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

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FXUS64 KEWX 222006
AFDEWX

Area Forecast Discussion
National Weather Service Austin/San Antonio TX
306 PM CDT Sat Apr 22 2017

.SHORT TERM (Tonight through Sunday Night)...
Temperatures remained steady in the upper 50s and 60s behind this
morning`s cold front as cold air advection and persistent low clouds
associated with isentropic ascent over the front has easily offset
any diurnal warming effects. Northerly winds are currently sustained
to 15 mph with gusts to 20-25 mph, but these should gradually subside
into the evening hours. Clouds are breaking up a bit over Val Verde
and Edwards Counties, but most spots should remain overcast until
perhaps an hour or two before sunset. Isentropic descent moving into
the region will continue to clear skies this evening from northwest
to southeast to set up a clear and cool night. However, winds tonight
will remain around 10 mph to allow for enough mixing to keep low
temperatures up in the lower to mid 50s in the Coastal and Rio Grande
Plains and mid to upper 40s in the Hill Country. Winds will continue
to weaken tomorrow afternoon under sunny skies to set up a beautiful
spring day with highs in the lower to mid 70s. Winds will be
relatively calm Sunday night into Monday as surface high pressure
moves over the region, allowing for the coolest temperatures we may
see until next fall with mid to upper 40s over most of the region
except the Rio Grande Plains where lows may remain in the lower 50s.

&&

.LONG TERM (Monday through Saturday)...
Temperatures will rapidly warm up for the first half of the work week
as southerly flow returns by Monday morning on the west side of the
surface high and southwest flow persists aloft. A weak shortwave may
trigger some isolated showers and thunderstorms as it moves through
the mountains in Mexico, but moisture return should be too limited to
allow any to cross the border. Behind this shortwave, temperatures at
850 mb will warm up significantly and mix down dry adiabatically
with southwest flow aloft to support highs in the mid 90s on Tuesday
and near 100 degrees in Rio Grande Plains with upper 80s to mid 90s
elsewhere. A trough moving through Oklahoma and Kansas on Wednesday
may drag a weak surface feature through on Wednesday evening, but
for now have kept the forecast dry as deeper moisture will be fairly
limited. Isolated showers and thunderstorms may be possible by the
end of next week as a deeper upper level trough digs into the Four
Corners region to help increase rain chances next weekend as another
cold front approaches the region.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry              50  73  49  81  61 /  -    0   0   0   0
Austin Bergstrom Intl Airport  49  73  45  81  59 /  -    0   0   0   0
New Braunfels Muni Airport     50  74  46  81  58 /  -    0   0   0   0
Burnet Muni Airport            47  71  46  80  60 /  -    0   0   0   0
Del Rio Intl Airport           51  77  53  85  62 /  -    0   0   0   0
Georgetown Muni Airport        48  71  47  80  61 /  -    0   0   0   0
Hondo Muni Airport             51  76  47  84  59 /  -    0   0   0   0
San Marcos Muni Airport        50  73  46  81  59 /  -    0   0   0   0
La Grange - Fayette Regional   51  72  47  81  60 /  -    0   0   0   0
San Antonio Intl Airport       51  75  49  82  60 /  -    0   0   0   0
Stinson Muni Airport           52  75  49  82  60 /  -    0   0   0   0

&&

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

$$

Mesoscale/Aviation...04
Synoptic/Grids...LH
Public Service/Data Collection...YB



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