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Next 12 Hours

Forecast data from the National Digital Forecast Database.

5 Day Forecast

• Wednesday
• 
• High: 90 °
• Low: 72 °
• Chance of T-Storms

• Thursday
• 
• High: 90 °
• Low: 72 °
• Chance of Rain

• Friday
• 
• High: 88 °
• Low: 68 °
• Partly Cloudy

• Saturday
• 
• High: 90 °
• Low: 68 °
• Partly Cloudy

• Sunday
• 
• High: 88 °
• Low: 64 °
• Partly Cloudy

Area forecast discussion 
National Weather Service Houston/Galveston Texas 
601 am CDT Wednesday may 22 2013 


Discussion... 
see 12z aviation discussion. 


&& 


Aviation... 
convection...for the most part has waned or pushed east of southeast Texas 
early this morning. A weak outflow boundary has pulled up 
stationary near the coast and feel this feature could be a focus 
for additional rain showers/thunderstorms and rain later today. Added vcsh for klbx and kgls 
to account for this. Elsewhere...LIFR ceilings will affect the 
northern taf sites this morning before mixing out to VFR. The 
Houston taf sites are north of the convection and south of the 
LIFR ceilings but LIFR ceilings could still impinge on kiah before 
sunrise. 43 


&& 


Previous discussion... /issued 457 am CDT Wednesday may 22 2013/ 


Discussion... 
strong to severe thunderstorms with heavy downpours continuing 
over the eastern areas. Outflow pushed south with storm earlier 
this morning and now storms catching back up with the boundary and 
will pose a severe threat (wind) for another hour or so as it 
moves out of Liberty and possibly Chambers counties. Some 
potential early this morning for some backbuilding down the 
boundary and for heavy rains perhaps as far back as southeast 
Harris County. Expect the boundary to continue to drop slowly 
south and may become a focus for rain showers/thunderstorms and rain this afternoon with 
daytime heating and any that do form will be slow movers. 


Beyond today few changes noted to previous package. Onshore flow 
slowly strengthens and drier air in the wake of the short wave moves out 
into Gulf and then recirculates. Rain chances slowly increasing as 
boundary lifts north on Friday around Crockett and Groveton areas 
in the morning then westward during the day and again Saturday. 
Rain chances only 20 percent though as cap may be to strong. 
Temperatures at or just above seasonal norms through the weekend. 
45 


Marine... 
considerably lighter winds are expected today as the gradient 
relaxes. Surface high pressure will drift across the Central Plains 
on Thursday and Friday keeping light onshore winds in place. Onshore 
winds will prevail through the weekend with slightly higher speeds 
Sat night into Sunday 


&& 


Preliminary point temps/pops... 
College Station (cll) 91 72 91 71 90 / 10 10 0 10 20 
Houston (iah) 90 72 90 72 90 / 30 10 10 10 10 
Galveston (gls) 84 75 81 74 82 / 40 0 10 10 10 


&& 


Hgx watches/warnings/advisories... 
Texas...none. 
GM...none. 
&& 


$$ 


Discussion...45 
aviation/marine...43