Mauritius: Adverse weather forecast across much of the country through at least Nov. 8

Heavy rainfall is forecast across Mauritius through at least Nov. 8. The Mauritius Meteorological Service has issued a heavy rainfall warning nationwide. Moderate to heavy localized rainfall with thunderstorms are forecast through Nov. 8, mainly over the Central Plateau and southern parts of the island. Rainfall will gradually spread to the other areas. Water accumulations in flood-prone areas are likely, while periods of fog and rainfall in certain regions may reduce visibility. Thunderstorms and strong wind gusts may accompany heavy downpours. Further localized showers and thunderstorms are forecast across much of Mauritius over the coming days, and authorities will likely issue further weather warnings accordingly.

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 the soil has become saturated by heavy rainfall.

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.