dissipate. Late on March 12, Dera became extratropical, which continued southeastward along the cold front. The precursor of Dera dropped heavy rainfall in Mayotte, reaching on Pamanzi. The precipitation came in intense squalls, with hourly peaks of recorded, which flooded rivers and some houses. In addition, the system produced gusts of , strong enough to damage roofs, cause power outages, and damage fields and trees. Heavy rainfall also spread across Mozambique, producing additional river flooding Zambezi in a region that had been flooded for weeks. The floods wrecked dozens of homes and covered many roads, while killing two people. Later, gusts peaked at on Europa Island, while rainfall reached . Severe Tropical Storm Evariste The ITCZ became active in late March, spawning several areas of convection across the Indian Ocean and into the adjacent Australian basin. The westernmost system had a circulation as of March 31 about 600 km (370 mi) west-southwest of Diego Garcia. Despite favorable conditions, the system failed to organize at first, although it became Tropical Disturbance 9 on April 2 after the structure improved. Drifting to the southwest and later to the south, the associated convection waxed and waned, finally organizing more on April 4; on that day, the disturbance quickly intensified into Moderate Tropical Storm Evariste. A day prior, the JTWC had initiated advisories on the system as Tropical Cyclone 18S. A trough to the south weakened the ridge, turning the storm to the southwest. A small eye formed on April 5, but later dissipated after an increase in thunderstorm activity. On that day, the MFR estimated peak 10 minute winds of 110 km/h (70 mph), just shy of tropical cyclone status, while the JTWC estimated 1 minute winds of 140 km/h (85 mph). On April 6, increased wind shear from the approaching trough began weakening Evariste and turned it to the south. That day, it passed about 135 km (85 mi) east of St. Brandon, and on April 7, Evariste bypassed Rodrigues about 200 km (125 mi) to the southwest. The convection gradually deteriorated and left the circulation exposed. Late on April 7, the storm suddenly turned southwestward toward a developing low east of Madagascar, although the southwest motion resumed soon after. On April 8, Evariste dissipated, dissipating ahead of the nearby trough. Evariste produced peak gusts of on St. Brandon, with of rainfall recorded. Stronger winds were recorded on Rodrigues while the storm