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Southwestern United States
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- 1Tropical Storm Polo strengthens, threatens Mexico and US Southwest●Polo strengthens, poised to hit Mexico and soak Southwest US
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.