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 7:00AM||Sunset 8:08PM||Sunday August 20, 2017 3:05 AM CDT (08:05 UTC)||Moonrise 4:46AM||Moonset 6:32PM||Illumination 4%|
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7 Day Forecast for Marine Location Near Marble Falls, TXHourly EDIT Help
Area Discussion for - Austin/San Antonio, TX  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus64 kewx 200528|
area forecast discussion
national weather service austin san antonio tx
1228 am cdt Sun aug 20 2017
Aviation discussion For 06z TAF period...
at TAF issuance, skies were clear across all terminals with only high
clouds observed on satellite northwest of kdrt. Latest hi-res models
indicate some brief MVFR development at the san antonio terminals
around daybreak but looking like only periodic impacts. Thus
continued the previous forecast's decision for tempo this morning.
Kaus and kdrt expected to stayVFR throughout the next 24 hours.
Models are also keeping the area devoid of shra tsra this afternoon
Prev discussion... Issued 325 pm cdt Sat aug 19 2017
short term (tonight through Sunday night)...
a mid-to-upper level ridge of high pressure remains over south
central texas today, leading to hot and dry conditions with high
temperatures headed for the upper 90s and lower 100s. Relatively dry
surface dew points in the mid to upper 60s should keep heat index
values in the 100-105 degree for most spots this afternoon, with some
isolated higher values mainly east of i-35 in the coastal plains. The
relatively dry atmospheric profile with weak subsidence inversions
aloft should also prevent convection from developing this afternoon
over the region, with convection generally remaining north and west
of the region. Tonight should be similar to last night as mostly
clear skies will allow temperatures to fall into the mid 70s before
scattered to broken low clouds form along the escarpment by sunrise.
A weak upper level easterly disturbance moving in from the gulf and a
slow-moving trough over the western united states will help weaken
the ridge of high pressure slightly tomorrow. This weakening ridge
coupled with a slight increase in surface moisture ahead of the gulf
disturbance may allow for a slight decrease in temperatures and
slight increase in humidity tomorrow. Considering model guidance has
been running 1-2 degrees cooler than observed highs, we went ahead
and increased high temperatures slightly for tomorrow to keep them in
the upper 90s and lower 100s. If these values and the increased dew
points pan out, we should see a slight increase in heat index values
tomorrow more in the 103-108 degree range outside of the hill country
where values will be below 100. However, we should still be below
heat advisory criteria tomorrow, so our ongoing sps on elevated heat
indices should suffice. Moisture levels will not recover enough
tomorrow to overcome subsidence inversions aloft, so the region
should remain dry tomorrow as well.
Long term (Monday through Saturday)...
the weak upper level disturbance in the gulf (or tutt low) will
continue to approach the upper texas gulf coast for Monday and
Tuesday as the ridge continues to gradually erode. This should allow
for a gradual increase in cloud cover and humidity over most of the
region with isolated showers and thunderstorms in the coastal plains.
Temperatures should degrease a few degrees to keep most spots in the
upper 90s, but heat index values should still remain elevated in the
103-107 degree range for most spots due to the increase in humidity.
Confidence is increasing in the prospect of a weak front approaching
or moving into the region late Wednesday into Thursday as a strong
trough moves through the midwest with the ridge weakened considerably
over south central texas by the inverted trough. This should trigger
isolated to scattered showers and thunderstorms over at least
northern portions of the region for Wednesday with outflows helping
push the weak front further south for Thursday to bring rain chances
and slightly cooler temperatures to the entire region. There may be a
locally heavy rainfall threat along the front during these periods,
but there is also a chance that the subtropical ridge briefly
rebuilds from the west to keep the front north of our area.
The forecast past the middle of next week is even more uncertain as
what occurs during with the front during the middle of the week will
affect the strength of the ridge over the region for the later part
of next week. In addition, the remnants of harvey should move into
the bay of campeche on Thursday and Friday and begin to move
northwest into mexico for Saturday. Model ensembles keep the remnants
south of the rio grande, but the increased moisture should at least
give south texas and possibly the southern half of our CWA continued
rain chances into next weekend. Thus, there is at least a decent
possibility of a continued wet period and shift away from hot and
dry weather in the extended forecast.
Preliminary point temps pops
Austin camp mabry 101 76 100 76 100 0 - 10 - 10
austin bergstrom intl airport 100 75 99 74 98 0 - 10 - 10
new braunfels muni airport 99 75 98 75 98 0 - 10 - 10
burnet muni airport 97 73 95 73 95 0 - 10 - -
del rio intl airport 102 78 100 78 101 - - - - 10
georgetown muni airport 98 75 97 75 97 0 - 10 - 10
hondo muni airport 100 74 99 74 99 0 - - - 10
san marcos muni airport 100 75 99 75 99 0 - 10 - 10
la grange - fayette regional 99 76 99 75 99 - - 20 - 20
san antonio intl airport 99 76 97 76 98 0 - 10 - 10
stinson muni airport 100 76 99 76 99 0 - 10 - 10
Ewx watches warnings advisories
Mesoscale aviation... Tb3
synoptic grids... 24
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
|Horseshoe Bay Resort Airpark, TX||6 mi||70 min||S 7||10.00 mi||Fair||82°F||65°F||59%||1016.3 hPa|
|Burnet, Burnet Municipal Craddock Field, TX||11 mi||72 min||SSE 4||10.00 mi||Fair||81°F||66°F||62%||1015.1 hPa|
|Lago Vista TX, Rusty Allen Airport, TX||17 mi||70 min||S 6||10.00 mi||Fair||82°F||68°F||64%||1016.9 hPa|
Wind History from DZB (wind in knots)
|1 day ago||S||Calm||Calm||Calm||Calm||S||S||S||SW||SW||S||SW||Calm||S||SE||SE||E||SE||S||SE||S||S||S|
|2 days ago||S||S||S||Calm||S||Calm||SW||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 (4,6,7,8)(on/off)  Help
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