NASA's Aqua satellite again flew just to the west of Typhoon Lupit early in the early morning of October 22 at 5:41 UTC (1:41 p.m. Asia/Manila Time, or 1:41 a.m. EDT). Aqua's Atmospheric Infrared Sounder (AIRS) instrument captured the western edge of Lupit, the area of the storm that was already raining on northeast Luzon. The infrared imagery showed that there are still some high thunderstorms, and that means some heavy rainfall coming to the region. Cloud top temperatures were colder than minus 63 Fahrenheit indicating a very strong tropical cyclone.
NASA's Terra satellite passed over Lupit and captured an image of the large storm using the Moderate Imaging Spectroradiometer (MODIS) instrument on October 22 at 0240 UTC (10:40 a.m. local time Asia/Manila) approaching the northern Philippines. The image of Lupit's clouds didn't show an eye, indicating the storm may be weakening. Dry air crossing over Luzon is beginning to wrap toward Lupit's center, interfering with deep convection ad thunderstorm development, weakening the typhoon. The dry air can't move in quickly enough for residents of Luzon, as the rain is already falling today. The U.S. Navy's Joint Typhoon Warning Center has amended the forecast track for Lupit, now keeping the center of circulation at sea and passing just northeast of Luzon over the next day or two before curving northwest. (Credit: Rob Gutro, NASA's Goddard Space Flight Center)

