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Next 12 Hours

Forecast data from the National Digital Forecast Database.

5 Day Forecast

• Wednesday
• 
• High: 91 °
• Low: 70 °
• Partly Cloudy

• Thursday
• 
• High: 91 °
• Low: 70 °
• Partly Cloudy

• Friday
• 
• High: 91 °
• Low: 70 °
• Partly Cloudy

• Saturday
• 
• High: 90 °
• Low: 66 °
• Partly Cloudy

• Sunday
• 
• High: 93 °
• Low: 68 °
• Partly Cloudy

Area forecast discussion 
National Weather Service Austin/San Antonio Texas 
626 am CDT Wednesday may 22 2013 


Aviation... 
a band of MVFR ceilings has developed along the Rio Grande including 
kdrt while VFR few-scattered stratus prevails north of kuva to kpez to 
k3t5 line and scattered-broken stratus prevails south of line. Expect 
IFR/LIFR visibilities east of a Kile to kt35 to k11r line and IFR/LIFR 
ceilings southeast of a k11r to kcot line to remain just east and 
southeast of south central Texas. VFR skies will return to the Rio 
Grande by late morning. MVFR ceilings will develop across south 
central Texas overnight tonight and then mix out by late Thursday 
morning. Variable winds less than 5 kts will become S to southeast at 5 
to 12 kts across all of south central Texas by late morning into 
early afternoon and then prevail tonight into Thursday morning. 


&& 


Previous discussion... /issued 314 am CDT Wednesday may 22 2013/ 


Short term (today through thursday)... 
early this morning the weak frontal/outflow boundary extended from 
Eagle Pass to Three Rivers to Eagle Lake. Convection was still 
firing on this boundary across southeast Texas. The mesoscale-high 
located over northeast Texas will weaken today with southeast low 
level flow becoming re-established this afternoon across south 
central Texas. Afternoon highs will be slightly above normal 
ranging from the upper 80s across The Hill Country to middle 90s 
along the Rio Grande. Low clouds will roll in after midnight with 
a typical muggy night expected with morning lows slightly above 
normal. Thursday will start out cloudy but the afternoon will be 
mostly sunny and hot with highs closer to middle/late June normals. 


Long term (thursday night through tuesday)... 
a north/south upper level ridge axis will still be located over 
Texas on Friday and will remain entrenched across the region through 
the Holiday weekend. The ridge aloft will flatten out early next 
week as an upper level trough deepens over the western U.S. This 
is a dry synoptic scale pattern for south central Texas so no 
significant rainfall is expected. The persistent ridging aloft 
will also result in above normal temperatures. The surface 
pattern will be a persistent S to southeast low level fetch of the Gulf 
of Mexico. Thus the familiar late Spring/early Summer pattern of 
late night and morning low clouds can be expected. 


MOS guidance for high temperatures is trending towards climatology. 
Have gone above MOS guidance a couple of degrees based on our 
bias-corrected database. 


&& 


Preliminary point temps/pops... 
Austin Camp Mabry 91 71 94 72 93 / 0 0 0 - - 
Austin Bergstrom international Airport 90 69 92 70 91 / 0 0 0 - - 
New Braunfels Muni Airport 91 70 93 71 92 / 0 0 0 - - 
Burnet Muni Airport 88 68 91 70 89 / 0 0 0 - - 
del Rio International Airport 96 74 97 73 94 / 0 0 0 - - 
Georgetown Muni Airport 88 69 91 71 89 / 0 0 0 - - 
Hondo Muni Airport 93 71 96 72 93 / 0 0 0 - - 
San Marcos Muni Airport 90 70 92 71 91 / 0 0 0 - - 
La Grange - Fayette regional 89 72 91 73 91 / - 0 0 - - 
San Antonio International Airport 92 73 93 74 92 / 0 0 0 - - 
Stinson Muni Airport 91 72 93 72 91 / 0 0 0 - - 


&& 


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


$$ 


Mesoscale/aviation...04 
synoptic/grids...13