Louisiana State Wide Update
10:30 am | Tuesday, July 21, 2026
Changes from previous update:
● Storm Surge Watches have been replaced by Coastal Flood Warnings. Coastal Flood Advisories have been issued around
Lakes Pontchartrain/Maurepas, and across the open coast to the Atchafalaya River
● The TS Watch has been upgraded to a TS Warning for coastal Jefferson and Lafourche Parishes. The watch has also been
expanded westward to the Vermillion/Cameron Parish Line
Key Message:
● Tropical Storm Bertha is forecast to bring minor to moderate storm surge flooding, and tropical storm winds (mainly in gusts) to
coastal portions of SE LA Wed through Thu morning. There is potential for a few storms to also produce locally heavy rainfall
leading to isolated flooding.
● Mainly minor impacts will be possible across SW LA Thursday
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