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Monsoon Flooding Threats Continue; Storms Possible in the Mid-Atlantic

Monsoon moisture will primarily stretch from the northern Great Basin to the south and central Rockies. Flash flooding, and mud and debris flows, especially on burn scars will be possible. Strong to severe storms that could produce damaging winds and locally heavy rain will be possible in the Mid-Atlantic, Deep South, and Northeast. Fire weather threats persist for portions of the Northwest. Read More >


On Saturday June 6 much of Colorado experienced strong thunderstorm winds associated with a long-lived line of severe thunderstorms known as a derecho (pronounced deh-REY-cho). The derecho formed over eastern Utah in late morning, and moved across the mountains and the eastern plains in the afternoon and early evening. It went on to produce damaging wind all the way into the Dakotas and far northwest Minnesota by the morning of Sunday June 7. Earlier in the day and prior to the arrival of the storms, strong winds on the Colorado plains were clocked at 50 to 70 mph.

June 6-7 2020 Derecho path.
Path of the June 6-7 Derecho. Image source: NOAA/NWS Storm Prediction Center
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