Phoenix weather: Storms increase across Arizona this week

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By Tami Hoey By Tami Hoey

PHOENIX -- The high country is ringing in the month of July with thunderstorms.

Tuesday afternoon, the National Weather Service issued Severe Thunderstorm Warnings for at least two cells that produced wind gusts of up to 60 miles per hour, hail, rain and lightning. Isolated storms developed off and on across the Mogollon Rim and White Mountains, but stayed out of the Valley.

Phoenix Sky Harbor reported an afternoon high of 109. The normal high temperature for this date is 107.

A ridge of high pressure tracking across Arizona from the west will continue to bring with it Valley daytime highs of around 110 through Thursday.

Storms are once again expected to develop in the high country, but steer clear of the Valley Wednesday.

By Thursday, the ridge will shift towards the Four Corners region, allowing a southerly flow of monsoon moisture to increase dew points across much of Arizona. Storms are expected to develop this time across southeastern Arizona, along with the high country. Any storms that develop southeast of the Valley could kick up gusty outflow boundaries that may produce blowing dust during the afternoon and evening hours.

Storm chances in the Valley peak on Independence Day and into the first half of the weekend during the afternoon and evening hours. Temperatures are also expected to drop several degrees during the afternoon as moisture increases.