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Tropical Depression 18W Southeast of Okinawa

23.8N 129.6E

September 13th, 2011 Category: Tropical Storms

Tropical Depression 18W - September 12th, 2011

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Track of TS 18W  - September 12th, 2011 © Univ. of Wisconsin

Track of TS 18W

Tropical Depression 18W is located near 21.4N 134.9E, approximately 500 nautical miles southeast of Kadena Air Base, Okinawa.

The system has tracked west-northwestward at 2 knots over the past six hours. Maximum significant wave height at 11 feet.

Typhoon Parma and Tropical Storms Melor and 18W North of Papua-New Guinea

10.2N 151.1E

October 1st, 2009 Category: Tropical Cyclones, Tropical Storms

Tropical Storm Melor - September 29th, 2009

Tropical Storm Melor - September 29th, 2009

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Track of 18W, 19W and 20W - September 30th, 2009 © Univ. of Wisconsin

Track of 18W, 19W and 20W

Three tropical storms of varying intensities can be found north of Papua New Guinea and Australia. The main image focuses on Tropical Storm Melor, while the animated imagery includes all three (from left to right): Typhoon Parma, Tropical Storm 18W and Tropical Storm Melor.

Tropical Storm 18W is located approximately 70 nautical miles east-southeast of Guam. It has tracked west-northwestward at 15 knots over the past six hours. Maximum significant wave height is 17 feet.

Typhoon Parma (19W) is situated about 160 nautical miles northeast of Palau. The system has tracked northwestward at 11 knots over the past six hours. Parma has been upgraded to typhoon status based on intensity estimates by PGTW, RJTD and KNES, along with a microwave eye-like feature seen in an SSMI image. Maximum significant wave height is 18 feet.

Finally, Tropical Storm Melor (20W), located approximately 605 nautical miles east-southeast of Saipan, has tracked west-northwestward at 14 knots over the past six hours. The system’s maximum significant wave height is 15 feet.

Tropical Disturbance 18W upgraded to Tropical Storm Hagupit

September 20th, 2008 Category: Tropical Cyclones

September 20th, 2008 - Tropical Cyclone HagupitHagupit

September 20th, 2008 - Tropical Cyclone Hagupit

Tropical storm Hagupit is forecast to strike China as a typhoon at about 10:00 GMT on 24 September. Data supplied by the US Navy and Air Force Joint Typhoon Warning Center suggest that the point of landfall will be near 21.9 N, 115.4 E. Hagupit is expected to bring 1-minute maximum sustained winds to the region of around 157 km/h (97 mph). Wind gusts in the area may be considerably higher.

According to the Saffir-Simpson damage scale the potential property damage and flooding from a storm of Hagupit’s strength (category 2) at landfall includes:

  • Storm surge generally 1.8-2.4 metres (6-8 feet) above normal.
  • Some roofing material, door, and window damage of buildings.
  • Considerable damage to shrubbery and trees with some trees blown down.
  • Considerable damage to mobile homes, poorly constructed signs, and piers.
  • Coastal and low-lying escape routes flood 2-4 hours before arrival of the storm center.
  • Small craft in unprotected anchorages break moorings.

There is also the potential for flooding further inland due to heavy rain.

Hagupit - Image Enhanced

Hagupit - Image Enhanced

Typhoon Parma (19W) Hits Northern Philippines

October 2nd, 2009 Category: Tropical Cyclones

Typhoon Parma (19W) - October 2nd, 2009

Typhoon Parma (19W) - October 2nd, 2009

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Track of Parma - October 2nd, 2009 © Univ. of Wisconsin

Track of Parma

Typhoon Parma (19W) located approximately 245 nm east of Manila, Philippines, has tracked northwestward at 15 knots over the past six hours.

Typhoon 19W continues to track on the southern periphery of the the sub-tropical ridge to the northeast. The system is expected to continue on a west-northwestward to northwestward track towards the northeastern coast of Luzon, making landfall near tau 12.

The system will weaken as it crosses northern Luzon into the Luzon Strait before moving slowly into the south China Sea. The available numerical model guidance is in poor agreement, with several aids (NGPS, EGRR, GFDN) crossing north-central Luzon and moving further into the south China Sea.

The remaining aids (JGSM, AVNO, WBAR and TCLP) indicate a recurvature scenario, with avno being the most agressive of these (reaching Tokyo at tau 120). This forecast favors the more westward grouping, but reflects the uncertainty in the extended period, tracking much more slowly in the after tau 72.

Maximum significant wave height at 020600z is 32 feet. Please click here for a previous article on both typhoons.

Super Typhoon Parma (19W) Approaches Philippines

10.4N 131.4E

October 1st, 2009 Category: Tropical Cyclones

Super Typhoon Parma (19W) - October 1st, 2009

Super Typhoon Parma (19W) - October 1st, 2009

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Track of Parma - October 1st, 2009 © Univ. of Wisconsin

Track of Parma

Super Typhoon Parma (19W), located approximately 615 nautical miles east-southeast of Manila, Philippines, has tracked west-northwestward at 15 knots over the past six hours. Maximum significant wave height is 28 feet.

Meanwhile, Typhoon Melor (20W) has tracked northwestward at 5 knots over the past six hours, and is now located approximately 440 nautical miles east-southeast of Saipan.

Please click here for a previous article on both typhoons.