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

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FXUS64 KEWX 171138
AFDEWX

Area Forecast Discussion
National Weather Service Austin/San Antonio TX
638 AM CDT Thu May 17 2018

.AVIATION... /12Z TAFS/
Vfr skies should persist through late tonight with light to moderate
south to southeast winds. Wind speeds should be a bit higher with
some gusts over 20 knots possible at DRT. A gradual increasing trend
in the winds over the next 24 hours should bring about the return of
mvfr cigs and possibly some ifr cigs and some patchy fog to the
distant SE of the I-35 terminals. As was seen from a couple days
ago, the shallow saturation areas will probably make cigs scattered
along the I-35 corridor, and prone to dispersing early after
daybreak.

&&

.PREV DISCUSSION... /ISSUED 328 AM CDT Thu May 17 2018/

SHORT TERM (Today through Friday)...
Upper air analysis last evening showed a ridge extending from the
West Texas Panhandle to the Northern Plains with northwesterly flow
over Texas. At the surface, a stationary front was stretched across
Central Texas from Tyler to Brady to Midland. Winds were mainly light
and variable over the eastern half of our CWA and from the southeast
across the west. The upper ridge axis will move across Texas during
this period. Low level flow today will be from the south and this
will drive temperatures up to what will likely be the hottest day of
the year so far with the Rio Grande Plains seeing the first 100
degree day. This is about a week earlier than normal. Winds Friday
will shift slightly to the southeast and this will keep temperatures
down a few degrees.

LONG TERM (Friday Night through Wednesday)...
An upper level trough will move across the Rockies and turn the upper
flow over Texas to the southwest Friday night. Southeasterly low
level flow will continue into Sunday. Friday night and Saturday dry
weather will continue. A cold front will move into Central Texas
Sunday and stall across the region Monday. This will bring a chance
for showers and thunderstorms Sunday and Monday. Southwesterly upper
flow will continue into Monday. A shortwave trough will move across
our CWA Tuesday bringing a slight chance for showers and
thunderstorms to the western half of the area. Wednesday we will see
a slight chance for streamer showers.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry              71  95  72  93  73 /   0   0  -    0  10
Austin Bergstrom Intl Airport  68  94  71  92  72 /   0   0  10   0  10
New Braunfels Muni Airport     68  95  71  93  72 /   0   0  -   -   10
Burnet Muni Airport            68  93  70  90  71 /   0   0   0   0  10
Del Rio Intl Airport           72  99  73  95  73 /   0   0  10  -   10
Georgetown Muni Airport        69  93  71  91  71 /   0   0   0   0  10
Hondo Muni Airport             67  96  70  94  73 /   0   0   0  -   10
San Marcos Muni Airport        68  94  71  92  72 /   0   0  10   0  10
La Grange - Fayette Regional   70  94  72  92  72 /   0   0   0   0  10
San Antonio Intl Airport       70  95  72  93  74 /   0   0   0   0  10
Stinson Muni Airport           69  97  72  94  74 /   0   0   0   0  10

&&

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

$$

Mesoscale/Aviation...Oaks
Synoptic/Grids...05



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