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

Heavy to excessive rainfall from monsoon thunderstorms may bring isolated flash and urban flooding to the Desert Southwest into Sunday. The tropical wave (AL94) continues to bring heavy rainfall to Puerto Rico and the US Virgin Islands. The close proximity of Tropical Storm Humberto and AL94 could lead to interaction between them, but details of their track and intensity forecasts remain uncertain Read More >

This is just one of our many short range forecasts in depicting how the thunderstorms "may" develop this afternoon through tonight. The last couple model runs have been fairly consistent showing the stronger storms may potentially scoot from the Turtle Mountains into northeast North Dakota around midnight and beyond. We'll see!