Hurricane Ida Flashcards
Category
4
Wind speeds
Above 150mph
August 23rd 2021
Atmospheric depression in Caribbean
August 29th 2021
Landfall in Grand Isle (Louisiana)
Where was advised to be evacuated
New Orleans, but passed by as unpredictable, Louisiana couldn’t without 72 hours
Intensification
Category 2 to 4 in 24 hours, rapid intensification as warm water in Gulf of Mexico
What is the effect of climate change
Less accurate prediction, no 4 and 5 doubled in past 3 decades, 80 hurricanes annually on average still
How many states crossed
8
What damage cost
$75b
How many dead
95
Grand Isle impact
700/2800 homes destroyed, not very wealthy, first landfall, 15ft storm surge, not very wealthy
Where in Grand Isle was less impacted
22ft, lateral bracing, metal roof, storm shutters, timber pylons
Louisiana impact
1m affected by powercut, 600,000 without water
Mississippi river impact
Temporary river flow reversal
Gulf of Mexico impact
Oil spill, 90% oil production shut
NYC impact
12 trains stranded on subway, bus drivers picked up pedestrians, longest 1hr rain in history at 3.5 inches
Why was NYC so impacted
Unprepared as 1000 miles away, even though only an extra tropical storm
New Orleans impact
Mostly spared despite predictions
Impact on flights
Cancelled
Impact on sugarcane
1/4 harvest destroyed
When does it die
Early September over N Atlantic
Amazon response
Donated over 550,000 supplies
Joe Biden response
Mobilised 5k National Guard and 25k other workers, extra funds
New Orleans Coast Guard response
Flew over to see impact
Direct Relief response
$100m medical resources made available, $1m donated
National Guard response
8,800 soldiers and airmen from 14 states respond to aftermath, rescued over 400, distributed 4.4m water bottles and 3.8m meals
