Saturday, September21, 2019 L-36.com


Marine Weather and Tides
Volente, TX

Version 3.4
NOTICE
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 7:17AMSunset 7:30PM Saturday September 21, 2019 7:09 PM CDT (00:09 UTC) Moonrise 11:36PMMoonset 1:00PM Illumination 46% Phase: Third Quarter Moon; Moon at 23 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 Volente, TX
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location: 30.43, -97.91     debug


Area Discussion for - Austin/San Antonio, TX
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Fxus64 kewx 212356 aaa
afdewx
area forecast discussion... Updated
national weather service austin san antonio tx
656 pm cdt Sat sep 21 2019

Aviation
00z tafs
a breezy southeast flow is in place across much of the area early
this evening. Winds are forecast to remain around 10 to 15 knot
range with gusts up to 25 knots through about midnight tonight.

Vfr conditions are expected across all area sites through 04z Sunday
with MVFR CIGS anticipated for the i-35 terminals to begin around
05z or short after. Current area radar images show isolated showers
nearby ksat and kssf, however, the trend is for these showers to
diminish and come to an end within the next few hours and hires
models agree on this solution. MVFR CIGS will dominate the overnight
hours through late Sunday morning before clouds break for the return
ofVFR conditions. Southerly flow continues on Sunday with speeds
ranging from 10 to 15 knots with higher gusts. Most showers and
storms to stay over the coastal plains on Sunday afternoon evening.

Prev discussion issued 603 pm cdt Sat sep 21 2019
update...

deeper tropical moisture is draped along a georgetown to boerne to
carrizo springs line late this afternoon per GOES total precipitable
water satellite imagery and have done a quick update to pull
isolated rain chances into the hill country and highway 83 corridor
based on latest radar trends. Aircraft soundings out of austin and
san antonio show weak mid-level lapse rates and overall
lightning thunderstorm potential appears to remain low through the
early evening hours. Given the diurnally driven nature of these
showers, still anticipate loss of daytime heating to result in a
quick dissipation of this activity by 9 pm.

Prev discussion... Issued 246 pm cdt Sat sep 21 2019
short term (tonight through Sunday)...

isolated showers are ongoing across portions of the coastal plains
and even extending up into the san antonio area where a plume of
elevated moisture exists. A few areas have picked up some wetting
rains, with stinson airport on the southeast side of san antonio
receiving a half inch of rain. Temperatures this afternoon are
primarily in the 90s, with a few cooler locations across the hill
country and where rain cooled air and increased cloud cover has kept
temperatures tempered. Shower activity should come to an end this
evening with the loss of heating. Expect partly to mostly cloudy
skies tonight with overnight lows in the mid 70s for most locations.

A few streamer showers are possible toward morning. Another
unseasonably warm day is expected on Sunday, with highs reaching the
mid to upper 90s for most locations. There will be another slight
chance for some showers, but the favored area will be pushed a little
bit further east to the coastal plains.

Long term (Monday through Saturday)...

the mid to upper level high across the southeastern us will
generally stay in place through Monday before shifting further
southeast to the eastern gulf of mexico near florida toward mid week.

An upper level trough is expected to come ashore in the pacific
northwest by Sunday evening, heading southeast and becoming a well
defined closed mid level low by Tuesday morning near the
california arizona mexico border. It is expected to generally hang
out in that area before becoming an open wave trough and existing to
the northeast. For us here across south central texas, not a whole
heck of a lot is expected to change, with south southeasterly surface
flow and generally weak mid to upper level winds persisting. Slight
chance pops, high temperatures in the mid 90s, and lows in the mid
70s are expected to continue through the period. The climate
prediction center's 6 to 10 and 8 to 14 day outlooks continue to show
high probabilities for warmer than normal temperatures continuing,
and long term models continue to show no cold fronts on the horizon.

Preliminary point temps pops
Austin camp mabry 74 98 75 97 74 20 10 0 10 10
austin bergstrom intl airport 72 96 72 95 72 20 10 0 10 10
new braunfels muni airport 72 97 72 96 72 10 20 0 10 10
burnet muni airport 72 94 71 94 71 20 10 0 10 10
del rio intl airport 76 98 75 98 76 - - 0 - 10
georgetown muni airport 72 96 72 96 72 20 10 0 10 10
hondo muni airport 74 99 73 100 73 10 10 - 10 10
san marcos muni airport 72 97 72 96 72 10 20 0 10 10
la grange - fayette regional 73 96 74 96 72 10 20 0 20 -
san antonio intl airport 75 97 75 96 75 10 20 - 10 10
stinson muni airport 75 99 75 99 75 10 20 - 10 10

Ewx watches warnings advisories
None.

Aviation... 17
short-term long-term... Huffman
public service data collection... Ewilliams


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Lago Vista TX, Rusty Allen Airport, TX6 mi15 minSE 8 G 1710.00 miPartly Cloudy87°F68°F55%1015.2 hPa
Austin City, Austin Camp Mabry, TX11 mi19 minSE 10 G 1910.00 miPartly Cloudy89°F68°F50%1013.2 hPa
Austin Executive Airport, TX18 mi15 minSE 1310.00 miFair88°F68°F52%1014.9 hPa
Austin-Bergstrom International Airport, TX21 mi17 minESE 1210.00 miPartly Cloudy89°F71°F55%1012.8 hPa
Georgetown, Georgetown Municipal Airport, TX21 mi14 minSE 10 G 1610.00 miPartly Cloudy88°F69°F54%1014.4 hPa

Link to 5 minute data for KRYW

Wind History from RYW (wind in knots)
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Last 24hrSE10
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1 day agoE9SE12
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2 days agoNE6E6E6E6E4E3E3CalmCalmE4CalmSW4CalmCalmE3CalmCalmE4E4CalmSW6S6NE4E4

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 SouthCentralPlains    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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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.