TUCSON - The odds still favor a soggy end to the work week.
Abundant subtropical moisture streams into Arizona, courtesy of a slow moving storm system off the California coast. Scattered showers should start to develop around lunchtime, according to 4WARN Meteorologist Jeff Beamish. Rain chances jump from 60% later this afternoon to 100% tonight.
Widespread showers & high elevation snow continues through lunchtime Thursday. Daytime highs range from the mid 60s this afternoon to the upper 50s Thursday.
Models indicate scattered showers potentially redeveloping to wrap the work week. Metro Tucson stands a 30% chance of rain Friday.
Models in better agreement on rain totals through Friday. 0.30-0.75" rainfall for Metro Tucson, a few spots may approach 1". Heaviest amounts (1-1.5") in Santa Cruz & Cochise Counties. Lighter totals out west. #azwx #KVOAwx pic.twitter.com/dViOldkJzU— Jeff Beamish (@jeffbeamish) February 14, 2018
Forecast rain totals for the Old Pueblo should be in the 0.30-0.75" range through Friday evening. A few isolated spots in eastern Pima County may approach 1" amounts. Highest rain totals from this mid-week storm should be across Santa Cruz and Cochise Counties, where 1-1.50" rain is possible. Lighter totals are expected west of Tucson.
Due to the subtropical influence of this storm, snowfall levels should only fall down to 7,000 feet. Measurable snow above 8,000 feet is expected, with Mount Lemmon's highest peaks picking up 2-5" snow. 5-15" snow is possible on Mt. Graham and the White Mountains.
Drier weather resumes this weekend, followed by a slight shower chance early next week. Highs reach the low 70s Saturday through Monday.