THE CLIFF NOTES
Today – 50% chance of storms. 97°, southwest wind 10-15 MPH.
Tonight – 50% chance of storms. 76°, south-southeast wind 5 MPH.
Tomorrow – 70% chance of storms. 89°, southwest wind 10-15 MPH.
The National Weather Service has issued a Flash Flood Watch for all of southern Arizona, in effect from 5 PM today until 11 PM tomorrow. This includes Metro Tucson, Nogales, Sierra Vista, Douglas, Safford, Oracle & surrounding communities.
Moisture from Tropical Depression Javier streams into the state over the next 72 hours. This elevates the potential for flash flooding, as any storm is capable of producing at least an inch of rainfall. Rain chances increase from 50% this afternoon & evening to 70% on Wednesday. Storm chances decrease starting Thursday as moisture from Javier shifts east.
While a few places may pick up 2″+ rain between this afternoon and late tomorrow night, most of southern Arizona should see 0.50-1.50″ rainfall. As a reminder, it can take as little as a foot of water to float most vehicles. Turn around, don’t drown!