Sunday, November18, 2018 L-36.com


Marine Weather and Tides
Lexington, TX

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:57AMSunset 5:32PM Sunday November 18, 2018 11:23 AM CST (17:23 UTC) Moonrise 3:01PMMoonset 2:17AM Illumination 81% 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 Lexington, TX
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location: 30.41, -97     debug


Area Discussion for - Austin/San Antonio, TX
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Fxus64 kewx 181204 aaa
afdewx
area forecast discussion... Updated
national weather service austin san antonio tx
604 am cst Sun nov 18 2018

Aviation
12z tafs
there is a mixture of flight categories with kaus reporting ifr,
ksat and kssf at MVFR and kdrt at lifr. CIGS at austin area airports
could stay ifr for the 12z hour as a cold front moves across the
area. The san antonio sites should remain MVFR through late this
afternoon and kdrt CIGS vsbys should improve to ifr within the next
hour with MVFR expected for 17z through the rest of the afternoon. A
cold front is pushing across the area and over the austin sites
as of this writing and between 12z and 13z across the san antonio
sites and 14z across kdrt. Northerly winds 10 to 15 knots will
prevail in the wake of the cold front. Occasionally gusts up to 20
knots are expected across kdrt late this morning and early afternoon.

Vfr conditions are expected to return to the i-35 sites with the
exception of kdrt by ooz Monday. CIGS could go back down to MVFR for
these sites right before midnight tonight or shortly after.

Prev discussion issued 423 am cst Sun nov 18 2018
short term (today through Monday)...

the latest radar data shows some shower activity is developing generally
along and east of the highway 281 corridor early this morning.

Elsewhere, a cold front is currently located from central val verde
county into the hill country just south of llano.

For today, it appears the better chance for rainfall will remain to
the east of the i-35 corridor as moisture levels remain highest
across the mentioned area. Also, the warm air advection pattern looks
a little stronger here according to the 295k and 300k isentropic
surfaces. While we mainly expect showers today, we can't rule out an
isolated thunderstorm this morning across the coastal plains.

Rainfall amounts across the coastal plains should generally remain in
the 1 4" - 1 2" range, with lesser amounts heading westward into the
i-35 corridor and hill country. Otherwise, expect much cooler
temperatures today given cold air advection behind the front, cloudy
skies and expected rainfall. High temperatures will vary from the
upper 40s in the hill country to lower 60s in the coastal plains.

For tonight and Monday, the warm air advection pattern will persist,
but again will remain strongest near the coastal plains. With a lack
of significant forcing for ascent, overall precipitation amounts
should remain light on Monday, with amounts below 1 10". A weak mid-
level shortwave trough passing to our north may help the warm air
advection pattern strengthen slightly Monday night. This should help
raise precipitation amounts slightly, especially near the coastal
plains. Low temperatures tonight will range from the upper 30s in
the hill country to the upper 40s in the coastal plains. Most areas
can expect to see highs in the 50s on Monday.

Long term (Monday night through Saturday)...

temperatures should moderate slightly on Tuesday with highs nudging
upward into the 60s. Without much support for precipitation, we will
keep the forecast dry for most of Tuesday. However, an approaching
shortwave trough will once again cause the warm air advection pattern
to strengthen mid-week. Rainfall should become more widespread
across south central texas on Wednesday. As the shortwave translates
eastward Wednesday night, the focus for additional rainfall will
shift to areas along and east of the i-35 corridor.

The forecast for thanksgiving day currently appears to be dry and
mostly cloudy with high temperatures generally in the 60s. For late
this week, the medium range models show a fairly stout upper system
moving out of the rockies into the southern plains states. The ecmwf
is slower and farther south with this system, while the GFS is
quicker and farther north. We may not have much time for significant
moisture return ahead of this system and for now, we will keep the
forecast dry along with a warming trend for Friday and Saturday.

Preliminary point temps pops
Austin camp mabry 53 43 56 43 64 30 30 30 10 0
austin bergstrom intl airport 53 43 56 40 63 40 30 30 10 0
new braunfels muni airport 54 44 55 42 63 40 30 30 10 -
burnet muni airport 51 39 56 39 61 10 10 10 - 0
del rio intl airport 55 47 62 48 64 20 10 - 10 10
georgetown muni airport 52 40 56 39 62 20 20 20 - 0
hondo muni airport 57 46 59 44 65 20 20 10 10 -
san marcos muni airport 53 43 54 42 63 50 30 30 10 -
la grange - fayette regional 55 45 54 42 63 70 40 50 20 -
san antonio intl airport 55 45 57 45 64 40 30 30 10 -
stinson muni airport 57 46 58 45 64 50 30 30 10 -

Ewx watches warnings advisories
None.

Aviation... 17
short-term long-term... Platt


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Caldwell, Caldwell Municipal Airport, TX17 mi28 minN 14 G 1910.00 miOvercast48°F41°F76%1025.4 hPa
Giddings, Giddings-Lee County Airport, TX17 mi28 minN 11 G 177.00 miOvercast47°F41°F82%1025.1 hPa

Wind History from GYB (wind in knots)
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Last 24hrS8S9
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S5S6S8S5SE3S4S5SE4SE3SE3CalmCalmCalmNE3CalmCalmN6N10
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1 day agoSW5SW8S5SW8S5S3CalmCalmCalmS6S5S4CalmCalmCalmCalmCalmCalmCalmCalmCalmSE4S9S8
2 days agoSW7S3S4S6SW4S4CalmCalmCalmCalmS3CalmS3CalmCalmCalmCalmCalmCalmCalmCalmSW7SW7SW7

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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GOES 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.
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Wind Forecast for Austin/San Antonio, TX (12,3,4,5)
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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.