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

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FXUS64 KEWX 171951
AFDEWX

Area Forecast Discussion
National Weather Service Austin/San Antonio TX
251 PM CDT Sat Jun 17 2017

.SHORT TERM (Tonight through Sunday Night)...
Upper air analysis this morning showed the subtropical ridge
extending across northern Mexico into Texas with the flow from the
north. At the surface, high pressure was centered over the Gulf and
winds were from the south to southwest. The upper level ridge will
remain in place keeping the weather dry during this period. The
surface high will shift slightly to the east turning the low level
winds to the southeast. This will bring temperatures down a degree or
two Sunday.

&&

.LONG TERM (Monday through Saturday)...
Monday a weak frontal boundary will stall across Central Texas and
isolated thunderstorms are possible over Llano, Burnet, and
Williamson Counties. Otherwise, the subtropical ridge will continue
to keep the weather dry and hot through Wednesday. Southeasterly
winds during this period will keep temperatures down a few degrees. A
tropical system is expected to develop in the southern Gulf of Mexico
early in the week and where and how this develops will influence the
forecast for later in the week. The ECMWF and GFS are significantly
different on this feature. The GFS is mainly dry for us and the ECMWF
has significant rainfall. Have trended toward the GFS for now with
only slight chance POPs and low rainfall totals.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry              76  98  75  94  74 /   0   0   0  10  10
Austin Bergstrom Intl Airport  76  98  74  94  73 /   0   0  -   10  10
New Braunfels Muni Airport     75  98  74  95  73 /   0   0  -   10  10
Burnet Muni Airport            74  96  74  92  72 /   0   0   0  20  10
Del Rio Intl Airport           77 104  76  99  76 /   0   0   0  -    0
Georgetown Muni Airport        75  97  74  92  73 /   0   0  -   20  10
Hondo Muni Airport             75 101  74  97  73 /   0   0   0   0  -
San Marcos Muni Airport        75  97  75  94  73 /   0   0  -   10  10
La Grange - Fayette Regional   77  96  75  95  75 /   0   0   0  10  10
San Antonio Intl Airport       75  99  75  96  74 /   0   0   0  10  -
Stinson Muni Airport           76 100  76  96  75 /   0   0   0  -   -

&&

.EWX WATCHES/WARNINGS/ADVISORIES...
Heat Advisory until 7 PM CDT this evening for the following
counties: Atascosa...Dimmit...Frio...Maverick...Zavala.

&&

$$

Mesoscale/Aviation...26
Synoptic/Grids...05
Public Service/Data Collection...YB



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