The 1947 season

Unnamed tropical depression (1947)

Unnamed tropical depression peaked at unknown kt in the North Indian between July 9, 1947 and July 12, 1947.

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
North Indian
Dates
July 9, 1947 to July 12, 1947
Peak strength
Tropical Depression
Landfall
No; closest approach 15 km (9 mi)
Accumulated cyclone energy
0.0
Identifier
IO061947

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
Jul 9, 18:0018.9N 90.6ETropical storm
Jul 10, 00:0018.9N 90.3ETropical storm
Jul 10, 06:0018.9N 89.8ETropical storm
Jul 10, 12:0018.9N 89.2ETropical storm
Jul 10, 18:0018.9N 88.7ETropical storm
Jul 11, 00:0018.8N 88.3ETropical storm
Jul 11, 06:0018.8N 87.8ETropical storm
Jul 11, 12:0018.6N 87.0ETropical storm
Jul 11, 18:0018.6N 86.2ETropical storm
Jul 12, 00:0018.6N 85.2ETropical storm

Other North Indian storms of 1947

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.