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

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908
FXUS64 KEWX 191123
AFDEWX

Area Forecast Discussion
National Weather Service Austin/San Antonio TX
623 AM CDT Mon Aug 19 2019

.AVIATION...
While MVFR cigs continue this morning at SAT/SSF, the ceilings that
had developed at AUS between 06z and 09z have already dissipated,
leaving AUS VFR. Expect clouds to stick around SAT/SSF for another
few hours before lifting and dissipating by 15z. A sunny VFR with
south and southeastly winds between 10 knots and 14 knots is
expected. A few higher gusts cannot be ruled out. Have introduced
another round of MVFR ceilings tonight at SAT/SSF, but given only the
brief MVFR window this morning at AUS have introduced only a
scattered deck for AUS for Tuesday morning.

&&

.PREV DISCUSSION... /ISSUED 404 AM CDT Mon Aug 19 2019/

SHORT TERM (Today through Tuesday)...
Subtropical Ridge settles over the Southern Plains/Rockies area.
Thermal ridge backs away slightly enabling high temperatures to ease
off a degree or two each day, though remaining well above normal.
Similar to the last few days, the usual spots could reach Heat
Advisory levels for an hour or so today. There is less of a threat of
Heat Advisory levels on Tuesday. Slightly deeper moisture moves back
into our area allowing the seabreeze to generate isolated showers
and thunderstorms near the Coastal Plains in the afternoon hours each
day.

LONG TERM (Tuesday Night through Sunday)...
The pattern mid to late week is similar to the short term and will
maintain above normal temperatures all areas and isolated showers
and thunderstorms near the Coastal Plains each afternoon. The
passage of several shortwaves across the Western States into the
Plains gradually breaks down the Ridge late week leaving a general
weakness in the pattern by next weekend. Enough consistency and
consensus has developed to bring isolated showers and thunderstorms
west to the I-35 corridor on Saturday, and most areas on Sunday.
Temperatures will remain above normal on Saturday and closer to
normal on Sunday. Just beyond this forecast, for Sunday night into
next Monday, the GFS gives some hope of more widespread showers and
thunderstorms. However, the ECMWF is much drier.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry             102  78 101  77 101 /   0   0  -    0  -
Austin Bergstrom Intl Airport 100  77  99  76  99 /   0   0  -    0  -
New Braunfels Muni Airport    100  75 100  74 100 /   0   0  -    0  -
Burnet Muni Airport           100  75  98  75  98 /   0   0   0   0  -
Del Rio Intl Airport          105  79 104  77 101 /   0   0   0   0  -
Georgetown Muni Airport       100  77  98  76  98 /   0   0   0   0  -
Hondo Muni Airport            102  75 101  74 101 /   0   0   0   0  -
San Marcos Muni Airport       100  75 100  75 100 /   0   0  -    0  -
La Grange - Fayette Regional  100  77  99  76  98 /  20   0  10   0  10
San Antonio Intl Airport      100  77  99  76  99 /   0   0  -    0  -
Stinson Muni Airport          102  77 101  76 101 /   0   0  -    0  -

&&

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

$$

Aviation...Treadway
Short-Term/Long-Term...04



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