Malaysia: Floods - Jan 2021
Flood
How the score is calculated
The score starts at 8. It adds points from recorded affected, deaths, displaced and casualty counts, plus terms found in the story title, event type or status. For each count, only its highest matching band is used.
- Affected people
- 1–999: +5 · 1,000–9,999: +12 · 10,000–99,999: +20 · 100,000–999,999: +28 · 1 million+: +35
- Deaths
- 1–9: +8 · 10–99: +14 · 100–999: +22 · 1,000+: +30
- Displaced people
- 1–9,999: +6 · 10,000–99,999: +12 · 100,000+: +18
- Casualties
- 100 or more: +8
- Story wording
- +10 for terms such as catastrophe, famine, war, conflict, major earthquake, mass casualty or critical. Otherwise, +5 for active, ongoing, emergency, outbreak, cyclone or hurricane.
Score bands: Watch 0–24 · Moderate 25–49 · High 50–74 · Critical 75–100. Scores are capped at 100. Missing or unparseable figures add no points.
This is a rule-based WorldsAid triage indicator, not an official or independently validated classification. It does not account for recency or local context, and it can understate events with incomplete reporting. Check the linked sources.
Historical record
Status: CLOSED · Imported 2026-10-07
Closed for this historical import at the site owner’s request; not a new assessment of current conditions.
In brief
- What happenedSignificant heavy rains which began on 2 January 2021 have caused flooding in five states in Peninsular Malaysia – Johor, Pahang, Kelantan, Selangor and Perak on the morning of 4 January.
- How many affectedAffected persons: 23,776
- What help is neededResponse priorities should be confirmed in the linked source reports as needs change.
What changed
First retained snapshot
No earlier verified snapshot is present in the recovered dataset. This record remains available as the historical baseline.
Situation
Significant heavy rains which began on 2 January 2021 have caused flooding in five states in Peninsular Malaysia – Johor, Pahang, Kelantan, Selangor and Perak on the morning of 4 January. National Disaster Management Administration (NADMA) had estimated that 6,241 families and 23,776 people are affected by the floods (as of 4 January 2021). A total of 303 evacuation centres had been opened. The Malaysian Meteorological Department (MetMalaysia) had issued a bad weather warning on 4 January 2021, cautioning about incessant heavy rain for several areas in Pahang and Johor. In its statement, rain has been forecasted for Pekan and Rompin in Pahang, as well as Mersing in Johor. Districts of Raub, Bentong, Temerloh, Maran, Kuantan and Bera in Pahang as well as Segamat and Kluang in Johor, are expected to experience similar weather until 4 January 2021. Heavy rain is also expected in some areas in Kelantan, Terengganu, Pahang (Cameron Highlands, Lipis and Jerantut) and Johor (Tangkak and Muar). The floods have affected 6 states in 22 districts and 23,776 people. ( IFRC, 5 Jan 2021 )
Linked charities and agencies
WorldsAid verification
A WorldsAid editor reviewed this record against 1 attributed source, cleaned feed formatting and checked the crisis, place and reporting date. 1 human-impact figure was separated from the narrative and dated where the source allowed. Earlier observations remain in the evidence history instead of being silently overwritten.
Verified figures
- Affected persons
- 23,776 retained at 2021-01-07
What we knew when
- WorldsAid record entered the retained historical dataset.
- Last verification represented by this immutable snapshot.
Earlier figures are never replaced by later values; additional observations are retained as new ledger entries.
Provenance
This page renders the last verified WorldsAid cache directly in HTML. It does not treat generated summaries as primary evidence.
Cached dataset: worldsai_drup771.sql.gz
Verified
SHA-256 bfed485fff00580bc5ae310b4721299eb1d0808293942bd61a820e3e9db2680c