Area Forecast Discussion
Issued by NWS Austin/San Antonio, TX
FXUS64 KEWX 271751
Area Forecast Discussion
National Weather Service Austin/San Antonio TX
1151 AM CST Mon Feb 27 2017
MVFR CIGs slowly lift to low end VFR CIGs most areas. However, clouds
mix out mainly across the Rio Grande Plains to the Edwards Plateau.
CIGs lower to MVFR this evening and IFR/LIFR overnight as patchy BR
with a mix of LIFR to MVFR VSBYs developing. BR and clouds lift on
Tuesday with VFR skies during the afternoon. S to SE winds 6 to 14
KTs across the east with 6 KTs or less out west.
.PREV DISCUSSION... /ISSUED 541 AM CST Mon Feb 27 2017/
We expect CIGs to drop to IFR within the next hour or two in Austin
and San Antonio. DRT will continue to see IFR. Improvement to MVFR
and VFR will come late morning or early afternoon. CIGs and VIS will
drop to IFR/LIFR overnight Monday/Tuesday.
PREV DISCUSSION... /ISSUED 428 AM CST Mon Feb 27 2017/
SHORT TERM (Today through Tuesday)...
The latest water vapor and infrared satellite imagery shows a fairly
active southwest flow aloft across south central Texas early this
morning. We have seen some weak echoes across Burnet and Williamson
counties this morning and several of the hi-res models suggest this
area could see enough lift for a few thunderstorms to develop.
Farther south across the I-35 corridor north of San Antonio and the
coastal plains, we will keep a low chance for showers this morning.
Areas of fog will also continue through mid-morning across portions
of the Hill Country, southern Edwards Plateau and Rio Grande plains.
Skies will remain cloudy across most areas through mid-morning, with
a clearing trend from west to east this afternoon. This should allow
temperatures to warm into the upper 80s along the Rio Grande to the
mid 70s farther east where clouds will linger. Temperatures continue
to warm on Tuesday with highs mostly in the 80s, except near 90 along
the Rio Grande. We will also continue to mention a low chance for
convection mainly east of Highway 83 given the warm temperatures and
an approaching upper trough axis.
LONG TERM (Tuesday Night through Sunday)...
As the above mentioned trough axis moves through Tuesday night, we
will continue a low chance for showers and thunderstorms across the
Hill Country and along/east of the I-35 corridor. We also expect a
cold front to move through late Tuesday night into Wednesday morning
and this could aid in the development of additional convection. The
cold front will quickly move east of the region by mid-morning
Wednesday, bringing gusty north winds and cooler temperatures in it`s
wake. Dry weather with near normal temperatures are in store on
Thursday. Temperatures continue to remain near normal on Friday as
some return flow begins to take shape. We will mention a low chance
for showers for areas generally along and south of Highway 90 on
Friday, with shower and thunderstorm chances expected across most
areas on Saturday and Sunday as the next upper level system moves
.PRELIMINARY POINT TEMPS/POPS...
Austin Camp Mabry 79 66 83 60 70 / 20 10 20 20 10
Austin Bergstrom Intl Airport 80 65 83 61 71 / 20 10 20 20 10
New Braunfels Muni Airport 81 65 84 61 72 / 20 10 20 20 10
Burnet Muni Airport 76 63 81 55 67 / 20 10 20 20 -
Del Rio Intl Airport 86 58 87 57 75 / 0 0 0 0 0
Georgetown Muni Airport 78 64 81 58 68 / 20 10 20 20 10
Hondo Muni Airport 82 63 86 58 76 / 10 10 20 10 -
San Marcos Muni Airport 80 65 84 61 72 / 20 10 20 20 10
La Grange - Fayette Regional 82 68 84 65 72 / 20 10 20 20 20
San Antonio Intl Airport 81 66 85 61 73 / 10 10 20 20 10
Stinson Muni Airport 82 66 85 62 75 / 10 10 20 20 10
Public Service/Data Collection...33