1955 North Atlantic hurricane season

Hurricane Janet 1955

Hurricane Janet devastated communities from the Lesser Antilles to Mexico in September 1955. It crossed the Caribbean, struck near Chetumal at Category 5 strength and then added to an unfolding flood disaster on Mexico's Gulf coast. Its destruction led to the retirement of the name Janet.

PEAK INTENSITYCategory 5
JANET: complete recorded track, Sep 21, 1955–Sep 30, 1955Recorded track from Sep 21, 1955 to Sep 30, 1955. Colors show the recorded wind category. The highlighted position follows the replay controls.NORTH AMERICASOUTH AMERICAMEXICOCUBAAtlantic OceanSep 22, 12:00 AM UTCSep 23, 12:00 AM UTCSep 24, 12:00 AM UTCSep 25, 12:00 AM UTCSep 26, 12:00 AM UTCSep 27, 12:00 AM UTCSep 28, 12:00 AM UTCSep 29, 12:00 AM UTCSep 30, 12:00 AM UTCPeak: Category 5SEP 21SEP 30

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DepressionTropical stormCat 1Cat 2Cat 3Cat 4Cat 5Post-tropical
Wind speed 173 mphPressure Not recorded
09001009502001000mphmbSep 21Sep 24Sep 27Sep 30
Forward speed 24 mphCumulative ACE 19.58 10⁴ kt²
0015153030mph10⁴ kt²Sep 21Sep 24Sep 27Sep 30
Maximum sustained wind173 mph

173 mph

Minimum recorded pressure914 hPa

Sep 28, 1955 during the tropical stage

Recorded track duration9 days

Full archive record, including non-tropical stages if present

Approximate track distance3,270 mi

Along the recorded center positions

STORM HISTORY

The first destruction in the islands

Janet formed east of the Lesser Antilles on 21 September and strengthened as it approached Barbados and the Windward Islands. It passed south of Barbados and between Grenada and Carriacou, damaging homes, crops and communications. Relief ships later brought food and other supplies to the affected islands.

Across the Caribbean

After a period of weakening in the eastern Caribbean, Janet intensified again as it moved west. A reconnaissance aircraft, Snowcloud Five, disappeared during a mission into the hurricane with eleven people aboard. Janet reached Category 5 strength on 27 September and peak one-minute sustained winds of 150 kt at 00:00 UTC on 28 September.

Category 5 landfall near Chetumal

Janet struck near Chetumal, Mexico, at its peak intensity early on 28 September. The archive records 150 kt and a central pressure of 914 hPa at 05:00 UTC. The hurricane devastated southern Quintana Roo and nearby British Honduras, now Belize. In Chetumal, the historical account reports that only five buildings remained intact.

An estimated 500 people died in Quintana Roo. Communities in British Honduras also suffered extensive destruction, prompting a program to rebuild 48 villages. Relief crews established food depots and restored emergency communications, and officials built an airstrip to speed deliveries to Corozal.

A second landfall and widespread flooding

Janet weakened across the Yucatán Peninsula, then crossed the Bay of Campeche and made another landfall north of Veracruz on 29 September. Its rain worsened flooding left by hurricanes Gladys and Hilda. Floodwater stranded thousands around Tampico, where at least 326 people died, and aircraft and helicopters carried supplies and evacuated residents.

The historical storm total is at least 1,023 direct deaths and US$65.8 million in damage in 1955 dollars. Reconstruction extended across the Caribbean and Mexico. In Barbados, the destruction of low-income housing helped lead to a new housing authority and rebuilding with stronger materials.

Further reading

NOAA IBTrACS v04r01 historical track archive

Wikipedia, Hurricane Janet

QUICK ANSWERS

Janet in brief

What was Hurricane Janet's highest wind speed?

173 mph, the highest one-minute sustained wind in its tropical stage, recorded on Sep 28, 1955, 12:00 AM UTC.

What category was Hurricane Janet?

Category 5 at its peak on the Saffir–Simpson one-minute wind scale, first reaching Category 5 on Sep 27, 1955, 05:00 PM UTC. Other agencies classify storms differently.

What was Hurricane Janet's lowest pressure?

914 mb, the minimum central pressure recorded during its tropical stage, on Sep 28, 1955, 05:00 AM UTC.

When did Hurricane Janet occur?

The archived track runs from Sep 21, 1955, 12:00 PM UTC to Sep 30, 1955, 12:00 PM UTC, with the tropical stage from Sep 21, 1955, 12:00 PM UTC to Sep 30, 1955, 12:00 PM UTC.

Where did Hurricane Janet form?

In the North Atlantic basin, in the 1955 season. Its first archived position is 13.2°N, 52.6°W on Sep 21, 1955, 12:00 PM UTC.

Did Hurricane Janet make landfall?

The archive places its center over land at 3 recorded positions; the strongest is 173 mph on Sep 28, 1955, 05:00 AM UTC. Positions are six-hourly, so this is not a landfall chronology.

METHODOLOGY

Data sources and limitations

The map and summary are generated from NOAA's IBTrACS v04r01 archive. Wind and category use US-agency records; minimum pressure is calculated during the tropical stage, with the archive's pressure source retained. Category 5 refers to the Saffir–Simpson one-minute wind scale; local agencies may use different classifications. Coastlines use Natural Earth's 1:10m land data.

Track distance adds great-circle distances between consecutive observations, excluding gaps over 12 hours. This track has no gaps over 12 hours. The line shows the storm's center, not its size, rainfall or flood extent. Converted wind speeds are rounded to the nearest whole unit.

Archive retrieved

NOAA IBTrACS archive and Field documentation

Sources & methodology