if you choose to leave today..kiss your credit goodbye. My daughter chose not to fly out to Tulum today from Toronto, but because the warning did not include today..she has lost everything. They recommended she travel to Tulum and risk being re-routed or cancelled and if they do land she can resume her holiday and keep her head down and watch for debris???? however if she chooses to leave once the storm hits then they will honour the credit..but either way she needs to do this for tommorow because the warning does not start till then!