The weather was the worst it's ever been for this year's El Tour de Tucson. Usually the weather is just about perfect, but this year it rained pretty hard and the temperature was about 50 degreees F. This was the first year it had ever rained substantially during the 107-mile event. A number of riders had to be treated for hyperthermia after the race.
In addition, a cyclist was killed in an accident near the end of the race. John Henderson was struck from behind by a Nissan Leaf. The incident is still under investigation, but it was believed that the driver had a medical episode that caused him to lose control of the vehicle. This was especially sad because I have friends who know John well.
Additional info at Tucson Velo.