A storm can cause dangerous rain without reaching the wind speed required for a cyclone name. The September system near Kalingapatnam remained a deep depression while its rain hazard continued inland.
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The name follows the wind
The video begins with the name “Cyclone Arnab,” which appears in online discussion. That label does not make it the official name of the system.
The India Meteorological Department, or IMD, uses sustained wind speed to classify these storms. Sustained wind means wind measured over a specified averaging period, rather than a brief gust.
A deep depression has sustained winds of 28 to 33 knots. The cyclonic-storm category starts at 34 knots, or about 62 kilometres per hour. Naming begins at that category.
The video compares a reported 30-knot wind with the 34-knot threshold. The difference is four knots. However, the reviewed reports do not establish that 30 knots is the system's lifetime maximum.
The secure conclusion is its official classification as a deep depression. The article does not treat the video's maximum-wind claim or the next available name as a current bulletin.
The track from the coast
IMD places the coast crossing near Kalingapatnam between 11 PM on September 23 and 1 AM on September 24, 2026. Thus, giving September 23 alone leaves out part of the reported crossing interval.
Later observations follow the weakening system inland through central India. Its path includes Chhattisgarh and Madhya Pradesh, toward southeastern Uttar Pradesh.
The track describes the position of the weather system. Its rain can cover a wider area than the line on a map. Crossing land also does not immediately remove the moisture that supports rain.
The western disturbance
IMD's September 26 bulletin also identifies a western disturbance. This is a weather disturbance in the winds that approach from the west.
The video uses rising moist air to explain how such weather patterns can support heavy rain. Rising air cools, and its water vapour can condense into cloud droplets.
The drawing of two systems meeting simplifies a wider circulation pattern. The bulletin establishes their presence, but does not measure each system's separate contribution to the rainfall.
Rainfall and damage
IMD reports 34 centimetres at Muhammadi in Kheri during the 24 hours ending at 8:30 AM on September 26. The same report lists 17 centimetres at Kanpur and 15 centimetres at Lucknow.
These are station rainfall depths for a stated interval. They are not uniform totals for the whole state. They also measure something different from the wind speed used to name the storm.
The narration includes a death toll from news reporting. The weather sources used here do not verify that toll, so this article does not present it as a confirmed count.
What this means
Wind classification and rainfall danger answer different questions. An unnamed depression can still produce damaging rain and flooding.
- Read the location and issue time of the official bulletin.
- Check rainfall and impact warnings as well as the wind category.
- Use current district advice for present decisions.
FAQ
Was Arnab the official name of this system?
No. IMD classified the system discussed here as a deep depression.
Does a gust decide the category?
The category uses sustained wind, so a brief gust is not the same measurement.
Does a lower wind category mean light rain?
No. The wind category does not describe every water-related impact.