west-northwestward toward Woleai; the Japan Meteorological Agency (JMA) considers the storm to have developed into a tropical depression on April 26, though the JTWC began monitoring Olive as a tropical storm the day after. Olive quickly intensified following tropical cyclogenesis, becoming a typhoon by 12:00 UTC on April 27. Late on April 28, a reconnaissance mission sampled winds of and a minimum barometric pressure of 932 mbar (hPa; ); from these parameters Olive reached peak intensity at 00:00 UTC on April 29 with a minimum pressure of 920 mbar as computed by the JMA. Olive passed near Guam and Saipan later that day, impacting the latter with winds of . As the typhoon receded to more northerly latitudes, it slowly weakened, transitioning into an extratropical cyclone on May 5 before dissipating four days later; maintaining typhoon strength for 8.5 days, Olive remained a typhoon longer than any other storm in 1963. As Olive neared Guam, then-governor Manuel Guerrero ordered the evacuation of low-lying areas and the opening of shelters at schools, churches, and other locations. Olive caused considerable damage in the Mariana Islands: 95 percent of homes on Saipan sustained extensive damage, with another 5 percent destroyed by the storm. Homes were also damaged on nearby Rota, with the widespread loss of crops; property and agricultural losses were also accrued on Guam and Tinian, where power lines were downed by strong winds and 1,000 people were left homeless. The effects of the typhoon set back Guam's recovery from Typhoon Karen the previous year, damaging homes partially repaired via recovery loans for Karen. Estimated damage from Olive amounted to US$5 million. In the storm's aftermath, deputy high commissioner for the Trust Territory of the Pacific Islands Jose Benitez requested the declaration of Tinian and Saipan as disaster areas. On April 30, then-U.S. President John F. Kennedy acknowledged Benitez's request and declared a disaster area for the impacted islands. Kennedy would later allocate US$1.3 million for storm relief in Saipan, Tinian, and Rota. Food and medical supplies were sent from the Caroline and Marshall Islands to the Mariana Islands. Typhoon Polly (Auring) Polly originated from an area of low pressure first detected north-northwest of Woleai on May 25. The JMA determined that the disturbance developed into a tropical depression on May 27, though the JTWC initiated warnings on the system on May 31. The cyclone gradually strengthened after formation, reaching tropical storm