National Weather Service United States Department of Commerce
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Last Map Update: Sun, Jul 14, 2024 at 7:10:18 am MST

An Excessive Heat Warning remains in effect for portions of southeast California and the lower Colorado River Valley through 8 PM PDT this evening as peak heat indices this afternoon will range between 114-118 degrees across the lower elevations.
Above normal temperatures, although cooler than what was seen the last several days, will prevail through the upcoming week with widespread moderate HeatRisk.
Thunderstorm activity will be on the increase across the region later today. Activity will develop across the AZ high terrain this afternoon and then be steered into the lower deserts of south-central and possibly southwest AZ heading into the evening and overnight hours. Residents should plan for widespread gusty winds, especially from thunderstorm outflows. Some localized blowing dust will also be possible. While widespread heavy rainfall is not expected, some areas could see locally heavy rain.
The chances for shower and storms will continue through the upcoming week. During the first half of the week, the best chances for activity will be confined mainly to the higher terrain areas to the east of Phoenix. By the latter half of the week and next weekend, there will be increasing chances for more widespread activity, including for the lower deserts.


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