[ADEQ Forecasts] Daily Air Quality Forecast For Saturday, February 14, 2009

Fri Feb 13 12:07:00 MST 2009

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Health message for Friday, February 13, 2009: No health impacts are expected.

Health message for Saturday, February 14, 2009: No health impacts are expected.

Synopsis and Discussion
Saturday marks the 97th anniversary of Arizona becoming a State.  It also happens to be Valentine's Day.  Because the tradition of exchanging cards, flowers and candy goes back to the mid 1800s, there's little excuse for forgetting this year, especially since weather should be pretty nice this Saturday.  Afternoon desert temperatures will be in the low to mid 60s.  Late-day breezes will make it feel a bit cooler, so jackets will be useful for evening plans.  Those breezes are associated with yet another disturbance on the weather train tracks that currently pass through Arizona.  It will be the wave late Monday (President's Day) that brings the best chance for rain.  Models suggest that showers will develop along the Colorado River region Monday evening.  They should spread east into the Phoenix Metro area by midnight, lasting through early morning.  Totals, however, have been hard to pin down.  Last night's run suggested a quarter to a half an inch.  This morning is going with less than a tenth of an inch.  Regardless, the increased moisture will help to keep Particulate concentrations in the "Good" range, where they have been for the last 6 days.  With the increased sun angle and time of daylight, Ozone levels have been inching upward ever so slightly.  It will likely be several more weeks, however, before we see that first "Moderate" Ozone reading of the year.  Check back Sunday to see if there are any changes in this active, yet elusive weather pattern.  Until then, have a great weekend!

If you have any questions or comments regarding this forecast please contact:
The Arizona Department of Environmental Quality
Office of Communications
1110 W Washington St, Phoenix, AZ 85007
(602) 771-4583 


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