Wednesday, February19, 2020
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Marine Weather and Tides
Seguin, TX

Version 3.4
NOTICE
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 7:06AMSunset 6:24PM Wednesday February 19, 2020 3:37 PM CST (21:37 UTC) Moonrise 4:29AMMoonset 2:57PM Illumination 15% Phase: Waning Crescent; Moon at 26 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 Seguin, TX
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location: 29.51, -98     debug


Area Discussion for - Austin/San Antonio, TX
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FXUS64 KEWX 192037 CCA AFDEWX

Area Forecast Discussion . CORRECTED National Weather Service Austin/San Antonio TX 237 PM CST Wed Feb 19 2020

SHORT TERM (Today through Thursday). Coverage of shower activity today has been slightly lower than expected, with much of the west half of the region missing out on some much-needed rainfall. Shallow rainshowers along and east of the I-35 corridor remain scattered and generally light, although a few locations near La Grange and Smithville have exceeded 0.5" through this morning after prolonged moderate rain. The deeper isentropic ascent/PVA forced showers have been centered north of the area but have affected Gillespie through Williamson counties much of today but have now pushed northward, at least temporarily.

This will remain the story through tonight. Main area of forcing will remain to our north where some low level fgen may briefly set up, and so the potential for the heaviest rainfall will remain along the far northern boundary of the region. That said, scattered moderate showers will also remain possible across primarily east of US-281 through tonight, with a slight chance for a few showers or drizzle west, primarily this evening over the southern Edwards Plateau. Diurnal temperature curve will be muted, with mid 40s to mid 50s highs today only falling into the low 40s to near 50 tonight.

A renewed shot of moderate northerly winds (10-15 mph gusting to 20- 25 mph with an isolated gust or two to 30 mph) will return by midday Thursday behind a secondary cold front, and with it will come a drier air mass that will help put an end to the shower chances for the most part by afternoon. A slight chance of lingering shower activity will remain in the forecast through midnight for far southwestern portions of the region. In total over the next ~30 hours, anticipating less than a quarter inch for a vast majority of the region, with a quarter to a half inch north of I-10 and locally up to an additional inch near Llano, Burnet, and Williamson counties.

High temperatures Thursday will be similar to today if not a degree or two colder north. With the drier airmass in place and the potential for partial clearing over the Hill Country, lows may dip to near freezing early Friday morning, with the rest of the region bottoming out in the 30s to lower 40s.

LONG TERM (Friday through Tuesday). High pressure will build across the Central Plains on Friday. With light northerly winds at the surface and westerly winds streaming in mid-level moisture Friday will be a cloudy and cool day. Highs will be a good 10 to 14 degrees below normal. The surface ridge will shift eastward across the SE CONUS on Saturday which will allow for winds to become southerly again. This will not only bring about the return of Gulf moisture to South Central Texas but also allow temperatures to warm into the upper 50s and lower 60s. These highs will still be below normal, but now only by 3 to 7 degrees. The next upper level trough will move across the Southern Plains on Sunday. While the main upper low will remain north of the area, the surface low may be close enough with the moisture return to produce some isolated showers Sunday afternoon into Sunday night across areas along and east of I-35. Most of the area will remain dry slotted and dry, but a lucky few will get another round of some light rain. A weak Pacific front will move through as the upper trough exits on Monday, but it will do little to limit the temperatures that will have warmed with highs near 70 and lows near 50. A second, stronger front arrives some time Tuesday afternoon (GFS) or early Wednesday morning (ECMWF) as a broad upper trough builds across the Central Plains. Where previous model runs had included slight rain chances with this second front/trough models are now drier for early next week with the weekend system having scoured out the low level moisture and limited to no moisture return possible between Monday's and late Tuesday's fronts. Where Friday and Saturday will be below normal for highs, Sunday through Tuesday will all see highs above normal, topping out a few degrees either side of 70.

PRELIMINARY POINT TEMPS/POPS. Austin Camp Mabry 50 43 49 36 52 / 80 70 20 - 0 Austin Bergstrom Intl Airport 51 44 49 35 54 / 80 70 20 - 0 New Braunfels Muni Airport 52 46 51 37 54 / 70 60 30 0 0 Burnet Muni Airport 48 42 46 32 49 / 80 90 20 - 0 Del Rio Intl Airport 54 50 54 41 55 / 30 20 30 10 0 Georgetown Muni Airport 49 43 48 34 51 / 80 80 20 - 0 Hondo Muni Airport 55 47 53 37 56 / 70 50 20 0 0 San Marcos Muni Airport 51 45 49 36 54 / 70 70 20 0 0 La Grange - Fayette Regional 53 47 50 37 54 / 70 70 50 - 0 San Antonio Intl Airport 53 47 51 38 54 / 70 50 30 - 0 Stinson Muni Airport 54 48 52 39 55 / 60 50 20 0 0

EWX WATCHES/WARNINGS/ADVISORIES. None.

Short-Term/Aviation . KCW Long-Term . Treadway Decision Support . Platt


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
New Braunfels Regional Airport, TX14 mi46 minNNE 1110.00 miOvercast51°F46°F86%1021.6 hPa
Randolph Air Force Base, TX15 mi1.7 hrsNNE 87.00 miOvercast50°F48°F93%1022.3 hPa

Link to 5 minute data for KBAZ

Wind History from BAZ (wind in knots)
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Last 24hrN19N18
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1 day agoS8S10S9SE7S8SE6--SE3S6CalmSE4SE4S4CalmSE9Calm--CalmE4E7E3Calm4NE10
2 days agoSW7SW8SW5S7W6SW4SW3CalmW4SW9SW8SW9SW8SW6S7S6S6S6SW8SW9SW8SW9SW8S10

Tide / Current Tables for Port Lavaca, Matagorda Bay, Texas
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Port Lavaca
Click for Map
Wed -- 04:21 AM CST     Moonrise
Wed -- 07:01 AM CST     Sunrise
Wed -- 11:43 AM CST     -0.53 feet Low Tide
Wed -- 02:53 PM CST     Moonset
Wed -- 06:19 PM CST     Sunset
Wed -- 10:35 PM CST     0.76 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.70.60.50.40.30.1-0-0.2-0.3-0.4-0.5-0.5-0.5-0.4-0.2-00.20.40.50.60.70.80.8

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 (16,3,4,5)
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Ground Weather Radar Station Austin/San Antonio, TX
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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 numerous 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.