The project starts with a favorable monsoon pattern at 500 mb with the anticyclone centered between Winslow and Albuquerque.
Midlevel flow is very moist, but the lower desert is quite dry.
The Phoenix sounding is drier at 500 mb than any of the nearby soundings and is stable. A large MCS occurred during the night over Sonora and may indicate that low level moisture is nearby. Flow aloft above 400 mb is northwesterly and fairly strong. P chart of the 12 UTC sounding from Luke Air Force Base on July 10, 1994. Wind speeds are in knots.