For Star subscribers: The 1887 Sonora earthquake drastically altered groundwater levels across Southern Arizona, drying some springs and wells while elevating water tables in other areas, impacting local communities and agriculture for decades.
- Griffin Salkowski
- Updated
The National Weather Service forecasts scattered showers and isolated thunderstorms in the Tucson region beginning on Saturday.
- Henry Brean
- Updated
Tucson’s 2026 monsoon season ended slightly above average with 5.73 inches of rainfall, boosted by moisture from Pacific cyclone Polo, surpassing the 30-year average of 5.69 inches. This marks a significant increase over last year’s 2.82 inches, reflecting a wetter season overall.
- Arizona Daily Star
- Updated
Mount Lemmon received over four inches of rain Tuesday, with significant rainfall measured across various locations in Tucson including Marana, South Wilmot Road, and the Arizona-Sonora Desert Museum. Tucson International Airport recorded 0.27 inches as the storm moved into New Mexico.
- Arizona Department of Transportation
- Updated
ADOT has reopened US 160 east of Kayenta after repairing flood damage near Dennehotso; drivers should use caution as crews finish minor work over two weeks.
- Ellis Sutton, Picture Rocks
Your Sunday banner says Polo could boost Tucson monsoon. What are you talking about? Monsoons are seasonal winds. Ours get here in mid to late…
- Griffin Salkowski
- Updated
If the forecast holds, Tucson could end the year with above-normal monsoon rainfall.
- Norma Coile
- Updated
If longtime Tucsonans can seem rather blasé about weather scenarios like the one in our regional news this week, 1997 may well be the reason.
- Arizona Department of Transportation
- Updated
ADOT is repairing storm-damaged US 160 near Dennehotso, aiming to restore two lanes by early October while closures and detours remain in place for drivers.
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