1999 Global Tropical Cyclones outside the Northwest Pacific

1999 total in this database 19 Tropical cyclones outside the Northwest Pacific: South Indian Ocean 19. Strongest of the year: Tropical Cyclone Evrina/Frederic (approx. 72 m/s). For Northwest Pacific typhoons, see 1999 Typhoon .

Data reliability:
● ReliableWeather satellites monitored these systems throughout, resulting in relatively accurate tracks and intensities (Atlantic and Eastern Pacific from 1966; other basins from 1980)
● Generally reliableAircraft entered typhoons for direct measurements, but satellites were not yet widespread: tracks are generally accurate, while intensities may be biased and weaker cyclones may be missing (from 1950 until satellite coverage became widespread)
● Inferred dataWith no satellites or aircraft that year, intensities were retrospectively estimated from records from ships and coastal weather stations (before 1950)
● Track onlyOnly approximate positions are available, with no wind speed or pressure records, so they are excluded from intensity rankings (mostly early records from the Indian Ocean and Southern Hemisphere)

The name	English Name	ocean area	Peak Category	Max Wind(m/s)	Minimum Pressure (hPa)	Formation Date	数据可信度 ⓘ
-	-	South Indian Ocean	-	-	-	1999-01-04	仅路径
Alda	Alda	South Indian Ocean	Severe Tropical Storm	33.4	975	1999-01-14	可靠
Birenda/Damien	Birenda/Damien	South Indian Ocean	3级Tropical Cyclone	41.2	950	1999-01-21	可靠
Chikita	Chikita	South Indian Ocean	中等Tropical Storm	20.6	990	1999-01-29	可靠
-	-	South Indian Ocean	1级Tropical Cyclone	20.6	-	1999-02-02	可靠
-	-	South Indian Ocean	中等Tropical Storm	23.1	994	1999-02-11	可靠
-	-	South Indian Ocean	Tropical Disturbance	15.4	-	1999-02-25	可靠
Davina	Davina	South Indian Ocean	强Tropical Cyclone	56.6	930	1999-03-01	可靠
-	-	South Indian Ocean	Tropical Depression	18	-	1999-03-03	可靠
-	-	South Indian Ocean	Tropical Depression	18	995	1999-03-12	可靠
万斯	Vance	South Indian Ocean	5级Tropical Cyclone	64.3	913	1999-03-14	可靠
Elaine	Elaine	South Indian Ocean	4级Tropical Cyclone	51.4	945	1999-03-15	可靠
-	-	South Indian Ocean	-	-	-	1999-03-20	仅路径
Evrina/Frederic	Evrina/Frederic	South Indian Ocean	5级Tropical Cyclone	72	920	1999-03-25	可靠
Gwenda	Gwenda	South Indian Ocean	5级Tropical Cyclone	66.9	900	1999-04-02	可靠
Hamish	Hamish	South Indian Ocean	1级Tropical Cyclone	23.1	980	1999-04-17	可靠
Ilsa	Ilsa	South Indian Ocean	2级Tropical Cyclone	30.9	980	1999-12-09	可靠
John	John	South Indian Ocean	5级Tropical Cyclone	66.9	915	1999-12-09	可靠
Astride	Astride	South Indian Ocean	Severe Tropical Storm	33.4	985	1999-12-23	可靠

Data sources: NOAA IBTrACS v04r01; 等级按各ocean area当地机构分级换算, for reference only.