Typhoon TracksDennis (1999, North Atlantic)
Lowest pressure962 hPa
This is an archive, not a forecast or warning. For current storms follow your national meteorological service.
Peak wind90 kt (46 m/s)1-min
Duration15.8 days1999-08-24 – 1999-09-08
Strength rank in 19997 / 12by peak wind
All-time rank250 / 9861950–2025
Peak wind over time (kt)
Central pressure over time (hPa)
Compared with other 1999 storms (peak wind)
135 kt
130 kt
125 kt
120 kt
95 kt
90 kt
85 kt
50 kt
50 kt
45 kt
35 kt
6-hourly track (UTC)
| Time | Lat | Lon | Wind kt | hPa |
|---|---|---|---|---|
| 1999-08-24 00:00 | 21.5 | -67.7 | 30 | 1,009 |
| 1999-08-24 06:00 | 22.0 | -68.9 | 30 | 1,009 |
| 1999-08-24 12:00 | 22.4 | -70.0 | 35 | 1,009 |
| 1999-08-24 18:00 | 22.7 | -70.9 | 40 | 1,009 |
| 1999-08-25 00:00 | 22.8 | -71.5 | 40 | 1,008 |
| 1999-08-25 06:00 | 23.0 | -71.9 | 40 | 1,007 |
| 1999-08-25 12:00 | 23.2 | -72.1 | 45 | 1,004 |
| 1999-08-25 18:00 | 23.4 | -72.3 | 55 | 1,000 |
| 1999-08-26 00:00 | 23.6 | -72.5 | 60 | 998 |
| 1999-08-26 06:00 | 23.8 | -73.1 | 65 | 995 |
| 1999-08-26 12:00 | 24.1 | -73.6 | 65 | 995 |
| 1999-08-26 18:00 | 24.4 | -74.0 | 70 | 990 |
| 1999-08-27 00:00 | 24.8 | -74.4 | 65 | 993 |
| 1999-08-27 06:00 | 25.2 | -75.0 | 65 | 988 |
| 1999-08-27 12:00 | 25.6 | -75.5 | 65 | 988 |
| 1999-08-27 18:00 | 25.9 | -75.9 | 65 | 987 |
| 1999-08-28 00:00 | 26.1 | -76.2 | 70 | 982 |
| 1999-08-28 06:00 | 26.5 | -76.7 | 75 | 976 |
| 1999-08-28 12:00 | 27.1 | -77.0 | 85 | 973 |
| 1999-08-28 18:00 | 27.7 | -77.3 | 90 | 969 |
| 1999-08-29 00:00 | 28.3 | -77.7 | 90 | 969 |
| 1999-08-29 06:00 | 29.0 | -77.9 | 90 | 970 |
| 1999-08-29 12:00 | 29.9 | -78.4 | 90 | 971 |
| 1999-08-29 18:00 | 30.8 | -78.4 | 90 | 967 |
| 1999-08-30 00:00 | 31.9 | -78.1 | 90 | 964 |
| 1999-08-30 06:00 | 32.8 | -77.6 | 90 | 962 |
| 1999-08-30 12:00 | 33.6 | -76.5 | 85 | 965 |
| 1999-08-30 18:00 | 34.3 | -74.8 | 85 | 966 |
| 1999-08-31 00:00 | 34.9 | -73.6 | 80 | 971 |
| 1999-08-31 06:00 | 35.1 | -72.9 | 80 | 977 |
| 1999-08-31 12:00 | 35.2 | -72.8 | 75 | 983 |
| 1999-08-31 18:00 | 35.1 | -73.3 | 70 | 984 |
| 1999-09-01 00:00 | 35.2 | -73.6 | 60 | 986 |
| 1999-09-01 06:00 | 35.0 | -73.4 | 55 | 987 |
| 1999-09-01 12:00 | 35.4 | -73.5 | 50 | 989 |
| 1999-09-01 18:00 | 35.5 | -73.8 | 50 | 988 |
| 1999-09-02 00:00 | 35.4 | -73.7 | 50 | 988 |
| 1999-09-02 06:00 | 35.2 | -73.6 | 45 | 989 |
| 1999-09-02 12:00 | 35.1 | -73.7 | 45 | 989 |
| 1999-09-02 18:00 | 34.8 | -73.9 | 45 | 990 |
| 1999-09-03 00:00 | 34.2 | -74.0 | 45 | 989 |
| 1999-09-03 06:00 | 33.6 | -74.1 | 45 | 989 |
| 1999-09-03 12:00 | 33.2 | -73.9 | 45 | 988 |
| 1999-09-03 18:00 | 33.0 | -73.8 | 50 | 987 |
| 1999-09-04 00:00 | 33.1 | -74.0 | 50 | 987 |
| 1999-09-04 06:00 | 33.3 | -74.5 | 55 | 986 |
| 1999-09-04 12:00 | 33.9 | -75.3 | 55 | 986 |
| 1999-09-04 18:00 | 34.5 | -76.0 | 60 | 986 |
| 1999-09-05 00:00 | 35.0 | -76.8 | 50 | 985 |
| 1999-09-05 06:00 | 35.5 | -77.7 | 35 | 989 |
| 1999-09-05 12:00 | 36.1 | -78.8 | 30 | 994 |
| 1999-09-05 18:00 | 36.2 | -79.4 | 25 | 998 |
| 1999-09-06 00:00 | 36.2 | -79.9 | 25 | 1,000 |
| 1999-09-06 06:00 | 36.4 | -80.1 | 20 | 1,004 |
| 1999-09-06 12:00 | 37.0 | -79.9 | 20 | 1,005 |
| 1999-09-06 18:00 | 37.7 | -79.5 | 20 | 1,008 |
| 1999-09-07 00:00 | 38.5 | -78.5 | 20 | 1,009 |
| 1999-09-07 06:00 | 40.8 | -77.0 | 20 | 1,008 |
| 1999-09-07 12:00 | 42.7 | -77.7 | 20 | 1,007 |
| 1999-09-07 18:00 | 43.5 | -77.7 | 20 | 1,006 |
| 1999-09-08 00:00 | 43.5 | -76.5 | 20 | 1,006 |
| 1999-09-08 06:00 | 44.0 | -75.8 | 20 | 1,006 |
| 1999-09-08 12:00 | 44.9 | -74.8 | 20 | 1,006 |
| 1999-09-08 18:00 | 45.5 | -75.6 | 20 | 1,005 |
Winds are NHC 1-minute sustained winds (not directly comparable with 10-minute typhoon winds).