Cyclone Helen (2013)
Cyclone Helen reached Category 1 in the North Indian between November 18, 2013 and November 23, 2013, with a lowest pressure of 970 mb, and made landfall.
Track and intensity
The whole track of Cyclone Helen, colored by strength, with the other storms of the 2013 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
- North Indian
- Dates
- November 18, 2013 to November 23, 2013
- Peak strength
- Category 1, 70 kt (81 mph)
- Lowest pressure
- 970 mb (28.64 inHg)
- Landfall
- Yes
- Accumulated cyclone energy
- 4.1
- Tropical-storm-force wind reached
- 75 nmi (139 km, 86 mi) from the center at its widest
- Hurricane-force wind reached
- 20 nmi (37 km, 23 mi) from the center at its widest
- Eyewall radius at its peak
- 20 nmi (37 km, 23 mi)
- Overall size
- 170 nmi (315 km, 196 mi) to the outermost closed isobar
- Fastest the center moved
- 13 kt (15 mph)
- Identifier
- IO042013
Deaths and damage
No source this site reads carries a casualty or damage figure for this storm.
Track
| Time (UTC) | Position | Wind | Pressure | Status |
|---|---|---|---|---|
| Nov 18, 00:00 | 13.3N 90.0E | 20 kt | 1007 mb | Disturbance |
| Nov 18, 06:00 | 14.0N 88.9E | 25 kt | 1004 mb | Tropical depression |
| Nov 18, 12:00 | 14.7N 87.8E | 25 kt | 1004 mb | Tropical depression |
| Nov 18, 18:00 | 14.8N 86.9E | 25 kt | 1004 mb | Tropical depression |
| Nov 19, 00:00 | 14.8N 86.1E | 35 kt | 996 mb | Tropical storm |
| Nov 19, 06:00 | 15.0N 85.6E | 35 kt | 996 mb | Tropical storm |
| Nov 19, 12:00 | 15.0N 85.1E | 40 kt | 993 mb | Tropical storm |
| Nov 19, 18:00 | 14.9N 84.5E | 40 kt | 993 mb | Tropical storm |
| Nov 20, 00:00 | 15.1N 84.2E | 50 kt | 985 mb | Tropical storm |
| Nov 20, 06:00 | 15.3N 84.1E | 50 kt | 985 mb | Tropical storm |
| Nov 20, 12:00 | 15.5N 84.0E | 55 kt | 982 mb | Tropical storm |
| Nov 20, 18:00 | 15.6N 83.8E | 60 kt | 978 mb | Tropical storm |
| Nov 21, 00:00 | 15.7N 83.6E | 65 kt | 974 mb | Typhoon |
| Nov 21, 06:00 | 15.9N 83.3E | 70 kt | 970 mb | Typhoon |
| Nov 21, 12:00 | 16.1N 83.0E | 65 kt | 974 mb | Typhoon |
| Nov 21, 18:00 | 16.1N 82.5E | 65 kt | 974 mb | Typhoon |
| Nov 22, 00:00 | 16.1N 82.0E | 60 kt | 978 mb | Tropical storm |
| Nov 22, 06:00 | 16.2N 81.5E | 55 kt | 982 mb | Tropical storm |
| Nov 22, 12:00 | 15.8N 80.9E | 30 kt | 1000 mb | Tropical depression |
| Nov 22, 18:00 | 16.1N 80.1E | 25 kt | 1004 mb | Tropical depression |
| Nov 23, 00:00 | 16.5N 79.4E | 20 kt | 1007 mb | Disturbance |
| Nov 23, 06:00 | 17.2N 78.8E | 20 kt | 1007 mb | Disturbance |
Other North Indian storms of 2013
- Tropical Storm Mahasen:ViyaruNorth Indian · 2013
- Unnamed tropical depressionNorth Indian · 2013
- Unnamed tropical depressionNorth Indian · 2013
- Unnamed tropical depressionNorth Indian · 2013
- Cyclone PhailinNorth Indian · 2013 · 45 deaths
- Unnamed tropical stormNorth Indian · 2013
- Cyclone MadiNorth Indian · 2013
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.