A Flood Watch is in effect for much of the lower deserts and high terrain of southcentral AZ from Sunday evening through early Monday. An increase in moisture and atmospheric instability will combine with an incoming weather system to promote scattered thunderstorms. These storms will be capable of producing heavy rainfall. Training storms could result in localized heavier rainfall amounts of over two inches.
The increase in moisture and instability combined with an upper level disturbance to the west of the region will result in good chances for showers and storms across South-Central AZ, and the eastern higher terrain today and Monday. The main impacts from these storms will continue to be localized areas of heavy rainfall, frequent lightning, strong winds and dust. The timing of these storms are likely to remain in the evening to overnight periods.
We will begin a stretch of near to below normal temperatures today and continuing through the first half of this week. This will also result in the HeatRisk remaining in the Minor to Moderate category.
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