Wind: Light and variable in the morning becoming southwesterly and 10-15 mph in the afternoon
Friday
Stagnation: Morning stagnation
Wind: Light and variable in the morning becoming southwesterly and 15-25 mph in the afternoon
Saturday
Stagnation: Morning stagnation
Wind: Light and variable in the morning becoming southwesterly and 15-25 mph in the afternoon
Sunday
Stagnation: Morning stagnation
Wind: Light and variable in the morning becoming southwesterly and 10-20 mph in the afternoon
Monday
Stagnation: Morning stagnation
Wind: Light and variable in the morning becoming southwesterly and 10-15 mph in the afternoon
Discussion
An active weather pattern will be in store for the Southwest this week and weekend. Initially (today and Thursday), high pressure will try to retain some influence over the region. That's why daytime temperatures are above 110°F. However, a large low-pressure pattern will take shape over the West towards the end of the week. This new pattern will evict the high pressure and cause highs to drop below the 110° mark. Daily breezes are also expected.
On the windier days--namely Friday through Sunday--dust may be possible, particularly for dust-prone areas. We can also expect daily, elevated PM10 (dust) levels in industrial areas south/southwest of the Phoenix metro area. Highest PM10 levels typically occur in the mornings.
