Saharan dust swirl Another major wave of Saharan dust crosses the Atlantic, captured here by NOAA's GOES East satellite on August 1, 2018. (NOAA screenshot)

(Bloomberg) – Atlantic storm watchers are going to have a hard time seeing the ocean, never mind any tropical systems, as another Saharan swirl of dust from Africa is moving west.

The dust, a marker for dry air, has spread out across the Atlantic and "that is really tamping down on the thunderstorm activity that we would typically see at this time of year,'' said Jeff Masters, co-founder of Weather Underground in Ann Arbor, Michigan.

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