On Nov. 4 at 01:55 UTC (8:55 p.m. ET) NASA's Terra satellite captured this image of Super Typhoon Nuri as clouds moved into its eye.
Image Credit:
NASA Goddard MODIS Rapid Response Team
NASA's Terra Satellite Sees Typhoon Nuri in Eyewall Replacement
High clouds had moved over Super Typhoon Nuri's eye early on Nov. 4 when NASA's Terra satellite passed overhead as the storm was undergoing eyewall replacement.
Eyewall replacement occurs when the thunderstorms that circle the eye of a powerful typhoons or hurricanes are replaced by other thunderstorms. Basically, a new eye begins to develop around the old eye. Many intense hurricanes undergo at least one of these eyewall replacements during their existence.
On Nov. 4 at 01:55 UTC (8:55 p.m. EST) the Moderate Resolution Imaging Spectroradiometer or MODIS instrument that flies aboard NASA's Terra satellite captured a visible image of Super Typhoon Nuri as clouds moved into its eye. The MODIS image showed a large, thick band of thunderstorms spiraling into the eye that stretched to the south of the center. The extent of the clouds in the northern quadrant appeared to be just east of Japan.
A microwave image from NASA/JAXA's Tropical Rainfall Measuring Mission showed that Nuri is undergoing eyewall replacement, although the previously observed eye feature has become cloud filled and less defined.
By 1500 UTC (10 a.m. EST), Nuri's maximum sustained winds had dropped to 120 knots (138.1 mph/222.2 kph). Nuri was centered near 23.5 north latitude and 136.6 east longitude, about 293 nautical miles (337.2 miles/542.6 km) west-southwest of Iwo To and has tracked northeastward at 12 knots (13.8 mph/22.2 kph).
NOAA's National Weather Service office on Iwo To (also known as Iwojima) current conditions at 10 a.m. EST on Nov. 4 reported winds from the southeast were sustained at 22 mph. Skies were mostly cloudy and the air temperature was 78F (26C). Heavy rain showers were reported on Nov. 3.
Nuri is passing to the west of Iwo To and is expected to move to the northeast and parallel the big island of Japan over the next couple of days while weakening. Within two days the storm is expected to weaken just below hurricane-force.
Rob Gutro
NASA's Goddard Space Flight Center
NASA's Goddard Space Flight Center
On Nov. 3 at 04:20 UTC (12:20 a.m. EDT) NASA's Aqua satellite captured this image of Super Typhoon Nuri after it developed an eye.
Image Credit:
NASA Goddard MODIS Rapid Response Team
On Nov. 1, when NASA's Aqua satellite captured this image of Super Typhoon Nuri at 04:30 UTC (12:30 a.m. EDT) it had not yet developed an eye.
Image Credit:
NASA Goddard MODIS Rapid Response Team
Over the course of two days, from Nov. 1 to Nov. 3, NASA's Aqua satellite watched from space as Tropical cyclone Nuri strengthened into a Super Typhoon and "opened" or developed an eye.
On Nov. 1, when the Moderate Resolution Imaging Spectroradiometer or MODIS instrument aboard NASA's Aqua satellite captured a visible image of Super Typhoon Nuri at 04:30 UTC (12:30 a.m. EDT) and it had not yet developed an eye. On Nov. 3 at 04:20 UTC (12:20 a.m. EDT) MODIS on Aqua passed over Super Typhoon Nuri again after it developed an eye. By Nov. 3 the bands of thunderstorms spiraling into the center of the low-level circulation had become more tightly wrapped. The image also showed that the widest band of thunderstorms were over the northern and eastern quadrants of the storm.
At 1500 UTC (10 a.m. EST) on Nov. 3, Nuri's maximum sustained winds had reached 155 knots (178.4 mph/ 287.1 kph), making it a Category 5 hurricane on the Saffir-Simpson wind scale. Some minor intensification is expected before the storm begins to weaken on Nov. 4.
Nuri was centered near 20.2 north latitude and 133.9 east longitude, about 514 nautical miles (591.5 miles/ 951.9 km) southeast of Kadena Air Base, Okinawa, Japan. It was moving to the northeast at 10 knots (11.5 mph/18.5 kph). Nuri is expected to pass west of Iwo To on Nov. 5 as it continues moving in a northeasterly direction. For current weather conditions in Iwo To (also known as Iwojima), visit:http://weather.noaa.gov/weather/current/RJAW.html.
Nuri is expected to intensify further before weakening. Adverse conditions will cause the storm to go on a weakening trend and the storm is expected to become extra-tropical after three or four days.
Rob Gutro
NASA's Goddard Space Flight Center
NASA's Goddard Space Flight Center
When NASA-NOAA's Suomi NPP captured this ghostly white image of Tropical Depression Nuri haunting the western North Pacific Ocean on Oct. 31 at 3:36 UTC.
Image Credit:
NRL/NASA/NOAA
Oct. 31, 2014 - Tropical Depression Nuri Now Haunting the Western Pacific Ocean
Tropical Depression Nuri formed on Halloween morning, October 31, and is haunting the waters of the western North Pacific Ocean. NASA-NOAA's Suomi NPP satellite captured a ghostly-white image of the storm.
When Suomi NPP flew over Tropical Depression Nuri on Oct. 31 at 3:36 UTC, the Visible Infrared Imaging Radiometer Suite or VIIRS instrument aboard captured an infrared image of the storm. The infrared data shows temperature, an indicated that there were very high thunderstorms with very cold cloud top temperatures surrounding the center of the low level circulation and in south of the center.
VIIRS is a scanning radiometer that collects visible and infrared imagery and "radiometric" measurements. Basically it means that VIIRS data is used to measure cloud and aerosol properties, ocean color, sea and land surface temperature, ice motion and temperature, fires, and Earth's albedo (reflected light).
On Oct. 31 at 0900 UTC (5 a.m. EDT), Nuri had maximum sustained winds near 30 knots (34.5 mph/55.5 kph). It was centered near 12.7 north latitude and 136.0 east longitude. That puts Nuri's center about 211 nautical miles (242.8 miles/390.8 km) north-northwest of Yap. Nuri has tracked westward at 8 knots (9.2 mph/14.8 kph).
Nuri is forecast to strengthen into a tropical storm and reach typhoon strength by Nov. 1. The storm is expected to curve toward the northwest, then turn northeast over the next couple of days, while remaining over the open waters of the western North Pacific Ocean.
Rob Gutro
NASA's Goddard Space Flight Center
NASA's Goddard Space Flight Center
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