Baton Rouge weather history: Hurricane Delta fifth anniversary

BATON ROUGE, La. (Louisiana First) — The Atlantic Hurricane season of 2025 has been good to us in Louisiana, reporting zero U.S. landfalling hurricanes thus far. Unfortunately, that wasn’t the case in 2020. The year saw 30 named storms, 11 of which made landfall along the U.S. coastline, 5 of those named storms making landfall in Louisiana: Tropical Storm Cristobal, Hurricane Laura, Hurricane Delta, Hurricane Marco, and Hurricane Zeta.

Overall, 2020 was a very active year for Louisiana in regards to hurricane season. In August, Hurricanes Laura and Marco devastated the southwestern coast almost simultaneously. Just six weeks later, Hurricane Delta hit the coastline, followed by Hurricane Zeta just two weeks after Delta.

This week is the fifth anniversary of Hurricane Delta making landfall in Creole, Louisiana, with wind speeds of 100mph.

Delta’s Origins:

In the latter half of hurricane season, tropical waves begin to develop over the Caribbean instead of the Main Development Region (MDR) of the Atlantic. Delta was no different in 2020. Delta began as a tropical wave moving through the Caribbean, which led to the formation of Tropical Depression 26 on Oct. 4. Later that day, it received tropical storm status, officially getting the name Tropical Storm Delta.

On Oct. 5, Delta underwent strong rapid intensification and became a staggering Category 4 hurricane with wind speeds of 140 mph by Oct. 6. Delta was able to undergo such rapid intensification because water temperatures in the Caribbean were well above average and the storm had no wind shear to knock it over, making the perfect environment for the storm to blow up.

After reaching Category 4 status, it moved over the Yucatan Peninsula, which weakened it to a Category 2. After leaving the Yucatan Peninsula, it moved into the warm water of the Gulf, where it underwent a second round of rapid intensification, once again reaching Category 4 status.

Unfortunately for Louisiana residents, they were directly in the cone of uncertainty. On the bright side, there was an ample amount of wind shear in the northern Gulf that effectively ripped the storm to shreds, weakening it to a Category 2 with wind speeds of 110 mph just before landfall.

How did Hurricane Delta affect Baton Rouge?

In East Baton Rouge Parish, residents encountered tropical storm-force winds, which knocked out the power for more than 75,000 homes. These winds also knocked over trees and snapped power poles that left 140 roads impassable. Heavy rain before and during the storm left a lot of flooding along the Comite River, which overtook a few homes. At one point along Highway 64 in Zachary, 10.2 inches of rain fell in the span of two days. The Baton Rouge airport also measured 9.06 inches of rain in this timeframe.

West Baton Rouge Parish saw similar effects. Peak wind gusts topped out in the 60-70 mph range, causing three homes to suffer structural damage. During the peak impacts of the storm, around 50% of the parish was without power.

Pointe Coupee Parish was the only other parish near Baton Rouge that suffered major impacts as well. The National Weather Service noted that the highest recorded wind gust in the parish was 60mph, but there were likely higher gusts around the parish that went unrecorded. At the peak of the storm’s devastation, 80% of the parish was without power.

In conclusion, Baton Rouge escaped the worst of Hurricane Delta’s wrath due to the increased wind shear in the northern Gulf. Without that wind shear, residents would have likely seen another major hurricane impact just one month after Hurricane Laura.

Latest News