Bangladesh will experience periods of weather instability as forecasted by the Bangladesh Meteorological Department (BMD). Widespread rains, thunderstorms, and high winds will affect most divisions.
High-Risk Coastal Districts
Coastal districts are expected to receive the worst impacts due to sudden weather changes and increased wind activity from the strong storms that will develop from this weather system during this time. Districts likely to be impacted include Patuakhali, Barishal, Khulna, Noakhali, Chattogram, Cox’s Bazar, Cumilla, and Bhola. Typical sustained winds in these coastal districts are expected to be 80 kilometres per hour (50 mph) with heavy rain, lightning, and hail falling within some of these areas. Districts exposed to the coast will be affected by rapid weather changes.
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Duration and Weather Intensity
The active portion of the weather system is expected to remain in place for 48-120 hours (April 17-21, 2026) during which time some portions will experience intermittent thunderstorms, high winds, and possibly hailstorms. The Chattogram division should experience localised thunderstorms daily.
| Date | Weather Condition | Risk Level |
| April 17–18 | Light to moderate rain with thunderstorms | Medium |
| April 19–20 | Heavy rain, strong winds, and lightning | High |
| April 21 | Scattered showers, easing conditions | Medium |
Advisories for Fishermen
Maritime warning signals may be issued (No. 2 or higher) for rough seas. Fishermen in the coastal areas (Cox’s Bazar, Bhola, Patuakhali and Chattogram) should use extreme caution when fishing and avoid deep-sea travel. Follow all official weather advisories regarding severe weather (thunderstorms, heavy rain) with strong winds.
Summary
The weather in Bangladesh has become very severe over the next few days, but may only last a short time. The coastal districts are at the greatest risk from these weather conditions. Fishermen must take precautionary steps to prevent damage and save lives.
FAQs
1. How long will the bad weather last in Bangladesh?
The current weather system is expected to continue for 48 to 120 hours (April 17–21, 2026).
2. Which areas are most affected?
Coastal districts like Cox’s Bazar, Chattogram, Bhola, and Barishal are at the highest risk.
3. Will wind speeds be dangerous?
Yes, wind speeds may reach up to 80 km/h, which can cause damage to weak structures and trees.
4. Is it safe for fishermen to go to sea?
No. Fishermen are strongly advised to stay ashore due to rough sea conditions and lightning risks.
5. Can hailstorms occur during this period?
Yes, isolated hailstorms are possible in some regions along with thunderstorms.
