Clara was a Cat 1 Atlantic tropical cyclone that existed from September 5 to September 12, 1977 (8 days). It reached peak winds of 74 mph (65 kt) and a minimum central pressure of 993 mb.
| Time (UTC) | Status | Lat | Lon | Winds (kt) | Pressure (mb) | Record |
|---|---|---|---|---|---|---|
| 1977-09-05 12:00 | TD | 32.80 | -80.00 | 20 | 1015 | |
| 1977-09-05 18:00 | TD | 33.20 | -79.00 | 20 | 1014 | |
| 1977-09-06 00:00 | TD | 33.60 | -78.20 | 20 | 1013 | |
| 1977-09-06 06:00 | TD | 33.80 | -77.60 | 25 | 1012 | |
| 1977-09-06 12:00 | TD | 34.00 | -77.00 | 25 | 1011 | |
| 1977-09-06 18:00 | TD | 34.20 | -76.40 | 25 | 1010 | |
| 1977-09-07 00:00 | TD | 34.40 | -75.80 | 30 | 1010 | |
| 1977-09-07 06:00 | TD | 34.60 | -75.00 | 30 | 1010 | |
| 1977-09-07 12:00 | TD | 34.70 | -74.30 | 30 | 1010 | |
| 1977-09-07 18:00 | TD | 34.90 | -73.00 | 30 | 1010 | |
| 1977-09-08 00:00 | TS | 35.10 | -71.70 | 35 | 1006 | |
| 1977-09-08 06:00 | TS | 35.30 | -69.70 | 45 | 1001 | |
| 1977-09-08 12:00 | HU | 35.50 | -67.70 | 65 | 993 | |
| 1977-09-08 18:00 | HU | 35.60 | -66.20 | 65 | 994 | |
| 1977-09-09 00:00 | HU | 35.50 | -64.60 | 65 | 998 | |
| 1977-09-09 06:00 | TS | 34.80 | -63.50 | 60 | 1000 | |
| 1977-09-09 12:00 | TS | 34.00 | -62.80 | 55 | 999 | |
| 1977-09-09 18:00 | TS | 33.40 | -62.80 | 50 | 1001 | |
| 1977-09-10 00:00 | TS | 32.80 | -63.20 | 45 | 1000 | |
| 1977-09-10 06:00 | TS | 32.80 | -63.60 | 40 | 1000 | |
| 1977-09-10 12:00 | TS | 33.00 | -63.80 | 45 | 1001 | |
| 1977-09-10 18:00 | TS | 33.50 | -63.70 | 45 | 1001 | |
| 1977-09-11 00:00 | TS | 34.20 | -63.20 | 45 | 1002 | |
| 1977-09-11 06:00 | TS | 34.80 | -62.50 | 45 | 1002 | |
| 1977-09-11 12:00 | EX | 36.00 | -61.50 | 45 | 1001 | |
| 1977-09-11 18:00 | EX | 38.00 | -59.80 | 45 | 1001 | |
| 1977-09-12 00:00 | EX | 40.50 | -57.50 | 45 | 1001 |
Source: NOAA National Hurricane Center HURDAT2 best-track database (nhc.noaa.gov/data). Data is in the public domain. Best-track positions and intensities are post-storm reanalysis estimates and may differ from real-time advisories.