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000
FXUS64 KEWX 221146
AFDEWX

Area Forecast Discussion
National Weather Service Austin/San Antonio TX
646 AM CDT Thu Jun 22 2017

.AVIATION...
VFR flying conditions prevail at the TAF sites today through Friday
with cirrus and daytime cumulus. Direct impacts from Tropical Storm
Cindy moving to the north along the Texas/Louisiana border region
will be east of all TAF sites, mainly along and east of a KTPL to
K3T5 to KVCT line, with SOLD SHRA/TSRA and TEMPO MVFR CIGs possible
this morning into mid afternoon. NW to W winds of 4 to 10 KTs become
S tonight and increase to 8 to 14 KTs Friday. Except, E to SE winds
of 5 to 10 KTs prevail out west.

&&

.PREV DISCUSSION... /ISSUED 341 AM CDT Thu Jun 22 2017/

SHORT TERM (Today through Friday)...
Other than few to scattered upper level cirrus clouds across the
eastern counties early this morning, expect dry and hot weather
conditions as the day progresses. Chances for rain are confined to
areas along and east of Highway 77 as tropical storm Cindy makes
landfall near the Louisiana-Texas border later this morning. Dry
weather conditions are anticipated later this evening into Friday as
moisture associated with Cindy pushes to the northeast and away from
South Central Texas.

Today`s high temperatures are forecast to reach the upper 90s across
much areas and up to 104 over parts of the Rio Grande Plains. Heat
indices are expected to range from 100 to 106 mid-afternoon through 6
pm.

Southerly flow returns this evening as Cindy circulation moves to the
northeast. This translate into higher temperature dewpoints and
warmer temperatures on Friday morning. This trend continues
throughout the day on Friday with high temperatures expected to
reach the 100 degree mark for much of the area with upper 90s across
the Hill Country. Heat indices are anticipated to range from 104 to
110 degrees in the afternoon period. If this trend continues, a Heat
Advisory will likely be issued for Friday afternoon during the
overnight weather package on Friday.

LONG TERM (Friday Night through Wednesday)...
Chances of rain will be increasing over the weekend into early next
week as several outflow boundaries are expected to push from west
Texas into our area and combine with a weak frontal boundary and
remnant moisture of Cindy. Medium-range models are having
difficulties handling the position of the weak frontal system and the
strength of the subtropical upper level ridge across the desert
southwest. However, later in the week, the subtropical ridge is
expected to further push to the east and into our area to mark the
end of rain chances across South Central Texas.

Will get a bit of a break from the upper 90s and near 100 degree days
over the weekend through early next week due to cloud coverage and
chances of rain.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry              95  77 100  77  92 /   0   0  -   20  40
Austin Bergstrom Intl Airport  95  76 100  76  91 /  -    0  -   20  40
New Braunfels Muni Airport     98  75 100  76  91 /   0   0   0  10  40
Burnet Muni Airport            93  73  99  74  89 /   0   0  -   20  40
Del Rio Intl Airport          102  77 105  79  96 /   0   0  -   10  10
Georgetown Muni Airport        93  76  99  75  90 /   0   0  -   20  40
Hondo Muni Airport            101  75 102  77  95 /   0   0   0  10  30
San Marcos Muni Airport        95  76  99  76  92 /   0   0   0  20  40
La Grange - Fayette Regional   93  78  98  77  90 /  20  -   10  20  40
San Antonio Intl Airport       98  77 100  78  93 /   0   0   0  10  40
Stinson Muni Airport          100  77 102  78  93 /   0   0   0  10  40

&&

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

$$

Mesoscale/Aviation...04
Synoptic/Grids...17