Forecast Positions and Intensities
Date time Position Classification Maximum sustained wind
08:00 HKT 27 May 2012 24.9 N 142.8 E Severe Tropical Storm 105 km/h
08:00 HKT 26 May 2012 22.9 N 140.4 E Severe Tropical Storm 105 km/h
08:00 HKT 25 May 2012 21.0 N 138.8 E Severe Tropical Storm 110 km/h
Past Positions and Intensities
Date time Position Classification Maximum sustained wind
08:00 HKT 24 May 2012 18.5 N 139.3 E Severe Tropical Storm 90 km/h
20:00 HKT 23 May 2012 17.0 N 139.7 E Severe Tropical Storm 90 km/h
Notes:
1. The uncertainties, based on average errors, of the latest analysed position
and 24, 48 and 72-hour forecast positions are of the order of 30, 150, 250 and 350
kilometres respectively.
2. When Tropical Cyclone Warning Signal No. 1 or above is in force, the hourly analysed
tropical cyclone position will be shown.
3. When the tropical cyclone is within the area bounded by 10-30N and 105-125E,
the tropical cyclone track is updated eight times a day at 0:30, 3:30, 6:30, 9:30, 12:30, 15:30,
18:30 and 21:30 HKT, about one and a half hours after the time of observation.
4. When the tropical cyclone is beyond the area bounded by 10-30N and 105-125E
but within the area bounded by 7-36N and 100-140E, the tropical cyclone track
is updated twice a day at noon and midnight about four hours after the time of observation.
5. The past tropical cyclone track and analysed positions may be updated when
additional data is received.
6. Short-term erratic departures of the tropical cyclone from the general direction
of movement may occur from time to time. These departures are partly due to uncertainties
in locating the centre of the tropical cyclone, and partly due to actual short-term
variations in the direction and speed of movement of the tropical cyclone itself.