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Tropical Cyclone Broadcast updates only when Tropical Cyclone forms. If you want to receive the newest data, please go to the following sites:
Up-to-date Tropical Cyclone Details:
Updated : August 22,
1999 12:00 HKT
Next update: August 22, 1999
13:00 or earlier
A. Tropical Cyclone Warning:
1 hoisted at August 20, 16:15 HKT
3 hoisted at August 22, 02:30 HKT
(Tropical cyclone signal no. 8 is expected within these 4 hours)
Meaning:
Strong wind is expected or blowing in the Victoria harbour, with a sustained speed of 41-62 km/h, and gusts which may exceed 110 km/h. Important Note:
*
When the Signal No. 3 is hoisted, secure all loose objects, particularly on balconies and roof tops. Secure hoardings, scaffoldings and temporary structures. Winds are normally expected to become generally strong in the harbour areas abour 12 hours after this signal is hoisted - Simply knowing what signal is displayed is not enough. You should listen to radio or television broadcasts of weather bulletins and other announcements related to the tropical cyclone. - Tropical Cyclone Warning Signals are to warn the public of the threat of WINDS associated with a tropical cyclone. - Due to local topographical conditions, winds at your locality may be substantially different from those in the harbour areas. - The weather in Hong Kong cannout be simply inferred from the signal displayed. It depends on many other factors such as the size, intensity and distance of the tropical cyclone as well as the characteristics of netghbouring weather systems.
B. Details:
| Strength: | Severe Tropical Storm | |
| Position: | 21.9°N 115.0°E (100km, ESE of Hong Kong Observatory) | |
| Max wind speed: | About 111 km/h | ( Storm Force 11 ) |
| Central Pressure: | About 976 hPa | |
| Movement: | NW'ly at about 16 km/h | |
| Forecast: | Sam continued its northwesterly track, getting closer Hong Kong and Macau. Hong Kong Observatory hoisted Strong Wind Signal Number 3 at 2:30am. In addition, according to the past track, it is possible to enter 50 - 100 km of Hong Kong. By that time, Hong Kong will extremely possible to be affected by the gale or storm force wind of the center of Sam. Therefore, the possibility of Gale or Storm Signal Number 8 is 100% and Increasing Gale or Storm Signal Number 9 is 50%. Due to Sam is located very near to Hong Kong, a very little change of the track of Sam will bring us very big change of weather. Please pay full attention of the track and direction change of Sam. | |
| [ Cecil Ma's forecast ] | ||
Track Map of Sam (Click to enlarge)
- UNOFFICIAL FORECAST, FOR REFERENCE ONLY-
Past Records of hoisting TC signals in 1999:
Maggie (June 5th - June 8th)
TS unnamed (July 25th - July 27th)