1969–70 South Pacific cyclone season

Category 2 tropical cyclone (Australian scale)
Tropical storm (SSHWS)
Duration	February 16 – February 19
Peak intensity	100 km/h (65 mph) (10-min)  980 hPa (mbar)

Dawn formed on February 16 on the Gulf of Carpentaria as a tropical low. It strengthened as a tropical storm (SSHWS) , or a Category 2 tropical cyclone (Australian scale) before dissipating, northwest of Brisbane on the South Pacific basin.

Category 3 severe tropical cyclone (Australian scale)
Category 1 tropical cyclone (SSHWS)
Duration	February 11 – February 25
Peak intensity	130 km/h (80 mph) (10-min)  965 hPa (mbar)

Dolly formed to the east of Luganville on February 11, and was last noted on February 25 to the north of French Polynesia. It peaked as a Category 1 tropical cyclone (SSHWS) or Category 3 severe tropical cyclone (Australian scale).

Category 3 severe tropical cyclone (Australian scale)
Category 1 tropical cyclone (SSHWS)
Duration	February 27 – March 6
Peak intensity	130 km/h (80 mph) (10-min)  965 hPa (mbar)

Severe Tropical Cyclone Emma originated as a depression to the west of Wallis and Futuna. It moved to the south-southeast before it was last noted on March 6 to the north of French Polynesia.

Category 1 tropical cyclone (Australian scale)
Tropical storm (SSHWS)
Duration	April 7 – April 11
Peak intensity	85 km/h (55 mph) (10-min)  980 hPa (mbar)

A disturbance developed to a depression, to the south-southwest of Fiji. It continued its L movement while strengthening to a tropical cyclone before weakening due to the cold waters and wind shear. Gillian was last noted, far south of Marshall Islands as it dissipated. It was strengthened to a equivalent of a tropical storm on the SSHWS scale.

Category 1 tropical cyclone (Australian scale)
Tropical storm (SSHWS)
Duration	April 13 – April 17
Peak intensity	75 km/h (45 mph) (10-min)  990 hPa (mbar)

A tropical low developed to a depression, south of Tuvalu. It traveled to the west, strengthening as Tropical Cyclone Helen before weakening. It was last noted on April 17, south-southwest of Fiji.

On April 17, 1970, Apollo 13 was making its final descent over the splashdown zone when they spotted a weakening Helen as they were re-entering the earth's atmosphere. Mission control had been tracking the storm to make sure it did not interfere with the mission's re-entry.

Category 1 tropical cyclone (Australian scale)
Tropical depression (SSHWS)
Duration	April 14 – April 19
Peak intensity	75 km/h (45 mph) (10-min)  990 hPa (mbar)

It was unknown if the precursor to Isa was noted to the southeast, or to the southwest of Solomon Islands. It strengthened to a Category 1 tropical cyclone (Australian scale), but it remained a tropical depression (SSHWS). It was last noted on April 19, as it dissipated.

During January 5, the Australian Bureau of Meteorology first noted the existence of a weak tropical depression over the eastern Coral Sea, however, it has since been determined that the depression developed during January 2 near 15.8°S 165.1°E / -15.8; 165.1.[1][2] The system was subsequently tracked by infrequent satelitte imagery, which revealed that it slowly completed a cyclonic loop near the Solomon Islands before curving back toward the southwest.[1] The system entered the Australian region during 15 January, where it subsequently became Severe Tropical Cyclone Ada before making landfall on Queensland during 17 January.[1]