NWS Tsunami Products
(Effective April 3, 2017)
Tsunami messages are National Weather Service (NWS) products. NWS products are described by both a World Meteorological Organization (WMO) Header and an Advanced Weather Interactive Processing System (AWIPS) ID. The following table describes the products issued by the two NWS Tsunami Warning Centers (click on the product for an example).
  • WEPA41 and WEXX20 are segmented Warning, Watch, and Advisory products which contain Universal Geographic Code and NWS Valid Time Event Codes.
  • WEHW40, WEZS40, WEGM40, WEAK51, WECA40 and WEXX30 are Warning, Watch, and Advisory products which are provided in a bulleted format intended for easy reading.
  • WEAK61, WEAK63, WECA50, WECA32, WEXX40 and WEXX42 have the same content as WEAK51, WEAK53, WECA40, WECA42, WEXX30 and WEXX32, but in Spanish.
  • WEPA40 and WECA41 are intended for international authorities and users. While these products do mention U.S. states and territories, they do not reflect additional modeling and analysis conducted by the Pacific Tsunami Warning Center to fine tune the forecasts and alert levels for these coasts. U.S. audiences should refer to the products specific to their region as noted in the table below.

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Region WMO Header NWS AWIPS ID TWC Explanations
Alaska,
British Columbia,
U.S. West Coast		 Example: WEPA41 PAAQ
Example: WEPA41 PAAQ
Example: WEPA41 PAAQ
TSUWCA NTWC Segmented Tsunami Warnings, Watches, and Advisories

Example: WEAK51 PAAQ
Example: WEAK51 PAAQ
Example: WEAK51 PAAQ
TSUAK1 NTWC Tsunami Warnings, Watches, and Advisories

Example: WEAK61 PAAQ
Example: WEAK61 PAAQ
Example: WEAK61 PAAQ
TSUSPN NTWC Spanish Tsunami Warnings, Watches, and Advisories

Example: WEAK53 PAAQ
TIBAK1 NTWC Tsunami Information Statements

Example: WEAK63 PAAQ
TIBSPN NTWC Spanish Tsunami Information Statements

Hawaii Example: WEHW40 PHEB
TSUHWX PTWC Tsunami Warnings, Watches, and Advisories

Example: WEHW42 PHEB
TIBHWX PTWC Tsunami Information Statements

American Samoa Example: WEZS40 PHEB
TSUPPG PTWC Tsunami Warnings, Watches, and Advisories

Example: WEZS42 PHEB
TIBPPG PTWC Tsunami Information Statements

Guam,
CNMI		 Example: WEGM40 PHEB
TSUGUM PTWC Tsunami Warnings, Watches, and Advisories

Example: WEGM42 PHEB
TIBGUM PTWC Tsunami Information Statements

Non U.S. Pacific Example: WEPA40 PHEB
TSUPAC PTWC Tsunami Threat Messages

Example: WEPA42 PHEB
TIBPAC PTWC Tsunami Information Statements

U.S. Atlantic,
Gulf of Mexico,
Canada		 Example: WEXX20 PAAQ
Example: WEXX20 PAAQ
Example: WEXX20 PAAQ
TSUAT1 NTWC Segmented Tsunami Warnings, Watches, and Advisories

Example: WEXX30 PAAQ
Example: WEXX30 PAAQ
Example: WEXX30 PAAQ
TSUATE NTWC Tsunami Warnings, Watches, and Advisories

Example: WEXX40 PAAQ
Example: WEXX40 PAAQ
Example: WEXX40 PAAQ
TSUSPA NTWC Spanish Tsunami Warnings, Watches, and Advisories

Example: WEXX32 PAAQ
TIBATE NTWC Tsunami Information Statements

Example: WEXX42 PAAQ
TIBSPA NTWC Spanish Tsunami Information Statements

Puerto Rico,
Virgin Islands		 Example: WECA40 PHEB
Example: WECA40 PHEB
Example: WECA40 PHEB
TSUCAR PTWC Tsunami Warnings, Watches, and Advisories

Example: WECA50 PHEB
Example: WECA50 PHEB
Example: WECA50 PHEB
TSUSP1 PTWC Spanish Tsunami Warnings, Watches, and Advisories

Example: WECA60 PHEB
Example: WECA60 PHEB
Example: WECA60 PHEB
TSUCA1 PTWC Segmented Tsunami Warnings, Watches, and Advisories

Example: WECA42 PHEB
TIBCAR PTWC Tsunami Information Statements

Example: WECA52 PHEB
TIBSP1 PTWC Spanish Tsunami Information Statements

Non U.S. Caribbean Example: WECA41 PHEB
TSUCAX PTWC Tsunami Threat Messages

Example: WECA43 PHEB
TIBCAX PTWC Tsunami Information Statements

Test Example: NTXX98 PHEB
TSTMSG PTWC Test Messages

Example: NTXX98 PAAQ
TSTMSG NTWC Test Messages