Tag Archives: Aparri

Typhoon Ragasa Intensifies to Equivalent of Cat. 5 Hurricane

Typhoon Ragasa intensified to the equivalent of a Category 5 hurricane on the Saffir-Simpson Scale on Saturday night east of northern Luzon.  At 5:00 a.m. EDT on Sunday the center of Typhoon Ragasa was located at latitude 18.5°N and longitude 125.8°E which put the center about 280 miles (455 km) east of Aparri, Philippines.  Ragasa was moving toward the west-northwest at 8 m.p.h. (13 km/h).  The maximum sustained wind speed was 160 m.p.h. (260 km/h) and there were wind gusts to 195 m.p.h. (315 km/h).  The minimum surface pressure was 922 mb.

Typhoon Ragasa intensified to the equivalent of a Category 5 hurricane on Saturday night.  A small circular eye was at the center of Ragasa’s circulation.  The eye was surrounded by a ring of thunderstorms and the strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms were revolving around the center of Typhoon Ragasa.  Storms near the center of Ragasa generated strong upper level divergence that pumped mass away in all directions from the typhoon.  The removal of large quantities of mass caused the surface pressure to decrease rapidly.

The circulation around Typhoon Ragasa was large.  Winds to typhoon force extended out 60 miles (95 km) from the center of Ragasa’s circulation.  Winds to tropical storm force extended out 215 miles (345 km) from the center of Typhoon Ragasa.

The Hurricane Intensity Index (HII) for Typhoon Ragasa was 35.0.  The Hurricane Size Index (HSI) was 20.6 and the Hurricane Wind Intensity Size Index (HWISI) was 55.6.  Typhoon Ragasa was similar in size and intensity to Hurricane Maria when Maria hit Puerto Rico in 2017.

Typhoon Ragasa will move through an environment very favorable for a powerful typhoon during the next 24 hours.  Ragasa will move over water where the Sea Surface Temperatures are near 29°C.  It will move through a region where the upper level winds are weak and there will be little vertical wind shear.  Typhoon Ragasa could continue to intensify during the next 24 hours unless an eyewall replacement cycle occurs.

Typhoon Ragasa will move around the southern side of a high pressure system over the Western North Pacific Ocean.  The high pressure system will steer Ragasa toward the west-northwest during the next 24 hours.  On its anticipated track, the center of Typhoon Ragasa will be north of Luzon in 24 hours.

Typhoon Ragasa will bring very strong winds and heavy rain to the Batanes Islands and to the Babuyan Islands.  Ragasa could cause a storm surge of up to 16 feet (5 meters).  Typhoon Ragasa could cause catastrophic damage on those islands.  Typhoon Ragasa will also cause strong winds and heavy rain in northern Luzon.  Heavy rain could cause flash floods in some locations.

Elsewhere over the Western North Pacific Ocean, powerful Typhoon Neoguri continued to spin far to the southeast of Japan.  At 5:00 a.m. EDT on Sunday the center of Typhoon Neoguri was located at latitude 28.0°N and longitude 151.6°E which put the center about 880 miles (1420 km) east-southeast of Tokyo, Japan.  Neoguri was moving toward the northwest at 11 m.p.h. (17 km/h).  The maximum sustained wind speed was 145 m.p.h. (235 km/h) and there were wind gusts to 175 m.p.h. (280 km/h).  The minimum surface pressure was 936 mb.

Typhoon Ragasa Rapidly Intensifies to Equivalent of Major Hurricane

Typhoon Ragasa rapidly intensified to the equivalent of a major hurricane east of northern Luzon on Saturday.  At 11:00 a.m. EDT on Saturday the center of Typhoon Ragasa was located at latitude 17.4°N and longitude 128.4°E which put the center about 475 miles (765 km) east of Aparri, Philippines.  Ragasa was moving toward the northwest at 7 m.p.h. (11 km/h).  The maximum sustained wind speed was 115 m.p.h. (185 km/h) and there were wind gusts to 145 m.p.h. (235 km/h).  The minimum surface pressure was 957 mb.

Typhoon Ragasa rapidly intensified to the equivalent of a major hurricane east of northern Luzon on Saturday.  A small circular eye was present at the center of Ragasa’s circulation.  The eye was surrounded by a ring of thunderstorms and the strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms were revolving around the center of Typhoon Ragasa.  Storms near the center of Ragasa generated strong upper level divergence that pumped mass away in all directions from the typhoon.  The removal of large quantities of mass caused the surface pressure to decrease rapidly.

The circulation around Typhoon Ragasa was large.  Winds to typhoon force extended out 70 miles (110 km) from the center of Ragasa’s circulation.  Winds to tropical storm force extended out 275 miles (445 km) in the southern half of Typhoon Ragasa.  Winds to tropical storm force extended out 165 miles (265 km) in the northern side of Ragasa’s circulation.

The Hurricane Intensity Index (HII) for Typhoon Ragasa was 20.6.  The Hurricane Size Index (HSI) was 20.3 and the Hurricane Wind Intensity Size Index (HWISI) was 40.9.  Typhoon Ragasa was similar in intensity to Hurricane Rita when Rita hit southwest Louisiana in 2005.  Ragasa was not as large as Rita was.

Typhoon Ragasa will move through an environment very favorable for intensification during the next 24 hours.  Ragasa will move over water where the Sea Surface Temperatures are near 29°C.  It will move through a region where the upper level winds are weak and there will be little vertical wind shear.  Typhoon Ragasa will intensify during the next 24 hours.  Ragasa could continue to intensify rapidly.  Typhoon Ragasa could strengthen to the equivalent of a Category 5 hurricane on the Saffir-Simpson Scale.

Typhoon Ragasa will move around the southern side of a high pressure system over the Western North Pacific Ocean.  The high pressure system will steer Ragasa toward the west-northwest during the next 24 hours.  On its anticipated track, the center of Typhoon Ragasa will be north of Luzon in 48 hours.

Typhoon Ragasa will bring very strong winds and heavy rain to the Batanes Islands and to the Babuyan Islands.  Ragasa could cause a storm surge of up to 16 feet (5 meters.  Typhoon Ragasa could cause catastrophic damage on those islands.  Typhoon Ragasa will also cause strong winds and heavy rain in northern Luzon.  Heavy rain could cause flash floods in some locations.

Elsewhere over the Western North Pacific Ocean, Typhoon Neoguri continued to strengthen southeast of Japan.  At 11:00 a.m. EDT on Saturday the center of Typhoon Neoguri was located at latitude 26.5°N and longitude 154.5°E which put the center about 1100 miles (1775 km) east-southeast of Tokyo, Japan.  Neoguri was moving toward the west-northwest at 12 m.p.h. (19 km/h).  The maximum sustained wind speed was 110 m.p.h. (175 km/h) and there were wind gusts to 130 m.p.h. (210 km/h).  The minimum surface pressure was 955 mb.

Ragasa Strengthens to Typhoon East of Luzon

Former Tropical Storm Ragasa strengthened to a typhoon over the Western North Pacific Ocean east of northern Luzon on Friday night.  At 11:00 p.m. EDT on Friday the center of Typhoon Ragasa was located at latitude 16.52°N and longitude 129.3°E which put the center about 530 miles (855 km) east of Aparri, Philippines.  Ragasa was moving toward the west-northwest at 5 m.p.h. (8 km/h).  The maximum sustained wind speed was 75 m.p.h. (120 km/h) and there were wind gusts to 90 m.p.h. (145 km/h).  The minimum surface pressure was 985 mb.

Former Tropical Storm Ragasa strengthened to a typhoon east of northern Luzon on Friday night.  The inner end of a rainband wrapped around the center of Ragasa’s circulation.  A small circular eye formed at the center of Typhoon Ragasa.  A ring of thunderstorms surrounded the eye and the strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms were revolving around the center of Typhoon Ragasa.  Storms near the center of Ragasa generated upper level divergence that pumped mass away from the typhoon.  The removal of mass caused the surface pressure to decrease.

The circulation around Typhoon Ragasa was large.  Winds to typhoon force extended out 65 miles (105 km) from the center of Ragasa’s circulation.  Winds to tropical storm force extended out 200 miles (325 km) from the center of Typhoon Ragasa.

Typhoon Ragasa will move through an environment favorable for intensification during the next 24 hours.  Ragasa will move over water where the Sea Surface Temperatures are near 29°C.  It will move through a region where the upper level winds are weak and there will be little vertical wind shear.  Typhoon Ragasa will intensify during the next 24 hours.  Ragasa could intensify rapidly at times.  Typhoon Ragasa is likely to strengthen to the equivalent of a major hurricane during the weekend.

Typhoon Ragasa will move around the southern side of a high pressure system over the Western North Pacific Ocean.  The high pressure system will steer Ragasa toward the west-northwest during the next 24 hours.  On its anticipated track, Typhoon Ragasa will move closer to northern Luzon.  The center of Typhoon Ragasa will be near northern Luzon in 48 hours.

Elsewhere over the Western North Pacific Ocean, former Tropical Storm Neoguri strengthened to a typhoon southeast of Japan.  At 11:00 p.m. EDT on Friday the center of Typhoon Neoguri was located at latitude 25.7°N and longitude 156.4°E which put the center about 1210 miles (1950 km) east-southeast of Tokyo, Japan.  Neoguri was moving toward the west-northwest at 13 m.p.h. (21 km/h).  The maximum sustained wind speed was 80 m.p.h. (130 km/h) and there were wind gusts to 100 m.p.h. (160 km/h).  The minimum surface pressure was 980 mb.

Tropical Storm Mitag Brings Wind and Rain to Southeastern China

Tropical Storm Mitag brought wind and rain to southeastern China on Friday morning.  At 5:00 a.m. EDT on Friday the center of Tropical Storm Mitag was located at latitude 23.0°N and longitude 115.1°E which put the center about 85 miles (135 km) east-northeast of Hong Kong.  Mitag was moving toward the north-northwest at 8 m.p.h. (13 km/h).  The maximum sustained wind speed was 45 m.p.h. (75 km/h) and there were wind gusts to 60 m.p.h. (95 km/h).  The minimum surface pressure was 997 mb.

The center of Tropical Storm Mitag made landfall on the coast of southeastern China east of Hong Kong on Thursday night.  Mitag was bringing wind and rain to parts of Guangdong.

The circulation around Tropical Storm Mitag was small.  Winds to tropical storm force extended out 90 miles (145 km) from the center of Mitag’s circulation.

Tropical Storm Mitag will move around the southern side of a high pressure system over China.  The high pressure system will steer Mitag toward the west during the next 24 hours.  On its anticipated track, Tropical Storm Mitag will move inland over Guangdong.  The center of Mitag’s circulation will pass north of Hong Kong.

Tropical Storm Mitag will weaken gradually as it moves over southern China.  Mitag will continue to bring gusty winds and locally heavy rain to parts of Guangdong during the next 24 hours.  Heavy rain could cause flash floods in some locations.

Elsewhere over the Western North Pacific Ocean, Tropical Storm Ragasa moved slowly toward northern Luzon and Tropical Storm Neoguri strengthened southeast of Japan.

At 5:00 a.m. EDT on Friday the center of Tropical Storm Ragasa was located at latitude 16.2°N and longitude 130.5°E which put the center about 620 miles (1000 km) east of Aparri, Philippines.  Ragasa was moving toward the west at 6 m.p.h. (10 km/h).  The maximum sustained wind speed was 45 m.p.h. (75 km/h) and there were wind gusts to 60 m.p.h. (95 km/h).  The minimum surface pressure was 1000 mb.

At 5:00 a.m. EDT on Friday the center of Tropical Storm Neoguri was located at latitude 24.3°N and longitude 159.8°E which put the center about 1450 miles (2340 km) east-southeast of Tokyo, Japan.  Neoguri was moving toward the west-northwest at 12 m.p.h. (19 km/h).  The maximum sustained wind speed was 60 m.p.h. (95 km/h) and there were wind gusts to 75 m.p.h. (120 km/h).  The minimum surface pressure was 994 mb.

Tropical Storm Mitag Develops Southeast of Hong Kong

Tropical Storm Mitag developed over the South China Sea southeast of Hong Kong on Thursday morning.  At 11:00 a.m. EDT on Thursday the center of Tropical Storm Mitag was located at latitude 20.4°N and longitude 116.5°E which put the center about 225 miles (365 km) southeast of Hong Kong.  Mitag was moving toward the west-northwest at 6 m.p.h. (10 km/h).  The maximum sustained wind speed was 40 m.p.h. (65 km/h) and there were wind gusts to 50 m.p.h. (80 km/h).  The minimum surface pressure was 1002 mb.

A low pressure system over the South China Sea southeast of Hong Kong strengthened on Thursday morning and the Japan Meteorological Agency  designated the system as Tropical Storm Mitag.

The circulation around Tropical Storm Mitag continued to get better organized on Thursday morning.  More thunderstorms formed near the center of Mitag’s circulation.  Thunderstorms also developed in bands in the eastern side of Tropical Storm Mitag.  Bands in the western side of Mitag’s circulation still consisted primarily of showers and lower clouds.

The strongest winds were occurring in the eastern side of Tropical Storm Mitag.  Winds to tropical storm force extended out 80 miles (130 km) in the eastern side of Mitag’s circulation.  The winds in the western side of Tropical Storm Mitag were blowing at less than tropical storm force.

Tropical Storm Mitag will move through an environment favorable for intensification during the next 24 hours.  Mitag will move over water where the Sea Surface Temperatures are near 29°C.  It will move under the middle of an upper level ridge over eastern China and the South China Sea.  The upper level winds are weak near the middle of the ridge and there will be little vertical wind shear.  Tropical Storm Mitag will intensity during the next 24 hours.

Tropical Storm Mitag will move around the southwestern part of a high pressure system over the Western North Pacific Ocean.  The high pressure system will steer Mitag toward the northwest during the next 24 hours.  On its anticipated track, Tropical Storm Mitag will be near Hong Kong in 24 hours.

Tropical Storm Mitag will bring strong winds and locally heavy rain to the region around Hong Kong.  Heavy rain could cause flash floods in some locations.

Elsewhere over the Western North Pacific Ocean, Tropical Storm Ragasa formed east of Luzon and Tropical Storm Neoguri formed southeast of Japan.

At 11:00 a.m. EDT on Thursday the center of Tropical Storm Ragasa was located at latitude 16.0°N and longitude 132.7°E which put the center about 755 miles (1220 km) east of Aparri, Philippines.  Ragasa was moving toward the northwest at 5 m.p.h. (8 km/h).  The maximum sustained wind speed was 40 m.p.h. (65 km/h) and there were wind gusts to 50 m.p.h. (80 km/h).  The minimum surface pressure was 1003 mb.

At 11:00 a.m. EDT on Thursday the center of Tropical Storm Neoguri was located at latitude 23.1°N and longitude 162.5°E which put the center about 1630 miles (2630 km) east-southeast of Tokyo, Japan.  Neoguri was moving toward the west-southwest at 13 m.p.h. (21 km/h).  The maximum sustained wind speed was 40 m.p.h. (65 km/h) and there were wind gusts to 50 m.p.h. (80 km/h).  The minimum surface pressure was 1003 mb.

Tropical Storm Wipha Passes Near Northern Luzon

The center of Tropical Storm Wipha passed just to the north of northern Luzon on Friday.  At 11:00 a.m. EDT on Friday the center of Tropical Storm Wipha was located at latitude 19.6°N and longitude 122.0°E which put the center about 80 miles (130 km) north-northeast of Aparri, Philippines.  Wipha was moving toward the northwest at 13 m.p.h. (21 km/h).  The maximum sustained wind speed was 40 m.p.h. (65 km/h) and there were wind gusts to 50 m.p.h. (80 km/h).  The minimum surface pressure was 991 mb.

The center of Tropical Storm Wipha was passing between northern Luzon and Taiwan on Friday.  More thunderstorms formed near the center of Wipha’s circulation on Friday.  Numerous bands of showers and thunderstorms were revolving around the center of Tropical Storm Wipha.  Storms near the center of Wipha generated upper level divergence that pumped mass away to the south and west of the tropical storm.  The removal of mass caused the surface pressure to decrease.

The circulation around Tropical Storm Wipha was very large.  Winds to tropical storm force extended out 205 miles (330 km) from the center of Wipha’s circulation.

Tropical Storm Wipha will move through an environment favorable for intensification during the next 24 hours.  Wipha will move over water where the Sea Surface Temperatures are near 29°C.  It will move under the southern side of an upper level ridge that is north of the Philippines.  The upper level ridge will produce easterly winds that will blow toward the top of Wipha’s circulation.  Those winds will cause some vertical wind shear, but the wind shear will not be enough to prevent intensification.  Tropical Storm Wipha will intensify during the next 24 hours.  Wipha could strengthen to a typhoon during the weekend.

Tropical Storm Wipha will move around the southwestern part of a high pressure system over the Western North Pacific Ocean.  The high pressure system will steer Wipha toward the west-northwest during the next 24 hours.  On its anticipated track, Tropical Storm Wipha could approach Hong Kong in 36 hours.

Tropical Storm Wipha will produce gusty winds and locally heavy rain in northern Luzon and southern Taiwan during the rest of today.  Heavy rain could produce flash floods in some locations.

Typhoon Usagi Hits Northern Luzon

Typhoon Usagi hit northern Luzon on Wednesday night.  At 10:00 p.m. EST on Wednesday the center of Typhoon Usagi was located at latitude 17.6°N and longitude 122.7°E which put the center about 1205 miles (195 km) southeast of Aparri, Philippines.  Usagi was moving toward the northwest at 14 m.p.h. (22 km/h). The maximum sustained wind speed was 150 m.p.h. (240 km/h) and there were wind gusts to 185 m.p.h. (295 km/h).  The minimum surface pressure was 915 mb.

Typhoon Usagi rapidly intensified to the equivalent of a Category 4 hurricane on the Saffir-Simpson Scale east of Luzon on Wednesday.  A small circular eye with a diameter of 5 miles (8 km) was at the center of Usagi’s circulation.  The eye was surrounded by a ring of thunderstorms and the strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms revolved around the core of Typhoon Usagi.  Storms near the core of Usagi generated strong upper level divergence that pumped large quantities of mass away from the typhoon in all directions.  The removal of large amounts of mass caused the surface pressure to decrease rapidly.  The inner end of a rainband wrapped around the existing eye and eyewall at the center of Usagi’s circulation during Wednesday evening and concentric eyewalls could be forming.

The circulation around Typhoon Usagi was small.  Winds to typhoon force extended out 30 miles (50 km) from the center of Usagi’s circulation.  Winds to tropical storm force extended out 85 miles (135 km) from the center of Typhoon Usagi.

The Hurricane Intensity Index (HII) for Typhoon Usagi was 31.6.  The Hurricane Size Index (HSI) was 9.4 and the Hurricane Wind Intensity Size Index (HWISI) was 41.0 . Typhoon Usagi was similar in size to Hurricane Ida when Ida hit Louisiana in 2021.  Usagi was not as big as Ida was.

Typhoon Usagi will move around the southern side of a high pressure system over the Western North Pacific Ocean.  The high pressure system will steer Usagi toward the northwest during the next 24 hours.  On its anticipated track, the center of Typhoon Usagi will move across northeast Luzon during the next few hours.

Typhoon Usagi will bring strong winds and heavy rain to northern Luzon.  Heavy rain could cause flash floods and mudslides in some locations.  Usagi could cause a storm surge of up to 13 feet ( 4 meters) on the coast of northeastern Luzon.  The area likely to be hit by Usagi was just hit by Typhoon Toraji a few days ago.  Typhoon Usagi will complicate recovery efforts in Luzon.

Elsewhere over the Western North Pacific Ocean, former Tropical Storm Toraji weakened to a tropical depression south of Hong Kong, and Tropical Storm Man-yi was moved north of Yap.

At 10:00 p.m. EST on Wednesday the center of Tropical Depression Toraji was located at latitude 21.0°N and longitude 113.9°E which put the center about 90 miles (145 km) south of Hong Kong.  Toraji was moving toward the west-southwest at 5 m.p.h. (8 km/h).  The maximum sustained wind speed was 35 m.p.h. (55 km/h) and there were wind gusts to 45 m.p.h. (75 km/h).  The minimum surface pressure was 1005 mb.

At 10:00 p.m. EST on Wednesday the center of Tropical Storm Man-yi was located at latitude 11.1°N and longitude 137.0°E which put the center about 120 miles (195 km) north of Yap. Man-yi was moving toward the west-southwest at 20 m.p.h. (32 km/h).  The maximum sustained wind speed was 50 m.p.h. (80 km/h) and there were wind gusts to 65 m.p.h. (105 km/h). The minimum surface pressure was 1000 mb.

Typhoon Usagi Rapidly Intensifies to Equivalent of a Major Hurricane

Typhoon Usagi rapidly intensified to the equivalent of a major hurricane over the Western North Pacific Ocean east of Luzon on Wednesday.  At 10:00 a.m. EST on Wednesday the center of Typhoon Usagi was located at latitude 16.5°N and longitude 124.8°E which put the center about 485 miles (780 km) east-southeast of Aparri, Philippines.  Usagi was moving toward the west-northwest at 15 m.p.h. (24 km/h).  The maximum sustained wind speed was 130 m.p.h. (210 km/h) and there were wind gusts to 160 m.p.h. (260 km/h).  The minimum surface pressure was 949 mb.

Typhoon Usagi rapidly intensified to the equivalent of a Category 4 hurricane on the Saffir-Simpson Scale east of Luzon on Wednesday.  A small circular eye with a diameter of 5 miles (8 km) formed at the center of Usagi’s circulation.  The eye was surrounded by a ring of thunderstorms and the strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms revolved around the core of Typhoon Usagi.  Storms near the core of Usagi generated strong upper level divergence that pumped large quantities of mass away from the typhoon in all directions.  The removal of large amounts of mass caused the surface pressure to decrease rapidly.

The circulation around Typhoon Usagi was small.  Winds to typhoon force extended out 30 miles (50 km) from the center of Usagi’s circulation.  Winds to tropical storm force extended out 80 miles (130 km) from the center of Typhoon Usagi.

The Hurricane Intensity Index (HII) for Typhoon Usagi was 25.1.  The Hurricane Size Index (HSI) was 9.4 and the Hurricane Wind Intensity Size Index (HWISI) was 34.5.  Typhoon Usagi was similar in size to Hurricane Harvey when Harvey hit Texas in 2017.  Usagi was not as big as Harvey was.

Typhoon Usagi will move through an environment favorable for intensification during the next 24 hours.  Usagi will move over water where the Sea Surface Temperatures are near 30°C.  It will move under the axis of an upper level ridge over the Western North Pacific Ocean.  The upper level winds are weak near the axis of the ridge and there will be little vertical wind shear.  Typhoon Usagi could continue to intensify during the next 24 hours.  However, since the core of Usagi’s circulation is so small, the inner end of a rainband could wrap around the core.  If concentric eyewalls form, an eyewall replacement cycle would halt the intensification of Typhoon Usagi.

Typhoon Usagi will move around the southern side of a high pressure system over the Western North Pacific Ocean.  The high pressure system will steer Usagi toward the west-northwest during the next 24 hours.  On its anticipated track, the center of Typhoon Usagi will move near northeast Luzon in 18 hours.

Typhoon Usagi will bring strong winds and heavy rain to northern Luzon.  Heavy rain could cause flash floods and mudslides in some locations.  Usagi could cause a storm surge of up to 13 feet ( 4 meters) on the coast of northeastern Luzon.  The area likely to be hit by Usagi was just hit by Typhoon Toraji a few days ago.  Typhoon Usagi will complicate recovery efforts in Luzon.

Elsewhere over the Western North Pacific Ocean, Tropical Storm Toraji was approaching the coast of China east of Hong Kong, and Tropical Storm Man-yi was moving away from the Marianas.

At 10:00 a.m. EST on Wednesday the center of Tropical Storm Toraji was located at latitude 21.9°N and longitude 114.9°E which put the center about 65 miles (105 km) east-southeast of Hong Kong.  Toraji was moving toward the north at 14 m.p.h. (22 km/h).  The maximum sustained wind speed was 50 m.p.h. (80 km/h) and there were wind gusts to 65 m.p.h. (105 km/h).  The minimum surface pressure was 995 mb.

At 10:00 a.m. EST on Wednesday the center of Tropical Storm Man-yi was located at latitude 11.7°N and longitude 140.4°E which put the center about 280 miles (450 km) west-southwest of Guam.  Man-yi was moving toward the west-southwest at 16 m.p.h. (26 km/h).  The maximum sustained wind speed was 40 m.p.h. (65 km/h) and there were wind gusts to 50 m.p.h. (80 km/h).  The minimum surface pressure was 1002 mb.

Powerful Typhoon Yinxing Brings Wind and Rain to Northern Luzon

Power Typhoon Yinxing was bringing wind and rain to northern Luzon on Thursday.  At 7:00 a.m. EST on Thursday the center of Typhoon Yinxing was located at latitude 18.5°N and longitude 122.0°E which put the center about 35 miles (55 km) northeast of Aparri, Philippines.  Yinxing was moving toward the west at 8 m.p.h. (13 km/h).  The maximum sustained wind speed was 145 m.p.h. (230 km/h) and there were wind gusts to 175 m.p.h. (280 km/h).  The minimum surface pressure was 937 mb.

The eye of powerful Typhoon Yinxing was just north of the coast of northern Luzon on Thursday morning.  The eye had a diameter of  23 miles (37 km).  A ring of thunderstorms surrounded the eye and the strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms were revolving around the core of Typhoon Yinxing.  Storms near the core of Yinxing generated strong upper level divergence that pumped large amounts of mass away from the typhoon.  The removal of large amounts of mass in the upper level slightly exceed the inflow of mass in the lower levels of the atmosphere, which caused the surface pressure to decrease.

The circulation around Typhoon Yinxing was large.  Winds to typhoon force extended out 50 miles (80 km) from the center of Yinxing’s circulation.  Winds to tropical storm force extended out 200 miles (325 km) from the center of Typhoon Yinxing.

The Hurricane Intensity Index (HII) for Typhoon Yinxing was 29.9.  The Hurricane Size Index (HSI) was 19.7 and the Hurricane Wind Intensity Size Index (HWISI) was 49.6.  Typhoon Yinxing was similar in size and intensity to Hurricane Laura when Laura hit southwest Louisiana in 2020.

Typhoon Yinxing will move through an environment favorable for intensification during the next 12 hours.  Yinxing will move over water where the Sea Surface Temperatures are near 30°C.  It will move under axis of an upper level ridge over the Western North Pacific Ocean.  The upper level winds are weak near the axis of the ridge and there will be little vertical wind shear.  Even though Typhoon Yinxing will move through an environment favorable for intensification, much of the southern half of Yingxing’s circulation, including the southern side of the eyewall, will move across northern Luzon.  Since almost half of Yinxing’s circulation will move over land Typhoon Yinxing will weaken during the next 24 hours.

Typhoon Yinxing will move around the southern part of a high pressure system over the Western North Pacific Ocean . The high pressure system will steer Yinxing toward the west during the next 24 hours.  On its anticipated track, Typhoon Yinxing will move near the north coast of Luzon during the next 24 hours.

Typhoon Yinxing will continue to bring strong, gusty winds and heavy rain to northern Luzon during the next 24 hours.  Heavy rain will cause flash floods and mudslides.  Yinxing will cause widespread power outages.  Typhoon Yinxing could cause a storm surge of up to 10 feet (3 meters) along the coast of northern Luzon.  Yinxing will be capable of causing regional severe damage.

Typhoon Yinxing Intensifies to Equivalent of a Major Hurricane

Typhoon Yinxing intensified to the equivalent of a major hurricane over the Western North Pacific Ocean east of northern Luzon on Wednesday morning.  At 10:00 a.m. EST on Wednesday the center of Typhoon Yinxing was located at latitude 18.2°N and longitude 123.7°E which put the center about 135 miles (220 km) east of Aparri, Philippines.  Yinxing was moving toward the west at 5 m.p.h. (8 km/h).  The maximum sustained wind speed was 115 m.p.h. (185 km/h) and there were wind gusts to 145 m.p.h. (235 km/h).  The minimum surface pressure was 958 mb.

Typhoon Yinxing intensified to the equivalent of a major hurricane east of Luzon on Wednesday morning.  A circular eye was at the center of Yinxing’s circulation.  A ring of thunderstorms surrounded the eye and the strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms were revolving around the core of Typhoon Yinxing.  Storms near the core generated upper level divergence that pumped mass away from the typhoon.  The removal of mass caused the surface pressure to decrease.

The circulation around Typhoon Yinxing was large.  Winds to typhoon force extended out 40 miles from the center of Yinxing’s circulation.  Winds to tropical storm force extended out 215 miles (345 km) from the center of Typhoon Yinxing.

The Hurricane Intensity Index (HII) for Typhoon Yinxing was 20.6.  The Hurricane Size Index (HSI) was 13.6 and the Hurricane Wind Intensity Size Index (HWISI) was 34.2.  Typhoon Yinxing was similar in size and intensity to Hurricane Delta when Delta hit Louisiana in 2020.

Typhoon Yinxing will move through an environment favorable for intensification during the next 12 hours.  Yinxing will move over water where the Sea Surface Temperatures are near 30°C.  It will move under axis of an upper level ridge over the Western North Pacific Ocean.  The upper level winds are weak near the axis of the ridge and there will be little vertical wind shear.  Typhoon Yinxing will intensify during the next 12 hours.

Typhoon Yinxing will move around the southern part of a high pressure system over the Western North Pacific Ocean.  The high pressure system will steer Yinxing toward the west during the next 24 hours.  On its anticipated track, Typhoon Yinxing will reach northern Luzon in 18 hours.

Typhoon Yinxing will bring strong, gusty winds and heavy rain to northern Luzon.  Heavy rain will cause flash floods and mudslides.  Yinxing will cause widespread power outages.  Typhoon Yinxing could cause a storm surge of up to 10 feet (3 meters) along the coast of northern Luzon.  Yinxing will be capable of causing regional major damage.