Hurricane Cleo (1964)

Basin

North Atlantic

Dates

August 20, 1964 to September 11, 1964

Peak strength

Category 4, 130 kt (150 mph)

Lowest pressure

938 mb (27.70 inHg)

Landfall

Yes

Accumulated cyclone energy

32.9

Fastest the center moved

41 kt (47 mph)

Identifier

AL051964

No source this site reads publishes a machine-readable casualty or damage figure for a storm of this era. The National Hurricane Center’s season tables begin in 1995 and carry deaths and damage only from 2005 in the Atlantic and 2020 in both basins; the US Storm Events record begins in 1996.

Landfall points the US agencies flagged in the best track. The nearest town is named from the site’s gazetteer, not from the report.

The Weather Prediction Center attributes 1,072 rain gauge totals over the contiguous United States to this storm. The wettest reached 14.33 inches (364 mm).

WPC’s storm rainfall file, 1900 to 2020, compiled by David Roth.

• Unnamed tropical stormNorth Atlantic · 1964Tropical Storm60 kt · 992 mb
• Unnamed tropical stormNorth Atlantic · 1964Tropical Storm50 kt · 1003 mb
• Unnamed hurricaneNorth Atlantic · 1964Cat 175 kt · 1006 mb
• Tropical Storm AbbyNorth Atlantic · 1964Tropical Storm60 kt · 1000 mb
• Tropical Storm BrendaNorth Atlantic · 1964Tropical Storm45 kt · 1006 mb
• Hurricane DoraNorth Atlantic · 1964Cat 4115 kt · 942 mb
• Hurricane EthelNorth Atlantic · 1964Cat 290 kt · 969 mb
• Tropical Storm FlorenceNorth Atlantic · 1964Tropical Storm40 kt · 1003 mb
• Hurricane GladysNorth Atlantic · 1964Cat 4115 kt · 945 mb
• Hurricane HildaNorth Atlantic · 1964Cat 4120 kt · 941 mb
• Hurricane IsbellNorth Atlantic · 1964Cat 3100 kt · 964 mb
• Unnamed tropical stormNorth Atlantic · 1964Tropical Storm60 kt · 997 mb

A best track is the record a warning agency settles on after the storm, not what it said at the time: position, maximum sustained wind and central pressure every six hours, revised against every observation that came in later. Category is the Saffir-Simpson scale, which runs from Category 1 at 64 kt to Category 5 at 137 kt and reads wind only, so it says nothing about surge or rain. Accumulated cyclone energy adds up the square of the wind through the storm's life, so it counts strength and duration together.

Storm history from NOAA NCEI’s International Best Track Archive for Climate Stewardship (IBTrACS), which merges the official best track of every warning agency. Live storms, cones, watches and warnings from the National Hurricane Center and the Central Pacific Hurricane Center. Archived radar from NOAA’s Level II archive.

The National Hurricane Center has published no tropical cyclone report for this storm.

• Wikipedia article: Hurricane Cleo