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

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839
FXUS64 KEWX 240538
AFDEWX

Area Forecast Discussion
National Weather Service Austin/San Antonio TX
1238 AM CDT Tue Apr 24 2018

.AVIATION...
VFR conditions will prevail overnight and and through the day today
with high clouds streaming into the region. Winds at SAT/AUS will
be light and variable overnight through mid-morning and then become
southeasterly at 5 to 10 kts. Winds at DRT will be southeasterly
around 10 kts overnight through mid-morning and then increase to 10
to 15 kts with gusts up to 25 kts.

&&

.PREV DISCUSSION... /ISSUED 313 PM CDT Mon Apr 23 2018/

SHORT TERM (Tonight through Tuesday Night)...
Light southerly flow develops tonight into Tuesday morning with low
level moisture slow to return. For this reason, will stick to
conservative PoPs for when an unstable NWly flow pattern develops
late Tuesday night over the Southern Edwards Plateau. The slow return
of dewpoints should lead to below normal mins tonight, then near
normal mins for Tuesday night. In between, abundant sun Tuesday
should bring above normal maxes. Clouds should increase late Tuesday
night with probably most of the clouds arriving in the mid levels.

LONG TERM (Wednesday through Monday)...
A cold front arrives Wednesday morning and brings enhanced lift to
add to the instability aloft, making for favorable conditions for at
least scattered convection. Typical NW flow events are progressive
and likely to produce hit-and-miss type coverage, especially given
the limited time for moisture to pool. Without a Gulf inflow to feed
the lingering NW flow pattern, expect the convection to be mainly
elevated with showers and weak thunderstorms. By Thursday morning,
the flow aloft becomes dry and stable in advance of a weather NW flow
perturbation bringing a mostly dry front into the area Friday
morning. The weaker front should allow for faster moisture recovery
over the weekend as the pattern becomes zonal aloft. Mostly stable
conditions are expected Saturday with a weak perturbation developing
convection over Nrn Mexico just to the west of our area during the
day. A persistent SW flow pattern aloft developing into next Monday
should looks to promote orographic convection over Mexico with weak
perturbations spilling NE into our forecast area lined with pacific
Moisture. This pattern should lead to continued mild weather and
isolated to low chance PoPs Saturday night into next Monday.

&&

.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry              87  60  78  53  77 /   0  -   30  30  -
Austin Bergstrom Intl Airport  86  58  78  52  77 /   0  -   30  30  -
New Braunfels Muni Airport     86  59  78  54  77 /   0  -   30  40  10
Burnet Muni Airport            86  59  73  49  76 /   0  -   40  30   0
Del Rio Intl Airport           92  66  75  57  80 /   0  -   60  40  -
Georgetown Muni Airport        85  58  77  51  76 /   0  -   30  30  -
Hondo Muni Airport             89  61  78  55  79 /   0  -   40  40  10
San Marcos Muni Airport        87  59  78  53  77 /   0  -   30  30  10
La Grange - Fayette Regional   84  60  80  55  76 /   0  -   20  30  10
San Antonio Intl Airport       87  61  78  56  78 /   0  -   30  40  -
Stinson Muni Airport           88  62  79  57  77 /   0  -   30  40  -

&&

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

$$

Mesoscale/Aviation...05
Synoptic/Grids...Hampshire



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