A compact low-pressure area in a tropical wave moved off West Africa on 25–26 August and slowly organized over several days. A tropical depression formed about 900 nautical miles east of the Lesser Antilles at 1200 UTC 30 August and became Tropical Storm Fiona by 1800 UTC that day. Fiona moved generally west‑northwest and then northwest, passing near the northern Leeward Islands on 1 September, turned northward as it interacted with larger circulation near Hurricane Earl, became post‑tropical just south of Bermuda on 4 September, and dissipated by 0000 UTC 5 September. The storm lasted from 30 August to 4 September 2010 as a tropical cyclone.
Fiona did not make any direct landfall as a tropical cyclone. Watches and warnings were issued for parts of the northern Leeward Islands (including Anguilla, Antigua and Barbuda, St. Barthélemy, St. Martin, Saba, Sint Maarten, and Sint Eustatius) on 31 August–1 September, and for Bermuda on 2–4 September, but tropical‑storm‑force winds remained northeast of the islands and Fiona weakened to a remnant low before passing southeast of Bermuda.
The storm’s maximum sustained winds reached 55 kt (about 63 mph) at 1800 UTC 1 September, with an estimated minimum central pressure near 998 mb (the pressure around 1200 UTC 1 September was extrapolated to 998 mb as the minimum). At peak intensity Fiona was a moderate tropical storm (below hurricane strength).
Reported storm surge and heavy-rain impacts were minimal in the official record. The only ship report of tropical-storm‑force winds was from the Johannes Maersk (35 kt and pressure 1010.0 mb) on 31 August. No specific storm surge heights or large rainfall totals at named cities or counties were reported in the NHC document, and the radar/satellite imagery showed the main convection stayed offshore of the islands.
There were no reports of damage or casualties associated with Fiona. Regions closest to the storm — the northern Leeward Islands and Bermuda — experienced precautionary watches and warnings but escaped significant impacts. Forecasts of Fiona’s formation were issued several days in advance, though development occurred later than first expected; NHC track forecasts were generally better than average for this storm and NHC intensity forecasts performed particularly well.
Paid members can generate summaries tailored to the counties of their choice. The Fiona TCR covers impacts across many counties and states — a Pinellas County resident doesn't need the Asheville detail, and a Buncombe County resident doesn't need the Tampa surge data.
Upgrade for county-specific summariesSummary above produced from the National Hurricane Center's official post-storm Tropical Cyclone Report. Read the full report for casualty lists, damage estimates by area, forecast critique, and detailed meteorological discussion:
📄 Read NHC's full report on Fiona → (opens at nhc.noaa.gov)| Time (UTC) | Status | Lat | Lon | Winds (kt) | Pressure (mb) | Record |
|---|---|---|---|---|---|---|
| 2010-08-30 00:00 | LO | 14.00 | -41.80 | 25 | 1007 | |
| 2010-08-30 06:00 | LO | 14.10 | -43.80 | 30 | 1007 | |
| 2010-08-30 12:00 | TD | 14.40 | -45.70 | 30 | 1007 | |
| 2010-08-30 18:00 | TS | 14.90 | -47.70 | 35 | 1007 | |
| 2010-08-31 00:00 | TS | 15.50 | -50.00 | 35 | 1007 | |
| 2010-08-31 06:00 | TS | 15.90 | -52.50 | 35 | 1006 | |
| 2010-08-31 12:00 | TS | 16.10 | -54.80 | 35 | 1006 | |
| 2010-08-31 18:00 | TS | 16.30 | -56.90 | 40 | 1006 | |
| 2010-09-01 00:00 | TS | 16.60 | -58.50 | 45 | 1004 | |
| 2010-09-01 06:00 | TS | 17.20 | -59.80 | 50 | 1001 | |
| 2010-09-01 12:00 | TS | 18.20 | -61.00 | 50 | 998 | |
| 2010-09-01 18:00 | TS | 19.50 | -62.50 | 55 | 999 | |
| 2010-09-02 00:00 | TS | 21.00 | -63.80 | 50 | 1000 | |
| 2010-09-02 06:00 | TS | 22.30 | -64.90 | 45 | 1001 | |
| 2010-09-02 12:00 | TS | 23.60 | -65.90 | 45 | 1002 | |
| 2010-09-02 18:00 | TS | 25.00 | -66.60 | 45 | 1003 | |
| 2010-09-03 00:00 | TS | 26.30 | -67.00 | 40 | 1005 | |
| 2010-09-03 06:00 | TS | 27.50 | -67.00 | 40 | 1007 | |
| 2010-09-03 12:00 | TS | 28.50 | -66.70 | 35 | 1010 | |
| 2010-09-03 18:00 | TS | 29.60 | -66.00 | 35 | 1011 | |
| 2010-09-04 00:00 | LO | 30.70 | -65.00 | 35 | 1011 | |
| 2010-09-04 06:00 | LO | 31.80 | -63.90 | 30 | 1011 | |
| 2010-09-04 12:00 | LO | 32.90 | -62.90 | 25 | 1011 | |
| 2010-09-04 18:00 | LO | 34.10 | -62.00 | 25 | 1011 |
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.