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Typhoon Mike at peak intensity while approaching the Philippines
|Formed||November 5, 1990|
|Dissipated||November 18, 1990|
|Highest winds||10-minute sustained:
185 km/h (115 mph)
280 km/h (175 mph)
|Lowest pressure||915 mbar (hPa); 27.02 inHg|
|Damage||$220 million (1990 USD)|
|Areas affected||Philippines, China|
|Part of the 1990 Pacific typhoon season|
Super Typhoon Mike (international designation: 9025, JTWC designation: 27W, PAGASA name: Ruping) was the second strongest typhoon, behind Typhoon Flo, and the deadliest typhoon of the 1990 Pacific typhoon season as it crossed the Philippines in November. Forming from an area of persistent convection over the Caroline Islands, Mike headed westward. Early on the 8th, the depression strengthened to Tropical Storm Mike near Yap. Mike became a typhoon early on November 9, the 18th of the season. On November 10, the typhoon rapidly intensified, reaching peak winds of 165 mph later that day. In a 48-hour period, the typhoon deepened 99 millibars to a pressure of 915 mbar (27.0 inHg). Mike weakened shortly before land interaction and slammed over the eastern Philippines as a 140 mph (230 km/h) typhoon on November 12. 
Mike reached a secondary peak of 95 mph (153 km/h) winds on November 14. However, interaction with Vietnam again weakened it to a minimal typhoon. Vertical shear increased, weakening Mike to a tropical storm on the 16th. Early the next day, the storm passed over western Hainan Island, and degraded to a tropical depression that night. After a brief passage over the Gulf of Tonkin Mike hit southern China, then dissipated there on November 18. 
An area of persistent convection over the Caroline Islands was first noted in the Significant Tropical Weather Advisory on November 6. As it headed westward, its outflow rapidly improved, with banding and a more circular cloud pattern. The organization continued, and it was upgraded to Tropical Depression 27W on the 7th. Early on the 8th, the depression strengthened to Tropical Storm Mike near the island of Yap. 
Mike continued its westward movement and its intensification rate, and became a typhoon early on November 9, the 18th of the season. At this time, a weakness in the subtropical ridge, which kept the storm on its westward movement, was bring Mike northward. This did not occur, and Mike kept its persistent westward motion. On November 10, the typhoon rapidly intensified, reaching peak winds of 165 mph later that day. In a 48-hour period, the typhoon deepened 99 millibars to a minimum central pressure of 915 mbar (27.0 inHg).  Mike retained its intensity of 165 mph (266 km/h) for a day as it approached the Philippines. Fortunately for the archipelago, the combination of an eyewall replacement cycle and land interaction to its west weakened the super typhoon. Initially, Mike was forecast to move west northwest and make landfall over Metro Manila, Southern Luzon, and Bicol region, but Mike slammed over the eastern Philippines as a 140 mph (230 km/h) typhoon on November 12. The typhoon further weakened to an 85 mph (137 km/h) typhoon while crossing the islands, but in the South China Sea, conditions favored slight strengthening. 
Mike reached a secondary peak of 95 mph (153 km/h) winds on November 14, but land interaction with Vietnam again weakened it to a minimal typhoon. The forecast break in the subtropical ridge finally occurred on the 15th, causing a northwest motion. Vertical shear increased, weakening Mike to a tropical storm on the 16th. Early the next day, the storm passed over western Hainan Island, and degraded to a tropical depression that night. After a brief passage over the Gulf of Tonkin Mike hit southern China where it dissipated on November 18. 
|Costliest Philippine typhoons|
|1||Bopha (Pablo)||2012||42.2 billion||1.04 billion|
|2||Haiyan (Yolanda)||2013||39.8 billion||879 million|
|3||Parma (Pepeng)||2009||27.3 billion||608 million|
|4||Nesat (Pedring)||2011||15 billion||333 million|
|5||Fengshen (Frank)||2008||13.5 billion||301 million|
|6||Ketsana (Ondoy)||2009||11 billion||244 million|
|7||Megi (Juan)||2010||11 billion||255 million|
|8||Mike (Ruping)||1990||10.8 billion||241 million|
|9||Angela (Rosing)||1995||10.8 billion||241 million|
|10||Flo (Kadiang)||1993||8.75 billion||195 million|
More than 50,000 people fled their homes when Mike made landfall.  16 crewmen of the commercial vessel MV Dona Roberta were reported missing after it sank from strong waves in the south, and a sailor was missing when one of the four Navy ships sank at the Cebu port. Two sailors that were missing earlier were rescued.  12 passenger ships sank while anchored at the Cebu wharf but no fatalities were reported. It was reported that 6 people drowned in Leyte province and 3 others died in adjacent provinces.  In Negros Occidental province, 3 people drowned in 1.6 m (5.2 ft) waters. Mike spared Manila's metropolitan area but the central provinces reported gusty winds that knocked out power and destroyed communication facilities in some areas.  Red Cross and civil defense officials stated that a tornado was spawned near Cagayan de Oro and left millions homeless.  On Panay Island, at least 2 people were killed, including a 10-year old boy being hit by a tree. 3 other bodies were recovered from the surf off Misamis Oriental in Mindanao. Another ship called the Iligan Flores was missing off the coast of Mindanao but no reports about the fate of the passengers and crew.  The typhoon injured about 500 people and caused $275 million (1990 USD) in damage to property and crops. The storm forced 3.2 million Filipinos to seek temporary shelter in schoolhouses and evacuation centers. Mike destroyed 116,512 homes and severely damaged 294,131 others.  At least 17 people, including 6 Americans, were trapped on an oil rig off Palawan Island after 68 other workers were evacuated.  The typhoon's heavy rainfall produced mudslides which, combined with the heavy wind damage, resulted in over $14 million in damage (1990 USD, $20.8 million 2005 USD). Over 748 people were reported killed, making Mike the most destructive typhoon for the Philippines since Typhoon Ike in 1984, which killed over 1,000 people. President Corazon Aquino declared a state of calamity in the Visayas. Typhoon Mike's damage to the infrastructure of the city and province of Cebu forced its local leaders to rethink governmental priorities. A conscious effort to rebuild after the damage was promoted, resulting into the boom of the economy of Cebu, dubbed CEBOOM. Due to the destruction in the Philippines, the name Mike was retired and was replaced by Manny. Its PAGASA name, Ruping, was also retired, and was replaced by Ritang.
- List of tropical cyclones
- Tropical cyclones that have struck the Central Philippines and claimed more than 1,000 lives
- JTWC Mike Report "JTWC Mike Report". Joint Typhoon Warning Center. November 1990.
- Reuter (November 14, 1990). "Typhoon Kills 12 in Central Philippines". New Straits Times. Retrieved May 14, 2013.
- Associated Press (November 14, 1990). "Typhoon Kills 5 in the Philippines". Gainesville Sun. Retrieved May 16, 2013.
- "Typhoon Leaves 235 Dead in Philippines". Moscow-Pullman Daily News. November 20, 1990. Retrieved May 16, 2013.
- "Strong Typhoon Hits Philippines; 19 Missing". The Free Lance-Star. November 13, 1990. Retrieved May 16, 2013.
- Philippine Atmospheric Geophysical and Astronomic Services Administration. Most Destructive Tropical Cyclones for Month of December (1948-2000). Retrieved on February 4, 2007.