Super Typhoon Lan (2017)
Super Typhoon Lan reached Category 4 in the Western Pacific between October 15, 2017 and October 23, 2017, with a lowest pressure of 922 mb, and made landfall.
Track and intensity
The whole track of Super Typhoon Lan, colored by strength, with the other storms of the 2017 season in the same basin behind it, and its wind and pressure hour by hour. Every fix is in the track table below.
The storm
- Basin
- Western Pacific
- Dates
- October 15, 2017 to October 23, 2017
- Peak strength
- Category 4, 135 kt (155 mph)
- Lowest pressure
- 922 mb (27.23 inHg)
- Landfall
- Yes
- Accumulated cyclone energy
- 21.3
- Tropical-storm-force wind reached
- 460 nmi (852 km, 529 mi) from the center at its widest
- Hurricane-force wind reached
- 120 nmi (222 km, 138 mi) from the center at its widest
- Eyewall radius at its peak
- 27 nmi (50 km, 31 mi)
- Overall size
- 480 nmi (889 km, 552 mi) to the outermost closed isobar
- Peak gust in the best track
- 45 kt (52 mph)
- Fastest the center moved
- 52 kt (60 mph)
- Identifier
- WP252017
Deaths and damage
No source this site reads carries a casualty or damage figure for this storm.
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Oct 15, 00:00 | 8.7N 137.9E | 20 kt | 1007 mb | Disturbance |
| Oct 15, 06:00 | 9.1N 137.3E | 20 kt | 1003 mb | Disturbance |
| Oct 15, 12:00 | 9.5N 136.8E | 25 kt | 1002 mb | Tropical depression |
| Oct 15, 18:00 | 10.0N 136.3E | 30 kt | 1002 mb | Tropical depression |
| Oct 16, 00:00 | 10.3N 135.6E | 35 kt | 1001 mb | Tropical storm |
| Oct 16, 06:00 | 10.4N 134.6E | 35 kt | 1001 mb | Tropical storm |
| Oct 16, 12:00 | 10.6N 133.4E | 40 kt | 993 mb | Tropical storm |
| Oct 16, 18:00 | 10.7N 132.7E | 45 kt | 989 mb | Tropical storm |
| Oct 17, 00:00 | 10.4N 132.0E | 45 kt | 989 mb | Tropical storm |
| Oct 17, 06:00 | 10.1N 132.5E | 50 kt | 992 mb | Tropical storm |
| Oct 17, 12:00 | 10.4N 132.4E | 55 kt | 987 mb | Tropical storm |
| Oct 17, 18:00 | 11.0N 132.5E | 60 kt | 979 mb | Tropical storm |
| Oct 18, 00:00 | 12.2N 132.5E | 65 kt | 977 mb | Typhoon |
| Oct 18, 06:00 | 13.1N 132.2E | 65 kt | 978 mb | Typhoon |
| Oct 18, 12:00 | 14.0N 131.7E | 65 kt | 977 mb | Typhoon |
| Oct 18, 18:00 | 14.6N 131.1E | 70 kt | 970 mb | Typhoon |
| Oct 19, 00:00 | 15.4N 130.3E | 75 kt | 967 mb | Typhoon |
| Oct 19, 06:00 | 16.3N 130.1E | 90 kt | 956 mb | Typhoon |
| Oct 19, 12:00 | 17.0N 130.0E | 85 kt | 959 mb | Typhoon |
| Oct 19, 18:00 | 18.0N 129.9E | 80 kt | 963 mb | Typhoon |
| Oct 20, 00:00 | 18.9N 130.0E | 85 kt | 959 mb | Typhoon |
| Oct 20, 06:00 | 19.7N 130.1E | 95 kt | 952 mb | Typhoon |
| Oct 20, 12:00 | 20.1N 130.3E | 115 kt | 937 mb | Typhoon |
| Oct 20, 18:00 | 20.7N 130.7E | 130 kt | 926 mb | Super typhoon |
| Oct 21, 00:00 | 21.4N 131.3E | 130 kt | 926 mb | Super typhoon |
| Oct 21, 06:00 | 22.4N 132.0E | 130 kt | 926 mb | Super typhoon |
| Oct 21, 12:00 | 23.8N 132.6E | 135 kt | 922 mb | Super typhoon |
| Oct 21, 18:00 | 25.5N 133.3E | 130 kt | 926 mb | Super typhoon |
| Oct 22, 00:00 | 27.8N 133.8E | 125 kt | 930 mb | Typhoon |
| Oct 22, 06:00 | 29.9N 134.6E | 110 kt | 941 mb | Typhoon |
| Oct 22, 12:00 | 32.0N 136.2E | 90 kt | 956 mb | Typhoon |
| Oct 22, 18:00 | 34.6N 138.6E | 70 kt | 970 mb | Extratropical |
| Oct 23, 00:00 | 37.5N 141.6E | 55 kt | 982 mb | Extratropical |
| Oct 23, 06:00 | 41.0N 146.0E | 970 mb | Extratropical | |
| Oct 23, 12:00 | 42.8N 150.3E | 972 mb | Extratropical | |
| Oct 23, 18:00 | 44.2N 155.4E | 978 mb | Extratropical |
Other Western Pacific storms of 2017
- Unnamed tropical depressionWestern Pacific · 2017
- Unnamed tropical depressionWestern Pacific · 2017
- Tropical Storm MuifaWestern Pacific · 2017
- Tropical Storm MerbokWestern Pacific · 2017
- Typhoon NanmadolWestern Pacific · 2017
- Tropical Storm TalasWestern Pacific · 2017
- Super Typhoon NoruWestern Pacific · 2017
- Tropical Storm KulapWestern Pacific · 2017
- Tropical Storm SoncaWestern Pacific · 2017
- Tropical Storm RokeWestern Pacific · 2017
- Typhoon NesatWestern Pacific · 2017
- Tropical Storm HaitangWestern Pacific · 2017
- Tropical Storm NalgaeWestern Pacific · 2017
- Typhoon BanyanWestern Pacific · 2017
- Typhoon HatoWestern Pacific · 2017 · 26 deaths
- Tropical Storm PakharWestern Pacific · 2017
- Typhoon SanvuWestern Pacific · 2017
- Tropical Storm MawarWestern Pacific · 2017
- Tropical Depression GucholWestern Pacific · 2017
- Typhoon TalimWestern Pacific · 2017
- Typhoon DoksuriWestern Pacific · 2017
- Unnamed tropical depressionWestern Pacific · 2017
- Unnamed tropical depressionWestern Pacific · 2017
- Typhoon KhanunWestern Pacific · 2017
- Unnamed tropical depressionWestern Pacific · 2017
- Typhoon SaolaWestern Pacific · 2017
- Typhoon DamreyWestern Pacific · 2017
- Unnamed tropical depressionWestern Pacific · 2017
- Unnamed tropical depressionWestern Pacific · 2017
- Tropical Storm HaikuiWestern Pacific · 2017
- Tropical Storm KirogiWestern Pacific · 2017
- Tropical Storm Kai-TakWestern Pacific · 2017
- Typhoon TembinWestern Pacific · 2017
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.