Tag Archives: Atlantic Hurricane Season

Atlantic Hurricane Season Starts

The Atlantic hurricane season officially started on June 1, 2026.  The hurricane season began quietly.  No tropical depressions, tropical storms or hurricanes were present over the Atlantic Ocean, the Caribbean Sea, or the Gulf of Mexico.  No tropical cyclones are expected to form over the Atlantic Ocean during the next few days.  Whenever a tropical storm does form over the Atlantic Ocean, the first name on the list will be Arthur.

Fewer tropical storms and hurricanes are expected to form over the Atlantic Ocean this year.  A strong El Niño pattern is expected to develop over the Equatorial Pacific Ocean during the next few months.  Much warmer than normal Sea Surface Temperatures (SSTs) are expected to be present over the eastern Equatorial Pacific Ocean during the hurricane season.

The warmer Sea Surface Temperatures associated with an El Niño produce more rising motion and convection.  The stronger rising motion begins to move toward the east when it reaches the upper troposphere where it produces stronger westerly winds.  The stronger westerly winds blow over the Caribbean Sea and the western Atlantic Ocean.  Those stronger westerly winds cause more vertical wind shear.  More vertical wind shear makes it more difficult for tropical storms and hurricanes to develop.

New Normals for Atlantic Hurricane Season

The National Oceanic and Atmospheric Administration’s (NOAA) Climate Prediction Center (CPC) announced that new normals have been computed for the Atlantic Hurricane season. CPC will now use normals based on the averages for the thirty year period from 1991-2020. The new normal number of named storms for the Atlantic basin is 14. The new normal for hurricanes is 7 and the normal for major hurricanes is 3.

Climatologists routinely calculate new normals based on the most recent 30 year period at the end of each decade. The previous normals for the Atlantic basin were based on the period from 1981 to 2010. The previous normal for the number of named storms was 12. The previous normal for the number of hurricanes was 6 and the previous normal for the number of major hurricanes was 3. The increases in the number of named storms and hurricanes reflect a more active period that began in 1995.