Weather
Arizona Flood Watch Today: Up to 2 Inches of Rain Per Hour Possible Oct 30
PHOENIX, AZ – Residents across the Phoenix metropolitan area and portions of south central Arizona face an elevated flash flooding threat Friday, Oct. 30, as heavy rain and thunderstorms move through
By Natalie Brooks · 2026-10-30T09:59:01.281Z
PHOENIX, AZ – Residents across the Phoenix metropolitan area and portions of south central Arizona face an elevated flash flooding threat Friday, Oct. 30, as heavy rain and thunderstorms move through the region. A second round of potentially significant rainfall is expected Saturday night through Sunday.
According to the National Weather Service in Phoenix, two Flood Watches have been issued for portions of Maricopa and Pinal counties, including Phoenix, Mesa, Scottsdale, Tempe, Chandler, Glendale and surrounding communities.
Friday, Oct. 30: First Flood Watch in Effect
The first Flood Watch remains in effect from 6 a.m. through 4 p.m. MST Friday.
Forecasters warn that thunderstorms could produce rainfall rates of 1 to 2 inches per hour, potentially overwhelming drainage systems and flooding roads, washes and low lying areas.
Phoenix faces a 100% chance of precipitation Friday, with highs near 75 degrees.
Rainfall amounts between one half and three quarters of an inch are possible locally, with higher amounts in thunderstorms.
Saturday Night Through Sunday: Second Flood Watch
A second Flood Watch begins at 11 p.m. Saturday, Oct. 31, and continues through 5 a.m. Monday, Nov. 2.
The National Weather Service expects another weather system to bring additional moisture and prolonged periods of moderate to heavy rainfall.
Saturday night carries a 90% chance of precipitation, increasing to 100% Sunday.
Additional rainfall of one half to three quarters of an inch is possible Saturday night, followed by three quarters to 1 inch Sunday.
Flooding Could Affect Roads and Neighborhoods
Excessive runoff could cause flooding along rivers, creeks, streams, normally dry washes and flood prone streets.
Travelers along Interstate 10, Interstate 17 and Loop 101 should monitor road conditions during heavy rainfall.
Residents should avoid flooded roads and never attempt to drive through moving water.
Monday, Nov. 2: Conditions Improve
Sunshine returns Monday, with highs near 74 degrees as the storm system moves away.
Residents should continue monitoring National Weather Service updates and be prepared to act if Flash Flood Warnings are issued.