Southwestern United States

The USGS has published an assessment of regional impacts from a super El Niño event, focusing on the Southwestern United States. The outlook highlights heightened risks for the region, which typically faces heavier rainfall, flooding and storm damage during strong El Niño episodes. Interest is focused on what the strengthened pattern could mean for water supplies, infrastructure and communities across the Southwest.

Tropical Storm Polo has strengthened in the Pacific and is expected to make landfall in Mexico before its remnants push into the Southwestern United States. Forecasters warn of heavy rainfall and flooding across parts of Mexico and the US Southwest, including areas like Las Vegas, as the storm tracks north.