Flooding and heavy rainfall were observed in several regions, with a maximum of 388 millimeters (15.3 in) of rain being recorded in Île Sainte-Marie.

Other countries also sustained impacts, with Réunion receiving swells of 5–6 meters (16–20 ft) and parts of Kenya experiencing flooding.

On 9 March at 10:30 UTC, the Joint Typhoon Warning Center (JTWC) began monitoring an area of atmospheric convection located approximately 335 nautical miles (620 km; 385 mi) south-southwest of Diego Garcia, assessing its development potential within the next day as low.

Convection was disorganized, and conditions were marginally favorable due to a beneficial upper-level environment and strong wind shear at 25–30 knots (45–55 km/h; 30–35 mph), with sea surface temperatures in the area reaching 28–29 °C (82–84 °F).

[14] Cloud tops slightly warmed and wrapping bands of convection tightened into the circulation over the next few hours, with favorable radial outflow negating the effects of moderate vertical wind shear.

[19] MFR assessed that Eliakim had peaked in intensity at 12:00 UTC, estimating maximum 10-minute sustained winds of 110 km/h (70 mph) and a minimum barometric pressure of 980 hPa (28.94 inHg),[7] with the JTWC downgrading it to a tropical storm at the same time.

[8] The motion of Eliakim slowed down due to high terrain over the area[20] and became almost stationary,[21] with deep convective bands having weakened and collapsed as the system continued inland.

[25] The storm's motion slowly sped up[26] as land interaction severely impacted its structure,[27] and at 21:00 UTC, Eliakim re-emerged over water, tracking into favorable conditions for further development.

[29] Conditions gradually became unfavorable for intensification[30] as the circulation became partially exposed,[31] cloud tops warmed,[32] convection moved further from the center,[33] and wind shear increased to 25 knots (45 km/h; 30 mph).

[7] Conditions continued to worsen as sea surface temperatures dropped to 25 °C (77 °F),[36] and at 06:00 UTC, MFR assessed that Eliakim transitioned into a post-tropical depression,[7] as advanced scatterometer data showed an elongated circulation,[37] with rainfall also ceasing on the storm's northern side.

[7] On 15 March, Météo Madagascar issued a red alert for areas in the central-eastern and northern parts of Madagascar due to heavy rains and strong winds, also issuing yellow cyclone alerts for the regions of Alaotra-Mangoro, Analanjirofo, Atsinanana, Diana, Sava, Sofia, and the district of Tsaratanana.

[39] Four teams were deployed by the Bureau National de Gestion des Risques et Catastrophes to Antalaha, Île Sainte-Marie, Maroantsetra, and Soanierana Ivongo on the same day.

[40] The Copernicus Programme's Emergency Management Service was activated on 16 March,[41] with red cyclone alerts being issued by Météo Madagascar for the regions of Alaotra-Mangoro, Analanjirofo, Atsinanana, Sava, and the districts of Bealanana, Befandriana-Nord, and Mandritsara.

Red alerts were also issued by the agency for the northern and east-central parts of Madagascar due to heavy rains and strong winds.

[45] At 13:00 UTC (16:00 EAT), a red alert was issued for the region of Vatovavy-Fitovinany due to heavy rains accompanied by occasional gale-force winds.

As Eliakim moved away from the country, blue alerts were also issued for the regions of Amoron'i Mania, Analamanga, Betsiboka, Boeny, Bongolava, Diana, Haute Matsiatra, Itasy, Sava, Sofia, and Vakinankaratra.

[55] The immediate effects of Eliakim ceased on 20 March as it moved away from Madagascar; water levels in the Matitanana River rose further to 7 meters (23 ft).

[48] Waves reaching 5–6 meters (16–20 ft) affected the island, impacting coastal roads[73] and forcing the closure of lanes close to shore.