Storm Activity: May 12, 1990 - May 18, 1990
May 18 · 12:00 GMT 25 mph 1,009 mb Tropical Depression
| May 18 | 12:00 GMT | 14 | -127.3 | 25 mph | 1,009 mb | Tropical Depression | -- |
| May 18 | 09:00 GMT | 13.98 | -126.59 | 25 mph | 1,009 mb | Tropical Depression | -- |
| May 18 | 06:00 GMT | 14 | -125.9 | 30 mph | 1,009 mb | Tropical Depression | -- |
| May 18 | 03:00 GMT | 14.08 | -125.24 | 30 mph | 1,009 mb | Tropical Depression | -- |
| May 18 | 00:00 GMT | 14.2 | -124.6 | 30 mph | 1,009 mb | Tropical Depression | -- |
| May 17 | 21:00 GMT | 14.33 | -123.97 | 30 mph | 1,008 mb | Tropical Depression | -- |
| May 17 | 18:00 GMT | 14.4 | -123.4 | 35 mph | 1,007 mb | Tropical Depression | -- |
| May 17 | 15:00 GMT | 14.32 | -122.97 | 35 mph | 1,005 mb | Tropical Storm | -- |
| May 17 | 12:00 GMT | 14.2 | -122.5 | 40 mph | 1,003 mb | Tropical Storm | -- |
| May 17 | 09:00 GMT | 14.14 | -121.82 | 45 mph | 1,001 mb | Tropical Storm | -- |
| May 17 | 06:00 GMT | 14.1 | -121.1 | 50 mph | 1,000 mb | Tropical Storm | -- |
| May 17 | 03:00 GMT | 14.09 | -120.47 | 60 mph | 997 mb | Tropical Storm | -- |
| May 17 | 00:00 GMT | 14.1 | -119.9 | 65 mph | 994 mb | Tropical Storm | -- |
| May 16 | 21:00 GMT | 14.11 | -119.37 | 65 mph | 992 mb | Tropical Storm | -- |
| May 16 | 18:00 GMT | 14.1 | -118.9 | 70 mph | 990 mb | Tropical Storm | -- |
| May 16 | 15:00 GMT | 14.04 | -118.5 | 75 mph | 986 mb | Hurricane | 1 |
| May 16 | 12:00 GMT | 13.9 | -118.1 | 80 mph | 983 mb | Hurricane | 1 |
| May 16 | 09:00 GMT | 13.67 | -117.62 | 85 mph | 981 mb | Hurricane | 1 |
| May 16 | 06:00 GMT | 13.4 | -117.1 | 85 mph | 979 mb | Hurricane | 1 |
| May 16 | 03:00 GMT | 13.14 | -116.57 | 85 mph | 981 mb | Hurricane | 1 |
| May 16 | 00:00 GMT | 12.9 | -116 | 80 mph | 983 mb | Hurricane | 1 |
| May 15 | 21:00 GMT | 12.68 | -115.41 | 75 mph | 985 mb | Hurricane | 1 |
| May 15 | 18:00 GMT | 12.5 | -114.8 | 75 mph | 987 mb | Hurricane | 1 |
| May 15 | 15:00 GMT | 12.33 | -114.2 | 75 mph | 987 mb | Hurricane | 1 |
| May 15 | 12:00 GMT | 12.2 | -113.6 | 75 mph | 987 mb | Hurricane | 1 |
| May 15 | 09:00 GMT | 12.13 | -112.99 | 70 mph | 988 mb | Tropical Storm | -- |
| May 15 | 06:00 GMT | 12.1 | -112.4 | 70 mph | 990 mb | Tropical Storm | -- |
| May 15 | 03:00 GMT | 12.09 | -111.86 | 65 mph | 992 mb | Tropical Storm | -- |
| May 15 | 00:00 GMT | 12.1 | -111.3 | 65 mph | 994 mb | Tropical Storm | -- |
| May 14 | 21:00 GMT | 12.11 | -110.68 | 60 mph | 997 mb | Tropical Storm | -- |
| May 14 | 18:00 GMT | 12.1 | -110 | 50 mph | 1,000 mb | Tropical Storm | -- |
| May 14 | 15:00 GMT | 12.06 | -109.27 | 45 mph | 1,001 mb | Tropical Storm | -- |
| May 14 | 12:00 GMT | 12 | -108.5 | 40 mph | 1,003 mb | Tropical Storm | -- |
| May 14 | 09:00 GMT | 11.96 | -107.69 | 40 mph | 1,003 mb | Tropical Storm | -- |
| May 14 | 06:00 GMT | 11.9 | -106.9 | 40 mph | 1,004 mb | Tropical Storm | -- |
| May 14 | 03:00 GMT | 11.82 | -106.16 | 40 mph | 1,004 mb | Tropical Storm | -- |
| May 14 | 00:00 GMT | 11.7 | -105.5 | 40 mph | 1,005 mb | Tropical Storm | -- |
| May 13 | 21:00 GMT | 11.51 | -104.93 | 35 mph | 1,005 mb | Tropical Depression | -- |
| May 13 | 18:00 GMT | 11.3 | -104.5 | 35 mph | 1,006 mb | Tropical Depression | -- |
| May 13 | 15:00 GMT | 11.11 | -104.22 | 35 mph | 1,006 mb | Tropical Depression | -- |
| May 13 | 12:00 GMT | 10.9 | -104 | 35 mph | 1,007 mb | Tropical Depression | -- |
| May 13 | 09:00 GMT | 10.65 | -103.73 | 30 mph | 1,007 mb | Tropical Depression | -- |
| May 13 | 06:00 GMT | 10.4 | -103.4 | 30 mph | 1,008 mb | Tropical Depression | -- |
| May 13 | 03:00 GMT | 10.21 | -103.01 | 30 mph | 1,008 mb | Tropical Depression | -- |
| May 13 | 00:00 GMT | 10 | -102.5 | 30 mph | 1,008 mb | Tropical Depression | -- |
| May 12 | 21:00 GMT | 9.68 | -101.84 | 30 mph | 1,008 mb | Tropical Depression | -- |
| May 12 | 18:00 GMT | 9.3 | -101.1 | 30 mph | 1,009 mb | Tropical Depression | -- |
Learn more about Hurricane Alma and the 1990 Eastern Pacific hurricane season in our hurricane archive.
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