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 America,
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