Koppu (NW Pacific)

NASA's GPM Sees Koppu Menacing The Philippines

 

Tropical storm Koppu was approaching the Philippines when the GPM core observatory satellite passed above on October 15, 2015 at 1436 UTC (10:36 a.m. EDT) and analyzed the intensifying storm's rainfall. By October 16, the storm intensified into a typhoon as it neared Luzon.

On Oct. 16, GPM saw rain falling at a rate of over 133 mm (5.3 inches) per hour in intense convective thunderstorms just southwest of Koppu's center.
Credits: SSAI/NASA/JAXA, Hal Pierce

A rainfall analysis using data collected by GPM's Microwave Imager (GMI) instrument revealed that an eye was very close to forming near Koppu's center of circulation. Rain was measured by GPM's GMI instrument dropping rain at a rate of over 133 mm (5.3 inches) per hour in intense convective thunderstorms just southwest of Koppu's center.

Data from GPM's Dual-Frequency Precipitation Radar (DPR) instrument were used to show the 3-D structure of convective thunderstorms on Koppu's western side. Some of these powerful storms were found by DPR to reach altitudes of over 14.5 km (almost 9 miles high).

Koppu is known locally as Lando in the Philippines. The Philippine Atmospheric, Geophysical and Astronomical Services Administration or PAGASA has been issuing local advisories on the system. For updated warnings and watches from PAGASA, visit: www.pagasa.dost.gov.ph.

Warnings remain in effect throughout various areas in the Philippines as Koppu approached on October 16. Public storm warning signal #2 is in effect in Aurora and Isabela. Public storm warning signal #1 is in effect in Cagayan, Kalinga, Mt. Province, Ifugao, Benguet, Quirino, Nueva Vizcaya, Nueva Ecija, Bulacan, Pampanga, Tarlac, Pangasinan, Rizal, Quezon including Polillo Island, Camarines Norte & Sur and Catanduanes.

On October 16, 2015 at 5 a.m. EDT/0900 UTC, the center of Typhoon Koppu was located near latitude 15.5 north and longitude 126.7 west. The storm is about 335 nautical miles (385.8 miles/ 620.8 km) east of Manila, Philippines and moving west at 8 knots (9.2 mph/14.8 kph). Maximum sustained winds were near 85 knots (97.8 mph/157.4 kph). 

The Joint Typhoon Warning Center (JTWC) predicts that Typhoon Koppu will continue becoming more powerful. Koppu is predicted to have wind speeds of 115 knots (132 mph/213 kph) before making landfall in the Philippine island of Luzon.

Hal Pierce

Oct. 15, 2015 - NASA-NOAA's Suomi NPP Sees Koppu Nearing the Philippines

A large band of thunderstorms extending from the southwestern quadrant of Tropical Storm Koppu was brushing the northeastern Philippines in imagery from NASA-NOAA's Suomi NPP satellite on October 15.

NASA-NOAA's Suomi NPP satellite saw Tropical Storm Koppu on October 15 at 0428 UTC (12:28 a.m. EDT).
Credits: NASA/NRL/NOAA

A visible image from the Visible Infrared Imaging Radiometer Suite (VIIRS) instrument aboard NASA-NOAA's Suomi NPP satellite taken at 0428 UTC (12:28 a.m. EDT) showed the center of the tropical cyclone east of Luzon, Philippines. However, a thick band of thunderstorms extending to the southwest of the center was already brushing the east coast. That band of thunderstorms was wrapping into the low-level center of circulation.

Koppu is known locally as Lando in the Philippines. The Philippine Atmospheric, Geophysical and Astronomical Services Administration or PAGASA has been issuing local advisories on the system.

PAGASA has already raised warning signals. Signal 1 means winds of 30 to 60 kph (18.6 to 37.2 mph) is expected in at least 36 hours. Signal 1 is in effect for the Philippine provinces of Isabela, Cagayan, Quirino, Aurora Quezon including Polillo Island, Camarines Norte, Camarines Sur and Catanduanes. In addition PAGASA noted "Fisher folk are advised not to venture out over the northern and western seaboards of Northern Luzon." For updated warnings and watches from PAGASA, visit: www.pagasa.dost.gov.ph.

At 11 a.m. EDT on October 15, Tropical Storm Koppu's maximum sustained winds were near 60 knots (69 mph/111 kph). Koppu was centered near 15.8 North latitude and 128.4 East longitude, about 463 nautical miles (532.8 miles/857.5 km) east of Manila, Luzon, Philippines. 

Koppu was moving to the west at 13 knots (14.9 mph/24.8 kph). The Joint Typhoon Warning Center expects Koppu to move west and make landfall in eastern Luzon, Philippines as a typhoon on October 17.  

Rob Gutro


Oct. 14, 2015 - NASA's GPM Sees Some Intense Areas in Tropical Storm Koppu

The Global Precipitation Measurement (GPM) mission core satellite analyzed rainfall within Tropical Storm Koppu and identified areas of some intense thunderstorms