Mauritius: Adverse weather forecast across much of the country through at least March 11

Severe weather is forecast across Mauritius through at least March 11. Heavy rainfall and thunderstorms are forecast across Mauritius main island and Rodrigues on March 8 and further showers and storms are forecast mainly over eastern and central parts of Mauritius main island on March 9 and southern parts March 10-11. Strong wind gusts and lightning may accompany storms. Rough seas are also likely in coastal areas. The Mauritius Meteorological Service has issued a heavy rainfall warning for Rodrigues Island through 16:30 March 8 and a heavy rainfall watch is in place for Mauritius main island March 8. Authorities will likely update or extend the coverage of weather alerts over the coming days.

Sustained heavy rainfall could trigger flooding in low-lying communities near rivers, streams, and creeks. Urban flooding is also possible in developed areas with easily overwhelmed stormwater drainage systems. Sites downstream from large reservoirs or rivers may be subject to flash flooding after relatively short periods of intense rainfall. Landslides are possible in hilly or mountainous areas, especially where heavy rain has saturated the soil.

Authorities could issue mandatory evacuation orders for flood-prone communities over the coming days. Disruptions to electricity and telecommunications services are possible where significant flooding or landslides impact utility networks.

Floodwaters and debris flows may render some bridges, rail networks, or roadways impassable, impacting overland travel in and around affected areas. Ponding on road surfaces could cause hazardous driving conditions on regional highways. Authorities could temporarily close some low-lying routes that become inundated by floodwaters.

Severe weather could also trigger flight delays and cancellations at regional airports, including Sir Seewoosagur Ramgoolam International Airport (SRU). Authorities may temporarily suspend port operations or close beach fronts if strong winds trigger hazardous sea conditions.

Localized business disruptions may occur in low-lying areas; some businesses might not operate at full capacity because of flood damage to facilities, possible evacuations, and some employees' inability to reach work sites.