(CNN) -- Here is a look at the 2017 Atlantic hurricane season.
The 2017 Atlantic hurricane season runs from June 1 to November 30. The areas covered include the North Atlantic Ocean, Gulf of Mexico and the Caribbean Sea.
The National Weather Service defines a hurricane as "an intense tropical weather system with well-defined circulation and sustained winds of 74 mph (64 knots) or higher."
Hurricanes are rated according to intensity on the Saffir-Simpson Hurricane Wind Scale.
The 1-5 scale estimates potential property damage.
A Category 3 or higher is considered a major hurricane.
The National Hurricane Center advises preparedness:
A hurricane watch indicates the possibility that a region could experience hurricane conditions within 48 hours.
A hurricane warning indicates that sustained winds of at least 74 mph are expected within 36 hours.
April 6, 2017 - The Tropical Meteorology Project from Colorado State University predicts that the "2017 Atlantic basin hurricane season will have slightly below-average activity." They predict a total of 11 named storms and four hurricanes.
May 25, 2017 - The National Oceanic and Atmospheric Administration (NOAA) forecasts a 45% chance for an above-normal season, predicting that there is a 70% chance of having 11 to 17 named storms, of which five to nine could develop into hurricanes, including two to four major hurricanes (categories 3-5).
2017 Atlantic Storm Names:
Tropical Storm ArleneApril 20, 2017 - Tropical Storm Arlene forms in the central Atlantic Ocean. According to the National Hurricane Center, April tropical storms are rare, and this is only the second one (the first was 2003's Tropical Storm Ana) since the use of satellite.
April 21, 2017 - Arlene moves southwest and south until it dissipates.
Tropical Storm BretJune 19, 2017 - Tropical Storm Bret forms about 125 miles southeast of Trinidad.
June 20, 2017 - Weakens into a tropical wave.
Tropical Storm CindyJune 20, 2017 - Tropical Storm Cindy forms in the Gulf of Mexico, about 265 miles south of Morgan City, Louisiana.
June 22, 2017 - Makes landfall just south of Lake Charles, Louisiana. Later weakens to a tropical depression.
Tropical Storm Don
July 17, 2017 - Tropical Storm Don forms about 485 miles east-southeast of Barbados.
TM & © 2017 Cable News Network, Inc., a Time Warner Company. All rights reserved.