Scientific Forecaster Discussion

NWS Discussion
			
				

Area forecast discussion 
National Weather Service Austin/San Antonio Texas 
302 PM CDT Thursday may 23 2013 


Short term (tonight through Friday night)... 
convection will develop over the Mexican mountains this evening 
and move toward the east. There is a slight chance for these 
storms to move into Val Verde County. Forecast cape is around 2000 
j/kg...so potential is for some storms to be severe. We have 
issued a Severe Thunderstorm Watch for Val Verde County until 10 
PM. The rest of the County Warning Area will be rain free as the upper level ridge 
continues to build over the Southern Plains. The surface high 
pressure is centered over the Gulf with southeasterly flow from 
the Gulf. This will keep moist air in place. Skies will become 
cloudy overnight. Friday an upper level short wave will move 
through the ridge and there will be another slight chance for 
thunderstorms over the western part of the region Friday and 
Friday night. 


&& 


Long term (saturday through thursday)... 
Saturday the slight chance will spread to the east as far as 
i10/i37. By Saturday night the upper short wave will move away 
ending rain chances for the area. Then the entire County Warning Area will be in 
the repeating pattern of overnight/morning clouds and clearing 
afternoons. Temperatures will warm and be mostly above normal. The 
next change will come Wednesday/Thursday of next week as an upper 
level trough will move into West Texas and bring a chance for 
thunderstorms to our County Warning Area. 


&& 


Preliminary point temps/pops... 
Austin Camp Mabry 74 93 73 94 71 / 10 10 10 10 - 
Austin Bergstrom international Airport 73 91 72 93 69 / 10 10 10 10 - 
New Braunfels Muni Airport 73 92 71 93 70 / 10 10 10 10 - 
Burnet Muni Airport 71 89 70 90 68 / 10 10 10 10 10 
del Rio International Airport 77 94 76 94 73 / 20 20 20 20 10 
Georgetown Muni Airport 72 89 71 91 69 / 10 10 10 10 - 
Hondo Muni Airport 75 94 74 93 71 / 10 10 10 20 10 
San Marcos Muni Airport 74 91 73 92 70 / 10 10 10 10 - 
La Grange - Fayette regional 75 91 74 91 71 / 10 10 10 10 - 
San Antonio International Airport 75 92 74 92 72 / 10 10 10 20 - 
Stinson Muni Airport 75 92 74 92 71 / 10 10 10 20 - 


&& 


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


$$ 


Mesoscale/aviation...01 
synoptic/grids...05 
public service/data collection...30