The 2017 season

Hurricane Otis (2017)

Hurricane Otis reached Category 3 in the Eastern Pacific between September 11, 2017 and September 21, 2017, with a lowest pressure of 965 mb.

Radar

Reflectivity now over Hurricane Otis. 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
Eastern Pacific
Dates
September 11, 2017 to September 21, 2017
Peak strength
Category 3, 100 kt (115 mph)
Lowest pressure
965 mb (28.50 inHg)
Landfall
No; closest approach 507 km (315 mi)
Accumulated cyclone energy
4.6
Tropical-storm-force wind reached
60 nmi (111 km, 69 mi) from the center at its widest
Hurricane-force wind reached
15 nmi (28 km, 17 mi) from the center at its widest
Eyewall radius at its peak
10 nmi (19 km, 12 mi)
Overall size
180 nmi (333 km, 207 mi) to the outermost closed isobar
Peak gust in the best track
120 kt (138 mph)
Fastest the center moved
15 kt (17 mph)
Identifier
EP152017

Deaths and damage

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

Track

Time (UTC)PositionWindPressureStatus
Sep 11, 06:0016.4N 108.6W25 kt1009 mbTropical depression
Sep 11, 12:0016.5N 110.0W25 kt1007 mbTropical depression
Sep 11, 18:0016.4N 111.5W25 kt1006 mbTropical depression
Sep 12, 00:0016.2N 113.0W25 kt1006 mbTropical depression
Sep 12, 06:0016.0N 114.4W25 kt1006 mbTropical depression
Sep 12, 12:0015.8N 115.7W30 kt1004 mbTropical depression
Sep 12, 18:0015.5N 116.9W30 kt1004 mbTropical depression
Sep 13, 00:0015.2N 118.0W35 kt1003 mbTropical storm
Sep 13, 06:0014.9N 119.1W35 kt1003 mbTropical storm
Sep 13, 12:0014.9N 120.1W30 kt1004 mbTropical depression
Sep 13, 18:0015.0N 120.9W30 kt1004 mbTropical depression
Sep 14, 00:0015.1N 121.5W30 kt1004 mbTropical depression
Sep 14, 06:0015.2N 122.1W30 kt1004 mbTropical depression
Sep 14, 12:0015.3N 122.7W30 kt1005 mbTropical depression
Sep 14, 18:0015.5N 123.3W30 kt1005 mbTropical depression
Sep 15, 00:0015.7N 123.9W30 kt1006 mbTropical depression
Sep 15, 06:0015.9N 124.4W30 kt1006 mbTropical depression
Sep 15, 12:0016.0N 124.8W30 kt1007 mbTropical depression
Sep 15, 18:0016.0N 125.2W30 kt1007 mbTropical depression
Sep 16, 00:0015.9N 125.5W25 kt1008 mbTropical depression
Sep 16, 06:0015.8N 125.9W25 kt1008 mbTropical depression
Sep 16, 12:0015.8N 126.4W30 kt1007 mbTropical depression
Sep 16, 18:0015.8N 126.8W35 kt1006 mbTropical storm
Sep 17, 00:0015.8N 127.1W40 kt1005 mbTropical storm
Sep 17, 06:0016.0N 127.3W50 kt1001 mbTropical storm
Sep 17, 12:0016.3N 127.2W65 kt991 mbHurricane
Sep 17, 18:0016.8N 127.1W80 kt980 mbHurricane
Sep 18, 00:0017.6N 127.2W100 kt965 mbHurricane
Sep 18, 06:0018.3N 127.3W90 kt973 mbHurricane
Sep 18, 12:0018.7N 127.4W65 kt991 mbHurricane
Sep 18, 18:0019.0N 127.5W45 kt1002 mbTropical storm
Sep 19, 00:0019.1N 127.6W40 kt1004 mbTropical storm
Sep 19, 06:0019.1N 127.8W35 kt1006 mbTropical storm
Sep 19, 12:0019.0N 128.3W30 kt1007 mbLow
Sep 19, 18:0018.6N 128.8W30 kt1007 mbLow
Sep 20, 00:0018.1N 129.4W25 kt1008 mbLow
Sep 20, 06:0017.6N 129.9W25 kt1008 mbLow
Sep 20, 12:0017.1N 130.5W25 kt1008 mbLow
Sep 20, 18:0016.6N 131.1W25 kt1008 mbLow
Sep 21, 00:0016.1N 131.7W20 kt1009 mbLow

Other Eastern Pacific storms of 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.