Friday, October 10, 2025
TROPICAL STORM PRISCILLA WEEKEND OUTLOOK - TUCSON
Key Points:
- A prolonged period of rainfall is expected Saturday through Monday, bringing widespread showers and isolated thunderstorms.
- Rain Chances: Friday 10–30% chance of showers and thunderstorms; Saturday–Monday 50–70% chance of rain.
- Potential Impacts: Running water in normally dry washes and low-water crossings. Higher rainfall will result in running washes (dry riverbeds), potentially reaching or exceeding bankfull levels.
- Rainfall Uncertainty:
- Most likely scenario: around 1–2 inches of rainfall Saturday through Monday.
TROPICAL STORM PRISCILLA WEEKEND OUTLOOK - GUADALUPE
Key Points:
- Tropical moisture will bring moderate to heavy rain through Saturday, primarily across southern and central Arizona.
- Flood Watches:
- Southeast California & southwest Arizona: In effect through this evening.
- Southcentral & eastern Arizona: In effect from this afternoon through Saturday.
- Next Week’s System:
- A second tropical system is expected to move just south of the area early next week, bringing additional chances for moderate to heavy rain—especially from Phoenix eastward and southeastward on Sunday and Monday.
- Forecast confidence: Still fairly uncertain for this system
SAFETY:
NEVER DRIVE THROUGH FLOODED ROADWAYS!
- 6 inches of fast-moving water can knock over and carry away an adult.
- 12 inches of fast-moving water can carry away a small car.
- 18-24 inches of fast-moving water can carry away most large SUVs, vans and trucks.
- TURN AROUND, DON’T DROWN!
KEEP UP-TO-DATE ON ROAD CLOSURES:
If you have trouble viewing the attachments you can view each weather outlook using the links below:
Priscilla Weekend Outlook - Tucson 10102025
Priscilla Weekend Outlook - Guadalupe 10102025
