Southern California and the Pacific coast of Mexico are bracing for a storm as Hurricane Hillary makes its way up north. It has already hit parts of Mexico, bringing heavy rainfall to some areas that have been badly hit with massive droughts.

The National Hurricane Center has already released a public advisory regarding Hurricane Hillary right after it strengthened to become a hurricane as it moved northward from Mexico. However, Greg Postel, a hurricane and storm specialist at the Weather Channel, told CBS News that the storm "is not expected to be a hurricane on final approach."

It is expected to bring heavy rainfall to the Southwestern United States starting Friday and will continue until early next week.

Hurricane Hillary is expected to peak around Sunday and Monday next week. Large swells along the Pacific coast are also expected, along with strong winds in some parts of California, including the Los Angeles Basin.

It is rare - indeed nearly unprecedented in the modern record - to have a tropical system like this move through Southern California," Postel said.

As of Thursday night, Hurricane Hillary was found around 430 miles south of Cabo San Lucas, Mexico. It had maximum sustained winds of 125, moving west-northwest at the speed of 14 mph.

Hurricane Hillary Expected To Bring Potential Flooding

Along with the heavy rainfall that Hurricane Hillary is expected to bring to California and parts of the Southwestern United States, there might also be some heavy flooding, with Southern California expected to receive the heaviest rainfall once the storm finally arrives from Mexico.

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Nevada is also expected to receive some much-needed rainfall in some parts from Saturday to Monday, with around 2 to 4 inches of rain, with the heaviest rainfall expected around Sunday and Monday.

Parts of Arizona, which is currently experiencing a historic heatwave, may experience some reprieve as around 1-2 inches of rainfall is expected in the area, along with Central California and northern Nevada.

CNN is warning that these multiple days of heavy rainfall will give the ground little opportunity to absorb moisture. This could worsen progressively and lead to flooding. UCLA climate scientist Daniel Swain told the network that "multiple years' worth of precipitation" could potentially fall in some of California's driest areas.

Red Cross Advises How To Prepare for Hurricane Hillary

As Hurricane Hillary, the first tropical storm to hit California in decades, approaches Southern California, the Red Cross posted several tips on how best to prepare for this incoming storm.

The first step is to create an evacuation plan, including planning what to do in case you are separated from your family during an emergency and if you must evacuate. The Red Cross stressed that pets should be included in that emergency plan.

The health organization also advised having an emergency kit that contains a gallon of water per person per day and non-perishable food. Other items, such as a flashlight, battery-powered radio, first aid kit, medications, personal hygiene items, 

supplies for infants or pets, multi-purpose tool, copies of important papers, cell phone chargers, extra cash, and blankets must also be included. You should also have maps of the area and emergency contact information ready.

It is also important to be informed. This can be done by following what local officials are doing, as well as finding out if there are evacuation orders. Tuning into local news and radio will also be a big help just in case of an emergency.

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This article is owned by Latin Post.

Written by: Rick Martin

WATCH: Hurricane Hilary could be 1st tropical storm to hit California since 1939 - ABC7 News Bay Area