Marine Weather and Tides
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 7:27AM||Sunset 6:01PM||Saturday January 18, 2020 5:06 PM CST (23:06 UTC)||Moonrise 1:35AM||Moonset 1:07PM||Illumination 37%|
7 Day Forecast for Marine Location Near Terrell Hills, TXHourly EDIT Help
Area Discussion for - Austin/San Antonio, TX  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS64 KEWX 182031 AFDEWX
Area Forecast Discussion National Weather Service Austin/San Antonio TX 231 PM CST Sat Jan 18 2020
SHORT TERM (Tonight through Sunday Night). The cold front has just about cleared the far southern CWA and will continue south through the remainder of the afternoon. Residual showers across the southeastern counties of the CWA will gradually come to an end, with clearing across the remainder of the southern and eastern CWA also taking place through the afternoon and evening. Gusty north winds at times will continue through the afternoon. While wind speeds will weaken slightly tonight, they won't completely de-couple. Therefore despite a clear and colder night, mixing should prevent temperatures from reaching freezing, with the exception of the northern Hill Country. Elsewhere lows in the mid 30s to low 40s are forecast. Mostly sunny but cool conditions on Sunday. Highs in the mid 50s to around 60 are forecast.
Winds are forecast to de-couple Sunday night and combined with the dry airmass in place should result in colder temperatures than tonight. We are currently forecasting low temperatures Monday morning in the upper 20s to low 30s in some drainage areas of the Hill COuntry and east of I-35/north of I-10 with mid to upper 30s elsewhere. The one thing to watch that could influence the temperature forecast warmer may be a quicker arriving and thicker mid level deck of clouds that is indicated to possibly develop across the western half of the CWA.
LONG TERM (Monday through Saturday). The upper high behind this weekend's cold front will shift east across Texas during the day on Monday which will cause surface winds to become more easterly. With the cool airmass in place temperatures both Monday and Tuesday will continue to run a good 5 to 7 degrees below normal, finally feeling like winter after several warm days.
A large upper trough with embedded shortwaves will approach late Tuesday and interact with the increasing moisture across South Central Texas due to the southerly return flow and produce showers across the Rio Grande Plains into the Edwards Plateau. With the large trough across the Central Plains the shortwaves in the larger scale pattern will move across Texas Tuesday night through Wednesday night. This appears to be the window for the best rain chances across the area. The shortwaves exit during the day on Thursday concentrating rain chances across eastern areas of South Central Texas. The large scale trough finally drops into the Central Plains late Thursday into Friday which will drag a cold front through the area Friday morning clearing out precipitation. Temperatures that had warmed into the upper 60s on Thursday due to the increased moisture will moderate behind the front Friday and Saturday to near normal (in the low 60s). All-in-all models have around an inch of rain for most of the area for the middle to late part of next week. The GFS continues to be the most progressive of the models and is weakest with the trough producing the lowest QPF of the 3 main global models. The ECMWF and Canadian are both much wetter, deeper, and stronger with as much as 2 inches along and east of Interstate 35 before the rain ends on Friday. With the trough still in the days 4-6 time frame we will see if models come to a consensus over the next 24-36 hours. Precipitation through the period will be mostly showers, but a few isolated thunderstorms will be possible, especially in the Wednesday to Thursday time frame.
PRELIMINARY POINT TEMPS/POPS. Austin Camp Mabry 38 57 35 56 38 / 0 0 0 0 0 Austin Bergstrom Intl Airport 37 57 32 58 36 / 0 0 0 0 0 New Braunfels Muni Airport 38 57 34 58 37 / 0 0 0 0 0 Burnet Muni Airport 34 54 33 55 36 / 0 0 0 0 0 Del Rio Intl Airport 39 60 39 57 42 / 0 0 0 0 0 Georgetown Muni Airport 35 55 34 56 37 / 0 0 0 0 0 Hondo Muni Airport 39 60 32 59 38 / 0 0 0 0 - San Marcos Muni Airport 38 57 31 58 36 / 0 0 0 0 0 La Grange - Fayette Regional 39 57 32 58 37 / 0 0 0 0 0 San Antonio Intl Airport 40 58 37 57 40 / 0 0 0 0 0 Stinson Muni Airport 41 59 37 58 41 / 0 0 0 0 -
EWX WATCHES/WARNINGS/ADVISORIES. None.
Short-Term/Aviation . Runyen Long-Term . Treadway Decision Support . YB
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.
|San Antonio, San Antonio International Airport, TX||6 mi||16 min||N 13||10.00 mi||A Few Clouds||68°F||41°F||38%||1021.2 hPa|
|San Antonio - Kelly Field, TX||8 mi||11 min||N 14||10.00 mi||Fair||69°F||43°F||41%||1021.3 hPa|
|San Antonio, Stinson Municipal Airport, TX||9 mi||14 min||NNE 10 G 18||10.00 mi||Partly Cloudy||67°F||44°F||44%||1021.3 hPa|
|Randolph Air Force Base, TX||11 mi||11 min||NNE 11 G 17||10.00 mi||Overcast||67°F||43°F||43%||1022.2 hPa|
|Castroville Municipal Airport, TX||22 mi||32 min||N 14||10.00 mi||Fair||72°F||44°F||37%||1022.7 hPa|
|San Antonio Boerne Stage Field, TX||22 mi||32 min||N 10 G 16||10.00 mi||Fair||63°F||41°F||45%||1023.4 hPa|
Link to 5 minute data for KSAT
Wind History from SAT (wind in knots)
|1 day ago||NE||NE||NE||NE||NE||N||NE||NE||Calm||E||E||E||E||E||E||SE||SE||SE||S||SE||S|
|2 days ago||SE||Calm||SE||E||E||SE||SE||E||E||E||E||E||E||E||E||E||E||E||E||NE||N||N||N||NE |
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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 (18,4,5,8)(on/off)  Help
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