 The storm briefly re @-@ strengthened slightly on August 27 , reaching its maximum sustained wind speed of 105 mph ( 165 km / h ) for the second time at 1200 UTC . Vertical wind shear persisted and Danielle soon began to weaken again . Later on August 27 , the National Hurricane Center predicted that the storm would travel along the periphery of an anticyclone centered just east of Bermuda , which would keep the storm away from the East Coast of the United States . Despite being in an apparently favorable environment , Danielle continued to slowly weaken , as the forecast for decreasing wind shear did not initially materialize . Additionally , upwelling from Hurricane Bonnie roughly a week earlier contributed to a decrease in strength . Although the storm weakened further , reconnaissance aircraft observations on August 29 concluded that the structure of Danielle had improved compared to the previous day . By early on August 30 , Danielle had weakened to the extent that it was only a minimal hurricane , with maximum winds of 75 mph ( 120 km / h ) at the time . On August 30 , the National Hurricane Center noted that Danielle would soon leave the upwelling track left by Bonnie , and likely lead to intensification . Thus , the possibility of re @-@ strengthening increased , though predictions only showed gradual intensification . 
