Click here for current forecast.
Texas A&M forecast data: http://www.met.tamu.edu/t2k/
|Forecast discussion, Sun., Aug. 20,
Winds again stronger - SW 15 kt to 1.2 km, SE 15 above. Light
land breeze has developed at a few stations, but stronger winds
above surface should prevent much accumulation of nighttime plume.
Expect same evolution of winds as in the past few days light in
morning, picking up from south or southwest near noon, with sea and
bay breezes along coasts; southeast to south winds during the middle
and late afternoon. Expect max levels around 100-110 ppb due to
slightly stronger winds, Sunday emissions, and 40 ppb background
instead of 60 ppb.
Max T 97-99 F (37 C)
Quick Look at Tomorrow
Roughly similar today, except humidity (and cloud cover) will be
much higher (first isolated showers of the experiment likely) and
winds are expected to be lighter during the evening.
A ridge building over the southeastern US will bring unsettled
weather with possible widespread showers. Prevailing winds will be
from the east-northeast. Dirtiness of air mass will depend upon
extent of upstream and local showers, but it could be quite dirty.
Lighter large-scale winds than in the past few days would favor high
ozone. The urban plume would be advected toward the northwest, most
likely toward Austin.
Forecaster John Nielsen-Gammon