The 2015 season

Tropical Storm Niala (2015)

Tropical Storm Niala peaked at 55 kt in the Eastern Pacific between September 23, 2015 and September 30, 2015, with a lowest pressure of 992 mb.

Track and intensity

The whole track of Tropical Storm Niala, colored by strength, with the other storms of the 2015 season in the same basin behind it, and its wind and pressure hour by hour. Every fix is in the track table below.

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The storm

Basin
Eastern Pacific
Dates
September 23, 2015 to September 30, 2015
Peak strength
Tropical Storm, 55 kt (63 mph)
Lowest pressure
992 mb (29.29 inHg)
Landfall
No; closest approach 346 km (215 mi)
Accumulated cyclone energy
2.5
Tropical-storm-force wind reached
90 nmi (167 km, 104 mi) from the center at its widest
Eyewall radius at its peak
20 nmi (37 km, 23 mi)
Overall size
180 nmi (333 km, 207 mi) to the outermost closed isobar
Peak gust in the best track
65 kt (75 mph)
Fastest the center moved
10 kt (12 mph)
Identifier
CP062015

Deaths and damage

The sources count different things and are not added together.

NOAA Storm Events

0 deaths (0 direct, 0 indirect)none recorded

What National Weather Service offices recorded county by county in 1 states and marine areas, in the United States only. Property and crop damage as each office estimated it, which is not a national loss total.

In the United States

NOAA’s Storm Events database, the record National Weather Service offices compile months after a storm, as compiled March 2026.

Deaths
0 (0 direct, 0 indirect)
Injuries
0
Property damage
none recorded
Crop damage
none recorded
Events recorded
8 in 1 reports from 1 states and marine areas

State by state

State or marine areaDeathsInjuriesDamageEvents
Hawaii008

What was recorded

8 high surf.

Track

Time (UTC)PositionWindPressureStatus
Sep 23, 06:0011.3N 146.3W25 kt1007 mbLow
Sep 23, 12:0011.4N 146.6W25 kt1006 mbLow
Sep 23, 18:0011.6N 147.0W25 kt1006 mbLow
Sep 24, 00:0011.8N 147.5W25 kt1006 mbLow
Sep 24, 06:0012.3N 147.9W25 kt1006 mbLow
Sep 24, 12:0012.9N 148.2W25 kt1006 mbLow
Sep 24, 18:0013.6N 148.6W25 kt1006 mbLow
Sep 25, 00:0014.0N 149.1W30 kt1004 mbTropical depression
Sep 25, 06:0014.4N 149.5W35 kt1002 mbTropical storm
Sep 25, 12:0014.8N 149.8W35 kt1002 mbTropical storm
Sep 25, 18:0015.6N 150.2W40 kt1001 mbTropical storm
Sep 26, 00:0016.0N 150.6W45 kt999 mbTropical storm
Sep 26, 06:0016.5N 151.0W45 kt999 mbTropical storm
Sep 26, 12:0017.1N 151.5W50 kt997 mbTropical storm
Sep 26, 18:0017.1N 151.9W55 kt992 mbTropical storm
Sep 27, 00:0016.9N 152.6W50 kt995 mbTropical storm
Sep 27, 06:0016.6N 153.2W45 kt999 mbTropical storm
Sep 27, 12:0016.3N 153.6W45 kt999 mbTropical storm
Sep 27, 18:0016.1N 154.3W45 kt999 mbTropical storm
Sep 28, 00:0015.7N 155.2W40 kt1004 mbTropical storm
Sep 28, 06:0015.4N 155.8W35 kt1005 mbTropical storm
Sep 28, 12:0015.0N 156.6W30 kt1007 mbTropical depression
Sep 28, 18:0015.1N 157.5W25 kt1008 mbTropical depression
Sep 29, 00:0015.4N 158.4W25 kt1009 mbLow
Sep 29, 06:0015.5N 159.2W25 kt1009 mbLow
Sep 29, 12:0015.6N 159.9W25 kt1009 mbLow
Sep 29, 18:0015.4N 160.4W25 kt1009 mbLow
Sep 30, 00:0015.1N 160.8W25 kt1008 mbLow
Sep 30, 06:0014.7N 161.2W25 kt1008 mbLow
Sep 30, 12:0014.2N 161.6W25 kt1008 mbLow
Sep 30, 18:0014.1N 162.2W20 kt1009 mbLow

Other Eastern Pacific storms of 2015

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.

The National Hurricane Center has published no tropical cyclone report for this storm.