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Area forecast discussion 
National Weather Service Austin/San Antonio Texas
310 PM CDT Tuesday Apr 28 2015

Short term (tonight through Wednesday night)...
afternoon water vapor satellite imagery shows an upper low over
North Texas with westerly flow and subsidence noted over south
central Texas. Late afternoon temperatures were in the 50s and 60s
across most of the region. Some record low maximum temperatures
are likely to fall today. Please see the below climate section for
more information. Otherwise...some weak radar echoes continue
across portions of The Hill Country into the adjacent I-35
corridor. We/ll leave a slight chance for showers in the forecast
for the above mentioned areas through mid-evening. With the loss
of daytime heating...any showers are expected to dissipate...so
we/ll go with a dry forecast for tonight. Otherwise...cloud cover
is expected to gradually decrease as winds decouple. This should
lead to good radiational cooling conditions overnight with lows
dropping into the 40s and 50s. The atmosphere continues to dry on
Wednesday and we expect mostly clear skies and high temperatures
in the 70s.

&&

Long term (thursday through tuesday)...
a dry and stable air mass will remain over south central Texas
through the end of the work week. This will result in a gradual
warming trend along with dry weather. Northerly winds will gradually
transition to a more southerly direction by Friday night. This will
allow for an increase in Gulf moisture through the upcoming weekend.
The increased moisture will interact with a weak upper level
disturbance moving in from the west and bring a chance for showers
and thunderstorms beginning late Sunday night along the Rio Grande.
Rain chances will then spread east across all of south central Texas
on Monday and Tuesday of next week.

&&

Climate...
record lows maximum temperatures for April 28th...

Austin Bergstrom....70 in 1965
Austin Camp Mabry...65 in 1932
del Rio.............64 in 1931
San Antonio.........65 in 1931

&&

Preliminary point temps/pops...
Austin Camp Mabry 51 76 54 80 57 / - 0 0 0 0
Austin Bergstrom international Airport 48 75 49 79 54 / - 0 0 0 0
New Braunfels Muni Airport 49 76 53 80 54 / - 0 0 0 0
Burnet Muni Airport 49 74 51 79 55 / - 0 0 0 0
del Rio International Airport 49 78 53 84 57 / 0 0 0 0 0
Georgetown Muni Airport 48 74 50 79 55 / - 0 0 0 0
Hondo Muni Airport 46 76 50 81 54 / 0 0 0 0 0
San Marcos Muni Airport 50 75 51 79 54 / - 0 0 0 0
La Grange - Fayette regional 50 74 52 78 55 / - 0 0 0 0
San Antonio International Airport 51 76 54 81 56 / 0 0 0 0 0
Stinson Muni Airport 53 76 54 80 56 / 0 0 0 0 0

&&

Ewx watches/warnings/advisories...
none.
&&

$$

Mesoscale/aviation...29
synoptic/grids...24
public service/data collection...30

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