At a Glance

Delta will likely be the 10th tropical storm or hurricane to landfall in the mainland U.S.That would break a 1916 record for most mainland landfalls in a season.Delta would be the fifth hurricane of those 10 U.S. landfalls.Much of the East and Gulf coasts have been covered by a warning once this season.

Hurricane Delta is likely to be the 10th named storm to landfall in the mainland United States during the 2020 Atlantic hurricane season, breaking a record that has stood for more than a century.

Delta is expected to hit the northern Gulf Coast Friday into early Saturday. When it does, the mainland U.S. will have seen 10 landfalls from tropical storms and hurricanes this year since the barrage began in late May.

That would break the 1916 record of nine mainland U.S. landfalls , according to Phil Klotzbach, a tropical scientist at Colorado State University.

Delta's Projected Path

Four of the landfalls so far in 2020 have been from hurricanes, including Hanna, Isaias, Laura and Sally. Delta is currently forecast to be the fifth hurricane landfall of this year.

Five U.S. hurricane landfalls would be more than double the average of one to two hurricane landfalls per year, according to NOAA's .

The sequence of nine tropical storms or hurricanes to landfall in the mainland U.S. through Sept. 21, along with the maximum extent of tropical storm (red) and hurricane (purple) warnings for each, from Bertha to Beta. (Note: Marco prompted a hurricane warning, but strong wind shear weakened it to a tropical storm as it neared the Louisiana coast.)

(Data: NOAA/NHC)

Of the 10 landfalls, Delta is likely to be the seventh to occur along the Gulf Coast from Alabama to South Texas. Three of those – Cristobal, Marco and Laura – were in Louisiana, and Delta has a chance to join them as the state's fourth.

Much of the U.S. East and Gulf coasts have already been in at least one tropical storm warning in the 2020 hurricane season from the first nine landfalling storms. That even includes coastal New England as far north as Downeast Maine, which was briefly in a tropical storm warning from Isaias.

While it didn't officially make landfall, the season's first storm, Tropical Storm Arthur, also prompted tropical storm warnings in eastern North Carolina as it brushed by in mid-May.

Tracks of the nine U.S. landfalls so far in 2020, and areas that have been in hurricane (purple) and tropical storm (red) warnings so far.

(Data: NOAA/NHC)

Only Florida's Upper Keys and the west coast of Florida, east of Apalachicola, has yet to be placed under a tropical storm or hurricane warning so far this season.

When considering warnings issued inland, even parts of western Maine have been in a tropical storm warning this season before the west coast of Florida.

After Oct. 4, an average hurricane season delivers another two named storms. So it's possible we're not done after Delta, as far as U.S. impact is concerned.

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