Typhoon Nat (1991)
Typhoon Nat reached Category 3 in the Western Pacific between September 14, 1991 and October 3, 1991, with a lowest pressure of 950 mb, and made landfall.
Radar
Reflectivity now over Typhoon Nat. Open it to see storms, cones and warnings on the map.























Radar mosaic and map layers from NOAA MRMS. Boundaries from the Iowa Environmental Mesonet.
The storm
- Basin
- Western Pacific
- Dates
- September 14, 1991 to October 3, 1991
- Peak strength
- Category 3, 110 kt (127 mph)
- Lowest pressure
- 950 mb (28.05 inHg)
- Landfall
- Yes
- Accumulated cyclone energy
- 19.4
- Fastest the center moved
- 20 kt (23 mph)
- Identifier
- WP221991
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) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Sep 14, 00:00 | 16.4N 130.1E | 1004 mb | Tropical storm | |
| Sep 14, 06:00 | 16.9N 129.7E | 1004 mb | Tropical storm | |
| Sep 14, 12:00 | 17.6N 128.8E | 1004 mb | Tropical storm | |
| Sep 14, 18:00 | 18.3N 127.8E | 1004 mb | Tropical storm | |
| Sep 15, 00:00 | 19.5N 124.0E | 25 kt | 1004 mb | Tropical storm |
| Sep 15, 06:00 | 19.8N 123.4E | 25 kt | 1004 mb | Tropical storm |
| Sep 15, 12:00 | 20.0N 122.7E | 25 kt | 1004 mb | Tropical storm |
| Sep 15, 18:00 | 20.4N 122.0E | 30 kt | 1002 mb | Tropical storm |
| Sep 16, 00:00 | 20.5N 121.3E | 25 kt | 1002 mb | Tropical storm |
| Sep 16, 06:00 | 20.6N 120.4E | 30 kt | 998 mb | Tropical storm |
| Sep 16, 12:00 | 20.6N 119.6E | 35 kt | 998 mb | Tropical storm |
| Sep 16, 18:00 | 20.5N 119.0E | 40 kt | 998 mb | Tropical storm |
| Sep 17, 00:00 | 20.3N 118.6E | 40 kt | 996 mb | Tropical storm |
| Sep 17, 06:00 | 20.0N 118.4E | 40 kt | 996 mb | Tropical storm |
| Sep 17, 12:00 | 19.7N 118.5E | 35 kt | 996 mb | Tropical storm |
| Sep 17, 18:00 | 19.5N 118.7E | 35 kt | 996 mb | Tropical storm |
| Sep 18, 00:00 | 19.4N 119.1E | 35 kt | 994 mb | Tropical storm |
| Sep 18, 06:00 | 19.5N 119.6E | 40 kt | 994 mb | Tropical storm |
| Sep 18, 12:00 | 19.7N 120.1E | 40 kt | 994 mb | Tropical storm |
| Sep 18, 18:00 | 19.9N 120.6E | 40 kt | 994 mb | Tropical storm |
| Sep 19, 00:00 | 20.1N 121.2E | 40 kt | 994 mb | Tropical storm |
| Sep 19, 06:00 | 20.3N 121.8E | 35 kt | 994 mb | Tropical storm |
| Sep 19, 12:00 | 20.5N 122.5E | 35 kt | 994 mb | Tropical storm |
| Sep 19, 18:00 | 20.7N 123.2E | 35 kt | 994 mb | Tropical storm |
| Sep 20, 00:00 | 20.9N 123.8E | 40 kt | 994 mb | Tropical storm |
| Sep 20, 06:00 | 21.0N 124.3E | 45 kt | 992 mb | Tropical storm |
| Sep 20, 12:00 | 21.1N 124.7E | 50 kt | 990 mb | Tropical storm |
| Sep 20, 18:00 | 21.2N 125.0E | 55 kt | 990 mb | Tropical storm |
| Sep 21, 00:00 | 21.3N 125.3E | 60 kt | 985 mb | Tropical storm |
| Sep 21, 06:00 | 21.4N 125.6E | 70 kt | 970 mb | Tropical storm |
| Sep 21, 12:00 | 21.5N 125.2E | 85 kt | 965 mb | Tropical storm |
| Sep 21, 18:00 | 21.5N 124.7E | 95 kt | 960 mb | Tropical storm |
| Sep 22, 00:00 | 21.6N 124.1E | 105 kt | 955 mb | Tropical storm |
| Sep 22, 06:00 | 21.7N 123.5E | 110 kt | 950 mb | Tropical storm |
| Sep 22, 12:00 | 21.8N 122.6E | 110 kt | 950 mb | Tropical storm |
| Sep 22, 18:00 | 21.9N 121.6E | 105 kt | 950 mb | Tropical storm |
| Sep 23, 00:00 | 22.1N 120.7E | 105 kt | 960 mb | Tropical storm |
| Sep 23, 06:00 | 22.3N 120.0E | 90 kt | 965 mb | Tropical storm |
| Sep 23, 12:00 | 22.5N 119.5E | 70 kt | 975 mb | Tropical storm |
| Sep 23, 18:00 | 22.6N 119.0E | 60 kt | 980 mb | Tropical storm |
| Sep 24, 00:00 | 22.6N 118.6E | 55 kt | 985 mb | Tropical storm |
| Sep 24, 06:00 | 22.5N 118.1E | 50 kt | 990 mb | Tropical storm |
| Sep 24, 12:00 | 22.0N 117.6E | 45 kt | 994 mb | Tropical storm |
| Sep 24, 18:00 | 20.9N 117.1E | 45 kt | 992 mb | Tropical storm |
| Sep 25, 00:00 | 19.9N 116.8E | 45 kt | 992 mb | Tropical storm |
| Sep 25, 06:00 | 19.2N 116.6E | 45 kt | 992 mb | Tropical storm |
| Sep 25, 12:00 | 18.8N 116.4E | 40 kt | 992 mb | Tropical storm |
| Sep 25, 18:00 | 18.2N 116.1E | 40 kt | 996 mb | Tropical storm |
| Sep 26, 00:00 | 17.6N 116.0E | 35 kt | 996 mb | Tropical storm |
| Sep 26, 06:00 | 16.8N 116.0E | 35 kt | 998 mb | Tropical storm |
| Sep 26, 12:00 | 16.3N 116.2E | 30 kt | 998 mb | Tropical storm |
| Sep 26, 18:00 | 16.0N 116.5E | 30 kt | 1000 mb | Tropical storm |
| Sep 27, 00:00 | 15.7N 117.0E | 30 kt | 1004 mb | Tropical storm |
| Sep 27, 06:00 | 15.8N 117.3E | 30 kt | 1004 mb | Tropical storm |
| Sep 27, 12:00 | 15.9N 117.5E | 30 kt | 1002 mb | Tropical storm |
| Sep 27, 18:00 | 16.1N 117.7E | 30 kt | 1002 mb | Tropical storm |
| Sep 28, 00:00 | 16.3N 117.5E | 35 kt | 1002 mb | Tropical storm |
| Sep 28, 06:00 | 16.4N 117.3E | 40 kt | 996 mb | Tropical storm |
| Sep 28, 12:00 | 16.5N 116.9E | 40 kt | 996 mb | Tropical storm |
| Sep 28, 18:00 | 16.6N 116.6E | 45 kt | 996 mb | Tropical storm |
| Sep 29, 00:00 | 16.9N 116.5E | 50 kt | 992 mb | Tropical storm |
| Sep 29, 06:00 | 17.2N 116.5E | 50 kt | 985 mb | Tropical storm |
| Sep 29, 12:00 | 17.5N 116.5E | 55 kt | 980 mb | Tropical storm |
| Sep 29, 18:00 | 18.2N 116.6E | 55 kt | 980 mb | Tropical storm |
| Sep 30, 00:00 | 18.9N 117.0E | 55 kt | 980 mb | Tropical storm |
| Sep 30, 06:00 | 19.6N 117.3E | 60 kt | 975 mb | Tropical storm |
| Sep 30, 12:00 | 20.4N 117.5E | 60 kt | 975 mb | Tropical storm |
| Sep 30, 18:00 | 21.3N 117.7E | 60 kt | 975 mb | Tropical storm |
| Oct 1, 00:00 | 22.1N 117.6E | 60 kt | 975 mb | Tropical storm |
| Oct 1, 06:00 | 22.8N 117.5E | 65 kt | 970 mb | Tropical storm |
| Oct 1, 12:00 | 23.6N 117.3E | 65 kt | 975 mb | Tropical storm |
| Oct 1, 18:00 | 24.2N 117.0E | 50 kt | 985 mb | Tropical storm |
| Oct 2, 00:00 | 25.0N 116.7E | 35 kt | 1008 mb | Tropical storm |
| Oct 2, 06:00 | 25.6N 116.1E | 25 kt | 1008 mb | Tropical storm |
| Oct 2, 12:00 | 26.5N 116.0E | 1010 mb | Mixed | |
| Oct 2, 18:00 | 26.8N 116.1E | 1010 mb | Mixed | |
| Oct 3, 00:00 | 27.7N 116.3E | 1012 mb | Tropical storm | |
| Oct 3, 06:00 | 27.9N 116.9E | 1008 mb | Tropical storm |
Other Western Pacific storms of 1991
- Tropical Storm SharonWestern Pacific · 1991
- Typhoon TimWestern Pacific · 1991
- Tropical Storm VanessaWestern Pacific · 1991
- Super Typhoon WaltWestern Pacific · 1991
- Typhoon YunyaWestern Pacific · 1991
- Unnamed tropical depressionWestern Pacific · 1991
- Typhoon ZekeWestern Pacific · 1991
- Typhoon AmyWestern Pacific · 1991 · 136 deaths
- Typhoon BrendanWestern Pacific · 1991
- Typhoon CaitlinWestern Pacific · 1991
- Tropical Depression BrendanWestern Pacific · 1991
- Tropical Storm DougWestern Pacific · 1991
- Typhoon FredWestern Pacific · 1991
- Typhoon EllieWestern Pacific · 1991
- Unnamed tropical depressionWestern Pacific · 1991
- Typhoon GladysWestern Pacific · 1991
- Unnamed tropical depressionWestern Pacific · 1991
- Tropical Storm HarryWestern Pacific · 1991
- Typhoon IvyWestern Pacific · 1991
- Tropical Storm JoelWestern Pacific · 1991
- Typhoon KinnaWestern Pacific · 1991
- Super Typhoon MireilleWestern Pacific · 1991
- Tropical Storm LukeWestern Pacific · 1991
- Typhoon PatWestern Pacific · 1991
- Typhoon OrchidWestern Pacific · 1991
- Super Typhoon RuthWestern Pacific · 1991
- Unnamed tropical depressionWestern Pacific · 1991
- Super Typhoon SethWestern Pacific · 1991
- Tropical Storm ThelmaWestern Pacific · 1991
- Tropical Storm VerneWestern Pacific · 1991
- Tropical Storm WildaWestern Pacific · 1991
- Super Typhoon YuriWestern Pacific · 1991
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.