Typhoon 4 in 1951（IRIS）
Detailed information on the typhoon
| Date | Maximum pressure | Max. wind speed | Scale |
|---|---|---|---|
| April 28, 9 pm | 1008 hPa | Tropical cyclone | |
| April 29, 3 am | 1006 hPa | Tropical cyclone | |
| April 29, 9 am | 1003 hPa | Tropical cyclone | |
| April 29, 3 pm | 1003 hPa | Tropical cyclone | |
| April 29, 9 pm | 1002 hPa | Tropical cyclone | |
| April 30, 3 am | 1002 hPa | ||
| April 30, 9 am | 1000 hPa | ||
| April 30, 3 pm | 998 hPa | ||
| April 30, 9 pm | 996 hPa | ||
| May 1, 3 am | 994 hPa | ||
| May 1, 9 am | 992 hPa | ||
| May 1, 3 pm | 987 hPa | ||
| May 1, 9 pm | 987 hPa | ||
| May 2, 3 am | 987 hPa | ||
| May 2, 9 am | 986 hPa | ||
| May 2, 3 pm | 984 hPa | ||
| May 2, 9 pm | 982 hPa | ||
| May 3, 3 am | 970 hPa | ||
| May 3, 9 am | 926 hPa | ||
| May 3, 3 pm | 912 hPa | ||
| May 3, 9 pm | 909 hPa | ||
| May 4, 3 am | 909 hPa | ||
| May 4, 9 am | 910 hPa | ||
| May 4, 3 pm | 909 hPa | ||
| May 4, 9 pm | 912 hPa | ||
| May 5, 3 am | 919 hPa | ||
| May 5, 9 am | 930 hPa | ||
| May 5, 3 pm | 941 hPa | ||
| May 5, 9 pm | 952 hPa | ||
| May 6, 4 am | 964 hPa | ||
| May 6, 10 am | 975 hPa | ||
| May 6, 4 pm | 984 hPa | ||
| May 6, 10 pm | 988 hPa | ||
| May 7, 4 am | 988 hPa | ||
| May 7, 10 am | 988 hPa | ||
| May 7, 4 pm | 986 hPa | ||
| May 7, 10 pm | 981 hPa | ||
| May 8, 4 am | 978 hPa | ||
| May 8, 10 am | 975 hPa | ||
| May 8, 4 pm | 974 hPa | ||
| May 8, 10 pm | 972 hPa | ||
| May 9, 4 am | 970 hPa | ||
| May 9, 10 am | 970 hPa | ||
| May 9, 4 pm | 976 hPa | ||
| May 9, 10 pm | 983 hPa | ||
| May 10, 4 am | 990 hPa | ||
| May 10, 10 am | 993 hPa | ||
| May 10, 4 pm | 995 hPa | ||
| May 10, 10 pm | 995 hPa | ||
| May 11, 4 am | 995 hPa | ||
| May 11, 10 am | 995 hPa | ||
| May 11, 4 pm | 995 hPa | ||
| May 11, 10 pm | 1000 hPa | Extratropical cyclone | |
| May 12, 4 am | 1000 hPa | Extratropical cyclone | |
| May 12, 10 am | 1000 hPa | Extratropical cyclone | |
| May 12, 4 pm | 1004 hPa | Extratropical cyclone | |
| May 12, 10 pm | 1000 hPa | Extratropical cyclone | |
| May 13, 4 am | 1000 hPa | Extratropical cyclone | |
| May 13, 10 am | 1000 hPa | Extratropical cyclone | |
| May 13, 4 pm | 1002 hPa | Extratropical cyclone | |
| May 13, 10 pm | 1004 hPa | Extratropical cyclone | |
| May 14, 4 am | 1006 hPa | Extratropical cyclone | |
| May 14, 10 am | 1010 hPa | Extratropical cyclone | |
| May 14, 4 pm | 1010 hPa | Extratropical cyclone | |
| May 14, 10 pm | 1012 hPa | Extratropical cyclone | |
| May 15, 4 am | 1012 hPa | Extratropical cyclone |
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