[ADEQ Forecasts] ADEQ AIR QUALITY FORECAST FOR SATURDAY, AUGUST 16, 2008
Fri Aug 15 11:45:25 MST 2008
For transportation alternatives:
Health message for Friday, August 15: Unusually Sensitive People should
consider limiting prolonged exertion outdoors.
Health message for Saturday, August 16: Unusually Sensitive People
should consider limiting prolonged exertion outdoors.
Synopsis and Discussion
Another good storm complex blew into the east Valley Thursday night,
dropping around a tenth to a half an inch of rain in many locations.
And the west side? Just some wind. Phoenix Sky Harbor officially
received 0.15 inches for a total of 1.48 inches so far in the month of
August. That's now 3.63 inches for this 2008 monsoon season, making it
the 5th wettest in the last 20 years (27 in the last 113 years)- and we
still have a month and half before it's all over!
The threat of more showers will continue through the weekend, with
mainly overnight showers and early morning clouds. High pressure will
weaken through next week, slipping southwest of Arizona. This means
drier air from the west could suppress monsoon activity for much of next
week. We are about to enter the waning part of this thunderstorm season
where we look to the west coast of Mexico for tropical storms to move
north into our region. Right now there is nothing on the horizon.
It's been an interesting air quality week with three Health Watches
issued and one day where ozone exceeded the health standard.
Particulates reached the "Moderate" range on three days this week.
Typically, storms out of the north don't generate as much blowing dust
as storms from the Tucson area which have plenty of desert to work with.
Expecting northerly winds the next several days, the risk of increased
particulates due to blowing dust should be low. Ozone should be in the
low to mid "Moderate" range this weekend as the drier westerly to
northerly winds keep ozone generation over the Valley to a minimum.
Check back on Sunday for any changes and the latest on the coming week's
weather and air quality. Have a great weekend! -J.Paul
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