Thursday, December5, 2019
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Marine Weather and Tides
Austin, 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 7:12AMSunset 5:31PM Thursday December 5, 2019 1:32 PM CST (19:32 UTC) Moonrise 1:54PMMoonset 1:03AM Illumination 64% Phase: Waxing Gibbous; Moon at 9 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 Austin, TX
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location: 30.36, -97.8     debug


Area Discussion for - Austin/San Antonio, TX
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FXUS64 KEWX 051734 AFDEWX

Area Forecast Discussion National Weather Service Austin/San Antonio TX 1134 AM CST Thu Dec 5 2019

AVIATION. LIFR and IFR ceilings hung around longer than initially anticipated due to high clouds streaming in from the west. This prolonged the time it took for the dense fog to burn off. Starting to see ceilings lift now and visibilities increasing but have kept IFR ceilings in and 4 SM visibility for I-35 sites over the next hour. All sites will see VFR conditions this afternoon with southerly winds. MOS guidance suggested lowering visibilities late tonight ahead of the front, put this in for the I-35 sites but may need to be amended later. A dry frontal boundary will move over the region late tonight and shift winds to a northerly direction, wind speeds may reach 12 to 15 knots in some places by tomorrow afternoon.

PREV DISCUSSION . /ISSUED 347 AM CST Thu Dec 5 2019/

SHORT TERM (Today through Friday Night) . Current weather pattern across Texas is characterized by zonal west to east flow aloft as a short wave trough located over western Arizona/southeastern California continues its eastward progress. At the surface generally high pressure remains in place although the center of the high has continued to drift eastward into the southeastern US.

Quite a bit of variance exists between our western/Hill Country areas and the Coastal Plains this morning. Kerrville is our coldest location as of 3 AM, with a temperature of 44 degrees with a 38 degree dewpoint under clear skies and calm winds. Kenedy is currently 57 degrees with a dewpoint of 56 with calm winds, which has yielded dense fog. Both Kenedy and Gonzales currently sit at quarter mile visibilities. Fog is expected to continue to spread north and west this morning toward the I-35 corridor before mixing out by mid to late morning. As such, a dense fog advisory has been issued through 9 AM for the I-35/37 corridor from Pleasanton to Austin and points east.

Temperatures this afternoon are expected to warm into the mid 70s for most locations, which is about 10 degrees warmer than seasonal normals. Surface moisture will increase throughout the day, especially for the Coastal Plains, in response to the approaching system from the west. This will give us some decent cloud cover today after several days of cloud free skies.

The Pacific cold front is expected to move through the region overnight tonight into early Friday morning, and is still expected to be dry. Winds will shift to northerly behind the front on Friday, and will be a bit breezy. Skies are expected to quickly clear behind the front, and Friday should be a pleasant day with afternoon highs ranging from the mid 60s to the mid 70s under clear skies. Friday night will be chilly, with lows ranging from the mid 30s across the Hill Country to the low to mid 40s elsewhere under mostly clear skies.

LONG TERM (Saturday through Wednesday) . Saturday will be another great day for putting up holiday lights or any other type of outdoor activity, with highs in the mid to upper 60s under mostly sunny skies. A warming trend begins on Sunday as winds shift back to southerly. Highs on Sunday will be in the mid 70s with upper 70s by Monday with moisture and cloud cover on the increase out ahead of the next cold front that is expected to move through on Monday afternoon/evening. This cold front may bring some rain, both along/ahead of the front and perhaps also post frontal with some overrunning potentially setting up. However, for now only show 20 to 30 percent chances of rain for Monday evening through Tuesday, and QPF should be fairly marginal. This cold front will also bring much cooler temperatures. Highs on Tuesday and Wednesday are expected to be in the mid to upper 50s with lows on Wednesday morning in the 30s with northeasterly winds.

PRELIMINARY POINT TEMPS/POPS. Austin Camp Mabry 53 68 42 65 47 / 0 0 0 0 0 Austin Bergstrom Intl Airport 53 69 42 66 46 / 0 0 0 0 0 New Braunfels Muni Airport 53 70 42 66 45 / 0 0 0 0 0 Burnet Muni Airport 49 65 39 63 45 / 0 0 0 0 0 Del Rio Intl Airport 52 71 44 68 47 / 0 0 0 0 0 Georgetown Muni Airport 51 66 41 64 45 / 0 0 0 0 0 Hondo Muni Airport 51 74 41 70 44 / 0 0 0 0 0 San Marcos Muni Airport 53 70 41 67 45 / 0 0 0 0 0 La Grange - Fayette Regional 56 70 44 67 47 / 0 0 0 0 0 San Antonio Intl Airport 54 70 43 67 46 / 0 0 0 0 0 Stinson Muni Airport 55 72 44 67 47 / 0 0 0 0 0

EWX WATCHES/WARNINGS/ADVISORIES. None.

Aviation . EWilliams Short-Term/Long-Term . Hampshire Public Service/Data Collection . 33


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Austin City, Austin Camp Mabry, TX3 mi41 minS 610.00 miMostly Cloudy73°F59°F62%1015.2 hPa
Lago Vista TX, Rusty Allen Airport, TX13 mi52 minSSW 9 G 1610.00 miFair69°F57°F66%1015.9 hPa
Austin Executive Airport, TX13 mi37 minS 10 G 168.00 miOvercast66°F59°F78%1015.9 hPa
Austin-Bergstrom International Airport, TX14 mi39 minS 16 G 2110.00 miOvercast71°F60°F68%1015.3 hPa
Georgetown, Georgetown Municipal Airport, TX24 mi36 minS 11 G 1610.00 miA Few Clouds71°F60°F68%1015.2 hPa

Link to 5 minute data for KATT

Wind History from ATT (wind in knots)
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Last 24hrN5N4Calm3NE3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNE3CalmCalmCalmSE3S3S46S6
1 day agoSW6
G14
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44CalmCalmCalmCalmNW4NW46NW5N6N5N6N4N43NW3N4N34NE43
2 days agoN64CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSW3CalmCalm33S6SW7
G16
3

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 (14,3,4,5)
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Ground Weather Radar Station Central Texas
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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.