PHOENIX — Big changes are moving in as monsoon moisture increases across Arizona.
At the same time, a storm system will approach from the west and tap into lingering moisture from the remnants of what was once Tropical Storm Mario.
Together, these ingredients could trigger severe storms and flash flooding in parts of the state.
A Flood Watch is in effect until 2 a.m. Friday for La Paz and Yuma counties, including places like Yuma and Quartzsite.
Here in the Valley, our best chances for showers and thunderstorms will be Thursday evening and again on Friday.
Any storms that develop could bring gusty winds, blowing dust, frequent cloud-to-ground lightning, and heavy downpours capable of causing localized flooding.
Temperatures will drop into the upper 90s to end the week, but it will feel muggy as all that moisture surges in.
Another disturbance will increase cloud coverage on Sunday and Monday and could bring more shower and thunderstorm activity to parts of our state, including right here in the Valley.
Stay tuned to ABC15, abc15.com and ABC15 mobile for updates on that as we get closer.
