The 2005 North Indian Ocean cyclone season caused much devastation and many deaths in Southern India despite the storms’ weakness.

The basin covers the Indian Ocean north of the equator as well as inland areas, sub-divided by the Arabian Sea and the Bay of Bengal.

The official India Meteorological Department tracked 12 depressions in the basin, and the unofficial Joint Typhoon Warning Center (JTWC) monitored two additional storms.

The depression in the Arabian Sea was one of only two in that body of water during the year, the other of which formed in September and killed 13 people.

December was active, with cyclonic storms Baaz and Fanoos hitting southern India, resulting in 11 fatalities, and a deep depression remaining over waters in the middle of the month.

The tropical systems were tracked using satellite imagery and the Dvorak technique, while forecasts were based on cyclone models.

The IMD upgraded the system to a deep depression on January 14, the same day that the JTWC classified it as Tropical Cyclone 02B.

[6] As the storm stalled over Madhya Pradesh, it produced widespread flooding that isolated 129 villages, killing 26 people.

[7] A tropical depression developed in the South China Sea on September 12 and moved westward into central Vietnam on the next day.

Offshore, an estimated 9,000 fishermen in roughly 600 vessels were caught in the storm; 15–20 of these ships capsized with 85 people collectively aboard.

[1] More than 140,000 people were forced to relocate after the Godavari and Krishna rivers burst their banks and caused tremendous flooding.

Low-lying areas of Chennai were inundated, disrupting travel by road, rail, and air, and causing schools to close.

Two people in Chennai were electrocuted, and the provincial electric board shut off power in heavily flooded areas.

[17] The storm quickly deteriorated, and the IMD downgraded it to a remnant low on December 2,[1] the same day that the JTWC issued their final advisory.

[17] The precursor to the storm brought heavy rainfall to southern Thailand, reaching 417 mm (16.4 in) in Ko Samui.

The system moved west-southwestward through the Bay of Bengal due to a ridge to the north,[18] organizing into a depression two days later.

[18] Moderate wind shear allowed the system to strengthen further, and the IMD classified it as Cyclonic Storm Fanoos early on December 7.

[1][18] Two days later, the JTWC estimated peak 1 minute winds of 110 km/h (70 mph) as the storm bypassed northern Sri Lanka.

[19] Wind shear and proximity to land weakened Fanoos into a deep depression on December 10, and shortly after it made landfall on eastern Tamil Nadu near Vedaranyam.

[21] The final landfalling storm of the season, Fanoos brought heavy rainfall to Tamil Nadu, with a daily peak of 350 mm (14 in) in Ramanathapuram.

On December 17, the JTWC classified it as Tropical Cyclone 07B,[18] the same day that the IMD upgraded it to a deep depression with peak 3 minute winds of 55 km/h (35 mph).

Increasing wind shear prevented further development as the storm turned to the north, keeping it east of Sri Lanka.

An approaching trough turned the weakening system to the northeast on December 21, and the next day the IMD downgraded it to a remnant low in the central Bay of Bengal.

[4][24] In the middle of June, an area of convection formed along the monsoon offshore the Saurashtra region of western India.

Moving to the northwest, it organized into a depression on September 12, and soon after made landfall near Paradip, Odisha with winds of 45 km/h (30 mph).

Across Odisha, the rains inundated 75,943 ha (187,660 acres) of crop fields, and later killed six people after flooding villages in Madhya Pradesh.

[14] Heavy rains swamped portions of northern Bangladesh causing tremendous flooding that destroyed more than 100,000 mud-built homes.

On November 22, it crossed over Sri Lanka and later degenerated into a remnant low over the Gulf of Mannar, never reaching winds beyond 45 km/h (30 mph).

The remnants brought heavy rainfall to Tamil Nadu, with Panruti reporting 540 mm (21 in) of precipitation over 72 hours.