Friday, December6, 2019
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Marine Weather and Tides
Giddings, 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 7:06AMSunset 5:26PM Friday December 6, 2019 7:00 PM CST (01:00 UTC) Moonrise 2:20PMMoonset 1:53AM Illumination 76% Phase: Waxing Gibbous; Moon at 10 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 Giddings, TX
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location: 30.21, -97     debug


Area Discussion for - Austin/San Antonio, TX
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FXUS64 KEWX 062356 AFDEWX

Area Forecast Discussion National Weather Service Austin/San Antonio TX 556 PM CST Fri Dec 6 2019

AVIATION. VFR through the period for all TAF site locations. IR satellite shows some high clouds streaming E/SE across the state and this will continue as broad W/NW upper flow persists in the mid to upper levels. Northerly surface winds at all sites tonight will be below 10 kt. The surface ridge will shift east tomorrow, and at some point in the afternoon the ridge axis should be east of AUS/SSF/SAT which should veer the winds to NE, then E/SE winds by late afternoon. This will happen out west at DRT a bit earlier in the AM hours. Speeds on Saturday should remain at or below 10 kt. Looking further ahead to Saturday night and early Sunday, model guidance is trending toward some MVFR as moisture return increases with stronger and deeper southerly winds. Will likely have to mention at least a SCT of strato cu Sunday AM in later TAF issuances.

PREV DISCUSSION. /ISSUED 241 PM CST Fri Dec 6 2019/

SHORT TERM (Tonight through Saturday Night) . Clear skies and breezy northerly winds are prevailing across South- Central Texas behind the overnight cold front. Temperatures range from the middle 60s in the Hill Country to the middle 70s for much of the rest of the area. The dry weather is expected to continue through the short-term with mostly clear skies continuing. Overnight lows will range from the middle 30s in the Hill Country to the middle to upper 40s for the rest of the area. Surface winds will begin to shift back to the south tomorrow as the surface high slides to the east. Highs will remain pleasant, in the middle 60s to lower 70s. With the south winds increasing by Saturday night, lows will be 3-5 degrees warmer than tonight.

LONG TERM (Sunday through Friday) . Southerly flow will continue on Sunday with winds at 850 mb out of the southwest. This should allow highs to get into the middle to upper 70s. The next upper trough will pass through the Plains on Monday which will send the next cold front into the area Monday evening. The timing should allow for some compressional warming ahead of the front Monday afternoon for our area. Should see some highs back in the 80s across much of the area. Temperatures will cool by Monday night as the front makes it through the area.

Models are in better agreement of the southern part of the trough axis hanging back and moving across Texas on Tuesday behind the cold front. This will setup good overrunning conditions with deep lift ontop of the frontal layer. This should bring a good coverage of light rain to the area late Monday night into Tuesday. Will increase PoPs into the 30-60 percent range, but these may need to be increased further if trends continue. With strong cold-air advection, and light rain, temperatures Tuesday will likely struggle to reach the upper 50s for most locations. Models are in good agreement that things will shut off pretty quickly by Tuesday night as drier air and subsidence moves into the region. Highs Wednesday will likely remain in the upper 50s to lower 60s. The next shortwave arrives to the area Thursday night and models are in better agreement with not a lot of QPF due to a lack of deep moisture return by the time the upper lift arrives. Will keep PoPs capped at 30 percent for now on Thursday and Friday.

PRELIMINARY POINT TEMPS/POPS. Austin Camp Mabry 46 67 48 74 58 / 0 0 0 0 0 Austin Bergstrom Intl Airport 44 68 46 75 57 / 0 0 0 0 0 New Braunfels Muni Airport 45 67 46 74 57 / 0 0 0 0 0 Burnet Muni Airport 42 65 46 73 56 / 0 0 0 0 0 Del Rio Intl Airport 47 69 47 76 52 / 0 0 0 0 0 Georgetown Muni Airport 42 66 46 73 57 / 0 0 0 0 0 Hondo Muni Airport 44 71 45 76 53 / 0 0 0 0 0 San Marcos Muni Airport 44 68 46 75 56 / 0 0 0 0 0 La Grange - Fayette Regional 47 69 49 75 59 / 0 0 0 0 0 San Antonio Intl Airport 46 67 48 74 57 / 0 0 0 0 0 Stinson Muni Airport 46 67 49 75 57 / 0 0 0 0 0

EWX WATCHES/WARNINGS/ADVISORIES. None.

Aviation . 09 Short-Term/Long-Term . Runyen


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Giddings, Giddings-Lee County Airport, TX3 mi65 minN 010.00 miFair66°F49°F54%1022.7 hPa
La Grange, Fayette Regional Air Center Airport, TX21 mi65 minN 410.00 miFair66°F50°F58%1021.7 hPa

Link to 5 minute data for KGYB

Wind History from GYB (wind in knots)
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Last 24hrCalmCalmS5CalmCalmCalmCalmCalmSW6W5CalmNW8CalmNW8NW9
G18
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1 day agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSW12
G18
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2 days agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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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 (20,4,5,8)
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Ground Weather Radar Station Central Texas
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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.