TEST Tsunami Warning Issued for Gulf and Atlantic Coasts
A TEST Tsunami Warning issued June 24 blanketed coastal zones across more than a dozen states from Texas to Virginia — here’s what it covered.
ATLANTA, GEORGIA — The National Weather Service issued a TEST Tsunami Warning on June 24, 2026, at 12:30 p.m. EDT, covering various coastal zones along the Gulf of Mexico and Atlantic seaboard, according to the NWS National Tsunami Warning Center. The warning was scheduled to expire at 1:30 p.m. EDT the same day.
The alert was explicitly designated as a TEST message and does not indicate an actual tsunami threat or emergency. Residents in the affected zones were not in danger from a real tsunami event.
Affected Coastal Zones
The TEST warning covered a list of marine and coastal zones spanning multiple states, including Texas, Louisiana, Mississippi, Alabama, Florida, Georgia, South Carolina, North Carolina, Virginia, and along the Atlantic coast. Specific zone codes included Gulf coast areas such as GMZ130, GMZ132, GMZ135, GMZ150, GMZ155, and many additional Gulf and Atlantic marine zones.
Atlantic coastal zones listed in the alert included ANZ series zones covering waters from the mid-Atlantic through the Southeast, as well as AMZ zones covering Atlantic marine areas. Georgia-specific zones included GAZ153, GAZ154, GAZ165, GAZ166, GAZ217, GAZ219, GAZ239, and GAZ241, according to the NWS alert.
Florida zones covered in the alert included FLZ201 through FLZ206, FLZ008, FLZ010, FLZ012, FLZ014, FLZ108, FLZ112 through FLZ118, and numerous additional Florida coastal and inland zones. South Carolina zones listed were SCZ148 through SCZ152, SCZ054, and SCZ056.
Multi-State Scope of the Alert
North Carolina zones in the alert included NCZ106, NCZ108, NCZ110, NCZ044 through NCZ047, NCZ080, NCZ081, NCZ092 through NCZ095, NCZ098, NCZ103, NCZ104, NCZ193 through NCZ199, NCZ203 through NCZ205, NCZ015 through NCZ017, NCZ030 through NCZ032, and NCZ102. Virginia zones covered were VAZ084 through VAZ086, VAZ097 through VAZ099, VAZ523 through VAZ525, and VAZ528.
Texas zones included in the TEST warning were TXZ251, TXZ351, TXZ354, TXZ355, TXZ451, TXZ454, TXZ455, TXZ234, TXZ242 through TXZ247, TXZ342 through TXZ347, TXZ442, TXZ443, TXZ447, TXZ214, TXZ236 through TXZ238, TXZ313, TXZ335 through TXZ338, TXZ436 through TXZ439, TXZ615, and TXZ616. Louisiana zones listed were LAZ073, LAZ074, LAZ241, LAZ252 through LAZ254, LAZ070, LAZ076, LAZ078, LAZ091, LAZ093, LAZ095, and LAZ097.
Mississippi zones included MSZ086 through MSZ088, and Alabama zones covered were ALZ261 through ALZ266, according to the National Weather Service alert.
Purpose of TEST Warnings
The NWS National Tsunami Warning Center periodically issues TEST alerts to evaluate the readiness of communication systems and emergency notification networks across coastal regions. These exercises help ensure that alerts reach all designated zones quickly and accurately in the event of a real tsunami threat.
No action was required by the public in response to this TEST message. Residents who received the alert through weather radios, mobile devices, or other notification systems were advised that the warning was a drill and not an indication of any actual seismic or oceanic event.
