Southwestern US Weather Update: Flood Watches Canceled, Diminishing Rain Threat

Are you looking for the latest Southwestern US weather update? Great news! The recent period of heavy rainfall and associated flood risks across parts of the region is now easing. Flood watches and advisories are being canceled in key areas, bringing a much-anticipated reprieve. This comprehensive report details the current weather situation, with a focus on Riverside County, California, and the Phoenix, Arizona metropolitan area, along with crucial updated safety recommendations for residents.

Riverside County, California Weather Update: Flood Advisory Expired

As of 3:49 p.m. on September 4, 2025, the National Weather Service (NWS) San Diego has officially canceled the flood advisory for Riverside County, California. The intense rainfall that caused recent concerns has significantly subsided, meaning no further widespread flooding is anticipated. Despite the improved weather conditions, residents must remain vigilant for persistent road closures resulting from earlier flood damage. The NWS also reiterates the importance of adopting safe driving practices, especially concerning potential hydroplaning risks on still-wet roads.

Phoenix Metropolitan Area Weather: Flood Watch Lifted, Lingering Thunderstorm Potential

The National Weather Service (NWS) has now canceled the flood watch for the Phoenix metropolitan area, confirming that the most significant rain threat has successfully passed. Despite this improvement, there remains a 30% chance of isolated thunderstorms overnight, mainly occurring between 2 a.m. and 5 a.m. The latest Phoenix weather forecast indicates a gradual return to its characteristic hotter, drier conditions:

• Friday: Expect a high of 94°F, with a 30% chance of afternoon thunderstorms, potentially increasing to 40% overnight.
• Saturday: Temperatures will reach a high of 95°F, accompanied by decreasing thunderstorm probabilities throughout the day.
• Sunday: Anticipate sunny skies and a high of 99°F, signaling a clear return to typical summer weather patterns for the region.

Essential Safety Considerations for Drivers During Inclement Weather

Both regions emphasize driver safety during and after inclement weather. Key recommendations include:

• Flood Safety Tips: It's paramount to never drive through flooded roadways—remember the adage, "Turn Around, Don't Drown." Even seemingly shallow moving water can quickly sweep away vehicles.
• Hydroplaning Prevention: Should your vehicle lose traction on wet road surfaces, gently ease off the gas pedal and steer calmly in your intended direction. Crucially, avoid any sudden braking maneuvers.
• Dust Storms Safety (Phoenix Area Specific): Although not an immediate concern for this update, drivers in the Phoenix area should always be prepared for the possibility of sudden dust storms, which can dramatically reduce visibility. If you encounter a dust storm, pull over safely off the road, turn off your lights, and wait for the storm to subside.

Regional Weather Alerts and Ongoing Advisories

Beyond the primary areas, other significant weather alerts persist in the wider region:

• San Bernardino & Imperial Counties: Flash flood warnings continue to remain in effect in these areas, urging caution.
• San Bernardino County: A severe thunderstorm warning has been issued, highlighting potential for intense storm activity.
• Modoc County: A red flag warning is in place, indicating a heightened risk of fire due to critical weather and dry conditions.

In summary, this latest weather update brings positive news, reflecting a significantly improving weather situation across Southern California and Arizona. While the immediate flood threats are receding, residents are strongly encouraged to monitor local forecasts and diligently follow all safety guidelines to ensure continued public safety. For the most current weather alerts and regional updates, always visit the official National Weather Service website or trusted local news sources such as the Modesto Bee.