Tag Archives: Agrihan

Typhoon Hagibis Rapidly Intensifies Into Equivalent of Major Hurricane

Typhoon Hagibis rapidly intensified into the equivalent of a major hurricane east of the Marianas on Sunday night.  At 11:00 p.m. EDT on Sunday the cener of Typhoon Hagibis was located at latitude 15.3°N and longitude 148.8°E which put it about 320 miles (515 km) east-northeast of Guam.  Hagibis was moving toward the west-northwest at 19 m.p.h. (31 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. (230 km/h).  The minimum surface pressure was 953 mb.

Typhoon Warnings were in effect for Tinian, Saipan, Alamagan and Pagan.  Tropical Storm Warnings were in effect for Rota and Agrihan.  A Tropical Storm Watch was in effect for Guam.

Typhoon Hagibis intensified very rapidly on Sunday night.  The maximum sustained wind speed increased from 75 m.p.h. (120 km/h) to 115 m.p.h. (185 km/h) in six hours.  A small circular eye formed at the center of Hagibis and a ring of strong thunderstorms surrounded the eye.  The strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms were revolving around the core of the typhoon.  Storms near the core were generating strong upper level divergence which was pumping mass away in all directions.  The removal of mass was allowing the minimum surface pressure to decrease rapidly.

The circulation around Typhoon Hagibis was increasing in size.  Winds to typhoon force extended out 50 miles (80 km) from the center of circulation.  Winds to tropical storm force extended out 175 miles (280 km) from the center.  The Hurricane Intensity Index (HII) for Typhoon Hagibis was 20.2.  The Hurricane Size Index (HSI) was 18.1 and the Hurricane Wind intensity Size Index (HWISI) was 38,3,  Typhoon Hagibis was capable of causing major damage.

Typhoon Hagibis will continue to move through an environment very favorable for intensification for another 24 to 36 hours.  Hagibis will move over water where the Sea Surface Temperature is near 30°C.  It will move through a region where the upper level winds are weak and there will be little vertical wind shear.  Typhoon Hagibis could continue to intensify rapidly and it could strengthen into the equivalent of a Category 5 hurricane on the Saffir-Simpson Scale during the next 24 hours.  At some point a rainband is likely to wrap around the existing eye and eyewall and an eyewall replacement cycle will end the intensification of Typhoon Hagibis.

Typhoon Hagibis will move around the southwestern part of a subtropical high pressure system over the Western North Pacific Ocean.  The high will steer Hagibis toward the west-northwest during the next 12 to 24 hours.  Hagibis will turn more toward the northwest in a day or so.  On its anticipated track Typhoon Hagibis will reach the Marianas in about 12 hours.  The center of Hagibis is likely to pass north of Saipan.  Typhoon Hagibis will bring strong winds and heavy rain.  It will be capable of causing major damage to the Northern Marianas.  Typhoon Hagibis could approach southwestern Japan in four or five days.

Hagibis Strengthens to a Typhoon, Warnings Issued for Marianas

Former Tropical Storm Hagibis strengthened into a typhoon Sunday and warnings were issued for the Marianas.  At 5:00 p.m. EDT on Sunday the center of Typhoon Hagibis was located at latitude 15.1°N and longitude 150.3°E which put it about 425 miles (685 km) east-northeast of Guam.  Hagibis was moving toward the west-northwest at 16 m.p.h. (26 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 978 mb.

Typhoon Warnings were in effect for Tinian, Saipan, Alamagan and Pagan.  Tropical Storm Warnings were in effect for Rota and Agrihan.  A Tropical Storm Watch was in effect for Guam.

Typhoon Hagibis exhibited much better organization on satellite images on Sunday.  The inner end of a rainband wrapped almost entirely around the center of circulation and an eye was forming in the middle of Hagibis.  Other bands of showers and thunderstorms were revolving around the core of Typhoon Hagibis.  Storms near the core were generating strong upper level divergence which was pumping mass away from the typhoon in all directions.  Winds to typhoon force extend out 30 miles (50 km) from the center of circulation.  Winds to tropical storm force extended out 145 miles (230 km) from the center.

Typhoon Hagibis will move through an environment very favorable for intensification during the next 48 to 72 hours.  Hagibis will move over water where the Sea Surface Temperature is near 30°C.  It will move through a region where the upper level winds are weak and there will be little vertical wind shear.  Typhoon Hagibis will continue to intensify and it is likely to intensify rapidly once the eye and eyewall are fully developed.  Hagibis could strengthen into the equivalent of a major hurricane within 36 hours and it could intensify to the equivalent of a Category 5 hurricane on the Saffir-Simpson Scale within 72 hours.

Typhoon Hagibis will move around the southwestern portion of a subtropical ridge over the Western North Pacific Ocean.  The ridge will steer Hagibis toward the west-northwest during the next 24 to 48 hours.  Typhoon Hagibis will move more toward the northwest when it gets closer to western end of the ridge in a couple of days.  On its anticipated track Typhoon Hagibis will move through the Marianas in about 24 hours.  The center of Hagibis is forecast to pass north of Saipan.  Typhoon Hagibis will bring strong gusty winds and heavy rain to portions of the Northern Marianas.

Typhoon Wutip Strengthens to Equivalent of a Major Hurricane South of Guam

Typhoon Wutip strengthened into the equivalent of a major hurricane south of Guam on Friday.  At 10:00 a.m. EST on Friday the center of Typhoon Wutip was located at latitude 10.1°N and longitude 144.7°E which put it about 240 miles (385 km) south of Guam.  Wutip was moving toward the northwest at 15 m.p.h. (24 km/h).  The maximum sustained wind speed was 120 m.p.h. (195 km/h) and there were wind gusts to 150 m.p.h. (240 km/h).  The minimum surface pressure was 949 mb.

Tropical Storm Warnings were in effect for Guam, Rota and Faraulep.  Tropical Storm Watches have been issued for Tinian, Saipan, Agrihan and Pagan.

Typhoon Wutip was a very well organized tropical cyclone.  A small eye was at the center of circulation.  The eye was surrounded by a ring of strong thunderstorms and the strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms were revolving around the core of Typhoon Wutip.  Storms near the core were generating upper level divergence which was pumping mass away from the typhoon.

Typhoon Wutip had a large circulation.  Winds to typhoon force extended out about 45 miles (75 km) from the center of circulation.  Winds to tropical storm force extended out about 185 miles (295 km) from the center.  The Hurricane Intensity Index (HII) for Typhoon Wutip was 22.1.  The Hurricane Size Index (HSI) was 17.3 and The Hurricane Wind Intensity Size Index (HWISI) was 39.4.  Typhoon Wutip was capable of causing major damage.

Typhoon Wutip may be near its peak intensity.  Wutip will move over water where the Sea Surface Temperature is near 29°C.  So, there is enough energy in the upper ocean to support a strong typhoon.  Typhoon Wutip has been in an area where the upper level winds were weak and there was little vertical wind shear.  The shear will remain small for another 12 to 24 hours.  Then an upper level trough will approach Typhoon Wutip from the west in a day or so.  The trough will bring southwesterly winds and the vertical wind shear will increase.  Wutip will start to weaken when the shear increases.

Typhoon Wutip will move around the western end of a subtropical ridge over the Western North Pacific Ocean.  Wutip will gradually turn more toward the north while it moves around the end of the ridge.  On its anticipated track the core of Typhoon Wutip will pass west of Guam and the Northern Marianas.  Wutip could bring winds to tropical storm force to Guam and some of the other islands, which is why the warnings and watches were issued.

Dangerous Typhoon Yutu Slams Tinian and Saipan

Dangerous Typhoon Yutu slammed Tinian and Saipan on Wednesday.  At 5:00 p.m. EDT on Wednesday the center of Typhoon Yutu was located at latitude 15.5°N and longitude 144.8°E which put it about 35 miles (55 km) west-northwest of Saipan.  Yutu was moving toward the northwest at 13 m.p.h. (20 km/h).  The maximum sustained wind speed was 175 m.p.h. (280 km/h) and there were wind gusts to 205 m.p.h. (330 km/h).  The minimum surface pressure was 908 mb.

Typhoon Warnings were in effect for Rota, Tinian and Saipan.  Tropical Storm Warnings were in effect for Guam, Alamagan, Pagan and Agrihan.

The eye of Typhoon Yutu passed directly over Tinian on Wednesday and the northern side of the eyewall moved over Saipan.  So, they would have experienced the strongest parts of Typhoon Yutu.  The Hurricane Intensity Index (HII) for Typhoon Yutu is 40.4.  The Hurricane Size Index (HSI) is 26.7 and the Hurricane Wind Intensity Size Index (HWISI) is 67.1.  Typhoon Yutu was capable of causing widespread catastrophic damage when it passed over Tinian and Saipan.

Yutu is still a very powerful typhoon, but an eyewall replacement cycle appears to have started.  A rainband has wrapped around the original eye and eyewall.  The inner eye and eyewall are still intact and the strongest winds are occurring in the ring of thunderstorms that surround the original eye.  The imminent formation of a second, outer eyewall increased the size of the circulation around Typhoon Yutu.  Winds to typhoon force extend out about 70 miles (110 km) from the center of circulation.  Winds to tropical storm force extend out about 240 miles (390 km) from the center.

Typhoon Yutu will remain in an environment capable of supporting a very strong typhoon for several more days.  Yutu will move over water where the Sea Surface Temperature is near 31°C.  It will move through a region where the upper level winds are weak and there will be little vertical wind shear.  The incipient eyewall replacement cycle will cause Typhoon Yutu to weaken when the inner eyewall dissipates.  However, Yutu could strengthen again, if it remains in a favorable environment and the outer eyewall contracts closer to the center of circulation.  Typhoon Yutu is likely to remain a powerful typhoon during the next 48 hours.

Typhoon Yutu will move southwest of a ridge of high pressure over the Western North Pacific Ocean.  The ridge will steer Yutu toward the west-northwest during the next several days.  On its anticipated track Typhoon Yutu will move away from the Northern Marianas, and conditions should gradually improve there.  Yutu could be south of Okinawa in four or five days.

Typhoon Yutu Intensifies Rapidly to Equivalent of Cat. 4 Hurricane, Imminent Threat to Marianas

Typhoon Yutu intensified rapidly on Tuesday into the equivalent of a Category 4 hurricane on the Saffir-Simpson Scale and Yutu posed an imminent threat to the Marianas.  At 11:00 p.m. EDT on Tuesday the center of Typhoon Yutu was located at latitude 13.6°N and longitude 147.5°E which put it about 155 miles (255 km) east-southeast of Rota.  Yutu 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 935 mb.

Typhoon Warnings are in effect for Rota, Saipan and Tinian.  Tropical Storm Warnings are in effect for Guam, Alamagan, Pagan and Agrihan.

Typhoon Yutu intensified rapidly during the past 24 hours.  A circular eye developed at the center of Yutu.  The eye is surrounded by a ring of strong thunderstorms and the strongest winds were occurring in that ring of storms.  Numerous bands of showers and thunderstorms were revolving around the core of Typhoon Yutu.  Storms near the core were generating strong upper level divergence which was pumping mass away from the typhoon in all directions.  The removal of mass allowed the surface pressure to decrease rapidly.

Typhoon Yutu has a large circulation.  Winds to typhoon force extend out about 65 miles (105 km) from the center of circulation.  Winds to tropical storm force extend out about 210 miles (335 km) from the center.  The Hurricane Intensity Index (HII) for Typhoon Yutu is 31.6.  The Hurricane Size Index (HSI) is 20.8 and the Hurricane Wind Intensity Size index (HWISI) is 52.4.  Typhoon Yutu is capable of causing widespread extensive damage.

Typhoon Yutu will move through an environment favorable for further intensification during the next several days.  Yutu will move over water where the Sea Surface Temperature is near 31°C.  It will move through a region where the upper level winds are weak and there is little vertical wind shear.  Typhoon Yutu could intensify into the equivalent of a Category 5 hurricane on the Saffir-Simpson Scale.  At some point a rainband will wrap around the existing eye and eyewall, and an eyewall replacement cycle will occur.  Yutu will weaken during the eyewall replacement cycle, but the typhoon could strengthen afterwards if it remains in an environment favorable for intensification.

Typhoon Yutu will move around the southwestern portion of a ridge of high pressure over the Western North Pacific Ocean.  The ridge will steer Yutu in a general west-northwesterly direction.  On its anticipated track Typhoon Yutu will reach the Northern Marianas in about 12 hours.  The core of Yutu will pass between Rota and Tinian.  Rota, Tinian and Saipan are likly to have winds to typhoon force.  Typhoon Yutu will be capable of causing extensive damage in those locations.  Guam, Alamagan, Pagan and Agrihan are likely to receive winds to tropical storm force.  Wind speeds will be stronger on the northern part of Guam and the damage potential is greater there than it is for the southern part of Guam.

Typhoon Jebi Hits Northern Marianas

Typhoon Jebi hit the Northern Mariana Islands on Thursday.  At 11:00 a.m. EDT on Thursday the center of Typhoon Jebi was located at latitude 17.8°N and longitude 146.2°E which put it about 35 miles (55 km) east-southeast of Pagan.  Jebi was moving toward the west at 14 m.p.h. (22 km/h).  The maximum sustained wind speed was 125 m.p.h. (205 km/h) and there were wind gusts to 155 m.p.h. (230 km/h).  The minimum surface pressure was 940 mb.  A Typhoon Warning was in effect for Agrihan, Pagan and Alamagan.

Typhoon Jebi was very well organized.  There was a small eye at the center of circulation.  The eye was surrounded by a ring of strong thunderstorms and the strongest winds were occurring in that ring of storms.  Bands of showers and thunderstorms were revolving around the core of Typhoon Jebi.  Storms near the core were generating strong upper level divergence which was pumping mass away from the typhoon.

Winds to typhoon force extended out about 50 miles (80 km) from the center of circulation.  Winds to tropical storm force extended out about 185 miles (295 km) from the center.  The Hurricane Intensity Index (HII) for Typhoon Jebi was 23.6.  The Hurricane Size Index (HSI) was 19.4 and the Hurricane Wind Intensity Size Index (HWISI) was 43.0.  Those indices indicate that Typhoon Jebi was capable of causing major damage.

Typhoon Jebi will be moving through an environment favorable for intensification during the next day or so.  Jebi will move over water where the Sea Surface Temperature is near 29°C.  It will move through a region where the upper level winds are weak and there is little vertical wind shear.  Typhoon Jebi is forecast to intensify during the next 24 hours.  If an outer rainband wraps around the existing eye and eyewall, then an eyewall replacement cycle could cause the typhoon to weaken at least temporarily.

Typhoon Jebi will move around the western end of a subtropical ridge over the Western North Pacific Ocean.  Jebi will make a gradual turn toward the north during the next few days while it moves around the end of the ridge.  On its anticipated track Typhoon Jebi will move slowly away from the Northern Marianas.  Weather conditions should slowly improve when Jebi moves away.  The center of Jebi is forecast to pass south of Iwo To.  Typhoon Jebi could approach Honshu in four or five days.

Typhoon Jebi Intensifies Rapidly East of Northern Marianas

Typhoon Jebi intensified rapidly east of the Northern Marianas on Wednesday.  At 5:00 p.m. EDT on Wednesday the center of Typhoon Jebi was located at latitude 17.5°N and longitude 149.8°E which put it about 270 miles (435 km) east of Pagan.  Jebi was moving toward the west at 12 m.p.h. (19 km/h).  The maximum sustained wind speed was 105 m.p.h. (170 km/h) and there were wind gusts to 125 m.p.h. (205 km/h).  The minimum surface pressure was 959 mb.  A Typhoon Warning was in effect for Agrihan, Pagan and Alamagan in the Northern Marianas.

The circulation of Typhoon Jebi was very well organized and it was symmetrical.  A small circular eye formed at the center of circulation.  A ring of strong thunderstorms surrounded the eye and the strongest winds were occurring in that ring of storms.  Several bands of thunderstorms were revolving around the core of Typhoon Jebi.  Storms around the core were generating strong upper level divergence which was pumping large quantities of mass away from the typhoon.  Winds to typhoon force extended out about 25 miles (40 km) from the center of circulation.  Winds to tropical storm force extended out about 100 miles (160 km) from the center.

Typhoon Jebi will be moving through an environment very favorable for further intensification.  Jebi will move over water where the Sea Surface Temperature is near 29°C.  It will move through a region where the upper level winds are weak and there will be little vertical wind shear.  Jebi is likely to intensify into the equivalent of a major hurricane on Thursday.

Typhoon Jebi will move south of a subtropical ridge over the Western North Pacific for several more days.  The ridge will steer Jebi in a general westerly direction during that time.  Typhoon Jebi will reach the western end of the ridge in about 48 hours.  Jebi will make a gradual turn toward the north when it reaches the end of the ridge.  On its anticipated track Typhoon Jebi will reach the northernmost Mariana Islands within 24 hours.  Jebi will be capable of causing major damage when it arrives.  Jebi is forecast to pass south of Iwo To, but it will turn toward the major islands of Japan during the weekend.

Large Typhoon Soulik Nears Ryukyu Islands, Cimaron Brushes Northern Marianas

Large Typhoon Soulik neared the Ryukyu Islands on Monday night, while Typhoon Cimaron brushed the Northern Mariana Islands.  At 11:00 p.m. EDT on Monday the center of Typhoon Soulik was located at latitude 28.0°N and longitude 131.7°E which put it about 160 miles (260 km) south-southeast of Yaku Shima, Japan.  Soulik was moving toward the northwest at 14 m.p.h. (22 km/h).  The maximum sustained wind speed was 115 m.p.h. (185 km/h) and there were wind gusts to 135 m.p.h. (215 km/h).  The minimum surface pressure was 952 mb.

A large circular eye with a diameter of 50 miles (80 km) developed at the center of Typhoon Soulik.  The eye was surrounded by a ring of strong thunderstorms and the strongest winds were occurring in the ring of storms.  Several bands of showers and thunderstorms were revolving around the core of Typhoon Soulik.  The strongest rainbands were occurring in the eastern half of the circulation.  Winds around the core Soulik were generating strong upper level divergence which was pumping mass away from the typhoon.

Typhoon Soulik has a large circulation.  Winds to typhoon force extend out about 70 miles (110 km) from the center of circulation.  Winds to tropical storm force extend out about 230 miles (370 km) from the center.  The Hurricane Intensity Index (HII) for Typhoon Soulik was 20.6.  The Hurricane Size Index (HSI) was 23.5 and the Hurricane Wind Intensity Size Index (HWISI) was 44.1.

The large symmetrical structure of Typhoon Soulik will allow it to maintain its intensity for a longer period than a smaller tropical cyclone.  Soulik will move through an environment during the next 24 to 36 hours that will support a strong typhoon.  It will move over water where the Sea Surface Temperature is near 28°C.  It will move through an environment where the vertical wind shear will not be too strong.

Typhoon Soulik will move around the western end of ridge centered north of Japan.  The ridge will steer Soulik toward the northwest for another 24 to 36 hours.  On its anticipated track Typhoon Soulik will move over the northern Ryukyu Islands on Tuesday.  Soulik could approach South Korea within 36 hours.

Typhoon Cimaron brushed the northernmost Mariana Islands on Monday.  At 11:00 p.m. EDT on Monday the center of Typhoon Cimaron was located at latitude 20.5°N and longitude 144.5°E which put it about 90 miles (145 km) north-northwest of Agrihan.  Cimaron was moving toward the west-northwest at 14 m.p.h. (22 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 978 mb.

Typhoon Cimaron is forecast to be near Iwo To in about 24 hours.  Cimaron could approach Honshu within 48 hours.  Upper level divergence from Typhoon Soulik is inhibiting the divergence on the western side of Cimaron.  The effects of Soulik will reduce the potential intensification of Typhoon Cimaron, but Cimaron could strengthen slowly during the next day or two.

Typhoon Soulik Moves Toward Ryukyu Islands, Cimaron Approaches Northern Marianas

Typhoon Soulik moved toward the northern Ryukyu Islands on Sunday and Typhoon Cimaron approached the Northern Mariana Islands.  At 11:00 p.m. EDT on Sunday the center of Typhoon Soulik was located at latitude 25.9°N and longitude 135.8°E which put it about 450 miles (730 km) east-southeast of Yaku Shima.  Soulik was moving toward the west at 12 m.p.h. (19 km/h).  The maximum sustained wind speed was 105 m.p.h. (170 km/h) and there were wind gusts to 125 m.p.h. (205 km/h).  The minimum surface pressure was 959 mb.

The structure of Typhoon Soulik changed on Sunday.  A large circular eye with a diameter or 45 miles (75 km) developed at the center of circulation.  A circular ring of thunderstorms surrounded the eye.  The ring was thinner on the western side of the eye and there may have been breaks in the ring.  Several bands of thunderstorms were revolving around the core of Typhoon Soulik.  Storms around the core were generating strong upper level divergence which was pumping mass away from the typhoon.  Winds to typhoon force extended out about 45 miles (75 km) from the center of circulation.  Winds to tropical storm force extended out about 195 miles (315 km) from the center.

Typhoon Soulik will move through an environment that should allow it to maintain its intensity for another day or two.  Soulik will move over water where the Sea Surface Temperature is near 29°C.  An upper level ridge north of Japan will produce easterly winds that will blow toward the top of the typhoon, but the winds will not cause significant vertical wind shear.  Typhoon Soulik could weaken a little, but it is likely to maintain most of its strength for another 24 to 48 hours.

Typhoon Soulik will move around the western end of the ridge north of Japan.  The ridge will steer Soulik toward the northwest for another 36 to 48 hours.  When Soulik reaches the western end of the ridge, it will turn toward the north.  On its anticipated track Typhoon Soulik could reach the northern Ryukyu Islands in about 36 hours.

At 11:00 p.m. EDT on Sunday the center of Typhoon Cimaron was located at latitude 17.3°N and longitude 148.5°E which put it about 240 miles (390 km) east-northeast of Saipan.  Cimaron was moving toward the west-northwest at 7 m.p.h. (11 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 978 mb.  A Typhoon Warning was in effect for Agrihan, Pagan, Almagan.  A Tropical Storm Warning was in effect for Saipan and Tinian.

Typhoon Cimaron will move through an environment that could allow it to intensify during the next several days.  Cimaron will move over water where the Sea Surface Temperature is near 28°C.  Upper level divergence from Typhoon Soulik could inhibit the divergence generated by Cimaron on the northern side of the circulation.  Typhoon Cimaron is likely to intensify during the next day or two,

Typhoon Cimaron will move around the western end of a subtropical ridge.  The ridge will steer Cimaron toward the northwest during the next two or three days.  On its anticipated track Typhoon Cimaron will move over the Northern Marianas during the next 12 to 18 hours.  Cimaron could reach Iwo To within 48 hours and it could be south of Honshu in about three days.

Tropical Storm Cimaron Prompts Warnings for Northern Marianas, Soulik Strengthens West of Iwo To

Tropical Storm Cimaron developed east of the Northern Marianas on Saturday and it prompted Typhoon Warnings for some of the islands, while Typhoon Soulik strengthened west of Iwo To.  At 11:00 p.m. EDT on Saturday the center of Tropical Storm Cimaron was located at latitude 15.5°N and longitude 151.6°E which put it about 420 miles (675 km) east of Saipan.  Cimaron was moving toward the 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.  A Typhoon Warning was in effect for Agrihan, Pagan and Almagan.

A distinct center of circulation developed in an area of thunderstorms east of the Northern Marianas on Saturday and the Japan Meteorological Agency designated the system as Tropical Storm Cimaron.  Numerous bands of showers and thunderstorms developed around the circulation of Tropical Storm Cimaron.  The rainbands west and south of the center of circulation were stronger than the bands east and north of the center.  An inner bands of thunderstorms started to wrap around the south side of the center.  Storms near the center began to generate upper level divergence.

Tropical Storm Cimaron will move through an environment favorable for intensification during the next several days.  Cimaron will move over water where the Sea Surface Temperature is near 29°C.  Tropical Storm Cimaron will move through an area where it will be near the upper level divergence from Typhoon Soulik.  Tropical Storm Cimaron is forecast to stay just southeast of the divergence from Soulik.  If it does that, Cimaron will strengthen into a typhoon during the next few days.  However, if Cimaron moves under the upper level divergence from Typhoon Soulik, then the vertical wind shear will keep Cimaron from strengthening.

Typhoon Soulik strengthened into the equivalent of a major hurricane west of Iwo To on Saturday.  At 11:00 p.m. EDT on Saturday the center of Typhoon Soulik was located at latitude 25.2°N and longitude 138.8°E which put it about 145 miles (235 km) west-northwest of Iwo To.  Soulik was moving toward the west-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 135 m.p.h. (215 km/h).  The minimum surface pressure was 952 mb.

Typhoon Soulik is well organized.  There is a circular eye at the center of circulation.  The eye is surrounded by a ring of strong thunderstorms and the strongest winds are occurring in that ring of storms.  Several bands of showers and thunderstorms are revolving around the core of Soulik.  Storms near the core are generating strong upper level divergence which is pumping mass away in all directions.  Winds to typhoon force extend out about 50 miles (80 km) from the center of circulation.  Winds to tropical storm force extend out about 170 miles (280 km) from the center.

Typhoon Soulik will move through an area favorable for strong typhoons.  Soulik will move over water where the Sea Surface Temperature is near 29°C.  It will move through a region where the upper level winds are weak and there will be little vertical wind shear.  Soulik could maintain its intensity for another 24 to 48 hours.

Typhoon Soulik will move around the western end of a ridge in the middle troposphere.  The ridge will steer Soulik in a general northwesterly direction.  On it anticipated track Typhoon Soulik will move toward the Ryukyu Islands.  Tropical Storm Cimaron will move around the western end of a subtropical ridge over the Western North Pacific Ocean.  On its anticipated track, Cimaron will move near the northern Marianas in 24 to 36 hours.  Tropical Storm Cimaron could approach Iwo To in about three days.