Upon being named Nancy on February 13, a gale warning was put in place for American Samoa.
Later that day, four additional countries were placed under watches and warnings.
A gale watch was declared for Samoa and strong wind warnings were raised in Tuvalu, Tokelau and the Cook Islands.
On February 14, a tropical cyclone alert was declared for the southern Cook Islands.
Additionally, Niue was placed under a strong wind warning.
Later that day, Wallis and Futuna were placed under a strong wind warning.
On February 15, a hurricane warning was issued for the southern Cook Islands as Nancy tracked through the archipelago.

Already impacted by Cyclone Meena just a week prior, residents in the Cook Islands heeded warnings and evacuated to emergency shelters.
Coastal areas where seawalls had been damaged or destroyed by Meena were of particular interest to warning centers and urged all people in the vicinity of them to evacuate to a nearby shelter.
On Aitutaki, all preparations were completed by February 15.
Tourists were relocated from hotels to one of six shelters set up throughout the island.
An estimated 100 people reportedly evacuated to shelters out of the 2,000 that live on the island.
Radio broadcasts urging people to move to shelters were broadcast all day and the local cyclone center had all staff on standby.
Eight shelters were opened on Rarotonga by this time.
All residents were evacuated from low-lying areas as large swells were anticipated to inundate those areas.
Schools throughout the Cook Islands were closed prior to the cyclone and would remain closed for several more days.
Many of the south Pacific islands were in a "critically dangerous situation" due to the quick succession of cyclones.
Upon being named Nancy on February 13, a gale warning was put in place for American Samoa. Later that day, four additional countries were placed under watches and warnings. A gale watch was declared for Samoa and strong wind warnings were raised in Tuvalu, Tokelau and the Cook Islands. On February 14, a tropical cyclone alert was declared for the southern Cook Islands. Additionally, Niue was placed under a strong wind warning. Later that day, Wallis and Futuna were placed under a strong wind warning. On February 15, a hurricane warning was issued for the southern Cook Islands as Nancy tracked through the archipelago.
Already impacted by Cyclone Meena just a week prior, residents in the Cook Islands heeded warnings and evacuated to emergency shelters. Coastal areas where seawalls had been damaged or destroyed by Meena were of particular interest to warning centers and urged all people in the vicinity of them to evacuate to a nearby shelter. On Aitutaki, all preparations were completed by February 15. Tourists were relocated from hotels to one of six shelters set up throughout the island. An estimated 100 people reportedly evacuated to shelters out of the 2,000 that live on the island. Radio broadcasts urging people to move to shelters were broadcast all day and the local cyclone center had all staff on standby. Eight shelters were opened on Rarotonga by this time. All residents were evacuated from low-lying areas as large swells were anticipated to inundate those areas. Schools throughout the Cook Islands were closed prior to the cyclone and would remain closed for several more days. Many of the south Pacific islands were in a "critically dangerous situation" due to the quick succession of cyclones.
Cyclone Nancy