Cyclone Ditwah · Sri Lanka 2025
Examine rainfall context around Cyclone Ditwah and separate historical observations, archived reports and today's rainfall forecasts. Colombo is one sample point, not the cyclone's footprint.
How did rainfall conditions evolve around Cyclone Ditwah, and which verified forecast, river and official-warning information would be needed for earlier awareness?
Separate the event from hindsight.
This chronology is reconstructed from later reports. It is not a run of Iris before the event and does not demonstrate warning lead time.
No documented timeline entries on or before this cutoff. Change the date or reveal the hindsight context.
Report dates do not prove public availability before the event. A hindsight-free forecast evaluation needs archived forecasts and original issue times.
Inspect the historical precipitation estimate.
Daily mean rate · mm/day · UTC · coarse-grid point sample