The 2021 season

Tropical Storm Mirinae (2021)

Tropical Storm Mirinae peaked at 55 kt in the Western Pacific between August 3, 2021 and August 11, 2021, with a lowest pressure of 977 mb.

Radar

Reflectivity now over Tropical Storm Mirinae. 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
August 3, 2021 to August 11, 2021
Peak strength
Tropical Storm, 55 kt (63 mph)
Lowest pressure
977 mb (28.85 inHg)
Landfall
No; closest approach 112 km (70 mi)
Accumulated cyclone energy
3.3
Identifier
WP142021

Radar at RODN as it neared land, Aug 5, 06:00 UTC

Deaths and damage

No source this site reads carries a casualty or damage figure for this storm.

Track

Time (UTC)PositionWindPressureStatus
Aug 3, 06:0023.7N 124.4E998 mbTropical storm
Aug 3, 12:0023.8N 125.0E1000 mbTropical storm
Aug 3, 18:0024.2N 125.8E20 kt998 mbDisturbance
Aug 4, 00:0024.8N 126.1E25 kt998 mbTropical depression
Aug 4, 06:0025.3N 126.3E25 kt997 mbTropical depression
Aug 4, 12:0025.6N 126.5E25 kt996 mbTropical depression
Aug 4, 18:0026.0N 126.7E25 kt995 mbTropical depression
Aug 5, 00:0026.5N 127.1E30 kt993 mbTropical depression
Aug 5, 06:0026.9N 128.1E30 kt992 mbTropical depression
Aug 5, 12:0026.9N 128.9E35 kt991 mbTropical storm
Aug 5, 18:0026.9N 130.1E35 kt991 mbTropical storm
Aug 6, 00:0027.0N 131.8E35 kt991 mbTropical storm
Aug 6, 06:0027.3N 133.3E40 kt988 mbTropical storm
Aug 6, 12:0027.8N 134.8E45 kt986 mbTropical storm
Aug 6, 18:0028.4N 136.5E45 kt986 mbTropical storm
Aug 7, 00:0029.5N 137.5E40 kt991 mbTropical storm
Aug 7, 06:0031.0N 138.3E40 kt990 mbTropical storm
Aug 7, 12:0032.0N 138.9E45 kt987 mbTropical storm
Aug 7, 18:0033.1N 139.5E50 kt981 mbTropical storm
Aug 8, 00:0034.0N 140.8E50 kt980 mbTropical storm
Aug 8, 06:0035.2N 142.2E55 kt977 mbTropical storm
Aug 8, 12:0036.1N 143.5E50 kt980 mbTropical storm
Aug 8, 18:0037.1N 145.0E50 kt980 mbTropical storm
Aug 9, 00:0037.8N 147.1E45 kt983 mbTropical storm
Aug 9, 06:0038.4N 149.7E45 kt985 mbTropical storm
Aug 9, 12:0038.6N 152.2E35 kt988 mbTropical storm
Aug 9, 18:0038.6N 154.7E40 kt987 mbExtratropical
Aug 10, 00:0038.7N 158.7E40 kt984 mbExtratropical
Aug 10, 06:0037.9N 161.0E992 mbExtratropical
Aug 10, 12:0037.4N 164.4E996 mbExtratropical
Aug 10, 18:0037.2N 167.2E996 mbExtratropical
Aug 11, 00:0037.2N 169.3E998 mbExtratropical

Other Western Pacific storms of 2021

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.