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Hurricane Hilary Intensifies to Category 4; Southern California Braces for ‘Once-in-a-Lifetime’ Storm

LOS ANGELES, CA (August 18, 2024) – Hurricane Hilary has rapidly intensified into a powerful Category 4 storm, churning towards Southern California with sustained winds of 145 mph. The National Hurricane Center (NHC) warns of potentially catastrophic impacts, including heavy rainfall, flash flooding, life-threatening storm surge, and damaging winds, starting this weekend. This marks an unprecedented weather event for the region, with a tropical storm of this magnitude not making landfall in California since 1939.

Unprecedented Threat to the Southwest

Hilary’s rapid intensification has taken many by surprise. Just 24 hours ago, the storm was a Category 1. This rapid strengthening is fueled by unusually warm ocean waters. The NHC predicts Hilary will maintain hurricane strength as it approaches the Baja California peninsula over the weekend, before weakening to a tropical storm as it crosses into Southern California.

"[This is] a very, very dangerous storm," warned National Weather Service Director, Ken Graham, in a press briefing. He urged residents to take the warnings seriously and prepare for what could be a "once-in-a-lifetime" weather event.

Evacuations and Emergency Declarations

Across Southern California, a sense of urgency hangs heavy in the air. Governor Gavin Newsom has declared a State of Emergency for much of Southern California, mobilizing resources and preparing for potential widespread damage. Coastal communities from San Diego to Los Angeles are bracing for significant impacts. Voluntary evacuations have begun in several low-lying areas, with mandatory evacuations anticipated as the storm draws closer.

The American Red Cross is opening shelters and urging residents to gather emergency supplies including water, non-perishable food, flashlights, and batteries. Local authorities are also advising residents to secure loose objects and prepare their homes for potential flooding and high winds.

Potential Impacts:

  • Heavy Rainfall: The NHC forecasts widespread rainfall totals of 3 to 6 inches, with isolated amounts up to 10 inches, across Southern California and parts of Nevada and Arizona. This level of rainfall could cause life-threatening flash flooding and mudslides, especially in mountainous and desert regions. [Check your local flood risk here.](flood risk here.com)
  • Storm Surge: Coastal areas, particularly in and around San Diego, could experience a significant storm surge, with water levels potentially rising several feet above normal. This could lead to coastal flooding and erosion. Learn more about storm surge.
  • Damaging Winds: Hurricane-force winds are possible in parts of Baja California. Southern California should expect tropical-storm-force winds, capable of downing trees and power lines.
  • High Surf: Large and dangerous waves are expected along the coast, creating hazardous swimming conditions and the potential for coastal flooding.

Stay Informed and Stay Safe

Residents are urged to stay informed about the latest developments by monitoring local news, the National Hurricane Center, and the National Weather Service. Follow instructions from local officials and heed all evacuation orders.

This is a developing story and will be updated as more information becomes available.

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