Monsoons Return to the Southwest U.S.; Potential Atlantic Tropical System Interaction

In Arizona and New Mexico, heavy to excessive rainfall from monsoon thunderstorms may bring isolated flash and urban flooding Thursday into Sunday. The close proximity of Tropical Storm Humberto and a tropical wave (AL94) could lead to interaction between them, and details of their long-range track and intensity forecasts, and any potential impacts, are more uncertain than usual. Read More >

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This was the 2^nd warmest opening to a first week of September in Duluth weather history. The average temperature for the first seven days of the month averaged 69.6 degrees. The warmest such stretch occurred in 1971 with an average temperature of 71.1 degrees.

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Monsoons Return to the Southwest U.S.; Potential Atlantic Tropical System Interaction

2nd Warmest Opening to a September at Duluth