Storm Activity: Jul 12, 2004 - Jul 19, 2004
Jul 19 · 06:00 GMT 15 mph 1,015 mb Tropical Low
| Jul 19 | 06:00 GMT | 26.9 | -127.3 | 15 mph | 1,015 mb | Tropical Low | -- |
| Jul 19 | 03:00 GMT | 26.9 | -127.45 | 15 mph | 1,014 mb | Tropical Low | -- |
| Jul 19 | 00:00 GMT | 26.9 | -127.6 | 15 mph | 1,014 mb | Tropical Low | -- |
| Jul 18 | 21:00 GMT | 26.92 | -127.75 | 15 mph | 1,013 mb | Tropical Low | -- |
| Jul 18 | 18:00 GMT | 26.9 | -127.9 | 15 mph | 1,013 mb | Tropical Low | -- |
| Jul 18 | 15:00 GMT | 26.82 | -128.06 | 15 mph | 1,012 mb | Tropical Low | -- |
| Jul 18 | 12:00 GMT | 26.7 | -128.2 | 15 mph | 1,012 mb | Tropical Low | -- |
| Jul 18 | 09:00 GMT | 26.57 | -128.33 | 15 mph | 1,011 mb | Tropical Low | -- |
| Jul 18 | 06:00 GMT | 26.4 | -128.4 | 15 mph | 1,011 mb | Tropical Low | -- |
| Jul 18 | 03:00 GMT | 26.21 | -128.38 | 15 mph | 1,010 mb | Tropical Low | -- |
| Jul 18 | 00:00 GMT | 26 | -128.3 | 15 mph | 1,010 mb | Tropical Low | -- |
| Jul 17 | 21:00 GMT | 25.8 | -128.22 | 15 mph | 1,010 mb | Tropical Low | -- |
| Jul 17 | 18:00 GMT | 25.6 | -128.1 | 15 mph | 1,010 mb | Tropical Low | -- |
| Jul 17 | 15:00 GMT | 25.4 | -127.96 | 20 mph | 1,009 mb | Tropical Low | -- |
| Jul 17 | 12:00 GMT | 25.2 | -127.8 | 25 mph | 1,009 mb | Tropical Low | -- |
| Jul 17 | 09:00 GMT | 25 | -127.67 | 25 mph | 1,009 mb | Tropical Low | -- |
| Jul 17 | 06:00 GMT | 24.8 | -127.5 | 25 mph | 1,009 mb | Tropical Low | -- |
| Jul 17 | 03:00 GMT | 24.58 | -127.28 | 25 mph | 1,009 mb | Tropical Low | -- |
| Jul 17 | 00:00 GMT | 24.4 | -127 | 25 mph | 1,009 mb | Tropical Low | -- |
| Jul 16 | 21:00 GMT | 24.28 | -126.67 | 25 mph | 1,008 mb | Tropical Low | -- |
| Jul 16 | 18:00 GMT | 24.2 | -126.3 | 25 mph | 1,008 mb | Tropical Low | -- |
| Jul 16 | 15:00 GMT | 24.14 | -125.92 | 25 mph | 1,008 mb | Tropical Low | -- |
| Jul 16 | 12:00 GMT | 24.1 | -125.5 | 25 mph | 1,008 mb | Tropical Low | -- |
| Jul 16 | 09:00 GMT | 24.06 | -125.03 | 25 mph | 1,008 mb | Tropical Low | -- |
| Jul 16 | 06:00 GMT | 24 | -124.5 | 30 mph | 1,008 mb | Tropical Low | -- |
| Jul 16 | 03:00 GMT | 23.91 | -123.9 | 30 mph | 1,008 mb | Tropical Low | -- |
| Jul 16 | 00:00 GMT | 23.8 | -123.3 | 30 mph | 1,008 mb | Tropical Low | -- |
| Jul 15 | 21:00 GMT | 23.7 | -122.78 | 30 mph | 1,008 mb | Tropical Low | -- |
| Jul 15 | 18:00 GMT | 23.6 | -122.3 | 30 mph | 1,008 mb | Tropical Low | -- |
| Jul 15 | 15:00 GMT | 23.5 | -121.85 | 30 mph | 1,007 mb | Tropical Low | -- |
| Jul 15 | 12:00 GMT | 23.4 | -121.4 | 30 mph | 1,007 mb | Tropical Low | -- |
| Jul 15 | 09:00 GMT | 23.31 | -120.92 | 30 mph | 1,006 mb | Tropical Low | -- |
| Jul 15 | 06:00 GMT | 23.2 | -120.4 | 35 mph | 1,006 mb | Tropical Low | -- |
| Jul 15 | 03:00 GMT | 23.06 | -119.82 | 35 mph | 1,005 mb | Tropical Depression | -- |
| Jul 15 | 00:00 GMT | 22.9 | -119.2 | 35 mph | 1,005 mb | Tropical Depression | -- |
| Jul 14 | 21:00 GMT | 22.71 | -118.56 | 35 mph | 1,004 mb | Tropical Depression | -- |
| Jul 14 | 18:00 GMT | 22.5 | -117.9 | 35 mph | 1,004 mb | Tropical Depression | -- |
| Jul 14 | 15:00 GMT | 22.31 | -117.27 | 35 mph | 1,003 mb | Tropical Storm | -- |
| Jul 14 | 12:00 GMT | 22.1 | -116.6 | 40 mph | 1,002 mb | Tropical Storm | -- |
| Jul 14 | 09:00 GMT | 21.83 | -115.86 | 45 mph | 1,000 mb | Tropical Storm | -- |
| Jul 14 | 06:00 GMT | 21.5 | -115.1 | 45 mph | 999 mb | Tropical Storm | -- |
| Jul 14 | 03:00 GMT | 21.14 | -114.4 | 50 mph | 998 mb | Tropical Storm | -- |
| Jul 14 | 00:00 GMT | 20.7 | -113.7 | 50 mph | 997 mb | Tropical Storm | -- |
| Jul 13 | 21:00 GMT | 20.18 | -112.95 | 55 mph | 995 mb | Tropical Storm | -- |
| Jul 13 | 18:00 GMT | 19.6 | -112.2 | 60 mph | 994 mb | Tropical Storm | -- |
| Jul 13 | 15:00 GMT | 19 | -111.5 | 60 mph | 992 mb | Tropical Storm | -- |
| Jul 13 | 12:00 GMT | 18.4 | -110.8 | 65 mph | 991 mb | Tropical Storm | -- |
| Jul 13 | 09:00 GMT | 17.83 | -110.04 | 60 mph | 992 mb | Tropical Storm | -- |
| Jul 13 | 06:00 GMT | 17.3 | -109.3 | 60 mph | 994 mb | Tropical Storm | -- |
| Jul 13 | 03:00 GMT | 16.83 | -108.63 | 55 mph | 995 mb | Tropical Storm | -- |
| Jul 13 | 00:00 GMT | 16.4 | -108 | 50 mph | 997 mb | Tropical Storm | -- |
| Jul 12 | 21:00 GMT | 15.95 | -107.4 | 45 mph | 999 mb | Tropical Storm | -- |
| Jul 12 | 18:00 GMT | 15.5 | -106.8 | 40 mph | 1,002 mb | Tropical Storm | -- |
| Jul 12 | 15:00 GMT | 15.05 | -106.16 | 35 mph | 1,004 mb | Tropical Depression | -- |
| Jul 12 | 12:00 GMT | 14.6 | -105.5 | 35 mph | 1,006 mb | Tropical Depression | -- |
Learn more about Tropical Storm Blas and the 2004 Eastern Pacific hurricane season in our hurricane archive.
View All Hurricanes and Tropical Cyclones