gas lines growing. food disappearing. and communities left scrambling. like déjà vu you know what i mean? new video from cuba offers a glimpse at the fast-moving storm. lashing the island with high winds and heavy rain. the real danger coming, as ida returns to the gulf where warmer waters could make it even stronger. we now believe that there is a strong likelihood that this will be a category 4 hurricane at landfall. that s how quickly the storm is developing. reporter: the weather crisis comes as louisiana hospitals face a flood of covid patients. with the governor urging everyone to get vaccinated. the fact that we re still in a pandemic makes this much more difficult for everyone. but the pandemic isn t gonna leave just because it s more inconvenient. reporter: equally daunting. a storm churning toward the coast so fast, mandatory evacuations from new orleans are now out of the question. the city cannot issue a mandatory evacuation because we don t have the time.