The California ISO, the state's power grid operator, says nearly 5 million people in San Diego, Orange and Imperial counties may have been affected by a massive power outage.
By early Friday morning, power had been restored to 710,000 consumers in San Diego County, the utility said. Power was back on late Thursday for consumers in Arizona and California's Orange and Imperial counties. Millions, though, were still without power.
So, what do you need to keep in mind during the power outage?
The big three things to focus on, according to the Red Cross, are your food, any electrical equipment, generators and being aware of carbon monoxide.
If you are still om the critical 48 hours window from the time power has gone out there are still a few things you can do to preserve your food. Take a cooler and transfer any food you might want from the freezer or fridge to a cooler with ice or dry ice.
Your refrigerator will only keep food safely cold for about 4 hours if it is unopened and a full freezer will keep the temperature for approximately 48 hours, but only if the door remains closed. If you don't have dry ice to keep these items from going bad, consumption may leave you susceptible to illness from spoiled food.
Here are some tips from the FDA, USDA, CDC and The Red Cross on what to do:
Manage your electric equipment
When it comes to alternative power sources, beware of carbon monoxide
"The primary hazards to avoid when using alternate sources for electricity, heating or cooking are carbon monoxide poisoning, electric shock and fire," the Red Cross warns. A few tips on how to make sure you avoid coming into contact with it:
Maintain safe drinking water
The CDC says that when power is out some water purification systems may not fully function. Therefore, the best option for drinking, cooking and cleaning yourself includes bottled, boiled and treated water. Here are the CDC's rules when it comes to water in a power outage:
So what should you do if 48 hours has passed without ?
The USDA also provides specific guidelines on what to do with specific foods. Here's the list of what food you should throw out if it has been stored in temperatures above 40 Â°F for more than 2 hours in a refrigerator (Check the refrigerator temperature or use a thermometer to determine the temperature) :
MEAT, POULTRY, SEAFOOD
Throw out: Raw or leftover cooked meat, poultry, fish, or seafood; soy meat substitutes; thawing meat or poultry; meat, tuna, shrimp, chicken, or egg salad; gravy, stuffing, broth;Â lunch meat, hot dogs, bacon, sausage, dried beef; pizza â€“ with any topping ; canned hams labeled "Keep Refrigerated" or opened canned meats and fish.
Throw out: Soft cheeses like blue/bleu, Roquefort, Brie, Camembert, cottage, cream, Edam, Monterey jack, ricotta, mozzarella, Muenster, Neufchatel, queso blanco, queso fresco; shredded cheese or low-fat cheese.
Save: Hard cheeses like cheddar, colby, Swiss, parmesan, provolone or Romano; processed cheese; grated parmesan or romano cheese
Throw out: Milk, cream, sour cream, buttermilk, evaporated milk, yogurt, eggnog, soy milk; open baby formula and all types of eggs, custards and puddings.
Throw out: Fresh fruit or cut fruit
Save: Fruit juices and canned fruits even if they are opened; coconut, raisins, dried fruits, candied fruits or dates.
SAUCES, SPREADS, JAMS
Throw out: Opened mayonnaise, tartar sauce, horseradish or fish sauces (like oyster sauce); opened creamy-based dressings or opened spaghetti sauce.
Save: Peanut butter, jelly, relish, taco sauce, mustard, catsup, olives, pickles, Worcestershire, soy, barbecue or Hoisin sauces and opened vinegar-based dressings.
BREAD, CAKES, COOKIES, PASTA, GRAINS
Throw out: Refrigerator biscuits, rolls, cookie dough; cooked pasta, rice, potatoes; pasta salads with mayonnaise or vinaigrette; fresh pasta, cheesecake,
Save: Bread, rolls, cakes, muffins, quick breads, tortillas, waffles, pancakes or bagels.
Throw out: Cream-filled pastries; custard,cheese filled, or chiffon pies
Save: Fruit pies
Throw out: Cooked vegetables; pre-cut, pre-washed or packaged greens;Â tofu; opened vegetable juice, baked potatoes, commercial garlic in oil and potato salad.
Save: Fresh mushrooms, herbs, spices; raw vegetables;