Dashboard

Map-page exception (DD-029): the map fills the full area below. The layer catalog on the left composes hazard, risk, impact, and forecast layers onto one shared canvas (SR-1); legend/summary on the right is a hidden-by-default floating panel.

Data catalog

Hazards

Drought Flood Cyclone

Risk maps

Flood risk (INFORM) Cyclone risk Composite multi-hazard risk Full risk assessments →

Impact overlays

Population impact Sector damage overlay Full impact detail →

Forecast layers

Flood forecast (+3d) Cyclone track forecast Full forecasts →

Sector overlays

Agriculture Water

Legend & panel

Indicator history

2021 2022202320242025 2026 (now)

Severity legend — Flood, river level

Watch (≥ 4.2m) — early signal, monitor closely

Warning (≥ 5.0m) — threshold confirmed, prepare to act

Severe (≥ 6.0m) — highest threshold breached, act now

Fixed vocabulary — Watch / Warning / Severe. Values match Early Warning → Thresholds.

Risk / Impact summary — Analamanga

55% normal · 20% Watch · 15% Warning · 10% Severe

Flood risk (INFORM)	Elevated
Cyclone risk	High
Est. population affected	142,000

Full risk assessments → · Full impact detail →

Active alerts

Analamanga	Severe	Review →
Atsinanana	Watch	Review →

Trends preview — river level (12mo)

Full forecasts & trends →

Sources

GloFAS flood levels (remote analytical DB, refreshed hourly) · CHIRPS rainfall (v3.0, daily) · NDVI (MODIS, 16-day composite) · Reference period: 2026-07-14 to 2026-07-21.