Monday, August10, 2020
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Marine Weather and Tides
Hudson Bend, 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 6:54AMSunset 8:18PM Monday August 10, 2020 1:58 PM CDT (18:58 UTC) Moonrise 11:32PMMoonset 12:06PM Illumination 57% Phase: Waning Gibbous; Moon at 21 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 Hudson Bend, TX
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location: 30.41, -97.93     debug


Area Discussion for - Austin/San Antonio, TX
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FXUS64 KEWX 101805 AFDEWX

Area Forecast Discussion National Weather Service Austin/San Antonio TX 105 PM CDT Mon Aug 10 2020

UPDATE. Seabreeze showers are moving into our southeast. We have expanded the area of slight chance POPs to the north and west to account for observational trends. Coverage will remain isolated and most places will not get any rain.

PREV DISCUSSION. /ISSUED 1227 PM CDT Mon Aug 10 2020/

AVIATION . Our stagnant weather pattern will continue for the next TAF period. VFR conditions will prevail through the afternoon and evening at all area airports. Winds will be out of the south at 10 to 15 kts with gusts up to 25 kts this afternoon and early evening. MVFR ceilings will develop overnight in Austin and San Antonio lasting until late morning Tuesday. DRT will stay VFR through the entire period.

PREV DISCUSSION . /ISSUED 342 AM CDT Mon Aug 10 2020/

SHORT TERM (Today through Tuesday) . The Subtropical Ridge remains centered generally over far western Texas. Subsidence under the Ridge keeps rain out of most areas. The seabreeze will not be as efficient on forcing due to weaker convergence from a stronger surface pressure gradient. Also, moisture levels (PWs) are forecast to be near or perhaps slightly below seasonal levels. Regardless, similar to the last several days, heating should be sufficient for a few showers and thunderstorms during the afternoon into early evening hours. The model consensus shows most activity over or near Lavaca county, however cannot rule out an isolated shower closer to the I-35 corridor late afternoon or early in the evening. All activity will dissipate by sunset with loss of heating.

With the thermal ridge lingering across our area, persistence will be followed on temperatures. Near seasonal humidity levels are expected as dewpoints mix out each afternoon resulting in heat index values only slightly warmer than actual temperatures. A few spots closer to the Coastal Plains may not mix as efficiently with heat index values flirting with advisory levels of 108 for an hour or two. Fortunately, the stronger surface pressure gradient will bring breezy and gusty winds during the afternoon into evening hours to take the edge off the heat.

LONG TERM (Tuesday Night through Sunday) . The subtropical ridge will continue to remain the dominant weather feature through the forecast period. The center of the ridge will initially reside over far west Texas/northern Mexico early this week, and will then gradually strengthen while moving northward into the desert southwest. For our region, we will continue to see above normal temperatures across all areas. Our current thinking is the heat will likely peak during the Wednesday through Friday time frame with temperatures only easing slightly as we head into the upcoming weekend. We could be flirting with Heat Advisory criteria across the coastal plains along with a few spots east of the I-35/I-37 corridors during the middle of this week and we will continue to monitor.

There will be a low chance for some afternoon convection near the coastal plains on Wednesday and Thursday. Some of this convection could make it slightly farther north along the Highway 77 corridor late this week, but overall rain chances will remain very low (~20%). Just beyond the current forecast period, the models continue to suggest a weakness in the upper ridge will develop over the western Gulf of Mexico. This may allow for some isolated shower and thunderstorm activity to develop farther inland, but rain chances still do not look too favorable.

PRELIMINARY POINT TEMPS/POPS. Austin Camp Mabry 78 101 77 100 76 / 0 0 0 0 0 Austin Bergstrom Intl Airport 77 100 76 100 75 / 0 0 0 0 0 New Braunfels Muni Airport 77 100 75 100 75 / 0 - 0 - 0 Burnet Muni Airport 76 98 75 100 75 / 0 0 0 0 0 Del Rio Intl Airport 78 103 79 104 79 / 0 0 0 0 0 Georgetown Muni Airport 78 100 77 101 76 / 0 0 0 0 0 Hondo Muni Airport 76 101 75 103 75 / 0 0 0 0 0 San Marcos Muni Airport 77 100 75 100 75 / - - 0 - 0 La Grange - Fayette Regional 78 99 77 100 77 / 0 - - - 0 San Antonio Intl Airport 78 100 77 101 77 / 0 - 0 - 0 Stinson Muni Airport 78 101 77 101 76 / 0 - 0 0 0

EWX WATCHES/WARNINGS/ADVISORIES. None.

Short-Term/Aviation . 05 Long-Term . YB Decision Support . KCW


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lago Vista TX, Rusty Allen Airport, TX6 mi64 minSSE 9 G 1610.00 miMostly Cloudy93°F67°F43%1019 hPa
Austin City, Austin Camp Mabry, TX11 mi68 minSSW 510.00 miA Few Clouds98°F68°F38%1016.5 hPa
Austin Executive Airport, TX19 mi64 minS 8 miPartly Cloudy91°F68°F46%0 hPa
Austin-Bergstrom International Airport, TX21 mi66 minS 13 G 1910.00 miPartly Cloudy96°F71°F44%1016.2 hPa
Georgetown, Georgetown Municipal Airport, TX23 mi63 minS 13 G 2110.00 miPartly Cloudy93°F69°F46%1017.5 hPa
Horseshoe Bay Resort Airpark, TX24 mi84 minS 12 G 2110.00 miOvercast93°F64°F39%1018.6 hPa

Link to 5 minute data for KRYW

Wind History from RYW (wind in knots)
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Last 24hrS7SE4S5
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Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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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 (14,3,4,5)
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Ground Weather Radar Station Central Texas
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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.