1966 Atlantic hurricane season
Season summary map
Seasonal boundaries
First system formedMay 29, 1966
Last system dissipatedDecember 13, 1966
Strongest storm
 • Maximum winds175 mph (280 km/h)
(1-minute sustained)
 • Lowest pressure904 mbar (hPa; 26.7 inHg)
Seasonal statistics
Total depressions14
Total storms13
Major hurricanes
(Cat. 3+)
Total fatalities1437 total
Total damage$953 million (1966 USD)
Atlantic hurricane seasons
1964, 1965, 1966, 1967, 1968

The 1966 Atlantic hurricane season featured the tropical cyclone with the longest track in the Atlantic basin – Hurricane Flossie. Also during the year, the Miami, Florida Weather Office was re-designated the National Hurricane Center. The season officially began on June 1, and lasted until November 30. These dates conventionally delimit the period of each year when most tropical cyclones form in the Atlantic basin. It was a near average season in terms of tropical storms, with a total of 13 named storms. The first system, Tropical Depression One, struck Mexico in late May. The second system, Alma, developed over Nicaragua on June 4th, and later eventually struck Florida as a category 4 hurricane, becoming the most intense June hurricane by a large margin.

Hurricanes Becky, Celia, Daisy, and Tropical Storm Ella all did not strike land. Flossie took a long trek through the entire Atlantic ocean, forming near Cabo Verde, peaking near the Lesser Antilles, and eventually dissipating over Norway, the only tropical cyclone to exist north of Scotland. Greta was another non impactful storm, while Hallie hit Mexico as a weak storm. Inez traversed the Caribbean as a category 5, causing devastation along the way, becoming the deadliest storm of the season. Judith and Kendra all did not impact land in major ways, while Hurricane Lois in early November did not impact land at all. The final storm of the season, Tropical Storm Marsha, hit the East Coast on December 12th - 13th, as a 60 mph tropical storm. Overall, the storms of 1966 caused $953 million in damages, with a majority of the damage toll coming from three storms - Alma, Flossie, and Inez. The death toll of the season was 1437, with most of it caused by Inez.

Season summary



Tropical Depression One

Tropical depression (SSHWS)
Temporary cyclone north.svg One 1966 track(GFC5WMHB).png
DurationMay 29 – May 30
Peak intensity35 mph (55 km/h) (1-min)  1003 mbar (hPa)

Hurricane Alma

Category 4 hurricane (SSHWS)
Hurricane Alma (1966).jpg Alma 1966 track(GFC5WMHB).png
DurationJune 4 – June 11
Peak intensity145 mph (230 km/h) (1-min)  937 mbar (hPa)

Hurricane Becky

Category 1 hurricane (SSHWS)
1966 Sep 14 Elsie.png Becky 1966 track(GFC5WMHB).png
DurationJuly 1 – July 4
Peak intensity75 mph (120 km/h) (1-min)  983 mbar (hPa)

Hurricane Celia

Category 1 hurricane (SSHWS)
Celia Jul 21 1966 1445Z.png Celia 1966 track(GFC5WMHB).png
DurationJuly 14 – July 20
Peak intensity90 mph (150 km/h) (1-min)  991 mbar (hPa)

Hurricane Daisy

Category 2 hurricane (SSHWS)
Hurricane Dorothy (1966).JPG Daisy 1966 track(GFC5WMHB).png
DurationJuly 22 – July 28
Peak intensity105 mph (165 km/h) (1-min)  976 mbar (hPa)

Tropical Storm Ella

Tropical storm (SSHWS)
Ella Jul 26 1966 1529Z.png Ella 1966 track(GFC5WMHB).png
DurationJuly 26 – July 29
Peak intensity50 mph (85 km/h) (1-min)  1004 mbar (hPa)

Hurricane Flossie

Category 4 hurricane (SSHWS)
1966 Sep 4 Cora.png Flossie 1966 track(GFC5WMHB).png
DurationAugust 22 – September 13
Peak intensity155 mph (250 km/h) (1-min)  921 mbar (hPa)

Tropical Storm Greta

Tropical storm (SSHWS)
Temporary cyclone north.svg Greta 1966 track(GFC5WMHB).png
DurationSeptember 2 – September 4
Peak intensity45 mph (75 km/h) (1-min)  1003 mbar (hPa)

Tropical Storm Hallie

Tropical storm (SSHWS)
Hallie Sept 21 1966 0534Z.png Hallie 1966 track(GFC5WMHB).png
DurationSeptember 20 – September 21
Peak intensity40 mph (65 km/h) (1-min)  1002 mbar (hPa)

Hurricane Inez

Category 5 hurricane (SSHWS)
Hurricane Inez in GOM (2).png Inez 1966 track(GFC5WMHB).png
DurationSeptember 23 – October 8
Peak intensity175 mph (280 km/h) (1-min)  904 mbar (hPa)

Tropical Storm Judith

Tropical storm (SSHWS)
Temporary cyclone north.svg Judith 1966 track(GFC5WMHB).png
DurationSeptember 28 – September 30
Peak intensity50 mph (85 km/h) (1-min)  1005 mbar (hPa)

Tropical Storm Kendra

Tropical storm (SSHWS)
Temporary cyclone north.svg Kendra 1966 track(GFC5WMHB).png
DurationOctober 8 – October 11
Peak intensity60 mph (95 km/h) (1-min)  998 mbar (hPa)

Hurricane Lois

Category 1 hurricane (SSHWS)
Hurricane Faith 1966.jpg Lois 1966 track(GFC5WMHB).png
DurationNovember 5 – November 9
Peak intensity90 mph (150 km/h) (1-min)  981 mbar (hPa)

Tropical Storm Marsha

Tropical storm (SSHWS)
Temporary cyclone north.svg Marsha 1966 track(GFC5WMHB).png
DurationDecember 11 – December 13
Peak intensity60 mph (95 km/h) (1-min)  994 mbar (hPa)

Storm names

The following names were used for named storms (tropical storms and hurricanes) that formed in the North Atlantic in 1966. Storms were named Inez, Kendra, Lois and Marsha for the first time in 1966. The names Alma, Flossie, and Inez were later retired. The same list was used in the 1962 season and was used for the 1970 season. Names that were not assigned are marked in gray.

  • Alma
  • Becky
  • Celia
  • Daisy
  • Ella
  • Flossie
  • Greta
  • Hallie
  • Inez
  • Judith
  • Kendra
  • Lois
  • Marsha
  • Noreen (unused)
  • Orpha (unused)
  • Patty (unused)
  • Rena (unused)
  • Sherry (unused)
  • Thora (unused)
  • Vicky (unused)
  • Wilma (unused)
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