The 1964 season

Unnamed tropical depression (1964)

Unnamed tropical depression peaked at unknown kt in the Western Pacific between December 10, 1964 and December 12, 1964.

Radar

Reflectivity now over Unnamed tropical depression. Open it to see storms, cones and warnings on the map.

Open the live radar with storms, cones and warnings

Radar mosaic and map layers from NOAA MRMS. Boundaries from the Iowa Environmental Mesonet.

The storm

Basin
Western Pacific
Dates
December 10, 1964 to December 12, 1964
Peak strength
Tropical Depression
Landfall
No; closest approach 1530 km (951 mi)
Accumulated cyclone energy
0.0
Identifier
WP441964

Deaths and damage

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.

Track

Time (UTC)PositionWindPressureStatus
Dec 10, 12:003.8N 176.0ETropical depression
Dec 10, 18:004.3N 174.5ETropical depression
Dec 11, 00:004.7N 172.9ETropical depression
Dec 11, 06:004.9N 171.4ETropical depression
Dec 11, 12:004.8N 169.8ETropical depression
Dec 11, 18:004.5N 168.3ETropical depression
Dec 12, 00:003.9N 166.8ETropical depression

Other Western Pacific storms of 1964

What this means

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.

Sources

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.