Bart intensified further as it turned to the northeast under the influence of upper-level winds.
Since the upper-level wind had not yet become conducive for tropical cyclone development, the system remained disorganized throughout the day.
As it did so, the combination of warm air from the south and strong upper-level winds caused the low to rapidly intensify.
Strong upper-level winds battered the storm from the northwest.
However, shortly thereafter, Marco began to move into a less favorable environment with strong upper-level westerly winds.
Upon attaining this intensity, the storm became embedded within an area strong, divergent, upper-level winds.
Strong upper-level winds caused when satellite imagery showed a circulation developing over the Bahamas.
Despite favorable upper-level winds and falling atmospheric pressures, there were initially no signs of a circulation at the surface.
Despite upper-level winds, the storm continued to strengthen and Allison became a hurricane on June 4.
However, the low remained disorganized because of strong upper-level winds.