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Minor Risk of thunderstorm impacts through Thursday - mainly over elevated terrain areas.
Localized Major HeatRisk through Thursday. An Excessive Heat Warning in effect.
Thunderstorm coverage (30-60% chance) and intensity expected to increase Friday with areas of Moderate Risk.
Major Risk of thunderstorms with heavy flooding rainfall in SW Arizona & SE California Saturday and Sunday. Some significant flooding possible.
CHANGES FROM PREVIOUS BRIEFING
Large increase in Flood/Thunderstorm threat in SW Arizona & SE California this weekend.
WEATHER RISK OUTLOOK
Risk levels incorporate potential impacts from weather hazards and likelihood of occurrence.
FOR MORE INFORMATION
For the latest forecast updates, visit weather.gov/phoenix.