>> we plan and prepare for the worst and hope we never have to use those plans. it may be in this particular time that will be the case. >> we're prepared for what could be a tough storm. we've got the folks on the ground, ready to hit the ground running and do everything we can to keep you safe. >> the u.s. president, joe biden, will be giving remarks and updates on the storm and also about afghanistan at 4:00 p.m. eastern time on sunday. cnn will, of course, carry that live. last hour i spoke with lieutenant commander robert mitchell. literally, he was flying through hurricane henri, aboard one of the hurricane hunter aircraft. here's how he's tracking the storm. >> every time we go into the storm, we're really just trying to measure the winds and the effects of the different dynamics of the storm as it's trying to grow and progress along its forecast track. what we try to do is provide information on the wind speed,