Marine Weather and Tides
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.
|Sunrise 7:17AM||Sunset 7:31PM||Monday September 20, 2021 12:34 AM CDT (05:34 UTC)||Moonrise 6:45PM||Moonset 5:52AM||Illumination 98%|
7 Day Forecast for Marine Location Near Volente, TXHourly EDIT Help
Area Discussion for - Austin/San Antonio, TX  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXUS64 KEWX 192333 AFDEWX
Area Forecast Discussion National Weather Service Austin/San Antonio TX 633 PM CDT Sun Sep 19 2021
AVIATION. ISOLD SHRA linger until sunset with no impacts to the TAF sites. VFR flying conditions prevail tonight through Monday evening. Some patchy MVFR level clouds are possible early in the morning. Winds increase in speed a little with the usual daily direction trends. At the I-35 sites, SE winds around 5 KTs veer to S overnight into morning, then back to SE at 7 to 14 KTs afternoon into evening. At KDRT, E winds around 5 KTs veer to SE at 7 to 15 KTs late morning.
PREV DISCUSSION. /ISSUED 212 PM CDT Sun Sep 19 2021/
SHORT TERM (Tonight through Monday Night) .
Spotty hit or miss showers have begun to develop across portions of the Hill Country and along I-35. Will elect to keep some low end pops across the San Antonio metro and into the Coastal Plains into this evening in regards to this activity. Gusty winds could result from any heavier cell given the surface dew point depressions and local inverted V soundings. Outside from the lucky few who do receive some temporary relief from the heat with a passing shower, temperatures are still climbing into the mid to upper 90s under mostly sunny to partly cloudy skies. A few locations, especially out near the Rio Grande, could climb to or above 100 degrees late this afternoon. Any spotty showers or storms should wane into and through the evening hours with the loss of daytime heating. Otherwise, a warm and humid night is expected with overnight lows ranging from the upper 60s across the Hill Country to the low to mid 70s elsewhere.
The combination of modest mid-level height rises across the state from out of the west, dew points holding steady around the 50s/60s and development of a south to southwesterly surface flow into the afternoon on Monday ahead of the cold front arriving Tuesday, will result in one of, if not, the hottest days of the year. Daily record high temperatures may be threatened and possibly broken for San Antonio International and at Del Rio. While the daily record will be tougher to reach/break at the Austin climate sites, Austin Bergstrom could reach 100 degrees for the first time this year. Plenty of sunshine will be the trend with no expectation for any rainfall on Monday. Monday night will become more humid as dew points are expected to steadily climb. Low clouds will increase overnight and into Tuesday morning prior to the arrival of the cold front that will be highlighted in the long term.
LONG TERM (Tuesday through Sunday) .
An upper level trough will deepen over the Great Lakes, helping to bring our first shot of relief from the heat. Our best chance for areawide rain will arrive with our first fall cold front on Tuesday afternoon. A line of showers and thunderstorms should develop along this boundary as it quickly advances through South- Central Texas on Tuesday. The front should encounter some marginal instability, with MLCAPE of between 500-1000 J/kg, but deep layer shear will be lacking. One thing to note will be inverted V sounding profiles as temperatures warm into the mid to upper 90s ahead of the front. Any storms that form could produce some gusty winds and locally heavy rainfall, but severe storms are not anticipated at this time.
Behind the front, expect much lower dewpoints, falling into the 40s and 50s, along with breezy northeasterly winds of 15-20 mph Tuesday evening and remaining quite gusty through most of Wednesday before falling off Wednesday evening shortly after sunset. Elevated to Near-Critical fire weather conditions are expected to develop for all of South-Central Texas on Wednesday, as relative humidity plummets to less than 20 percent. The Autumnal Equinox occurs on Wednesday, it will certainly feel more like Fall by that time. Temperatures will be far more manageable though, with highs in the mid to upper 80s. Mornings will be equally glorious, with many spots dipping into the mid to upper 50s by Thursday morning. Expect this trend of cool mornings to continue through the end of the week as a surface high settles in over the region on Wednesday. Winds will slowly start to swing back around out of the east- southeast by Thursday, resulting in a slow rebound in the moisture department, but we probably won't see surface dewpoints in the 60s again until at least this weekend.
PRELIMINARY POINT TEMPS/POPS. Austin Camp Mabry 74 102 76 92 65 / 0 0 0 30 20 Austin Bergstrom Intl Airport 73 100 74 94 64 / - 0 0 30 20 New Braunfels Muni Airport 72 100 74 95 65 / - 0 0 30 20 Burnet Muni Airport 72 98 74 89 62 / 0 0 0 20 - Del Rio Intl Airport 74 103 76 95 68 / 0 0 0 30 20 Georgetown Muni Airport 73 100 74 91 62 / 0 0 0 30 10 Hondo Muni Airport 71 102 74 95 66 / 0 0 0 30 20 San Marcos Muni Airport 72 100 74 94 64 / - 0 0 30 20 La Grange - Fayette Regional 75 100 76 95 67 / 10 0 0 30 30 San Antonio Intl Airport 74 101 76 94 67 / - 0 0 30 20 Stinson Muni Airport 75 103 76 96 69 / - 0 0 30 30
EWX WATCHES/WARNINGS/ADVISORIES. None.
Short-Term/Aviation . 04 Long-Term . Oaks
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.
|Lago Vista TX, Rusty Allen Airport, TX||6 mi||40 min||SSE 6||10.00 mi||Fair||78°F||64°F||62%||1012.5 hPa|
|Austin Executive Airport, TX||18 mi||60 min||no data||10.00 mi||79°F||66°F||65%||1011.5 hPa|
|Austin-Bergstrom International Airport, TX||21 mi||42 min||S 10||10.00 mi||A Few Clouds||79°F||69°F||72%||1010.2 hPa|
|Georgetown, Georgetown Municipal Airport, TX||21 mi||39 min||SE 4||10.00 mi||Fair||81°F||66°F||61%||1011.5 hPa|
Link to 5 minute data for KRYW
Wind History from RYW (wind in knots)
|1 day ago|
|2 days ago|
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