Tuesday, August4, 2020
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Marine Weather and Tides
Lakeway, 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 8:23PM Tuesday August 4, 2020 8:23 AM CDT (13:23 UTC) Moonrise 8:29PMMoonset 6:40AM 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 Lakeway, TX
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location: 30.35, -97.98     debug

Area Discussion for - Austin/San Antonio, TX
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FXUS64 KEWX 041148 AFDEWX

Area Forecast Discussion National Weather Service Austin/San Antonio TX 648 AM CDT Tue Aug 4 2020

UPDATE. /ADDED SLIGHT POPS CENTRAL/ The last round of NW flow aloft convection is moving mainly down the Hwy 281 corridor this morning. Will trust most of the model accounts that this activity will dissipate later in the morning. Was halfway expecting a random shower or two in the early morning package, just thought the coverage would have been too low to mention at that time.

AVIATION. /12Z TAFS/ Only significant feature for the I-35 TAFs is a few clusters of showers that should dissipate by around 15z no other convection is expected. At DRT, southerly winds are picking up, so the usual 3 line TAFs are to account for the diurnal direction changes. No low clouds are anticipated for any of the TAF locations.

PREV DISCUSSION. /ISSUED 313 AM CDT Tue Aug 4 2020/

SHORT TERM (Today through Wednesday) . After a more thorough coverage of rain over central counties Monday, temps are likely to remain closer to normal for one more day over the I-35 corridor, while western and eastern reaches of the CWA get a head start on a warming trend. GFS and NAM solutions depicted some residual convection in the moisture laden area eastern counties early this morning, but radar and satellite trends don't seem to be picking up on anything happening anytime soon. Convective allowing models show an isolated cell or two over the far eastern counties so will assume the rain chance for today will have progressed east into the HGX forecast area while the mid level anticyclonic flow pattern strengthens eastward into Central TX.

With the H7 ridge directly overhead for Wednesday, the temps should finally go back to the typical early August values of the upper 90s and lower 100s over most of the area. The surface winds for today will again be mostly light, which should keep surface dewpoints from creating much of a heat index boost. Slightly more onshore flow is expected for Wednesday and that should bring low 100s heat index values back for most of South Central TX.

LONG TERM (Wednesday Night through Monday) . The Subtropical Ridge centered over Texas expands over the southern states through early next week. Subsidence under the Ridge and dry air aloft keeps rain out of the forecast for most areas. Mid level flow turns southeasterly advecting in deeper moisture into parts of our area by this weekend. This allows the seabreeze to bring a few showers and thunderstorms into our counties near the Coastal Plains during the late morning into afternoon hours on Saturday and Sunday. High temperatures will remain a few degrees above normal. Afternoon heat index values in the mid to upper 90s Hill Country and 100 to 107 elsewhere can be expected.

PRELIMINARY POINT TEMPS/POPS. Austin Camp Mabry 98 76 100 75 102 / 20 0 0 0 0 Austin Bergstrom Intl Airport 97 73 99 75 100 / 20 - 0 0 0 New Braunfels Muni Airport 97 73 100 74 102 / 20 0 0 0 0 Burnet Muni Airport 96 74 99 73 100 / 20 0 0 0 0 Del Rio Intl Airport 103 76 102 77 104 / 0 0 0 0 0 Georgetown Muni Airport 96 76 99 75 100 / 20 - 0 0 0 Hondo Muni Airport 98 73 100 74 102 / - 0 0 0 0 San Marcos Muni Airport 97 73 99 74 100 / 20 0 0 0 0 La Grange - Fayette Regional 98 74 98 76 100 / 20 - 0 0 - San Antonio Intl Airport 96 75 99 75 101 / 10 0 0 0 0 Stinson Muni Airport 96 73 101 75 100 / 10 0 0 0 0

EWX WATCHES/WARNINGS/ADVISORIES. None.

Short-Term/Aviation . Oaks Long-Term . 04

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lago Vista TX, Rusty Allen Airport, TX10 mi29 minN 07.00 miFair72°F71°F97%1018.6 hPa
Austin City, Austin Camp Mabry, TX11 mi33 minN 010.00 miMostly Cloudy77°F71°F82%1016.4 hPa
Austin-Bergstrom International Airport, TX20 mi31 minESE 310.00 miMostly Cloudy78°F72°F82%1016.1 hPa
Horseshoe Bay Resort Airpark, TX24 mi47 minS 37.00 miLight Rain75°F69°F83%1017.9 hPa

Link to 5 minute data for KRYW

Wind History from RYW (wind in knots)
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Last 24hrSW4CalmSW3CalmSW4SE6SE3CalmN9
G16		N5W6W4CalmS4SW3CalmCalmW4W5W5W5NW5CalmCalm
1 day agoCalmW4W5W3SE7SE8E9N9NE5NE11
G17		E10
G18		E6SE7SE3S4CalmS5SW5SW4S4S3CalmSW3W3
2 days agoNE5NE3E4NE7NE4N6N5N6
G14		CalmCalmE5E5E5E5S3CalmS4CalmSW4CalmSW3SW3W3Calm
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 (9,2,3,4)
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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.