Severe storms, flooding threat increases

Today's Forecast

Today's Forecast Image
  • 99°
  • 83°

The monsoon is expected to intensify Sunday evening, and that means a better chance of storms moving into the Valley through Monday morning.

An inverted trough situated across southeastern Arizona, deep moisture, decent dynamic forcing and higher instability will fuel thunderstorms, that could be severe at times, from the high country through the Valley.

Storms will develop first along the Mogollon Rim, White Mountains and SE Arizona late this morning and this afternoon. Steering flow will come from the east and southeast, so there's a good chance for storms and outflows to move into Metro Phoenix this evening and into early Monday morning. Some of these storms will be capable of damaging winds and large hail. These storms are also expected to be slow-movers, so with abundant moisture to work with, flash flooding will also be a threat from the mountains to the Valley. Blowing dust is also a possibility.

Storm chances remain elevated through Monday before the inverted trough tracks northward. This will open the door for a drier air mass to start moving into Arizona for Wednesday and Thursday, decreasing the amount of storms we see in Arizona, and dropping storm chances for the Valley.

High pressure will reposition itself across the Four Corners region by the end of the week and into next weekend, re igniting monsoon conditions and increasing storm chances once again.

In Metro Phoenix, look for a high of 99 today with a 20 percent chance of storms after 11 a.m. Storm chances increase to 40 percent this evening and into the overnight hours. For Monday, a high of 97 degrees with a 30 percent chance of storms is in the forecast. Storm chances drop to 20 percent Tuesday and 10 percent Wednesday, as highs rise back up to the low 100s.

-Meteorologist Kim Quintero

1-Day Forecast: Phoenix

Sunday
Sunday's Forecast Image
  • 99°
  • 83°

storms

Currently in Phoenix as of

  • 95°(Feels like 97°)
  • Broken Clouds
  • Wind: @ 0 mph
  • Barometer: 29.87 in.
  • Sunrise: 05:34:27 am
  • Sunset: 07:33:52 pm
  • Humidity: 36
  • Visibility: 10 mi.
  • UV Index: 8

Regional Conditions

Phoenix
95°

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      Weather Team

      Ashlee DeMartinoAshlee DeMartino is excited to finally be back in her hometown of Phoenix.

      Paul HortonMeteorologist Paul Horton loves Arizona. He worked as the morning meteorologist and host of the CBS morning show for eight years. He has done more 1,000 live shots in our state and is considered by many as the concierge of the Valley.

      Paul Horton
      CBS 5 Chief Meteorologist

      Royal NormanRoyal Norman and his wife, Nancy, moved to Arizona in the summer of 1981.

      Click to learn more about Royal.

      Royal Norman
      3TV Chief
      Meteorologist

      Kim QuinteroMeteorologist Kim Quintero joined 3TV in February 2013.

      Click to learn more about Kim.

      Kim Quintero
      3TV/CBS 5 Meteorologist

      Ian SchwartzAn Arizona native, born and raised in Mesa, and graduation of Arizona State University, Ian Schwartz is thrilled to be back in the Valley of the Sun.

      Click to learn more about Ian.

      Ian Schwartz
      CBS 5 Wake Up Meteorologist

      April WarneckeEmmy Award-winning meteorologist April Warnecke joined 3TV in 2005.

      Click to learn more about April.

      April Warnecke
      Good Morning AZ Meteorologist

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