As the storm was situated off the coast of Madagascar on March 10, it would attain peak winds of 100 km/h (65 mph) hours before making landfall near Mananjary in Fianarantsoa Province.

Throughout much of central Madagascar, Hubert produced heavy rains, peaking at 137.5 mm (5.41 in) in Mananjary, that caused widespread flooding.

Severe Tropical Storm Hubert was first identified as an area of low pressure off the northeastern coast of Madagascar on March 5, 2010.

[1] On March 9, the Regional Specialized Meteorological Center for the South-West Indian Ocean basin, Météo-France, classified the low as a tropical depression, the 13th of the season.

Situated in a region of weak steering currents, the depression was quasi-stationary and environmental conditions, low wind shear and good divergence, favored gradual development.

[2] Within hours of this, the Joint Typhoon Warning Center (JTWC) issued a Tropical Cyclone Formation Alert for the depression.

[4] Early on March 10, the JTWC classified the system as Tropical Cyclone 18S as deep convection consolidated around the storm's center.

[8] Just six hours after being named, Hubert attained its peak intensity as a severe tropical storm with winds of 100 km/h (65 mph) along with a barometric pressure of 985 mbar (hPa; 29.09 inHg).