Area Forecast Discussion
Issued by NWS Austin/San Antonio, TX

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FXUS64 KEWX 051918
AFDEWX

Area Forecast Discussion
National Weather Service Austin/San Antonio TX
218 PM CDT Wed Aug 5 2020

.SHORT TERM (Today through Thursday)...
Quiet but hot conditions are in store as ridging continues to build
across the southern CONUS from the west. A shortwave embedded in the
north to northwest flow aloft will pass well to our east today,
keeping skies clear and any chances for precipitation out of our
area. Blended model guidance continues to undershoot daytime highs,
thus opted for the high end of bias-corrected guidance. Highs are
expected to reach the upper 90s to mid 100s this afternoon as well
as Thursday, coolest in the Hill Country and warmest along the Rio
Grande as is typical. Dew points will mix out just enough to
preclude the need for Heat Advisory headlines, with heat index
values expected to top out around 107 in a few locations. Forecast
lows are in the 70s, with radiative cooling unlikely to be strong
enough to bring any 60s even for the Hill Country as atmospheric
moisture will remain elevated through the column despite the
subsidence provided by the strengthening high. The main weather
concern continues to be elevated fire weather conditions in Val
Verde County where RH will fall into the low to mid 20s in the
afternoons and winds will remain breezier than the rest of the
region.

&&

.LONG TERM (Thursday Night through Tuesday)...
Little change in the long term as the upper ridging remains the
dominant feature in the forecast. Dry and hot conditions will persist
through the period. Little to no chance for rain with some exception
of some seabreeze showers this weekend along the Coastal Plains. The
blended output has held back this with these rain chances as the
ridge grabs a tighter hold. Highs will remain above average and heat
indices remain elevated as well. Please practice appropriate heat
safety if outdoors.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry             100  77 101  75 100 /   0   0   0   0   0
Austin Bergstrom Intl Airport  99  74  99  75  99 /   0   0   0   0   0
New Braunfels Muni Airport     99  75 100  74  99 /   0   0   0   0   0
Burnet Muni Airport           100  74  98  73  99 /   0   0   0   0   0
Del Rio Intl Airport          104  77 104  78 104 /   0   0   0   0   0
Georgetown Muni Airport       102  75 100  75 101 /  -    0   0   0   0
Hondo Muni Airport            103  74 102  74 103 /   0   0   0   0   0
San Marcos Muni Airport       100  75  99  74 100 /   0   0   0   0   0
La Grange - Fayette Regional   99  76 100  77 100 /  -    0  -    0  -
San Antonio Intl Airport      100  76 100  75 101 /   0   0   0   0   0
Stinson Muni Airport          101  76 100  75 100 /   0   0   0   0   0

&&

.EWX WATCHES/WARNINGS/ADVISORIES...
None.
&&

$$

Short-Term/Aviation...KCW
Long-Term...YB
Decision Support...Hampshire


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