1977 Global Tropical Cyclones Outside the Northwest Pacific

Included in this database in 1977 17 Tropical cyclones outside Northwest Pacific: South Indian Ocean 17. Strongest of the year: Tropical Cyclone Aurore (约 50.9 m/s) . Northwest PacificTyphoon 请看 1977 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 ⓘ
Clarence	Clarence	South Indian Ocean	-	-	-	1977-01-01	仅路径
Irene	Irene	South Indian Ocean	3级Tropical Cyclone	43.7	970	1977-01-06	较可靠
Domitile	Domitile	South Indian Ocean	-	-	-	1977-01-17	仅路径
Emilie	Emilie	South Indian Ocean	-	-	-	1977-01-25	仅路径
Fifi	Fifi	South Indian Ocean	-	-	-	1977-01-26	仅路径
Gilda	Gilda	South Indian Ocean	-	-	-	1977-02-02	仅路径
Hervea	Hervea	South Indian Ocean	-	-	-	1977-02-10	仅路径
Io/Jack	Io/Jack	South Indian Ocean	Tropical Cyclone	38.6	975	1977-02-13	较可靠
Karen	Karen	South Indian Ocean	3级Tropical Cyclone	43.7	-	1977-03-02	较可靠
Leo	Leo	South Indian Ocean	3级Tropical Cyclone	46.3	-	1977-03-24	较可靠
Verna	Verna	South Indian Ocean	2级Tropical Cyclone	30.9	973	1977-04-28	较可靠
Aurore	Aurore	South Indian Ocean	强Tropical Cyclone	50.9	927	1977-11-18	较可靠
Babette	Babette	South Indian Ocean	中等Tropical Storm	20.1	991	1977-12-03	较可靠
Celimene/Sam	Celimene/Sam	South Indian Ocean	Severe Tropical Storm	27.8	990	1977-12-13	较可靠
-	-	South Indian Ocean	-	-	-	1977-12-26	仅路径
Dulcinee	Dulcinee	South Indian Ocean	Tropical Disturbance	15.4	997	1977-12-26	较可靠
Esther	Esther	South Indian Ocean	中等Tropical Storm	24.2	984	1977-12-28	较可靠

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