Austin Camp Mabry.

Here are the years where it did not freeze in the month of January for our climate sites:

San Antonio . 1921 / 1923 / 1932 / 1939 Austin Camp Mabry . 1923 / 1986 / 1990 / 1998 / 2006 Austin Bergstrom . 1945 / 1952 / 1983 Del Rio . 1939 / 1941 / 1950

PRELIMINARY POINT TEMPS/POPS. Austin Camp Mabry 74 46 76 53 68 / - 0 0 60 60 Austin Bergstrom Intl Airport 74 45 75 52 70 / 10 0 0 60 60 New Braunfels Muni Airport 76 47 75 52 70 / - 0 0 60 60 Burnet Muni Airport 71 45 73 51 65 / 0 0 0 60 40 Del Rio Intl Airport 79 47 79 51 70 / 0 0 0 30 - Georgetown Muni Airport 71 45 72 52 67 / - 0 0 60 60 Hondo Muni Airport 78 47 76 51 72 / 0 0 0 60 30 San Marcos Muni Airport 75 45 73 51 70 / 10 0 0 60 60 La Grange - Fayette Regional 74 46 72 53 70 / 10 0 0 30 60 San Antonio Intl Airport 78 49 76 53 70 / - 0 0 60 50 Stinson Muni Airport 76 49 77 54 71 / - 0 0 60 50

EWX WATCHES/WARNINGS/ADVISORIES. Dense Fog Advisory until 9 AM CST this morning for Atascosa-Bandera- Bastrop-Bexar-Blanco-Burnet-Caldwell-Comal-De Witt-Dimmit-Edwards- Frio-Gillespie-Gonzales-Guadalupe-Hays-Karnes-Kendall-Kerr-Kinney- Llano-Maverick-Medina-Real-Travis-Uvalde-Val Verde-Williamson- Wilson-Zavala.



Short-Term/Aviation . YB Long-Term/Climate . Runyen

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lago Vista TX, Rusty Allen Airport, TX6 mi26 minWSW 60.15 miHeavy Drizzle55°F54°F100%1015.2 hPa
Austin City, Austin Camp Mabry, TX11 mi30 minN 07.00 miOvercast59°F55°F90%1014.5 hPa
Austin Executive Airport, TX18 mi46 minN 00.25 miFog57°F57°F100%1015.2 hPa
Austin-Bergstrom International Airport, TX21 mi28 minN 01.50 miFog/Mist58°F57°F100%1014.3 hPa
Georgetown, Georgetown Municipal Airport, TX21 mi25 minW 40.50 miFog54°F54°F100%1015 hPa

Link to 5 minute data for KRYW

Wind History from RYW (wind in knots)
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Last 24hrS7S6S6S8SE10
G14		S7S8S8
G14		S13
G20		S7S7
G16		S8S7S8
G15		S5S4S4S3S3SW3CalmSW3SW6W5
1 day agoW7W5W5W7W5CalmNE4NE3CalmE3SW4S3CalmSE3SE3SE4SE4SE5SE5SE4S6S5S5S6
2 days agoW9W11
G17		W9N10
G17		NW6NW7NW6N6N6N7N7
G14		N8N6NE6NE4NE4NE6NE4W3N6N7W4W5W6
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 (6,6,7,8)
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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 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.