So far, the 2025 hurricane season in the Atlantic Basin has been fairly tame with only four short-lived and fairly weak tropical storms: Andrea, Barry, Chantal and Dexter. The East Pacific Basin has been much more active with Tropical Storms Ivo and Henrietta ongoing as of Aug. 8.

(Photo: KDKA Weather Center)

While things in the Atlantic Basin have been fairly quiet, we are just now reaching the climatological uptick in tropical storm and hurricane frequency. Just in time for this climatological upswing, there are some indications that the main development region for Atlantic tropical systems will become active in the next seven to 10 days.

First, a large-scale atmospheric wave called the Madden Julian Oscillation or MJO is in a favorable phase to induce rising air for showers and storm

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