Storm Activity: May 6, 1951 - May 16, 1951
May 16 · 21:00 GMT -- 990 mb Extratropical
| May 16 | 21:00 GMT | 41.29 | 179.86 | -- | 990 mb | Extratropical | -- |
| May 16 | 18:00 GMT | 41 | 178.9 | -- | 990 mb | Extratropical | -- |
| May 16 | 15:00 GMT | 40.76 | 177.92 | -- | 997 mb | Extratropical | -- |
| May 16 | 12:00 GMT | 40.5 | 176.9 | -- | 1,004 mb | Extratropical | -- |
| May 16 | 09:00 GMT | 40.18 | 175.87 | -- | 1,004 mb | Extratropical | -- |
| May 16 | 06:00 GMT | 39.8 | 174.8 | -- | 1,004 mb | Extratropical | -- |
| May 16 | 03:00 GMT | 39.36 | 173.67 | -- | 1,004 mb | Extratropical | -- |
| May 16 | 00:00 GMT | 38.9 | 172.5 | -- | 1,004 mb | Extratropical | -- |
| May 15 | 21:00 GMT | 38.45 | 171.36 | -- | 1,005 mb | Extratropical | -- |
| May 15 | 18:00 GMT | 38 | 170.1 | -- | 1,006 mb | Extratropical | -- |
| May 15 | 15:00 GMT | 37.52 | 168.54 | -- | 1,007 mb | Extratropical | -- |
| May 15 | 12:00 GMT | 37 | 167 | -- | 1,008 mb | Extratropical | -- |
| May 15 | 09:00 GMT | 36.46 | 165.82 | -- | 1,008 mb | Extratropical | -- |
| May 15 | 06:00 GMT | 35.8 | 164.7 | -- | 1,008 mb | Extratropical | -- |
| May 15 | 03:00 GMT | 35.04 | 163.39 | -- | 1,007 mb | Extratropical | -- |
| May 15 | 00:00 GMT | 34 | 162.1 | -- | 1,006 mb | Extratropical | -- |
| May 14 | 21:00 GMT | 32.51 | 161 | -- | 1,005 mb | Extratropical | -- |
| May 14 | 18:00 GMT | 31 | 160 | -- | 1,004 mb | Extratropical | -- |
| May 14 | 15:00 GMT | 29.84 | 158.97 | -- | 1,006 mb | Extratropical | -- |
| May 14 | 12:00 GMT | 29 | 158.1 | -- | 1,008 mb | Extratropical | -- |
| May 14 | 09:00 GMT | 28.47 | 157.54 | -- | 1,008 mb | Extratropical | -- |
| May 14 | 06:00 GMT | 28.1 | 157.1 | -- | 1,008 mb | Extratropical | -- |
| May 14 | 03:00 GMT | 27.62 | 156.55 | -- | 1,008 mb | Extratropical | -- |
| May 14 | 00:00 GMT | 27.1 | 156 | -- | 1,008 mb | Extratropical | -- |
| May 13 | 21:00 GMT | 26.49 | 155.51 | -- | 1,009 mb | Tropical Depression | -- |
| May 13 | 18:00 GMT | 25.9 | 155 | -- | 1,010 mb | Tropical Depression | -- |
| May 13 | 15:00 GMT | 25.42 | 154.39 | -- | 1,010 mb | Tropical Depression | -- |
| May 13 | 12:00 GMT | 25 | 153.8 | -- | 1,010 mb | Tropical Depression | -- |
| May 13 | 09:00 GMT | 24.58 | 153.36 | -- | 1,009 mb | Tropical Depression | -- |
| May 13 | 06:00 GMT | 24.2 | 153 | -- | 1,009 mb | Tropical Depression | -- |
| May 13 | 03:00 GMT | 23.86 | 152.65 | -- | 1,008 mb | Tropical Depression | -- |
| May 13 | 00:00 GMT | 23.5 | 152.4 | -- | 1,008 mb | Tropical Depression | -- |
| May 12 | 21:00 GMT | 23.06 | 152.3 | -- | 1,008 mb | Tropical Depression | -- |
| May 12 | 18:00 GMT | 22.6 | 152.3 | -- | 1,008 mb | Tropical Depression | -- |
| May 12 | 15:00 GMT | 22.19 | 152.31 | -- | 1,008 mb | Tropical Depression | -- |
| May 12 | 12:00 GMT | 21.8 | 152.4 | -- | 1,008 mb | Tropical Depression | -- |
| May 12 | 09:00 GMT | 21.4 | 152.57 | -- | 1,008 mb | Tropical Depression | -- |
| May 12 | 06:00 GMT | 21 | 152.8 | -- | 1,008 mb | Tropical Depression | -- |
| May 12 | 03:00 GMT | 20.6 | 153.04 | -- | 1,008 mb | Tropical Depression | -- |
| May 12 | 00:00 GMT | 20.2 | 153.3 | -- | 1,008 mb | Tropical Depression | -- |
| May 11 | 21:00 GMT | 19.81 | 153.54 | -- | 1,007 mb | Tropical Depression | -- |
| May 11 | 18:00 GMT | 19.4 | 153.8 | -- | 1,006 mb | Tropical Depression | -- |
| May 11 | 15:00 GMT | 18.96 | 154.15 | -- | 1,005 mb | Tropical Depression | -- |
| May 11 | 12:00 GMT | 18.5 | 154.5 | -- | 1,004 mb | Tropical Depression | -- |
| May 11 | 09:00 GMT | 18.06 | 154.77 | -- | 1,003 mb | Unknown | -- |
| May 11 | 06:00 GMT | 17.6 | 155 | -- | 1,002 mb | Unknown | -- |
| May 11 | 03:00 GMT | 17.11 | 155.2 | -- | 1,003 mb | Unknown | -- |
| May 11 | 00:00 GMT | 16.6 | 155.4 | -- | 1,005 mb | Unknown | -- |
| May 10 | 21:00 GMT | 16.03 | 155.61 | -- | 1,002 mb | Unknown | -- |
| May 10 | 18:00 GMT | 15.5 | 155.9 | -- | 1,000 mb | Unknown | -- |
| May 10 | 15:00 GMT | 15.11 | 156.31 | -- | 997 mb | Unknown | -- |
| May 10 | 12:00 GMT | 14.8 | 156.8 | -- | 995 mb | Unknown | -- |
| May 10 | 09:00 GMT | 14.48 | 157.29 | -- | 994 mb | Unknown | -- |
| May 10 | 06:00 GMT | 14.2 | 157.8 | -- | 993 mb | Unknown | -- |
| May 10 | 03:00 GMT | 13.97 | 158.36 | -- | 991 mb | Unknown | -- |
| May 10 | 00:00 GMT | 13.8 | 158.9 | -- | 990 mb | Unknown | -- |
| May 9 | 21:00 GMT | 13.67 | 159.38 | -- | 989 mb | Unknown | -- |
| May 9 | 18:00 GMT | 13.6 | 159.8 | -- | 988 mb | Unknown | -- |
| May 9 | 15:00 GMT | 13.58 | 160.17 | -- | 986 mb | Unknown | -- |
| May 9 | 12:00 GMT | 13.6 | 160.5 | -- | 985 mb | Unknown | -- |
| May 9 | 09:00 GMT | 13.61 | 160.84 | -- | 985 mb | Unknown | -- |
| May 9 | 06:00 GMT | 13.7 | 161.1 | -- | 985 mb | Unknown | -- |
| May 9 | 03:00 GMT | 13.96 | 161.26 | -- | 985 mb | Unknown | -- |
| May 9 | 00:00 GMT | 14.2 | 161.3 | -- | 985 mb | Unknown | -- |
| May 8 | 21:00 GMT | 14.2 | 161.23 | -- | 985 mb | Unknown | -- |
| May 8 | 18:00 GMT | 14.1 | 161.1 | -- | 985 mb | Unknown | -- |
| May 8 | 15:00 GMT | 14.01 | 161 | -- | 982 mb | Unknown | -- |
| May 8 | 12:00 GMT | 13.9 | 160.9 | -- | 980 mb | Unknown | -- |
| May 8 | 09:00 GMT | 13.81 | 160.81 | -- | 980 mb | Unknown | -- |
| May 8 | 06:00 GMT | 13.7 | 160.7 | -- | 980 mb | Unknown | -- |
| May 8 | 03:00 GMT | 13.61 | 160.61 | -- | 985 mb | Unknown | -- |
| May 8 | 00:00 GMT | 13.4 | 160.4 | -- | 990 mb | Unknown | -- |
| May 7 | 21:00 GMT | 12.93 | 159.93 | -- | 992 mb | Tropical Depression | -- |
| May 7 | 18:00 GMT | 12.4 | 159.4 | -- | 995 mb | Tropical Depression | -- |
| May 7 | 15:00 GMT | 12.04 | 159.03 | -- | 996 mb | Tropical Depression | -- |
| May 7 | 12:00 GMT | 11.7 | 158.7 | -- | 998 mb | Tropical Depression | -- |
| May 7 | 09:00 GMT | 11.26 | 158.33 | -- | 999 mb | Tropical Depression | -- |
| May 7 | 06:00 GMT | 10.8 | 158 | -- | 1,000 mb | Tropical Depression | -- |
| May 7 | 03:00 GMT | 10.41 | 157.77 | -- | 1,000 mb | Tropical Depression | -- |
| May 7 | 00:00 GMT | 10 | 157.6 | -- | 1,000 mb | Tropical Depression | -- |
| May 6 | 21:00 GMT | 9.5 | 157.43 | -- | 1,001 mb | Tropical Depression | -- |
| May 6 | 18:00 GMT | 9 | 157.3 | -- | 1,003 mb | Tropical Depression | -- |
| May 6 | 15:00 GMT | 8.58 | 157.24 | -- | 1,003 mb | Tropical Depression | -- |
| May 6 | 12:00 GMT | 8.2 | 157.2 | -- | 1,003 mb | Tropical Depression | -- |
| May 6 | 09:00 GMT | 7.87 | 157.09 | -- | 1,003 mb | Tropical Depression | -- |
| May 6 | 06:00 GMT | 7.5 | 157 | -- | 1,003 mb | Tropical Depression | -- |
| May 6 | 03:00 GMT | 7.03 | 156.98 | -- | 1,004 mb | Tropical Depression | -- |
| May 6 | 00:00 GMT | 6.5 | 157 | -- | 1,005 mb | Tropical Depression | -- |
Learn more about Tropical Depression Joan and the 1951 Central Pacific hurricane season in our hurricane archive.
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