Sunday, August25, 2019 L-36.com


Marine Weather and Tides
China Grove, TX

Version 3.4
NOTICE
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 8:05PM Sunday August 25, 2019 5:54 PM CDT (22:54 UTC) Moonrise 12:57AMMoonset 3:10PM Illumination 22% Phase: Waning Crescent; Moon at 25 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 China Grove, TX
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location: 29.4, -98.4     debug


Area Discussion for - Austin/San Antonio, TX
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Fxus64 kewx 251952
afdewx
area forecast discussion
national weather service austin san antonio tx
252 pm cdt Sun aug 25 2019

Short term (tonight through Monday night)
The upper trough axis that has given us our scattered afternoon and
evening convection the past few days is moving east of the area.

Water vapor imagery shows quite a bit of dry air over the northern
and western sections of texas right now while the coastal plains
hangs on to somewhat deeper moisture. There is a upper ridge axis
that starts off the ca coast and extends SE into west texas. As a
result of these features will look for the main area of isolated
convection late this afternoon to be mainly over the southeast
zones closest to the coast. The latest hrrr runs confirm this
expected trend. Will continue with the sps mentioning the higher
heat index values this afternoon. With the rains from yesterday and
Friday, some isolated spots will have some higher dewpoints based on
ground moisture... This could lead to some areas briefly getting above
heat advisory levels.

Monday will not see any pop across the CWA with mid to upper heights
increasing as ridge axis pushes a little farther east into texas. As
a result the temps will come up and so will the heat index values. A
heat advisory is being issued for all the zones from noon to 8 pm on
Monday. Some of the hill country counties will likely stay just below
criteria, but with the pockets of rain that occurred the past few
days, I dont trust the dewpoint guidance. Dewpoints may in fact stay
rather high so it wont take much to reach the 108 hi criteria. From
a messaging standpoint, and with school starting, best to be err on
the side of caution.

Long term (Tuesday through Sunday)
The rest of the work week will feature the heat and not
much more than that. A cool front is forecast to stall across the
red river region of north texas mid week. It is plausible that
convection to the north could send a boundary or two into central
texas... Bringing some isolated pop across the northern zones of the
cwa. Some 20 pop was added over mainly the east wed-fri with a
combination of seabreeze activity and possible activity from the
n ne. Confidence is low however. Long range models are pointing to a
couple of scenarios for next weekend. GFS is weakening the upper
ridge over texas just enough that daytime heating could trigger some
convection. The ECMWF from the 12z run shows an amplifying ridge out
west into the northern rockies with resultant strong NW upper flow
over the plains. That could bring a front into texas and possibly
bring some rain chances. Left rain chances out for now... But
something to keep watching over the coming days.

Preliminary point temps pops
Austin camp mabry 78 101 79 102 77 - 0 0 0 -
austin bergstrom intl airport 77 100 78 101 76 - 0 0 0 0
new braunfels muni airport 76 100 77 101 75 - 0 0 0 0
burnet muni airport 76 100 77 100 74 0 0 0 0 -
del rio intl airport 79 106 80 105 78 0 0 0 0 0
georgetown muni airport 79 101 79 102 77 - 0 0 0 -
hondo muni airport 76 103 77 103 74 - 0 0 0 0
san marcos muni airport 77 101 77 101 75 - 0 0 0 0
la grange - fayette regional 78 101 79 103 77 10 0 0 - 0
san antonio intl airport 78 101 79 101 77 - 0 0 0 0
stinson muni airport 78 100 79 101 77 - 0 0 0 0

Ewx watches warnings advisories
Heat advisory from noon to 8 pm cdt Monday for atascosa-bandera-
bastrop-bexar-blanco-burnet-caldwell-comal-de witt-dimmit-edwards-
fayette-frio-gillespie-gonzales-guadalupe-hays-karnes-kendall-kerr-
kinney-lavaca-lee-llano-maverick-medina-real-travis-uvalde-val
verde-williamson-wilson-zavala.

Aviation... Huffman
short-term long-term... 09
public service data collection... 33


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Antonio, Stinson Municipal Airport, TX6 mi62 minN 010.00 miMostly Cloudy103°F69°F34%1005 hPa
San Antonio, San Antonio International Airport, TX10 mi64 minSSE 810.00 miMostly Cloudy99°F68°F37%1005.7 hPa
San Antonio - Kelly Field, TX10 mi2 hrsVar 310.00 miMostly Cloudy99°F69°F39%1007.2 hPa
Randolph Air Force Base, TX12 mi2 hrsSSE 710.00 miPartly Cloudy99°F70°F40%1007.4 hPa
Castroville Municipal Airport, TX24 mi80 minSSW 47.00 miFair101°F64°F30%1008.5 hPa

Link to 5 minute data for KSSF

Wind History from SSF (wind in knots)
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Last 24hrSW10CalmSE6SE3----SW3SE5--E3SE4--CalmSE3--SE4SW3--W56S5--3Calm
1 day agoE9E13SE18
G27
SE11--------SE4E4SE4E5E4NE3SE43E54CalmCalm46E7E8
2 days agoSE15
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SE12------SE8--Calm--E6CalmE3SE3--SE4S6Calm4E7E85E6E12
G16

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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wmap_A
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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Austin/San Antonio, TX (18,4,5,8)
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Ground Weather Radar Station Austin/San Antonio, TX
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weather_mapweather_map weather_map

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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.