Arizona’s 2017 monsoon is well underway.

Here are the latest updates on storm activity and forecasts affecting the Phoenix area.

Aug. 12, 10:30 p.m.: Thunderstorms hit Phoenix area

The National Weather Service issued a severe thunderstorm warning for Maricopa County. 

Strong thunderstorms were developing over parts of the East Valley with high winds of up to 55 mph. A severe thunderstorm warning was issued to include Mesa, Chandler and Scottsdale until 11:15 p.m.

Heavy rain was also being reported in the West Valley. High winds and hail were also possible, particularly for Surprise, Avondale and Goodyear.

A flash flood Warning was also issued for Goodyear and areas north and west of that.


Aug 12, 7:30 a.m.: Storms return, but sunny skies to prevail in Phoenix

The weekend got off to a stormy start as monsoon moisture returned to the Valley early Saturday, but clear skies are forecast to make a swift return. 

Morning showers and thunderstorms dropped up to an inch of rain in the city of Maricopa, prompting the National Weather Service to issue a flood advisory for parts of Maricopa and Pinal counties.

Those storms also ushered in gusty predawn winds. 

Most of those storms had dissipated by 7:30 a.m., though a slight chance of storms remains in the forecast for the Phoenix area through the weekend. 


Aug. 10, 11:10 a.m.: 30 percent chance of showers Thursday afternoon

The recent dry spell in the Phoenix area is mostly likely coming to an end.

The National Weather Service forecast calls for a 30 percent chance of showers in the Valley starting Thursday afternoon. A chance of thunderstorms will continue throughout the weekend.

This means we can expect a dip in temperatures but an increase in dew point.

The expected high Thursday is 108 degrees with a low of 86. The temperature was 

Friday will be partly sunny with a high of 106 and low of 85. A 10 percent chance of thunderstorms Friday night continues into Saturday, when the high will be 105 and the low 84.

The best chance of storms will be Saturday night, at 40 percent.

There’s a 20 percent chance of rain all day Sunday, and the expected high is 102; the low should drop to 83. 

Aug. 4, 12:30 p.m.: 10 percent chance of showers; dry days to follow

There’s a 10 percent chance of rain in the Phoenix area on Friday, with dry days ahead, according to Andrew Deemer, meteorologist with the Phoenix National Weather Service.

This weekend, expect clear skies and maybe a few, high passing clouds, Deemer said.

High temperatures will continue in the triple digits, reaching 104 today and making its way up to 108 by Wednesday.

Aug. 3, 5 p.m.: Storms bring heavy rains throughout Phoenix metro area  

Heavy rains were rolling through the Phoenix metro area from the north and east, and the National Weather Service issued several thunderstorm warnings for several areas, including the north Valley and southeast Valley.

Aug. 3, 4:30 p.m.: Heavy storms head through northeast Valley

Heavy storms were threatening areas of the northeast Valley on Thursday afternoon.

A severe thunderstorm warning was in effect for areas that included Carefree, Cave Creek and Fountain Hills until 4:45 p.m., the National Weather Service said. 

Storms also were developing near Paradise Valley, Scottsdale and northeast Phoenix bringing heavy rain and winds up to 30 mph, the National Weather Service said.   

The storm should bring heavy wind and rain north of the Valley on interstate 17, according to the Arizona Department of Transportation.

Aug. 2, 4:45 p.m.: Dust blows through southeast Valley

Heavy dust began moving through the southeast Valley late Wednesday afternoon, as outflows from storms south of the Phoenix area began impacting the region, the National Weather Service said.

Aug. 2, 3:45 p.m.: Low chance of rain in Phoenix area; be alert if traveling

The Phoenix area can still hold onto chances of seeing showers and thunderstorms Wednesday evening, according to the Phoenix National Weather Service.

Meteorologist Jessica Nolte said a significant cloud deck has traveled north from Pima and Pinal counties to south Valley areas, leaving a 20 percent chance for rain.

If the clouds stick around, nighttime temperatures will stay on the warm side, Nolte said.

Daytime humidity has been around 30 percent and is expected to be in that range tomorrow as well.

She also warned people traveling in rural or desert areas to be aware and focused in case they do come across water or storm runoff. Storms in northwest Arizona may produce flash flooding, Nolte said.

Aug. 1, 6:20 p.m.: More dust move through south Valley; rainbow shoots over U.S. 60 in Mesa

A rainbow shot over U.S. 60 near Ellsworth Road in Mesa shortly before 6 p.m. as storms rolled through the Southeast Valley Tuesday.

More dust also moved through the south Valley,  shrouding  Ahwatukee and South Mountain.

Aug. 1, 5:15 p.m.: Storms pour through southeast Valley 

As storms move through the southeast Valley, the National Weather Service issued a severe thunderstorm advisory for an area that includes Apache Junction, Gold Canyon Queen Creek and San Tan Valley.

The heavy downpour brought lightning, dust and gusts of 60 miles per hour through much of the areas of the Southeast Valley.

More than  1.6 inches of rain hit Gold Canyon and nearly a half an inch of rain fell in New River late Tuesday afternoon, according to the Flood Control Distict of Maricopa County.  

Aug. 1, 4 p.m.: Weather advisory for areas in far East Valley, northeast communities

The Phoenix National Weather Service is warning several areas of significant thunderstorm activity including Apache Junction, Florence, Superior and East Mesa.

The weather advisory is in effect until 4:30 p.m., according to a tweet from the National Weather Service in Phoenix.

Weather activity includes strong, gusty winds, heavy rainfall and lightning.

Thunderstorms also were moving into the north and northeast Valley, including Cave Creek, Carefree, north Scottsdale, Fountain Hills, New River and Anthem.

Aug. 1, 10 a.m.: Humid, 40 percent chance for storms

The far southeast and far West Valley got some storm activity Tuesday morning, with measurable rain before 10 a.m. in Queen Creek and San Tan Valley, and a downpour in Tonopah.

Rain or no, it’s muggy in the Valley today. 

Ken Waters, warning coordination meteorologist with the Phoenix National Weather Service, said there is a 40 percent chance of rainfall this afternoon and early evening in the Phoenix area.

Expect a high temperature of 106, Waters said. The humidity will help lower the mercury on Wednesday to 101 degrees.

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