FIRST ALERT ACTION DAY: Rain and cool temperatures expected across Southern Arizona KOLD First Alert Action Day (Source: KOLD News 13) By KOLD News 13 Staff | April 27, 2021 at 10:17 AM MST - Updated April 27 at 10:17 AM TUCSON, Ariz. (KOLD News 13) - Unseasonably cool and a wet storm are causing our meteorologist to issue a First Alert Action Day for Tuesday, April 27. Southern Arizona can expect to see a 50% chance for rain and even a few thunderstorms. Snow is also possible for mountain ranges down to 6500 feet with 1 to 3 inches above 7500 feet. The forecast predicts temperatures will drop to the upper 60s and then overnight lows will hit the upper 40s.