Summary (tl;dr)

A tropical depression in the Gulf of Mexico is forecast to develop into Tropical Storm Bertha, the second named storm of the 2026 Atlantic hurricane season, prompting tropical storm watches and warnings across the northern Gulf Coast due to anticipated heavy rainfall, flash flooding, and storm surge.

Essential Background

The name "Bertha" has been used for previous Atlantic tropical cyclones, including systems in 1957, 1996, and 2020. Notably, Tropical Storm Bertha in 2020 rapidly formed off the southeastern U.S. coast and quickly made landfall in South Carolina, bringing heavy rainfall and minor flooding. The 2026 Atlantic hurricane season had only seen one named system, Tropical Storm Arthur, before the current developing system.

The Full Story

As of July 20, 2026, a tropical depression in the Gulf of Mexico is expected to strengthen into Tropical Storm Bertha later today or tonight, becoming the second named storm of the current Atlantic hurricane season. The system, currently located west of Florida, is projected to move slowly northward or northwestward before turning west-northwest or west, tracking near or along the northern Gulf Coast over the next several days. Tropical storm watches have been issued for the Florida Panhandle, stretching from the Ochlockonee River to the Alabama-Mississippi border, and extending to the southeast Louisiana coast, encompassing cities like Panama City, Pensacola, Mobile, and Gulfport. Gradual strengthening is anticipated, with tropical storm conditions possibly reaching the watch areas by late Monday into Tuesday morning. Forecasters are warning of significant rainfall of 2 to 4 inches, with isolated areas potentially receiving up to 6 inches, across the eastern and central Gulf Coast from western Florida to the middle Texas coast, which could lead to flash flooding. Additionally, a storm surge of 1 to 3 feet is possible along the Florida coast from Indian Pass to Chassahowitzka, the entire Alabama coast, and Mobile Bay. Life-threatening surf and rip current conditions are also expected along the coast due to swells.

Why It Matters

The impending formation and projected path of Tropical Storm Bertha are generating widespread concern and interest across the northern Gulf Coast. The threat of heavy rainfall and potential flash flooding poses a significant risk to property and public safety, while the forecasted storm surge could lead to coastal inundation. The slow movement of the system increases the likelihood of prolonged heavy rain, which can exacerbate flooding risks. The issuance of tropical storm watches underscores the urgency for residents and businesses in the affected regions to monitor forecasts, finalize preparations, and be ready for potential disruptions.

Geographic Location

• Gulf of Mexico (formation of Tropical Depression Two, expected to become Tropical Storm Bertha)
• Florida Panhandle, Florida, United States (under tropical storm watch, expected heavy rainfall and potential storm surge)
• Indian Pass, Florida, United States (eastern boundary of potential storm surge)
• Chassahowitzka River, Florida, United States (western boundary of potential storm surge)
• Alabama coast, Alabama, United States (under tropical storm watch, expected heavy rainfall and potential storm surge)
• Mobile Bay, Alabama, United States (potential storm surge)
• Mississippi coast, Mississippi, United States (under tropical storm watch, expected heavy rainfall)
• Southeastern Louisiana coast, Louisiana, United States (under tropical storm watch, expected heavy rainfall)
• New Orleans, Orleans Parish, Louisiana, United States (system track near or south of the city, potential tropical storm conditions)
• Houston, Harris County, Texas, United States (potential for tropical storm conditions)
• Middle Texas coast, Texas, United States (expected heavy rainfall)