Tropical Cyclone Naming

Also known as: PAGASA tropical cyclone naming (the domestic scheme) · Typhoon Committee naming scheme / ESCAP-WMO list (the international scheme) · Storm naming · Bagyo names (popular shorthand for the Filipino local names)

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Definition

Tropical cyclone naming is the practice of assigning short, familiar names to individual tropical cyclones so that warnings, news reports, insurance claims, and historical records can identify one storm unambiguously. Two independent naming systems operate on the storms that affect the Philippines. Internationally, cyclones in the western North Pacific and South China Sea are named by the Japan Meteorological Agency’s RSMC Tokyo — Typhoon Center once they reach tropical-storm strength, using lists adopted by the ESCAP/WMO Typhoon Committee: the scheme, in force since January 1, 2000, draws on 140 names contributed by 14 member economies — from Cambodia and China to the United States and Viet Nam, the Philippines among them — arranged in five lists used sequentially without restarting each year. (Wikipedia — Tropical cyclone naming, WMO — western North Pacific names, PAGASA — Northwest Pacific Basin Names)

Domestically, PAGASA has operated its own naming scheme since 1963: any system that enters or develops within the Philippine Area of Responsibility at tropical-depression strength receives a Filipino name from four rotating lists of 25 names, with names drawn from an annually published auxiliary list — replaced by a reserved list under the 2021 revision — when a season overflows. The practical effect is that a storm approaching the country usually carries two names at once: the local name used in Philippine warnings and the international name used abroad, as when the 2013 storm the world recorded as Typhoon Haiyan was known to Filipinos as Yolanda. Both systems retire the names of catastrophic storms; this entry centralizes the mechanics, cross-referencing this wiki’s entries on PAGASA, Typhoon, Tropical Cyclone, the Japan Meteorological Agency, and the Philippine Area of Responsibility. (Wikipedia — Tropical cyclone naming, Hong Kong Observatory — Tropical Cyclone Names)

Identities

Source Type	Identity
Wikipedia	Tropical cyclone naming
Wikidata	Tropical cyclone naming (Q558163)
DBpedia	Tropical cyclone naming
ProductOntology	N/A
Wiktionary	N/A
Library of Congress Subject Headings (LCSH)	N/A
MeSH	N/A
NCBI Taxonomy	N/A
AGROVOC	N/A
Google Scholar	tropical cyclone naming PAGASA Typhoon Committee Haiyan Yolanda retired names Philippines
ConceptNet	N/A
OpenCyc	N/A

Also Known As

PAGASA tropical cyclone naming (the domestic scheme)
Typhoon Committee naming scheme / ESCAP-WMO list (the international scheme)
Storm naming
Bagyo names (popular shorthand for the Filipino local names)

Examples and Analogies

One storm, two passports: because PAGASA assigns a local name while the Japan Meteorological Agency assigns the international one, a single typhoon travels under two identities — Yolanda to Philippine audiences, Haiyan to the rest of the world; Ondoy and Ketsana in 2009; Pablo and Bopha in 2012. (Wikipedia — Tropical cyclone naming)
A catalogue built by committee: the international list works like a co-authored anthology — each of the 14 Typhoon Committee members contributed 10 names (from the Philippines, among others, Maliksi, Cimaron, Hagupit, and Talim across the five lists), and the names run in a fixed order that simply continues from one year into the next. (Wikipedia — Tropical cyclone naming, WMO — western North Pacific names)
Names that retire like jersey numbers: a name is withdrawn after a catastrophic storm so it is never reused — internationally Haiyan was retired in 2014 and replaced by Bailu; domestically Yolanda was replaced by the unused Yasmin, just as a retiring athlete’s number leaves the roster. (Wikipedia — List of retired Pacific typhoon names, Wikipedia — List of retired Philippine typhoon names)
Two retirement tracks, one storm: Typhoon Fengshen of 2008 shows the systems judging independently — PAGASA retired its local name Frank after the storm killed 557 people and caused ₱13.5 billion in damage, yet the Typhoon Committee retired no names at all after the 2007 and 2008 seasons, leaving Fengshen in circulation. (Wikipedia — List of retired Philippine typhoon names, Wikipedia — List of retired Pacific typhoon names)

Usage Scenarios

1. Issuing and Reading Public Warnings

PAGASA’s cyclone bulletins and wind signals refer to storms by their local names, assigned as soon as a system reaches tropical-depression status inside the Philippine Area of Responsibility — earlier than the international tropical-storm threshold — so households hear a familiar name rather than a coordinate. (Wikipedia — Tropical cyclone naming)

2. Coordinating International Forecasts, Shipping, and Aviation

Outside the PAR, the same storm is tracked by its international name and a four-digit identification number assigned by RSMC Tokyo, the designation used in members’ bulletins for the international community and in messages to aviation and shipping — the regional role described in this wiki’s entry on the Japan Meteorological Agency. (WMO — western North Pacific names, PAGASA — Northwest Pacific Basin Names)

3. Record-Keeping, Reporting, and Research

Because Philippine government reports use local names while global datasets use international ones, disaster historians, insurers, and journalists routinely record both — the convention behind the double-barrelled forms “Yolanda (Haiyan)” and “Ondoy (Ketsana)” in Philippine reporting. (Wikipedia — List of retired Philippine typhoon names)

4. Retiring and Replacing Names After Catastrophe

After each season, names of destructive storms are formally withdrawn: PAGASA retires a local name when its storm causes at least ₱1 billion in damage or at least 300 deaths, while Typhoon Committee members may request withdrawal of an international name, with the replacement supplied by the contributing member. (Wikipedia — List of retired Philippine typhoon names, Wikipedia — Tropical cyclone naming)

Strategies

Name storms at the depression stage, in the local language: PAGASA’s domestic names make warnings personal and intelligible even for systems too weak to earn an international name. (Wikipedia — Tropical cyclone naming)
Pool names regionally: the Typhoon Committee scheme distributes authorship across 14 economies, so no single country’s list dominates the region’s warnings, and the Philippines itself contributes names to the pool. (PAGASA — Northwest Pacific Basin Names, WMO — western North Pacific names)
Rotate on a fixed cycle, with overflow lists ready: the four PAGASA lists recur every four years and are backed by annually announced auxiliary names — a reserved list since 2021 — while the five international lists run continuously, keeping the catalogue predictable without making names feel immediately recycled. (Wikipedia — Tropical cyclone naming, Wikipedia — List of retired Philippine typhoon names)
Retire catastrophic names: the ₱1-billion-or-300-death domestic rule and the Typhoon Committee’s retirement requests remove names whose reuse would reopen fresh wounds. (Wikipedia — List of retired Philippine typhoon names)

Security and Safety Measures

Unambiguous identification for warnings: distinct local and international names let PAGASA warn domestic audiences while regional centers coordinate on the same storm without confusing the two streams of bulletins. (Wikipedia — Tropical cyclone naming)
Standardized international identifiers: pairing each international name with a four-digit number from RSMC Tokyo gives shipping and aviation a checkable identifier even when names sound similar. (WMO — western North Pacific names)
Sequential, non-restarting use: because the 140-name sequence continues across years, forecasters avoid reusing a name too soon after a memorable disaster. (Wikipedia — Tropical cyclone naming)
Retirement as a safeguard for communities: withdrawing the names of deadly storms prevents renewed trauma and keeps historical references unambiguous, as with Reming, Frank, Ondoy, Pablo, and Yolanda. (Wikipedia — List of retired Philippine typhoon names)

Historical Context

Before 2000, western North Pacific cyclones were named by United States military forecasters, using feminine English names until 1978 and alternating men’s and women’s names thereafter. The Typhoon Committee, at its 31st session held in the Philippines on December 1–7, 1998, approved the present scheme of Asian names contributed by the members themselves, implemented at the start of the new millennium on January 1, 2000; unlike the personal names they replaced, most of the new names are flowers, animals, birds, trees, foods, or adjectives drawn from the region’s languages. PAGASA’s separate local practice is older still, running since 1963, with its lists revised in 1979, 1985, 2001 (after the 1998–99 “Name a Bagyo Contest”), 2005, and 2021. (Hong Kong Observatory — Tropical Cyclone Names, PAGASA — Northwest Pacific Basin Names, Wikipedia — List of retired Philippine typhoon names)

The retirement record tracks the country’s worst disasters. Reming (Durian, 2006; 734 dead, ₱3.48 billion) was retired alongside its international name, which the Typhoon Committee replaced with Mangkhut at its 39th session; Frank (Fengshen, 2008) and Ondoy (Ketsana, 2009; 464 dead, ₱11 billion) lost their local names, while only Ketsana was withdrawn internationally, replaced by Champi at the 42nd session in 2010; Pablo (Bopha, 2012; 1,067 dead, ₱36.9 billion) and its international name were both retired, Ampil succeeding Bopha at the 45th session; and Yolanda (Haiyan, 2013; more than 6,300 dead, ₱95.5 billion) was retired on both tracks, with Bailu replacing Haiyan at the 46th session in 2014. (Wikipedia — List of retired Philippine typhoon names, Wikipedia — List of retired Pacific typhoon names)

Challenges and Controversies

Two Names, One Storm

The dual system means the deadliest storms live in two ledgers: Philippine relief reports and memorials speak of Yolanda and Ondoy, while international databases index the same events as Haiyan and Ketsana. The arrangement is defended as necessary for domestic warning clarity, but it complicates cross-referencing in research, insurance, and historical writing unless both names are recorded. (Wikipedia — List of retired Philippine typhoon names, Wikipedia — Tropical cyclone naming)

Naming Thresholds and the Visibility of Weak Storms

PAGASA names systems at tropical-depression strength, while international naming requires tropical-storm winds of at least 65 km/h — a divergence reflecting the Philippine experience that even weak depressions can flood and kill. Critics of any tightening of the domestic threshold argue that a storm without a local name risks being a storm the public ignores. (Wikipedia — Tropical cyclone naming)

Retirement Criteria and Vetoed Names

Retirement is mechanical at home but political abroad: PAGASA’s ₱1-billion or 300-death rule turns Office of Civil Defense damage tallies into naming decisions, while in the Typhoon Committee any single member’s objection suffices to block a name, and members request withdrawal when a storm causes extensive destruction. Names have also been removed for reasons beyond damage — PAGASA dropped Gloria (2005) and Nonoy (2015) for their association with sitting presidents — and disputed casualty figures ripple into the record on which retirement rests. (Wikipedia — List of retired Philippine typhoon names, Wikipedia — List of retired Pacific typhoon names, Wikipedia — Tropical cyclone naming)