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

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FXUS64 KEWX 241820
AFDEWX

Area Forecast Discussion
National Weather Service Austin/San Antonio TX
120 PM CDT Sat Sep 24 2022

...New SHORT TERM, LONG TERM...

.SHORT TERM...
(Tonight through Sunday night)
Issued at 119 PM CDT Sat Sep 24 2022

An upper level low can be seen on water vapor imagery this afternoon
centered just west of the Rio Grande. Southerly flow on the eastern
side of the low over our area has allowed for just enough moisture
to return to our eastern counties this afternoon for some isolated
showers. Not much rainfall is expected out of this activity as rain
rates are not expected to be too high. Otherwise, temperatures are
currently in the upper 80s to lower 90s and highs later today should
top out in the lower to middle 90s for the most part. Any rainfall
activity should dissipate by evening with the loss of day time
heating. Some scattered to broken low clouds may be possible late
tonight and therefore with the increase in moisture, lows tonight
should be a bit warmer than previous nights, with temperatures in
the upper 60s to lower 70s.

The upper low is expected to be near the same place, and some
moisture advection could lead to an isolated shower out west
tomorrow afternoon. Highs will be in the lower to middle 90s for
most locations. A weak cold front will approach the area Sunday
night and could lead to a slightly higher coverage of showers and
and maybe a storm out west in the late evening hours. Otherwise,
lows will be in the upper 60s to lower 70s.

&&

.LONG TERM...
(Monday through Saturday)
Issued at 119 PM CDT Sat Sep 24 2022

Monday morning, an slow moving upper level trough axis near the
Lower Great Lakes with trailing sfc high pressure digging southward
across the Plains will support the passage of a cold front here in
south-central Texas. The front should exit to the south by midday
Monday, with only a couple isolated showers and maybe a rumble of
thunder possible along and just behind it mainly for the Rio Grande
Plains. A dry airmass will settle in then through the end of the
week. As a result, radiational cooling will help morning low
temperatures get progressively cooler by a degree or two each day,
bottoming out Friday morning in the mid 50s to low 60s. A few low
spots like AUS could even reach the low 50s briefly. It will be the
coolest air any of us have experienced since late May, over 4 months
ago! Diurnal temperature ranges will be relatively large, as highs
are still expected to reach the mid 80s to low 90s Wednesday through
Friday. A return to southerly flow is not likely to occur prior to
Friday night.

&&

.AVIATION...
(18Z TAFS)
Issued at 1127 AM CDT Sat Sep 24 2022

VFR conditions are currently prevailing across the region with sct
low clouds and VFR ceilings near the I35 sites. VFR should continue
to prevail this afternoon and evening with southerly wind speeds
around 10-13 knots. Can`t completely rule out a shower closer to the
terminals this afternoon, but chances are much too low to mention at
this time. SCT to BKN MVFR low clouds will be possible late tonight
for much of the area.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry              72  96  73  93 /   0  10  10   0
Austin Bergstrom Intl Airport  69  96  71  94 /   0  10  10   0
New Braunfels Muni Airport     71  96  70  96 /   0  10  10   0
Burnet Muni Airport            71  96  70  91 /   0  10  10   0
Del Rio Intl Airport           71  93  72  94 /   0  20  20  20
Georgetown Muni Airport        72  97  71  93 /   0   0  10   0
Hondo Muni Airport             72  95  71  96 /   0  20  10  10
San Marcos Muni Airport        70  96  71  95 /   0  10  10   0
La Grange - Fayette Regional   71  96  72  95 /   0   0  10   0
San Antonio Intl Airport       73  95  74  94 /  10  10  10  10
Stinson Muni Airport           73  96  74  96 /   0  10  10  10

&&

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

$$

Short-Term...29
Long-Term...KCW
Aviation...29


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