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Coastal Flood Advisory — St. John The Baptist, LA, Southwestern St. Tammany, LA, Lower Tangipahoa, LA, Coastal Jefferson, LA, Lower Lafourche, LA, Lower Terrebonne, LA, Upper St. Charles, LA
Issued
10:12 AM CDT · Tue, Jul 21 2026
Expires
4:00 AM CDT · Thu, Jul 23 2026
Issuing Office
NWS KLIX

Affected Areas

St. John The Baptist, LA Southwestern St. Tammany, LA Lower Tangipahoa, LA Coastal Jefferson, LA Lower Lafourche, LA Lower Terrebonne, LA Upper St. Charles, LA

Official Bulletin

* WHAT...Minor coastal flooding.

* WHERE...St. John The Baptist, Southwestern St. Tammany, Lower
Tangipahoa, Coastal Jefferson, Lower Lafourche, Lower
Terrebonne and Upper St. Charles Parishes.

* WHEN...Until 4 AM CDT Thursday.

* IMPACTS...Flooding of lots, parks, and roads with only
isolated road closures expected.

* ADDITIONAL DETAILS...Inundation is expected to be 1-3 feet along
the coast in the advised area.

If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.