Tropical Storm Bertha Moves Toward Texas After Louisiana Landfall
Tropical Storm Bertha made landfall in St. Bernard Parish, Louisiana, on Wednesday afternoon and is now tracking west along the northern Gulf Coast toward Texas.
At landfall, Bertha had maximum sustained winds of around 45 mph. Little change in strength is expected before the system reaches the upper Texas coast later Friday, after which it should weaken quickly and dissipate inland over Texas.
The main impact is shifting west with the storm. Additional rainfall of 2 to 4 inches is possible along the Texas Gulf Coast and South Texas through Friday night, with isolated totals up to around 6 inches. Localized flash flooding remains possible, especially in urban and poor-drainage areas.
Coastal flooding also remains a concern along parts of the northern Gulf Coast. Water levels could rise 1 to 3 feet above normally dry ground from the Alabama-Mississippi border west to Port Bolivar, Texas, including Lake Pontchartrain. Swells from Bertha are expected to continue spreading westward along the northern Gulf Coast, keeping surf and rip current conditions hazardous through the next several days.
Actionable Analytics on EigenPrism
Post-Event
Windstorm Dataset
All EigenPrism® users can assess the impact of Tropical Storm Bertha using the following report template:
The report template consists of the following wind footprints: Past max winds by Adiabat and Past wind swath by Hurricane Mapping. The pages auto-update with the latest available data.
Forecast
Flood & Windstorm Dataset
All EigenPrism® users can assess the forecast of the tropical storm using the following report template:
This report template includes the following wind and flood footprints: Wind arrival times and Storm surge potential from NOAA, Wind swaths and Tropical Storm Strength Wind probabilities from Hurricane Mapping, 3-day excessive rainfall potential from NWS, and 5-Day Flood potential from Adiabat. The pages auto-update with the latest available data.
Jul 21 | Tropical Storm Bertha Targets Gulf Coast With Rain, Wind and Surge
Tropical Depression Two has strengthened into Tropical Storm Bertha in the Gulf of Mexico. The storm is forecast to bring heavy rain, gusty winds, storm surge, and dangerous beach conditions from the Florida Panhandle toward Alabama, Mississippi, Louisiana, and parts of Texas. Bertha will likely track along the Gulf Coast and make landfall late Wednesday night as a weak tropical storm near southeast Louisiana or southern Mississippi.
The National Hurricane Center has issued a Tropical Storm Watch from the Florida Panhandle to the southeast Louisiana coast, including Panama City and Pensacola in Florida, Mobile in Alabama, and Gulfport in Mississippi.
Bertha could bring 2 to 4 inches of rain from western Florida to the Middle Texas Coast through Friday, with isolated higher totals of up to around 8 inches. This rainfall could lead to flash flooding.
A Storm Surge Watch is also in effect from the Alabama-Florida border to the mouth of the Mississippi River. A possible water rise of 2 to 4 feet could affect the area from Indian Pass, Florida, located about two hours southwest of Tallahassee, to the Chassahowitzka River.
Actionable Analytics on EigenPrism
Forecast
Flood & Windstorm Dataset
All EigenPrism® users can assess the forecast of the tropical storm using the following report template:
This report template includes the following wind and flood footprints: Wind arrival times and Storm surge potential from NOAA, Wind swaths and Tropical Storm Strength Wind probabilities from Hurricane Mapping, 3-day excessive rainfall potential from NWS, 5-day forecast max winds and 5-Day flood potential from Adiabat. The pages auto-update with the latest available data.
Alerts
Users who have alerts set on their exposures for the relevant event sets, like those from Adiabat & Hurricane Mapping, will receive alerts (if the event footprints impact these exposures). To learn more about how to set an alert on a specific event set, check out this help center article. Feel free to contact us at Prism.Support@eigenrisk.com or reach out directly to your Customer Success Manager with any questions or concerns. Our team is here to assist you with setting alerts, understanding report templates, and maximizing the actionable insights available through EigenPrism®.
Jul 20 | Heavy Rainfall Expected From Florida to Texas as Tropical Depression Two Strengthens
Tropical Depression Two has formed in the northeastern Gulf and is expected to strengthen into Tropical Storm Bertha later Monday. As of early Monday, the system was centered about 120 miles south of Panama City, Florida, with maximum sustained winds near 35 mph and higher gusts. It is expected to move slowly along the northern Gulf Coast, bringing periods of heavy rain from western Florida and Alabama toward Mississippi, Louisiana, and parts of Texas through the week.
A Tropical Storm Watch is in effect from the Ochlockonee River in Florida to the Mississippi-Alabama border, including the Alabama Gulf Coast. Heavy rainfall is expected to be the main impact. The system could bring 2 to 4 inches of rain, with locally higher totals around 6 inches, along the Gulf Coast and nearby inland areas from western Florida to the Middle Texas Coast through Friday.
Flash flooding will be possible, especially in urban and poor-drainage areas. Coastal impacts are also possible. Water levels could rise 1 to 3 feet above ground in parts of Florida’s Big Bend, Mobile Bay, and the Alabama coast. Rough surf and dangerous rip currents may spread west along the Gulf Coast through the week.
Actionable Analytics on EigenPrism
Forecast
Flood Dataset
All EigenPrism users can assess the forecast footprints using the following report template:
This report template enables you to assess the forecast footprints based on the data from NWS, and Adiabat. The footprints in the template display the following:
- WPC 3-Day Excessive Rainfall Outlook
- US Flood Outlook
- NA 5-Day & 3-Day Flood Potential
The pages auto-update with the latest available data.
Windstorm Dataset
All EigenPrism® users can assess the forecast of the tropical storm using the following footprints:
- Tropical-Storm-Force (>34 kt) Wind Arrival Times by NOAA as of Jul 20, 2026
- Depression Two Forecast Wind Swath – Advisory 04 as of Jul 20, 2026
- Tropical-Storm-Force (>34 kt) Wind Probabilities for the 120 hours as of Jul 20, 2026
Alerts
Users who have alerts set on their exposures for the relevant event sets, like those from Adiabat & Hurricane Mapping, will receive alerts (if the event footprints impact these exposures). To learn more about how to set an alert on a specific event set, check out this help center article. Feel free to contact us at Prism.Support@eigenrisk.com or reach out directly to your Customer Success Manager with any questions or concerns. Our team is here to assist you with setting alerts, understanding report templates, and maximizing the actionable insights available through EigenPrism®.
Not an EigenPrism User? Here’s a Quick Way to Check ZIP-Level Impact
For underwriters, brokers, and portfolio managers who need fast visibility into impacted ZIP codes, we’ve built a tool called ZIP Response on our website. It’s a free, no-login tool that highlights the top ZIP codes that are most impacted during active events, such as hurricanes, floods, wildfires, and severe storms. You can request the complete ZIP list by simply filling out a short form and get it delivered straight to your inbox. If you’d like to explore the impacted ZIP codes for this event, visit ZIP Response. Or Contact us, to have more info on this.
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