NORTH ATLANTIC SEASON MAP

1966 Atlantic hurricane season

17 recorded storms from Jun 5, 1966 to Nov 26, 1966

ACCUMULATED CYCLONE ENERGY137.0

Last updated

The 1966 Atlantic hurricane season produced 15 tropical storms, 7 hurricanes and 3 major hurricanes, one of which, Inez, reached Category 5. It opened with Hurricane Alma in early June, stayed busy through July and closed with late-November storms. Hurricane Faith crossed the Atlantic toward Scandinavia, and Inez wound from Guadeloupe across Hispaniola, Cuba, the Florida Keys and the Gulf of Mexico to Tampico. Read more

1966 Atlantic hurricane season: every recorded storm trackRecorded tracks of all 17 storms, colored by the wind category at each observation. Hover or focus a storm in the table to highlight its track.UNITED STATESCANADAMEXICOCUBABRAZILAFRICAEUROPECHINAJAPANINDIAGulf of MexicoAtlantic OceanPacific OceanArabian SeaBay of BengalAlma: Jun 5–Jun 12, peak 115 mph, Category 3Unnamed: Jun 28–Jul 2, peak 46 mph, Tropical stormBecky: Jul 1–Jul 2, peak 86 mph, Category 1Celia: Jul 13–Jul 21, peak 75 mph, Category 1Dorothy: Jul 24–Jul 30, peak 86 mph, Category 1Ella: Jul 22–Jul 28, peak 46 mph, Tropical stormUnnamed: Jul 25–Jul 27, peak 29 mph, Tropical depressionFaith: Aug 21–Sep 4, peak 121 mph, Category 3Greta: Sep 1–Sep 7, peak 52 mph, Tropical stormHallie: Sep 20–Sep 21, peak 58 mph, Tropical stormInez: Sep 21–Oct 11, peak 161 mph, Category 5Judith: Sep 27–Sep 30, peak 46 mph, Tropical stormUnnamed: Sep 27–Sep 30, peak 35 mph, Tropical depressionKendra: Oct 3–Oct 9, peak 40 mph, Tropical stormLois: Nov 7–Nov 10, peak 86 mph, Category 1Unnamed: Nov 14–Nov 17, peak 63 mph, Tropical stormUnnamed: Nov 22–Nov 26, peak 63 mph, Tropical storm

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Whole season

DepressionTropical stormCat 1Cat 2Cat 3Cat 4Cat 5Post-tropical
Every storm of the 1966 Atlantic hurricane season. Column headers sort the list.
Alma–115Cat 39702,330
Unnamed–46Tropical storm1004850
Becky–86Cat 19841,520
Celia–75Cat 19943,640
Ella–46Tropical storm10082,280
Dorothy–86Cat 19891,620
Unnamed–29Tropical depression1007400
Faith–121Cat 395010,660
Greta–52Tropical storm10041,850
Hallie–58Tropical storm99790
Inez–161Cat 59274,960
Judith–46Tropical storm10071,360
Unnamed–35Tropical depression—860
Kendra–40Tropical storm—1,500
Lois–86Cat 19833,450
Unnamed–63Tropical storm9943,150
Unnamed–63Tropical storm9971,550

17 storms with an IBTrACS 1966 hurricane season record. Tracks are the archived center positions, first observation Jun 5, 1966, last Nov 26, 1966.

Tropical storms15

Tropical-stage US-agency wind of 39 mph or more

Hurricanes7

74 mph or more, one-minute sustained

Major (Category 3+)3

110 mph or more, Saffir–Simpson scale

Category 51

158 mph or more at any tropical-stage observation

Strongest stormInez

161 mph

Lowest pressure927 hPa

Inez, Sep 28, 1966

Longest track record23.8 days

Faith, full archive record

Storms without US-agency wind0

Mapped, but outside the counts above

SEASON HISTORY

An early start, a late finish

Arnold Sugg, writing for the National Hurricane Center, said the season began early and ended late. Storm numbers ran only slightly above normal, but hurricanes were active on 50 days against an average of 33, and June and November each logged more hurricane days than in the previous 12 years combined. Only three earlier years since 1871 had produced their fifth tropical cyclone as early as July. The Miami Weather Bureau office took the name National Hurricane Center in 1966.

The site counts 15 tropical storms, 7 hurricanes and 3 major hurricanes, with accumulated cyclone energy of 137 in its archive calculation. The count includes three storms that the reanalysis added: one from 28 June to 2 July, which the Weather Bureau had tracked as a depression, and two in the second half of November. It also includes Kendra, which Sugg's summary said was not a tropical storm on post-analysis; the reanalysis restored it as a tropical storm in October.

Hurricane Alma, the earliest Florida hurricane in 141 years

Alma grew from a fractured trough over Nicaragua and Honduras in early June. On the night of 5 June, San Rafael, Honduras, recorded 30 inches of rain; the town was nearly destroyed and 73 people died, which Sugg attributed to Alma. The storm became a hurricane on 6 June and crossed the Isle of Pines and Havana Province on 8 June, where Havana measured 110 mph winds.

Alma passed between the Dry Tortugas and Key West, and the reanalysis estimates 100 kt, Category 3, winds over the lower Keys, which matches its peak in the archive. It weakened offshore and came ashore near St. Marks, Florida, on 9 June at 75 kt, Category 1. Only a hurricane in 1825 had struck the United States earlier in the year. Tides up to 10 feet inundated much of Cedar Key. Sugg listed six deaths in Florida from heart attacks, drownings and electrocutions, while later accounts give Alma's toll across its path as 90 deaths and about $210 million, in 1966 dollars.

A busy July and Faith's long voyage

July brought four named storms, all at sea. Becky became a hurricane 300 miles southeast of Bermuda, a ship passing through its center measured 985 mb, and it weakened south of Newfoundland. Celia faded near the Leeward Islands, then revived off the Bahamas and raced north to western Newfoundland. Dorothy stalled west of the Azores. Ella never organized and died east of the Bahamas.

Hurricane Faith held hurricane strength for 15 days as it circled the south, west and north sides of the Bermuda high. It passed within 25 miles of Sint Maarten, reached its lowest pressure of 950 mb and 105 kt peak in early September, and later crossed the Faeroe Islands. Sugg called the track, which extended into the Arctic Ocean, one of the longest hurricane paths on record. Four people died at sea: a sailor on the Alberto Benati, a ferry passenger off Denmark and two men rowing across the Atlantic.

Inez from Guadeloupe to Cuba

Inez left the African coast as a weak depression on 18 September and became a hurricane on 26 September. The reanalysis places its landfall on Guadeloupe at 110 kt and 958 mb on 27 September. Over the eastern Caribbean on 28 September, aircraft measured the storm's lowest pressure, 927 mb, and a research plane recorded 197 mph at 8,000 feet, the highest speed that aircraft had logged. The eye struck the Barahona Peninsula of the Dominican Republic late on the morning of 29 September, and the reanalysis gives 140 kt, Category 5, at that landfall, the same as the archive peak.

Inez crossed southern Haiti that afternoon at 100 kt and reached Guantánamo on 30 September, where 138 mph winds were reported. Instead of recurving, it lost organization over the mountains, drifted along Cuba's south coast for about 36 hours, then crawled north across central Cuba. A small tornado in Nassau killed a 15-month-old child on 2 October.

Inez turns back across the Keys and the Gulf

A ridge built north of Inez while it lingered over Cuba, and on 4 October the hurricane turned west-southwest. The eye passed over the Keys from Key Largo to Key West, and the reanalysis gives two Keys landfalls at 85 kt, Category 2. Flamingo on the mainland recorded a 92 mph gust. Sugg wrote that 45 of the 54 deaths in the United States in 1966 happened in one marine accident, when Cuban refugees tried to cross the Florida Straits.

Inez brushed northern Yucatán on 7 October, deepened to 948 mb in the Gulf and threatened Texas for about a day before rising pressure pushed it into Mexico just north of Tampico on 10 October. The reanalysis gives that final landfall at 100 kt and 961 mb, and Tampico reported gusts to 127 mph before communications failed. Sugg estimated about 1,000 deaths along the entire track. The National Hurricane Center issued 65 advisories on Inez, the most for any hurricane to that point.

Hurricane Lois formed in early November and stayed at sea, and two storms the reanalysis added closed the season in late November.

Further reading

NOAA IBTrACS v04r01 historical track archive

Monthly Weather Review 1966 season summary (HRD copy)

Atlantic reanalysis metadata

Wikipedia: 1966 Atlantic hurricane season

QUICK ANSWERS

The 1966 season in brief

How many hurricanes were there in the 1966 Atlantic hurricane season?

The archive records 7 hurricanes (one-minute winds of 74 mph or more) among 15 tropical storms, with 3 major hurricanes reaching 110 mph. Counts use US-agency winds during the tropical stage.

What was the strongest storm of the 1966 Atlantic hurricane season?

Inez, with a peak one-minute sustained wind of 161 mph (Category 5) on Sep 28, 1966, 06:00 PM UTC and a minimum central pressure of 927 mb.

How many Category 5 storms were there in 1966?

1 storm in the 1966 Atlantic hurricane season reached Category 5 on the Saffir–Simpson one-minute wind scale: Inez.

When did the 1966 Atlantic hurricane season start and end?

The first tropical-stage observation is on Jun 5, 1966 and the last on Nov 26, 1966, from 17 tracked storms in the archive.

What was the first hurricane of the 1966 Atlantic hurricane season?

Alma, which reached hurricane strength (74 mph) on Jun 6, 1966, 06:00 PM UTC.

METHODOLOGY

Data sources and limitations

The map and totals are generated from NOAA's IBTrACS v04r01 archive. A storm belongs to this page when the archive lists it in the North Atlantic basin for the 1966 season, so a December storm whose track ends in January stays with its season. Storms that cross between basins appear on the page of their archive basin only.

Counts use US-agency one-minute winds during the tropical stage: 34 kt for a tropical storm, 64 kt for hurricane strength and 96 kt for major intensity, on the Saffir–Simpson scale in every basin. Local agencies classify storms differently, and official season summaries can differ from the archive. Accumulated cyclone energy sums squared winds at six-hourly synoptic times, counting observations in the calendar year. Storms with no US-agency wind are mapped but cannot enter the counts.

The map frame is the same for every North Atlantic season, so a track that leaves it is cut at the edge. Lines show each storm's center, not its size, rainfall or flood extent. Coastlines use Natural Earth's 1:10m land data.

Archive retrieved

NOAA IBTrACS archive and Field documentation

Sources & methodology