Storm Isaac to be downgraded

Tropical storm Isaac is forecast to become a tropical depression by the National Hurricane Centre later today. The Mayor of New Orleans has enforced a dawn-to-dusk curfew as Isaac continues to lash the city.

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Isaac storm surges and floods to last into the night

  • The US National Hurricane Center says storm surges and flooding are expected to last into the night
  • Isaac is now crawling from the Gulf Coast over Louisiana
  • The storm drove a wall of water nearly 11 feet high inland
  • More than 9 inches of rain had fallen by 12pm UK time
  • Flood protections system are holding up so far
  • US Army to remain on high alert for the next 12 to 24 hours
  • Power knocked out to more than 500,000 homes across southern Louisiana, most of them in New Orleans

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