World: Greatest Ninety-Six-Hour (4 day) Rainfall
| Record Value | 4.936m (194.33") |
|---|---|
| Date of Record | 24-27 / 2 [February] / 2007 |
| Formal WMO Review | Yes (2010) |
| Length of Record | 1968-present |
| Instrumentation | Précis-Mécanique Tipping bucket Raingauge, type 3020, (20 g plastic buckets) with an aperture of 400 cm² |
| Geospatial Location | Cratère Commerson, La Réunion [21°12'S, 55°39'E, elevation: 2310m (7579ft)] |
References
WMO CCl rapporteur for climate extremes decision, October 2007 based on report by Hubert Quetelard and Pierre Bessemoulin. Evaluation Committee: Hubert Quetelard (METEO-France, La Réunion), Pierre Bessemoulin (METEO-France, France), Thomas C. Peterson (NCDC, United States), Andrew Burton (Bureau of Meteorology, Australia), Y. Boodhoo (Mauritius Meteorological Services, Mauritius), and Randall S. Cerveny (Arizona State University, United States)
Discussion
Event occurred with passage of Tropical Cyclone Gamede in South Indian Ocean. Reunion Island is located approximately 670 kilometers east of Madagascar in the Indian Ocean. Extreme orography (mountains to 3071meters and steep valleys) amplify orographic uplift.
An article was produced discussing this event in the Bulletin of the American Meteorological Society. A *.pdf of that article is available:
Closeup Satellite Image of Cratère Commerson, La Reunion, South Indian Ocean
Regional Satellite Image of Cratère Commerson, La Reunion, South Indian Ocean