A: A blizzard is a severe snowstorm that is characterized by strong winds (over 35 mph) and low visibility (less than 1/4 mile). Blizzards can be very dangerous, as they can cause power outages, road closures, and even loss of life.

Here are some of the factors that can contribute to the formation of a blizzard:

* Cold air: Blizzards are most common in cold climates, where the air is already below freezing.

* Moisture: Blizzards also require a source of moisture, such as a lake or ocean.

* Wind: Strong winds are needed to lift the snow into the air and create the blizzard conditions.

* Terrain: The terrain can also play a role in the formation of blizzards. For example, mountains can help to channel the winds and create stronger blizzards.

Blizzards can occur anywhere in the world, but they are most common in the northern United States, Canada, and Russia.

Q: Is this El Niño?

A: El Niño is a climate phenomenon that occurs in the Pacific Ocean. It is characterized by unusually warm ocean temperatures in the central and eastern tropical Pacific Ocean. El Niño events can have a significant impact on weather patterns around the world, including causing changes in precipitation patterns, sea levels, and storm activity.

The current El Niño event began in 2015 and is expected to last through 2016. It is one of the strongest El Niño events on record.

The El Niño event is causing a number of changes in weather patterns around the world, including:

* Increased precipitation in the southern and eastern United States, as well as in South America and Australia

* Drought in the western United States, as well as in Southeast Asia and Africa

* Increased storm activity in the Pacific Ocean, including more frequent and intense hurricanes and typhoons

The El Niño event is also expected to have a significant impact on the global economy. For example, it is expected to cause crop failures in some areas, which could lead to food price increases. It is also expected to cause disruptions to the fishing industry, as well as to tourism and other industries.