Arnab

Very Severe Cyclonic Storm2026Post-Monsoon
Arnab - Image 1

Overview

Cyclone Arnab (IMD designation BOB/08/2026) formed as a Depression over the eastcentral and adjoining southeast Bay of Bengal on 25 October 2026. It intensified into a Deep Depression and then Cyclonic Storm Arnab, and on the night of 26 October became a Very Severe Cyclonic Storm over the westcentral Bay of Bengal. It crossed the Andhra Pradesh and Yanam coasts southwest of Yanam, about 20 km east-northeast of Narsapur, early on 28 October as a Very Severe Cyclonic Storm with maximum sustained winds of 125-135 km/h gusting to 150 km/h, and weakened into a Severe Cyclonic Storm over land that morning. Moving north-northwest and then north into south Chhattisgarh, it weakened into a Deep Depression late on 28 October and a Depression by the morning of 29 October, bringing extremely heavy rain to south Odisha. Its remnant weakened into a well-marked low pressure area over central Chhattisgarh later on 29 October and into a low pressure area over north Chhattisgarh and adjoining East Madhya Pradesh by the morning of 30 October, after bringing up to 280 mm of rain to Kusmi in Balrampur district, Chhattisgarh. The rain caused river flooding in Gajapati district, where the Mahendratanaya overflowed into villages in Goshani block and a bridge collapsed in Mohana block, pushed the Vamsadhara above its danger mark, and swelled rivers flowing into Chhattisgarh. In Andhra Pradesh about 2.24 lakh hectares of crops, mostly paddy in the Godavari delta districts, were inundated or damaged. At least five deaths were reported in Andhra Pradesh, along with widespread damage to trees, power lines, roads, houses and crops. The name Arnab was proposed by Bangladesh.

Timeline

Formation
25 October 2026
Dissipation
30 October 2026
Duration
5 days

Affected Areas

Andhra PradeshYanam (Puducherry)OdishaChhattisgarhJharkhandMadhya PradeshWest Bengal

Key Statistics

Maximum Wind Speed
135 km/h
Peak Gusts
150 km/h
Landfall
Andhra Pradesh & Yanam coast, southwest of Yanam (about 20 km ENE of Narsapur, 60 km SW of Kakinada)
28 October 2026 · 135 km/h winds
Crossed as a Very Severe Cyclonic Storm, 125-135 km/h gusting 150; landfall process began around 0120 IST and was complete by mid-morning (IMD)
Minimum Pressure
Not yet classified
Basin
Bay of Bengal
Season
Post-Monsoon
Casualties
5
Economic Damage
Not yet assessed

IMD District Warnings

Valid from 8:30 am IST on 28 October to 8:30 am IST on 29 October, as Arnab moved inland across south Odisha.

No warningWatch - be awareAlert - be preparedWarning - take action
IMD's colour-coded district warnings for Arnab, by day. Tap a district for its level.

Source: IMD press release no. 6 (28 October 2026): Meteorological Centre Amaravati's Andhra Pradesh map (issued 27 October) and Meteorological Centre Bhubaneswar's Odisha map (issued 28 October)

Rainfall Recorded

Each figure is the rain measured at that place over about one day. Pick a day to see its exact time window.

Arnab came ashore southwest of Yanam, near Narsapur (West Godavari), early on 28 October. The heaviest rain fell far to the north of the landfall point, over north coastal Andhra Pradesh and then south Odisha.

Wettest place
546 mm
Patrapur, Odisha · 29 Oct
Places reporting
25
13 with extremely heavy rain
States
5
Odisha, Chhattisgarh, Andhra Pradesh, West Bengal, Jharkhand

Odisha

Highest 546 mm · 7 places
  • PatrapurGanjam district · 29 Oct
    546 mmExtremely heavy
  • SoradaGanjam district · 29 Oct
    503 mmExtremely heavy
  • G. UdayagiriKandhamal district · 29 Oct
    462 mmExtremely heavy
  • MahendragarhGajapati district · 29 Oct
    458 mmExtremely heavy
  • SanakhemundiGanjam district · 29 Oct
    388 mmExtremely heavy
  • ChikitiGanjam district · 29 Oct
    309 mmExtremely heavy
  • BhograiBalasore district · 30 Oct
    190 mmVery heavy
    Reported by IMD as 19 cm

Chhattisgarh

Highest 280 mm · 2 places
  • KusmiBalrampur district · 30 Oct
    280 mmExtremely heavy
    Reported by IMD as 28 cm
  • Sukma30 Oct
    70 mmHeavy
    Reported by IMD as 7 cm

Andhra Pradesh

Highest 261.5 mm · 14 places
  • KannuripalemAnakapalli district · 28 Oct
    261.5 mmExtremely heavy
    Window ends 4 am IST, 28 Oct
  • Vizianagaram (KVBR School)Vizianagaram district · 28 Oct
    259.7 mmExtremely heavy
    Window ends 4 am IST, 28 Oct
  • Visakhapatnam (16th Bn area)Visakhapatnam district · 28 Oct
    259.1 mmExtremely heavy
    Window ends 4 am IST, 28 Oct
  • IchchapuramSrikakulam district · 29 Oct
    240 mmExtremely heavy
    Reported by IMD as 24 cm
  • SompetaSrikakulam district · 29 Oct
    220 mmExtremely heavy
    Reported by IMD as 22 cm
  • Visakhapatnam28 Oct
    216.9 mmExtremely heavy
  • KalingapatnamSrikakulam district · 28 Oct
    147.5 mmVery heavy
  • TuniKakinada district · 28 Oct
    123.3 mmVery heavy
  • KakinadaLandfall area28 Oct
    118.4 mmVery heavy
  • MachilipatnamKrishna district · 28 Oct
    115.2 mmHeavy
  • Srikakulam30 Oct
    80 mmHeavy
    Reported by IMD as 8 cm
  • NarsapurLandfall areaWest Godavari district · 28 Oct
    48.6 mmModerate
  • Bapatla28 Oct
    15.9 mmModerate
  • OngolePrakasam district · 28 Oct
    0.4 mmLight

West Bengal

Highest 80 mm · 1 place
  • DighaPurba Medinipur district · 30 Oct
    80 mmHeavy
    Reported by IMD as 8 cm

Jharkhand

Highest 80 mm · 1 place
  • DaltonganjPalamu district · 30 Oct
    80 mmHeavy
    Reported by IMD as 8 cm

What the numbers mean

1 mm of rain is 1 litre of water on every square metre of ground. IMD grades a day’s rain like this:

  • Extremely heavy204.5 mm or moreRivers can flood within hours; landslides likely in hilly areas.
  • Very heavy115.6–204.4 mmWaterlogging, overflowing streams and disrupted roads are likely.
  • Heavy64.5–115.5 mmWaterlogging in low-lying areas and slow traffic.
  • Moderate15.6–64.4 mmA steady rainy day.

Source: IMD station observations, as reported by the press on 28-29 October 2026 (India.com, Dynamite News, The Daily Pioneer, Business Today), and IMD's press release of 30 October 2026. Provisional until IMD publishes its final report.