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NOUS41 KWBC 191555
PNSWSH
PUBLIC INFORMATION STATEMENT 26-73
NATIONAL WEATHER SERVICE HEADQUARTERS SILVER SPRING MD
1155 AM EDT MON OCT 19 2026
TO: SUBSCRIBERS:
-NOAA WEATHER WIRE SERVICE
-EMERGENCY MANAGERS WEATHER INFORMATION NETWORK
-NOAAPORT
OTHER NWS PARTNERS, USERS AND EMPLOYEES
FROM: JAMES GRIDLEY, DIRECTOR OF TSUNAMI OPERATIONS AND RESEARCH
NCEP OCEAN AND TSUNAMI CENTER
SUBJECT: NOTICE OF COORDINATED ANNUAL TSUNAMI EXERCISE FOR THE
ATLANTIC 2026 (LANTEX26) NOV 4, 2026
THE NATIONAL WEATHER SERVICE’S (NWS) NATIONAL TSUNAMI WARNING
CENTER (NTWC), IN PALMER, AK, WILL CONDUCT THE 2026 EDITION OF ITS
ANNUAL NATIONAL EXERCISE FOR THE ATLANTIC, LANTEX26, ON WEDNESDAY,
NOVEMBER 4, 2026. THE EXERCISE WILL BEGIN AT 12:30 PM EST / 11:30
AM CST / 9:30 AM PST / 08:30 AM AKST, ENDING AT APPROXIMATELY 3:15
PM EST / 2:15 PM CST / 12:15 PST / 11:15 AM AKST. THE ANNUAL
LANTEX EXERCISE IS DESIGNED TO ENHANCE TSUNAMI PREPAREDNESS ACROSS
THE ATLANTIC COAST WITH WIDESPREAD PARTICIPATION FROM INTERAGENCY
PARTNERS TO ENSURE READINESS OF THE OPERATIONAL SYSTEMS AND
PLATFORMS USED BY NTWC AND THE END-TO-END DISSEMINATION OF NTWC
MESSAGING AND COMMUNICATIONS.
ALL MESSAGING, INCLUDING TEXT PRODUCTS AND GRAPHICAL INFORMATION
DISSEMINATED THROUGHOUT LANTEX26 WILL BE LABELED WITH EXERCISE AND
SHOULD NOT BE DISSEMINATED BEYOND THE EXERCISE SPACE. NONE OF THIS
OUTPUT WILL BE POSTED TO TSUNAMI.GOV, NATIONAL WARNING SYSTEM
(NAWAS), NOR WILL ANY OF THE MOCK ALERT PRODUCTS BE DISSEMINATED
THROUGH TRADITIONAL CHANNELS. INTERAGENCY FEDERAL, STATE,
PROVINCIAL, AND COMMUNITY PARTNERS/PARTICIPANTS MAY CHOOSE TO
EXERCISE THEIR OWN RESPONSE SYSTEMS AND COMMUNICATIONS BASED ON
THIS MOCK SCENARIO AND EXERCISE SPECIFICS FOR THEIR AREAS OF
RESPONSIBILITY.
EXERCISE-BASED MESSAGES, PARTNER COMMUNICATIONS, IN-EVENT
BRIEFINGS, AND REAL-TIME WEB-BASED CHAT WILL BE FACILITATED THROUGH
OFFICIAL NWS EMAIL ACCOUNTS, DEDICATED PARTNER WEB PORTAL CHAT,
PHONE AND VIDEO CONFERENCING.
IN THE EVENT OF A SIGNIFICANT EARTHQUAKE OR ANOMALOUS OCEAN WATER
LEVEL EVENT, NTWC WILL COMMUNICATE AN IMMEDIATE END TO THE EXERCISE
AND BEGIN A TSUNAMI EVENT RESPONSE.
ADDITIONAL INFORMATION ON LANTEX26, INCLUDING THE PARTICIPANT
HANDBOOK AND OTHER MATERIALS FOR REGISTERED PARTICIPANTS AND FOR
PREVIOUS EXERCISES MAY BE FOUND AT: TSUNAMI.GOV/?PAGE=EXERCISES.
DAVE SNIDER
TSUNAMI WARNING COORDINATOR NATIONAL TSUNAMI WARNING CENTER
DAVID.SNIDER@NOAA.GOV
OR
SUMMER OHLENDORF
SCIENCE AND OPERATIONS OFFICER NATIONAL TSUNAMI WARNING CENTER
SUMMER.OHLENDORF@NOAA.GOV
NATIONAL PUBLIC INFORMATION STATEMENTS ARE ONLINE AT:
HTTPS://WWW.WEATHER.GOV/NOTIFICATION/
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