Saturday, December14, 2019
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Marine Weather and Tides
Bertram, TX

Version 3.4 		NOTICE
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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen
Sunrise 7:19AMSunset 5:33PM Saturday December 14, 2019 6:32 AM CST (12:32 UTC) Moonrise 8:09PMMoonset 9:37AM Illumination 92% Phase: Waning Gibbous; Moon at 17 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 Bertram, TX
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location: 30.79, -98     debug

Area Discussion for - Austin/San Antonio, TX
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FXUS64 KEWX 141136 AFDEWX

Area Forecast Discussion National Weather Service Austin/San Antonio TX 536 AM CST Sat Dec 14 2019

AVIATION /12Z TAFs/. VFR conditions will prevail with light northwest to west winds becoming south to southeast between 15-18Z.

PREV DISCUSSION. /ISSUED 316 AM CST Sat Dec 14 2019/

SHORT TERM (Today through Sunday) . A nice weekend is in store for South Central Texas with Sunny skies and temperatures well above normal for the middle of December. While one trough surges towards the eastern CONUS and the next approaches California today the upper level pattern will be zonal across South Central Texas. Light and variable winds this morning will move around to the south this afternoon marking the return of southerly flow. Despite that, dry air across the Edwards Plateau could mean a few isolated spots see elevated fire weather, but winds are forecast to not be as gusty as they were yesterday. With the return flow in place some patchy fog will be possible tonight into Sunday morning, mainly along and east of the Interstate 35 corridor. During the day on Sunday the next upper level trough moves across the Rockies on a path towards the Southern Plains.

LONG TERM (Sunday Night through Friday) . The tough will deepen as it approaches the Southern Plains Sunday night into Monday. It will drag a cold front across the region to begin the work week Monday morning with global models in decent agreement that the front will arrive sometime around daybreak. With only one real day of moisture return precipitation along the front will be limited to areas east of Interstate 35. The best chance will be during the first half of Monday as the front pushes east, with drying and clearing conditions following by the late afternoon hours. An isolated thunderstorm will be possible, but the majority of the precipitation should remain showery in nature, with limited rainfall totals. The big change with this front will be the cooler air behind it as surface high pressure drops into Texas. Highs on Monday will be be seasonal, but below normal temperatures will be in place for the middle part of the week. Tuesday through Thursday will have highs in the 50s and lower 60s, with freezing or near freezing temperatures each morning. With clear skies and light winds it still looks like most areas will see a light freeze going into Wednesday morning.

Return flow kicks in late Thursday into Friday ahead of the next trough. While the 00z ECMWF and Canadian are now picking up the weak Pacific front that the GFS has been carrying for several runs the placement of the upper level trough and strength of the front are still in question a week out. Because of this confidence remains fairly low and so only slight chance PoPs have been maintained. If models continue to trend into further agreement PoPs may need to be bumped up slightly with subsequent forecasts.

PRELIMINARY POINT TEMPS/POPS. Austin Camp Mabry 74 52 80 56 62 / 0 0 0 - 20 Austin Bergstrom Intl Airport 76 50 82 57 64 / 0 0 0 - 20 New Braunfels Muni Airport 78 49 80 57 65 / 0 0 0 - 10 Burnet Muni Airport 73 51 81 49 58 / 0 0 0 0 - Del Rio Intl Airport 83 50 83 52 70 / 0 0 0 0 0 Georgetown Muni Airport 73 50 80 52 59 / 0 0 0 - 10 Hondo Muni Airport 83 48 83 53 72 / 0 0 0 0 - San Marcos Muni Airport 77 49 81 57 65 / 0 0 0 - 20 La Grange - Fayette Regional 76 55 83 63 68 / 0 0 0 20 40 San Antonio Intl Airport 79 51 80 57 67 / 0 0 0 0 10 Stinson Muni Airport 80 51 81 58 69 / 0 0 0 0 10

EWX WATCHES/WARNINGS/ADVISORIES. None.

Aviation . Huffman Short-Term/Long-Term . Treadway

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Burnet, Burnet Municipal Craddock Field, TX13 mi40 minN 010.00 miFair40°F35°F83%1011.2 hPa
Georgetown, Georgetown Municipal Airport, TX18 mi37 minNNW 410.00 miFair40°F37°F89%1012.7 hPa
Lago Vista TX, Rusty Allen Airport, TX20 mi38 minN 010.00 miFair49°F38°F66%1011.2 hPa
Fort Hood, Robert Gray AAF Ft Hood, TX21 mi95 minWNW 310.00 miFair42°F37°F86%1011 hPa

Link to 5 minute data for KBMQ

Wind History from BMQ (wind in knots)
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Last 24hrCalmCalmW3SW6W13
G18		W10W10W12
G19		W10NW7
G16		NW6CalmNE3CalmCalmCalmCalmCalmCalmCalmCalmNE4CalmCalm
1 day agoCalmCalmSE3S5S7S8S9
G16		--S8S8S5S4S4S5S3S3SW4S3SW4SW4CalmSW3CalmCalm
2 days agoNE3NE6NE333Calm35SE6SE6E5CalmCalmNE3E4CalmCalmSE3CalmCalmCalmCalmCalmCalm
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 (7,2,3,4)
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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 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.