Monday, June21, 2021
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Marine Weather and Tides
George, TX

Version 3.4
NOTICE
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 6:27AMSunset 8:37PM Monday June 21, 2021 1:56 AM CDT (06:56 UTC) Moonrise 4:26PMMoonset 2:42AM Illumination 86% Phase: Waxing Gibbous; Moon at 11 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 George, TX
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location: 30.67, -97.65     debug


Area Discussion for - Austin/San Antonio, TX
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FXUS64 KEWX 210528 AFDEWX

Area Forecast Discussion National Weather Service Austin/San Antonio TX 1228 AM CDT Mon Jun 21 2021

AVIATION.

A very moist airmass is now in place and MVFR cigs have developed at the I-35 sites. SAT may see a period of IFR later this morning. Expecting DRT to get in on the MVFR action after 12Z as well, with all sites likely to scatter out in the 16-18Z time frame, although there is a low chance AUS remains MVFR a tad longer. A cold front will arrive in the evening with a wind shift from SE to NE overnight behind it. A broken line of showers and thunderstorms will accompany this front with a small chance for one or two to become strong to severe. MVFR cigs will also return after 06Z Tuesday for the 30 hour TAF sites.

PREV DISCUSSION. /ISSUED 656 PM CDT Sun Jun 20 2021/

AVIATION . /00Z TAFS/ VFR conditions are expected across area terminals this evening. Late tonight, the AUS and SAT airports are expected to go down to MVFR cigs as dewpoint depression diminishes and low level clouds develop. There is a chance for cigs to lower into the IFR category for SAT and decided to go with a TEMPO group to show that trend. VFR cigs return across the I-35 sites around 16Z Monday and stay like that through the evening. The exception to the above will be around 00Z to 06Z Tuesday as summer cold front pushes across the area with chances of rain and possibly strong thunderstorm activity. For KDRT, VFR cigs/vsbys are expected through Monday morning with a few hours of MVFR conditions around sunrise through 16Z Monday and back to VFR afterward. A moderate southeasterly flow will prevail for most of the forecast period with winds shifting to the northeast as the cold front pushes across the area on Monday evening.

PREV DISCUSSION . /ISSUED 223 PM CDT Sun Jun 20 2021/

SHORT TERM (Tonight through Monday Night) . Doing a quick check of the afternoon satellite and radar partly to mostly cloudy exist this afternoon across South Central Texas thanks to a smattering of low level cumulus and higher level cirrus clouds. This may help moderate temperatures slightly in areas that see more cloud cover, with temperatures already warming to the Century mark at the mostly sunny Del Rio as of 2pm. Satellite has shown a few isolated showers across the Coastal Plains that have snuck into DeWitt and Lavaca Counties at times. These southeastern Coastal Plains counties have the best chance of seeing additional isolated showers and maybe a rumble of thunder or two through the rest of the afternoon and evening. This shower activity is thanks to the weak upper low that based on water vapor and model data is now being absorbed into the mid-level flow across east Texas.

With increased surface flow off the Gulf of Mexico tonight should be another typical moist summer night with overnight low clouds forming for most areas by daybreak. Monday will be another partly cloudy day with the cloud cover playing a key role in the afternoon temperatures. Combined with increasing temperatures and dew points areas that stay more cloud free like parts of the Rio Grande Plains, Edwards Plateau, and Coastal Plains will see heat index values climb into the 105 to 111 range, being highest along the Rio Grande Plains and Winter garden regions. Due to this parts of the area will almost certainly need a Heat Advisory. With questions still about cloud cover will lead the product issuance to later shifts. During the day on Monday a few isolated showers and storms are possible, mainly across the Coastal Plains and areas of east Texas.

Precipitation chances will increase late in the day on Monday into the overnight hours as a VERY late season cold front moves through the area. The global models have now come in line with the high resolution models and bring the front through some time between 00z (7pm) and 06z (1am) Monday evening and early Tuesday morning. With the earlier timing the ample moisture ahead of the front the Storm Prediction Center has introduced a Marginal Risk (Level 1 out of 5) for much of the area (excluding the Coastal Plains). Model soundings do show ample CAPE, but fairly limited shear for tomorrow evening. Think that a few strong to severe storms could fire thanks to the added lift from the front, and the front arriving shortly after the peak heating of the day does add credence to this. Another note is that the NAM and GFS still hint at the development of a meso-low along the Rio Grande or over Mexico as the front passes to the south. With precipitable water values between 1.5 and 2 inches some locally heavy downpours could also be possible. With the progressive nature of the front and the recent dry spell this would most likely be some beneficial rainfall and much of a flooding threat other than typical minor impacts.

LONG TERM (Tuesday through Sunday) . The frontal boundary will stall near our southern border Tuesday. There will be a chance for showers and thunderstorms across the southern half of our CWA with the best chances over the southeastern counties. The front will also "cool" us off a bit. Highs Tuesday will be about 10 degrees lower than Monday. The low level flow will quickly turn back around to southeasterly Tuesday night and Wednesday pushing the front back north as a warm front. There will be a slight chance for showers over the southeast, but rain is not likely anywhere. The southeasterly flow will bring warmer air back to the region and temperatures will increase through the end of the week. The upper level ridge will build back to the east through the middle of the week. Next weekend an upper level trough will push down through the Central Plains pushing the ridge to the east. This may produce enough lift around the southwestern edge of the ridge to generate convection over our CWA.

PRELIMINARY POINT TEMPS/POPS. Austin Camp Mabry 96 70 85 73 95 / 20 60 10 - - Austin Bergstrom Intl Airport 96 69 85 72 95 / 20 60 20 - - New Braunfels Muni Airport 96 72 88 74 95 / - 40 20 - 10 Burnet Muni Airport 94 67 83 71 93 / 20 60 - 0 0 Del Rio Intl Airport 104 74 92 77 98 / - 60 10 - - Georgetown Muni Airport 95 68 83 71 93 / 20 70 10 - - Hondo Muni Airport 98 73 89 74 94 / - 60 20 - - San Marcos Muni Airport 95 71 87 72 95 / 10 50 20 - - La Grange - Fayette Regional 94 74 88 76 95 / 20 50 30 - 10 San Antonio Intl Airport 97 72 88 74 95 / - 40 20 - 10 Stinson Muni Airport 99 74 90 76 96 / - 40 20 - 10

EWX WATCHES/WARNINGS/ADVISORIES. None.

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


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Georgetown, Georgetown Municipal Airport, TX3 mi61 minSSE 810.00 miOvercast81°F75°F82%1009.1 hPa
Austin Executive Airport, TX19 mi82 minN 08.00 miMostly Cloudy81°F75°F84%1009.1 hPa
Lago Vista TX, Rusty Allen Airport, TX21 mi62 minSSE 4 G 1410.00 miOvercast78°F74°F87%1010.5 hPa

Link to 5 minute data for KGTU

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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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