Marine Weather and Tides
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
|Sunrise 6:58AM||Sunset 8:10PM||Thursday August 17, 2017 2:09 PM CDT (19:09 UTC)||Moonrise 1:41AM||Moonset 3:46PM||Illumination 21%|
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7 Day Forecast for Marine Location Near Sunset Valley, TXHourly EDIT Help
Area Discussion for - Austin/San Antonio, TX  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus64 kewx 171757|
area forecast discussion
national weather service austin san antonio tx
1257 pm cdt Thu aug 17 2017
ceilings have lifted toVFR at all sites with south or southeast
10-15 knot winds expected this afternoon. A few models are showing
that convection may be possible this afternoon and early evening
north of aus, but decreasing moisture and increasing stability should
prevent this from occurring. Winds will stay up around 10-15 knots
tonight before decreasing to 5-10 knots overnight with MVFR ceilings
developing by 9z at Sat ssf. Confidence in MVFR ceilings is lower at
aus where winds may be more s-sw than the s-se winds Sat ssf should
have, but we included them after 11z at aus for now. Regardless,VFR
conditions should return to the i-35 sites between 14-15z.
Prev discussion issued 1023 am cdt Thu aug 17 2017
low temperatures and overnight dewpoints were higher than expected
which should lead to slightly higher values of moisture this
afternoon. In addition, southwest winds at the surface may lead to
higher high temperatures as well today. Upped high temps and
dewpoints across the eastern counties and this should lead to heat
advisory criteria being exceeded in the far eastern counties. Went
ahead and issued a heat advisory for lee, fayette, lavaca, gonzales,
and dewitt county.
Prev discussion... Issued 617 am cdt Thu aug 17 2017
12z aviation update below.
MVFR ceilings in stratus continues early this morning along the
escarpment edge into portions of the hill country. This includes
sat ssf and at times aus. There is a chance the stratus may develop
into drt around or after 12z but lower confidence in this.VFR
conditions redevelop 15z-17z as stratus mixes out. Generally shras
and tstms should stay north and west of the area and TAF sites today.
Prev discussion... Issued 350 am cdt Thu aug 17 2017
short term (today through Friday)...
high pressure aloft remains dominant over most of south central tx,
with some subtle instability hanging on over parts of the edwards
plateau into NRN mexico early this morning. A tropical moisture axis
and weak mid-level cyclonic shear over this region has allowed for a
few elevated overnight showers generally north of rocksprings and
west of del rio. Satellite imagery loops depicting mid level clouds
and rapid refresh models would suggest some cyclonic shear rooted
over the serranias del burros will extend into swrn parts of val
verde county to allow for continued weak elevated convection into the
The mid level ridge axis over central tx will both strengthen and
build northward today and tonight, leading to reduced surface winds
in the late afternoon and evening over the next couple days. While
the trend for very gradual lowering of day-to-day heat indices should
continue through afternoon mixing and lack of rainfall, triple digit
heat index values remain in the picture. Those spending several
hours outdoors in the afternoon and evening along and east of i-35
may not sense the slight improvement due to the lighter winds from
the seabreeze. Will continue show the elevated heat indices in the
Long term (Friday night through Wednesday)...
the mid-level ridge axis remains entrenched over central tx over the
weekend, with the orientation tilting as heights build nwd over the
srn rockies Saturday. By Monday, a pacific upper low erodes this wrn
build-up again and a tutt low over the gulf pinches off the eastern
edge of the ridge axis. In the center, the upper ridge remains
dominant over tx with only subtle changes in the surface winds
expected early next week versus this weekend.
Some deterministic data anticipates a surge in pwat values to
generate rain chances, but knowing subsidence enhancement precedes
the approach of a tutt from the east, the drier GFS looks most
probable. None of the above mentioned mid upper level pattern shifts
should put a significant dent in the triple digit heat and or heat
indices through at least Tuesday.
Model diverge a bit on the broader mid-level pattern on Wednesday
with the GFS showing an inverted trough over S tx left from the
weakening tutt and the ecm depicting potential instability arriving
from the north after a westward shift of the ridge aloft. Will give
in to a generic isolated rain chance for Wednesday for all areas as
either of these solutions seem plausible.
Preliminary point temps pops
Austin camp mabry 77 100 77 100 76 10 0 0 - 10
austin bergstrom intl airport 76 99 76 100 75 10 0 0 - 10
new braunfels muni airport 75 99 75 100 75 - 0 0 - 10
burnet muni airport 74 98 74 98 74 10 0 0 - -
del rio intl airport 78 99 78 101 78 0 - 0 - 0
georgetown muni airport 76 98 75 98 75 10 0 0 - 10
hondo muni airport 75 100 74 101 74 0 0 0 0 -
san marcos muni airport 76 99 75 100 75 10 0 0 - 10
la grange - fayette regional 77 99 76 100 76 10 - 0 10 10
san antonio intl airport 76 99 76 99 76 0 0 0 0 10
stinson muni airport 76 101 76 101 76 0 0 0 0 10
Ewx watches warnings advisories
Heat advisory until 7 pm cdt this evening for the following
counties: de witt... Fayette... Gonzales... Lavaca... Lee.
Mesoscale aviation... Lh
synoptic grids... Hampshire
public service data collection... 30
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
|Austin-Bergstrom International Airport, TX||7 mi||77 min||S 13 G 18||10.00 mi||Partly Cloudy||94°F||71°F||48%||1015.5 hPa|
|Austin City, Austin Camp Mabry, TX||8 mi||79 min||S 7 G 17||10.00 mi||Fair||96°F||70°F||43%||1015.6 hPa|
|Austin Executive Airport, TX||18 mi||75 min||S 9 G 14||10.00 mi||Fair||91°F||71°F||52%||1017.3 hPa|
|Lago Vista TX, Rusty Allen Airport, TX||22 mi||75 min||S 9 G 14||10.00 mi||Fair||92°F||70°F||49%||1018.3 hPa|
|San Marcos, San Marcos Municipal Airport, TX||22 mi||75 min||S 11||10.00 mi||Fair||93°F||71°F||50%||1030 hPa|
Wind History from AUS (wind in knots)
|1 day ago||S|
|2 days ago||S||S|
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Weather Map and Satellite Images(on/off)  Help
|Weather Map ||IR Satellite Image from GEOS|
GOES Local Image of SouthCentralPlains EDIT
Wind Forecast for Austin/San Antonio, TX (15,3,4,5)(on/off)  Help
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