Only a week after Typhoon Chataan struck Guam and left $60 million in damage, Typhoon Halong also threatened the island, although it veered to the south in the day before it would have struck.
Due to the storm, all flights were canceled in Guam and the Northern Marianas Islands, and officials advised residents in low-lying areas to evacuate.
While passing to the south, Halong produced waves as high as 6 m (20 ft) in Inarajan.
The waves left beach erosion along Guam's southern coast, and were higher than during Chataan's passage.
The typhoon produced peak sustained winds of 69 km/h (43 mph), with gusts to 90 km/h (56 mph); both observations were recorded at Guam's National Weather Service.
Damage on the island was estimated at $40,000.
The storm disrupted work to repair damage from Chataan.
Portions of the island, including Guam Memorial Hospital, had their power restored after Chataan, only to lose electricity during Halong.
The additional damage caused by Halong contributed to Governor Carl T.C. Gutierrez declaring the island as a state of emergency on July 22, which activated the Guam National Guard.

While passing northeast of the Philippines, Halong enhanced the monsoon, and combined with the effects from previous typhoons Rammasun and Chataan, as well as Severe Tropical Storm Nakri, there were 85 deaths, with 45 people injured in the Philippines.
About ten of the deaths were estimated to have been caused by Halong.
The combined damage in the country totaled $10.3 million (₱522 million 2002 PHP).

In Japan, Halong dropped heavy rainfall that peaked at 362 mm (14.3 in) in Nagano Prefecture.
The highest rainfall in Okinawa was 258 mm (10.2 in).
Near Tokyo, a station recorded winds of 112 km/h (69 mph), although winds gusted to 183 km/h (114 mph) at Kadena Air Base on Okinawa.
In the Ryukyu Islands of Japan, including Okinawa, Halong left more than 48,800 houses without power due to the strong winds.
Officials canceled bus service in Naze, Kagoshima during the storm.
Throughout the country, the typhoon destroyed six houses and damaged 223 others to varying degrees.
Halong also flooded 301 houses, forcing about 4,000 people to evacuate their homes, many along rivers.
Officials canceled 54 airline flights, 10 of them international, and due to the storm, 171 schools were closed.
In Sendai, Halong damaged roads in 550 locations and railroads in seven locations.
Nine levees were breached, and there were at least 270 landslides.
Damage totaled $89.8 million (¥10.3 billion 2002 JPY) across the country, mostly from agriculture.
During its passage, the typhoon injured nine people, one of them severely, and there was one death.
Only a week after Typhoon Chataan struck Guam and left $60 million in damage, Typhoon Halong also threatened the island, although it veered to the south in the day before it would have struck. Due to the storm, all flights were canceled in Guam and the Northern Marianas Islands, and officials advised residents in low-lying areas to evacuate. While passing to the south, Halong produced waves as high as 6 m (20 ft) in Inarajan. The waves left beach erosion along Guam's southern coast, and were higher than during Chataan's passage. The typhoon produced peak sustained winds of 69 km/h (43 mph), with gusts to 90 km/h (56 mph); both observations were recorded at Guam's National Weather Service. Damage on the island was estimated at $40,000. The storm disrupted work to repair damage from Chataan. Portions of the island, including Guam Memorial Hospital, had their power restored after Chataan, only to lose electricity during Halong. The additional damage caused by Halong contributed to Governor Carl T.C. Gutierrez declaring the island as a state of emergency on July 22, which activated the Guam National Guard.
While passing northeast of the Philippines, Halong enhanced the monsoon, and combined with the effects from previous typhoons Rammasun and Chataan, as well as Severe Tropical Storm Nakri, there were 85 deaths, with 45 people injured in the Philippines. About ten of the deaths were estimated to have been caused by Halong. The combined damage in the country totaled $10.3 million (₱522 million 2002 PHP).
In Japan, Halong dropped heavy rainfall that peaked at 362 mm (14.3 in) in Nagano Prefecture. The highest rainfall in Okinawa was 258 mm (10.2 in). Near Tokyo, a station recorded winds of 112 km/h (69 mph), although winds gusted to 183 km/h (114 mph) at Kadena Air Base on Okinawa. In the Ryukyu Islands of Japan, including Okinawa, Halong left more than 48,800 houses without power due to the strong winds. Officials canceled bus service in Naze, Kagoshima during the storm. Throughout the country, the typhoon destroyed six houses and damaged 223 others to varying degrees. Halong also flooded 301 houses, forcing about 4,000 people to evacuate their homes, many along rivers. Officials canceled 54 airline flights, 10 of them international, and due to the storm, 171 schools were closed. In Sendai, Halong damaged roads in 550 locations and railroads in seven locations. Nine levees were breached, and there were at least 270 landslides. Damage totaled $89.8 million (¥10.3 billion 2002 JPY) across the country, mostly from agriculture. During its passage, the typhoon injured nine people, one of them severely, and there was one death.
Typhoon Halong (2002)