Marine Weather and Tides
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
|Sunrise 6:36AM||Sunset 8:25PM||Tuesday May 22, 2018 2:34 PM CDT (19:34 UTC)||Moonrise 12:59PM||Moonset 1:26AM||Illumination 55%|
EDIT (on/off)  Help
7 Day Forecast for Marine Location Near Olmos Park, TXHourly EDIT Help
Area Discussion for - Austin/San Antonio, TX  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus64 kewx 221749|
area forecast discussion
national weather service austin san antonio tx
1249 pm cdt Tue may 22 2018
Aviation discussion For 18z TAF period...
isolated tsra has been observed on radar west of the i-35 corridor at
taf issuance and expect development to continue through the afternoon
hours. Similar to yesterday, the question will be if this activity
can migrate far enough west to impact the i-35 terminals. Storm
motion is currently north-northwest so best opportunity will be at
kaus unless more development occurs south of san antonio. Thus,
included vcts at kaus but left out mention at ksat kssf kdrt.
Amendments may be needed at kaus if confidence in impacts increases.
After 00z, this activity should decrease, and another round of
overnight MVFR ifr CIGS is expected to develop persisting through the
mid morning hours.
Prev discussion issued 628 am cdt Tue may 22 2018
aviation... 12z tafs
mix of lifr ifr MVFR CIGS across the region this morning. The east
is seeing the lifr ifr and the western areas MVFR. The low clouds and
cigs will continue through 15z-17z then should becomeVFR all area.
Will see repeat tonight with the i-35 locations falling to MVFR ifr
06z-09z and then MVFR developing around 11z for kdrt. Winds 4-7
knots this morning will become SE 7-10 knots after 15z. SE winds will
increase to 10-15 knots with gusts to 20 knots after 16z at kdrt.
Isolated convection is possible west of i-35 and isolated to
scattered east of i-35 today. Low confidence at this time so have not
included in the forecast.
Prev discussion... Issued 359 am cdt Tue may 22 2018
short term (today through Wednesday)...
showers and thunderstorms along the texas new mexico border extending
south to the big bend and into mexico are moving east. This activity
is being fed by a moist southeasterly lower level flow. Although, it
will encounter a capping inversion further east due to a building mid
and upper level ridge, it may survive long enough to move into the
val verde county area today and have maintained pops for that area.
The moist flow from the coastal plains into the escarpment may
generate streamer showers this morning as indicated by hi-res models
and have introduced slight chance pops for those areas. The mid and
upper level ridge slowly builds over our area. However, the capping
inversion is weak enough to allow the seabreeze to generate
afternoon showers and thunderstorms across areas mainly east of i-35
each day. Any storms may produce gusty winds and brief heavy
downpours. Near normal temperatures today creep slightly above normal
Long term (Wednesday night through Monday)...
the mid and upper level ridge continues to strengthen over our area
later this week into the memorial day weekend as a deepening low
pressure system at the surface and aloft moves across the central
gulf of mexico into the central gulf coast. Initially, some moisture
lingers across the far east along the highway 77 corridor. This may
allow isolated showers and thunderstorms to develop during the
afternoon hours of Thursday through Saturday. A slight drying trend
as gulf moisture decreases due to weak surface ridging along with
good mixing of warming mid level temperatures (850 mb temperatures
of 19c to 24c warming to 24c to 30c) enables surface temperatures to
warm, as well. Expect highs around 100 or so along the rio grande
during the weekend, spreading to the i-35 corridor from san antonio
south on memorial day.
Preliminary point temps pops
Austin camp mabry 70 91 71 93 72 - 10 - 10 0
austin bergstrom intl airport 69 90 68 92 70 - 10 - 10 0
new braunfels muni airport 69 91 69 92 69 - 10 - 10 0
burnet muni airport 68 88 68 91 69 - 10 - 10 -
del rio intl airport 72 93 72 95 73 - - - - 0
georgetown muni airport 69 89 69 91 70 10 10 10 10 10
hondo muni airport 69 92 69 94 68 - - - - 0
san marcos muni airport 69 90 68 92 70 - 10 - 10 0
la grange - fayette regional 70 91 69 92 71 10 20 10 10 10
san antonio intl airport 71 90 71 92 71 - 10 - - 0
stinson muni airport 71 92 71 95 71 - 10 - - 0
Ewx watches warnings advisories
Mesoscale aviation... Tb3
synoptic grids... 24
public service data collection... 33
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Kelly Air Force Base, TX||5 mi||99 min||N 0||10.00 mi||A Few Clouds||87°F||66°F||51%||1014.1 hPa|
|San Antonio, Stinson Municipal Airport, TX||5 mi||42 min||Var 4||10.00 mi||Partly Cloudy||89°F||66°F||47%||1012.5 hPa|
|San Antonio, San Antonio International Airport, TX||10 mi||44 min||S 4||10.00 mi||Mostly Cloudy||86°F||64°F||49%||1012.9 hPa|
|Randolph Air Force Base, TX||14 mi||39 min||SSW 4||10.00 mi||Partly Cloudy||87°F||67°F||52%||1013.8 hPa|
|Castroville Municipal Airport, TX||20 mi||60 min||SSE 3||10.00 mi||Partly Cloudy||86°F||63°F||46%||1015.2 hPa|
Wind History from SKF (wind in knots)
|1 day ago||N|
|2 days ago||SE|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help
EDIT (on/off)  Help
Weather Map and Satellite Images(on/off)  HelpWeather Map
GOES 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.
target = "new">Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Austin/San Antonio, TX (15,3,4,5)(on/off)  Help
Ad by Google
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.